WO2000056565A1 - Assembly consisting of a clutch associated with an electrical machine, in particular for motor vehicle - Google Patents

Assembly consisting of a clutch associated with an electrical machine, in particular for motor vehicle Download PDF

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Publication number
WO2000056565A1
WO2000056565A1 PCT/FR2000/000677 FR0000677W WO0056565A1 WO 2000056565 A1 WO2000056565 A1 WO 2000056565A1 FR 0000677 W FR0000677 W FR 0000677W WO 0056565 A1 WO0056565 A1 WO 0056565A1
Authority
WO
WIPO (PCT)
Prior art keywords
primary
flywheel
skirt
assembly
assembly according
Prior art date
Application number
PCT/FR2000/000677
Other languages
French (fr)
Inventor
Giovanni Grieco
Original Assignee
Valeo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo filed Critical Valeo
Priority to DE10084360.3T priority Critical patent/DE10084360B3/en
Priority to AU33007/00A priority patent/AU3300700A/en
Publication of WO2000056565A1 publication Critical patent/WO2000056565A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/44—Drive Train control parameters related to combustion engines
    • B60L2240/441—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/20—Drive modes; Transition between modes
    • B60L2260/26—Transition between different drive modes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/145—Structure borne vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • a clutch in particular for a motor vehicle, generally comprises a clutch mechanism essentially consisting of a cover, a pressure plate and engagement means intended to tighten at least one friction lining, carried by a friction disc, between the pressure plate and a reaction plate belonging to a flywheel stalled in rotation on the crankshaft of the internal combustion engine.
  • flywheel of the double type, or double damping flywheel of the type comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch ; circumferential action torsional damping means are kinematically disposed between the primary and secondary flywheels; as is known, such an arrangement allows excellent filtering of the torsional oscillations generated by the engine, particularly in low revs, with the consequence of a significant reduction in noise, in particular in the gearbox.
  • the present invention relates to an assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle in which the steering wheel is a double damping flywheel, said assembly making it possible to better erase acyclisms, of the sinusoidal type, of the combustion engine. internal.
  • an assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle equipped with a steering wheel, is characterized in that the steering wheel is a double damping flywheel of the kind comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch clutch mechanism which comprises a cover, clutch-declutching means and a pressure plate, damping means for circumferential twist being kinematically disposed between the primary and secondary flywheels, the rotor of the electric machine being carried by the primary flywheel, the secondary flywheel comprising a plate having a friction face with which is adapted to cooperate at least one gasket a friction disc under the action of the engaging means via the pressure plate.
  • the steering wheel is a double damping flywheel of the kind comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch clutch mechanism which comprises a cover, clutch-declutching means and a pressure plate, damping means for
  • the primary inertia that is to say the inertia of the primary flywheel increased by that corresponding to the rotor of the electric machine, therefore linked to the crankshaft of the vehicle engine, perfectly erases the acyclisms of the engine.
  • the primary flywheel has a central hub by which it is connected to the crankshaft of the engine, and a so-called primary skirt of axial orientation at the external periphery of which the rotor is secured.
  • the rotor is secured to the primary skirt by shrinking.
  • the secondary flywheel plate is provided at its external periphery with a so-called secondary skirt of axial orientation surrounded by the primary skirt.
  • the primary and secondary skirts extend axially in the same direction.
  • the primary and secondary skirts extend axially towards one another.
  • the assembly only comprises a friction disc.
  • the assembly comprises two friction discs, the linings of which cooperate with an intermediate plate placed axially between the two friction discs and integral in rotation with the secondary flywheel.
  • the primary skirt surrounds the friction disc or discs.
  • the friction disc (s) is (are) offset axially relative to the primary skirt.
  • the torsion damping means comprise elastic means with circumferential action and friction means with axial action.
  • the elastic means consist of a row of springs arranged circumferentially and bearing on one side on the primary flywheel and on the other side on the secondary flywheel.
  • the elastic means consist of two rows of springs arranged circumferentially and bearing on one side on the primary flywheel and on the other side on the secondary flywheel.
  • the springs of the two rows are in parallel.
  • the springs of the two rows are in series.
  • the primary skirt surrounds the springs.
  • the primary and secondary skirts extend axially in the same direction, there are two friction discs and two rows of springs surrounded by the primary skirt, which also surrounds the clutch mechanism including the cover. is attached to the end of the secondary skirt.
  • the plate of the secondary flywheel is provided at its internal periphery with an annular flange which carries a crown, a bearing means being placed between the internal periphery of the crown and the external periphery of the central hub of the primary flywheel.
  • the crown carries a generally transverse web provided with windows at its periphery, the radial edge of which constitutes secondary support for the elastic means.
  • the primary supports of the elastic means arranged in pairs on either side of the veil, are constituted, on one side, by a support pad carried by the primary flywheel and, on the other side, by a stamped formed in the bottom of a cut whose axial cylindrical edge extends between the primary and secondary skirts and carries a transverse rim for fixing the cut at the end of the primary skirt.
  • the lining of a friction disc is adapted to be clamped between the secondary flywheel plate and an intermediate plate while that that of the other friction disc is adapted to be clamped between the intermediate plate and the pressure plate of the clutch mechanism.
  • the secondary skirt has axial notches, forming mortises, into which penetrate radial tabs, forming tenons, of the intermediate plate.
  • the assembly only comprises a friction disc and two rows of springs and the secondary flywheel plate with which the lining of the friction disc cooperates has at its internal periphery a hub-shaped collar and extends, from the collar, transversely beyond the rotor which it runs along.
  • the primary skirt of the primary flywheel surrounds the two rows of springs arranged axially side by side.
  • the bottom of a section extends axially between the two rows of springs and carries pads arranged back to back for primary support of the springs, the axial cylindrical edge of the section extending along the internal periphery of the primary skirt and having a transverse rim for fixing the cut at the end of said primary skirt.
  • the other primary supports of the springs are constituted by bearing pads, for the row on the clutch mechanism side, by a support flange secured to the end of the secondary skirt and, for the other row, by the bottom of the C-shaped primary steering wheel.
  • the collar is secured to a crown, with axial interposition of a veil, a bearing means being placed between the internal periphery of the crown and the external periphery of the central hub of the primary flywheel.
  • the secondary supports for the springs are formed by the radial edges of indentations, for the row on the clutch mechanism side, in the web and, for the other row, in a web carried by the crown.
  • the friction means of the torsion damping means comprise a friction washer having a notch adapted to receive an axial tab of the web, said friction washer being applied against the internal face of the bottom of the C-shaped primary flywheel by an elastic washer bearing on the central hub with the interposition of an application washer.
  • the primary and secondary skirts extend axially towards one another, the assembly only comprises a friction disc and two rows of springs and the central hub of the primary flywheel is integral two axially arranged spacer washers, a first web being pinched between the central hub and the first spacer washer and a second web being pinched between the two spacer washers, a bearing means being placed between the secondary flywheel plate and the second spacer washer .
  • the primary supports of the springs of the two rows are constituted by the radial edge of notches formed at the periphery of the sails and the secondary supports, arranged in pairs on either side of the sails, are produced, on one side, by support pads carried by the bottom of a cut extending between the two rows of springs and extended by a cylindrical edge extending at the internal periphery of the secondary skirt provided with a flange for fixing the cut at the end of said skirt and, on the other side, for the row on the clutch mechanism side (160), by support pads carried by the plate and, for the other row, by stampings on a flange support fixed at the end of the secondary skirt.
  • the friction means of the torsion damping means comprise a friction washer having a notch adapted to receive an axial tab originating from the bottom of the section, said friction washer being applied against the opposite face of the first web by an elastic washer. resting on the first spacer washer with the interposition of an application washer.
  • the secondary flywheel plate with which the lining of the friction disc cooperates extends transversely beyond the rotor which it runs along.
  • a declutching stop is provided for action on the declutching means associated with the clutching means to counteract at will the action of the clutching means, the declutching stop. belonging to a release device of the concentric type intended to be crossed by a driven shaft.
  • the declutching device comprises, on the one hand, a piston carrying the declutching stopper mounted axially movable relative to a fixed part having a blind annular cavity of axial orientation delimited by the piston to define a working chamber to variable volume.
  • the engaging and declutching means belong to a diaphragm comprising a peripheral part in the form of a Belleville washer, constituting the engaging means, extended by a central part constituting the declutching means, said central part being fragmented into radial fingers by blind slots, of which the bottoms forming enlarged orifices at the internal periphery of the peripheral part.
  • FIG. 1 is a sectional view of an assembly according to the invention.
  • an assembly according to the invention comprises a double damping flywheel 10, an electric machine 50 and a clutch mechanism 60.
  • the double flywheel 10 comprises a primary flywheel 11 and a secondary flywheel 12.
  • the primary flywheel 1 1 has a central hub 13 by which it is connected, here by screws 14, to the crankshaft 1 of the engine of the motor vehicle;
  • the primary flywheel 11 is of revolution, of C-shaped axial section, and has an external skirt 15 called primary, of annular shape and of axial orientation.
  • the secondary flywheel 12 comprises a plate 16 of annular shape of transverse orientation provided at its internal periphery with an annular flange 17 and at its external periphery with a skirt 18 called secondary axially oriented, the axial free end of the secondary skirt 18 being generally at vertical to that of the primary skirt 15, the primary flywheel 11 and its primary skirt 15 surrounding the secondary flywheel 12.
  • the secondary flywheel 12 is intended to receive a clutch mechanism 60, as described below, and constitutes a reaction plate adapted to cooperate with a friction disc associated with the clutch mechanism 60.
  • the secondary flywheel 12 is thus intended to be disengageably linked in rotation to the input shaft 2 of the gearbox, via the clutch mechanism 60, forming a unitary assembly.
  • Circumferential action torsional damping means are arranged kinematically between the primary 11 and secondary 12 flywheels; these torsion damping means comprise elastic means with circumferential action and friction means with axial action.
  • the internal flange 17 of the secondary flywheel 12 carries, applied on its face facing the primary flywheel 11, a crown 19 which is fixed to it by screws 20.
  • a bearing means here a ball bearing 21, is placed between the periphery internal of the crown 19 and the external periphery of the central hub 13 of the primary flywheel 11, the primary 11 and secondary 12 flywheels being caused to rotate relative to each other.
  • the internal cylindrical bearing surface of the internal raceway, called the internal ring, of the bearing 21 is machined at the end of the central hub 13, at the external periphery of the latter, so that a transverse bearing surface 22 is set axially by a side of the internal raceway with respect to the central hub 13; on the other side, this is wedged by a washer 23 with holes for the passage of the screws 14, the head of which applies the washer 23 to the internal raceway and the front face of the central hub 13 with respect to which said raceway internal bearing is therefore locked axially in both directions.
  • the primary flywheel 1 1 with its primary skirt 15 and its central hub 13 defines, in cooperation with the secondary flywheel 12, the crown 19 and the bearing 22, an annular volume 24 in which the torsion damping means are placed.
  • the elastic means are coil springs 25 here of the concentric type extending circumferentially by bearing on one side on the primary flywheel 11 and on the other side on the secondary flywheel 12.
  • the secondary flywheel side supports 12, called secondary supports, are constituted by a radial edge 26 of a notch cut out at the external periphery of a generally transverse web 27. The notch is open to the outside.
  • the veil 27, here metallic, is secured by its internal periphery to the crown 19, here by rivets 28 which press the veil 27 on the transverse face of the crown 19 facing the primary flywheel 11.
  • the veil 27 extends towards the axis to the right of the outer race, called the outer ring, of the bearing 21 so as to wedge it on one side axially with respect to the ring 19; the external cylindrical bearing surface of the external raceway is machined over only a fraction of the internal periphery of the crown 19 so that a transverse bearing surface 29 is defined axially wedging on the other side this external raceway relative to the crown 19: thus, this external raceway is wedged on both sides with respect to said ring 19.
  • the supports on the primary flywheel side 11, called primary supports, for the springs 25 are pairs of supports, the supports of each pair being arranged axially on either side of the web 27: one of these supports is constituted by the radial face of a support pad 30 secured to the primary flywheel 11 by rivets 31; the other support is constituted by the front face of a partial stamping 32 produced in the bottom 34 of a sheet metal part in the form of a cup 33; the bottom 34 is provided with an opening 35 through which it surrounds the crown 19 while being at the right of the latter.
  • the bottom 34 of the section 33 extends along an axial cylindrical edge 36, which runs along the primary skirt, in contact with the internal periphery of the latter in which it fits; this edge 36 ends with a transverse rim 37 pressed against the transverse end face of the primary skirt 15 by screws 38 securing the section 33 to the primary flywheel 11.
  • the friction means of the torsion damping means comprise a friction washer 40 surrounding the central hub 13 of the primary flywheel 11 and having at its periphery at least one notch 41 adapted to receive with or without play an axial tab 39 coming from the internal periphery veil 27 by cutting and folding thereof.
  • the friction washer 40 is pressed against the internal face of the bottom of the primary flywheel 1 1 in the form of a C by means of an elastic clamping washer 42 with axial action, conventionally a Belleville washer, by means of an application washer 43, the elastic washer 42 resting on a circlip 44 carried by the central hub 13.
  • the assembly is housed inside a fixed clutch bell 3 of the motor vehicle.
  • the electric machine 50 is arranged around the double flywheel 10; it comprises a rotor 51 and a stator 52 coaxial, a gap 53 existing between the rotor 51 and the stator 52; the rotor 51 includes permanent magnets and is carried by the primary flywheel 11, at the external periphery of the primary skirt 15 to which it is secured, for example by shrinking.
  • the stator 52 has electrical windings 54 and is carried internally by the clutch bell 3.
  • the clutch mechanism 60 comprises a cover 61, a pressure plate 62 and a diaphragm 63.
  • the cover 61 is metallic, here in stamped sheet metal; it has a bottom 64, perforated centrally, generally of transverse orientation, perpendicular to the axis of the assembly, provided at its outer periphery with an annular flange 65 for fixing; the cover 61 thus has the overall shape of a flat plate.
  • a clutch comprises engaging means associated with declutching means; these can be declutching levers which can act on helical springs with axial action constituting the engagement means; alternatively, the release levers are constituted by fingers belonging to the central part of a part whose external periphery is axially elastic or devoid of axial elasticity, acting on a Belleville washer forming the engagement means.
  • the engagement and disengagement means belong to the same part, the diaphragm 63, which comprises a peripheral portion in the shape of a Belleville washer extended internally by a central portion fragmented into radial fingers by blind slots opening internally into a central opening which has the diaphragm 63 whose shape, in the free state, is tapered.
  • the slots open at their outer periphery into enlarged orifices forming the bottom of the slots.
  • the fingers of the diaphragm 63 form declutching levers and therefore the declutching means, while the peripheral part, in the form of a Belleville washer, of the diaphragm 63 constitutes the clutch engaging means, said orifices being located at the internal periphery of the Belleville washer of diaphragm 63.
  • the declutching means are provided to counteract at will the action of the clutching means under the action of a declutching stop 66 belonging to a declutching device 166 of the concentric type, in order to reduce the axial space requirement between the bottom of the bell 3 and the clutch mechanism
  • the stop 66 can be actuated by a declutching fork pivotally mounted, for example by means of a ball joint, on the bottom of the bell 3 constituting a fixed part.
  • a declutching fork pivotally mounted, for example by means of a ball joint, on the bottom of the bell 3 constituting a fixed part.
  • the declutching stop 66 may belong to a concentric declutching device with cable control, this stop being then mounted on a driven part movable in translation and fixed in rotation, said part being in relation to screw nut with a driving part fixed in translation and movable in rotation.
  • the driving part carries a pulley on which the control cable is wound.
  • the driving part is controlled by a transverse electric motor.
  • the concentric declutching device 166 is of the hydraulic type and comprises two parts in relation to the piston cylinder, namely a fixed part 167, delimiting a blind annular cavity 168 of axial orientation, and a piston 169 mounted axially movable relative to the fixed part.
  • This piston 169 carries the declutching stop 66 and enters the cavity
  • the fixed part 167 can be in one piece of moldable material.
  • the fixed part 167 comprises, for reduction of the radial size, two coaxial parts, namely an external body surrounding a metal guide tube which is axially longer than the external body.
  • the bottom of the cavity 168 is delimited by a transverse rim belonging to the guide tube assembled to the external body using an intermediate assembly part.
  • a static seal is provided between the outer body and the guide tube carrying at its free end a stop to limit the displacement of the piston 169 when the declutching device 166 is not mounted on the bell 3.
  • the channel 180 communicates with a groove opposite the edge of the guide tube.
