WO2018019559A1 - Method for controlling a variable-speed, triple planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle - Google Patents

Method for controlling a variable-speed, triple planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle Download PDF

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Publication number
WO2018019559A1
WO2018019559A1 PCT/EP2017/067303 EP2017067303W WO2018019559A1 WO 2018019559 A1 WO2018019559 A1 WO 2018019559A1 EP 2017067303 W EP2017067303 W EP 2017067303W WO 2018019559 A1 WO2018019559 A1 WO 2018019559A1
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WO
WIPO (PCT)
Prior art keywords
shaft
machine
train
epicyclic
sun gear
Prior art date
Application number
PCT/EP2017/067303
Other languages
French (fr)
Inventor
Stephane Venturi
Original Assignee
IFP Energies Nouvelles
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 filed Critical IFP Energies Nouvelles
Priority to EP17742207.8A priority Critical patent/EP3490832A1/en
Publication of WO2018019559A1 publication Critical patent/WO2018019559A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—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
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • 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
    • 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
    • F16H2003/445—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the input and the set 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
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three 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
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2069—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using two freewheel mechanism
    • 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
    • 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

Definitions

  • the present invention relates to a method for controlling a speed variation transmission device of a speed variation transmission device of a motor-driven transmission unit, in particular for a hybrid vehicle.
  • a powertrain particularly for a hybrid vehicle.
  • a hybrid vehicle comprises a powertrain which uses, alone or in combination, as a traction / propulsion drive mode, an internal combustion engine with a variable speed transmission device, and / or a driving / receiving machine, such as 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 engine is used to move this vehicle for uses where high driving power and a long operating autonomy are required.
  • such a powertrain of a motor vehicle comprises a heat engine with a shaft connected to a speed variation transmission device comprising an epicyclic gear with a planetary and a connected crown each to the shaft of the heat engine by a controlled-drive coupling and a fixed part of the unit by a one-way automatic coupling, and a planet carrier transmitting the speed variation to the driving axle of the vehicle via a transmission path.
  • this speed variation transmission device comprises an additional epicyclic gear and a motor gear wheel carried by the motor shaft and connecting this shaft to a toothed wheel carried by the additional epicyclic gear.
  • the applicant has further improved this transmission device in particular reducing its size and more particularly at the other epicyclic gear while ensuring a simple and effective control of this transmission.
  • the invention relates to a method for controlling a speed variation transmission device of a powertrain, in particular for a hybrid vehicle, comprising a heat engine, a driving / receiving machine, a device for varying speed comprising an epicyclic motor train with a sun gear and a ring each connected to the motor shaft by a controlled-control coupling and a fixed part of the group by a unidirectional automatic coupling and a planet carrier, a planetary gear train placed on a shaft substantially parallel to the motor shaft and connecting the epicyclic motor train to a motion transmission path to a driving axle, said epicyclic machine train comprising a sun gear, a crown and a satellite carrier, and a train additional epicyclic placed on the shaft being coaxial with the epicyclic machine train, characterized in that blocks the sun gear with the ring gear of the epicyclic machine train to ensure the movement of the vehicle by the machine alone or in association with the engine.
  • a controlled-controlled coupling can be placed between the crown and the sun gear.
  • a controlled-controlled coupling can be placed on the crown shaft.
  • 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, and a speed variation device 14.
  • This group is connected to a driving axle 1 6 which drives the drive wheels 18 of the vehicle, preferably via a differential bridge 20.
  • a driving / receiving machine 22 is associated with this power unit.
  • this driving / receiving machine is an electric machine with a rotor 24 and which is used as an electric motor to drive the wheels of the vehicle or as a receiving machine to generate a current source serving in particular to recharge the batteries.
  • any other type of driving / receiving machine can be used, such as a hydraulic or pneumatic machine.
  • the speed variation device 14 comprises a main epicyclic gear train 26, called the heat engine epicyclic gear train, with two controlled-control couplings 28, 30 and two automatic unidirectional couplings, such as freewheels 32, 34.
  • the epicyclic motor train 26 comprises a sun gear 36 fixedly mounted on a tubular shaft 38, said sun gear shaft, which cap the shaft 12 of the motor being free to rotate but fixed in translation relative thereto.
  • This shaft is supported in a bearing 40 carried by a fixed portion 42 of the powertrain of the vehicle, as the housing of this group, through the unidirectional coupling 32, called planetary freewheel.
  • This train also comprises a ring 44, placed concentrically to the sun gear and connected to a tubular shaft 46, said crown shaft, surrounding the drive shaft 12 while being free in rotation but fixed in translation relative thereto.
  • This ring is connected externally to the fixed part 42 of the powertrain of the vehicle by the unidirectional coupling 34, called crown freewheel.
  • the two freewheels 32 and 34 are placed in such a way that the sun gear 36 and the ring gear 44 can only rotate in the same direction and preferably in the same direction as the motor shaft 12.
  • this epicyclic motor train comprises a planet carrier 48 with advantageously three satellites 50, 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 crown, the sun gear and the satellites are located in the same plane, here in a vertical plane considering the single figure.
  • This planet carrier is carried by a tubular shaft 52, said planet carrier shaft, which surrounds the sun gear shaft 38 by 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.
