FR2830589A1 - Hybrid vehicle twin clutch transmission assembly with rotating electrical machine, in which electrical machine is between the two clutches and its rotor and second clutch are supported and centered by a bearing on the machine casing - Google Patents

Hybrid vehicle twin clutch transmission assembly with rotating electrical machine, in which electrical machine is between the two clutches and its rotor and second clutch are supported and centered by a bearing on the machine casing Download PDF

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Publication number
FR2830589A1
FR2830589A1 FR0112915A FR0112915A FR2830589A1 FR 2830589 A1 FR2830589 A1 FR 2830589A1 FR 0112915 A FR0112915 A FR 0112915A FR 0112915 A FR0112915 A FR 0112915A FR 2830589 A1 FR2830589 A1 FR 2830589A1
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FR
France
Prior art keywords
clutch
assembly according
bearing
rotor
intermediate shaft
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR0112915A
Other languages
French (fr)
Other versions
FR2830589B1 (en
Inventor
Ciriaco Bonfilio
Eric Marie
Patrick Luczak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo SE
Original Assignee
Valeo SE
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 SE filed Critical Valeo SE
Priority to FR0112915A priority Critical patent/FR2830589B1/en
Priority to DE10297304.0T priority patent/DE10297304B4/en
Priority to PCT/FR2002/003346 priority patent/WO2003031809A1/en
Publication of FR2830589A1 publication Critical patent/FR2830589A1/en
Application granted granted Critical
Publication of FR2830589B1 publication Critical patent/FR2830589B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B60K6/22—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
    • B60K6/405—Housings
    • 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
    • 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
    • B60L15/2009—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 for braking
    • 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
    • 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
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/025—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the friction type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
    • 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
    • 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
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    • 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
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    • 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
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B60Y2400/4242—Friction clutches of dry type
    • 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
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Arrangement Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The rotor (81) of the electrical machine (80) and the second clutch mechanism (61) are supported and centered by a bearing (46,47) fixed to a casing supporting the machine stator (82) and axially fitted between the two clutches (20,60). The bearing (46,47) is carried on a bell shaped flange (40) fitted between the clutch (20) and the electrical machine (80). The transmission assembly includes two clutches (20,60) and an electrical machine (80) fitted between the engine and its gearbox. Each of the clutches has a clutch mechanism (21,61) associated with a friction disk (22,65) and the electric machine. The clutch mechanisms are integral with the machines rotor (81). The friction disk (22) of the first clutch mechanism (21) is integral in rotation with the engine crankshaft (10). The friction disk (65) of the second clutch mechanism (61) rotates with the main gear shaft (11).

Description

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La présente invention concerne un ensemble de transmission pour véhicule automobile comprenant deux embrayages et une machine électrique.  The present invention relates to a transmission assembly for a motor vehicle comprising two clutches and an electric machine.

Plus précisément, elle concerne un ensemble de transmission pour véhicule automobile comprenant deux embrayages et une machine électrique disposés entre le moteur à combustion interne du véhicule et sa boîte de vitesses, chacun des embrayages comportant un mécanisme d'embrayage associé à un disque de friction et la machine électrique étant constituée d'un rotor et d'un stator, le premier mécanisme d'embrayage étant solidaire en rotation du vilebrequin du moteur à combustion interne et le disque de friction qui lui est associé étant solidaire en rotation, d'une part, du rotor de la machine électrique et, d'autre part, du second mécanisme d'embrayage, le second disque de friction associé audit second mécanisme d'embrayage étant solidaire en rotation de l'arbre d'entrée de la boîte de vitesses.  More specifically, it relates to a transmission assembly for a motor vehicle comprising two clutches and an electric machine arranged between the internal combustion engine of the vehicle and its gearbox, each of the clutches comprising a clutch mechanism associated with a friction disc and the electric machine consisting of a rotor and a stator, the first clutch mechanism being rotatably connected to the crankshaft of the internal combustion engine and the friction disc associated with it being rotationally integral, on the one hand , the rotor of the electric machine and secondly of the second clutch mechanism, the second friction disc associated with said second clutch mechanism being rotatably connected to the input shaft of the gearbox.

Un tel ensemble permet, par exemple, après avoir désengagé les deux embrayages, d'arrêter le moteur à combustion interne et de le relancer par inertie et/ou en faisant fonctionner la machine électrique en moteur, laquelle, lorsqu'elle est entraînée mécaniquement par le moteur, peut fonctionner en génératrice.  Such an assembly makes it possible, for example, after disengaging the two clutches, to stop the internal combustion engine and restart it by inertia and / or by operating the electric motor machine, which, when it is driven mechanically by the engine, can run as a generator.

Un tel ensemble est par exemple du genre de celui décrit dans le document FR-2 797 230.  Such an assembly is for example of the type described in document FR-2 797 230.

La présente invention a pour but de proposer un ensemble de transmission du genre ci-dessus qui soit simple à réaliser, peu encombrant axialement, qui comporte peu de pièces et dans lequel est assuré un centrage précis du rotor afin de réduire les jeux, à savoir l'entrefer rotor-stator, et donc d'améliorer le rendement de la machine électrique.  The object of the present invention is to propose a transmission assembly of the above kind which is simple to produce, is not very bulky axially, has few parts and in which precise centering of the rotor is ensured in order to reduce the games, namely the rotor-stator air gap, and thus improve the efficiency of the electric machine.

Selon l'invention, un ensemble de transmission du genre ci-dessus est caractérisé par le fait que le rotor de la machine électrique, et donc le second mécanisme d'embrayage, sont portés et centrés par un palier, solidaire d'un carter portant le stator, et disposé axialement entre les deux embrayages.  According to the invention, a transmission assembly of the above kind is characterized in that the rotor of the electric machine, and therefore the second clutch mechanism, are carried and centered by a bearing, integral with a bearing housing. the stator, and arranged axially between the two clutches.

Avantageusement, le palier est porté par un flasque dit de palier en forme de cloche disposé entre le premier embrayage et la machine électrique.  Advantageously, the bearing is carried by a so-called bell-shaped bearing flange disposed between the first clutch and the electric machine.

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De préférence, le disque de friction associé au premier mécanisme d'embrayage est solidaire du rotor de la machine tournante par l'intermédiaire d'un arbre dit intermédiaire s'étendant selon l'axe de l'ensemble.  Preferably, the friction disc associated with the first clutch mechanism is integral with the rotor of the rotating machine via an intermediate shaft extending along the axis of the assembly.

Avantageusement, l'extrémité de l'arbre intermédiaire côté vilebrequin est portée par un alésage borgne ménagé en bout de vilebrequin.  Advantageously, the end of the intermediate shaft crankshaft is carried by a blind bore formed at the end of the crankshaft.

