EP3212967A1 - Power train with a variable-speed transmission and motor vehicle of hybrid type using such a power train - Google Patents

Power train with a variable-speed transmission and motor vehicle of hybrid type using such a power train

Info

Publication number
EP3212967A1
EP3212967A1 EP15753334.0A EP15753334A EP3212967A1 EP 3212967 A1 EP3212967 A1 EP 3212967A1 EP 15753334 A EP15753334 A EP 15753334A EP 3212967 A1 EP3212967 A1 EP 3212967A1
Authority
EP
European Patent Office
Prior art keywords
shaft
power train
sun gear
hollow
gear
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.)
Withdrawn
Application number
EP15753334.0A
Other languages
German (de)
French (fr)
Inventor
Misa MILOSAVLJEVIC
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of EP3212967A1 publication Critical patent/EP3212967A1/en
Withdrawn legal-status Critical Current

Links

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
    • B60K6/36—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 transmission gearings
    • B60K6/365—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 transmission gearings with the gears having orbital motion
    • 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
    • B60K6/383—One-way clutches or freewheel devices
    • 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
    • B60K6/42—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
    • 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
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/724—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously using external powered electric machines
    • F16H3/725—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously using external powered electric machines with means to change ratio in the mechanical gearing
    • 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
    • B60K2006/4816—Electric machine connected or connectable to gearbox internal shaft
    • 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
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
    • F16H2200/2082—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches one freewheel mechanisms
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
    • F16H2200/2084—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches two freewheel mechanisms
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2094—Transmissions using gears with orbital motion using positive clutches, e.g. dog clutches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/909—Gearing
    • Y10S903/91—Orbital, e.g. planetary gears
    • Y10S903/911—Orbital, e.g. planetary gears with two or more gear sets
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/912—Drive line clutch
    • Y10S903/913—One way
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/912—Drive line clutch
    • Y10S903/914—Actuated, e.g. engaged or disengaged by electrical, hydraulic or mechanical means
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/915—Specific drive or transmission adapted for hev
    • Y10S903/917—Specific drive or transmission adapted for hev with transmission for changing gear ratio
    • Y10S903/919—Stepped shift