  • the free end of the shaft of the sun gear 38 carries a controlled-control coupling 28 in the form of a friction disk clutch, said sun gear coupling, controlled by a disengagement actuator 54, here in the form of a lever pivoting on a fixed point of the powertrain between a neutral position (N position) and a disengaged position (position 1).
  • the free end of the crown shaft carries a controlled-control coupling 30 in the form of a single-acting synchronizer, said crown coupling, controlled in displacement by a control means 56 between a neutral position (position N) and an engaged position (position 1).
  • the planet carrier 48 carries an externally toothed wheel 58 and the drive shaft 12 carries an externally toothed wheel 60 whose roles will be explained in the following description.
  • the speed variation device further comprises another epicyclic gear train 62, said epicyclic machine train, and another epicyclic gear train 64, said additional epicyclic machine train.
  • These epicyclic gear trains 62 and 64 are placed on a shaft 66, said machine, substantially parallel to the shaft 12, and which is rotatably carried by the fixed portion 42 of the powertrain.
  • the epicyclic machine train 62 comprises a sun gear 68 fixedly mounted on a tubular shaft 70, said machine sun gear shaft, which comes to surround, freely in rotation but fixedly in translation, the machine shaft 66.
  • This planet shaft carries, at its free end, an externally toothed wheel 71 which cooperates with a toothed wheel 72 carried by the rotor 24 of the machine 22.
  • the sun gear 68 cooperates with a planet carrier 74 with advantageously three satellites 76, in the form of an externally toothed wheel, and carried by a tubular planet carrier shaft 78 surrounding the sun gear shaft.
  • the satellites 76 cooperate in meshing with a ring gear 80 fixedly connected to the machine shaft 66.
  • the planet carrier shaft carries, at its free end, an externally toothed wheel 82 which cooperates with a toothed wheel 84 connected to the drive axle 1 6.
  • the set of two toothed wheels 82 and 84 thus forms a motion transmission path between the machine epicyclic gear train 62 and the axle 1 6.
  • the machine shaft 66 also carries a controlled-control coupling 86 placed between the sun gear 71 and the stationary portion 42.
  • this coupling comprises a synchronizer with two meshing positions (1, 2) and a neutral position (N).
  • This synchronizer is rotatably supported by the machine shaft 66 while being movable in axial translation thereon.
  • This synchronizer is provided to cooperate, either with the fixed part 42 of the powertrain (position 1), or with the sun gear 71 (position 2), or be in the neutral position without being in connection with any of these two elements.
  • the synchronizer is subjected to a control means 88 enabling it to perform its axial translation.
  • This machine shaft also carries a planet carrier 90 which is part of the additional epicyclic gear train 64 which is mounted on this shaft being coaxial with the machine epicyclic gear train 62.
  • the planet carrier 90 comprises three satellites 92, in the form of a gear with external toothing and placed in the same angular interval relative to each other (here at 120 °).
  • the satellites 92 cooperate with a sun gear 94 fixedly mounted on a tubular shaft 96, said additional sun gear shaft, which comes to surround, freely in rotation but fixedly in translation, the machine shaft 66.
  • the free end of this sun gear shaft is carried by a bearing 98 on the fixed part 42 through an automatic unidirectional coupling 100, such as a freewheel.
  • the additional sun gear shaft 96 carries, in the vicinity of its free end, an external toothed wheel 102 which is rotatably mounted on this shaft and which cooperates with the motor shaft gear 60.
  • the additional sun gear shaft 96 also carries a controlled-control coupling 104 for connecting this gear 102 to the additional sun gear shaft.
  • This controlled-control coupling 104 is here a single-acting synchronizer which is placed on the tubular shaft of the sun gear 96 of the additional epicyclic gear train while being fixed in rotation but free in translation.
  • This synchronizer is subjected to the action of a control means 106 which makes it possible to move the synchronizer from a neutral position to an active position (position 1) where this synchronizer is in connection with the toothed wheel 102.
  • the satellites 92 cooperate also with a crown 108 which is carried by a tubular shaft 1 10, said additional crown shaft, which surrounds, freely rotational but fixed in translation, the sun gear shaft 96.
  • This ring carries a gear wheel externally 1 12 which cooperates with the gear wheel 58 of the planet carrier. The operation of this transmission makes it possible to carry out the reports, as indicated in the table below.
  • the above table without the state of the coupling r 86 defines the way to obtain the 7 ratios between the engine and the machine train 62. To obtain these 7 reports, the trains 26 and 64, the three wheels free 32, 34 and 100, as well that the coupling systems 28, 30 and 104 are used. The 7 ratios result from the combination of the states of the couplings 28, 30 and 104 as described in the table above.
  • the three-position coupling 86 serves to change the mode.
  • the coupling 88 When the coupling 88 is in position 1, the crown of the train 62 and the satellite carrier of the train 64 are locked to the housing.
  • This mode corresponds to the pure electric mode on a first report.
  • the machine can be used in driving mode or in generator mode.
  • the central position (neutral position) of the actuator 88 makes it possible to access the e-CVT modes.
  • the e-CVT mode is accessible with each of the reports described in the table above. Which amounts to having 7 e-CVT modes.

