EP3490831A1 - Method for controlling a variable-speed, coaxial planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle - Google Patents

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

Info

Publication number
EP3490831A1
EP3490831A1 EP17735588.0A EP17735588A EP3490831A1 EP 3490831 A1 EP3490831 A1 EP 3490831A1 EP 17735588 A EP17735588 A EP 17735588A EP 3490831 A1 EP3490831 A1 EP 3490831A1
Authority
EP
European Patent Office
Prior art keywords
epicyclic
machine
train
sun gear
planetary 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Withdrawn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
EP17735588.0A
Other languages
German (de)
French (fr)
Inventor
Stephane Venturi
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 EP3490831A1 publication Critical patent/EP3490831A1/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Withdrawn legal-status Critical Current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
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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
    • F16H2200/2007—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
    • F16H2200/203—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 of controlling a speed variation transmission device of a powertrain, in particular 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 gear and a ring each connected to the shaft of the heat engine by a controlled-control coupling and to a fixed part of the group by a unidirectional automatic coupling, and a planet carrier transmitting the speed variation to the driving axle of the vehicle via a transmission path.
  • the applicant 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. 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 while reducing its bulk. and ensuring a simple and efficient 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, and an epicyclic gear train.
  • said epicyclic machine train comprising a sun gear, a crown and a satellite carrier, characterized by blocking the sun gear with the crown of the epicyclic gear train to ensure the movement of the vehicle ar the electric machine alone or in combination 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 shaft which carries the crown of the machine epicyclic gear.
  • the powertrain comprises a heat engine 10, in particular an internal combustion engine, with a drive shaft 12, here from the crankshaft of this engine, a speed variation device 14 and a driving axle 1 6 which allows driving the driving wheels 18 of the vehicle, advantageously via a differential bridge 20.
  • the power train also comprises an electric machine 22 with a rotor 24, which can function as an electric drive motor for the vehicle or as a generator of electrical energy and more particularly as an alternator to ensure the charging of the electric motors. batteries (not shown).
  • the speed variation device 14 comprises a main epicyclic gear train 26, called the epicyclic heat engine gear train, with two controlled-control clutches 28, 30 and two automatic unidirectional couplings, such as freewheels 32, 34.
  • the motor epicyclic gear train 26 comprises an externally toothed sun gear 36 and fixedly mounted on a hollow shaft 38, said sun gear shaft, coming to cap the motor shaft 12 while being free to rotate but fixed in translation relative to that -this.
  • the free end of this hollow shaft is continued by a solid shaft 40 which is supported in a bearing 42 carried by a fixed portion 44 of the powertrain of the vehicle, like the housing, through the unidirectional coupling 32, called free wheel planetary.
  • This train also comprises a ring gear 46 placed concentrically to the sun gear and connected to a hollow shaft 48, said crown shaft, surrounding the hollow shaft 38 of the sun wheel while being free in rotation but fixed in translation relative thereto.
  • This ring is connected externally to the fixed portion 44 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 ring gear and the sun gear can rotate only in the same direction and preferably in the same direction as the motor shaft 12.
  • this epicyclic motor train comprises a planet carrier 50 with advantageously three satellites 52, 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 figure.
  • satellites are carried by a vertical wall 54 connected to a tubular shaft 56, said planet carrier shaft, which surrounds the full shaft of sun gear 40 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 friction clutch, controlled by a disengaging actuator 58, 60, here in the form of a lever pivoting on a fixed point of the power train between an engaged position (Position N) and a disengaged position (Position 1).
  • a disengaging actuator 58, 60 here in the form of a lever pivoting on a fixed point of the power train between an engaged position (Position N) and a disengaged position (Position 1).
  • the vertical wall 54 of the planet carrier 50 continues on its periphery by a horizontally toothed horizontal strip 62 which is carried by the planet carrier shaft 56.
  • This strip forms the crown of another additional epicyclic train 64, referred to in the following description epicyclic train electric machine.
  • This epicyclic machine train 64 is placed coaxially with the epicyclic engine gear train 26 by surrounding the solid planet shaft 40.
  • This train also comprises a planet carrier 66 with advantageously three satellites 68, in the form of an externally toothed wheel, meshing with the toothing of the ring gear 62.
  • satellites also cooperate in meshing with a sun gear 70 fixedly mounted on a tubular shaft 72, said additional sun gear shaft, which surrounds, freely rotating but fixedly in translation, the planet carrier shaft 56 which is also the shaft
  • the free end of the tubular shaft 72 securely carries a toothed wheel 74 which cooperates with another gear wheel 76 fixedly supported by the rotor 24 of the electric machine 22.
  • the ring 62, the satellites 68 and the sun gear 70 are located in the same plane, here in a vertical plane considering the single figure.
  • the axes of the satellites 68 are carried by a vertical plate 78 connected to a tubular shaft of planet carrier 80 freely rotating, but fixedly in translation, the tubular shaft of sun gear 72.
  • This tubular planet carrier shaft 80 fixedly carries a toothed wheel 82 which cooperates with a toothed wheel 84 connected to the drive axle 16. This set of two toothed wheels thus forms a motion transmission path between the epicyclic machine train 64 and the axle 1 6.
  • the epicyclic machine train 64 also comprises a controlled-control coupling 86 enabling its ring 62 to be connected either to the sun gear shaft 72 with the sun gear 70 and the toothed wheel 74, or to the fixed part 44 of the power unit.
  • this coupling is placed on the free end of the planet carrier shaft 56.
  • this coupling comprises a synchronizer with two meshing positions (1, 2) and a neutral position (N).
  • This synchronizer is rotatably supported by the planet carrier shaft 56 while being movable in axial translation thereon.
  • This synchronizer is designed to cooperate, either with the fixed part 44 of the power unit (position 1), or with the sun gear shaft 72 with the sun gear 74 (position 2), or be in position. neutral position without being connected to any of these two elements.
  • the synchronizer is subjected to a control means 88 enabling it to perform its axial translation.
  • the table above, without the state of the actuator, 86 defines the means of obtaining the 3 ratios between the heat engine and the machine epicyclic train 64. To obtain these 3 ratios, the train 26, the two wheels free 32 and 34, and the coupling 28 and 30 are used. The 3 ratios are derived from the combination of states of couplings 28 and 30 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 64 and the planet carrier of the epicyclic gear train 26 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 coupling 88 When the coupling 88 is in position 2, the sun gear 70 and the ring gear 62 of the epicyclic gear train 64 are coupled, all the shafts of the train 64 have the same speed. 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 heat engine alone on one of the 3 gears, or to use the powertrain in the same mode.
  • parallel hybrid with one of the 3 ratios (3 parallel hybrid modes).
  • 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 3 e-CVT modes.