Definitions

  • the present invention relates to a powertrain comprising a variable speed transmission device and a hybrid type of motor vehicle using such a group.
  • a hybrid-type vehicle comprises a powertrain that uses alone or in combination, as a traction / propulsion drive mode, an internal combustion engine with a variable speed transmission device, and a rotary electric machine connected to an electrical source, such as one or more batteries.
  • This combination has the advantage of optimizing the performance of this vehicle, including reducing emissions of pollutants into the atmosphere and reducing fuel consumption.
  • the use of the electric machine is preferred.
  • the engine is used to move this vehicle for uses where high driving power and a long operating autonomy are required.
  • a powertrain in particular for a hybrid vehicle, with a variable speed transmission device comprising an epicyclic motor gear train with a sun gear and a each connected to the shaft of the heat engine by a controlled-control coupling and a fixed part of the vehicle by a unidirectional coupling and another epicyclic gear train connecting the epicyclic engine train to a motion transmission path to a driving axle of the vehicle.
  • the two controlled-control couplings are in a position such that the speed and the engine-torque of the motor shaft is not transmitted to the crown and the planet.
  • the invention proposes to overcome the drawbacks mentioned above by means of a simple and inexpensive arrangement ensuring the continuity of the speed and the engine torque when shifting.
  • the invention relates to a power unit of a motor vehicle comprising a heat engine, a variable speed transmission device comprising an epicyclic motor train with a sun gear carried by a hollow shaft and a ring carried by a hollow shaft surrounding the hollow shaft of the sun gear, said sun gear and said ring being each connected to the shaft of the heat engine by a controlled-control coupling and a fixed part of the vehicle by a unidirectional coupling, and a transmission path of movement to an axle -engine, characterized in that it comprises a controlled control connection means between the two hollow shafts.
  • the controlled-control connection means may comprise at least one radial shoe housed in the wall of the sun gear shaft and cooperating with the shaft of the crown.
  • the pad may include an upper end with a surface of a friction material for connection to the hollow shaft of the ring.
  • the pad can be housed in a radial bore passing through the wall of the shaft and opening into a hollow chamber of the shaft.
  • the hollow chamber may be delimited by at least a portion of the wall of the hollow shaft and two transverse partitions.
  • the chamber can be connected to a pressurizing device.
  • the pressurizing device may comprise a fluid supply line in the hollow chamber and a pressure device.
  • the pressure device may comprise a piston and a device for controlling this piston.
  • the fluid may be the lubricating oil.
  • the invention also relates to a hybrid type of motor vehicle, which may comprise a powertrain as mentioned above and a powerplant / generator.
  • Figure 1 which is a diagram showing a powertrain according to the invention applied to a drive system of a hybrid vehicle
  • Figure 2 which is an enlarged view of a detail of the transmission device.
  • the powertrain comprises a heat engine 10, in particular an internal combustion engine, with a motor shaft 12, here derived from the crankshaft of this engine, a variable speed transmission device 14 and a driving axle 16 which drives the driving wheels 18 of the vehicle, advantageously via a differential bridge 20.
  • the motor shaft 12 can also see a receiving shaft function but for the sake of simplification of the description, this shaft remains referred to as the motor shaft so as to distinguish it from other shafts of the transmission device.
  • the power train also comprises a driving / generating machine 22 with a rotor 24.
  • This machine is, by way of example only, an electric machine connected to batteries (not shown) which is used either as an electric motor for the moving the vehicle either as a generator to charge the batteries or to power the vehicle's electrical accessories.
  • the speed variation transmission device 14 comprises a main epicyclic gear train 26, called the epicyclic heat engine gear train, with two controlled-control couplings 28, 30, such as disc clutches, and two automatic unidirectional couplings, such as freewheels 32. , 34.
  • the motor epicyclic gear train 26 comprises a sun gear 36 with a strip 38 toothed externally and carried by a flange 40.
  • This flange is fixedly mounted on a cylindrical hollow shaft 42, said sun gear shaft, to cap the shaft 12 of the motor being free in rotation but fixed in translation relative thereto.
  • the free end 44 of this shaft is supported in a bearing 46 carried by a fixed portion 48 of the powertrain of the vehicle through the unidirectional coupling 32, called planetary freewheel.
  • the hollow shaft of sun gear is sealingly closed by a partition 50 at its end 44 and carries, also in leaktight manner, an internal partition 52 which is housed in the hollow part of this shaft and facing the end. free of the motor shaft 12 thus delimiting a hollow chamber 54.
  • This train also comprises a ring 56 with a ring 58 toothed internally, placed concentrically to the sun gear, and a sail 60 connected to a cylindrical hollow shaft 62, said crown shaft, surrounding the hollow shaft 42 of the sun wheel while being free in rotation but fixed in translation relative thereto.
  • This ring is connected externally to the fixed part 48 of the powertrain of the vehicle by the unidirectional coupling 34, called crown freewheel.
  • the inner partition 52 is placed in such a manner that the hollow chamber 54 of the sun gear shaft 42 is in concordance with at least a portion of the hollow shaft 62 of the ring gear.
  • this epicyclic motor train comprises a planet carrier 64 with advantageously three satellites 66, in the form of an externally toothed wheel, placed in the same angular interval relative to each other (here at 120 °) and meshing with the crown and the sun gear.
  • the ring 58 of the crown, the strip 38 of the sun gear and the satellites 66 are located in the same plane, here in a vertical plane by considering FIG.
  • These satellites are each carried by a horizontal axis 68 being free in rotation but fixed in translation thereon. These satellite axes are connected to a vertical wall 70 connected to a tubular bearing 72, said bearing planet carrier, which surrounds the sun shaft 42 being free to rotate thereon.
  • the free ends of the shafts of the sun gear and the ring each carry a controlled-control coupling 28 and 30, preferably a disk clutch.
  • the clutch 28 said planetary clutch, comprises a friction disk 74, carried fixedly in rotation but free in axial translation on the sun gear shaft 42.
  • This friction disk is intended to be clamped between a plate of friction.
  • reaction 76 fixedly mounted in translation and in rotation on the shaft 12 of the engine, and a pressure plate 78, movable in translation relative to this pressure plate while being fixed in rotation with it.
  • This pressure plate is controlled in axial displacement by a release actuator 80, here in the form of a lever 82 pivoting on a fixed point of the power unit.
  • the pressure plate 76 continues, on its periphery, by a horizontal wall 84 which carries, in a fixed manner in rotation and free in axial translation, another friction disc 86, coaxial with the friction disk 74 and which is part of the other clutch 30, referred to as a crown clutch.
  • This disc is able to be clamped between a reaction plate 88 fixedly mounted in translation and in rotation on the free end of the crown shaft 62, and a pressure plate 90 movable in axial translation under the action Another actuator 92.
  • this actuator is in the form of a lever 94 pivoting on a fixed point of the powertrain.
  • the epicyclic motor train 26 is connected to another epicyclic gear train 96, said motion distribution train.
  • This train has the essential role of transmitting the rotational movement of the machine 22 to the drive axle 1 6 when the vehicle is in hybrid operation and / or the motor 10 and epicyclic gear 26 to the drive axle.
  • the vertical wall 70 of the planet carrier 64 bears on the face opposite to that of the satellites 66, a horizontal strip 100 toothed internally. This wall and this strip thus form the ring 102 of the epicyclic motion distribution train.
  • This epicyclic motion distribution train 96 which is placed coaxially with the epicyclic motor gear train 26 by surrounding the sun gear shaft 42, comprises a planet carrier 104 with advantageously three planet wheels 106, in the form of a gear with external toothing, carried by satellite axes 108 and placed in the same angular interval relative to each other (here at 120 °) and meshing with the toothing of the strip 100 of the ring 102.
  • sun gear 1 10 which comprises a strip 1 12 toothed externally and carried by a flange 1 14.
  • This flange is fixedly mounted on a tubular shaft 1 1 6, said additional sun gear shaft, which surrounds, freely in rotation but fixedly in translation, the sun gear shaft 42 of the epicyclic motor gear train 26.
  • the free end of the tubular shaft 1 1 6 fixedly carries a gear 1 18 which cooperates with another gear 120 fixedly supported by the rotor 24 of the electric machine.
  • the planet axes 108 are carried by a plate 122 forming part of the planet carrier and comprising a tubular bearing 124 freely rotating around but fixedly in translation the tubular shaft of sun gear 1 1 6.
  • This bearing 124 fixedly bears a toothed wheel 126 which cooperates with a toothed wheel 128 connected to the driving axle 1 6.
  • This set of two toothed wheels thus forms a motion transmission path between the epicyclic gear train 96 and the axle 16.
  • This epicyclic gear train 96 also carries a controlled-control coupling 130 making it possible to connect its crown 102, either to the plate 122 or to the fixed part 48 of the powertrain depending on the drive mode desired for the vehicle.
  • the transmission device comprises a controlled control connection means 132 between the hollow shaft 42 of the sun gear 36 and the hollow shaft 62 of the ring gear 54 of the epicyclic motor gear train 26.
  • connection means is here in the form of at least one radial shoe 134, here two diametrically opposed pads, carried by the circular wall 136 of the sun shaft 42 of the sun gear.
  • pads are advantageously of circular section and are carried, sealed, by bores 138 passing right through the wall 136 of the hollow shaft.
  • the pads have an upper end 140 vis-à-vis the inner face 142 of the wall 144 of the shaft 62 with a curved profile substantially identical to the profile of the face 142 being advantageously a friction material as well as a lower end 146 facing the hollow chamber 54 and which can be subjected to the action of a force to move them towards the inner face 142 of the wall 144.
  • these pads may be entirely of a friction material.
  • this force is generated by pressurizing the chamber 54 by means of a pressurizing device 147, in particular hydraulic.
  • this fluid is the oil of the speed transmission or lubrication device of the engine and the introduction of this fluid and its pressurization inside the chamber 54 by the pipe 148 are controlled by any means 149, as a piston 150 controlled by a control means 152.
  • any other pressurizing device within the reach of those skilled in the art, such as a pump, for example a piston, may be used.
  • one of the clutches is in the engaged position while the other one of the clutches is in the disengaged position to obtain a gear ratio and the controlled-control link means 132 is inoperative.
  • the speed (and the engine torque) coming from the motor shaft 12 is successively transmitted to the clutch 28, to the hollow shaft 42, to the sun gear 36, to the planet carrier 64 of the epicyclic gear train. motor, then to the ring gear 102, to the planet carrier 104, to the gears 126 and 128 and to the driving axle 1 6.
  • the clutch 28 moves from the engaged position to the disengaged position and the clutch 30 moves from the disengaged position to the engaged position.
  • the controlled control link means 132 is activated.
  • control means 152 activates the piston 150 so that it injects the fluid under pressure into the chamber 54.
  • This pressurization of the chamber applies a force on the lower ends 146 of the pads by pushing them towards the inner wall 142 of the hollow shaft 62.
  • the sun gear shaft 42 is rotatably connected to the shaft 62 of the crown and the rotational movement of the shaft 12 is transmitted back to the trains 26 and 96 and to the axle.
  • the sun gear shaft 42 moves and accelerates the shaft 62 by its kinetic energy. By the same, the shaft 42 slows down.
  • the controlled control linkage 132 is then deactivated and the clutch 30 is in the engaged position.
  • the sun gear 36 is then stopped while the ring gear 56 is rotated by the drive shaft 12 under the actuation of the clutch 30.
  • the dead time the time required for the shaft 62 to stop
  • the torque failure is less noticeable by the driver, but also, the energy required to compensate the torque to the wheel during this transition decreases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Transmissions (AREA)
  • Structure Of Transmissions (AREA)
  • Retarders (AREA)

Abstract

The present invention relates to a motor vehicle power train comprising a combustion engine (10), a variable-speed transmission (14) comprising an engine epicyclic gear box (26) with a sun gear (36) born by a hollow shaft (42) and an annulus gear (56) born by a hollow shaft (62) surrounding the sun gear hollow shaft (42), said sun gear and said annulus gear being each connected to the shaft (12) of the combustion engine (10) by a controlled-operation coupling (28, 30) and to a stationary part (48) of the vehicle by a one-way coupling (32, 34), and a movement-transmission path (126, 128) transmitting movement to a driving axle (16). According to the invention, the power train comprises a controlled-operation means (132) of connection between the two hollow shafts (42, 62).