De préférence, au voisinage de l'extrémité de l'arbre intermédiaire côté vilebrequin, le disque de friction est solidarisé à l'arbre intermédiaire par l'intermédiaire d'une collerette.  Preferably, in the vicinity of the end of the intermediate shaft on the crankshaft side, the friction disc is secured to the intermediate shaft by means of a flange.

Avantageusement, la collerette et l'arbre intermédiaire sont d'une seule pièce. En variante, la collerette est portée par un moyeu cannelé intérieurement qui coopère avec des cannelures extérieures ménagées à la périphérie de l'arbre intermédiaire.  Advantageously, the flange and the intermediate shaft are in one piece. Alternatively, the flange is carried by an internally splined hub which cooperates with external splines formed at the periphery of the intermediate shaft.

Avantageusement, le rotor de la machine électrique est solidaire en rotation de l'arbre intermédiaire par l'intermédiaire d'un voile.  Advantageously, the rotor of the electric machine is integral in rotation with the intermediate shaft via a web.

De préférence, le voile est porté par un moyeu cannelé intérieurement qui coopère avec des cannelures extérieures ménagées à la périphérie de l'extrémité de l'arbre intermédiaire. En variante, le voile et l'arbre intermédiaire sont d'une seule pièce.  Preferably, the web is carried by an internally splined hub which cooperates with external splines formed at the periphery of the end of the intermediate shaft. Alternatively, the web and the intermediate shaft are in one piece.

De préférence, un dispositif de débrayage étant prévu pour commander chacun des deux embrayages, l'un au moins des dispositifs de débrayage est du type concentrique.  Preferably, a disengagement device being provided for controlling each of the two clutches, at least one of the disengaging devices is of the concentric type.

Avantageusement, le dispositif de débrayage prévu pour commander le premier embrayage est du type concentrique et comporte deux parties en relation de cylindre piston définissant une chambre de travail de volume variable alimentée en fluide hydraulique par un canal creusé dans le flasque de palier ; de préférence, la partie fixe de la chambre de volume variable est portée par le flasque de palier, le dispositif de débrayage s'étendant axialement entre ledit flasque de palier et le premier embrayage ; avantageusement, le dispositif de débrayage entoure l'arbre intermédiaire.  Advantageously, the disengaging device provided for controlling the first clutch is of the concentric type and comprises two parts in piston cylinder relationship defining a working chamber of variable volume supplied with hydraulic fluid by a channel dug into the bearing flange; preferably, the fixed part of the variable volume chamber is carried by the bearing flange, the disengaging device extending axially between said bearing flange and the first clutch; advantageously, the disengaging device surrounds the intermediate shaft.

De préférence, le dispositif de débrayage prévu pour commander le second embrayage est du type concentrique et comporte deux parties en relation de cylindre-piston définissant une chambre de volume variable alimentée en fluide hydraulique ; avantageusement, le dispositif de débrayage s'étend  Preferably, the disengaging device provided for controlling the second clutch is of the concentric type and comprises two parts in cylinder-piston relationship defining a variable volume chamber fed with hydraulic fluid; advantageously, the disengaging device extends

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axialement entre le disque de friction associé au second embrayage et la boîte de vitesses ; de préférence, le dispositif de débrayage entoure l'arbre d'entrée de la boîte de vitesses.  axially between the friction disc associated with the second clutch and the gearbox; preferably, the disengaging device surrounds the input shaft of the gearbox.

Avantageusement, l'un au moins des disques de friction est du type rigide.  Advantageously, at least one of the friction discs is of the rigid type.

De préférence, l'un au moins des disques de friction est du type à amortisseur de torsion.  Preferably, at least one of the friction discs is of the torsion damper type.

Avantageusement, l'un au moins des mécanismes d'embrayage comporte un dispositif de rattrapage d'usure.  Advantageously, at least one of the clutch mechanisms comprises a wear compensating device.

De préférence, le palier est disposé à l'aplomb du rotor de la machine électrique.  Preferably, the bearing is disposed vertically above the rotor of the electric machine.

Pour mieux faire comprendre l'objet de l'invention, on va en décrire maintenant, à titre d'exemples, purement illustratif et non limitatif, des modes de réalisation représentés sur les dessins annexés.  To better understand the object of the invention will now be described, by way of examples, purely illustrative and not restrictive, embodiments shown in the accompanying drawings.

Sur ces dessins : - la figure 1 est une vue en coupe partielle axiale d'un ensemble selon l'invention ; - la figure 2 est une vue analogue à la figure 1 montrant une variante ; - la figure 3 est une vue analogue à la figure 2 montrant une variante.  In these drawings: - Figure 1 is an axial partial sectional view of an assembly according to the invention; - Figure 2 is a view similar to Figure 1 showing a variant; - Figure 3 is a view similar to Figure 2 showing a variant.

En se reportant à la figure 1, on voit qu'un ensemble de transmission, disposé entre un moteur à combustion interne, dont on voit en 10 l'extrémité du vilebrequin, et une boîte de vitesses, dont on voit en 11 l'arbre d'entrée, comprend un premier embrayage 20, un second embrayage 60 et une machine électrique 80.  Referring to FIG. 1, it can be seen that a transmission assembly, arranged between an internal combustion engine, which is seen at the end of the crankshaft, and a gearbox, of which the shaft is shown in FIG. input, comprises a first clutch 20, a second clutch 60 and an electric machine 80.

Le premier embrayage 20 comprend un mécanisme d'embrayage 21, dit premier mécanisme, associé à un disque de friction 22, et à un plateau de réaction 23.  The first clutch 20 comprises a clutch mechanism 21, said first mechanism, associated with a friction disk 22, and a reaction plate 23.

Le premier mécanisme d'embrayage 21 comporte un couvercle 24, un plateau de pression 25 et un diaphragme 26.  The first clutch mechanism 21 comprises a cover 24, a pressure plate 25 and a diaphragm 26.

Le couvercle 24 est métallique, ici en tôle emboutie ; il présente un fond, troué centralement, globalement d'orientation transversale, perpendiculaire à l'axe de l'ensemble, muni à sa périphérie externe d'un rebord annulaire 27 de fixation ; le couvercle 24 a ainsi globalement la forme d'une assiette plate.  The lid 24 is metallic, here in stamped sheet; it has a bottom, holed centrally, generally of transverse orientation, perpendicular to the axis of the assembly, provided at its outer periphery with an annular rim 27 for fixing; the lid 24 thus has the overall shape of a flat plate.

