• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method for controlling a speed variation transmission device of a powertrain, in particular for a hybrid vehicle, comprising a driving / receiving machine (20), a heat engine (10), a driving device speed variation (14) comprising an epicyclic motor train (24) with a sun gear (34) and a ring gear (46) each connected to the motor shaft (12) by a controlled-control coupling (26, 28) and to a fixed part (44) of the group by a one-way automatic coupling (30, 32) and a planet carrier (52), and a planetary gear train (68) placed on a shaft (70) substantially parallel to the shaft motor (24) to a motion transmission path (94, 96) to a driving axle (16), said train comprising a sun gear (72), a ring gear (86), and a satellite gate (78). According to the invention, the method consists in blocking the sun gear (72) and the ring gear (86) of the machine epicyclic gear train (68) in order to move the vehicle by the machine (20) alone or in association with the motor (10). ).
    公开号:FR3032165A1
    申请号:FR1550722
    申请日:2015-01-30
    公开日:2016-08-05
    发明作者:Stephane Venturi
    申请人:IFP Energies Nouvelles IFPEN；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a method of controlling a speed variation transmission device of a power train, in particular for a hybrid vehicle.
    [0002] 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. This combination has the advantage of optimizing the performance of this vehicle, including reducing emissions of pollutants into the atmosphere and reducing fuel consumption.
    [0003] 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.
    [0004] 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. As already known from the French patent application No. 2 955 165 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 sun gear. and a ring gear each connected to the shaft of the engine by a controlled-controlled coupling and a fixed part of the unit by a unidirectional automatic coupling, and a planet carrier transmitting the speed variation to the driving axle of the vehicle by the intermediate of a transmission path. 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.
    [0005] The applicant has further improved this transmission device in particular reducing its size and more particularly at the other epicyclic gear while ensuring a simple and effective control of this transmission.
    [0006] 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 driving / receiving machine, a heat engine, 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 placed on a shaft substantially parallel to the motor shaft and connecting the epicyclic motor train to a motion transmission path to a driving axle, said train comprising a sun gear, a crown and a planet carrier, characterized in that it consists in blocking the sun gear and the crown of the epicyclic gear train to ensure the movement of the vehicle by the mach ine alone or in combination with the engine. The method may include placing a controlled control coupling between the ring gear and the sun gear. The method may include placing a controlled control coupling on the shaft of the crown.
    [0007] The method may include placing a controlled-control coupling on the toothed ring of the crown. The method may include placing a mating surface on the sun gear. The method may include placing a mating surface on a sail carried by the sun gear. The other features and advantages of the invention will now appear on reading the description which will follow, given solely by way of illustration and without limitation, and to which are appended: FIG. 1 which is a diagram showing a device for speed variation transmission of a powertrain according to the invention; and FIG. 2 which schematically illustrates a variant of FIG. 1. In FIG. 1, the powertrain comprises a heat engine 10, in particular an internal combustion engine. , with a motor shaft 12, here from the crankshaft of this engine, a variable speed transmission device 14 and a drive axle 16 which drives the drive wheels 18 of the vehicle. The power train also includes a prime mover, such as an electric motor 20 with a rotor 22, which can function as an electric drive motor for the vehicle by being connected to a power source, such as batteries ( not shown) or as a generator of electrical energy and more particularly as an alternator for charging these batteries. The speed variation device 14 comprises a main epicyclic gear train 24, called the epicyclic motor gear train, with two controlled-control couplings 26, 28, here in the form of a friction clutch, and two unidirectional automatic couplings, such as wheels. 30, 32. More specifically, the motor epicyclic gear train 24 comprises a sun gear 34 with a strip 36 toothed externally and carried by a hollow shaft 38, said sun gear shaft, to cap the shaft 12 of the engine being free in rotation but fixed in translation with respect thereto. The free end 40 of this shaft is supported in a bearing 42 carried by a fixed portion 44 of the powertrain through the freewheel 32, called the freewheel, which allows the rotation of the sun gear in one direction. This train also comprises a ring 46 with an internally toothed strip 48, placed concentrically to the sun gear, and connected to a hollow shaft 50, said crown shaft, surrounding the hollow shaft 38 of the sun wheel while being free to rotate but fixed in translation with respect to it. This ring is connected externally to the fixed element 44 of the powertrain of the vehicle by the unidirectional coupling 30, called crown freewheel, which only allows the rotation of the ring in one direction. Of course, the two freewheels 30 and 32 are placed in such a way that the sun gear 34 and the ring gear 46 can only rotate in the same direction and preferably in the same direction as the drive shaft 12.