Description

Groupe motopropulseur avec un dispositif de transmission à variation de vitesse et véhicule automobile de type hybride utilisant un tel groupe. La présente invention se rapporte à un groupe motopropulseur comportant un dispositif de transmission à variation de vitesse et à un véhicule automobile de type hybride utilisant un tel groupe.  Power train with a variable speed transmission device and a hybrid type motor vehicle using such a group. The present invention relates to a powertrain comprising a variable speed transmission device and a hybrid type of motor vehicle using such a group.
Comme cela est déjà connu, un véhicule de type hybride comporte un groupe motopropulseur qui utilise seul ou en combinaison, comme mode d'entraînement en traction/propulsion, un moteur thermique à combustion interne avec un dispositif de transmission à variation de vitesse, et une machine électrique rotative reliée à une source électrique, telle qu'une ou plusieurs batteries. As already known, a hybrid-type vehicle comprises a powertrain that uses alone or in combination, as a traction / propulsion drive mode, an internal combustion engine with a variable speed transmission device, and a rotary electric machine connected to an electrical source, such as one or more batteries.
Cette combinaison a pour avantage d'optimiser les performances de ce véhicule, notamment en réduisant les émissions de polluants dans l'atmosphère et en diminuant la consommation en carburant. Ainsi, lorsque l'on souhaite déplacer le véhicule avec un couple important sur une grande plage de vitesses tout en limitant la génération de gaz d'échappement et de bruit, comme dans un site urbain, l'utilisation de la machine électrique est privilégiée. This combination has the advantage of optimizing the performance of this vehicle, including reducing emissions of pollutants into the atmosphere and reducing fuel consumption. Thus, when it is desired to move the vehicle with a large torque over a wide range of speeds while limiting the generation of exhaust gas and noise, as in an urban site, the use of the electric machine is preferred.
Par contre, le moteur thermique est utilisé pour déplacer ce véhicule lors d'utilisations où une puissance d'entraînement élevée et une grande autonomie de fonctionnement sont demandées.  On the other hand, the engine is used to move this vehicle for uses where high driving power and a long operating autonomy are required.
Il a été proposé, notamment dans la demande de brevet français N° 2 962 697 du demandeur, un groupe motopropulseur, notamment pour un véhicule hybride, avec un dispositif de transmission à variation de vitesse comprenant un train épicycloïdal de moteur avec un planétaire et une couronne reliés chacun à l'arbre du moteur thermique par un accouplement à commande contrôlée et à une partie fixe du véhicule par un accouplement unidirectionnel et un autre train épicycloïdal reliant le train épicycloïdal de moteur à une voie de transmission de mouvement à un essieu-moteur du véhicule. It has been proposed, in particular in the French patent application No. 2,962,697 of the applicant, a powertrain, in particular for a hybrid vehicle, with a variable speed transmission device comprising an epicyclic motor gear train with a sun gear and a each connected to the shaft of the heat engine by a controlled-control coupling and a fixed part of the vehicle by a unidirectional coupling and another epicyclic gear train connecting the epicyclic engine train to a motion transmission path to a driving axle of the vehicle.
Dans un souci constant d'amélioration, le demandeur a encore perfectionné ce dispositif de transmission à vitesse. In a constant concern for improvement, the applicant has further perfected this speed transmission device.
En effet, comme mieux décrit dans la demande précitée, lors d'un passage de vitesse, les deux accouplements à commande contrôlée sont dans une position telle que la vitesse et le couple-moteur de l'arbre-moteur n'est pas transmise à la couronne ainsi qu'au planétaire. Indeed, as better described in the aforementioned application, during a gearshift, the two controlled-control couplings are in a position such that the speed and the engine-torque of the motor shaft is not transmitted to the crown and the planet.
Ceci a pour inconvénient d'entraîner une rupture dans la transmission de la vitesse ainsi que du couple-moteur à l'essieu-moteur, ce qui génère un inconfort de conduite pour le conducteur. This has the disadvantage of causing a rupture in the transmission of the speed as well as the engine torque to the driving axle, which generates driving discomfort for the driver.
La présente invention se propose de remédier aux inconvénients mentionnés ci-dessus grâce à une disposition simple et peu coûteuse assurant la continuité de la vitesse et du couple-moteur lors de passage de vitesse. A cet effet, l'invention concerne un groupe motopropulseur de véhicule automobile comportant un moteur thermique, un dispositif de transmission à variation de vitesse comprenant un train épicycloïdal de moteur avec un planétaire porté par un arbre creux et une couronne portée par un arbre creux entourant l'arbre creux du planétaire, ledit planétaire et ladite couronne étant reliés chacun à l'arbre du moteur thermique par un accouplement à commande contrôlée et à une partie fixe du véhicule par un accouplement unidirectionnel, et une voie de transmission de mouvement à un essieu-moteur, caractérisé en ce qu'il comprend un moyen de liaison à commande contrôlée entre les deux arbres creux. Le moyen de liaison à commande contrôlée peut comprendre au moins un patin radial logé dans la paroi de l'arbre du planétaire et coopérant avec l'arbre de la couronne. Le patin peut comprendre une extrémité supérieure avec une surface en un matériau de friction pour la liaison avec l'arbre creux de la couronne. The present invention proposes to overcome the drawbacks mentioned above by means of a simple and inexpensive arrangement ensuring the continuity of the speed and the engine torque when shifting. To this end, the invention relates to a power unit of a motor vehicle comprising a heat engine, a variable speed transmission device comprising an epicyclic motor train with a sun gear carried by a hollow shaft and a ring carried by a hollow shaft surrounding the hollow shaft of the sun gear, said sun gear and said ring being each connected to the shaft of the heat engine by a controlled-control coupling and a fixed part of the vehicle by a unidirectional coupling, and a transmission path of movement to an axle -engine, characterized in that it comprises a controlled control connection means between the two hollow shafts. The controlled-control connection means may comprise at least one radial shoe housed in the wall of the sun gear shaft and cooperating with the shaft of the crown. The pad may include an upper end with a surface of a friction material for connection to the hollow shaft of the ring.
Le patin peut être logé dans un alésage radial traversant la paroi de l'arbre et débouchant dans une chambre creuse de l'arbre. The pad can be housed in a radial bore passing through the wall of the shaft and opening into a hollow chamber of the shaft.
La chambre creuse peut être délimitée par au moins une partie de la paroi de l'arbre creux et deux cloisons transversales. La chambre peut être raccordée à un dispositif de mise sous pression. The hollow chamber may be delimited by at least a portion of the wall of the hollow shaft and two transverse partitions. The chamber can be connected to a pressurizing device.
Le dispositif de mise sous pression peut comprendre une conduite d'amenée de fluide dans la chambre creuse et un dispositif de pression. Le dispositif de pression peut comprendre un piston et un dispositif de commande de ce piston. The pressurizing device may comprise a fluid supply line in the hollow chamber and a pressure device. The pressure device may comprise a piston and a device for controlling this piston.
Avantageusement, le fluide peut être l'huile de lubrification. L'invention concerne également un véhicule automobile de type hybride, qui peut comprendre un groupe motopropulseur tel que mentionné ci-dessus et une machine motrice/génératrice. Advantageously, the fluid may be the lubricating oil. The invention also relates to a hybrid type of motor vehicle, which may comprise a powertrain as mentioned above and a powerplant / generator.