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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 clutch means associated with disengaging means; these may be disengagement levers that can act on axially acting helical springs constituting the engaging means; alternatively, the release levers are constituted by fingers belonging to the central portion of a workpiece whose outer periphery is axially elastic or free of axial elasticity, acting on a Belleville washer forming the clutch means.

Ici, les moyens embrayeurs et débrayeurs appartiennent à une même pièce, le diaphragme 26, 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 26 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 clutch and disengagement means belong to one and the same piece, the diaphragm 26, which comprises a peripheral portion in the form of a Belleville washer extended internally by a central portion divided into radial fingers by blind slots opening internally in a central opening that the diaphragm 26 whose form, in the free state, is frustoconical. The slots open at their outer periphery in enlarged orifices forming the bottom of the slots.

Les doigts du diaphragme 26 forment des leviers de débrayage et donc les moyens débrayeurs, tandis que la partie périphérique, en forme de rondelle Belleville, du diaphragme 26 constitue les moyens embrayeurs de l'embrayage, lesdits orifices étant implantés à la périphérie interne de la rondelle Belleville du diaphragme 26.  The fingers of the diaphragm 26 form disengaging levers and thus the declutching means, while the Belleville-shaped washer-shaped peripheral portion of the diaphragm 26 constitutes the engagement means of the clutch, said orifices being implanted at the inner periphery of the clutch. Belleville washer from the diaphragm 26.

Les moyens débrayeurs sont prévus pour contrecarrer à volonté l'action des moyens embrayeurs sous l'action d'une butée de débrayage 28 appartenant à un dispositif de débrayage 29 du type concentrique, pour réduire l'encombrement axial entre un flasque 40 dit de palier, solidaire d'un carter

Figure img00040001

portant le stator de la machine électrique et dont le rôle apparaîtra ci-après, et le mécanisme d'embrayage 21. The disengaging means are provided to counteract at will the action of the clutch means under the action of a release stop 28 belonging to a disengagement device 29 of the concentric type, to reduce the axial space between a flange 40 said bearing , integral with a housing
Figure img00040001

carrying the stator of the electric machine and whose role will appear hereinafter, and the clutch mechanism 21.

Comme décrit dans le document US-A-5 141 091, la butée de débrayage 28 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 Pat. No. 5,141,091, the clutch abutment 28 can belong to a concentric clutch device with cable control, this abutment then being mounted on a part driven in translation and fixed in rotation, said part being in nut screw relationship with a driving piece fixed in translation and mobile in rotation. The driving part carries a pulley on which the control cable is wound. For more details, reference is made to US-A-5 141 091.

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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 29 est du type hydraulique et comporte deux parties en relation de cylindre piston, à savoir une partie fixe 30, délimitant une cavité annulaire borgne 31 d'orientation axiale, et un piston 32 monté mobile axialement par rapport à la partie fixe.  Here, the concentric disengaging device 29 is of the hydraulic type and comprises two parts in piston cylinder relation, namely a fixed part 30 delimiting an axially oriented blind annular cavity 31, and a piston 32 mounted axially movable relative to the fixed part.

Ce piston 32 porte la butée de débrayage 28 et pénètre dans la cavité 31 pour définir avec celle-ci une chambre de travail de volume variable, la cavité 31 communiquant par un canal 33, creusé dans le flasque de palier 40, 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 30 est en une seule pièce en matière moulable.  This piston 32 carries the release stop 28 and enters the cavity 31 to define therewith a working chamber of variable volume, the cavity 31 communicating via a channel 33, hollowed in the bearing flange 40, with a connected pipe. a master cylinder actuated by a clutch pedal or an electric motor actuator 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 30 is in one piece of moldable material.

La partie fixe 30 pourrait comporter, pour réduction de l'encombrement radial, deux pièces coaxiales, à savoir, un corps extérieur entourant un tubeguide métallique plus long axialement que le corps extérieur. Le fond de la cavité 31 serait 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 32 lorsque le dispositif de débrayage 29 n'est pas monté sur le flasque de palier 40.  The fixed part 30 could comprise, for reducing the radial size, two coaxial parts, namely, an outer body surrounding a metal tubeguide longer axially than the outer body. The bottom of the cavity 31 would be delimited by a transverse flange belonging to the guide tube assembled to the outer body by means of an intermediate connecting piece. 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 32 when the release device 29 is not mounted on the bearing flange 40.

Un ressort de précharge 34 agit entre le corps extérieur en matière moulable et la butée de débrayage 28 pour maintenir celle-ci en appui constant sur les moyens débrayeurs 26.  A preloading spring 34 acts between the outer body of moldable material and the clutch release bearing 28 to maintain it in constant abutment on the disengaging means 26.

La butée de débrayage 28 comporte un roulement à billes avec une bague tournante profilée pour contact ponctuel avec les extrémités internes des doigts du diaphragme 26 et une bague non tournante attelée axialement au piston 32, qui porte ainsi la butée 28.  The clutch abutment 28 comprises a ball bearing with a profiled rotating ring for point contact with the inner ends of the fingers of the diaphragm 26 and a non-rotating ring coupled axially to the piston 32, which thus carries the abutment 28.

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 32, ledit rebord étant  Here, the outer ring of the bearing is rotating, while the inner ring of the bearing is fixed in rotation and has at its inner periphery a radial flange bearing on a front shoulder of the piston 32, said flange being

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plaqué sur ledit épaulement par une rondelle élastique à action axiale, ici en forme de rondelle Belleville, prenant appui sur le piston. La butée 28 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 du flasque de palier 40, de manière directe, à l'aide d'oreilles, ou indirecte, à l'aide d'une semelle d'adaptation et d'un montage baïonnette.  plated on said shoulder by an elastic washer with axial action, here in the form of a Belleville washer, bearing on the piston. The stop 28 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 size, knowing that the outer body is intended to be fixed on the bottom of the bearing flange 40, directly, with the aid of ears, or indirectly, using an adapter plate and a bayonet mount.

Ici, le corps extérieur présente des oreilles de fixation et la butée 28 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.  Here, the outer body has attachment lugs and the stop 28 is of the self-centering type because it can move radially in contact with the shoulder of the piston under the control of the spring washer axial action.

Un soufflet de protection non référencé est prévu pour un bon coulissement du piston 32.  A non-referenced protection bellows is provided for a good sliding of the piston 32.

Quoi qu'il en soit, le dispositif de débrayage 29 est du type concentrique car il est destiné à être traversé par un arbre 35 dit intermédiaire. Le dispositif 29 entoure donc l'arbre 35.  In any case, the disengaging device 29 is of the concentric type because it is intended to be traversed by an intermediate shaft 35. The device 29 thus surrounds the shaft 35.