  • a preload spring 171 acts between the external body of moldable material and the clutch release bearing 66 to maintain the latter in constant support on the declutching means 63.
  • the declutching stop 66 comprises a ball bearing with a profiled rotating ring for punctual contact with the internal ends of the fingers of the diaphragm 63 and a non-rotating ring axially coupled to the piston 169, which thus carries the stop 66.
  • the outer ring of the bearing is rotating, while the inner ring of the bearing is fixed in rotation and has at its internal periphery a radial flange bearing on a front shoulder of the piston 169, said flange being pressed against said shoulder by a washer.
  • elastic with axial action here in the form of a Belleville washer, bearing on the piston.
  • the stop 66 has a flag shape so that the inner ring of the ball bearing is intended to surround the front end of reduced diameter of the outer body to reduce the axial bulk, knowing that the outer body is intended to be fixed on the bottom of the bell 3, directly, using ears, or indirectly, using an adapter sole and a bayonet mount.
  • the outer body has fixing lugs and the stop 66 is of the self-centering type because it can move radially in contact with the shoulder of the piston under the control of the elastic washer with axial action.
  • the stop 66 is of the self-centering type because it can move radially in contact with the shoulder of the piston under the control of the elastic washer with axial action.
  • WO98 / 14713 showing the assembly of the external body with the guide tube.
  • a non-referenced protective bellows is provided for good sliding of the piston 169.
  • the declutching device 166 is of the concentric type because it is intended to be crossed by the input shaft of the gearbox 2. The device 166 therefore surrounds the shaft 2.
  • the clutch mechanism 60 is here associated with two friction discs 70.
  • the friction discs 70 carry at their outer periphery at least one friction lining 72 intended to be clamped between two plates under the action of the engagement means 63.
  • the friction discs 70 have a hub 71 internally grooved for connection in rotation with the driven shaft 2.
  • the friction lining 72 is secured to a support 73 rigidly or resiliently coupled to the hub 71.
  • the shaft 2 therefore passes through the declutching device 166 and the hubs 71 of the friction discs 70.
  • the end of the shaft 2 is received in a pilot bearing carried by the output shaft 1 of the internal combustion engine , namely, here, the crankshaft of the internal combustion engine of the vehicle.
  • Tree 1 is therefore a leading tree.
  • the support 73 can be embedded in the lining 72.
  • two identical linings 72 are arranged axially on either side of the support 73 axially elastic, by being fixed thereto by gluing; this makes it possible to reduce the axial size, the dead thickness of the linings 72 intended for the riveting operation being eliminated, when, as a variant, the linings 72 are fixed to the support 73 by riveting, the support 73 being shaped at its periphery external to be axially elastic and progressively crushed.
  • the friction linings 72 can be glued directly into the central bearing areas of the tripod blades described in the document FR-
  • the lining 72 of a friction disc 70 is adapted to be clamped between the plate 16 of the secondary flywheel 12 and an intermediate plate 67 while that of the other friction disc 70 is adapted to be clamped between the intermediate plate 67 and the pressure plate 62 of the clutch mechanism 60.
  • the friction discs 70, the intermediate plate 67 and the clutch mechanism 60 are housed inside the cup 33, and therefore of the primary skirt 15.
  • the cover 61 is fixed by its external periphery at the end of the secondary skirt 18, here by screws 68.
  • the pressure plate 62 has an annular boss 69 of axial orientation directed towards the bottom 64 of the cover 61 for contact with the external periphery of the Belleville washer of the diaphragm 63; this boss 69 is split and molded with the pressure plate 62.
  • the internal periphery of the Belleville washer of the diaphragm 63 is pivotally or pivotally mounted between a primary support here from the bottom 64 of the cover 61 by stamping and a secondary support here elastic formed by a tapered washer secured to the cover 61 by tabs from cutting and folding of the bottom 64 of the cover 61.
  • the tabs pass axially through the enlarged orifices of the diaphragm 63 and are folded at their free end radially outwards to form a wedge bend for the washer.
  • the secondary skirt 18 has axial notches 74 forming mortises.
  • notches 74 penetrate, axially sliding, projecting radial legs 75, forming tenons, from the outer periphery of the intermediate plate 67; the latter is therefore linked in rotation to the secondary flywheel 12 by a link of the tenon-mortise type allowing an axial displacement of the intermediate plate 67 relative to the secondary flywheel 12.
  • the pressure plate 62 could be linked in rotation to the secondary flywheel 12 in the same way, with projecting lugs radially engaged in the notches 74; here, it is linked in rotation to the cover 61 by tangential tongues 76 with axial action allowing axial movement of the pressure plate 62 relative to the cover 61 itself linked to the secondary flywheel 12; the tongues 76 are linked to the cover 61 by rivets 77 and to radial projecting lugs of the pressure plate 62 also by rivets 78.
  • the tongues 76 exert an elastic return action of the pressure plate 62 in the direction of the bottom 64 of the cover 61 and the pressure plate 62 has a friction face for contact with the lining concerned 72 of the friction disc 70, while the intermediate pressure plate 67 has frontly and dorsally a friction face for contact with the friction linings 72 respectively of the disc 70 adjacent to the secondary flywheel 12 and of the disc 70 adjacent to the pressure plate 62.
  • the Belleville washer of the diaphragm 63 that is to say the clutch engagement means, is in contact, on the one hand, at its internal periphery with the primary support, and, on the other share, at its outer periphery with the boss 69 of the pressure plate 62.
  • the diaphragm 63 therefore urges the pressure plate 62 towards the plate 16 of the secondary flywheel 12 so that the friction linings 72 of the friction discs 70 are tight between the pressure plates 62 and the secondary flywheel 12.
  • the friction discs 70 are therefore rotated so that the hubs 71, coupled with the linings 72, rotate the driven shaft 2.
  • the piston 169 of the declutching device 166 is in the retracted position, upper part of FIG. 1, and the cavity 168 is depressurized.
  • the piston 169 moves to the left, lower part of FIG. 1, and therefore drives the clutch release bearing 66, which then acts by pushing on the fingers of the diaphragm 63, to rotate the one -this.
  • the diaphragm 63 then leaves its primary support to take support on its secondary support. In this case, the load exerted by the diaphragm 63 on the pressure plate 62 decreases and then vanishes, the pressure plate 62 then following the movement of the diaphragm 63 under the return action of the tongues 76. The friction linings 72 are then released and the clutch disengaged. The engine torque is then not transmitted. When the cavity 168 is depressurized, the diaphragm 63 brings the piston 169 back and the linings 72 are tight.
  • annular seal 46 is disposed, under the springs 25, between the internal face of the plate of the primary flywheel 11 and the web 27, as well as between the crown 19 and the edge of the central opening 35 formed in the bottom. 34 of section 33, this second seal 47 being in the form of an elastic washer.
  • the springs 25 are in a sealed annular volume which may contain lubricating grease.
  • the springs 25 have here a curved shape by being pre-bent and pieces in the form of a chute (not referenced) are interposed here between the springs 25 and the internal periphery of the skirt 15 to reduce wear.
  • the side walls facing this volume defined by the plate of the primary flywheel 11 and the bottom 34 of the cup 33 have a semi-toric shape adapted to the contour of the springs 25 which leads to overall dimensions of the assembly reduced axially.
  • the rotor 51 has a large axial extent and it is the same for the stator 52.
  • the machine 50 thus has a good efficiency.
  • the rotor 51 comprises a package of sheets, made of soft iron, mounted by hooping on the external periphery of the primary skirt 15 having at its free end a flange 45 projecting radially forming a stop for the rotor 51.
  • the package is therefore mounted hot of sheets by fitting on the external periphery of the primary skirt 15 until contact with the collar 45.
  • the sheets of annular shape thus form an axially oriented crown mounted by hooping on the primary skirt 15.
  • the sheets can be isolated by oxidation or provided with insulators.
  • the stator 52 is formed, similar to the rotor 51, from a package of annular sheets, made of soft iron, reconstituting a crown of axial orientation. Notches are made in the sheets for passage of windings of electric wires 54, the rotor 51 and the stator 52 being shown schematically. By injecting a controlled electric current into the stator windings, the electric machine 50 is transformed into a starter for the internal combustion engine of the vehicle.
  • the machine is here of the asynchronous electric motor type.
  • the electric machine can be of the synchronous electric motor or other type.
  • the machine when the engine is running, the machine acts as an alternator.
  • the internal combustion engine can be shut down at each stop and restarted using the machine.
  • the machine can constitute an electric brake and provide a surplus of energy to the internal combustion engine to assist it or prevent it from stalling; we can also filter vibrations.
  • the rotor 51 is fixed to the external periphery of the primary skirt 15 using grooves or by fitting with cones. In all cases, the rotor 51 is integral both in rotation and axially with the primary flywheel
  • the rotor 51 can be fixed on the primary skirt 15 using screws bearing on a fixing washer, passing through the sheet pack in a similar manner to that described in document DE-C-3 227 810.
  • Elastic elements can also be used.
  • the stator 52 is fixed here by hooping at its outer periphery on the bell. Any other form of fixing such as screwing is possible.
  • the method of fixing by shrinking favors the reduction of the radial bulk.
  • the assembly has all the desired comfort functions, while being compact radially and having good performance.
  • the springs 25 act circumferentially between the two flywheels 11, 12; alternatively, the springs can act radially for the rest position between the two flywheels as described in the review SAE 950 893, the springs belonging to cassettes.
  • the clutch can be equipped with a wear take-up device in particular to compensate for the wear of the friction linings and keep the diaphragm in a constant position when the clutch is engaged.
  • the clutch is of the pushed type because the stop 66 acts by pushing centrally on the diaphragm 63.
  • the clutch is of the pulled type.
  • the stop is coupled to a docking part acting behind the diaphragm and passing through the central opening of the diaphragm.
  • the declutching operation is carried out by pulling, via a docking piece, on the fingers of the diaphragm.
  • the peripheral part of the Belleville washer of the diaphragm is in contact, at its external periphery, with a support carried by the cover and its internal periphery with the boss of the pressure plate.
  • a support carried by the cover for example, to document FR-A-2 606 477 also showing a device for taking up wear.
  • the boss 69 of the pressure plate 62 can be movable relative to the pressure plate 62 to compensate for the wear of the friction linings, circumferentially acting springs acting between the pressure plate 62 and the boss 69, ramp means varying the axial distance between the boss 69 and the pressure plate 62.
  • the cover 63 may have no rim and have a generally transverse orientation bottom, extended by an annular bush of axial orientation in intimate contact with the internal periphery of the secondary skirt 18. The bush is then fixed on the skirt, by example by screws or any other means.
  • the cover 61 can be extended at its outer periphery to form an ignition target. Of course, one can provide more than two friction discs to further reduce the radial size.
  • the rotor may be shorter axially.
  • the rotor 51 as visible in FIG. 1 can be provided with a squirrel cage with copper or aluminum parts.
  • the secondary skirt is molded with the plate 16 of the secondary flywheel 12. As a variant, it is attached to said plate, for example by screws.
  • Metal inserts can be housed in the steering wheels to reinforce them.
  • the inserts, in section, have a square shape housed partly in the plate and partly in the skirt.
  • the inserts are of axial orientation, as described in document FR-A-2 718 806 to which reference will be made for more details.
  • the inserts in the secondary flywheel 12 can be used to fix the cover 61. These inserts can protrude from the secondary flywheel and form targets respectively for the electric machine and the engine ignition.
  • stop 45 can be replaced by inserts embedded in the primary skirt 15, the inserts having a rim folded radially outward to form the stop.
  • the machine 50 can be used to synchronize the speed of the shafts 1 and 2 to facilitate the change of gears.
  • the stop 66 it is advantageous for the stop 66 to be operated by a receiver, the transmitter of which is operated by an actuator controlled by a computer receiving the information coming from sensors receiving the speed of the shafts 1 and 2.
  • the machine 50 can be of the asynchronous type, as mentioned above, synchronous with magnet in the air gap or buried, with flux switching with single or hybrid magnets with excitations by stator windings, with brushless claws, with variable reluctance, single or double excitation, cross flow with Vernier effect.
  • FIG. 2 represents an overall variant according to the invention; in this figure, the parts identical to those of FIG. 1 or playing the same role, bear an identical reference or increased by one hundred and will therefore not be described again in detail.
  • the double damping flywheel 100 comprises elastic means consisting of two rows of springs arranged side by side axially and the clutch comprises only a friction disc.
  • Each row of springs 25 is here formed of concentric springs. More specifically, the primary skirt 115 of the primary flywheel 11 surrounds the two rows of springs 25 arranged side by side axially; the springs 25 of the two rows are kinematically coupled in parallel. To do this, the bottom 134 of the section 133 carries support pads 130 arranged back to back; an additional web 127A cooperates, here by means of notches open towards the outside as in FIG.
  • the veil 127A is disposed axially between the crown 119 and the flange 117, here in the form of a hub, of the secondary flywheel 112 by being fixed by the screws 120 which secure, by its flange 117, the secondary flywheel 112 to the crown 123.
  • the crown 119 carries a sleeve 119A directed towards the clutch mechanism 160, of diameter smaller than that of the crown 119, for centering the web 127A and the flange 117 of the secondary flywheel 112.
  • the sleeve 119A also constitutes an axial stop for the external raceway of bearing 121.
  • the support flange 134A is fixed at the end of the primary skirt 1 15 by the same screws which fix by its rim 137 the section 133 to the primary skirt 115; the support flange 134A extends radially beyond the external periphery of the primary skirt 115 to constitute an axial stop for the rotor 151 of the machine
  • the washer 123 is very thick and secured to the central hub 113 of the primary flywheel 111 for constituting a first sub-assembly comprising in particular the primary flywheel 111 carrying the springs 25, the cut 133, the support plate 134A, the bearing 121, the rotor 151 and the washer 123.
  • the plate 116 of the secondary flywheel 1 12, with which the lining of the friction disc 170 cooperates, extends radially, from its hub-shaped flange 117, beyond the rotor 151 along the support flange 137A and the rotor 151, its face turned towards the primary flywheel 111 conforming to the shapes thereof.
  • the friction disc 170 is unique and therefore has a larger diameter than that of the friction discs 70 of the variant of FIG. 1; the cover 161 of the clutch mechanism 160 is here hollow in shape and secured to the periphery of the plate 116 of the secondary flywheel 112 by the screws 168; a second sub-assembly is thus formed, comprising the secondary flywheel 112, the friction disc 170 and the clutch mechanism 160; the second sub-assembly and the first sub-assembly are secured by the screws 120 through passages 170A formed in the web of the hub of the friction disc 170; other passages 170B made in this veil allow the assembly of the assembly of the two sub-assemblies on the motor shaft 1 by the screws 14.
  • FIG. 3 represents another variant of the assembly according to the invention; in this figure, the parts identical to those of FIG. 1 or 2, or playing the same role, bear an identical reference or increased by two hundred and will not be described again in detail.
  • the double damping flywheel 200 also comprises elastic means constituted by two rows of springs arranged side by side axially and the clutch comprises only a friction disc, as in FIG. 2.
  • the secondary flywheel 212 has a secondary skirt 218, surrounded by the primary skirt 215, as in Figure 1, but here the skirts 218, 215 extend axially towards each other from respectively the plate 216 of the secondary flywheel 212 and the bottom of the primary flywheel 211 in the form of C.
  • the section 233 is reversed with respect to the section 133 of FIG. 2; it is fixed by its edge at the end of the secondary skirt 218 at the same time as the support flange 234A of which stampings serve to support the springs 25 of the row arranged on the side of the primary flywheel 211.
  • first web 227 Between the central hub 213 and the first spacer washer 223A is pinched a first web 227 and between the first 223A and second 223B spacer washers is pinched a second web 227A.
  • the webs 227 and 227A have, as before, notches at their outer periphery with the edge of which the springs 25 of each row of springs respectively cooperate.
  • the bottom 234 of the section 233 disposed between the two rows of springs, carries the support pads, as does the plate 216 of the secondary flywheel 212, for support of the springs 25 on either side of the sails 227 and 227A .
  • the friction washer 240 surrounds the first spacer washer 223A and cooperates in friction with the first web 227, being driven by an axial tab from the bottom 234 of the section 233 and applied by an elastic washer bearing on the first spacer washer 223A.
  • the bearing 221 is placed between the plate 216 of the secondary flywheel 212 and the second spacer washer 223B.
  • rivets 220A join the central hub 213 of the primary flywheel 211 and the first spacer washer 223A, while rivets 220B join the two spacer washers 223A and 223B, the rivets 220A and 220B being circumferentially offset.
  • the plate 216 of the secondary flywheel 212 extends radially beyond the rotor 251 that it runs along.
  • the clutch mechanism 160 and the friction disc 170 are identical to those of FIG. 2.
  • the primary flywheel 1 1, 111, 211, the reaction plate 16, 116, 216 and the intermediate plate 67 are advantageously made of moldable material, here cast iron.
  • the row or rows of springs 25 are housed under the rotor 51, 151, 251 of the electric machine. These springs 25 can be straight instead of being bent. Thanks to the presence of the springs 25, the friction disc or discs can be of the rigid type so that the friction pad or pads are rigidly connected to the hub concerned.
  • the section 33 of FIG. 1 makes it possible to stiffen the skirt 18 thanks in particular to its rim 37 pressed against the end face of the skirt 15, which thus is resistant despite the presence of the notches 74.
  • the bearing 21 is also installed in all cases under the rotor of the machine 50.
  • the drive of the friction washer 40, 140, 240 is carried out simply using at least one lug of axial orientation obtained by cutting and folding from the web 27, 127 or the bottom 234, that is i.e. from metal parts.
  • the web 227 has a double function since it serves as a friction surface.
  • the double damping flywheel is housed overall under the electric machine while being radially compact.
  • the attachment of the rotor to the primary skirt can alternatively be carried out by screwing.