Les autres caractéristiques et avantages de l'invention vont apparaître maintenant à la lecture de la description qui va suivre, donnée à titre uniquement illustratif et non limitatif, et à laquelle sont annexées : The other features and advantages of the invention will now appear on reading the following description, given solely by way of illustration and not limitation, and to which are appended:
la figure 1 qui est un schéma montrant un groupe motopropulseur selon l'invention appliqué à un système d'entraînement d'un véhicule hybride, et la figure 2 qui est une vue à plus grande échelle d'un détail du dispositif de transmission.  Figure 1 which is a diagram showing a powertrain according to the invention applied to a drive system of a hybrid vehicle, and Figure 2 which is an enlarged view of a detail of the transmission device.
Sur la figure 1 , le groupe motopropulseur comprend un moteur thermique 10, notamment un moteur à combustion interne, avec un arbre-moteur 12, ici issu du vilebrequin de ce moteur, un dispositif de transmission à variation de vitesse 14 et un essieu-moteur 16 qui permet d'entraîner les roues motrices 18 du véhicule, avantageusement par l'intermédiaire d'un pont différentiel 20. In FIG. 1, the powertrain comprises a heat engine 10, in particular an internal combustion engine, with a motor shaft 12, here derived from the crankshaft of this engine, a variable speed transmission device 14 and a driving axle 16 which drives the driving wheels 18 of the vehicle, advantageously via a differential bridge 20.
L'arbre-moteur 12 peut aussi voir une fonction d'arbre récepteur mais pour des raisons de simplification de la description, cet arbre reste dénommé arbre- moteur de manière à pouvoir le distinguer des autres arbres du dispositif de transmission. The motor shaft 12 can also see a receiving shaft function but for the sake of simplification of the description, this shaft remains referred to as the motor shaft so as to distinguish it from other shafts of the transmission device.
Le groupe motopropulseur comprend également une machine motrice/génératrice 22 avec un rotor 24. Cette machine est, uniquement à titre d'exemple, une machine électrique raccordée à des batteries (non représentées) qui est utilisée, soit en tant que moteur électrique pour le déplacement du véhicule, soit en tant que génératrice pour charger les batteries ou alimenter les accessoires électriques du véhicule. The power train also comprises a driving / generating machine 22 with a rotor 24. This machine is, by way of example only, an electric machine connected to batteries (not shown) which is used either as an electric motor for the moving the vehicle either as a generator to charge the batteries or to power the vehicle's electrical accessories.
Le dispositif de transmission à variation de vitesse 14 comprend un train épicycloïdal principal 26, baptisé train épicycloïdal de moteur thermique, avec deux accouplements à commande contrôlée 28, 30, comme des embrayages à disque, et deux accouplements unidirectionnels automatiques, comme des roues libres 32, 34. The speed variation transmission device 14 comprises a main epicyclic gear train 26, called the epicyclic heat engine gear train, with two controlled-control couplings 28, 30, such as disc clutches, and two automatic unidirectional couplings, such as freewheels 32. , 34.
Plus précisément, le train épicycloïdal de moteur 26 comprend un planétaire 36 avec un bandeau 38 denté extérieurement et porté par un flasque 40. Ce flasque est monté fixement sur un arbre creux cylindrique 42, dit arbre de planétaire, venant coiffer l'arbre 12 du moteur en étant libre en rotation mais fixe en translation par rapport à celui-ci. L'extrémité libre 44 de cet arbre prend appui dans un palier 46 porté par une partie fixe 48 du groupe motopropulseur du véhicule au travers de l'accouplement unidirectionnel 32, baptisé roue libre planétaire.  More specifically, the motor epicyclic gear train 26 comprises a sun gear 36 with a strip 38 toothed externally and carried by a flange 40. This flange is fixedly mounted on a cylindrical hollow shaft 42, said sun gear shaft, to cap the shaft 12 of the motor being free in rotation but fixed in translation relative thereto. The free end 44 of this shaft is supported in a bearing 46 carried by a fixed portion 48 of the powertrain of the vehicle through the unidirectional coupling 32, called planetary freewheel.
L'arbre creux de planétaire est fermé de manière étanche par une cloison 50 au niveau de son extrémité 44 et porte, également de manière étanche, une cloison interne 52 qui est logée dans la partie creuse de cet arbre et en regard de l'extrémité libre de l'arbre-moteur 12 en délimitant ainsi une chambre creuse 54.  The hollow shaft of sun gear is sealingly closed by a partition 50 at its end 44 and carries, also in leaktight manner, an internal partition 52 which is housed in the hollow part of this shaft and facing the end. free of the motor shaft 12 thus delimiting a hollow chamber 54.
Ce train comprend également une couronne 56 avec un anneau 58 denté intérieurement, placé concentriquement au planétaire, et un voile 60 relié à un arbre creux cylindrique 62, dit arbre de couronne, venant entourer l'arbre creux 42 du planétaire tout en étant libre en rotation mais fixe en translation par rapport à celui-ci. Cette couronne est reliée extérieurement à la partie fixe 48 du groupe motopropulseur du véhicule par l'accouplement unidirectionnel 34, baptisé roue libre couronne. This train also comprises a ring 56 with a ring 58 toothed internally, placed concentrically to the sun gear, and a sail 60 connected to a cylindrical hollow shaft 62, said crown shaft, surrounding the hollow shaft 42 of the sun wheel while being free in rotation but fixed in translation relative thereto. This ring is connected externally to the fixed part 48 of the powertrain of the vehicle by the unidirectional coupling 34, called crown freewheel.
Comme mieux visible sur la figure 1 , la cloison interne 52 est placée d'une manière telle que la chambre creuse 54 de l'arbre de planétaire 42 soit en concordance avec au moins une partie de l'arbre creux 62 de la couronne. As best seen in FIG. 1, the inner partition 52 is placed in such a manner that the hollow chamber 54 of the sun gear shaft 42 is in concordance with at least a portion of the hollow shaft 62 of the ring gear.
Bien entendu, les deux roues libres 32 et 34 sont placées de manière telle que la couronne 56 et le planétaire 36 ne puissent tourner que dans le même sens et préférentiellement dans le même sens que l'arbre 12 du moteur. Enfin, ce train épicycloïdal de moteur comprend un porte-satellites 64 avec avantageusement trois satellites 66, en forme de roue à denture extérieure, placés dans un même intervalle angulaire l'un par rapport à l'autre (ici à 120°) et engrenant avec la couronne et le planétaire. Of course, the two freewheels 32 and 34 are placed so that the ring 56 and the sun gear 36 can rotate only in the same direction and preferably in the same direction as the shaft 12 of the engine. Finally, this epicyclic motor train comprises a planet carrier 64 with advantageously three satellites 66, in the form of an externally toothed wheel, placed in the same angular interval relative to each other (here at 120 °) and meshing with the crown and the sun gear.
Pour cela, l'anneau 58 de la couronne, le bandeau 38 du planétaire et les satellites 66 sont situés dans un même plan, ici dans un plan vertical en considérant la figure 1 .  For this, the ring 58 of the crown, the strip 38 of the sun gear and the satellites 66 are located in the same plane, here in a vertical plane by considering FIG.
Ces satellites sont portés chacun par un axe horizontal 68 en étant libres en rotation mais fixes en translation sur celui-ci. Ces axes de satellites sont reliés à une paroi verticale 70 reliée à un palier tubulaire 72, dit palier de porte-satellites, qui vient entourer l'arbre de planétaire 42 en étant libre en rotation sur celui-ci.  These satellites are each carried by a horizontal axis 68 being free in rotation but fixed in translation thereon. These satellite axes are connected to a vertical wall 70 connected to a tubular bearing 72, said bearing planet carrier, which surrounds the sun shaft 42 being free to rotate thereon.
Les extrémités libres des arbres du planétaire et de la couronne portent chacune un accouplement à commande contrôlée 28 et 30, de préférence un embrayage à disque. The free ends of the shafts of the sun gear and the ring each carry a controlled-control coupling 28 and 30, preferably a disk clutch.