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Abstract

The present invention relates to a method for controlling a variable-speed transmission device of a powertrain, in particular for a hybrid vehicle, comprising a heat engine (10), a drivings/driven machine (22), a speed varying device (14) comprising an engine planetary gear set (26) with a sun gear (36) and a ring gear (44), each connected to the engine shaft (12) via a controlled coupling (28, 30) and to a stationary part (42) of the powertrain via a one-way automatic coupling (32, 34) and a planet carrier (48), a machine planetary gear set (62) arranged on a shaft (66) substantially parallel to the engine shaft (12) and connecting the engine planetary gear set (26) to a path (82, 84) for transmitting a movement to a drive axle (16), said machine planetary gear set comprising a sun gear (68), a ring gear (80) and a planet carrier (74), and an additional planetary gear set (64) positioned on the shaft (66) and coaxial with the machine planetary gear set (62). According to the invention, the sun gear (68) and the ring gear (80) of the machine planetary gear set (68) are locked such that the vehicle is moved via the machine (22) alone or in combination with the engine (10).

Description

PROCEDE DE COMMANDE D'UN DISPOSITIF DE TRANSMISSION A VARIATION DE VITESSE A TRIPLE TRAIN EPICYCLOÏDAL D'UN GROUPE MOTOPROPULSEUR, EN PARTICULIER POUR VEHICULE HYBRIDE La présente invention se rapporte à un procédé de commande d'un dispositif de transmission à variation de vitesse d'un groupe motopropulseur, en particulier pour véhicule hybride.  The present invention relates to a method for controlling a speed variation transmission device of a speed variation transmission device of a motor-driven transmission unit, in particular for a hybrid vehicle. a powertrain, particularly for a hybrid vehicle.
Elle concerne plus particulièrement un dispositif de transmission à variation de vitesse à triple train épicycloïdal. Comme cela est déjà connu, un véhicule 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/ou une machine motrice/réceptrice, comme une machine électrique rotative reliée à une source électrique, telle qu'une ou plusieurs batteries.  It relates more particularly to a gear transmission device with triple epicyclic gear. As already known, a hybrid vehicle comprises a powertrain which uses, alone or in combination, as a traction / propulsion drive mode, an internal combustion engine with a variable speed transmission device, and / or a driving / receiving machine, such as 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. This combination has the advantage of optimizing the performance of this vehicle, including reducing emissions of pollutants into the atmosphere and reducing fuel consumption.
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 pour entraîner en déplacement ce véhicule. 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 for drive this vehicle on the move.
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.
Comme cela est déjà connu par la demande de brevet français N° 2 955 1 65 du demandeur, un tel groupe motopropulseur de véhicule automobile comprend un moteur thermique avec un arbre relié à un dispositif de transmission à variation de vitesse comportant un train épicycloïdal 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 groupe par un accouplement automatique unidirectionnel, et un porte-satellites transmettant la variation de vitesse à l'essieu moteur du véhicule par l'intermédiaire d'une voie de transmission. As already known from the French patent application No. 2 955 1 65 of the applicant, such a powertrain of a motor vehicle comprises a heat engine with a shaft connected to a speed variation transmission device comprising an epicyclic gear with a planetary and a connected crown each to the shaft of the heat engine by a controlled-drive coupling and a fixed part of the unit by a one-way automatic coupling, and a planet carrier transmitting the speed variation to the driving axle of the vehicle via a transmission path.
De façon à augmenter la capacité de variation de vitesse lors de l'entraînement du véhicule par la machine électrique, le demandeur a associé, au dispositif de transmission à variation de vitesse du document précité, un autre train épicycloïdal reliant le train épicycloïdal de moteur à la voie de transmission de mouvement à l'essieu moteur de ce véhicule, comme cela est décrit dans la demande de brevet français N° 2 962 697 du demandeur.  In order to increase the speed variation capacity during driving of the vehicle by the electric machine, the applicant associated, with the speed variation transmission device of the aforementioned document, another epicyclic gear train connecting the epicyclic engine gear train to the drive transmission path to the drive axle of this vehicle, as described in the French patent application No. 2,962,697 of the applicant.
Bien que donnant satisfaction, le demandeur a encore amélioré ce dispositif de variation de vitesse en offrant la possibilité d'augmenter le nombre de rapport de vitesse grâce à un dispositif de transmission à variation de vitesse de conception simple et peu coûteuse. Although satisfactory, the applicant has further improved this speed variation device by offering the possibility of increasing the number of gear ratio by means of a speed variation transmission device of simple and inexpensive design.
Pour cela et comme mieux décrit encore dans la demande de brevet français For this and as better described in the French patent application
N° 3 029 855, ce dispositif de transmission de variation de vitesse comprend un train épicycloïdal additionnel ainsi qu'une roue dentée de moteur portée par l'arbre du moteur et reliant cet arbre à une roue dentée portée par le train épicycloïdal additionnel. Le demandeur a encore plus perfectionné ce dispositif de transmission en réduisant notamment son encombrement et plus particulièrement au niveau de l'autre train épicycloïdal tout en assurant une commande simple et efficace de cette transmission. No. 3,029,855, this speed variation transmission device comprises an additional epicyclic gear and a motor gear wheel carried by the motor shaft and connecting this shaft to a toothed wheel carried by the additional epicyclic gear. The applicant has further improved this transmission device in particular reducing its size and more particularly at the other epicyclic gear while ensuring a simple and effective control of this transmission.