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  • Transportation (AREA)
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  • Mechanical Operated Clutches (AREA)

Abstract

The invention concerns an assembly consisting of a clutch associated with an electrical machine (50), in particular for a motor vehicle provided with a flywheel: the flywheel is a double damping flywheel (10) comprising a primary flywheel (11) designed to be connected to the crankshaft (1) of the vehicle engine and a secondary flywheel (12) designed to receive the clutch mechanism (60) of the clutch system which includes a cover (61), clutching and declutching means (63) and a pressure plate (62), torsional damper means with circumferential action being kinematically arranged between the primary (11) and secondary (12) flywheels, the rotor (51) of the electrical machine (50) being borne by the primary flywheel (11), the secondary flywheel (12) comprising a plate (16) having a friction surface wherewith is adapted to co-operate at least a friction disc (70) lining (72) by the action of the clutching means (63) via the pressure plate (62).

Description

"Ensemble constitué d'un embrayage associé à une machine électrique, notamment pour véhicule automobile" "Assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle"
La présente invention concerne un embrayage associé à une machine électrique, notamment pour véhicule automobile. Un embrayage, notamment de véhicule automobile, comprend globalement un mécanisme d'embrayage constitué essentiellement d'un couvercle, d'un plateau de pression et de moyens embrayeurs destinés à serrer au moins une garniture de friction, portée par un disque de friction, entre le plateau de pression et un plateau de réaction appartenant à un volant calé en rotation sur le vilebrequin du moteur à combustion interne.The present invention relates to a clutch associated with an electric machine, in particular for a motor vehicle. A clutch, in particular for a motor vehicle, generally comprises a clutch mechanism essentially consisting of a cover, a pressure plate and engagement means intended to tighten at least one friction lining, carried by a friction disc, between the pressure plate and a reaction plate belonging to a flywheel stalled in rotation on the crankshaft of the internal combustion engine.
On a déjà proposé, notamment dans le document DE-C-3 227 810, un ensemble constitué d'un embrayage associé à une machine électrique dont le rotor est porté par le plateau de réaction, la machine électrique étant conformée pour constituer un alternateur et un démarreur pour le moteur d'un véhicule automobile. De manière générale, ledit ensemble se loge à l'intérieur d'un carter ou cloche d'embrayage.Proposals have already been made, in particular in document DE-C-3 227 810, for an assembly consisting of a clutch associated with an electric machine, the rotor of which is carried by the reaction plate, the electric machine being shaped to constitute an alternator and a starter for the engine of a motor vehicle. Generally, said assembly is housed inside a clutch housing or bell.
On a déjà proposé également de doter un véhicule automobile d'un volant du type double, ou double volant amortisseur, du genre comportant un volant primaire destiné à être relié au vilebrequin du moteur du véhicule et un volant secondaire destiné à recevoir le mécanisme d'embrayage ; des moyens amortisseurs de torsion à action circonférentielle sont disposés cinématiquement entre les volants primaire et secondaire ; comme on le sait, une telle disposition permet un excellent filtrage des oscillations de torsion générées par le moteur, particulièrement dans les bas régimes, avec pour conséquence une importante diminution des bruits, notamment dans la boîte de vitesses.It has also already been proposed to provide a motor vehicle with a flywheel of the double type, or double damping flywheel, of the type comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch ; circumferential action torsional damping means are kinematically disposed between the primary and secondary flywheels; as is known, such an arrangement allows excellent filtering of the torsional oscillations generated by the engine, particularly in low revs, with the consequence of a significant reduction in noise, in particular in the gearbox.
La présente invention a pour objet un ensemble constitué d'un embrayage associé à une machine électrique, notamment pour véhicule automobile dans lequel le volant est un double volant amortisseur, ledit ensemble permettant de mieux gommer les acyclismes, du type sinusoïdal, du moteur à combustion interne.The present invention relates to an assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle in which the steering wheel is a double damping flywheel, said assembly making it possible to better erase acyclisms, of the sinusoidal type, of the combustion engine. internal.
Selon l'invention, un ensemble constitué d'un embrayage associé à une machine électrique, notamment pour véhicule automobile équipé d'un volant, est caractérisé par le fait que le volant est un double volant amortisseur du genre comportant un volant primaire destiné à être relié au vilebrequin du moteur du véhicule et un volant secondaire destiné à recevoir le mécanisme d'embrayage de l'embrayage qui comprend un couvercle, des moyens embrayeurs- débrayeurs et un plateau de pression, des moyens amortisseurs de torsion à action circonférentielle étant disposés cinematiquement entre les volants primaire et secondaire, le rotor de la machine électrique étant porté par le volant primaire, le volant secondaire comportant un plateau ayant une face de friction avec laquelle est adaptée à coopérer au moins une garniture d'un disque de friction sous l'action des moyens embrayeurs par l'intermédiaire du plateau de pression.According to the invention, an assembly consisting of a clutch associated with an electric machine, in particular for a motor vehicle equipped with a steering wheel, is characterized in that the steering wheel is a double damping flywheel of the kind comprising a primary flywheel intended to be connected to the crankshaft of the vehicle engine and a secondary flywheel intended to receive the clutch clutch mechanism which comprises a cover, clutch-declutching means and a pressure plate, damping means for circumferential twist being kinematically disposed between the primary and secondary flywheels, the rotor of the electric machine being carried by the primary flywheel, the secondary flywheel comprising a plate having a friction face with which is adapted to cooperate at least one gasket a friction disc under the action of the engaging means via the pressure plate.
Grâce à cette disposition, l'inertie primaire, c'est-à-dire l'inertie du volant primaire augmentée de celle correspondant au rotor de la machine électrique, liée donc au vilebrequin du moteur du véhicule, gomme parfaitement les acyclismes du moteur. Avantageusement, le volant primaire présente un moyeu central par lequel il est relié au vilebrequin du moteur, et une jupe dite primaire d'orientation axiale à la périphérie externe de laquelle est solidarisé le rotor.Thanks to this arrangement, the primary inertia, that is to say the inertia of the primary flywheel increased by that corresponding to the rotor of the electric machine, therefore linked to the crankshaft of the vehicle engine, perfectly erases the acyclisms of the engine. Advantageously, the primary flywheel has a central hub by which it is connected to the crankshaft of the engine, and a so-called primary skirt of axial orientation at the external periphery of which the rotor is secured.
De préférence, le rotor est solidarisé à la jupe primaire par frettage. Avantageusement, le plateau du volant secondaire est muni à sa périphérie externe d'une jupe dite secondaire d'orientation axiale entourée par la jupe primaire.Preferably, the rotor is secured to the primary skirt by shrinking. Advantageously, the secondary flywheel plate is provided at its external periphery with a so-called secondary skirt of axial orientation surrounded by the primary skirt.
De préférence, les jupes primaire et secondaire s'étendent axialement dans le même sens.Preferably, the primary and secondary skirts extend axially in the same direction.
En variante, les jupes primaire et secondaire s'étendent axialement l'une vers l'autre.Alternatively, the primary and secondary skirts extend axially towards one another.
De préférence, l'ensemble ne comporte qu'un disque de friction. En variante, l'ensemble comporte deux disques de friction dont les garnitures coopèrent avec un plateau intermédiaire placé axialement entre les deux disques de friction et solidaire en rotation du volant secondaire. Avantageusement, la jupe primaire entoure le ou les disques de friction.Preferably, the assembly only comprises a friction disc. As a variant, the assembly comprises two friction discs, the linings of which cooperate with an intermediate plate placed axially between the two friction discs and integral in rotation with the secondary flywheel. Advantageously, the primary skirt surrounds the friction disc or discs.
En variante, le (ou les) disque(s) de friction est (sont) déporté(s) axialement par rapport à la jupe primaire. De préférence, les moyens amortisseurs de torsion comprennent des moyens élastiques à action circonférentielle et des moyens de frottement à action axiale.As a variant, the friction disc (s) is (are) offset axially relative to the primary skirt. Preferably, the torsion damping means comprise elastic means with circumferential action and friction means with axial action.
Avantageusement, les moyens élastiques sont constitués par une rangée de ressorts disposés circonferentiellement et prenant appui d'un côté sur le volant primaire et de l'autre côté sur le volant secondaire.Advantageously, the elastic means consist of a row of springs arranged circumferentially and bearing on one side on the primary flywheel and on the other side on the secondary flywheel.
En variante, les moyens élastiques sont constitués par deux rangées de ressorts disposés circonferentiellement et prenant appui d'un côté sur le volant primaire et de l'autre côté sur le volant secondaire. Avantageusement, les ressorts des deux rangées sont en parallèle.As a variant, the elastic means consist of two rows of springs arranged circumferentially and bearing on one side on the primary flywheel and on the other side on the secondary flywheel. Advantageously, the springs of the two rows are in parallel.
De préférence, les ressorts des deux rangées sont en série. Avantageusement, la jupe primaire entoure les ressorts. Selon une première forme de réalisation, les jupes primaire et secondaire s'étendent axialement dans le même sens, il y a deux disques de friction et deux rangées de ressorts entourées par la jupe primaire, laquelle entoure également le mécanisme d'embrayage dont le couvercle est fixé en bout de la jupe secondaire.Preferably, the springs of the two rows are in series. Advantageously, the primary skirt surrounds the springs. According to a first embodiment, the primary and secondary skirts extend axially in the same direction, there are two friction discs and two rows of springs surrounded by the primary skirt, which also surrounds the clutch mechanism including the cover. is attached to the end of the secondary skirt.
Avantageusement, le plateau du volant secondaire est muni à sa périphérie interne d'une collerette annulaire qui porte une couronne, un moyen de palier étant placé entre la périphérie interne de la couronne et la périphérie externe du moyeu central du volant primaire.Advantageously, the plate of the secondary flywheel is provided at its internal periphery with an annular flange which carries a crown, a bearing means being placed between the internal periphery of the crown and the external periphery of the central hub of the primary flywheel.
De préférence, la couronne porte un voile globalement transversal muni de fenêtres à sa périphérie dont le bord radial constitue un appui secondaire pour les moyens élastiques. Avantageusement, les appuis primaires des moyens élastiques, disposés par paires de part et d'autre du voile, sont constitués, d'un côté, par un patin d'appui porté par le volant primaire et, de l'autre côté, par un embouti réalisé dans le fond d'une coupe dont le bord cylindrique axial s'étend entre les jupes primaire et secondaire et porte un rebord transversal pour fixation de la coupe en bout de la jupe primaire.Preferably, the crown carries a generally transverse web provided with windows at its periphery, the radial edge of which constitutes secondary support for the elastic means. Advantageously, the primary supports of the elastic means, arranged in pairs on either side of the veil, are constituted, on one side, by a support pad carried by the primary flywheel and, on the other side, by a stamped formed in the bottom of a cut whose axial cylindrical edge extends between the primary and secondary skirts and carries a transverse rim for fixing the cut at the end of the primary skirt.
De préférence, la garniture d'un disque de friction est adaptée à être serrée entre le plateau du volant secondaire et un plateau intermédiaire tandis que celle de l'autre disque de friction est adapté à être serrée entre le plateau intermédiaire et le plateau de pression du mécanisme d'embrayage.Preferably, the lining of a friction disc is adapted to be clamped between the secondary flywheel plate and an intermediate plate while that that of the other friction disc is adapted to be clamped between the intermediate plate and the pressure plate of the clutch mechanism.
Avantageusement, la jupe secondaire présente des échancrures axiales, formant mortaises, dans lesquelles pénètrent des pattes radiales, formant tenons, du plateau intermédiaire.Advantageously, the secondary skirt has axial notches, forming mortises, into which penetrate radial tabs, forming tenons, of the intermediate plate.
Selon une autre forme de réalisation, l'ensemble ne comporte qu'un disque de friction et deux rangées de ressorts et le plateau du volant secondaire avec lequel coopère la garniture du disque de friction présente à sa périphérie interne une collerette en forme de moyeu et s'étend, depuis la collerette, transversalement au delà du rotor qu'il longe.According to another embodiment, the assembly only comprises a friction disc and two rows of springs and the secondary flywheel plate with which the lining of the friction disc cooperates has at its internal periphery a hub-shaped collar and extends, from the collar, transversely beyond the rotor which it runs along.
De préférence, la jupe primaire du volant primaire entoure les deux rangées de ressorts disposées axialement côte à côte.Preferably, the primary skirt of the primary flywheel surrounds the two rows of springs arranged axially side by side.
Avantageusement, le fond d'une coupe s'étend axialement entre les deux rangées de ressorts et porte des patins disposés dos à dos pour appui primaire des ressorts, le bord cylindrique axial de la coupe s'étendant le long de la périphérie interne de la jupe primaire et présentant un rebord transversal pour fixation de la coupe en bout de ladite jupe primaire.Advantageously, the bottom of a section extends axially between the two rows of springs and carries pads arranged back to back for primary support of the springs, the axial cylindrical edge of the section extending along the internal periphery of the primary skirt and having a transverse rim for fixing the cut at the end of said primary skirt.
De préférence, les autres appuis primaires des ressorts sont constitués par des patins d'appui portés, pour la rangée côté mécanisme d'embrayage, par un flasque d'appui solidarisé en bout de la jupe secondaire et, pour l'autre rangée, par le fond du volant primaire en forme de C.Preferably, the other primary supports of the springs are constituted by bearing pads, for the row on the clutch mechanism side, by a support flange secured to the end of the secondary skirt and, for the other row, by the bottom of the C-shaped primary steering wheel.
Avantageusement, la collerette est solidarisée une couronne, avec interposition axiale d'un voile, un moyen de palier étant placé entre la périphérie interne de la couronne et la périphérie externe du moyeu central du volant primaire.Advantageously, the collar is secured to a crown, with axial interposition of a veil, a bearing means being placed between the internal periphery of the crown and the external periphery of the central hub of the primary flywheel.
De préférence, les appuis secondaires pour les ressorts sont constituées par les bords radiaux d'échancrures ménagées, pour la rangée côté mécanisme d'embrayage, dans le voile et, pour l'autre rangée, dans un voile porté par la couronne. Avantageusement, les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement présentant une échancrure adaptée à recevoir une patte axiale du voile, ladite rondelle de frottement étant appliquée contre la face interne du fond du volant primaire en forme de C par une rondelle élastique en appui sur le moyeu central avec interposition d'une rondelle d'application.Preferably, the secondary supports for the springs are formed by the radial edges of indentations, for the row on the clutch mechanism side, in the web and, for the other row, in a web carried by the crown. Advantageously, the friction means of the torsion damping means comprise a friction washer having a notch adapted to receive an axial tab of the web, said friction washer being applied against the internal face of the bottom of the C-shaped primary flywheel by an elastic washer bearing on the central hub with the interposition of an application washer.
Selon encore une autre forme de réalisation, les jupes primaire et secondaire s'étendent axialement l'une vers l'autre, l'ensemble ne comporte qu'un disque de friction et deux rangées de ressorts et le moyeu central du volant primaire est solidaire de deux rondelles entretoises disposées axialement, un premier voile étant pincé entre le moyeu central et la première rondelle entretoise et un second voile étant pincé entre les deux rondelles entretoises, un moyen de palier étant placé entre le plateau du volant secondaire et la seconde rondelle entretoise.According to yet another embodiment, the primary and secondary skirts extend axially towards one another, the assembly only comprises a friction disc and two rows of springs and the central hub of the primary flywheel is integral two axially arranged spacer washers, a first web being pinched between the central hub and the first spacer washer and a second web being pinched between the two spacer washers, a bearing means being placed between the secondary flywheel plate and the second spacer washer .