    [0008] Finally, this epicyclic motor train comprises a planet carrier 52 with advantageously three satellites 54, in the form of an externally toothed wheel, placed in the same angular interval with respect to each other (here at 120 °) and meshing with the crown and the sun gear.
    [0009] For this purpose, the ring 48 of the ring, the strip 36 of the sun gear and the satellites 54 are located in the same plane, here in a vertical plane by considering FIG. 1. These satellites are each carried by a horizontal axis 56 while being free in rotation but fixed in translation on it. These satellite axes are connected to a tubular bearing 58, said bearing planet carrier, which surrounds the sun gear shaft 38 being free to rotate thereon. The free ends of the sun gear shafts and the ring gear each carry a controlled-control coupling 26 and 28, preferably a friction clutch each controlled by a lever control 60 and 62. Thus the clutch 26, so-called planetary clutch, allows to couple the sun gear with the drive shaft 12 while the clutch 28, called crown clutch, is intended to couple the ring with this motor shaft. As best seen in FIG. 1, the planet carrier 52 also has an externally toothed additional strip 64 disposed opposite the satellites and which is connected by meshing with an externally toothed connecting strip 66 of another additional epicyclic gear train. 68, called epicyclic machine train. This epicyclic gear train 68 is placed on a fixed shaft 70, substantially parallel to the drive shaft 12. The planetary gear train comprises a sun gear 72 rotatably connected to a tubular shaft 74 surrounding the fixed shaft 70 and comprising a strip 76 toothed externally and carried by a flange. This sun gear cooperates with a planet carrier 78 advantageously comprising three satellites 80, in the form of an externally toothed wheel, carried by satellite axes 82 and placed in the same angular interval with respect to each other (here at 120 °) and meshing with the toothing of the driving strip 84 of the ring gear 86 of the machine epicyclic gear. This ring is carried by a tubular shaft 88 which surrounds the shaft of the sun gear 74. Of course, as for the motor epicyclic gear train 24, the ring of the crown, the toothed ring of the sun gear and the satellites are situated in the same plan, here in a vertical plane considering Figure 1.
    [0010] As best seen in the figure, the planet axes 82 are carried by a sail 90 fixed on a tubular bearing 92 surrounding the fixed shaft 70.
    [0011] This tubular bearing also carries an externally toothed strip 94 which cooperates with another toothed wheel 96 connected to the drive axle 16 thus forming a motion transmission path between the machine epicyclic gear train 68 and the axle 16.
    [0012] Referring to the straight line of FIG. 1, the tubular shaft of sun gear 74 fixedly carries a sail 98 with a gear wheel 100 which cooperates with the rotor 22 of the machine 20, here via a gear wheel 102.
    [0013] The sail 98 also carries a coupling surface 104 which cooperates with a controlled-control coupling 106 carried by the tubular crown shaft 88. This coupling thus makes it possible to connect the crown shaft, either to the sail 98 and consequently to the rotor 22 of the machine 20 and the sun gear shaft 74, either to a fixed coupling surface 108 carried by the fixed portion 44 of the group. Advantageously, this coupling comprises a double-acting synchronizer, called machine synchronizer, with two coupling positions and a neutral position. This synchronizer is fixedly fixed in rotation but freely in translation by the tubular shaft of crown 88 and is designed to cooperate, under the effect of a control means 110, either on the coupling surface 104 of the web 98, or to the fixed part 44 of the power unit by the surface 108.
    [0014] The various configurations of the entire powertrain will now be described, for example, when the machine 20 is used as a prime mover.
    [0015] For this, the two clutches 26 and 28 are inactive and the control means 110 is actuated so as to control the movement of the synchronizer to the position 2.
    [0016] In this position, the synchronizer 106 is engaged with the coupling surface 104 carried by the web 90 with the effect of locking the ring 86 with the sun gear 72.
    [0017] During the rotation of the machine 20, the rotation of its rotor 22 is retransmitted to the 86-planet gear 72 through the toothed wheels 100 and 102. The rotation of this assembly is then transmitted to the planet carrier 78 whose rotation causes rotation of the externally toothed strip 94. This rotation of the strip is retransmitted to the toothed wheel 96 connected to the drive axle 16. In this configuration the vehicle is driven in displacement only under the impulse of the torque of the electric motor (mode electric).