Le mécanisme d'embrayage 21 est associé au disque de friction 22.  The clutch mechanism 21 is associated with the friction disc 22.

Le disque de friction 22 porte à sa périphérie externe au moins une garniture de friction destinée à être serrée entre deux plateaux sous l'action des moyens embrayeurs 26.  The friction disk 22 carries at its outer periphery at least one friction lining intended to be clamped between two plates under the action of the clutch means 26.

La garniture de friction est solidaire d'un support accouplé ici de manière rigide à l'arbre intermédiaire 35.  The friction lining is secured to a support coupled here rigidly to the intermediate shaft 35.

L'arbre intermédiaire 35 traverse donc le dispositif de débrayage 29 et porte le disque de friction 22 par l'intermédiaire d'une collerette 36 qu'il présente et dont la périphérie externe est solidarisée, ici par des rivets 37, à la périphérie interne du disque de friction 22. Usuellement, l'extrémité de l'arbre intermédiaire 35 côté moteur à combustion interne est reçue dans un alésage borgne 38 porté par l'arbre de sortie du moteur à combustion interne, à savoir ici le vilebrequin 10 du moteur à combustion interne du véhicule, avec interposition d'un roulement.  The intermediate shaft 35 thus passes through the disengaging device 29 and carries the friction disc 22 via a flange 36 that it has and whose outer periphery is secured, here by rivets 37, to the inner periphery. of friction disc 22. Usually, the end of the intermediate shaft 35 on the internal combustion engine is received in a blind bore 38 carried by the output shaft of the internal combustion engine, namely here the crankshaft 10 of the engine internal combustion of the vehicle, with the interposition of a bearing.

Le support du disque de friction 22 peut être noyé dans la garniture. Ici, deux garnitures identiques sont disposées axialement de part et d'autre du support axialement élastique, en étant fixées à celui-ci par collage ; ceci permet de réduire l'encombrement axial, l'épaisseur morte des garnitures destinée à l'opération de rivetage étant supprimée, lorsque, en variante, les garnitures sont  The support of the friction disc 22 may be embedded in the liner. Here, two identical fittings are arranged axially on either side of the axially elastic support, being fixed thereto by gluing; this makes it possible to reduce the axial bulk, the dead thickness of the gaskets for the riveting operation being eliminated, when, as a variant, the gaskets are

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fixées au support par rivetage, le support étant conformé à sa périphérie externe pour être axialement élastique et écrasé progressivement. Ici, par exemple, les garnitures de friction peuvent être collées directement dans les zones centrales de portée des pales tripodes décrites dans le document FR-A-2 693 778 auquel on pourra se reporter pour plus de précisions.  fixed to the support by riveting, the support being shaped at its outer periphery to be axially elastic and gradually crushed. Here, for example, the friction linings can be glued directly into the central zones of the tripod blades described in document FR-A-2693778 to which reference may be made for more details.

La garniture du disque de friction 22 est adaptée à être serrée entre le plateau de pression 25 du premier mécanisme d'embrayage 21 et un plateau de réaction 23.  The lining of the friction disc 22 is adapted to be clamped between the pressure plate 25 of the first clutch mechanism 21 and a reaction plate 23.

Le plateau de réaction 23 présente une ouverture centrale par laquelle il est centré en bout du vilebrequin 10 auquel il est fixé, grâce à des vis 42, par l'intermédiaire d'une bride de fixation que comporte le vilebrequin 10.  The reaction plate 23 has a central opening by which it is centered at the end of the crankshaft 10 to which it is fixed, by means of screws 42, by means of a fastening flange that the crankshaft 10 comprises.

Le plateau de réaction 23 et le mécanisme d'embrayage 21 constituent le volant d'inertie associé au vilebrequin 10 du moteur à combustion interne lorsque le premier embrayage 20 est débrayé.  The reaction plate 23 and the clutch mechanism 21 constitute the flywheel associated with the crankshaft 10 of the internal combustion engine when the first clutch 20 is disengaged.

Le couvercle 24 est fixé par sa périphérie externe en extrémité d'une jupe que présente à sa périphérie le plateau de réaction 23, ici par des vis 41.  The cover 24 is fixed by its outer periphery at the end of a skirt that has at its periphery the reaction plate 23, here by screws 41.

Le plateau de pression 25 présente un bossage annulaire d'orientation axiale dirigé vers le fond du couvercle 24 pour contact avec la périphérie externe de la rondelle Belleville du diaphragme 26 ; ce bossage est fractionné et venu de moulage avec le plateau de pression 25.  The pressure plate 25 has an annular projection of axial orientation directed towards the bottom of the cover 24 for contact with the outer periphery of the Belleville washer of the diaphragm 26; this boss is split and molded with the pressure plate 25.

La périphérie interne de la rondelle Belleville du diaphragme 26 est montée de manière basculante ou pivotante entre un appui primaire issu ici du fond du couvercle 24 par emboutissage et un appui secondaire ici élastique constitué par une rondelle de forme tronconique assujettie au couvercle 24 par des pattes issues par découpe et pliage du fond du couvercle 61. Les pattes traversent axialement les orifices élargis du diaphragme 26 et sont repliées à leur extrémité libre radialement vers l'extérieur pour formation d'un coude de calage pour la rondelle.  The inner periphery of the Belleville washer of the diaphragm 26 is pivotally or pivotally mounted between a primary bearing here from the bottom of the cover 24 by stamping and a secondary support here elastic consisting of a frustoconical shaped washer secured to the cover 24 by legs The tabs axially pass through the enlarged orifices of the diaphragm 26 and are folded at their free end radially outwardly to form a wedge for wedging the washer.

Le plateau de pression 25 est lié en rotation au couvercle 24 par des languettes tangentielles 43 élastiques à action axiale autorisant un mouvement axial du plateau de pression 25 par rapport au couvercle 24 lui-même lié au plateau de réaction 23 ; les languettes 43 sont liées au couvercle 24 par des  The pressure plate 25 is rotatably connected to the cover 24 by axially acting tangential tangential tongues 43 permitting axial movement of the pressure plate 25 with respect to the cover 24 itself connected to the reaction plate 23; the tabs 43 are connected to the cover 24 by

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rivets 44 et à des pattes saillantes radiales du plateau de pression 25 également par des rivets 45.  rivets 44 and radial projecting lugs of the pressure plate 25 also by rivets 45.