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  • 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)

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 driving/driven machine (22), a speed varying device (14) comprising an engine planetary gear set (26) with a sun gear (36) and a ring gear (46), each connected to the engine shaft (12) via a controlled coupling (28, 30) and to a stationary part (44) of the powertrain via a one-way automatic coupling (32, 34) and a planet carrier (50), and a machine planetary gear set (64) arranged concentrically with the engine planetary gear set 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 (70), a ring gear (62) and a planet carrier (74). According to the invention, the sun gear (70) is locked with the ring gear (62) of the machine planetary gear set (68) such that the vehicle is moved via the electrical machine (22) alone or in combination with the engine (10).

Description

PROCEDE DE COMMANDE D'UN DISPOSITIF DE TRANSMISSION A VARIATION DE VITESSE A TRAINS EPICYCLOÏDAUX COAXIAUX 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.  METHOD FOR CONTROLLING A SPEED VARIATION TRANSMISSION DEVICE WITH COAXIAL EPICYCLOID TRAINS OF A MOTORIZING GROUP, ESPECIALLY FOR A HYBRID VEHICLE The present invention relates to a method of controlling a speed variation transmission device of a powertrain, in particular for a hybrid vehicle.
Elle concerne plus particulièrement un dispositif de transmission à variation de vitesse à trains épicycloïdaux coaxiaux. 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 transmission device with a speed variation with coaxial epicyclic gear trains. 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 gear and a ring each connected to the shaft of the heat engine by a controlled-control coupling and to a fixed part of the group by a unidirectional 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. 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 tout en réduisant son encombrement et en assurant une commande simple et efficace de cette 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, et un train épicycloïdal de machine placé concentriquement au train épicycloïdal de moteur et reliant le train épicycloïdal de moteur à une voie de transmission de mouvement vers un essieu moteur, ledit train épicycloïdal de machine comprenant un planétaire, une couronne et un porte satellites, 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 électrique seule ou en association avec le moteur).  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. 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 while reducing its bulk. and ensuring a simple and efficient control of this transmission. 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, and an epicyclic gear train. machine concentrically placed to the epicyclic motor train 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, characterized by blocking the sun gear with the crown of the epicyclic gear train to ensure the movement of the vehicle ar the electric machine alone or in combination 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 qui porte la couronne du train épicycloïdal de machine. A controlled-controlled coupling can be placed between the crown and the sun gear. A controlled-controlled coupling can be placed on the shaft which carries the crown of the machine epicyclic gear.
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 unique, 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 variation de vitesse 14 et 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 the single figure, the powertrain comprises a heat engine 10, in particular an internal combustion engine, with a drive shaft 12, here from the crankshaft of this engine, a speed variation device 14 and a driving axle 1 6 which allows driving the driving wheels 18 of the vehicle, advantageously via a differential bridge 20.
Le groupe motopropulseur comprend également une machine électrique 22 avec un rotor 24, qui peut fonctionner en tant que moteur électrique d'entraînement pour le véhicule ou en tant que générateur d'énergie électrique et plus particulièrement en tant qu'alternateur pour assurer la charge des batteries (non représentées). The power train also comprises an electric machine 22 with a rotor 24, which can function as an electric drive motor for the vehicle or as a generator of electrical energy and more particularly as an alternator to ensure the charging of the electric motors. batteries (not shown).
Le dispositif de variation de vitesse 14 comprend un train épicycloïdal principal 26, baptisé train épicycloïdal de moteur thermique, avec deux embrayages 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 epicyclic heat engine gear train, with two controlled-control clutches 28, 30 and two automatic unidirectional couplings, such as freewheels 32, 34.