Avantageusement, les appuis primaires des ressorts des deux rangées sont constitués par le bord radial d'échancrures ménagées à la périphérie des voiles et les appuis secondaires, disposés par paires de part et d'autre des voiles, sont réalisés, d'un côté, par des patins d'appui portés par le fond d'une coupe s'étendant entre les deux rangées de ressorts et prolongé par un bord cylindrique s'étendant à la périphérie interne de la jupe secondaire muni d'un rebord pour fixation de la coupe en bout de ladite jupe et, de l'autre côté, pour la rangée côté mécanisme d'embrayage (160), par des patins d'appui portés par le plateau et, pour l'autre rangée, par des emboutis d'un flasque d'appui fixé en bout de la jupe secondaire.Advantageously, the primary supports of the springs of the two rows are constituted by the radial edge of notches formed at the periphery of the sails and the secondary supports, arranged in pairs on either side of the sails, are produced, on one side, by support pads carried by the bottom of a cut extending between the two rows of springs and extended by a cylindrical edge extending at the internal periphery of the secondary skirt provided with a flange for fixing the cut at the end of said skirt and, on the other side, for the row on the clutch mechanism side (160), by support pads carried by the plate and, for the other row, by stampings on a flange support fixed at the end of the secondary skirt.
Avantageusement, les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement présentant une échancrure adaptée à recevoir une patte axiale issue du fond de la coupe, ladite rondelle de frottement étant appliquée contre la face en regard du premier voile par une rondelle élastique en appui sur la première rondelle entretoise avec interposition d'une rondelle d'application.Advantageously, the friction means of the torsion damping means comprise a friction washer having a notch adapted to receive an axial tab originating from the bottom of the section, said friction washer being applied against the opposite face of the first web by an elastic washer. resting on the first spacer washer with the interposition of an application washer.
De préférence, le plateau du volant secondaire avec lequel coopère la garniture du disque de friction s'étend transversalement au delà du rotor qu'il longe. Avantageusement, dans tous les cas, une butée de débrayage est prévue pour action sur les moyens débrayeurs associés aux moyens embrayeurs pour contrecarrer à volonté l'action des moyens embrayeurs, la butée de débrayage appartenant à un dispositif de débrayage du type concentrique destiné à être traversé par un arbre mené.Preferably, the secondary flywheel plate with which the lining of the friction disc cooperates extends transversely beyond the rotor which it runs along. Advantageously, in all cases, a declutching stop is provided for action on the declutching means associated with the clutching means to counteract at will the action of the clutching means, the declutching stop. belonging to a release device of the concentric type intended to be crossed by a driven shaft.
De préférence, le dispositif de débrayage comporte, d'une part, un piston portant la butée de débrayage monté mobile axialement par rapport à une partie fixe présentant une cavité annulaire borgne d'orientation axiale délimitée par le piston pour définir une chambre de travail à volume variable.Preferably, the declutching device comprises, on the one hand, a piston carrying the declutching stopper mounted axially movable relative to a fixed part having a blind annular cavity of axial orientation delimited by the piston to define a working chamber to variable volume.
Avantageusement, les moyens embrayeurs et débrayeurs appartiennent à un diaphragme comportant une partie périphérique en forme de rondelle Belleville, constituant les moyens embrayeurs, prolongée par une partie centrale constituant les moyens débrayeurs, ladite partie centrale étant fragmentée en doigts radiaux par des fentes borgnes, dont les fonds formant des orifices élargis à la périphérie interne de la partie périphérique.Advantageously, the engaging and declutching means belong to a diaphragm comprising a peripheral part in the form of a Belleville washer, constituting the engaging means, extended by a central part constituting the declutching means, said central part being fragmented into radial fingers by blind slots, of which the bottoms forming enlarged orifices at the internal periphery of the peripheral part.
Pour mieux faire comprendre l'objet de l'invention, on va en décrire maintenant, à titre d'exemple, purement illustratif et non limitatif, des modes de réalisation représentés sur les dessins annexés.To better understand the object of the invention, we will now describe, by way of example, purely illustrative and not limiting, embodiments shown in the accompanying drawings.
Sur ces dessins :In these drawings:
- la figure 1 est une vue en coupe d'un ensemble selon l'invention ;- Figure 1 is a sectional view of an assembly according to the invention;
- les figures 2 et 3 sont analogues à la figure 1 et représentent chacune une variante d'ensemble selon l'invention. En se reportant à la figure 1 , on voit qu'un ensemble selon l'invention comprend un double volant amortisseur 10, une machine électrique 50 et un mécanisme d'embrayage 60.- Figures 2 and 3 are similar to Figure 1 and each show an overall variant according to the invention. Referring to FIG. 1, it can be seen that an assembly according to the invention comprises a double damping flywheel 10, an electric machine 50 and a clutch mechanism 60.
Le double volant 10 comporte un volant primaire 11 et un volant secondaire 12. Le volant primaire 1 1 présente un moyeu central 13 par lequel il est relié, ici par des vis 14, au vilebrequin 1 du moteur du véhicule automobile ; le volant primaire 11 est de révolution, à section axiale en forme de C, et présente une jupe externe 15 dite primaire, de forme annulaire et d'orientation axiale.The double flywheel 10 comprises a primary flywheel 11 and a secondary flywheel 12. The primary flywheel 1 1 has a central hub 13 by which it is connected, here by screws 14, to the crankshaft 1 of the engine of the motor vehicle; the primary flywheel 11 is of revolution, of C-shaped axial section, and has an external skirt 15 called primary, of annular shape and of axial orientation.
Le volant secondaire 12 comporte un plateau 16 de forme annulaire d'orientation transversale muni à sa périphérie interne d'une collerette 17 annulaire et à sa périphérie externe d'une jupe 18 dite secondaire d'orientation axiale, l'extrémité libre axiale de la jupe secondaire 18 étant globalement à l'aplomb de celle de la jupe primaire 15, le volant primaire 11 et sa jupe primaire 15 entourant le volant secondaire 12.The secondary flywheel 12 comprises a plate 16 of annular shape of transverse orientation provided at its internal periphery with an annular flange 17 and at its external periphery with a skirt 18 called secondary axially oriented, the axial free end of the secondary skirt 18 being generally at vertical to that of the primary skirt 15, the primary flywheel 11 and its primary skirt 15 surrounding the secondary flywheel 12.
Le volant secondaire 12 est destiné à recevoir un mécanisme d'embrayage 60, de la manière décrite ci-dessous, et constitue un plateau de réaction adapté à coopérer avec un disque de friction associé au mécanisme d'embrayage 60. Le volant secondaire 12 est ainsi destiné à être lié en rotation de manière débrayable à l'arbre d'entrée 2 de la boîte de vitesses, via le mécanisme d'embrayage 60, formant un ensemble unitaire.The secondary flywheel 12 is intended to receive a clutch mechanism 60, as described below, and constitutes a reaction plate adapted to cooperate with a friction disc associated with the clutch mechanism 60. The secondary flywheel 12 is thus intended to be disengageably linked in rotation to the input shaft 2 of the gearbox, via the clutch mechanism 60, forming a unitary assembly.
Des moyens amortisseurs de torsion à action circonférentielle sont disposés cinematiquement entre les volants primaire 11 et secondaire 12 ; ces moyens amortisseurs de torsion comprennent des moyens élastiques à action circonférentielle et des moyens de frottement à action axiale.Circumferential action torsional damping means are arranged kinematically between the primary 11 and secondary 12 flywheels; these torsion damping means comprise elastic means with circumferential action and friction means with axial action.
La collerette interne 17 du volant secondaire 12 porte, appliquée sur sa face tournée vers le volant primaire 11 , une couronne 19 qui lui est assujettie par des vis 20. Un moyen de palier, ici un roulement à billes 21 , est placé entre la périphérie interne de la couronne 19 et la périphérie externe du moyeu central 13 du volant primaire 11 , les volants primaire 11 et secondaire 12 étant amenés à tourner l'un par rapport à l'autre.The internal flange 17 of the secondary flywheel 12 carries, applied on its face facing the primary flywheel 11, a crown 19 which is fixed to it by screws 20. A bearing means, here a ball bearing 21, is placed between the periphery internal of the crown 19 and the external periphery of the central hub 13 of the primary flywheel 11, the primary 11 and secondary 12 flywheels being caused to rotate relative to each other.
La portée cylindrique interne du chemin de roulement interne, appelé bague interne, du roulement 21 est usinée en bout du moyeu central 13, à la périphérie externe de celui-ci, en sorte qu'est définie une portée transversale 22 calant axialement d'un côté le chemin de roulement interne par rapport au moyeu central 13 ; de l'autre côté, celui-ci est calé par une rondelle 23 à trous pour le passage des vis 14 dont la tête applique la rondelle 23 sur le chemin de roulement interne et la face frontale du moyeu central 13 par rapport auquel ledit chemin de roulement interne est donc calé axialement dans les deux sens.The internal cylindrical bearing surface of the internal raceway, called the internal ring, of the bearing 21 is machined at the end of the central hub 13, at the external periphery of the latter, so that a transverse bearing surface 22 is set axially by a side of the internal raceway with respect to the central hub 13; on the other side, this is wedged by a washer 23 with holes for the passage of the screws 14, the head of which applies the washer 23 to the internal raceway and the front face of the central hub 13 with respect to which said raceway internal bearing is therefore locked axially in both directions.
Le volant primaire 1 1 avec sa jupe primaire 15 et son moyeu central 13 définit, en coopération avec le volant secondaire 12, la couronne 19 et le roulement 22, un volume annulaire 24 dans lequel sont placés les moyens amortisseurs de torsion.The primary flywheel 1 1 with its primary skirt 15 and its central hub 13 defines, in cooperation with the secondary flywheel 12, the crown 19 and the bearing 22, an annular volume 24 in which the torsion damping means are placed.
Les moyens élastiques sont des ressorts à boudin 25 ici du type concentrique s'étendant circonferentiellement en prenant appui d'un côté sur le volant primaire 11 et de l'autre côté sur le volant secondaire 12. Les appuis côté volant secondaire 12, dits appuis secondaires, sont constitués par un bord radial 26 d'une echancrure découpée à la périphérie externe d'un voile 27 globalement transversal. L'échancrure est ouverte vers l'extérieur. Le voile 27, ici métallique, est solidarisé par sa périphérie interne à la couronne 19, ici par des rivets 28 qui plaquent le voile 27 sur la face transversale de la couronne 19 tournée vers le volant primaire 11. Le voile 27 s'étend vers l'axe jusqu'au droit du chemin de roulement externe, appelé bague externe, du roulement 21 en sorte de le caler d'un côté axialement par rapport à la couronne 19 ; la portée cylindrique externe du chemin de roulement externe est usinée sur une fraction seulement de la périphérie interne de la couronne 19 en sorte qu'est définie une portée transversale 29 calant axialement de l'autre côté ce chemin de roulement externe par rapport à la couronne 19 : ainsi, ce chemin de roulement externe est calé des deux côtés par rapport à ladite couronne 19.The elastic means are coil springs 25 here of the concentric type extending circumferentially by bearing on one side on the primary flywheel 11 and on the other side on the secondary flywheel 12. The secondary flywheel side supports 12, called secondary supports, are constituted by a radial edge 26 of a notch cut out at the external periphery of a generally transverse web 27. The notch is open to the outside. The veil 27, here metallic, is secured by its internal periphery to the crown 19, here by rivets 28 which press the veil 27 on the transverse face of the crown 19 facing the primary flywheel 11. The veil 27 extends towards the axis to the right of the outer race, called the outer ring, of the bearing 21 so as to wedge it on one side axially with respect to the ring 19; the external cylindrical bearing surface of the external raceway is machined over only a fraction of the internal periphery of the crown 19 so that a transverse bearing surface 29 is defined axially wedging on the other side this external raceway relative to the crown 19: thus, this external raceway is wedged on both sides with respect to said ring 19.
Les appuis côté volant primaire 11 , dits appuis primaires, pour les ressorts 25 sont des paires d'appuis, les appuis de chaque paire étant disposés axialement de part et d'autre du voile 27 : l'un de ces appuis est constitué par la face radiale d'un patin d'appui 30 assujetti au volant primaire 11 par des rivets 31 ; l'autre appui est constitué par la face frontale d'un embouti 32 partiel réalisé dans le fond 34 d'une pièce en tôle en forme de coupe 33 ; le fond 34 est muni d'une ouverture 35 par laquelle il entoure la couronne 19 en étant au droit de celle-ci.The supports on the primary flywheel side 11, called primary supports, for the springs 25 are pairs of supports, the supports of each pair being arranged axially on either side of the web 27: one of these supports is constituted by the radial face of a support pad 30 secured to the primary flywheel 11 by rivets 31; the other support is constituted by the front face of a partial stamping 32 produced in the bottom 34 of a sheet metal part in the form of a cup 33; the bottom 34 is provided with an opening 35 through which it surrounds the crown 19 while being at the right of the latter.
Le fond 34 de la coupe 33 se prolonge selon un bord cylindrique axial 36, qui longe la jupe primaire, au contact de la périphérie interne de celle-ci dans laquelle il s'emboîte ; ce bord 36 se termine par un rebord transversal 37 plaqué contre la face transversale d'extrémité de la jupe primaire 15 par des vis 38 solidarisant la coupe 33 au volant primaire 1 1.The bottom 34 of the section 33 extends along an axial cylindrical edge 36, which runs along the primary skirt, in contact with the internal periphery of the latter in which it fits; this edge 36 ends with a transverse rim 37 pressed against the transverse end face of the primary skirt 15 by screws 38 securing the section 33 to the primary flywheel 11.
Les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement 40 entourant le moyeu central 13 du volant primaire 11 et présentant à sa périphérie au moins une echancrure 41 adaptée à recevoir avec ou sans jeu une patte axiale 39 issue de la périphérie interne du voile 27 par découpe et pliage de celle-ci. La rondelle de frottement 40 est appuyée contre la face interne du fond du volant primaire 1 1 en forme de C au moyen d'une rondelle élastique de serrage 42 à action axiale, classiquement une rondelle Belleville, par l'intermédiaire d'une rondelle d'application 43, la rondelle élastique 42 prenant appui sur un circlips 44 porté par le moyeu central 13.The friction means of the torsion damping means comprise a friction washer 40 surrounding the central hub 13 of the primary flywheel 11 and having at its periphery at least one notch 41 adapted to receive with or without play an axial tab 39 coming from the internal periphery veil 27 by cutting and folding thereof. The friction washer 40 is pressed against the internal face of the bottom of the primary flywheel 1 1 in the form of a C by means of an elastic clamping washer 42 with axial action, conventionally a Belleville washer, by means of an application washer 43, the elastic washer 42 resting on a circlip 44 carried by the central hub 13.
L'ensemble est logé à l'intérieur d'une cloche d'embrayage 3 fixe du véhicule automobile.The assembly is housed inside a fixed clutch bell 3 of the motor vehicle.
La machine électrique 50 est disposée autour du double volant 10 ; elle comporte un rotor 51 et un stator 52 coaxiaux, un entrefer 53 existant entre le rotor 51 et le stator 52 ; le rotor 51 comporte des aimants permanents et est porté par le volant primaire 11 , à la périphérie externe de la jupe primaire 15 à laquelle il est solidarisé par exemple par frettage. Le stator 52 est doté d'enroulements électriques 54 et est porté intérieurement par la cloche d'embrayage 3. Le mécanisme d'embrayage 60 comprend un couvercle 61 , un plateau de pression 62 et un diaphragme 63.The electric machine 50 is arranged around the double flywheel 10; it comprises a rotor 51 and a stator 52 coaxial, a gap 53 existing between the rotor 51 and the stator 52; the rotor 51 includes permanent magnets and is carried by the primary flywheel 11, at the external periphery of the primary skirt 15 to which it is secured, for example by shrinking. The stator 52 has electrical windings 54 and is carried internally by the clutch bell 3. The clutch mechanism 60 comprises a cover 61, a pressure plate 62 and a diaphragm 63.