Ainsi qu'on l'aura compris, les languettes 43 exercent une action élastique de rappel du plateau de pression 25 en direction du fond du couvercle 24 et le plateau de pression 25 présente frontalement une face de friction pour contact avec la garniture concernée du disque de friction 22, tandis que le plateau de réaction 23 présente frontalement une face de friction pour contact avec les garnitures de friction du disque 22.  As will have been understood, the tongues 43 exert an elastic return action of the pressure plate 25 in the direction of the bottom of the lid 24 and the pressure plate 25 has a friction face frontally for contact with the concerned lining of the disk. 22 while the reaction plate 23 has a friction face frontally for contact with the friction linings of the disc 22.

Normalement, l'embrayage est donc engagé et le couple moteur est transmis de l'arbre menant ou vilebrequin 10 à l'arbre intermédiaire 35 via le premier embrayage 20. Dans cette position, la rondelle Belleville du diaphragme 26, constituant 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 du plateau de pression 25. Le diaphragme 26 sollicite donc le plateau de pression 25 en direction du plateau 23 en sorte que les garnitures de friction du disque de friction 22 sont serrées entre les plateaux de pression 25 et de réaction 23.  Normally, the clutch is engaged and the engine torque is transmitted from the driving shaft or crankshaft 10 to the intermediate shaft 35 via the first clutch 20. In this position, the Belleville washer of the diaphragm 26, constituting the clutch means of the clutch is in contact, on the one hand, at its inner periphery with the primary support, and, on the other hand, at its outer periphery with the boss of the pressure plate 25. The diaphragm 26 thus solicits the plate 25 to the plate 23 so that the friction linings of the friction disk 22 are clamped between the pressure and reaction plates 23.

Le disque de friction 22 est donc entraîné en rotation en sorte que la collerette 36, accouplée aux garnitures, entraîne en rotation l'arbre mené intermédiaire 35.  The friction disc 22 is thus rotated so that the flange 36, coupled to the linings, rotates the intermediate driven shaft 35.

Dans cette position, le piston 32 du dispositif de débrayage 29 est en position reculée, partie inférieure de la figure 1, et la cavité 31 est dépressurisée.  In this position, the piston 32 of the clutch device 29 is in the retracted position, the lower part of Figure 1, and the cavity 31 is depressurized.

Lorsque l'on pressurise la cavité 31, le piston 32 se déplace vers la gauche, partie supérieure de la figure 1, et entraîne donc la butée de débrayage 28, qui agit alors en poussant sur les doigts du diaphragme 26, pour faire pivoter celuici. Le diaphragme 26 quitte alors son appui primaire pour prendre appui sur son appui secondaire. Dans ce cas, la charge exercée par le diaphragme 26 sur le plateau de pression 25 diminue puis s'annule, le plateau de pression 25 suivant alors le mouvement du diaphragme 26 sous l'action de rappel des languettes 43. Les garnitures de friction sont alors libérées et l'embrayage désengagé. Le couple moteur n'est alors pas transmis. When the cavity 31 is pressurized, the piston 32 moves to the left, the upper part of FIG. 1, and thus causes the clutch release stop 28, which then acts by pushing on the fingers of the diaphragm 26, to rotate it. . The diaphragm 26 then leaves its primary support to rely on its secondary support. In this case, the load exerted by the diaphragm 26 on the pressure plate 25 decreases and then vanishes, the pressure plate 25 then following the movement of the diaphragm 26 under the return action of the tongues 43. The friction linings are then released and the clutch disengaged. The motor torque is not transmitted.

Lorsque l'on dépressurise la cavité 31, le diaphragme 26 ramène le piston 32 en arrière et les garnitures sont serrées.  When the cavity 31 is depressurized, the diaphragm 26 returns the piston 32 back and the linings are tightened.

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L'extrémité de l'arbre intermédiaire 35, opposée à celle qui est centrée dans le vilebrequin 10, porte extérieurement des cannelures qui coopèrent avec des cannelures internes ménagées dans un moyeu 51 porté par un voile 52 solidaire par des rivets 53 d'une bride interne 54 du plateau de réaction 50 du second embrayage 60.  The end of the intermediate shaft 35, opposite that which is centered in the crankshaft 10, externally carries grooves which cooperate with internal grooves formed in a hub 51 carried by a web 52 secured by rivets 53 of a flange. internal 54 of the reaction plate 50 of the second clutch 60.

Le flasque 40 présente une ouverture centrale 46 dans laquelle est logé un roulement 47 pour le centrage du moyeu 51.  The flange 40 has a central opening 46 in which is housed a bearing 47 for centering the hub 51.

La bride interne 54 du plateau de réaction 50 prolonge intérieurement une jupe 55 d'orientation axiale.  The inner flange 54 of the reaction plate 50 internally extends a skirt 55 of axial orientation.

Le rotor 81 comporte un paquet de tôles, en fer doux, monté par frettage sur la périphérie externe de la jupe 55 présentant à son extrémité une collerette 56 formant une butée pour le rotor 81. On monte donc à chaud le paquet de tôles par emmanchement sur la périphérie externe de la jupe 55 jusqu'au contact avec la collerette 56.  The rotor 81 comprises a pack of plates, made of soft iron, mounted by hooping on the outer periphery of the skirt 55 having at its end a flange 56 forming a stop for the rotor 81. The heat is then mounted hot sheet metal by fitting on the outer periphery of the skirt 55 to contact with the flange 56.

Les tôles de forme annulaire forment ainsi une couronne d'orientation axiale montée par frettage sur la jupe 55.  The ring-shaped plates thus form an axially oriented ring mounted by hooping on the skirt 55.

Les tôles peuvent être isolées par oxydation ou munies d'isolants.  The sheets can be isolated by oxidation or provided with insulators.

Le stator 82 est formé, de manière similaire au rotor 81, 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 83,84, le rotor 81 et le stator 82 étant représentés de manière schématique.  The stator 82 is formed, similarly to the rotor 81, from a pack of annular sheets of soft iron, reconstituting an axially oriented ring. Notches are made in the sheets for passage of electrical windings 83,84, the rotor 81 and the stator 82 being shown schematically.

En injectant un courant électrique asservi dans les enroulements statoriques, on transforme la machine électrique 80 en démarreur pour le moteur à combustion interne du véhicule, l'embrayage 20 étant serré.  By injecting a controlled electric current into the stator windings, the electrical machine 80 is converted into a starter for the internal combustion engine of the vehicle, the clutch 20 being tightened.

Pour cela, il faut prévoir un dispositif de commande du type électronique.  For this, it is necessary to provide a control device of the electronic type.

La machine est ici du type moteur électrique asynchrone. Bien entendu, la machine électrique peut être du type moteur électrique synchrone ou autre. The machine is here of the asynchronous electric motor type. Of course, the electric machine may be synchronous electric motor type or other.