Plus précisément, le train épicycloïdal de moteur 26 comprend un planétaire denté extérieurement 36 et monté fixement sur un arbre creux 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. L'extrémité libre de cet arbre creux se continue par un arbre plein 40 qui prend appui dans un palier 42 porté par une partie fixe 44 du groupe motopropulseur du véhicule, comme le carter, au travers de l'accouplement unidirectionnel 32, baptisé roue libre planétaire.  More specifically, the motor epicyclic gear train 26 comprises an externally toothed sun gear 36 and fixedly mounted on a hollow shaft 38, said sun gear shaft, coming to cap the motor shaft 12 while being free to rotate but fixed in translation relative to that -this. The free end of this hollow shaft is continued by a solid shaft 40 which is supported in a bearing 42 carried by a fixed portion 44 of the powertrain of the vehicle, like the housing, through the unidirectional coupling 32, called free wheel planetary.
Ce train comprend également une couronne dentée 46 placée concentriquement au planétaire et reliée à un arbre creux 48, dit arbre de couronne, venant entourer l'arbre creux 38 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 44 du groupe motopropulseur du véhicule par l'accouplement unidirectionnel 34, baptisé roue libre couronne. Bien entendu, les deux roues libres 32 et 34 sont placées de manière telle que la couronne et le planétaire ne puissent tourner que dans le même sens et préférentiellement dans le même sens que l'arbre 12 du moteur. This train also comprises a ring gear 46 placed concentrically to the sun gear and connected to a hollow shaft 48, said crown shaft, surrounding the hollow shaft 38 of the sun wheel while being free in rotation but fixed in translation relative thereto. This ring is connected externally to the fixed portion 44 of the powertrain of the vehicle by the unidirectional coupling 34, called crown freewheel. Of course, the two freewheels 32 and 34 are placed in such a way that the ring gear and the sun gear can rotate only 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 50 avec avantageusement trois satellites 52, 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 50 with advantageously three satellites 52, 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.  For this, the crown, the sun gear and the satellites are located in the same plane, here in a vertical plane considering the figure.
Ces satellites sont portés par une paroi verticale 54 reliée à un arbre tubulaire 56, dit arbre de porte-satellites, qui vient entourer l'arbre plein de planétaire 40 en étant libre en rotation sur celui-ci.  These satellites are carried by a vertical wall 54 connected to a tubular shaft 56, said planet carrier shaft, which surrounds the full shaft of sun gear 40 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 friction, commandé par un actionneur de débrayage 58, 60, ici sous la forme d'un levier basculant sur un point fixe du groupe motopropulseur entre une position embrayée (Position N) et une position débrayée (Position 1 ). The free ends of the shafts of the sun gear and the ring each carry a controlled-control coupling 28 and 30, preferably a friction clutch, controlled by a disengaging actuator 58, 60, here in the form of a lever pivoting on a fixed point of the power train between an engaged position (Position N) and a disengaged position (Position 1).
Comme mieux illustré sur la figure, la paroi verticale 54 du porte-satellites 50 se poursuit sur sa périphérie par un bandeau horizontal 62 denté intérieurement qui est porté par l'arbre de porte-satellites 56. Ce bandeau forme la couronne d'un autre train épicycloïdal additionnel 64, dénommé dans la suite de la description train épicycloïdal de machine électrique. As best illustrated in the figure, the vertical wall 54 of the planet carrier 50 continues on its periphery by a horizontally toothed horizontal strip 62 which is carried by the planet carrier shaft 56. This strip forms the crown of another additional epicyclic train 64, referred to in the following description epicyclic train electric machine.
Ce train épicycloïdal de machine 64 est placé coaxialement au train épicycloïdal de moteur thermique 26 en entourant l'arbre plein de planétaire 40. Ce train comprend aussi un porte-satellites 66 avec avantageusement trois satellites 68, en forme de roue à denture extérieure, engrenant avec la denture de la couronne 62. This epicyclic machine train 64 is placed coaxially with the epicyclic engine gear train 26 by surrounding the solid planet shaft 40. This train also comprises a planet carrier 66 with advantageously three satellites 68, in the form of an externally toothed wheel, meshing with the toothing of the ring gear 62.
Ces satellites coopèrent également à engrènement avec un planétaire 70 monté fixement sur un arbre tubulaire 72, dit arbre de planétaire additionnel, qui vient entourer, librement en rotation mais fixement en translation, l'arbre de porte-satellites 56 qui est aussi l'arbre de la couronne 62. L'extrémité libre de l'arbre tubulaire 72 porte fixement une roue dentée 74 qui coopère avec une autre roue dentée 76 portée fixement par le rotor 24 de la machine électrique 22.  These satellites also cooperate in meshing with a sun gear 70 fixedly mounted on a tubular shaft 72, said additional sun gear shaft, which surrounds, freely rotating but fixedly in translation, the planet carrier shaft 56 which is also the shaft The free end of the tubular shaft 72 securely carries a toothed wheel 74 which cooperates with another gear wheel 76 fixedly supported by the rotor 24 of the electric machine 22.