Le couvercle 61 est métallique, ici en tôle emboutie ; il présente un fond 64, troué centralement, globalement d'orientation transversale, perpendiculaire à l'axe de l'ensemble, muni à sa périphérie externe d'un rebord annulaire 65 de fixation ; le couvercle 61 a ainsi globalement la forme d'une assiette plate.The cover 61 is metallic, here in stamped sheet metal; it has a bottom 64, perforated centrally, generally of transverse orientation, perpendicular to the axis of the assembly, provided at its outer periphery with an annular flange 65 for fixing; the cover 61 thus has the overall shape of a flat plate.
Un embrayage comporte des moyens embrayeurs associés à des moyens débrayeurs ; ceux-ci peuvent être des leviers de débrayage pouvant agir sur des ressorts hélicoïdaux à action axiale constituant les moyens embrayeurs ; selon une variante, les leviers de débrayage sont constitués par des doigts appartenant à la partie centrale d'une pièce dont la périphérie externe est élastique axialement ou dépourvue d'élasticité axiale, agissant sur une rondelle Belleville formant les moyens embrayeurs.A clutch comprises engaging means associated with declutching means; these can be declutching levers which can act on helical springs with axial action constituting the engagement means; alternatively, the release levers are constituted by fingers belonging to the central part of a part whose external periphery is axially elastic or devoid of axial elasticity, acting on a Belleville washer forming the engagement means.
Ici, les moyens embrayeurs et débrayeurs appartiennent à une même pièce, le diaphragme 63, qui comporte une partie périphérique en forme de rondelle Belleville prolongée intérieurement par une partie centrale fragmentée en doigts radiaux par des fentes borgnes débouchant intérieurement dans une ouverture centrale que présente le diaphragme 63 dont la forme, à l'état libre, est tronconique. Les fentes débouchent à leur périphérie externe dans des orifices élargis formant le fond des fentes.Here, the engagement and disengagement means belong to the same part, the diaphragm 63, which comprises a peripheral portion in the shape of a Belleville washer extended internally by a central portion fragmented into radial fingers by blind slots opening internally into a central opening which has the diaphragm 63 whose shape, in the free state, is tapered. The slots open at their outer periphery into enlarged orifices forming the bottom of the slots.
Les doigts du diaphragme 63 forment des leviers de débrayage et donc les moyens débrayeurs, tandis que la partie périphérique, en forme de rondelle Belleville, du diaphragme 63 constitue les moyens embrayeurs de l'embrayage, lesdits orifices étant implantés à la périphérie interne de la rondelle Belleville du diaphragme 63.The fingers of the diaphragm 63 form declutching levers and therefore the declutching means, while the peripheral part, in the form of a Belleville washer, of the diaphragm 63 constitutes the clutch engaging means, said orifices being located at the internal periphery of the Belleville washer of diaphragm 63.
Les moyens débrayeurs sont prévus pour contrecarrer à volonté l'action des moyens embrayeurs sous l'action d'une butée de débrayage 66 appartenant à un dispositif de débrayage 166 du type concentrique, pour réduire l'encombrement axial entre le fond de la cloche 3 et le mécanisme d'embrayageThe declutching means are provided to counteract at will the action of the clutching means under the action of a declutching stop 66 belonging to a declutching device 166 of the concentric type, in order to reduce the axial space requirement between the bottom of the bell 3 and the clutch mechanism
60.60.
En effet, la butée 66 peut être actionnée par une fourchette de débrayage montée pivotante, par exemple par l'intermédiaire d'une rotule, sur le fond de la cloche 3 constituant une partie fixe. Une telle disposition augmente l'encombrement axial à cause du débattement de la fourchette à prévoir.Indeed, the stop 66 can be actuated by a declutching fork pivotally mounted, for example by means of a ball joint, on the bottom of the bell 3 constituting a fixed part. Such an arrangement increases the axial size because of the travel of the fork to be provided.
Comme décrit dans le document US-A-5 141 091 , la butée de débrayage 66 peut appartenir à un dispositif de débrayage concentrique à commande par câble, cette butée étant alors montée sur une pièce menée mobile en translation et fixe en rotation, ladite pièce étant en relation de vis écrou avec une pièce menante fixe en translation et mobile en rotation. La pièce menante porte une poulie sur laquelle s'enroule le câble de commande. Pour plus de précisions, on se reportera au document US-A-5 141 091.As described in document US-A-5 141 091, the declutching stop 66 may belong to a concentric declutching device with cable control, this stop being then mounted on a driven part movable in translation and fixed in rotation, said part being in relation to screw nut with a driving part fixed in translation and movable in rotation. The driving part carries a pulley on which the control cable is wound. For more details, see document US-A-5 141 091.
En variante, la pièce menante est commandée par un moteur électrique transversal.Alternatively, the driving part is controlled by a transverse electric motor.
Ici, le dispositif de débrayage concentrique 166 est du type hydraulique et comporte deux parties en relation de cylindre piston, à savoir une partie fixe 167, délimitant une cavité annulaire borgne 168 d'orientation axiale, et un piston 169 monté mobile axialement par rapport à la partie fixe. Ce piston 169 porte la butée de débrayage 66 et pénètre dans la cavitéHere, the concentric declutching device 166 is of the hydraulic type and comprises two parts in relation to the piston cylinder, namely a fixed part 167, delimiting a blind annular cavity 168 of axial orientation, and a piston 169 mounted axially movable relative to the fixed part. This piston 169 carries the declutching stop 66 and enters the cavity
168 pour définir avec celle-ci une chambre de travail de volume variable, la cavité 168 communiquant par un canal 180 avec une conduite reliée à un maître cylindre actionnée par une pédale de débrayage ou un actionneur à moteur électrique commandé selon des programmes prédéterminés par un calculateur. La chambre de travail est donc admise à être pressurisée ou dépressurisée, le fluide de commande remplissant ladite chambre étant usuellement de l'huile. La partie fixe 167 peut être en une seule pièce en matière moulable. Ici, la partie fixe 167 comporte, pour réduction de l'encombrement radial, deux pièces coaxiales à savoir un corps extérieur entourant un tube-guide métallique plus long axialement que le corps extérieur. Le fond de la cavité 168 est délimité par un rebord transversal appartenant au tube-guide assemblé au corps extérieur à l'aide d'une pièce intermédiaire d'assemblage. Un joint d'étanchéité statique est prévu entre le corps extérieur et le tube-guide portant à son extrémité libre une butée pour limiter le déplacement du piston 169 lorsque le dispositif de débrayage 166 n'est pas monté sur la cloche 3. Le canal 180 communique avec une gorge en regard du rebord du tube-guide.168 to define therewith a working chamber of variable volume, the cavity 168 communicating through a channel 180 with a pipe connected to a master cylinder actuated by a clutch pedal or a motor actuator electric controlled according to predetermined programs by a computer. The working chamber is therefore allowed to be pressurized or depressurized, the control fluid filling said chamber usually being oil. The fixed part 167 can be in one piece of moldable material. Here, the fixed part 167 comprises, for reduction of the radial size, two coaxial parts, namely an external body surrounding a metal guide tube which is axially longer than the external body. The bottom of the cavity 168 is delimited by a transverse rim belonging to the guide tube assembled to the external body using an intermediate assembly part. A static seal is provided between the outer body and the guide tube carrying at its free end a stop to limit the displacement of the piston 169 when the declutching device 166 is not mounted on the bell 3. The channel 180 communicates with a groove opposite the edge of the guide tube.
Un ressort de précharge 171 agit entre le corps extérieur en matière moulable et la butée de débrayage 66 pour maintenir celle-ci en appui constant sur les moyens débrayeurs 63.A preload spring 171 acts between the external body of moldable material and the clutch release bearing 66 to maintain the latter in constant support on the declutching means 63.
La butée de débrayage 66 comporte un roulement à billes avec une bague tournante profilée pour contact ponctuel avec les extrémités internes des doigts du diaphragme 63 et une bague non tournante attelée axialement au piston 169, qui porte ainsi la butée 66.The declutching stop 66 comprises a ball bearing with a profiled rotating ring for punctual contact with the internal ends of the fingers of the diaphragm 63 and a non-rotating ring axially coupled to the piston 169, which thus carries the stop 66.
Ici, la bague extérieure du roulement est tournante, tandis que la bague intérieure du roulement est fixe en rotation et présente à sa périphérie interne un rebord radial en appui sur un épaulement avant du piston 169, ledit rebord étant plaqué sur ledit épaulement par une rondelle élastique à action axiale, ici en forme de rondelle Belleville, prenant appui sur le piston. La butée 66 a une forme de drapeau en sorte que la bague intérieure du roulement à billes est destinée à entourer l'extrémité avant de diamètre réduit du corps extérieur pour réduction de l'encombrement axial, sachant que le corps extérieur est destiné à être fixé sur le fond de la cloche 3, de manière directe, à l'aide d'oreilles, ou indirecte, à l'aide d'une semelle d'adaptation et d'un montage baïonnette.Here, the outer ring of the bearing is rotating, while the inner ring of the bearing is fixed in rotation and has at its internal periphery a radial flange bearing on a front shoulder of the piston 169, said flange being pressed against said shoulder by a washer. elastic with axial action, here in the form of a Belleville washer, bearing on the piston. The stop 66 has a flag shape so that the inner ring of the ball bearing is intended to surround the front end of reduced diameter of the outer body to reduce the axial bulk, knowing that the outer body is intended to be fixed on the bottom of the bell 3, directly, using ears, or indirectly, using an adapter sole and a bayonet mount.
Ici, le corps extérieur présente des oreilles de fixation et la butée 66 est du type autocentreuse car elle peut se déplacer radialement au contact de l'épaulement du piston sous le contrôle de la rondelle élastique à action axiale. Pour plus de précisions, on se reportera, par exemple, au document W098/14713 montrant l'assemblage du corps extérieur avec le tube-guide. Bien entendu, un soufflet de protection non référencé est prévu pour un bon coulissement du piston 169. Quoi qu'il en soit, le dispositif de débrayage 166 est du type concentrique car il est destiné à être traversé par l'arbre d'entrée de la boîte de vitesses 2. Le dispositif 166 entoure donc l'arbre 2.Here, the outer body has fixing lugs and the stop 66 is of the self-centering type because it can move radially in contact with the shoulder of the piston under the control of the elastic washer with axial action. For more details, reference is made, for example, to document WO98 / 14713 showing the assembly of the external body with the guide tube. Of course, a non-referenced protective bellows is provided for good sliding of the piston 169. Anyway, the declutching device 166 is of the concentric type because it is intended to be crossed by the input shaft of the gearbox 2. The device 166 therefore surrounds the shaft 2.
Le mécanisme d'embrayage 60 est ici associé à deux disques de friction 70. Les disques de friction 70 portent à leur périphérie externe au moins une garniture de friction 72 destinée à être serrée entre deux plateaux sous l'action des moyens embrayeurs 63.The clutch mechanism 60 is here associated with two friction discs 70. The friction discs 70 carry at their outer periphery at least one friction lining 72 intended to be clamped between two plates under the action of the engagement means 63.
Les disques de friction 70 présentent centralement un moyeu 71 cannelé intérieurement pour liaison en rotation avec l'arbre mené 2. La garniture de friction 72 est solidaire d'un support 73 accouplé de manière rigide ou élastique au moyeu 71.The friction discs 70 have a hub 71 internally grooved for connection in rotation with the driven shaft 2. The friction lining 72 is secured to a support 73 rigidly or resiliently coupled to the hub 71.
L'arbre 2 traverse donc le dispositif de débrayage 166 et les moyeux 71 des disques de friction 70. Usuellement, l'extrémité de l'arbre 2 est reçue dans un palier pilote porté par l'arbre de sortie 1 du moteur à combustion interne, à savoir, ici, le vilebrequin du moteur à combustion interne du véhicule. L'arbre 1 est donc un arbre menant.The shaft 2 therefore passes through the declutching device 166 and the hubs 71 of the friction discs 70. Usually, the end of the shaft 2 is received in a pilot bearing carried by the output shaft 1 of the internal combustion engine , namely, here, the crankshaft of the internal combustion engine of the vehicle. Tree 1 is therefore a leading tree.
Le support 73 peut être noyé dans la garniture 72. Ici, deux garnitures 72 identiques sont disposées axialement de part et d'autre du support 73 axialement élastique, en étant fixées à celui-ci par collage ; ceci permet de réduire l'encombrement axial, l'épaisseur morte des garnitures 72 destinée à l'opération de rivetage étant supprimée, lorsque, en variante, les garnitures 72 sont fixées au support 73 par rivetage, le support 73 étant conformé à sa périphérie externe pour être axialement élastique et écrasé progressivement. Ici, par exemple, les garnitures de friction 72 peuvent être collées directement dans les zones centrales de portée des pales tripodes décrites dans le document FR-The support 73 can be embedded in the lining 72. Here, two identical linings 72 are arranged axially on either side of the support 73 axially elastic, by being fixed thereto by gluing; this makes it possible to reduce the axial size, the dead thickness of the linings 72 intended for the riveting operation being eliminated, when, as a variant, the linings 72 are fixed to the support 73 by riveting, the support 73 being shaped at its periphery external to be axially elastic and progressively crushed. Here, for example, the friction linings 72 can be glued directly into the central bearing areas of the tripod blades described in the document FR-
A-2 693 778 auquel on pourra se reporter pour plus de précisions.A-2 693 778 to which reference may be made for further details.
La garniture 72 d'un disque de friction 70 est adaptée à être serrée entre le plateau 16 du volant secondaire 12 et un plateau intermédiaire 67 tandis que celle de l'autre disque de friction 70 est adaptée à être serrée entre le plateau intermédiaire 67 et le plateau de pression 62 du mécanisme d'embrayage 60.The lining 72 of a friction disc 70 is adapted to be clamped between the plate 16 of the secondary flywheel 12 and an intermediate plate 67 while that of the other friction disc 70 is adapted to be clamped between the intermediate plate 67 and the pressure plate 62 of the clutch mechanism 60.
Les disque de friction 70, le plateau intermédiaire 67 et le mécanisme d'embrayage 60 sont logés à l'intérieur de la coupe 33, et donc de la jupe primaire 15.The friction discs 70, the intermediate plate 67 and the clutch mechanism 60 are housed inside the cup 33, and therefore of the primary skirt 15.
Le couvercle 61 est fixé par sa périphérie externe en extrémité de la jupe secondaire 18, ici par des vis 68.The cover 61 is fixed by its external periphery at the end of the secondary skirt 18, here by screws 68.
Le plateau de pression 62 présente un bossage annulaire 69 d'orientation axiale dirigé vers le fond 64 du couvercle 61 pour contact avec la périphérie externe de la rondelle Belleville du diaphragme 63 ; ce bossage 69 est fractionné et venu de moulage avec le plateau de pression 62.The pressure plate 62 has an annular boss 69 of axial orientation directed towards the bottom 64 of the cover 61 for contact with the external periphery of the Belleville washer of the diaphragm 63; this boss 69 is split and molded with the pressure plate 62.
La périphérie interne de la rondelle Belleville du diaphragme 63 est montée de manière basculante ou pivotante entre un appui primaire issu ici du fond 64 du couvercle 61 par emboutissage et un appui secondaire ici élastique constitué par une rondelle de forme tronconique assujettie au couvercle 61 par des pattes issues par découpe et pliage du fond 64 du couvercle 61. Les pattes traversent axialement les orifices élargis du diaphragme 63 et sont repliées à leur extrémité libre radialement vers l'extérieur pour formation d'un coude de calage pour la rondelle. La jupe secondaire 18 présente des échancrures axiales 74 formant mortaises. Dans ces échancrures 74 pénètrent, à coulissement axial, des pattes radiales 75 saillantes, formant tenons, issues de la périphérie externe du plateau intermédiaire 67 ; celui-ci est donc lié en rotation au volant secondaire 12 par une liaison du type tenons-mortaises autorisant un déplacement axial du plateau intermédiaire 67 par rapport au volant secondaire 12.The internal periphery of the Belleville washer of the diaphragm 63 is pivotally or pivotally mounted between a primary support here from the bottom 64 of the cover 61 by stamping and a secondary support here elastic formed by a tapered washer secured to the cover 61 by tabs from cutting and folding of the bottom 64 of the cover 61. The tabs pass axially through the enlarged orifices of the diaphragm 63 and are folded at their free end radially outwards to form a wedge bend for the washer. The secondary skirt 18 has axial notches 74 forming mortises. In these notches 74 penetrate, axially sliding, projecting radial legs 75, forming tenons, from the outer periphery of the intermediate plate 67; the latter is therefore linked in rotation to the secondary flywheel 12 by a link of the tenon-mortise type allowing an axial displacement of the intermediate plate 67 relative to the secondary flywheel 12.