    [0018] This mode of operation can be enhanced by additional power from the motor 10 through the planetary gear train 24 (parallel hybrid mode) while maintaining the synchronizer 106 in position 2.
    [0019] Thus, in the configuration where the two clutches 26 and 28 are placed in the active position under the action of the levers 60 and 62, the rotation of the shaft 12 of the heat engine 10 rotates the ring 46, the sun gear 34 and Consequently, the planet carrier 52 of the motor epicyclic gear train 24. This rotation of the planet carrier is then transmitted to the tubular shaft 88 of the ring gear 74 of the other epicyclic gear train by the strips 64 and 66. The torque that is generated at the planet carrier of the epicyclic motor train is thus added to the tubular shaft 88 to the torque transmitted by the electric motor 20.
    [0020] For the inactive position of the clutch 26 and active clutch 28, the rotation of the shaft 12 of the heat engine 10 rotates the ring 46 which rotates the planet carrier 52, while the rotation of the The planet shaft 38 is locked by the freewheel 32. This rotation of the planet carrier is then transmitted to the tubular shaft 88 of the ring gear 74 of the epicyclic machine train 68 by the cooperation of the strips 64 and 66. the torque that is generated at the planet carrier of the epicyclic motor train is thus added to the tubular shaft 88 to the torque transmitted by the electric motor but with the specificity that the torque transmitted to the tubular shaft 88 of the epicyclic gear train of machine is different from that where clutches 26 and 28 are in active position.
    [0021] For the inactive position of the clutch 28 and active clutch 26, the rotation of the shaft 12 of the heat engine 10 rotates the sun gear 34 while the rotation of the crown shaft 50 is blocked by the wheel free 30. The rotation of the sun gear rotates the planet carrier 52 of the train 24 and the tubular shaft 88 of the ring gear 74 of the epicyclic machine train 68.
    [0022] As previously mentioned, the torque that is generated at the planet carrier of the epicyclic motor train is thus added to the tubular shaft 88 to the torque transmitted by the electric motor. In this configuration, the torque transmitted to the tubular shaft 88 of the machine epicyclic gear is different from that where the clutches 26 and 28 are in the active position and the one in which the clutch 26 is inactive and the clutch 28 is active. . The variant of Figure 2 differs from the example of Figure 1 only by a specific configuration of the epicyclic machine train.
    [0023] This epicyclic gear train 68 'is placed on a fixed shaft 70', free in rotation but fixed in translation and substantially parallel to the drive shaft 12, being carried by two bearings 112 provided on the fixed element 44 of the group.
    [0024] This epicyclic machine train comprises a ring 86 'carried by a crown shaft 88' surrounding the shaft 70 'and carrying the connecting strip 66'. The train also comprises a planet carrier 78 'with advantageously three satellites 80' carried by satellite axes 82 'and meshing with the toothing of the strip 84' of the ring 86 '. The satellite axes 82 'are carried by a plate 114 fixedly connected to the shaft 70'. The satellites also co-operate with a sun gear 72 'which includes a band 76' externally toothed and carried by a flange which is fixedly mounted on the sun gear shaft 74 'which surrounds the shaft 70'. The sun gear shaft 74 'carries a sail 98' provided with a toothed strip 116 cooperating with the toothed wheel 102 'of the rotor 22' of the machine 20 '. This web also includes a mating surface 104 'which cooperates with a controlled-control coupling 106' carried by the toothed strip 84 'of the crown 86'. This coupling thus makes it possible to connect the ring to the web 98 'and consequently to the rotor 22' of the machine 20 'and to the sun gear shaft 74', or to a fixed coupling surface 108 'carried by the part fixed 44 of the group. As in FIG. 1, this coupling advantageously comprises a double-acting synchronizer, called a machine synchronizer, with two coupling positions and a neutral position. This synchronizer is rotatably mounted but freely translatable by the ring 86 'and is designed to cooperate, under the effect of a control means 110', either on the coupling surface 104 'of the web 98' ( position 2), or to the fixed part 44 of the powertrain (position 1) by the surface 108 '. The shaft 70 'also carries a toothed strip 94' carried by a web 118 fixed on this shaft. This strip cooperates with another toothed wheel 96 'connected to the driving axle 16' thus forming a motion transmission path between the epicyclic machine train 68 and the axle 16.