Bien entendu, comme pour le train épicycloïdal de moteur thermique 26, la couronne 62, les satellites 68 et le planétaire 70 sont situés dans un même plan, ici dans un plan vertical en considérant la figure unique. Of course, as for the epicyclic engine gear 26, the ring 62, the satellites 68 and the sun gear 70 are located in the same plane, here in a vertical plane considering the single figure.
Les axes des satellites 68 sont portés par un plateau vertical 78 relié à un arbre tubulaire de porte-satellites 80 entourant librement en rotation mais fixement en translation l'arbre tubulaire de planétaire 72. The axes of the satellites 68 are carried by a vertical plate 78 connected to a tubular shaft of planet carrier 80 freely rotating, but fixedly in translation, the tubular shaft of sun gear 72.
Cet arbre tubulaire de porte-satellites 80 porte fixement une roue dentée 82 qui coopère avec une roue dentée 84 liée à l'essieu moteur 16. Cet ensemble des deux roues dentées forme ainsi une voie de transmission de mouvement entre le train épicycloïdal de machine 64 et l'essieu 1 6.  This tubular planet carrier shaft 80 fixedly carries a toothed wheel 82 which cooperates with a toothed wheel 84 connected to the drive axle 16. This set of two toothed wheels thus forms a motion transmission path between the epicyclic machine train 64 and the axle 1 6.
Le train épicycloïdal de machine 64 comprend également un accouplement à commande contrôlée 86 permettant de relier sa couronne 62, soit à l'arbre de planétaire 72 avec le planétaire 70 et la roue dentée 74, soit à la partie fixe 44 du groupe motopropulseur. The epicyclic machine train 64 also comprises a controlled-control coupling 86 enabling its ring 62 to be connected either to the sun gear shaft 72 with the sun gear 70 and the toothed wheel 74, or to the fixed part 44 of the power unit.
De manière avantageuse, cet accouplement est placé sur l'extrémité libre de l'arbre de porte-satellites 56.  Advantageously, this coupling is placed on the free end of the planet carrier shaft 56.
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 porte-satellites 56 tout en étant mobile en translation axiale sur celle-ci. Ce synchroniseur est prévu pour coopérer, soit avec la partie fixe 44 du groupe motopropulseur (position 1 ), soit avec l'arbre de planétaire 72 avec la roue dentée de planétaire 74 (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 planet carrier shaft 56 while being movable in axial translation thereon. This synchronizer is designed to cooperate, either with the fixed part 44 of the power unit (position 1), or with the sun gear shaft 72 with the sun gear 74 (position 2), or be in position. neutral position without being connected to any of these two elements. For this, the synchronizer is subjected to a control means 88 enabling it to perform its axial translation.
Le fonctionnement de cette transmission, permet de réaliser les rapports, comme cela est indiqué dans le tableau ci-dessous. The operation of this transmission makes it possible to carry out the reports, as indicated in the table below.
Le tableau ci-dessus, sans l'état de l'actionneur, 86 définit le moyen d'obtenir les 3 rapports entre le moteur thermique et le train épicycloïdal de machine 64. Pour obtenir ces 3 rapports, le train 26, les deux roues libres 32 et 34, ainsi que les d'accouplement 28 et 30 sont utilisés. Les 3 rapports découlent de la combinaison des états des accouplements 28 et 30 comme décrit dans le tableau ci-dessus. The table above, without the state of the actuator, 86 defines the means of obtaining the 3 ratios between the heat engine and the machine epicyclic train 64. To obtain these 3 ratios, the train 26, the two wheels free 32 and 34, and the coupling 28 and 30 are used. The 3 ratios are derived from the combination of states of couplings 28 and 30 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 64 et le porte satellites du train épicycloïdal 26 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 64 and the planet carrier of the epicyclic gear train 26 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 70 et la couronne 62 du train épicycloïdal 64 sont couplés, tous les arbres du train 64 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 3 rapports, soit d'utiliser le groupe motopropulseur en mode hybride parallèle avec un des 3 rapports (3 modes hybride parallèle). 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 3 modes e-CVT. When the coupling 88 is in position 2, the sun gear 70 and the ring gear 62 of the epicyclic gear train 64 are coupled, all the shafts of the train 64 have the same speed. 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 heat engine alone on one of the 3 gears, or to use the powertrain in the same mode. parallel hybrid with one of the 3 ratios (3 parallel hybrid modes). 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 3 e-CVT modes.
Les avantages procurés par le blocage de la couronne et du planétaire de train 64, 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 64.  The advantages provided by the locking of the ring gear and sun gear 64 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 64.