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 by the machine. The machine can constitute an electric brake and bring a surplus of energy to the internal combustion engine to assist it or to prevent it from stalling; we can also filter the vibrations.

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Pour plus de précision, on se reportera au document W098/105882.  For more details, see W098 / 105882.

En variante, on fixe le rotor 81 sur la périphérie externe de la jupe 55 à l'aide de cannelures ou par emmanchement par cônes. Dans tous les cas, le rotor 81 est solidaire tant en rotation qu'axialement du voile 52 et du plateau de réaction 50.  Alternatively, the rotor 81 is fixed on the outer periphery of the skirt 55 by means of splines or by conical fitting. In all cases, the rotor 81 is integral both rotatably and axially with the web 52 and the reaction plate 50.

Bien entendu, on peut fixer le rotor 81 sur la jupe 55 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, it is possible to fix the rotor 81 on the skirt 55 by means of screws bearing on a fastener washer, passing through the bundle of sheets in a manner similar to that described in document DE-C-3 227 810. Elastic elements can also be used.

Le stator 82 est fixé ici par frettage à sa périphérie externe sur un carter tel que la cloche du second embrayage. Toute autre forme de fixation comme le vissage est envisageable.  The stator 82 is fixed here by hooping at its outer periphery on a housing such as the bell of the second clutch. Any other form of attachment such as screwing is possible.

On appréciera que le mode de fixation par frettage favorise la réduction de l'encombrement radial.  It will be appreciated that the method of fastening by hooping promotes the reduction of the radial size.

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 may be equipped with a wear compensating device to compensate in particular the wear of the friction liners and maintain the diaphragm in a constant position when the clutch is engaged.

Dans la figure 1, t'embrayage 20 est du type poussé car la butée 28 agit en poussant centralement sur le diaphragme 26. 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 20 is of the pushed type because the stop 28 acts by pushing centrally on the diaphragm 26. In a variant, the clutch is of the pulled type. In this case, the stop is coupled to a docking piece 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 disengagement operation is performed 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 du plateau de pression 25 peut être mobile par rapport au plateau de pression 25 pour compenser l'usure des garnitures de friction, des ressorts à action circonférentielle agissant entre le plateau de pression 25 et le bossage, des  In this case, the peripheral portion of the Belleville washer of the diaphragm is in contact, at its outer periphery, with a bearing carried by the cover and its inner 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 wear-compensating device; As a result, the boss of the pressure plate 25 can be movable relative to the pressure plate 25 to compensate for wear of the friction liners, circumferentially acting springs acting between the pressure plate 25 and the boss,

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moyens à rampes faisant varier la distance axiale entre le bossage et le plateau de pression 25.  ramp means varying the axial distance between the boss and the pressure plate 25.

La jupe 55 est venue de moulage avec le plateau de réaction 50. En variante, elle est rapportée sur ledit plateau, par exemple par des vis.  The skirt 55 is molded with the reaction plate 50. Alternatively, it is attached to said plate, for example by screws.

Le plateau de réaction 50 est destiné à coopérer avec un disque de friction associé au mécanisme d'embrayage 61 du second embrayage 60.  The reaction plate 50 is intended to cooperate with a friction disk associated with the clutch mechanism 61 of the second clutch 60.

Le mécanisme 61 comprend un couvercle 62 solidaire par sa périphérie externe du plateau de réaction 50.  The mechanism 61 comprises a cover 62 secured by its outer periphery to the reaction plate 50.

Un plateau de pression 63 est attelé au couvercle 62 par des languettes tangentielles 64.  A pressure plate 63 is coupled to the cover 62 by tangential tabs 64.

Les plateaux de réaction 50 et de pression 62 sont destinés à serrer entre eux les garnitures d'un disque de friction 65 dont le moyeu 66 est solidaire de l'arbre 11 d'entrée de la boîte de vitesses grâce à des cannelures longitudinales.  The reaction plates 50 and pressure 62 are intended to clamp together the lining of a friction disk 65 whose hub 66 is integral with the input shaft 11 of the gearbox through longitudinal grooves.

Ainsi, le plateau de réaction 50 est destiné à être relié de manière débrayable à l'arbre 11 d'entrée de la boîte de vitesses.  Thus, the reaction plate 50 is intended to be disengageably connected to the input shaft 11 of the gearbox.

Ici, des moyens amortisseurs de torsion à action circonférentielle sont disposés cinématiquement entre les garnitures du disque de friction 65 et son moyeu 66 ; ces moyens amortisseurs de torsion comprennent des moyens élastiques à action circonférentielle et des moyens de frottement à action axiale.  Here, circumferentially acting torsion damping means are arranged kinematically between the lining of the friction disc 65 and its hub 66; these torsion damping means comprise circumferentially acting elastic means and axially acting friction means.

Ici, les moyens amortisseurs de torsion comprennent un amortisseur principal et un amortisseur secondaire.  Here, the torsion damping means comprise a main damper and a secondary damper.

Une telle disposition est bien connue par elle-même et ne sera donc pas décrite en détails.  Such an arrangement is well known by itself and will not be described in detail.

Comme on le voit sur la figure, les moyens élastiques sont des ressorts à boudin 67,68 s'étendant ciconférentiellement, et les moyens de frottement comportent des rondelles de frottement.  As seen in the figure, the elastic means are coil springs 67,68 extending ciconferentially, and the friction means comprise friction washers.

Pour plus de précisions concernant le disque de friction 65 on pourra se reporter au document FR-A-2 792 698.  For more details on the friction disc 65, see document FR-A-2 792 698.

Comme pour le premier embrayage 20, le second embrayage 60 est à diaphragme 69 et du type poussé ; pour la manoeuvre de cet embrayage, il est prévu un dispositif de débrayage 71, analogue au dispositif de débrayage 29 associé au premier embrayage 20 ; l'embrayage est représenté embrayé dans la  As for the first clutch 20, the second clutch 60 is diaphragm 69 and push type; for the operation of this clutch, there is provided a release device 71, similar to the clutch device 29 associated with the first clutch 20; the clutch is shown engaged in the

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moitié supérieure droite de la figure et débrayé dans la moitié inférieure droite de la figure.  upper right half of the figure and disengaged in the lower right half of the figure.

Ici, le second embrayage 60 comporte un dispositif de rattrapage d'usure 75 du type de celui décrit dans le document FR-A-2 739 158.  Here, the second clutch 60 comprises a wear compensating device 75 of the type described in document FR-A-2 739 158.