Ainsi l'embrayage 28, dit embrayage de planétaire, comprend un disque de friction 74, porté de manière fixe en rotation mais libre en translation axiale sur l'arbre de planétaire 42. Ce disque de friction est prévu pour être serré entre un plateau de réaction 76, monté fixement en translation et en rotation sur l'arbre 12 du moteur, et un plateau de pression 78, mobile en translation par rapport à ce plateau de pression tout en étant fixe en rotation avec celui-ci. Ce plateau de pression est commandé en déplacement axial par un actionneur de débrayage 80, ici sous la forme d'un levier 82 basculant sur un point fixe du groupe motopropulseur. Thus the clutch 28, said planetary clutch, comprises a friction disk 74, carried fixedly in rotation but free in axial translation on the sun gear shaft 42. This friction disk is intended to be clamped between a plate of friction. reaction 76, fixedly mounted in translation and in rotation on the shaft 12 of the engine, and a pressure plate 78, movable in translation relative to this pressure plate while being fixed in rotation with it. This pressure plate is controlled in axial displacement by a release actuator 80, here in the form of a lever 82 pivoting on a fixed point of the power unit.
Le plateau de pression 76 se poursuit, sur sa périphérie, par une paroi horizontale 84 qui porte, de manière fixe en rotation et libre en translation axiale, un autre disque de friction 86, coaxial au disque de friction 74 et qui fait partie de l'autre embrayage 30, dénommé embrayage de couronne.  The pressure plate 76 continues, on its periphery, by a horizontal wall 84 which carries, in a fixed manner in rotation and free in axial translation, another friction disc 86, coaxial with the friction disk 74 and which is part of the other clutch 30, referred to as a crown clutch.
Ce disque est à même d'être serré entre un plateau de réaction 88, monté fixement en translation et en rotation sur l'extrémité libre de l'arbre de couronne 62, et un plateau de pression 90 mobile en translation axial sous l'action d'un autre actionneur de débrayage 92. Comme précédemment mentionné, cet actionneur est sous la forme d'un levier 94 basculant sur un point fixe du groupe motopropulseur.  This disc is able to be clamped between a reaction plate 88 fixedly mounted in translation and in rotation on the free end of the crown shaft 62, and a pressure plate 90 movable in axial translation under the action Another actuator 92. As previously mentioned, this actuator is in the form of a lever 94 pivoting on a fixed point of the powertrain.
De manière avantageuse et comme mieux illustré sur la figure 1 , le train épicycloïdal de moteur 26 est relié à un autre train épicycloïdal 96, dit train de distribution de mouvement. Ce train a pour rôle essentiel de transmettre le mouvement de rotation de la machine 22 vers l'essieu-moteur 1 6 lorsque le véhicule est en fonctionnement hybride et/ou du moteur 10 et du train épicycloïdal 26 vers cet essieu-moteur. Advantageously and as best illustrated in Figure 1, the epicyclic motor train 26 is connected to another epicyclic gear train 96, said motion distribution train. This train has the essential role of transmitting the rotational movement of the machine 22 to the drive axle 1 6 when the vehicle is in hybrid operation and / or the motor 10 and epicyclic gear 26 to the drive axle.
A titre uniquement d'exemple, la paroi verticale 70 du porte-satellites 64 porte sur la face opposée à celle des satellites 66, un bandeau horizontal 100 denté intérieurement. Cette paroi et ce bandeau forment ainsi la couronne 102 du train épicycloïdal de distribution de mouvement.  By way of example only, the vertical wall 70 of the planet carrier 64 bears on the face opposite to that of the satellites 66, a horizontal strip 100 toothed internally. This wall and this strip thus form the ring 102 of the epicyclic motion distribution train.
Ce train épicycloïdal de distribution de mouvement 96, qui est placé coaxialement au train épicycloïdal de moteur 26 en entourant l'arbre de planétaire 42, comprend un porte-satellites 104 avec avantageusement trois satellites 106, en forme de roue à denture extérieure, portés par des axes de satellites 108 et placés dans un même intervalle angulaire l'un par rapport à l'autre (ici à 120°) et engrenant avec la denture du bandeau 100 de la couronne 102. This epicyclic motion distribution train 96, which is placed coaxially with the epicyclic motor gear train 26 by surrounding the sun gear shaft 42, comprises a planet carrier 104 with advantageously three planet wheels 106, in the form of a gear with external toothing, carried by satellite axes 108 and placed in the same angular interval relative to each other (here at 120 °) and meshing with the toothing of the strip 100 of the ring 102.
Ces satellites coopèrent également à engrènement avec un planétaire 1 10 qui comprend un bandeau 1 12 denté extérieurement et porté par un flasque 1 14. Ce flasque est monté fixement sur un arbre tubulaire 1 1 6, dit arbre de planétaire additionnel, qui vient entourer, librement en rotation mais fixement en translation, l'arbre de planétaire 42 du train épicycloïdal de moteur 26. L'extrémité libre de l'arbre tubulaire 1 1 6 porte fixement une roue dentée 1 18 qui coopère avec une autre roue dentée 120 portée fixement par le rotor 24 de la machine électrique. These satellites also cooperate in meshing with a sun gear 1 10 which comprises a strip 1 12 toothed externally and carried by a flange 1 14. This flange is fixedly mounted on a tubular shaft 1 1 6, said additional sun gear shaft, which surrounds, freely in rotation but fixedly in translation, the sun gear shaft 42 of the epicyclic motor gear train 26. The free end of the tubular shaft 1 1 6 fixedly carries a gear 1 18 which cooperates with another gear 120 fixedly supported by the rotor 24 of the electric machine.
Les axes de satellites 108 sont portés par un plateau 122 faisant partie du porte-satellites et comportant un palier tubulaire 124 entourant librement en rotation mais fixement en translation l'arbre tubulaire de planétaire 1 1 6. The planet axes 108 are carried by a plate 122 forming part of the planet carrier and comprising a tubular bearing 124 freely rotating around but fixedly in translation the tubular shaft of sun gear 1 1 6.
Ce palier 124 porte fixement une roue dentée 126 qui coopère avec une roue dentée 128 liée à l'essieu-moteur 1 6. Cet ensemble des deux roues dentées forme ainsi une voie de transmission de mouvement entre le train épicycloïdal 96 et l'essieu 16. Ce train épicycloïdal 96 porte également un accouplement à commande contrôlée 130 permettant de relier sa couronne 102, soit au plateau 122, soit à la partie fixe 48 du groupe motopropulseur en fonction du mode d'entraînement souhaité pour le véhicule. Comme mieux visible en plus sur la figure 2, le dispositif de transmission comprend un moyen de liaison à commande contrôlée 132 entre l'arbre creux 42 du planétaire 36 et l'arbre creux 62 de la couronne 54 du train épicycloïdal de moteur 26.  This bearing 124 fixedly bears a toothed wheel 126 which cooperates with a toothed wheel 128 connected to the driving axle 1 6. This set of two toothed wheels thus forms a motion transmission path between the epicyclic gear train 96 and the axle 16. This epicyclic gear train 96 also carries a controlled-control coupling 130 making it possible to connect its crown 102, either to the plate 122 or to the fixed part 48 of the powertrain depending on the drive mode desired for the vehicle. As best seen further in Figure 2, the transmission device comprises a controlled control connection means 132 between the hollow shaft 42 of the sun gear 36 and the hollow shaft 62 of the ring gear 54 of the epicyclic motor gear train 26.
Ce moyen de liaison est ici sous la forme d'au moins un patin radial 134, ici deux patins diamétralement opposés, portés par la paroi circulaire 136 de l'arbre creux 42 de planétaire.  This connection means is here in the form of at least one radial shoe 134, here two diametrically opposed pads, carried by the circular wall 136 of the sun shaft 42 of the sun gear.
Ces patins sont avantageusement de section circulaire et sont portés, à étanchéité, par des alésages 138 traversant de part en part la paroi 136 de l'arbre creux.  These pads are advantageously of circular section and are carried, sealed, by bores 138 passing right through the wall 136 of the hollow shaft.