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 (46) reliés chacun à l'arbre de moteur (12) par un accouplement à commande contrôlée (28, 30) et à une partie fixe (44) du groupe par un accouplement automatique unidirectionnel (32, 34) et un porte- satellites (50), et un train épicycloïdal de machine (64) placé concentriquement au train épicycloïdal de moteur et reliant le train épicycloïdal de moteur (26) à une voie de transmission de mouvement (82, 84) vers un essieu moteur (1 6), ledit train épicycloïdal de machine comprenant un planétaire (70), une couronne (62) et un porte satellites (66), caractérisé en ce qu'on bloque le planétaire (70) avec la couronne (62) du train épicycloïdal de machine (64) pour assurer le déplacement du véhicule par la machine électrique (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 (46) each connected to the motor shaft (12) by a controlled-control coupling (28, 30) and a part fixed (44) of the group by a unidirectional automatic coupling (32, 34) and a planet carrier (50), and an epicyclic machine train (64) concentrically placed on the epicyclic motor train 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 (70), a ring gear (62) and a planet carrier (66), characterized in that that the sun gear (70) is locked with the crown (6 2) of the epicyclic machine train (64) for moving the vehicle by the electric machine (22) alone or in association with the motor (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. 2) control method according to claim 1, characterized in that places a controlled control coupling (86) between the ring gear and the sun gear.
Procédé de commande selon la revendication 1 ou 2, caractérisé en ce qu'on place un accouplement à commande contrôlée (86) sur l'arbre (56) qui porte la couronne (62) du train épicycloïdal de machine. Control method according to claim 1 or 2, characterized in that places a controlled-control coupling (86) on the shaft (56) which carries the ring gear (62) of the machine epicyclic gear.
EP17735588.0A 2016-07-29 2017-07-10 Method for controlling a variable-speed, coaxial planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle Withdrawn EP3490831A1 (en)