Le plateau de pression 62 pourrait être lié en rotation au volant secondaire 12 de la même façon, avec des pattes saillantes radialement engagées dans les échancrures 74 ; ici, il est lié en rotation au couvercle 61 par des languettes tangentielles 76 élastiques à action axiale autorisant un mouvement axial du plateau de pression 62 par rapport au couvercle 61 lui- même lié au volant secondaire 12 ; les languettes 76 sont liées au couvercle 61 par des rivets 77 et à des pattes saillantes radiales du plateau de pression 62 également par des rivets 78. Ainsi qu'on l'aura compris, les languettes 76 exercent une action élastique de rappel du plateau de pression 62 en direction du fond 64 du couvercle 61 et le plateau de pression 62 présente frontalement une face de friction pour contact avec la garniture concernée 72 du disque de friction 70, tandis que le plateau de pression intermédiaire 67 présente frontalement et dorsalement une face de friction pour contact avec les garnitures de friction 72 respectivement du disque 70 adjacent au volant secondaire 12 et du disque 70 adjacent au plateau de pression 62.The pressure plate 62 could be linked in rotation to the secondary flywheel 12 in the same way, with projecting lugs radially engaged in the notches 74; here, it is linked in rotation to the cover 61 by tangential tongues 76 with axial action allowing axial movement of the pressure plate 62 relative to the cover 61 itself linked to the secondary flywheel 12; the tongues 76 are linked to the cover 61 by rivets 77 and to radial projecting lugs of the pressure plate 62 also by rivets 78. As will be understood, the tongues 76 exert an elastic return action of the pressure plate 62 in the direction of the bottom 64 of the cover 61 and the pressure plate 62 has a friction face for contact with the lining concerned 72 of the friction disc 70, while the intermediate pressure plate 67 has frontly and dorsally a friction face for contact with the friction linings 72 respectively of the disc 70 adjacent to the secondary flywheel 12 and of the disc 70 adjacent to the pressure plate 62.
Normalement, l'embrayage est donc engagé et le couple moteur est transmis de l'arbre menant 1 à l'arbre mené 2 via l'embrayage bidisque.Normally, the clutch is engaged and the engine torque is transmitted from the driving shaft 1 to the driven shaft 2 via the two-clutch clutch.
Dans cette position, la rondelle Belleville du diaphragme 63, c'est-à-dire les moyens embrayeurs de l'embrayage, est en contact, d'une part, à sa périphérie interne avec l'appui primaire, et, d'autre part, à sa périphérie externe avec le bossage 69 du plateau de pression 62. Le diaphragme 63 sollicite donc le plateau de pression 62 en direction du plateau 16 du volant secondaire 12 en sorte que les garnitures de friction 72 des disques de friction 70 sont serrées entre les plateaux de pression 62 et du volant secondaire 12.In this position, the Belleville washer of the diaphragm 63, that is to say the clutch engagement means, is in contact, on the one hand, at its internal periphery with the primary support, and, on the other share, at its outer periphery with the boss 69 of the pressure plate 62. The diaphragm 63 therefore urges the pressure plate 62 towards the plate 16 of the secondary flywheel 12 so that the friction linings 72 of the friction discs 70 are tight between the pressure plates 62 and the secondary flywheel 12.
Les disques de friction 70 sont donc entraînés en rotation en sorte que les moyeux 71 , accouplés avec les garnitures 72, entraînent en rotation l'arbre mené 2.The friction discs 70 are therefore rotated so that the hubs 71, coupled with the linings 72, rotate the driven shaft 2.
Dans cette position, le piston 169 du dispositif de débrayage 166 est en position reculée, partie supérieure de la figure 1 , et la cavité 168 est dépressurisée. Lorsque l'on pressurise la cavité 168, le piston 169 se déplace vers la gauche, partie inférieure de la figure 1 , et entraîne donc la butée de débrayage 66, qui agit alors en poussant sur les doigts du diaphragme 63, pour faire pivoter celui-ci.In this position, the piston 169 of the declutching device 166 is in the retracted position, upper part of FIG. 1, and the cavity 168 is depressurized. When the cavity 168 is pressurized, the piston 169 moves to the left, lower part of FIG. 1, and therefore drives the clutch release bearing 66, which then acts by pushing on the fingers of the diaphragm 63, to rotate the one -this.
Le diaphragme 63 quitte alors son appui primaire pour prendre appui sur son appui secondaire. Dans ce cas, la charge exercée par le diaphragme 63 sur le plateau de pression 62 diminue puis s'annule, le plateau de pression 62 suivant alors le mouvement du diaphragme 63 sous l'action de rappel des languettes 76. Les garnitures de friction 72 sont alors libérées et l'embrayage désengagé. Le couple moteur n'est alors pas transmis. Lorsque l'on dépressurise la cavité 168, le diaphragme 63 ramène le piston 169 en arrière et les garnitures 72 sont serrées.The diaphragm 63 then leaves its primary support to take support on its secondary support. In this case, the load exerted by the diaphragm 63 on the pressure plate 62 decreases and then vanishes, the pressure plate 62 then following the movement of the diaphragm 63 under the return action of the tongues 76. The friction linings 72 are then released and the clutch disengaged. The engine torque is then not transmitted. When the cavity 168 is depressurized, the diaphragm 63 brings the piston 169 back and the linings 72 are tight.
Comme connu en soi, lorsque les volants primaire 1 1 et secondaire 12 ont un mouvement de rotation l'un par rapport à l'autre, l'action des moyens de frottement 40 accompagne celle des moyens élastiques 25.As known per se, when the primary 1 1 and secondary 12 flywheels have a rotational movement with respect to each other, the action of the friction means 40 accompanies that of the elastic means 25.
Un joint d'étanchéité annulaire 46 est disposé, sous les ressorts 25, entre la face interne du plateau du volant primaire 11 et le voile 27, ainsi qu'entre la couronne 19 et le bord de l'ouverture centrale 35 ménagée dans le fond 34 de la coupe 33, ce second joint 47 étant en forme de rondelle élastique. Ainsi, les ressorts 25 sont dans un volume annulaire étanche qui peut contenir de la graisse de lubrification. Les ressorts 25 ont ici une forme courbe en étant précintrés et des pièces en forme de goulotte (non référencées) sont interposées ici entre les ressorts 25 et la périphérie interne de la jupe 15 pour réduire les usures. On appréciera que, comme cela est représenté, les parois latérales en regard de ce volume, définies par le plateau du volant primaire 11 et le fond 34 de la coupe 33 ont une forme semi-torique adaptée au contour des ressorts 25 ce qui conduit à un encombrement de l'ensemble réduit axialement.An annular seal 46 is disposed, under the springs 25, between the internal face of the plate of the primary flywheel 11 and the web 27, as well as between the crown 19 and the edge of the central opening 35 formed in the bottom. 34 of section 33, this second seal 47 being in the form of an elastic washer. Thus, the springs 25 are in a sealed annular volume which may contain lubricating grease. The springs 25 have here a curved shape by being pre-bent and pieces in the form of a chute (not referenced) are interposed here between the springs 25 and the internal periphery of the skirt 15 to reduce wear. It will be appreciated that, as shown, the side walls facing this volume, defined by the plate of the primary flywheel 11 and the bottom 34 of the cup 33 have a semi-toric shape adapted to the contour of the springs 25 which leads to overall dimensions of the assembly reduced axially.
Le rotor 51 a une grande étendue axiale et il en est de même du stator 52. La machine 50 a ainsi un bon rendement. Le rotor 51 comporte un paquet de tôles, en fer doux, monté par frettage sur la périphérie externe de la jupe primaire 15 présentant à son extrémité libre une collerette 45 saillante radialement formant une butée pour le rotor 51. On monte donc à chaud le paquet de tôles par emmanchement sur la périphérie externe de la jupe primaire 15 jusqu'au contact avec la collerette 45. Les tôles de forme annulaire forment ainsi une couronne d'orientation axiale montée par frettage sur la jupe primaire 15.The rotor 51 has a large axial extent and it is the same for the stator 52. The machine 50 thus has a good efficiency. The rotor 51 comprises a package of sheets, made of soft iron, mounted by hooping on the external periphery of the primary skirt 15 having at its free end a flange 45 projecting radially forming a stop for the rotor 51. The package is therefore mounted hot of sheets by fitting on the external periphery of the primary skirt 15 until contact with the collar 45. The sheets of annular shape thus form an axially oriented crown mounted by hooping on the primary skirt 15.
Les tôles peuvent être isolées par oxydation ou munies d'isolants.The sheets can be isolated by oxidation or provided with insulators.
Le stator 52 est formé, de manière similaire au rotor 51 , à partir d'un paquet de tôles annulaires, en fer doux, reconstituant une couronne d'orientation axiale. Des encoches sont réalisées dans les tôles pour passage d'enroulements de fils électriques 54, le rotor 51 et le stator 52 étant représentés de manière schématique. En injectant un courant électrique asservi dans les enroulements statoriques, on transforme la machine électrique 50 en démarreur pour le moteur à combustion interne du véhicule.The stator 52 is formed, similar to the rotor 51, from a package of annular sheets, made of soft iron, reconstituting a crown of axial orientation. Notches are made in the sheets for passage of windings of electric wires 54, the rotor 51 and the stator 52 being shown schematically. By injecting a controlled electric current into the stator windings, the electric machine 50 is transformed into a starter for the internal combustion engine of the vehicle.
Pour cela, il faut prévoir un dispositif de commande du type électronique. La machine est ici du type moteur électrique asynchrone. Bien entendu, la machine électrique peut être du type moteur électrique synchrone ou autre.For this, it is necessary to provide a control device of the electronic type. The machine is here of the asynchronous electric motor type. Of course, the electric machine can be of the synchronous electric motor or other type.
En général, lorsque le moteur tourne, la machine joue le rôle d'un alternateur. On peut couper le moteur à combustion interne à chaque arrêt et le redémarrer grâce à la machine. La machine peut constituer un frein électrique et apporter un surplus d'énergie au moteur à combustion interne pour l'assister ou éviter que celui-ci ne cale ; on peut également filtrer les vibrations.In general, when the engine is running, the machine acts as an alternator. The internal combustion engine can be shut down at each stop and restarted using the machine. The machine can constitute an electric brake and provide a surplus of energy to the internal combustion engine to assist it or prevent it from stalling; we can also filter vibrations.
Pour plus de précisions, on se reportera au document W098/105882. En variante, on fixe le rotor 51 sur la périphérie externe de la jupe primaire 15 à l'aide de cannelures ou par emmanchement par cônes. Dans tous les cas, le rotor 51 est solidaire tant en rotation qu'axialement du volant primaireFor more details, see document W098 / 105882. As a variant, the rotor 51 is fixed to the external periphery of the primary skirt 15 using grooves or by fitting with cones. In all cases, the rotor 51 is integral both in rotation and axially with the primary flywheel
11.11.
Bien entendu, on peut fixer le rotor 51 sur la jupe primaire 15 à l'aide de vis prenant appui sur une rondelle de fixation, traversant le paquet de tôles de manière similaire à ce qui est décrit dans le document DE-C- 3 227 810. On peut utiliser aussi des éléments élastiques.Of course, the rotor 51 can be fixed on the primary skirt 15 using screws bearing on a fixing washer, passing through the sheet pack in a similar manner to that described in document DE-C-3 227 810. Elastic elements can also be used.
Le stator 52 est fixé ici par frettage à sa périphérie externe sur la cloche. Toute autre forme de fixation comme le vissage est envisageable.The stator 52 is fixed here by hooping at its outer periphery on the bell. Any other form of fixing such as screwing is possible.
On appréciera que le mode de fixation par frettage favorise la réduction de l'encombrement radial. Ici, l'ensemble présente toutes les fonctions de confort désirées, tout en étant peu encombrant radialement et ayant de bonnes performances.It will be appreciated that the method of fixing by shrinking favors the reduction of the radial bulk. Here, the assembly has all the desired comfort functions, while being compact radially and having good performance.
Ici, les ressorts 25 agissent circonferentiellement entre les deux volants 11 , 12 ; en variante, les ressorts peuvent agir radialement pour la position de repos entre les deux volants comme décrit dans la revue SAE 950 893, les ressorts appartenant à des cassettes.Here, the springs 25 act circumferentially between the two flywheels 11, 12; alternatively, the springs can act radially for the rest position between the two flywheels as described in the review SAE 950 893, the springs belonging to cassettes.
Bien entendu, l'embrayage peut être équipé d'un dispositif de rattrapage d'usure pour compenser notamment l'usure des garnitures de friction et maintenir le diaphragme dans une position constante lorsque l'embrayage est engagé.Of course, the clutch can be equipped with a wear take-up device in particular to compensate for the wear of the friction linings and keep the diaphragm in a constant position when the clutch is engaged.
Dans la figure 1 , l'embrayage est du type poussé car la butée 66 agit en poussant centralement sur le diaphragme 63. En variante, l'embrayage est du type tiré. Dans ce cas, la butée est attelée à une pièce d'accostage agissant derrière le diaphragme et traversant l'ouverture centrale du diaphragme.In FIG. 1, the clutch is of the pushed type because the stop 66 acts by pushing centrally on the diaphragm 63. As a variant, the clutch is of the pulled type. In this case, the stop is coupled to a docking part acting behind the diaphragm and passing through the central opening of the diaphragm.
L'opération de débrayage est réalisée en tirant, via une pièce d'accostage, sur les doigts du diaphragme.The declutching operation is carried out by pulling, via a docking piece, on the fingers of the diaphragm.
Dans ce cas, la partie périphérique de la rondelle Belleville du diaphragme est en contact, à sa périphérie externe, avec un appui porté par le couvercle et sa périphérie interne avec le bossage du plateau de pression. Pour plus de précisions, on se reportera, par exemple, au document FR-A-2 606 477 montrant également un dispositif de rattrapage d'usure. Il en résulte que le bossage 69 de plateau de pression 62 peut être mobile par rapport au plateau de pression 62 pour compenser l'usure des garnitures de friction, des ressorts à action circonférentielle agissant entre le plateau de pression 62 et le bossage 69, des moyens à rampes faisant varier la distance axiale entre le bossage 69 et le plateau de pression 62.In this case, the peripheral part of the Belleville washer of the diaphragm is in contact, at its external periphery, with a support carried by the cover and its internal periphery with the boss of the pressure plate. For more details, reference is made, for example, to document FR-A-2 606 477 also showing a device for taking up wear. As a result, the boss 69 of the pressure plate 62 can be movable relative to the pressure plate 62 to compensate for the wear of the friction linings, circumferentially acting springs acting between the pressure plate 62 and the boss 69, ramp means varying the axial distance between the boss 69 and the pressure plate 62.
Le couvercle 63 peut être dépourvu de rebord et présenter un fond globalement d'orientation transversale, prolongée par une douille annulaire d'orientation axiale en contact intime avec la périphérie interne de la jupe secondaire 18. On fixe alors la douille sur la jupe, par exemple par des vis ou tout autre moyen. Le couvercle 61 peut être prolongé à sa périphérie externe pour formation d'une cible d'allumage. Bien entendu, on peut prévoir plus de deux disques de friction pour diminuer encore l'encombrement radial.The cover 63 may have no rim and have a generally transverse orientation bottom, extended by an annular bush of axial orientation in intimate contact with the internal periphery of the secondary skirt 18. The bush is then fixed on the skirt, by example by screws or any other means. The cover 61 can be extended at its outer periphery to form an ignition target. Of course, one can provide more than two friction discs to further reduce the radial size.
Dans ce cas, plusieurs plateaux de pression intermédiaires sont prévus. Le rotor peut être plus court axialement.In this case, several intermediate pressure plates are provided. The rotor may be shorter axially.
Le rotor 51 comme visible à la figure 1 peut être doté d'une cage d'écureuil avec des pièces en cuivre ou en aluminium.The rotor 51 as visible in FIG. 1 can be provided with a squirrel cage with copper or aluminum parts.
La jupe secondaire est venue de moulage avec le plateau 16 du volant secondaire 12. En variante, elle est rapportée sur ledit plateau, par exemple par des vis. Des inserts métalliques peuvent être logés dans les volants pour renforcer ceux-ci. Par exemple, les inserts, en section, ont une forme d'equerre logée en partie dans le plateau et en partie dans la jupe.The secondary skirt is molded with the plate 16 of the secondary flywheel 12. As a variant, it is attached to said plate, for example by screws. Metal inserts can be housed in the steering wheels to reinforce them. For example, the inserts, in section, have a square shape housed partly in the plate and partly in the skirt.