Les patins présentent une extrémité supérieure 140 en vis-à-vis de la face interne 142 de la paroi 144 de l'arbre 62 avec un profil courbe sensiblement identique au profil de la face 142 en étant avantageusement en une matière de friction ainsi qu'une extrémité inférieure 146 en regard de la chambre creuse 54 et qui peut être soumise à l'action d'une force pour les déplacer en direction de la face interne 142 de la paroi 144. The pads have an upper end 140 vis-à-vis the inner face 142 of the wall 144 of the shaft 62 with a curved profile substantially identical to the profile of the face 142 being advantageously a friction material as well as a lower end 146 facing the hollow chamber 54 and which can be subjected to the action of a force to move them towards the inner face 142 of the wall 144.
Bien entendu et cela sans sortir du cadre de l'invention, ces patins peuvent être entièrement en un matériau de friction.  Of course and without departing from the scope of the invention, these pads may be entirely of a friction material.
Dans l'exemple illustré sur les figures 1 et 2, cette force est générée par la mise sous pression de la chambre 54 par l'intermédiaire d'un dispositif de mise sous pression 147, en particulier hydraulique. In the example illustrated in Figures 1 and 2, this force is generated by pressurizing the chamber 54 by means of a pressurizing device 147, in particular hydraulic.
Pour cela, la cloison d'extrémité 50 de l'arbre 42 est traversée par une conduite 148 d'amenée de fluide sous pression. Avantageusement, ce fluide est l'huile du dispositif de transmission à variation de vitesse ou de lubrification du moteur et l'introduction de ce fluide et sa mise sous pression à l'intérieur de la chambre 54 par la conduite 148 sont commandées par tous moyens connus 149, comme un piston 150 contrôlé par un moyen de commande 152.  For this, the end wall 50 of the shaft 42 is traversed by a conduit 148 for supplying fluid under pressure. Advantageously, this fluid is the oil of the speed transmission or lubrication device of the engine and the introduction of this fluid and its pressurization inside the chamber 54 by the pipe 148 are controlled by any means 149, as a piston 150 controlled by a control means 152.
Bien entendu, tout autre dispositif de mise sous pression à la portée de l'Homme du métier, comme une pompe, par exemple à piston, peut être utilisé.  Of course, any other pressurizing device within the reach of those skilled in the art, such as a pump, for example a piston, may be used.
Lors du fonctionnement du groupe motopropulseur avec le moteur thermique 10, l'un 28 des embrayages est en position embrayée alors que l'autre 30 des embrayages est en position débrayée pour obtenir un rapport de vitesse et le moyen de liaison à commande contrôlée 132 est inopérationnel. During operation of the power train with the engine 10, one of the clutches is in the engaged position while the other one of the clutches is in the disengaged position to obtain a gear ratio and the controlled-control link means 132 is inoperative.
Dans ce cas, la vitesse (et le couple-moteur) provenant de l'arbre-moteur 12 est successivement transmise à l'embrayage 28, à l'arbre creux 42, au planétaire 36, au porte-satellite 64 du train épicycloïdal de moteur, puis à la couronne 102, au porte-satellites 104, aux roues dentées 126 et 128 et à l'essieu-moteur 1 6.  In this case, the speed (and the engine torque) coming from the motor shaft 12 is successively transmitted to the clutch 28, to the hollow shaft 42, to the sun gear 36, to the planet carrier 64 of the epicyclic gear train. motor, then to the ring gear 102, to the planet carrier 104, to the gears 126 and 128 and to the driving axle 1 6.
Dans un autre rapport de vitesse, l'embrayage 28 passe de la position embrayée à la position débrayée et l'embrayage 30 passe de la position débrayée à la position embrayée. In another gear ratio, the clutch 28 moves from the engaged position to the disengaged position and the clutch 30 moves from the disengaged position to the engaged position.
Durant ces déplacements, il se trouve une configuration où aucun des embrayages n'est actif et la vitesse (et le couple-moteur) du moteur n'est retransmise ni à l'arbre creux 42 du planétaire 36, ni à l'arbre creux 62 de la couronne. Ceci entraîne une rupture dans la transmission de vitesse et de couple- moteur et un à-coup lors de la position embrayée de l'embrayage 30. During these movements, there is a configuration where none of the clutches is active and the speed (and engine torque) of the engine is transmitted neither to the hollow shaft 42 of the sun gear 36, nor to the hollow shaft 62 of the crown. This causes a break in the transmission of speed and torque-engine and a jerk in the engaged position of the clutch 30.
Pour remédier à cela, lors du changement de rapport de vitesse, le moyen de liaison à commande contrôlée 132 est activé.  To remedy this, during the change of speed ratio, the controlled control link means 132 is activated.
Pour cela, le moyen de commande 152 active le piston 150 pour qu'il injecte le fluide sous pression dans la chambre 54. Cette mise en pression de la chambre applique une force sur les extrémités inférieures 146 des patins en les poussant vers la paroi interne 142 de l'arbre creux 62.  For this, the control means 152 activates the piston 150 so that it injects the fluid under pressure into the chamber 54. This pressurization of the chamber applies a force on the lower ends 146 of the pads by pushing them towards the inner wall 142 of the hollow shaft 62.
Après contact avec friction des extrémités supérieures 140 des patins, l'arbre 42 de planétaire est lié en rotation avec l'arbre 62 de la couronne et le mouvement de rotation de l'arbre 12 est retransmis aux trains 26 et 96 et à l'essieu.  After frictional contact with the upper ends 140 of the pads, the sun gear shaft 42 is rotatably connected to the shaft 62 of the crown and the rotational movement of the shaft 12 is transmitted back to the trains 26 and 96 and to the axle.
Ainsi, après contact avec friction des extrémités supérieures 140 des patins, l'arbre 42 de planétaire met en mouvement et accélère l'arbre 62 par son énergie cinétique. Par la même, l'arbre 42 ralentit. Lorsque le ralentissement de l'arbre 42 et l'accélération de l'arbre 62 sont initiés, le moyen de liaison à commande contrôlé 132 est alors désactivé et l'embrayage 30 est en position embrayée.  Thus, after frictional contact with the upper ends 140 of the pads, the sun gear shaft 42 moves and accelerates the shaft 62 by its kinetic energy. By the same, the shaft 42 slows down. When the slowing of the shaft 42 and the acceleration of the shaft 62 are initiated, the controlled control linkage 132 is then deactivated and the clutch 30 is in the engaged position.
Ceci permet d'avoir un moyen ponctuel qui ne relie jamais les deux arbres de manière permanente mais se satisfait, par la friction, de transférer l'énergie cinétique de l'arbre en mouvement, voué à s'arrêter, vers l'arbre destiné à se mettre en mouvement.  This makes it possible to have a punctual means which never connects the two trees permanently but is satisfied, by the friction, to transfer the kinetic energy of the moving tree, destined to stop, towards the tree intended to move.
De cette manière, la transition est accélérée et la coupure de couple est limitée tout en étant quasi insaisissable pour le conducteur.  In this way, the transition is accelerated and the torque cut is limited while being almost elusive for the driver.
Le planétaire 36 est alors à l'arrêt alors que la couronne 56 est entraînée en rotation par l'arbre moteur 12 sous la mise en action de l'embrayage 30. The sun gear 36 is then stopped while the ring gear 56 is rotated by the drive shaft 12 under the actuation of the clutch 30.
De ce fait, en diminuant le temps mort (le temps nécessaire pour que l'arbre 62 s'arrête) durant lequel le couple ne peut pas être transmis du moteur vers les roues, la rupture de couple est moins perceptible par le conducteur, mais également, l'énergie nécessaire pour compenser le couple à la roue durant cette transition diminue.  Therefore, by decreasing the dead time (the time required for the shaft 62 to stop) during which the torque can not be transmitted from the motor to the wheels, the torque failure is less noticeable by the driver, but also, the energy required to compensate the torque to the wheel during this transition decreases.
Il est évidemment à la portée de l'homme du métier de paramétrer la durée pendant laquelle ce moyen de liaison est actif ou de prévoir tous moyens, comme des capteurs, pour déterminer les positions débrayées/embrayées des embrayages. It is obviously within the abilities of those skilled in the art to set the duration during which this connection means is active or to provide any means, such as sensors, to determine the disengaged / engaged positions of the clutches.

