EP3490831A1 - Verfahren zur steuerung eines drehzahlvariablen koaxialen planetengetriebes eines antriebsstrangs, insbesondere für ein hybridfahrzeug - Google Patents

Verfahren zur steuerung eines drehzahlvariablen koaxialen planetengetriebes eines antriebsstrangs, insbesondere für ein hybridfahrzeug

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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Withdrawn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
English (en)
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/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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)
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  • Structure Of Transmissions (AREA)
EP17735588.0A 2016-07-29 2017-07-10 Verfahren zur steuerung eines drehzahlvariablen koaxialen planetengetriebes eines antriebsstrangs, insbesondere für ein hybridfahrzeug Withdrawn EP3490831A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1657341A FR3054495B1 (fr) 2016-07-29 2016-07-29 Procede de commande d'un dispositif de transmission a variation de vitesse a trains epicycloidaux coaxiaux d'un groupe motopropulseur, en particulier pour vehicule hybride.
PCT/EP2017/067301 WO2018019557A1 (fr) 2016-07-29 2017-07-10 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

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EP3490831A1 true EP3490831A1 (de) 2019-06-05

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EP17735588.0A Withdrawn EP3490831A1 (de) 2016-07-29 2017-07-10 Verfahren zur steuerung eines drehzahlvariablen koaxialen planetengetriebes eines antriebsstrangs, insbesondere für ein hybridfahrzeug

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2955165B1 (fr) 2010-01-14 2012-01-20 Inst Francais Du Petrole Dispositif de transmission a variation de vitesse pour groupe motopropulseur de vehicule automobile et vehicule automobile hybride utilisant un tel dispositif
FR2962697B1 (fr) 2010-07-16 2012-07-13 IFP Energies Nouvelles Groupe motopropulseur a double train epicycloidal pour vehicule automobile de type hybride
FR3013273B1 (fr) * 2013-11-15 2017-03-17 Ifp Energies Now Groupe motopropulseur pour l'entrainement d'un vehicule automobile, plus particulierement pour un vehicule de type hybride.
FR3020786B1 (fr) * 2014-05-07 2016-05-27 Ifp Energies Now Dispositif de variation de vitesse d'un groupe motopropulseur plus particulierement pour l'entrainement d'un vehicule automobile en particulier de type hybride.
DE102014218610A1 (de) * 2014-09-17 2016-03-17 Zf Friedrichshafen Ag Lastschaltbares Mehrstufengetriebe in Planetenbauweise

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FR3054495B1 (fr) 2018-07-27
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