En variante, les inserts sont d'orientation axiale, comme décrit dans le document FR-A-2 718 806 auquel on se reportera pour plus de précisions. Les inserts dans le volant secondaire 12 peuvent servir à fixer le couvercle 61. Ces inserts peuvent dépasser du volant secondaire et former des cibles respectivement pour la machine électrique et l'allumage du moteur.As a variant, the inserts are of axial orientation, as described in document FR-A-2 718 806 to which reference will be made for more details. The inserts in the secondary flywheel 12 can be used to fix the cover 61. These inserts can protrude from the secondary flywheel and form targets respectively for the electric machine and the engine ignition.
Bien entendu, la butée 45 peut être remplacée par des inserts noyés dans la jupe primaire 15, les inserts ayant un rebord plié radialement vers l'extérieur pour former la butée.Of course, the stop 45 can be replaced by inserts embedded in the primary skirt 15, the inserts having a rim folded radially outward to form the stop.
La machine 50 peut servir à synchroniser la vitesse des arbres 1 et 2 pour faciliter le passage des vitesses. Il est dans ce cas intéressant que la butée 66 soit manoeuvrée par un récepteur dont l'émetteur est manoeuvré par un actionneur piloté par un calculateur recevant les informations provenant de capteurs recevant la vitesse des arbres 1 et 2.The machine 50 can be used to synchronize the speed of the shafts 1 and 2 to facilitate the change of gears. In this case, it is advantageous for the stop 66 to be operated by a receiver, the transmitter of which is operated by an actuator controlled by a computer receiving the information coming from sensors receiving the speed of the shafts 1 and 2.
Bien entendu tout type de machines électriques, à flux magnétique axial ou radial peut convenir. La machine 50 peut être du type asynchrone, de manière précitée, synchrone à aimant dans l'entrefer ou enterré, à commutation de flux à aimants seuls ou hybrides avec des excitations par des bobinages au stator, à griffes sans balais, à réluctance variable, à simple ou double excitation, à flux transversal à effet Vernier.Of course any type of electric machine, with axial or radial magnetic flux may be suitable. The machine 50 can be of the asynchronous type, as mentioned above, synchronous with magnet in the air gap or buried, with flux switching with single or hybrid magnets with excitations by stator windings, with brushless claws, with variable reluctance, single or double excitation, cross flow with Vernier effect.
La machine électrique peut être du type synchrone avec un système bague-balais. La figure 2 représente une variante d'ensemble selon l'invention ; sur cette figure, les pièces identiques à celles de la figure 1 ou jouant le même rôle, portent une référence identique ou augmentée de cent et ne seront donc pas décrites à nouveau en détails.The electric machine can be of the synchronous type with a brush-ring system. FIG. 2 represents an overall variant according to the invention; in this figure, the parts identical to those of FIG. 1 or playing the same role, bear an identical reference or increased by one hundred and will therefore not be described again in detail.
Ici, le double volant amortisseur 100 comprend des moyens élastiques constitués de deux rangées de ressorts disposées côte à côte axialement et l'embrayage ne comprend qu'un disque de friction. Chaque rangée de ressorts 25 est formée ici de ressorts concentriques. Plus précisément, la jupe primaire 115 du volant primaire 1 11 entoure les deux rangées de ressorts 25 disposées côte à côte axialement ; les ressorts 25 des deux rangées sont cinematiquement attelés en parallèle. Pour ce faire, le fond 134 de la coupe 133 porte des patins d'appui 130 disposés dos à dos ; un voile 127A supplémentaire coopère, ici par l'intermédiaire d'échancrures ouvertes vers l'extérieur comme à la figure 1 , avec les ressorts 25 de la rangée disposée du côté du mécanisme d'embrayage 160 ; ces mêmes ressorts 25 coopèrent également avec des patins d'appui 130, placés en regard des patins 130 portés par le fond 134 de la coupe 133 et solidaires d'un flasque d'appui 134A. Du côté volant primaire 111 , il est prévu un voile 127 comme à la figure 1.Here, the double damping flywheel 100 comprises elastic means consisting of two rows of springs arranged side by side axially and the clutch comprises only a friction disc. Each row of springs 25 is here formed of concentric springs. More specifically, the primary skirt 115 of the primary flywheel 11 surrounds the two rows of springs 25 arranged side by side axially; the springs 25 of the two rows are kinematically coupled in parallel. To do this, the bottom 134 of the section 133 carries support pads 130 arranged back to back; an additional web 127A cooperates, here by means of notches open towards the outside as in FIG. 1, with the springs 25 of the row arranged on the side of the clutch mechanism 160; these same springs 25 also cooperate with support pads 130, placed opposite the pads 130 carried by the bottom 134 of the cup 133 and secured to a support flange 134A. On the primary flywheel side 111, a veil 127 is provided as in FIG. 1.
Le voile 127A est disposé axialement entre la couronne 119 et la collerette 117, ici en forme de moyeu, du volant secondaire 112 en étant fixé par les vis 120 qui solidarisent, par sa collerette 117, le volant secondaire 112 à la couronne 123. Ici, la couronne 119 porte un manchon 119A dirigé vers le mécanisme d'embrayage 160, de diamètre inférieur à celui de la couronne 119, pour centrage du voile 127A et de la collerette 117 du volant secondaire 112. Le manchon 119A constitue également une butée axiale pour le chemin de roulement externe du roulement 121.The veil 127A is disposed axially between the crown 119 and the flange 117, here in the form of a hub, of the secondary flywheel 112 by being fixed by the screws 120 which secure, by its flange 117, the secondary flywheel 112 to the crown 123. Here , the crown 119 carries a sleeve 119A directed towards the clutch mechanism 160, of diameter smaller than that of the crown 119, for centering the web 127A and the flange 117 of the secondary flywheel 112. The sleeve 119A also constitutes an axial stop for the external raceway of bearing 121.
Le flasque d'appui 134A est fixé en bout de la jupe primaire 1 15 par les mêmes vis qui fixent par son rebord 137 la coupe 133 à la jupe primaire 115 ; le flasque d'appui 134A dépasse radialement la périphérie externe de la jupe primaire 115 pour constituer une butée axiale pour le rotor 151 de la machineThe support flange 134A is fixed at the end of the primary skirt 1 15 by the same screws which fix by its rim 137 the section 133 to the primary skirt 115; the support flange 134A extends radially beyond the external periphery of the primary skirt 115 to constitute an axial stop for the rotor 151 of the machine
150 monté par exemple par frettage à la périphérie de ladite jupe primaire 115.150 mounted for example by hooping on the periphery of said primary skirt 115.
Ainsi les ressorts 25 des deux rangées de ressorts sont en appui, d'un côté, sur le volant primaire 1 1 1 par l'intermédiaire des patins d'appui 130 et, de l'autre côté, sur le volant secondaire 112 par l'intermédiaire des voiles 127 etThus the springs 25 of the two rows of springs bear, on one side, on the primary flywheel 1 1 1 via the support pads 130 and, on the other side, on the secondary flywheel 112 by l intermediate sails 127 and
127A, sachant que le fond 134 sert de support à deux séries de patins 130 disposées de part et d'autre du fond 134.127A, knowing that the bottom 134 serves as a support for two series of pads 130 arranged on either side of the bottom 134.
Ici, la rondelle 123 est de grande épaisseur et solidarisée au moyeu central 113 du volant primaire 111 pour constitution d'un premier sous-ensemble comportant notamment le volant primaire 111 portant les ressorts 25, la coupe 133, le plateau d'appui 134A, le roulement 121 , le rotor 151 et la rondelle 123. Le plateau 116 du volant secondaire 1 12, avec lequel coopère la garniture du disque de friction 170, s'étend radialement, depuis sa collerette 117 en forme de moyeu, au delà du rotor 151 en longeant le flasque d'appui 137A et le rotor 151 , sa face tournée vers le volant primaire 111 épousant les formes de ceux-ci.Here, the washer 123 is very thick and secured to the central hub 113 of the primary flywheel 111 for constituting a first sub-assembly comprising in particular the primary flywheel 111 carrying the springs 25, the cut 133, the support plate 134A, the bearing 121, the rotor 151 and the washer 123. The plate 116 of the secondary flywheel 1 12, with which the lining of the friction disc 170 cooperates, extends radially, from its hub-shaped flange 117, beyond the rotor 151 along the support flange 137A and the rotor 151, its face turned towards the primary flywheel 111 conforming to the shapes thereof.
Le disque de friction 170 est unique et dès lors de diamètre plus grand que celui des disques de friction 70 de la variante de la figure 1 ; le couvercle 161 du mécanisme d'embrayage 160 est ici de forme creuse et solidarisé à la périphérie du plateau 116 du volant secondaire 112 par les vis 168 ; un second sous-ensemble est ainsi constitué, comprenant le volant secondaire 112, le disque de friction 170 et le mécanisme d'embrayage 160 ; le second sous- ensemble et le premier sous-ensemble sont solidarisés par les vis 120 grâce à des passages 170A ménagés dans le voile du moyeu du disque de friction 170 ; d'autres passages 170B ménagés dans ce voile permettent le montage de l'ensemble des deux sous-ensembles sur l'arbre moteur 1 par les vis 14.The friction disc 170 is unique and therefore has a larger diameter than that of the friction discs 70 of the variant of FIG. 1; the cover 161 of the clutch mechanism 160 is here hollow in shape and secured to the periphery of the plate 116 of the secondary flywheel 112 by the screws 168; a second sub-assembly is thus formed, comprising the secondary flywheel 112, the friction disc 170 and the clutch mechanism 160; the second sub-assembly and the first sub-assembly are secured by the screws 120 through passages 170A formed in the web of the hub of the friction disc 170; other passages 170B made in this veil allow the assembly of the assembly of the two sub-assemblies on the motor shaft 1 by the screws 14.
La figure 3 représente une autre variante d'ensemble selon l'invention ; sur cette figure, les pièces identiques à celles de la figure 1 ou 2, ou jouant le même rôle, portent une référence identique ou augmentée de deux cents et ne seront pas décrites à nouveau en détails. Ici, le double volant amortisseur 200 comprend également des moyens élastiques constitués de deux rangées de ressorts disposées côte à côte axialement et l'embrayage ne comprend qu'un disque de friction, comme à la figure 2.FIG. 3 represents another variant of the assembly according to the invention; in this figure, the parts identical to those of FIG. 1 or 2, or playing the same role, bear an identical reference or increased by two hundred and will not be described again in detail. Here, the double damping flywheel 200 also comprises elastic means constituted by two rows of springs arranged side by side axially and the clutch comprises only a friction disc, as in FIG. 2.
Le volant secondaire 212 présente une jupe secondaire 218, entourée par la jupe primaire 215, comme à la figure 1 , mais ici les jupes 218, 215 s'étendent axialement l'une vers l'autre depuis respectivement le plateau 216 du volant secondaire 212 et le fond du volant primaire 211 en forme de C. Ainsi, la coupe 233 est inversée par rapport à la coupe 133 de la figure 2 ; elle est fixée par son bord en bout de la jupe secondaire 218 en même temps que le flasque d'appui 234A dont des emboutis servent d'appui aux ressorts 25 de la rangée disposée du côté du volant primaire 211. Entre le moyeu central 213 du volant primaire 211 et la rondelle 223, avec laquelle coopèrent les têtes des vis 14, sont disposées axialement deux rondelles entretoises 223A, 223B.The secondary flywheel 212 has a secondary skirt 218, surrounded by the primary skirt 215, as in Figure 1, but here the skirts 218, 215 extend axially towards each other from respectively the plate 216 of the secondary flywheel 212 and the bottom of the primary flywheel 211 in the form of C. Thus, the section 233 is reversed with respect to the section 133 of FIG. 2; it is fixed by its edge at the end of the secondary skirt 218 at the same time as the support flange 234A of which stampings serve to support the springs 25 of the row arranged on the side of the primary flywheel 211. Between the central hub 213 of the primary flywheel 211 and the washer 223, with which the heads of the screws 14 cooperate, are arranged axially two spacer washers 223A, 223B.
Entre le moyeu central 213 et la première rondelle entretoise 223A est pincé un premier voile 227 et entre les première 223A et seconde 223B rondelles entretoises est pincé un second voile 227A.Between the central hub 213 and the first spacer washer 223A is pinched a first web 227 and between the first 223A and second 223B spacer washers is pinched a second web 227A.
Les voiles 227 et 227A présentent, comme précédemment, des échancrures à leur périphérie externe avec la tranche desquelles coopèrent respectivement les ressorts 25 de chaque rangée de ressorts. Le fond 234 de la coupe 233, disposé entre les deux rangées de ressorts, porte les patins d'appui, de même que le plateau 216 du volant secondaire 212, pour appui des ressorts 25 de part et d'autre des voiles 227 et 227A.The webs 227 and 227A have, as before, notches at their outer periphery with the edge of which the springs 25 of each row of springs respectively cooperate. The bottom 234 of the section 233, disposed between the two rows of springs, carries the support pads, as does the plate 216 of the secondary flywheel 212, for support of the springs 25 on either side of the sails 227 and 227A .
Ici, la rondelle de frottement 240, ainsi que la rondelle d'application et la rondelle élastique associées, entoure la première rondelle entretoise 223A et coopère en frottement avec le premier voile 227, en étant entraînée par une patte axiale issue du fond 234 de la coupe 233 et appliquée par une rondelle élastique en appui sur la première rondelle entretoise 223A.Here, the friction washer 240, as well as the associated application washer and the elastic washer, surrounds the first spacer washer 223A and cooperates in friction with the first web 227, being driven by an axial tab from the bottom 234 of the section 233 and applied by an elastic washer bearing on the first spacer washer 223A.
Ici, le roulement 221 est placé entre le plateau 216 du volant secondaire 212 et la seconde rondelle entretoise 223B. Pour formation du premier sous-ensemble, des rivets 220A solidarisent le moyeu central 213 du volant primaire 211 et la première rondelle entretoise 223A, tandis que des rivets 220B solidarisent les deux rondelles entretoises 223A et 223B, les rivets 220A et 220B étant décalés circonferentiellement.Here, the bearing 221 is placed between the plate 216 of the secondary flywheel 212 and the second spacer washer 223B. For the formation of the first sub-assembly, rivets 220A join the central hub 213 of the primary flywheel 211 and the first spacer washer 223A, while rivets 220B join the two spacer washers 223A and 223B, the rivets 220A and 220B being circumferentially offset.
Comme à la figure 2, le plateau 216 du volant secondaire 212 s'étend radialement au delà du rotor 251 qu'il longe.As in FIG. 2, the plate 216 of the secondary flywheel 212 extends radially beyond the rotor 251 that it runs along.
Le mécanisme d'embrayage 160 et le disque de friction 170 sont identiques à ceux de la figure 2.The clutch mechanism 160 and the friction disc 170 are identical to those of FIG. 2.
Ainsi qu'il ressort à l'évidence de la description, le volant primaire 1 1 , 111 , 211 , le plateau de réaction 16, 116, 216 et le plateau intermédiaire 67 sont avantageusement en matière moulable, ici de la fonte.As is evident from the description, the primary flywheel 1 1, 111, 211, the reaction plate 16, 116, 216 and the intermediate plate 67 are advantageously made of moldable material, here cast iron.
Dans tous les cas, la ou les rangées de ressorts 25 sont logées sous le rotor 51 , 151 , 251 de la machine électrique. Ces ressorts 25 peuvent être droits au lieu d'être courbés. Grâce à la présence des ressorts 25, le ou les disques de friction peuvent être du type rigide en sorte que la ou les garnitures de friction sont reliées rigidement au moyeu concerné.In all cases, the row or rows of springs 25 are housed under the rotor 51, 151, 251 of the electric machine. These springs 25 can be straight instead of being bent. Thanks to the presence of the springs 25, the friction disc or discs can be of the rigid type so that the friction pad or pads are rigidly connected to the hub concerned.
La coupe 33 de la figure 1 permet de rigidifier la jupe 18 grâce notamment à son rebord 37 plaqué contre la face d'extrémité de la jupe 15, qui ainsi est résistante malgré la présence des échancrures 74.The section 33 of FIG. 1 makes it possible to stiffen the skirt 18 thanks in particular to its rim 37 pressed against the end face of the skirt 15, which thus is resistant despite the presence of the notches 74.
Le roulement 21 est également implanté dans tous les cas sous le rotor de la machine 50.The bearing 21 is also installed in all cases under the rotor of the machine 50.
L'entraînement de la rondelle de frottement 40, 140, 240 est réalisé simplement à l'aide d'au moins une patte d'orientation axiale obtenue par découpe et pliage à partir du voile 27, 127 ou du fond 234, c'est-à-dire à partir de pièces métalliques.The drive of the friction washer 40, 140, 240 is carried out simply using at least one lug of axial orientation obtained by cutting and folding from the web 27, 127 or the bottom 234, that is i.e. from metal parts.
A la figure 3, le voile 227 a une double fonction puisqu'il sert de portée de frottement. A la figure 1 , le double volant amortisseur est logé globalement sous la machine électrique en étant peu encombrant radialement.In FIG. 3, the web 227 has a double function since it serves as a friction surface. In FIG. 1, the double damping flywheel is housed overall under the electric machine while being radially compact.
La fixation du rotor sur la jupe primaire peut être en variante réalisée par vissage. The attachment of the rotor to the primary skirt can alternatively be carried out by screwing.