Claims

REVENDICATIONS
1 ) Groupe motopropulseur de véhicule automobile comportant un moteur thermique (10), un dispositif de transmission de variation de vitesse (14) comprenant un train épicycloïdal de moteur (26) avec un planétaire (36) porté par un arbre creux (42) et une couronne (56) portée par un arbre creux (62) entourant l'arbre creux (42) du planétaire, ledit planétaire et ladite couronne étant reliés chacun à l'arbre (12) du moteur thermique (10) par un accouplement à commande contrôlée (28, 30) et à une partie fixe (48) du véhicule par un accouplement unidirectionnel (32, 34), et une voie de transmission de mouvement (126, 128) à un essieu-moteur (1 6), caractérisé en ce qu'il comprend un moyen de liaison à commande contrôlée (132) entre les deux arbres creux (42, 62). Motor vehicle power train comprising a heat engine (10), a speed variation transmission device (14) comprising an epicyclic motor train (26) with a sun gear (36) carried by a hollow shaft (42) and a ring gear (56) carried by a hollow shaft (62) surrounding the hollow shaft (42) of the sun gear, said sun gear and said ring being each connected to the shaft (12) of the heat engine (10) by a control coupling controlled (28, 30) and to a fixed part (48) of the vehicle by a unidirectional coupling (32, 34), and a motion transmission path (126, 128) to a driving axle (1 6), characterized in that it comprises controlled control linkage means (132) between the two hollow shafts (42, 62).
2) Groupe motopropulseur selon la revendication 1 , caractérisé en ce que le moyen de liaison à commande contrôlée comprend au moins un patin radial (134) logé dans la paroi (136) de l'arbre (42) du planétaire et coopérant avec l'arbre (62) de la couronne. 2) power train according to claim 1, characterized in that the controlled control connection means comprises at least one radial pad (134) housed in the wall (136) of the shaft (42) of the sun gear and cooperating with the shaft (62) of the crown.
3) Groupe motopropulseur selon la revendication 2, caractérisé en ce que le patin (134) comprend une extrémité supérieure (140) avec une surface en un matériau de friction pour la liaison avec l'arbre creux (62) de la couronne. 3) power train according to claim 2, characterized in that the pad (134) comprises an upper end (140) with a surface of a friction material for connection with the hollow shaft (62) of the ring.
4) Groupe motopropulseur selon la revendication 2 ou 3, caractérisé en ce que le patin est logé dans un alésage radial (138) traversant de part en part la paroi (136) de l'arbre (42) et débouchant dans une chambre creuse (54) de l'arbre (42). 4) Power train according to claim 2 or 3, characterized in that the shoe is housed in a radial bore (138) passing right through the wall (136) of the shaft (42) and opening into a hollow chamber ( 54) of the shaft (42).
5) Groupe motopropulseur selon la revendication 4, caractérisé en ce que la chambre creuse (54) est délimitée par au moins une partie de la paroi (136) de l'arbre (42) et deux cloisons transversales (50, 52). 5) Powertrain according to claim 4, characterized in that the hollow chamber (54) is defined by at least a portion of the wall (136) of the shaft (42) and two transverse walls (50, 52).
6) Groupe motopropulseur selon la revendication 4 ou 5, caractérisé en ce que la chambre (54) est raccordée à un dispositif de mise sous pression (147). 7) Groupe motopropulseur selon la revendication 6, caractérisé en ce que le dispositif de mise sous pression (147) comprend une conduite d'amenée de fluide (148) dans la chambre creuse (54) et un dispositif de pression (149). 8) Groupe motopropulseur selon la revendication 7, caractérisé en ce que le dispositif de pression (149) comprend un piston (150) et un dispositif de commande (152) de ce piston. 6) Power train according to claim 4 or 5, characterized in that the chamber (54) is connected to a pressurizing device (147). 7) A power train according to claim 6, characterized in that the pressurizing device (147) comprises a fluid supply line (148) in the hollow chamber (54) and a pressure device (149). 8) Powertrain according to claim 7, characterized in that the pressure device (149) comprises a piston (150) and a control device (152) of the piston.
9) Groupe motopropulseur selon la revendication 7 ou 8, caractérisé en ce que le fluide est l'huile de lubrification. 9) Power train according to claim 7 or 8, characterized in that the fluid is the lubricating oil.
10) Véhicule automobile de type hybride, caractérisé en ce qu'il comprend un groupe motopropulseur selon l'une des revendications précédentes et une machine motrice/génératrice (22). 10) Hybrid automobile vehicle, characterized in that it comprises a powertrain according to one of the preceding claims and a driving machine / generator (22).
EP15753334.0A 2014-10-29 2015-08-11 Power train with a variable-speed transmission and motor vehicle of hybrid type using such a power train Withdrawn EP3212967A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1460407A FR3027981B1 (en) 2014-10-29 2014-10-29 POWERTRAIN WITH A VARIABLE SPEED TRANSMISSION DEVICE AND A HYBRID MOTOR VEHICLE USING SUCH A GROUP.
PCT/EP2015/068493 WO2016066296A1 (en) 2014-10-29 2015-08-11 Power train with a variable-speed transmission and motor vehicle of hybrid type using such a power train