    [0025] As already described in connection with FIG. 1, this variant comprises the same operating modes: electric mode or parallel hybrid mode. This variant thus makes it possible to have an implantation of the machine 20 and the transmission path 94, 96 which can be used according to the vehicle's implementations.
    权利要求:
    Claims (6)
    [0001]
    CLAIMS1) A method for controlling a speed variation transmission device of a powertrain, in particular for a hybrid vehicle, comprising a driving / receiving machine (20), a heat engine (10), a speed variation device Apparatus (14) comprising an epicyclic motor train (24) with a sun gear (34) and a ring gear (46) each connected to the motor shaft (12) by a controlled-control coupling (26, 28) and a part fixed (44) of the group by a unidirectional automatic coupling (30, 32) and a planet carrier (52), and an epicyclic machine train (68) placed on a shaft (70) substantially parallel to the motor shaft ( 12) and connecting the epicyclic motor train (24) to a motion transmission path (94, 96) to a drive axle (16), said train comprising a sun gear (72), a crown (86) and a satellite gate (78), characterized in that it consists in blocking the sun gear (72) and the crown (86) of the machine epicyclic gear train (68) for moving the vehicle by the machine (20) alone or in association with the motor (10).
    [0002]
    2) A control method according to claim 1, characterized in that it consists in placing a controlled control coupling (106, 106 ') between the ring gear and the sun gear.
    [0003]
    3) A control method according to claim 1 or 2, characterized in that it consists in placing a controlled-control coupling (106) on the shaft of the ring.
    [0004]
    4) control method according to claim 1 or 2, characterized in that it consists in placing a controlled-control coupling (106 ') on the toothed strip (84') of the ring (86 ').
    [0005]
    5) A control method according to one of claims 1 to 4, characterized in that it consists in placing a coupling surface (104, 104 ') on the sun gear (72, 72').
    [0006]
    6) A control method according to one of claims 1 to 4, characterized in that it consists in placing a coupling surface (104, 104 ') on a web (98, 98') carried by the sun gear (72 , 72 ').
    类似技术:
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    EP2593320B1|2017-09-06|Power train with double planetary gear unit for an hybrid automobile
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    FR2962697A1|2012-01-20|Power train for hybrid motor vehicle, has movement transmission track comprising toothed wheels and transmitting movement to powered axle, and additional epicyclic gear train connecting epicyclic drive train to movement transmission track
    FR2955165A1|2011-07-15|SPEED VARIATION TRANSMISSION DEVICE FOR A MOTOR VEHICLE MOTOR CONTROL UNIT AND A HYBRID MOTOR VEHICLE USING SUCH A DEVICE
    WO2015090876A1|2015-06-25|Power train with a variable-speed transmission device, particularly for hybrid vehicle
    EP3250843A1|2017-12-06|Method for controlling a variable-speed transmission device with epicyclic gear trains of a power train, in particular for a hybrid vehicle
    WO2016066331A1|2016-05-06|Speed-transmission device for moving a motor vehicle, notably a motorized at least two-wheeled vehicle, and power train using such a device
    FR2995830A1|2014-03-28|DRIVE SYSTEM FOR MOVING A HYBRID VEHICLE
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    WO2015078645A1|2015-06-04|Power train of a vehicle and vehicle
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    FR3021594A1|2015-12-04|SPEED TRANSMISSION DEVICE FOR THE DISPLACEMENT OF A MOTOR VEHICLE, IN PARTICULAR A MOTORIZED VEHICLE WITH TWO WHEELS.