A cet effet, l'invention concerne un procédé de commande d'un dispositif de transmission à variation de vitesse d'un groupe motopropulseur, en particulier pour véhicule hybride, comportant un moteur thermique, une machine motrice/réceptrice, un dispositif de variation de vitesse comprenant un train épicycloïdal de moteur avec un planétaire et une couronne reliés chacun à l'arbre de moteur par un accouplement à commande contrôlée et à une partie fixe du groupe par un accouplement automatique unidirectionnel et un porte-satellites, un train épicycloïdal de machine placé sur un arbre sensiblement parallèle à l'arbre de moteur et reliant le train épicycloïdal de moteur à une voie de transmission de mouvement à un essieu moteur, ledit train épicycloïdal de machine comprenant un planétaire, une couronne et un porte satellites, et un train épicycloïdal additionnel placé sur l'arbre en étant coaxial au train épicycloïdal de machine, caractérisé en ce qu'on bloque le planétaire avec la couronne du train épicycloïdal de machine pour assurer le déplacement du véhicule par la machine seule ou en association avec le moteur. For this purpose, the invention relates to a method for controlling a speed variation transmission device of a powertrain, in particular for a hybrid vehicle, comprising a heat engine, a driving / receiving machine, a device for varying speed comprising an epicyclic motor train with a sun gear and a ring each connected to the motor shaft by a controlled-control coupling and a fixed part of the group by a unidirectional automatic coupling and a planet carrier, a planetary gear train placed on a shaft substantially parallel to the motor shaft and connecting the epicyclic motor train to a motion transmission path to a driving axle, said epicyclic machine train comprising a sun gear, a crown and a satellite carrier, and a train additional epicyclic placed on the shaft being coaxial with the epicyclic machine train, characterized in that blocks the sun gear with the ring gear of the epicyclic machine train to ensure the movement of the vehicle by the machine alone or in association with the engine.
On peut placer un accouplement à commande contrôlée) entre la couronne et le planétaire. On peut placer un accouplement à commande contrôlée sur l'arbre de la couronne. A controlled-controlled coupling can be placed between the crown and the sun gear. A controlled-controlled coupling can be placed on the crown shaft.
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 est annexée la figure unique qui est un schéma montrant un dispositif de transmission à variation de vitesse d'un groupe motopropulseur selon l'invention. 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 is appended the single figure which is a diagram showing a variable transmission device. speed of a powertrain according to the invention.
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, et un dispositif de variation de vitesse 14. Ce groupe est relié à un essieu moteur 1 6 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, and a speed variation device 14. This group is connected to a driving axle 1 6 which drives the drive wheels 18 of the vehicle, preferably via a differential bridge 20.
Dans le cadre de l'utilisation pour un véhicule hybride, une machine motrice/réceptrice 22 est associée à ce groupe motopropulseur. In the context of the use for a hybrid vehicle, a driving / receiving machine 22 is associated with this power unit.
Dans l'exemple qui va suivre, cette machine motrice/réceptrice est une machine électrique avec un rotor 24 et qui est utilisée en tant que moteur électrique pour entraîner les roues du véhicule ou en tant que machine réceptrice pour générer une source de courant servant notamment à recharger les batteries. Bien entendu, tout autre type de machine motrice/réceptrice peut être utilisée, comme une machine hydraulique ou pneumatique. In the following example, this driving / receiving machine is an electric machine with a rotor 24 and which is used as an electric motor to drive the wheels of the vehicle or as a receiving machine to generate a current source serving in particular to recharge the batteries. Of course, any other type of driving / receiving machine can be used, such as a hydraulic or pneumatic machine.
Le dispositif de variation de vitesse 14 comprend un train épicycloïdal principal 26, baptisé train épicycloïdal de moteur thermique, avec deux accouplements à commande contrôlée 28, 30 et deux accouplements unidirectionnels automatiques, comme des roues libres 32, 34. The speed variation device 14 comprises a main epicyclic gear train 26, called the heat engine epicyclic gear train, with two controlled-control couplings 28, 30 and two automatic unidirectional couplings, such as freewheels 32, 34.
Plus précisément, le train épicycloïdal de moteur 26 comprend un planétaire 36 monté fixement sur un arbre tubulaire 38, 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. Cet arbre prend appui dans un palier 40 porté par une partie fixe 42 du groupe motopropulseur du véhicule, comme le carter de ce groupe, au travers de l'accouplement unidirectionnel 32, baptisé roue libre planétaire.  More specifically, the epicyclic motor train 26 comprises a sun gear 36 fixedly mounted on a tubular shaft 38, said sun gear shaft, which cap the shaft 12 of the motor being free to rotate but fixed in translation relative thereto. This shaft is supported in a bearing 40 carried by a fixed portion 42 of the powertrain of the vehicle, as the housing of this group, through the unidirectional coupling 32, called planetary freewheel.