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FR1657341A FR3054495B1 (en) 2016-07-29 2016-07-29 METHOD FOR CONTROLLING A SPEED VARIATION TRANSMISSION DEVICE WITH COAXIAL EPICYCLOID TRAINS OF A MOTOR PULSE GROUP, ESPECIALLY FOR A HYBRID VEHICLE
PCT/EP2017/067301 WO2018019557A1 (en) 2016-07-29 2017-07-10 Method for controlling a variable-speed, coaxial planetary gear set transmission device of a powertrain, in particular for a hybrid vehicle

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FR2962697B1 (en) 2010-07-16 2012-07-13 IFP Energies Nouvelles EPICYCLOIDAL DOUBLE TRAIN POWERTRAIN FOR A HYBRID MOTOR VEHICLE
FR3013273B1 (en) * 2013-11-15 2017-03-17 Ifp Energies Now POWERTRAIN FOR DRIVING A MOTOR VEHICLE, ESPECIALLY FOR A HYBRID VEHICLE.
FR3020786B1 (en) * 2014-05-07 2016-05-27 Ifp Energies Now DEVICE FOR VARYING THE SPEED OF A MOTORPOWER GROUP PARTICULARLY FOR DRIVING A MOTOR VEHICLE, ESPECIALLY OF THE HYBRID TYPE.
DE102014218610A1 (en) * 2014-09-17 2016-03-17 Zf Friedrichshafen Ag Power-shiftable multi-speed transmission in planetary design

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