    FR3053289B1|2019-08-09|HYBRID VEHICLE POWERTRAIN WITH A DEVICE FOR CONNECTING / DISCONNECTING THE ELECTRIC MACHINE
    EP3230105A1|2017-10-18|Power train for driving a motor vehicle with a variable-speed transmission device having a double planetary gear set and especially a power train for a hybrid-type vehicle
    WO2018054717A1|2018-03-29|Motor vehicle powertrain
    FR2975640A1|2012-11-30|Power train for hybrid motor vehicle, has movement transmission track comprising toothed wheels and transmitting movement to powered axle, and additional epicyclic gear train connecting epicyclic drive train to movement transmission track
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    FR3056463B1|2019-10-11|EPICYCLOIDAL DOUBLE TRAIN POWERTRAIN OPTIMIZED FOR A HYBRID VEHICLE
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    WO2018019557A1|2018-02-01|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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    WO2015173011A1|2015-11-19|Device for varying the speed of a power train for driving a motor vehicle, especially a hybrid-type motor vehicle
    同族专利:
    公开号 | 公开日
    FR3032165B1|2018-05-25|
    US20180022205A1|2018-01-25|
    CN107206882A|2017-09-26|
    EP3250843A1|2017-12-06|
    WO2016120066A1|2016-08-04|
    JP2018506686A|2018-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102005010210A1|2005-03-05|2006-09-14|Zf Friedrichshafen Ag|Multi-speed transmission|
    FR2962697A1|2010-07-16|2012-01-20|IFP Energies Nouvelles|Power train for hybrid motor vehicle, has movement transmission track comprising toothed wheels and transmitting movement to powered axle, and additional epicyclic gear train connecting epicyclic drive train to movement transmission track|
    WO2015071088A1|2013-11-15|2015-05-21|IFP Energies Nouvelles|Motor vehicle propulsion unit and motor vehicle|
    FR2955165B1|2010-01-14|2012-01-20|Inst Francais Du Petrole|SPEED VARIATION TRANSMISSION DEVICE FOR A MOTOR VEHICLE MOTOR CONTROL UNIT AND A HYBRID MOTOR VEHICLE USING SUCH A DEVICE|
    WO2012007661A1|2010-07-16|2012-01-19|IFP Energies Nouvelles|Power train having a double epicyclic gear train for a hybrid motor vehicle|
    CN103832263B|2014-02-26|2016-09-07|长城汽车股份有限公司|For the power drive system of vehicle and the vehicle with it|FR3029855B1|2014-12-12|2016-12-16|Ifp Energies Now|POWERTRAIN FOR DRIVING A MOTOR VEHICLE WITH AN EPICYCLOIDAL TRIPLE TRAIN VARIATION TRANSMISSION DEVICE AND ESPECIALLY A POWER PLANT FOR A HYBRID VEHICLE.|
    DE112018008201A5|2018-12-14|2021-09-30|Gkn Automotive Limited|Gear arrangement for a hybrid drive|
    WO2021093930A1|2019-11-11|2021-05-20|Gkn Automotive Limited|Transmission arrangement for hybrid drive, and method for controlling a hybrid drive|
    法律状态:
    2016-01-12| PLFP| Fee payment|Year of fee payment: 2 |
    2016-08-05| PLSC| Publication of the preliminary search report|Effective date: 20160805 |
    2017-01-16| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-26| PLFP| Fee payment|Year of fee payment: 4 |
    2020-01-28| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-27| PLFP| Fee payment|Year of fee payment: 7 |
    2022-01-26| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550722|2015-01-30|
    FR1550722A|FR3032165B1|2015-01-30|2015-01-30|METHOD FOR CONTROLLING AN EPICYCLOID TRAIN SPEED VARIATION TRANSMISSION DEVICE OF A MOTOR PULSE GROUP, ESPECIALLY FOR A HYBRID VEHICLE|FR1550722A| FR3032165B1|2015-01-30|2015-01-30|METHOD FOR CONTROLLING AN EPICYCLOID TRAIN SPEED VARIATION TRANSMISSION DEVICE OF A MOTOR PULSE GROUP, ESPECIALLY FOR A HYBRID VEHICLE|
    PCT/EP2016/050532| WO2016120066A1|2015-01-30|2016-01-13|Method for controlling a variable-speed transmission device with epicyclic gear trains of a power train, in particular for a hybrid vehicle|
    EP16700447.2A| EP3250843A1|2015-01-30|2016-01-13|Method for controlling a variable-speed transmission device with epicyclic gear trains of a power train, in particular for a hybrid vehicle|
    US15/547,423| US20180022205A1|2015-01-30|2016-01-13|Method for controlling a variable-speed transmission device with epicyclic gear trains of a power train,in particular for a hybrid vehicle|
    CN201680007816.4A| CN107206882A|2015-01-30|2016-01-13|Method for controlling the particularly variable speed drive with epicyclic train of gears of the power drive system of motor vehicle driven by mixed power|
    JP2017540172A| JP2018506686A|2015-01-30|2016-01-13|Method for controlling a variable speed transmission with an epicyclic gear train, particularly in a powertrain for a hybrid vehicle|
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