La machine 80 peut servir à synchroniser la vitesse des arbres 35 et 11 pour faciliter le passage des vitesses. Il est dans ce cas intéressant que la butée associée au dispositif de débrayage 71 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 35 et 11.  The machine 80 can be used to synchronize the speed of the shafts 35 and 11 to facilitate shifting. In this case, it is advantageous for the stop associated with the disengagement device 71 to be operated by a receiver whose transmitter is operated by an actuator controlled by a computer receiving the information coming from sensors receiving the speed of the shafts 35 and 11.

Bien entendu tout type de machines électriques, à flux magnétique axial ou radial, peut convenir. La machine 80 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 electrical machine with axial or radial magnetic flux may be suitable. The machine 80 may be of the asynchronous type, in the abovementioned manner, synchronous with a 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.  The electric machine may be of the synchronous type with a ring-brush system.

La figure 2 montre un ensemble analogue à celui de la figure 1 sauf qu'ici l'arbre intermédiaire 135 porte, d'un côté, des cannelures pour entraînement en rotation du disque de friction 22 par des cannelures ménagées à l'intérieur d'un moyeu 166 porté par une collerette 136 solidaire du disque de friction 22 et, de l'autre côté, le rotor 81 de la machine électrique 80.  Figure 2 shows an assembly similar to that of Figure 1 except that here the intermediate shaft 135 carries, on one side, splines for driving in rotation of the friction disc 22 by splines formed inside of a hub 166 carried by a flange 136 integral with the friction disk 22 and, on the other side, the rotor 81 of the electric machine 80.

La figure 3 montre un ensemble analogue à celui de la figure 2 sauf qu'ici le disque de friction 122 du premier embrayage 20 est du type à amortisseur de torsion et le disque de friction 165 du second embrayage 30 est du type rigide. Figure 3 shows an assembly similar to that of Figure 2 except that here the friction disc 122 of the first clutch 20 is of the torsion damping type and the friction disc 165 of the second clutch 30 is of the rigid type.

Claims (21)