Publications (1)

Publication Number Publication Date
EP3212967A1 true EP3212967A1 (en) 2017-09-06

Family

ID=52450339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15753334.0A Withdrawn EP3212967A1 (en) 2014-10-29 2015-08-11 Power train with a variable-speed transmission and motor vehicle of hybrid type using such a power train

Country Status (5)

Country Link
US (1) US10369876B2 (en)
EP (1) EP3212967A1 (en)
CN (1) CN107074090A (en)
FR (1) FR3027981B1 (en)
WO (1) WO2016066296A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201504469D0 (en) * 2015-03-17 2015-04-29 Qinetiq Ltd Gearing assembly

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889790A (en) * 1973-08-08 1975-06-17 Raymond Lee Organization Inc Gear clutches with selector valve
US5437356A (en) * 1993-10-18 1995-08-01 Hoffco, Inc. Centrifugal clutch
JP4710098B2 (en) * 1999-02-16 2011-06-29 アイシン・エィ・ダブリュ株式会社 Automatic transmission
US6592484B1 (en) * 1999-08-09 2003-07-15 Gregory A. Schultz Transmission gearbox for parallel hybrid electric vehicles
US7198586B2 (en) * 2004-12-10 2007-04-03 Ford Motor Company Transmission having multiple ratio planetary gear unit in series with an auxiliary gear unit
US20080296118A1 (en) * 2007-06-01 2008-12-04 Motive Power Industry Co., Ltd. Clutch of continuous variable transmission system
US8047958B2 (en) * 2009-01-23 2011-11-01 GM Global Technology Operations LLC Multi-speed transmission having two planetary gear sets
FR2955165B1 (en) * 2010-01-14 2012-01-20 Inst Francais Du Petrole SPEED VARIATION TRANSMISSION DEVICE FOR A MOTOR VEHICLE MOTOR CONTROL UNIT AND A HYBRID MOTOR VEHICLE USING SUCH A DEVICE
FR2962697B1 (en) * 2010-07-16 2012-07-13 IFP Energies Nouvelles EPICYCLOIDAL DOUBLE TRAIN POWERTRAIN FOR A HYBRID MOTOR VEHICLE
US8758179B2 (en) * 2012-10-22 2014-06-24 GM Global Technology Operations LLC Electrically-variable transmission for a vehicle

Also Published As

Publication number Publication date
US10369876B2 (en) 2019-08-06
FR3027981B1 (en) 2016-11-11
US20170326961A1 (en) 2017-11-16
WO2016066296A1 (en) 2016-05-06
CN107074090A (en) 2017-08-18
FR3027981A1 (en) 2016-05-06

Similar Documents

Publication Publication Date Title
EP2593320B1 (en) Power train with double planetary gear unit for an hybrid automobile
EP2345828B1 (en) Transmission device with variable ratio for vehicle powertrain and hybrid vehicle using such a transmission
WO2015071088A1 (en) Motor vehicle propulsion unit and motor vehicle
FR2962697A1 (en) Power train for hybrid motor vehicle, has movement transmission track comprising toothed wheels and transmitting movement to powered axle, and additional epicyclic gear train connecting epicyclic drive train to movement transmission track
WO2015185459A1 (en) Speed transmission device for motor vehicles and power train comprising said device
WO2015090876A1 (en) Power train with a variable-speed transmission device, particularly for hybrid vehicle
WO2016066331A1 (en) Speed-transmission device for moving a motor vehicle, notably a motorized at least two-wheeled vehicle, and power train using such a device
WO2016120066A1 (en) Method for controlling a variable-speed transmission device with epicyclic gear trains of a power train, in particular for a hybrid vehicle
EP3212967A1 (en) Power train with a variable-speed transmission and motor vehicle of hybrid type using such a power train
WO2015078645A1 (en) Power train of a vehicle and vehicle
EP3230106B1 (en) Power train for driving a motor vehicle with a variable-speed transmission device having a triple planetary gear set and especially a power train for a hybrid-type vehicle
WO2016087434A1 (en) Speed transmission device for moving a motor vehicle, notably a motorized at least two-wheeled vehicle, and power train using such a device particularly for a hybrid vehicle
WO2018054717A1 (en) Motor vehicle powertrain
WO2015086325A1 (en) Power train with a variable-speed transmission device, in particular for a hybrid vehicle
WO2016091655A1 (en) Power train for driving a motor vehicle with a variable-speed transmission device having a double planetary gear set and especially a power train for a hybrid-type vehicle
FR2975640A1 (en) Power train for hybrid motor vehicle, has movement transmission track comprising toothed wheels and transmitting movement to powered axle, and additional epicyclic gear train connecting epicyclic drive train to movement transmission track
FR3053289B1 (en) HYBRID VEHICLE POWERTRAIN WITH A DEVICE FOR CONNECTING / DISCONNECTING THE ELECTRIC MACHINE
FR3056463B1 (en) EPICYCLOIDAL DOUBLE TRAIN POWERTRAIN OPTIMIZED FOR A HYBRID VEHICLE
FR2837429A1 (en) Hybrid drive for motor vehicle has planetary gearing between electric machine rotor and crankshaft
EP3490831A1 (en) Method for controlling a variable-speed, coaxial planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle
EP3371484A1 (en) Speed transmission device for the movement of an at least two-wheeled motor vehicle, and power train using said speed transmission device
FR2973465A1 (en) Mechanical coupling system for e.g. thermal/electric hybrid traction chain of car, has friction synchronizer comprising dogs engaged with dog ring gear to lock planetary gear train for rotatably securing input and output shafts

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20170529

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: IFP ENERGIES NOUVELLES

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: F16H 3/72 20060101AFI20160511BHEP

Ipc: F16H 63/30 20060101ALI20160511BHEP

Ipc: B60K 6/383 20071001ALI20160511BHEP

Ipc: B60K 6/387 20071001ALI20160511BHEP

Ipc: B60K 6/48 20071001ALI20160511BHEP

Ipc: B60K 6/365 20071001ALI20160511BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200303