Ce train comprend également une couronne 44, placée concentriquement au planétaire et reliée à un arbre tubulaire 46, dit arbre de couronne, venant entourer l'arbre moteur 12 tout en étant libre en rotation mais fixe en translation par rapport à celui-ci. Cette couronne est reliée extérieurement à la partie fixe 42 du groupe motopropulseur du véhicule par l'accouplement unidirectionnel 34, baptisé roue libre couronne.  This train also comprises a ring 44, placed concentrically to the sun gear and connected to a tubular shaft 46, said crown shaft, surrounding the drive shaft 12 while being free in rotation but fixed in translation relative thereto. This ring is connected externally to the fixed part 42 of the powertrain of the vehicle by the unidirectional coupling 34, called crown freewheel.
Bien entendu, les deux roues libres 32 et 34 sont placées de manière telle que le planétaire 36 et la couronne 44 ne puissent tourner que dans le même sens et préférentiellement dans le même sens que l'arbre 12 du moteur. Of course, the two freewheels 32 and 34 are placed in such a way that the sun gear 36 and the ring gear 44 can only rotate in the same direction and preferably in the same direction as the motor shaft 12.
Enfin, ce train épicycloïdal de moteur comprend un porte-satellites 48 avec avantageusement trois satellites 50, 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. Finally, this epicyclic motor train comprises a planet carrier 48 with advantageously three satellites 50, 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, la couronne, le planétaire et les satellites sont situés dans un même plan, ici dans un plan vertical en considérant la figure unique.  For this, the crown, the sun gear and the satellites are located in the same plane, here in a vertical plane considering the single figure.
Ce porte-satellites est porté par un arbre tubulaire 52, dit arbre de porte-satellites, qui vient entourer l'arbre de planétaire 38 en étant libre en rotation sur celui-ci. Les extrémités libres des arbres du planétaire et de la couronne portent chacune un accouplement à commande contrôlée 28 et 30. This planet carrier is carried by a tubular shaft 52, said planet carrier shaft, which surrounds the sun gear shaft 38 by 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.
Comme mieux illustré sur la figure, l'extrémité libre de l'arbre du planétaire 38 porte un accouplement à commande contrôlée 28 sous la forme d'un embrayage à disque de friction, dit accouplement de planétaire, commandé par un actionneur de débrayage 54, ici sous la forme d'un levier basculant sur un point fixe du groupe motopropulseur entre une position neutre (position N) et une position débrayée (position 1 ). L'extrémité libre de l'arbre de couronne porte un accouplement à commande contrôlée 30 sous la forme d'un synchroniseur à simple effet, dit accouplement de couronne, commandé en déplacement par un moyen de commande 56 entre une position neutre (position N) et une position embrayé (position 1 ). As best illustrated in the figure, the free end of the shaft of the sun gear 38 carries a controlled-control coupling 28 in the form of a friction disk clutch, said sun gear coupling, controlled by a disengagement actuator 54, here in the form of a lever pivoting on a fixed point of the powertrain between a neutral position (N position) and a disengaged position (position 1). The free end of the crown shaft carries a controlled-control coupling 30 in the form of a single-acting synchronizer, said crown coupling, controlled in displacement by a control means 56 between a neutral position (position N) and an engaged position (position 1).
Tel que cela est mieux illustré sur la figure, le porte-satellites 48 porte une roue 58 dentée extérieurement et l'arbre moteur 12 porte une roue 60 dentée extérieurement dont les rôles seront explicités dans la suite de la description. As best illustrated in the figure, the planet carrier 48 carries an externally toothed wheel 58 and the drive shaft 12 carries an externally toothed wheel 60 whose roles will be explained in the following description.
Le dispositif de variation de vitesse comprend en outre un autre train épicycloïdal 62, dit train épicycloïdal de machine, et un autre train épicycloïdal 64, dit train épicycloïdal additionnel de machine. The speed variation device further comprises another epicyclic gear train 62, said epicyclic machine train, and another epicyclic gear train 64, said additional epicyclic machine train.
Ces trains épicycloïdaux 62 et 64 sont placés sur un arbre 66, dit de machine, sensiblement parallèlement à l'arbre 12, et qui est porté librement en rotation par la partie fixe 42 du groupe motopropulseur.  These epicyclic gear trains 62 and 64 are placed on a shaft 66, said machine, substantially parallel to the shaft 12, and which is rotatably carried by the fixed portion 42 of the powertrain.
Le train épicycloïdal de machine 62 comprend un planétaire 68 monté fixement sur un arbre tubulaire 70, dit arbre de planétaire de machine, qui vient entourer, librement en rotation mais fixement en translation, l'arbre de machine 66. Cet arbre de planétaire porte, à son extrémité libre, une roue dentée extérieurement 71 qui coopère avec une roue dentée 72 portée par le rotor 24 de la machine 22. The epicyclic machine train 62 comprises a sun gear 68 fixedly mounted on a tubular shaft 70, said machine sun gear shaft, which comes to surround, freely in rotation but fixedly in translation, the machine shaft 66. This planet shaft carries, at its free end, an externally toothed wheel 71 which cooperates with a toothed wheel 72 carried by the rotor 24 of the machine 22.