REVENDICATIONS 1. Ensemble de transmission pour véhicule automobile comprenant deux embrayages (20,60) et une machine électrique (80) disposés entre le moteur à combustion interne du véhicule et sa boîte de vitesses, chacun des embrayages (20,60) comportant un mécanisme d'embrayage (21,61-161) associé à un disque de friction (22-122,65-165) et la machine électrique (80) étant constituée d'un rotor (81) et d'un stator (82), le premier mécanisme d'embrayage (21) étant solidaire en rotation du vilebrequin (10) du moteur à combustion interne et le disque de friction (22-122) qui lui est associé étant solidaire en rotation, d'une part, du rotor (81) de la machine électrique et, d'autre part, du second A transmission unit for a motor vehicle comprising two clutches (20, 60) and an electric machine (80) arranged between the internal combustion engine of the vehicle and its gearbox, each of the clutches (20, 60) having a clutch mechanism. clutch (21,61-161) associated with a friction disc (22-122,65-165) and the electrical machine (80) consisting of a rotor (81) and a stator (82), the first clutch mechanism (21) being rotatably connected to the crankshaft (10) of the internal combustion engine and the friction disc (22-122) associated therewith being rotatably connected, on the one hand, with the rotor (81); ) of the electric machine and, secondly, of the second
Figure img00130001
Figure img00130001
 mécanisme d'embrayage (61-161), le second disque de friction (65-165) associé audit second mécanisme d'embrayage (61-161) étant solidaire en rotation de l'arbre d'entrée (11) de la boîte de vitesses, caractérisé par le fait que le rotor (81) de la machine électrique (80), et donc le second mécanisme d'embrayage (61-161), sont portés et centrés par un palier (46,47), solidaire d'un carter portant le stator (82), et disposé axialement entre les deux embrayages (20,60).  clutch mechanism (61-161), the second friction disk (65-165) associated with said second clutch mechanism (61-161) being rotatably connected to the input shaft (11) of the transmission box (61-161). speeds, characterized in that the rotor (81) of the electric machine (80), and therefore the second clutch mechanism (61-161), are carried and centered by a bearing (46, 47), secured to a casing carrying the stator (82), and arranged axially between the two clutches (20,60). 2. Ensemble selon la revendication 1, caractérisé par le fait que le palier (46,47) est porté par un flasque (40) dit de palier en forme de cloche disposé entre le premier embrayage (20) et la machine électrique (80).  2. An assembly according to claim 1, characterized in that the bearing (46,47) is carried by a flange (40) called bell-shaped bearing disposed between the first clutch (20) and the electric machine (80). . 3. Ensemble selon l'une des revendications 1 ou 2, caractérisé par le fait que le disque de friction (22,122) associé au premier mécanisme d'embrayage (21) est solidaire du rotor (81) de la machine tournante (80) par l'intermédiaire d'un arbre (35,135) dit intermédiaire s'étendant selon l'axe de l'ensemble.  3. Assembly according to one of claims 1 or 2, characterized in that the friction disk (22,122) associated with the first clutch mechanism (21) is integral with the rotor (81) of the rotary machine (80) by via an intermediate shaft (35, 135) extending along the axis of the assembly. 4. Ensemble selon la revendication 3, caractérisé par le fait que l'extrémité de l'arbre intermédiaire (35,135) côté vilebrequin (10) est portée par un alésage borgne (38) ménagé en bout de vilebrequin (10).  4. An assembly according to claim 3, characterized in that the end of the intermediate shaft (35,135) crankshaft (10) is carried by a blind bore (38) formed at the end of the crankshaft (10). 5. Ensemble selon l'une des revendications 3 ou 4, caractérisé par le fait que, au voisinage de l'extrémité de l'arbre intermédiaire (35,135) côté vilebrequin (10), le disque de friction (22,122) est solidarisé à l'arbre intermédiaire (35,135) par l'intermédiaire d'une collerette (36,136).  5. An assembly according to one of claims 3 or 4, characterized in that, in the vicinity of the end of the intermediate shaft (35,135) crankshaft (10), the friction disc (22,122) is secured to the intermediate shaft (35,135) via a flange (36,136). 6. Ensemble selon la revendication 5, caractérisé par le fait que la collerette (36) et l'arbre intermédiaire (35) sont d'une seule pièce.  6. An assembly according to claim 5, characterized in that the flange (36) and the intermediate shaft (35) are in one piece. <Desc/Clms Page number 14> <Desc / Clms Page number 14> 7. Ensemble selon la revendication 5, caractérisé par le fait que la collerette (136) est portée par un moyeu cannelé intérieurement qui coopère avec des cannelures extérieures ménagées à la périphérie de l'arbre intermédiaire (135).  7. An assembly according to claim 5, characterized in that the flange (136) is carried by an internally splined hub which cooperates with external splines formed at the periphery of the intermediate shaft (135). 8. Ensemble selon l'une des revendications 3 à 7, caractérisé par le fait que le rotor (81) de la machine électrique (80) est solidaire en rotation de l'arbre intermédiaire (35,135) par l'intermédiaire d'un voile (52,152).  8. Assembly according to one of claims 3 to 7, characterized in that the rotor (81) of the electric machine (80) is integral in rotation with the intermediate shaft (35,135) via a veil (52.152). 9. Ensemble selon la revendication 8, caractérisé par le fait que le voile (52) est porté par un moyeu (51) cannelé intérieurement qui coopère avec des cannelures extérieures ménagées à la périphérie de l'extrémité de l'arbre intermédiaire (35).  9. An assembly according to claim 8, characterized in that the web (52) is carried by a hub (51) grooved internally which cooperates with external splines formed at the periphery of the end of the intermediate shaft (35). . 10. Ensemble selon la revendication 8, caractérisé par le fait que le voile (152) et l'arbre intermédiaire (135) sont d'une seule pièce.  10. An assembly according to claim 8, characterized in that the web (152) and the intermediate shaft (135) are in one piece. 11. Ensemble selon l'une des revendication 1 à 10, caractérisé par le fait que, un dispositif de débrayage (29,71) étant prévu pour commander chacun des deux embrayages (20,60), l'un au moins des dispositifs de débrayage (29,71) est du type concentrique.  11. An assembly according to one of claims 1 to 10, characterized in that, a disengaging device (29,71) being provided to control each of the two clutches (20,60), at least one of the declutching (29,71) is of the concentric type. 12. Ensemble selon les revendications 11 et 2, prises conjointement, caractérisé par le fait que le dispositif de débrayage (29) prévu pour commander le premier embrayage (20) est du type concentrique et comporte deux parties en relation de cylindre piston définissant une chambre de travail de volume variable alimentée en fluide hydraulique par un canal (33) creusé dans le flasque de palier (40).  12. An assembly according to claims 11 and 2, taken together, characterized in that the disengaging device (29) provided for controlling the first clutch (20) is of the concentric type and comprises two parts in piston cylinder relationship defining a chamber variable volume workpiece supplied with hydraulic fluid by a channel (33) dug into the bearing flange (40). 13. Ensemble selon la revendication 12, caractérisé par le fait que la partie fixe de la chambre de volume variable est portée par le flasque de palier (40), le dispositif de débrayage (29) s'étendant axialement entre ledit flasque de palier (40) et le premier embrayage (20).  13. An assembly according to claim 12, characterized in that the fixed part of the variable volume chamber is carried by the bearing flange (40), the disengaging device (29) extending axially between said bearing flange ( 40) and the first clutch (20). 14. Ensemble selon l'une des revendications 12 ou 13 prise conjointement avec la revendication 3, caractérisé par le fait que le dispositif de débrayage (29) entoure l'arbre intermédiaire (35,135).  14. Assembly according to one of claims 12 or 13 taken in conjunction with claim 3, characterized in that the release device (29) surrounds the intermediate shaft (35,135). 15. Ensemble selon l'une des revendications 11 à 14, caractérisé par le fait que le dispositif de débrayage (71) prévu pour commander le second embrayage (60) est du type concentrique et comporte deux parties en relation de  15. Assembly according to one of claims 11 to 14, characterized in that the disengaging device (71) provided for controlling the second clutch (60) is of the concentric type and comprises two parts in connection with each other. <Desc/Clms Page number 15><Desc / Clms Page number 15> cylindre-piston définissant une chambre de volume variable alimentée en fluide hydraulique.  cylinder-piston defining a chamber of variable volume fed with hydraulic fluid. 16. Ensemble selon la revendication 15, caractérisé par le fait que le dispositif de débrayage (71) s'étend axialement entre le disque de friction (65) associé au second embrayage (60) et la boîte de vitesses.  16. An assembly according to claim 15, characterized in that the disengaging device (71) extends axially between the friction disk (65) associated with the second clutch (60) and the gearbox. 17. Ensemble selon l'une des revendications 15 ou 16, caractérisé par le fait que le dispositif de débrayage (71) entoure l'arbre d'entrée (11) de la boîte de vitesses.  17. An assembly according to one of claims 15 or 16, characterized in that the disengaging device (71) surrounds the input shaft (11) of the gearbox. 18. Ensemble selon l'une des revendications 1 à 17, caractérisé par le fait que l'un au moins des disques de friction (22,165) est du type rigide.  18. Assembly according to one of claims 1 to 17, characterized in that at least one of the friction discs (22,165) is of the rigid type. 19. Ensemble selon l'une des revendications 1 à 17, caractérisé par le fait que l'un au moins des disques de friction (65,122) est du type à amortisseur de torsion.  19. Assembly according to one of claims 1 to 17, characterized in that at least one of the friction discs (65,122) is of the torsion damper type. 20. Ensemble selon l'une des revendications 1 à 19, caractérisé par le fait que l'un au moins des mécanismes d'embrayage (61) comporte un dispositif de rattrapage d'usure.  20. An assembly according to one of claims 1 to 19, characterized in that at least one of the clutch mechanisms (61) comprises a wear compensating device. 21. Ensemble selon l'une des revendications 1 à 20, caractérisé par le fait que le palier (46,47) est disposé à l'aplomb du rotor (81) de la machine électrique. 21. Assembly according to one of claims 1 to 20, characterized in that the bearing (46,47) is disposed vertically above the rotor (81) of the electric machine.
FR0112915A 2001-10-08 2001-10-08 AUTOMOTIVE VEHICLE TRANSMISSION KIT INCLUDING TWO CLUTCHES AND AN ELECTRIC MACHINE Expired - Lifetime FR2830589B1 (en)

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FR0112915A FR2830589B1 (en) 2001-10-08 2001-10-08 AUTOMOTIVE VEHICLE TRANSMISSION KIT INCLUDING TWO CLUTCHES AND AN ELECTRIC MACHINE
DE10297304.0T DE10297304B4 (en) 2001-10-08 2002-10-02 Transmission unit for a motor vehicle, comprising two clutches and an electric machine
PCT/FR2002/003346 WO2003031809A1 (en) 2001-10-08 2002-10-02 Transmission assembly for motor vehicle comprising two clutches and an electric machine

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FR0112915A FR2830589B1 (en) 2001-10-08 2001-10-08 AUTOMOTIVE VEHICLE TRANSMISSION KIT INCLUDING TWO CLUTCHES AND AN ELECTRIC MACHINE

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FR2830589B1 (en) 2004-04-23
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