Claims

REVENDICATIONS 1. Ensemble constitué d'un embrayage associé à une machine électrique (50,150,250), notamment pour véhicule automobile équipé d'un volant, caractérisé par le fait que le volant est un double volant amortisseur (10,100,200) du genre comportant un volant primaire (11 ,111 ,211) destiné à être relié au vilebrequin (1) du moteur du véhicule et un volant secondaire (12,112,212) destiné à recevoir le mécanisme d'embrayage (60,160) de l'embrayage qui comprend un couvercle (61 ,161 ), des moyens embrayeurs- débrayeurs (63) et un plateau de pression (62), des moyens amortisseurs de torsion à action circonférentielle étant disposés cinematiquement entre les volants primaire (11 ,111 ,21 1 ) et secondaire (12,112,212), le rotor (51 ,151 ,251 ) de la machine électrique (50,150,250) étant porté par le volant primaire (1 1 ,111 ,211), le volant secondaire (12,112,212) comportant un plateau (16,116,216) ayant une face de friction avec laquelle est adaptée à coopérer au moins une garniture (72) d'un disque de friction (70,170) sous l'action des moyens embrayeurs (63) par l'intermédiaire du plateau de pression (62).CLAIMS 1. Assembly consisting of a clutch associated with an electric machine (50,150,250), in particular for a motor vehicle equipped with a flywheel, characterized in that the flywheel is a double damping flywheel (10,100,200) of the type comprising a primary flywheel ( 11, 111, 211) intended to be connected to the crankshaft (1) of the vehicle engine and a secondary flywheel (12,112,212) intended to receive the clutch mechanism (60,160) of the clutch which comprises a cover (61, 161) , clutch-declutching means (63) and a pressure plate (62), torsional damping means with circumferential action being arranged kinematically between the primary (11, 111, 21 1) and secondary (12,112,212) flywheels, the rotor ( 51, 151, 251) of the electric machine (50,150,250) being carried by the primary flywheel (1 1, 111, 211), the secondary flywheel (12,112,212) comprising a plate (16,116,216) having a friction face with which is adapted to vs ooperate at least one lining (72) of a friction disc (70,170) under the action of the engagement means (63) via the pressure plate (62).
2. Ensemble selon la revendication 1 , caractérisé par le fait que le volant primaire (11 ,111 ,211) présente un moyeu central (13,113,213) par lequel il est relié au vilebrequin (1) du moteur, et une jupe dite primaire (15,1 15,215) d'orientation axiale à la périphérie externe de laquelle est solidarisé le rotor2. Assembly according to claim 1, characterized in that the primary flywheel (11, 111, 211) has a central hub (13,113,213) by which it is connected to the crankshaft (1) of the engine, and a so-called primary skirt (15 , 1 15,215) of axial orientation at the outer periphery of which the rotor is secured
(51 ,151 ,251 ).(51, 151, 251).
3. Ensemble selon la revendication 2, caractérisé par le fait que le rotor (51 ,151 ,251) est solidarisé à la jupe primaire (15,1 15,215) par frettage.3. An assembly according to claim 2, characterized in that the rotor (51, 151, 251) is secured to the primary skirt (15.1 15.215) by hooping.
4. Ensemble selon l'une des revendications 2 ou 3, caractérisé par le fait que le plateau (16,216) du volant secondaire (12,212) est muni à sa périphérie externe d'une jupe (18,218) dite secondaire d'orientation axiale entourée par la jupe primaire (15,215).4. Assembly according to one of claims 2 or 3, characterized in that the plate (16,216) of the secondary flywheel (12,212) is provided at its outer periphery with a skirt (18,218) called secondary axially oriented surrounded by the primary skirt (15,215).
5. Ensemble selon la revendication 4, caractérisé par le fait que les jupes primaire (15,215) et secondaire (18,218) s'étendent axialement dans le même sens.5. An assembly according to claim 4, characterized in that the primary (15,215) and secondary (18,218) skirts extend axially in the same direction.
6. Ensemble selon la revendication 4, caractérisé par le fait que les jupes primaire (15,215) et secondaire (18,218) s'étendent axialement l'une vers l'autre. 6. An assembly according to claim 4, characterized in that the primary (15,215) and secondary (18,218) skirts extend axially towards one another.
7. Ensemble selon l'une des revendications 1 à 6, caractérisé par le fait qu'il ne comporte qu'un disque de friction (170).7. Assembly according to one of claims 1 to 6, characterized in that it comprises only a friction disc (170).
8. Ensemble selon l'une des revendications 1 à 6, caractérisé par le fait qu'il comporte deux disques de friction (70) dont les garnitures (72) coopèrent avec un plateau intermédiaire (67) placé axialement entre les deux disques de friction (70) et solidaire en rotation du volant secondaire (12).8. Assembly according to one of claims 1 to 6, characterized in that it comprises two friction discs (70) whose linings (72) cooperate with an intermediate plate (67) placed axially between the two friction discs (70) and integral in rotation with the secondary flywheel (12).
9. Ensemble selon l'une des revendications 7 ou 8 prise conjointement avec l'une des revendications 2 à 6, caractérisé par le fait que la jupe primaire (15) entoure le ou les disques de friction (70,170). 9. Assembly according to one of claims 7 or 8 taken in conjunction with one of claims 2 to 6, characterized in that the primary skirt (15) surrounds the friction disc (s) (70,170).
10. Ensemble selon l'une des revendications 7 ou 8 prise conjointement avec l'une des revendications 2 à 6, caractérisé par le fait que le (ou les) disque(s) de friction (70,170) est (sont) déporté(s) axialement par rapport à la jupe primaire (215).10. Assembly according to one of claims 7 or 8 taken in conjunction with one of claims 2 to 6, characterized in that the (or) disc (s) of friction (70,170) is (are) offset (s ) axially with respect to the primary skirt (215).
11. Ensemble selon l'une des revendications 1 à 10, caractérisé par le fait que les moyens amortisseurs de torsion comprennent des moyens élastiques11. Assembly according to one of claims 1 to 10, characterized in that the torsion damping means comprise elastic means
(25) à action circonférentielle et des moyens de frottement (40,240,41 -44) à action axiale.(25) with circumferential action and friction means (40,240,41 -44) with axial action.
12. Ensemble selon la revendication 11 prise conjointement avec l'une des revendications 2 à 10, caractérisé par le fait que les moyens élastiques sont constitués par une rangée de ressorts (25) disposés circonferentiellement et prenant appui d'un côté sur le volant primaire (1 1 ,1 11 ,21 1 ) et de l'autre côté sur le volant secondaire (12,112,212).12. The assembly of claim 11 taken in conjunction with one of claims 2 to 10, characterized in that the elastic means are constituted by a row of springs (25) arranged circumferentially and bearing on one side on the primary flywheel (1 1, 1 11, 21 1) and on the other side on the secondary flywheel (12,112,212).
13. Ensemble selon la revendication 11 prise conjointement avec l'une des revendications 2 à 10, caractérisé par le fait que les moyens élastiques sont constitués par deux rangées de ressorts (25) disposés circonferentiellement et prenant appui d'un côté sur le volant primaire (11 ,111 ,211) et de l'autre côté sur le volant secondaire (12,1 12,212).13. The assembly of claim 11 taken in conjunction with one of claims 2 to 10, characterized in that the elastic means consist of two rows of springs (25) arranged circumferentially and bearing on one side on the primary flywheel (11, 111, 211) and on the other side on the secondary flywheel (12.1 12.212).
14. Ensemble selon la revendication 13, caractérisé par le fait que les ressorts (25) des deux rangées sont en parallèle. 14. The assembly of claim 13, characterized in that the springs (25) of the two rows are in parallel.
15. Ensemble selon la revendication 13, caractérisé par le fait que les ressorts (25) des deux rangées sont en série. 15. The assembly of claim 13, characterized in that the springs (25) of the two rows are in series.
16. Ensemble selon l'une des revendications 12 à 15 prise en combinaison avec l'une des revendications 2 à 10, caractérisé par le fait que la jupe primaire (15, 1 15,215) entoure les ressorts (25).16. Assembly according to one of claims 12 to 15 taken in combination with one of claims 2 to 10, characterized in that the primary skirt (15, 1 15,215) surrounds the springs (25).
17. Ensemble selon les revendications 5, 8, 13 et 16 prises conjointement, caractérisé par le fait que la jupe primaire (15) entoure également le mécanisme d'embrayage (60) dont le couvercle (61 ) est fixé en bout de la jupe secondaire (18).17. The assembly of claims 5, 8, 13 and 16 taken together, characterized in that the primary skirt (15) also surrounds the clutch mechanism (60) whose cover (61) is fixed at the end of the skirt secondary (18).
18. Ensemble selon la revendication 17, caractérisé par le fait que le plateau (16) du volant secondaire (12) est muni à sa périphérie interne d'une collerette annulaire (17) qui porte une couronne (19), un moyen de palier (21 ) étant placé entre la périphérie interne de la couronne (19) et la périphérie externe du moyeu central (13) du volant primaire (1 1).18. The assembly of claim 17, characterized in that the plate (16) of the secondary flywheel (12) is provided at its inner periphery with an annular flange (17) which carries a crown (19), a bearing means (21) being placed between the inner periphery of the crown (19) and the outer periphery of the central hub (13) of the primary flywheel (1 1).
19. Ensemble selon la revendication 18, caractérisé par le fait que la couronne (19) porte un voile (27) globalement transversal muni de fenêtres à sa périphérie dont le bord radial constitue un appui secondaire pour les moyens élastiques (25).19. The assembly of claim 18, characterized in that the crown (19) carries a web (27) generally transverse provided with windows at its periphery whose radial edge constitutes a secondary support for the elastic means (25).
20. Ensemble selon la revendication 19, caractérisé par le fait que les appuis primaires des moyens élastiques (25), disposés par paires de part et d'autre du voile (27), sont constitués, d'un côté, par un patin d'appui (30) porté par le volant primaire (11) et, de l'autre côté, par un embouti (32) réalisé dans le fond (34) d'une coupe (33) dont le bord cylindrique axial (36) s'étend entre les jupes primaire (15) et secondaire (18) et porte un rebord transversal (37) pour fixation de la coupe (33) en bout de la jupe primaire (15).20. The assembly of claim 19, characterized in that the primary supports of the elastic means (25), arranged in pairs on either side of the web (27), are constituted, on one side, by a pad d 'support (30) carried by the primary flywheel (11) and, on the other side, by a stamping (32) made in the bottom (34) of a cut (33) whose axial cylindrical edge (36) s extends between the primary (15) and secondary (18) skirts and carries a transverse rim (37) for fixing the cut (33) at the end of the primary skirt (15).
21. Ensemble selon l'une des revendications 17 à 20, caractérisé par le fait que la garniture (72) d'un disque de friction (70) est adaptée à être serrée entre le plateau (16) du volant secondaire (12) et un plateau intermédiaire (67) tandis que celle de l'autre disque de friction (70) est adapté à être serrée entre le plateau intermédiaire (67) et le plateau de pression (62) du mécanisme d'embrayage (60). 21. Assembly according to one of claims 17 to 20, characterized in that the lining (72) of a friction disc (70) is adapted to be clamped between the plate (16) of the secondary flywheel (12) and an intermediate plate (67) while that of the other friction disc (70) is adapted to be clamped between the intermediate plate (67) and the pressure plate (62) of the clutch mechanism (60).
22. Ensemble selon la revendication 21 , caractérisé par le fait que la jupe secondaire (18) présente des échancrures axiales (74), formant mortaises, dans lesquelles pénètrent des pattes radiales (75), formant tenons, du plateau intermédiaire (67). 22. The assembly of claim 21, characterized in that the secondary skirt (18) has axial notches (74), forming mortises, into which penetrate radial tabs (75), forming tenons, of the intermediate plate (67).
23. Ensemble selon les revendications 2, 7 et 13 prises conjointement, caractérisé par le fait que le plateau (116) du volant secondaire (112) avec lequel coopère la garniture du disque de friction (170) présente à sa périphérie interne une collerette (117) en forme de moyeu et s'étend, depuis la collerette (117), transversalement au delà du rotor (151) qu'il longe.23. The assembly of claims 2, 7 and 13 taken together, characterized in that the plate (116) of the secondary flywheel (112) with which the lining of the friction disc (170) cooperates has at its internal periphery a flange ( 117) in the form of a hub and extends, from the collar (117), transversely beyond the rotor (151) which it runs along.
24. Ensemble selon la revendication 23, caractérisé par le fait que la jupe primaire (115) du volant primaire (11 1 ) entoure les deux rangées de ressorts (25) disposées axialement côte à côte.24. The assembly of claim 23, characterized in that the primary skirt (115) of the primary flywheel (11 1) surrounds the two rows of springs (25) arranged axially side by side.
25. Ensemble selon la revendication 24, caractérisé par le fait que le fond (134) d'une coupe (133) s'étend axialement entre les deux rangées de ressorts25. The assembly of claim 24, characterized in that the bottom (134) of a cut (133) extends axially between the two rows of springs
(25) et porte des patins (130) disposés dos à dos pour appui primaire des ressorts (25), le bord cylindrique axial de la coupe (133) s'étendant le long de la périphérie interne de la jupe primaire (115) et présentant un rebord transversal (137) pour fixation de la coupe (133) en bout de ladite jupe primaire (115). (25) and carries pads (130) arranged back to back for primary support of the springs (25), the axial cylindrical edge of the cut (133) extending along the internal periphery of the primary skirt (115) and having a transverse rim (137) for fixing the cup (133) at the end of said primary skirt (115).
26. Ensemble selon la revendication 25, caractérisé par le fait que les autres appuis primaires des ressorts (25) sont constitués par des patins d'appui (130) portés, pour la rangée côté mécanisme d'embrayage (160), par un flasque d'appui (134A) solidarisé en bout de la jupe secondaire (115) et, pour l'autre rangée, par le fond du volant primaire (1 11 ) en forme de C. 26. The assembly of claim 25, characterized in that the other primary supports of the springs (25) are constituted by support pads (130) carried, for the row on the clutch mechanism side (160), by a flange support (134A) secured at the end of the secondary skirt (115) and, for the other row, by the bottom of the primary flywheel (1 11) in the shape of a C.
27. Ensemble selon l'une des revendications 23 à 26, caractérisé par le fait qu'à la collerette (117) est solidarisée une couronne (1 19), avec interposition axiale d'un voile (127A), un moyen de palier (121 ) étant placé entre la périphérie interne de la couronne (19) et la périphérie externe du moyeu central (13) du volant primaire (11). 27. An assembly according to one of claims 23 to 26, characterized in that the collar (117) is integral with a crown (1 19), with axial interposition of a web (127A), a bearing means ( 121) being placed between the internal periphery of the crown (19) and the external periphery of the central hub (13) of the primary flywheel (11).
28. Ensemble selon les revendications 26 et 27 prises conjointement, caractérisé par le fait que les appuis secondaires pour les ressorts (25) sont constituées par les bords radiaux d'échancrures ménagées, pour la rangée côté mécanisme d'embrayage (160), dans le voile (127A) et, pour l'autre rangée, dans un voile (127) porté par la couronne (119). 28. An assembly according to claims 26 and 27 taken together, characterized in that the secondary supports for the springs (25) are constituted by the radial edges of indentations, for the row on the clutch mechanism side (160), in the veil (127A) and, for the other row, in a veil (127) carried by the crown (119).
29. Ensemble selon l'une des revendications 19 ou 28 prise en combinaison avec la revendication 1 1 , caractérisé par le fait que les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement (40) présentant une echancrure (41 ) adaptée à recevoir une patte axiale (39) du voile (27,127), ladite rondelle de frottement (40) étant appliquée contre la face interne du fond du volant primaire (1 1 ,11 1 ) en forme de C par une rondelle élastique (42) en appui sur le moyeu central (13, 113) avec interposition d'une rondelle d'application (43). 29. Assembly according to one of claims 19 or 28 taken in combination with claim 1 1, characterized in that the friction means of the torsion damping means comprise a friction washer (40) having a notch (41) adapted to receive a paw axial (39) of the web (27,127), said friction washer (40) being applied against the internal face of the bottom of the primary flywheel (1 1, 11 1) C-shaped by an elastic washer (42) resting on the central hub (13, 113) with interposition of an application washer (43).
30. Ensemble selon les revendications 6, 7 et 13 prises conjointement, caractérisé par le fait que le moyeu central (213) du volant primaire (211) est solidaire de deux rondelles entretoises (223A,223B) disposées axialement, un premier voile (227) étant pincé entre le moyeu central (213) et la première rondelle entretoise (223A) et un second voile (227A) étant pincé entre les deux rondelles entretoises (223A, 223B), un moyen de palier (221 ) étant placé entre le plateau (216) du volant secondaire (212) et la seconde rondelle entretoise (223B).30. An assembly according to claims 6, 7 and 13 taken together, characterized in that the central hub (213) of the primary flywheel (211) is integral with two spacer washers (223A, 223B) arranged axially, a first web (227 ) being pinched between the central hub (213) and the first spacer washer (223A) and a second web (227A) being pinched between the two spacer washers (223A, 223B), a bearing means (221) being placed between the plate (216) of the secondary flywheel (212) and the second spacer washer (223B).
31. Ensemble selon la revendication 30, caractérisé par le fait que les appuis primaires des ressorts (25) des deux rangées sont constitués par le bord radial d'échancrures ménagées à la périphérie des voiles (227,227A) et les appuis secondaires, disposés par paires de part et d'autre des voiles31. An assembly according to claim 30, characterized in that the primary supports of the springs (25) of the two rows are constituted by the radial edge of notches formed at the periphery of the webs (227,227A) and the secondary supports, arranged by pairs on either side of the sails
(227,227A), sont réalisés, d'un côté, par des patins d'appui portés par le fond(227,227A), are made, on one side, by support pads carried by the bottom
(234) d'une coupe (233) s'étendant entre les deux rangées de ressorts (25) et prolongé par un bord cylindrique s'étendant à la périphérie interne de la jupe secondaire (218) muni d'un rebord pour fixation de la coupe (233) en bout de ladite jupe (218) et, de l'autre côté, pour la rangée côté mécanisme d'embrayage(234) of a section (233) extending between the two rows of springs (25) and extended by a cylindrical edge extending at the internal periphery of the secondary skirt (218) provided with a flange for fixing the cut (233) at the end of said skirt (218) and, on the other side, for the row on the clutch mechanism side
(160), par des patins d'appui portés par le plateau (213) et, pour l'autre rangée, par des emboutis d'un flasque d'appui (234A) fixé en bout de la jupe secondaire(160), by support pads carried by the plate (213) and, for the other row, by stampings of a support flange (234A) fixed at the end of the secondary skirt
(218). (218).
32. Ensemble selon la revendication 31 , caractérisé par le fait que les moyens de frottement des moyens amortisseurs de torsion comportent une rondelle de frottement (240) présentant une echancrure adaptée à recevoir une patte axiale issue du fond (234) de la coupe (233), ladite rondelle de frottement32. An assembly according to claim 31, characterized in that the friction means of the torsion damping means comprise a friction washer (240) having a notch adapted to receive an axial tab from the bottom (234) of the cut (233 ), said friction washer
(240) étant appliquée contre la face en regard du premier voile (227) par une rondelle élastique en appui sur la première rondelle entretoise (223A) avec interposition d'une rondelle d'application.(240) being applied against the opposite face of the first web (227) by an elastic washer bearing on the first spacer washer (223A) with the interposition of an application washer.
33. Ensemble selon l'une des revendications 30 à 32, caractérisé par le fait que le plateau (216) du volant secondaire (212) avec lequel coopère la garniture du disque de friction (170) s'étend transversalement au delà du rotor (251 ) qu'il longe.33. Assembly according to one of claims 30 to 32, characterized in that the plate (216) of the secondary flywheel (212) with which the the friction disc lining (170) extends transversely beyond the rotor (251) which it runs along.
34. Ensemble selon l'une des revendications 1 à 33, caractérisé par le fait qu'une butée de débrayage (66) est prévue pour action sur les moyens débrayeurs (63) associés aux moyens embrayeurs (63) pour contrecarrer à volonté l'action des moyens embrayeurs, la butée de débrayage (66) appartenant à un dispositif de débrayage (166) du type concentrique destiné à être traversé par un arbre mené (2).34. Assembly according to one of claims 1 to 33, characterized in that a clutch release bearing (66) is provided for action on the declutching means (63) associated with the clutching means (63) to counteract at will the action of the engagement means, the clutch release bearing (66) belonging to a clutch release device (166) of the concentric type intended to be traversed by a driven shaft (2).
35. Ensemble selon la revendication 34, caractérisé par le fait que le dispositif de débrayage (166) comporte, d'une part, un piston (169) portant la butée de débrayage (66) monté mobile axialement par rapport à une partie fixe (167) présentant une cavité annulaire borgne (168) d'orientation axiale délimitée par le piston (169) pour définir une chambre de travail à volume variable.35. An assembly according to claim 34, characterized in that the declutching device (166) comprises, on the one hand, a piston (169) carrying the declutching stop (66) mounted axially movable relative to a fixed part ( 167) having a blind annular cavity (168) of axial orientation delimited by the piston (169) to define a working chamber with variable volume.
36. Embrayage selon l'une des revendications 1 à 35, caractérisé par le fait que les moyens embrayeurs et débrayeurs appartiennent à un diaphragme36. Clutch according to one of claims 1 to 35, characterized in that the engagement and disengagement means belong to a diaphragm
(63) comportant une partie périphérique en forme de rondelle Belleville, constituant les moyens embrayeurs, prolongée par une partie centrale constituant les moyens débrayeurs, ladite partie centrale étant fragmentée en doigts radiaux par des fentes borgnes, dont les fonds forment des orifices élargis à la périphérie interne de la partie périphérique. (63) comprising a peripheral part in the shape of a Belleville washer, constituting the clutch means, extended by a central part constituting the declutching means, said central part being fragmented into radial fingers by blind slots, the bottoms of which form orifices widened at the internal periphery of the peripheral part.
PCT/FR2000/000677 1999-03-19 2000-03-17 Assembly consisting of a clutch associated with an electrical machine, in particular for motor vehicle WO2000056565A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10084360.3T DE10084360B3 (en) 1999-03-19 2000-03-17 Assembly, consisting of a coupling in conjunction with an electric machine, in particular for motor vehicles
AU33007/00A AU3300700A (en) 1999-03-19 2000-03-17 Assembly consisting of a clutch associated with an electrical machine, in particular for motor vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR99/03461 1999-03-19
FR9903461A FR2791008B1 (en) 1999-03-19 1999-03-19 ASSEMBLY CONSISTING OF A CLUTCH ASSOCIATED WITH AN ELECTRIC MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE

Publications (1)

Publication Number Publication Date
WO2000056565A1 true WO2000056565A1 (en) 2000-09-28

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PCT/FR2000/000677 WO2000056565A1 (en) 1999-03-19 2000-03-17 Assembly consisting of a clutch associated with an electrical machine, in particular for motor vehicle

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AU (1) AU3300700A (en)
DE (1) DE10084360B3 (en)
FR (1) FR2791008B1 (en)
WO (1) WO2000056565A1 (en)

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WO2004083677A1 (en) * 2003-03-21 2004-09-30 Daimlerchrysler Ag Two-mass oscillating wheel with two serially mounted torsion dampers
DE10360783B4 (en) * 2003-05-27 2015-02-05 Audi Ag Arrangement of a starter-generator device
DE19943036B4 (en) * 1999-09-09 2015-09-17 Zf Friedrichshafen Ag drive system
CN112042078A (en) * 2018-04-12 2020-12-04 雷诺股份公司 Wound rotor for synchronous machine

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DE10246227B4 (en) * 2002-10-04 2007-06-14 Zf Sachs Ag Drive unit, in particular for a motor vehicle
DE10250726A1 (en) * 2002-10-31 2004-05-13 Robert Bosch Gmbh Rotor for starter/generator for automobile drive train combined with primary part of dual mass flywheel
DE102008008005A1 (en) * 2008-02-07 2009-08-13 Daimler Ag drive module
DE112012001990A5 (en) 2011-05-05 2014-02-20 Schaeffler Technologies AG & Co. KG Torque-transmitting device
US20140327245A1 (en) * 2011-12-23 2014-11-06 Carrier Corporation Generator and flywheel
DE102013201667A1 (en) * 2013-02-01 2014-08-07 Zf Friedrichshafen Ag Assembly for a hybrid powertrain
DE102020005965A1 (en) 2020-09-30 2022-03-31 Daimler Ag E-machine rotor fixed to the crankshaft with integrated centrifugal pendulum
DE102022102988A1 (en) 2022-02-09 2023-08-10 Schaeffler Technologies AG & Co. KG Torsional vibration damper system and drive train for a motor vehicle
CN114776720B (en) * 2022-05-05 2023-12-26 重庆宗申集研机电科技有限公司 Dual clutch

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DE3737192A1 (en) * 1986-11-11 1988-07-28 Volkswagen Ag Hybrid drive for a vehicle
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FR2777619A1 (en) * 1998-04-06 1999-10-22 Luk Lamellen & Kupplungsbau DIVIDED STEERING WHEEL

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DE19943036B4 (en) * 1999-09-09 2015-09-17 Zf Friedrichshafen Ag drive system
WO2004083677A1 (en) * 2003-03-21 2004-09-30 Daimlerchrysler Ag Two-mass oscillating wheel with two serially mounted torsion dampers
DE10360783B4 (en) * 2003-05-27 2015-02-05 Audi Ag Arrangement of a starter-generator device
EP1482171B1 (en) * 2003-05-27 2018-10-10 Audi Ag Arrangement of a starter generator
CN112042078A (en) * 2018-04-12 2020-12-04 雷诺股份公司 Wound rotor for synchronous machine

Also Published As

Publication number Publication date
DE10084360B3 (en) 2016-06-23
FR2791008A1 (en) 2000-09-22
FR2791008B1 (en) 2001-06-01
DE10084360T1 (en) 2002-02-28
AU3300700A (en) 2000-10-09

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