Le planétaire 68 coopère avec un porte-satellites 74 avec avantageusement trois satellites 76, en forme de roue à denture extérieure, et porté par un arbre tubulaire de porte-satellites 78 entourant l'arbre de planétaire. Les satellites 76 coopèrent à engrènement avec une couronne 80 reliée fixement à l'arbre de machine 66. The sun gear 68 cooperates with a planet carrier 74 with advantageously three satellites 76, in the form of an externally toothed wheel, and carried by a tubular planet carrier shaft 78 surrounding the sun gear shaft. The satellites 76 cooperate in meshing with a ring gear 80 fixedly connected to the machine shaft 66.
L'arbre de porte-satellites porte, à son extrémité libre, une roue dentée extérieurement 82 qui coopère avec une roue dentée 84 liée à l'essieu moteur 1 6.  The planet carrier shaft carries, at its free end, an externally toothed wheel 82 which cooperates with a toothed wheel 84 connected to the drive axle 1 6.
L'ensemble des deux roues dentées 82 et 84 forme ainsi une voie de transmission de mouvement entre le train épicycloïdal de machine 62 et l'essieu 1 6.  The set of two toothed wheels 82 and 84 thus forms a motion transmission path between the machine epicyclic gear train 62 and the axle 1 6.
L'arbre de machine 66 porte également un accouplement à commande contrôlée 86 placé entre la roue dentée de planétaire 71 et la partie fixe 42. The machine shaft 66 also carries a controlled-control coupling 86 placed between the sun gear 71 and the stationary portion 42.
A titre uniquement d'exemple, cet accouplement comprend un synchroniseur avec deux positions d'engrènement (1 , 2) et une position neutre (N). Ce synchroniseur est porté fixement en rotation par l'arbre de machine 66 tout en étant mobile en translation axiale sur celle-ci. Ce synchroniseur est prévu pour coopérer, soit avec la partie fixe 42 du groupe motopropulseur (position 1 ), soit avec la roue dentée de planétaire 71 (position 2), soit être en position neutre sans être en liaison avec aucun de ces deux éléments. Pour cela, le synchroniseur est soumis à un moyen de commande 88 lui permettant de réaliser sa translation axiale.  By way of example only, this coupling comprises a synchronizer with two meshing positions (1, 2) and a neutral position (N). This synchronizer is rotatably supported by the machine shaft 66 while being movable in axial translation thereon. This synchronizer is provided to cooperate, either with the fixed part 42 of the powertrain (position 1), or with the sun gear 71 (position 2), or be in the neutral position without being in connection with any of these two elements. For this, the synchronizer is subjected to a control means 88 enabling it to perform its axial translation.
Cet arbre de machine porte également un porte-satellites 90 qui fait partie du train épicycloïdal additionnel 64 qui est monté sur cet arbre en étant coaxial avec le train épicycloïdal de machine 62. This machine shaft also carries a planet carrier 90 which is part of the additional epicyclic gear train 64 which is mounted on this shaft being coaxial with the machine epicyclic gear train 62.
Le porte-satellites 90 comprend trois satellites 92, en forme de roue à denture extérieure et placés dans un même intervalle angulaire l'un par rapport à l'autre (ici à 120°).  The planet carrier 90 comprises three satellites 92, in the form of a gear with external toothing and placed in the same angular interval relative to each other (here at 120 °).
Les satellites 92 coopèrent avec un planétaire 94 monté fixement sur un arbre tubulaire 96, dit arbre de planétaire additionnel, qui vient entourer, librement en rotation mais fixement en translation, l'arbre de machine 66. L'extrémité libre de cet arbre de planétaire est portée par un palier 98 sur la partie fixe 42 au travers d'un accouplement unidirectionnel automatique 100, comme une roue libre.  The satellites 92 cooperate with a sun gear 94 fixedly mounted on a tubular shaft 96, said additional sun gear shaft, which comes to surround, freely in rotation but fixedly in translation, the machine shaft 66. The free end of this sun gear shaft is carried by a bearing 98 on the fixed part 42 through an automatic unidirectional coupling 100, such as a freewheel.
L'arbre de planétaire additionnel 96 porte, au voisinage de son extrémité libre, une roue dentée extérieure 102 qui est montée libre en rotation sur cet arbre et qui coopère avec la roue dentée d'arbre de moteur 60. L'arbre de planétaire additionnel 96 porte également un accouplement à commande contrôlée 104 permettant de relier cette roue dentée 102 avec l'arbre de planétaire additionnel. The additional sun gear shaft 96 carries, in the vicinity of its free end, an external toothed wheel 102 which is rotatably mounted on this shaft and which cooperates with the motor shaft gear 60. The additional sun gear shaft 96 also carries a controlled-control coupling 104 for connecting this gear 102 to the additional sun gear shaft.
Cet accouplement à commande contrôlée 104 est ici un synchroniseur à simple action qui est placé sur l'arbre tubulaire de planétaire 96 du train épicycloïdal additionnel en étant fixe en rotation mais libre en translation. Ce synchroniseur est soumis à l'action d'un moyen de commande 106 qui permet de déplacer le synchroniseur d'une position neutre à une position active (position 1 ) où ce synchroniseur est en liaison avec la roue dentée 102. Les satellites 92 coopèrent également avec une couronne 108 qui est portée par un arbre tubulaire 1 10, dit arbre de couronne additionnel, qui vient entourer, librement en rotation mais fixement en translation, l'arbre de de planétaire 96. Cette couronne porte une roue dentée extérieurement 1 12 qui coopère avec la roue dentée 58 de porte-satellites. Le fonctionnement de cette transmission, permet de réaliser les rapports, comme cela est indiqué dans le tableau ci-dessous.  This controlled-control coupling 104 is here a single-acting synchronizer which is placed on the tubular shaft of the sun gear 96 of the additional epicyclic gear train while being fixed in rotation but free in translation. This synchronizer is subjected to the action of a control means 106 which makes it possible to move the synchronizer from a neutral position to an active position (position 1) where this synchronizer is in connection with the toothed wheel 102. The satellites 92 cooperate also with a crown 108 which is carried by a tubular shaft 1 10, said additional crown shaft, which surrounds, freely rotational but fixed in translation, the sun gear shaft 96. This ring carries a gear wheel externally 1 12 which cooperates with the gear wheel 58 of the planet carrier. The operation of this transmission makes it possible to carry out the reports, as indicated in the table below.
Figure imgf000009_0001
Figure imgf000009_0001
Le tableau ci-dessus sans l'état de l'accouplement r 86 définit le moyen d'obtenir les 7 rapports entre le moteur thermique et le train de machine 62. Pour obtenir ces 7 rapports, les trains 26 et 64, les trois roues libres 32, 34 et 100, ainsi que les systèmes d'accouplement 28, 30 et 104 sont utilisés. Les 7 rapports découlent de la combinaison des états des accouplements 28, 30 et 104 comme décrit dans le tableau ci-dessus. The above table without the state of the coupling r 86 defines the way to obtain the 7 ratios between the engine and the machine train 62. To obtain these 7 reports, the trains 26 and 64, the three wheels free 32, 34 and 100, as well that the coupling systems 28, 30 and 104 are used. The 7 ratios result from the combination of the states of the couplings 28, 30 and 104 as described in the table above.
L'accouplement à trois positions 86 sert au changement de mode.  The three-position coupling 86 serves to change the mode.
Lorsque l'accouplement 88 est en position 1 , la couronne du train 62 et le porte satellites du train 64 sont bloqués au carter. Ce mode correspond au mode électrique pur sur un premier rapport. Dans ce cas la machine peut être utilisée en mode motrice ou en mode génératrice.  When the coupling 88 is in position 1, the crown of the train 62 and the satellite carrier of the train 64 are locked to the housing. This mode corresponds to the pure electric mode on a first report. In this case the machine can be used in driving mode or in generator mode.
Lorsque l'accouplement 88 est en position 2, le planétaire 68 et la couronne 80 du train 62 sont couplés, tous les arbres du train 62 ont le même régime. Dans ce mode, il est possible, soit d'utiliser la transmission en mode électrique pur sur un second rapport électrique en mode motrice, soit d'utiliser le moteur thermique seul sur un des 7 rapports, soit d'utiliser le groupe motopropulseur en mode hybride parallèle avec un des 7 rapports (7 modes hybride parallèle).  When the coupling 88 is in position 2, the sun gear 68 and the ring 80 of the train 62 are coupled, all the shafts of the train 62 have the same regime. In this mode, it is possible either to use the transmission in pure electric mode on a second electric gear in driving mode, or to use the engine alone on one of the 7 gears, or to use the powertrain in the same mode. parallel hybrid with one of 7 reports (7 parallel hybrid modes).
La position centrale (position neutre) de l'actionneur 88, permet d'accéder aux modes e-CVT. Le mode e-CVT est accessible avec chacun des rapports décrits dans le tableau ci-dessus. Ce qui revient à disposer de 7 modes e-CVT.  The central position (neutral position) of the actuator 88 makes it possible to access the e-CVT modes. The e-CVT mode is accessible with each of the reports described in the table above. Which amounts to having 7 e-CVT modes.
Les avantages procurés par le blocage de la couronne et du planétaire de train 62, résident principalement dans la réalisation de la solution. En effet, cette disposition permet une conception plus compacte et simplifie les contraintes de guidages des arbres du train 62.  The advantages provided by the locking of the crown and the train sun gear 62 reside mainly in the realization of the solution. Indeed, this arrangement allows a more compact design and simplifies the constraints of guidance of the shafts of the train 62.

Claims

REVENDICATIONS
1 ) Procédé de commande d'un dispositif de transmission à variation de vitesse d'un groupe motopropulseur, en particulier pour véhicule hybride, comportant un moteur thermique (10), une machine motrice/réceptrice (22), un dispositif de variation de vitesse (14) comprenant un train épicycloïdal de moteur (26) avec un planétaire (36) et une couronne (44) reliés chacun à l'arbre de moteur (12) par un accouplement à commande contrôlée (28, 30) et à une partie fixe (42) du groupe par un accouplement automatique unidirectionnel (32, 34) et un porte-satellites (48), un train épicycloïdal de machine (62) placé sur un arbre (66) sensiblement parallèle à l'arbre de moteur (12) et reliant le train épicycloïdal de moteur (26) à une voie de transmission de mouvement (82, 84) à un essieu moteur (1 6), ledit train épicycloïdal de machine comprenant un planétaire (68), une couronne (80) et un porte satellites (74), et un train épicycloïdal additionnel (64) placé sur l'arbre (66) en étant coaxial au train épicycloïdal de machine (62), caractérisé en ce qu'on bloque le planétaire (68) avec la couronne (80) du train épicycloïdal de machine (68) pour assurer le déplacement du véhicule par la machine (22) seule ou en association avec le moteur (10). 1) A method for controlling a variable speed transmission device of a powertrain, in particular for a hybrid vehicle, comprising a heat engine (10), a driving / receiving machine (22), a speed variation device Apparatus (14) comprising an epicyclic motor train (26) with a sun gear (36) and a ring gear (44) each connected to the motor shaft (12) by a controlled-control coupling (28, 30) and a part fixed (42) of the group by a unidirectional automatic coupling (32, 34) and a planet carrier (48), an epicyclic machine train (62) placed on a shaft (66) substantially parallel to the motor shaft (12). ) and connecting the epicyclic motor train (26) to a motion transmission path (82, 84) to a drive axle (1 6), said epicyclic machine train comprising a sun gear (68), a ring gear (80) and a satellite carrier (74), and an additional epicyclic train (64) placed on the arbr e (66) being coaxial with the epicyclic machine train (62), characterized in that the sun gear (68) is locked with the ring gear (80) of the epicyclic machine gear train (68) to ensure the movement of the vehicle by the machine (22) alone or in combination with the engine (10).
2) Procédé de commande selon la revendication 1 , caractérisé en ce qu'on place un accouplement à commande contrôlée (86) entre la couronne et le planétaire. 3) Procédé de commande selon la revendication 1 ou 2, caractérisé en ce qu'on place un accouplement à commande contrôlée (86) sur l'arbre (66) de la couronne (80). 2) control method according to claim 1, characterized in that places a controlled control coupling (86) between the ring gear and the sun gear. 3) control method according to claim 1 or 2, characterized in that places a controlled control coupling (86) on the shaft (66) of the ring (80).
PCT/EP2017/067303 2016-07-29 2017-07-10 Method for controlling a variable-speed, triple planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle WO2018019559A1 (en)

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EP17742207.8A EP3490832A1 (en) 2016-07-29 2017-07-10 Method for controlling a variable-speed, triple planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle

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FR1657340 2016-07-29
FR1657340A FR3054494A1 (en) 2016-07-29 2016-07-29 METHOD FOR CONTROLLING AN EPICYCLOIDAL TRIPLE TRAIN VARIATION TRANSMISSION DEVICE OF A MOTOR PULSE GROUP, ESPECIALLY FOR A HYBRID VEHICLE

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2955165A1 (en) 2010-01-14 2011-07-15 Inst Francais Du Petrole SPEED VARIATION TRANSMISSION DEVICE FOR A MOTOR VEHICLE MOTOR CONTROL UNIT AND A HYBRID MOTOR VEHICLE USING SUCH A DEVICE
FR2962697A1 (en) 2010-07-16 2012-01-20 IFP Energies Nouvelles 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
DE102012219125A1 (en) * 2012-10-19 2014-04-24 Zf Friedrichshafen Ag Planetary gear for a hybrid drive of a motor vehicle
FR3013273A1 (en) * 2013-11-15 2015-05-22 IFP Energies Nouvelles POWERTRAIN FOR DRIVING A MOTOR VEHICLE, ESPECIALLY FOR A HYBRID VEHICLE.
FR3029855A1 (en) 2014-12-12 2016-06-17 Ifp Energies Now POWERTRAIN FOR DRIVING A MOTOR VEHICLE WITH AN EPICYCLOIDAL TRIPLE TRAIN VARIATION TRANSMISSION DEVICE AND ESPECIALLY A POWER PLANT FOR A HYBRID VEHICLE.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2955165A1 (en) 2010-01-14 2011-07-15 Inst Francais Du Petrole SPEED VARIATION TRANSMISSION DEVICE FOR A MOTOR VEHICLE MOTOR CONTROL UNIT AND A HYBRID MOTOR VEHICLE USING SUCH A DEVICE
FR2962697A1 (en) 2010-07-16 2012-01-20 IFP Energies Nouvelles 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
DE102012219125A1 (en) * 2012-10-19 2014-04-24 Zf Friedrichshafen Ag Planetary gear for a hybrid drive of a motor vehicle
FR3013273A1 (en) * 2013-11-15 2015-05-22 IFP Energies Nouvelles POWERTRAIN FOR DRIVING A MOTOR VEHICLE, ESPECIALLY FOR A HYBRID VEHICLE.
FR3029855A1 (en) 2014-12-12 2016-06-17 Ifp Energies Now POWERTRAIN FOR DRIVING A MOTOR VEHICLE WITH AN EPICYCLOIDAL TRIPLE TRAIN VARIATION TRANSMISSION DEVICE AND ESPECIALLY A POWER PLANT FOR A HYBRID VEHICLE.

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