EP2121364A1 - Dispositif de changement de mode pour transmission a derivation de puissance - Google Patents
Dispositif de changement de mode pour transmission a derivation de puissanceInfo
- Publication number
- EP2121364A1 EP2121364A1 EP08762060A EP08762060A EP2121364A1 EP 2121364 A1 EP2121364 A1 EP 2121364A1 EP 08762060 A EP08762060 A EP 08762060A EP 08762060 A EP08762060 A EP 08762060A EP 2121364 A1 EP2121364 A1 EP 2121364A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmission
- gear
- input
- mode
- synchronizer
- 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- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 77
- 230000008859 change Effects 0.000 claims description 19
- 230000003100 immobilizing effect Effects 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
- F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
- F16H3/728—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path with means to change ratio in the mechanical gearing
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- 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
- 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 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 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 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 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—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 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 assembly or relative disposition of components
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- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- 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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
- F16H2037/102—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts the input or output shaft of the transmission is connected or connectable to two or more differentials
-
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
- F16H2037/104—Power split variators with one end of the CVT connected or connectable to two or more differentials
-
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
- F16H2037/105—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts characterised by number of modes or ranges, e.g. for compound gearing
- F16H2037/106—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts characterised by number of modes or ranges, e.g. for compound gearing with switching means to provide two variator modes or ranges
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- 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
- F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch
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- 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 invention relates to the field of transmission mode change devices, particularly in power bypass transmissions, for motor vehicles.
- a transmission power bypass connecting in parallel the engine to the wheels of the vehicle by two mechanical power transmission channels.
- the described transmission comprises two electrical machines forming an electrical power transmission path by a transformation of mechanical power into electrical power and vice versa.
- One of the mechanical power channels comprises a mode change device.
- This device comprises an epicyclic mode change train of which two inputs of the epicyclic gear train are inserted along said mechanical path.
- the third input of the epicyclic mode change train is connected by a member to either another input or to the transmission case.
- the third input is connected to the housing, so that the speed ratio inserted on the mechanical transmission channel can be adjusted by varying the teeth of the epicyclic mode change train.
- the third input is connected to another input of the same epicyclic gear train, so that it rotates en bloc.
- the speed ratio inserted on the mechanical channel is fixed at the value one.
- the mode change device for power bypass transmission comprises a casing intended to be fixed to the transmission, a three-input epicyclic gear train, a means of immobilizing a first input relative to the housing, operable selectively to establish a first mode of operation of the transmission and a kinematic chain provided with a securing means connecting, when the securing means is actuated, the first input with a second input to establish a second mode of operation of the transmission.
- the kinematic chain comprises at least one meshing between two gears.
- the applicant has realized that for each of the two modes of operation of the transmission, the proportion of power passing through the electrical path is minimal for a given transmission ratio range. This range is where the transmission has the best energy efficiency.
- the applicant has in particular realized that an overall optimization of transmission is to succeed the optimal ratio range for the first mode with the optimal ratio range for the second mode. Thanks to the gear ratio introduced into the drive train between the two inputs of the epicyclic mode shift train, it is possible to adjust each of the modes independently of one another. This makes it possible, by acting on the two pinions of the drive train, to modify the optimum range of the second mode so that it follows the optimum gear ratio for the first mode, without having to act on the other components of the transmission. This may allow, for example, the same transmission to adapt to different engines.
- the first input of the planetary gear train is a satellite carrier, and the second input is a ring gear.
- the securing means comprises a jaw synchronizer.
- the synchronizer is coaxial with the epicyclic gear train.
- the device comprises a countershaft on which is mounted first and second gear wheels and the jaw synchronizer adapted to secure the rotation of the two gear wheels; the first idler gear meshing with a first fixed main gear with respect to the first input; the second idler gear meshing with a second fixed main gear with respect to the second input.
- This kinematic chain has two successive meshes. This further increases the flexibility of the transmission. In addition, it allows to deport the synchronizer, to be operated by a fork, at a location of the transmission more accessible. This is particularly interesting when the components mounted on the axis of the epicyclic mode change train have a large radial size. This is the case for transmissions with transverse implantation on the vehicle, for example when a chain surrounds the crown of the epicyclic mode change train.
- the synchronizer comprises a body movable in translation cooperating with longitudinal splines of the return shaft.
- the first idler gear is fixedly mounted on the idler shaft. This makes it possible to have a particularly compact synchronizer radially.
- the synchronizer is able to synchronize the first idle gear, either to the crankcase only, or to the crankcase and to the second idler gear simultaneously, or to the second idler gear only.
- the transition between the two modes of operation of the transmission is done when the mechanical channel on which is inserted the mode change device has a zero speed. It is then possible to change the transmission ratio inserted on said mechanical channel without causing a jolt on the vehicle. In addition, this allows you to switch from one mode to the other of transmission without at any time the mechanical power transmission path where the mode switching device is inserted is opened.
- the immobilization means directly connects the first inlet to the housing so that components contributing to the drive kinematic chain of the second mode do not transmit torque when the first mode is actuated.
- the Applicant has realized that the torque transmitted by the mechanical way in which the mode changing device is inserted is smaller in the second mode than in the first mode.
- the fact of not using the second mode drivetrain for the first mode makes it possible to reduce the size of the components of this kinematic chain. This makes it possible, for example, to reduce the diameter of the shafts or the width of the teeth, and to reduce the size of the transmission.
- the immobilizing means comprises a sliding guide, guided in axial translation in the housing and a flange fixed to the first input.
- the player is provided with lateral claws capable of cooperating with jaws of the flange.
- the immobilizing means is operable independently of the securing means. This makes it easier to adjust the area of overlap between the two modes. This decreases the mechanical tolerances of the actuators.
- FIG. 1 is an overall diagram of the transmission power bypass according to the invention
- FIG. 2 is a detailed diagram of the transmission showing a device according to one embodiment of the invention
- FIG. 3 is a longitudinal section of the device according to the embodiment of FIG. 2;
- FIG. 4 is a longitudinal section of another embodiment of the invention.
- the power bypass transmission is connected to a heat engine MT, to a first electric machine ME 1, to a second electric machine ME 2 and to wheels 1.
- the transmission itself comprises a shaft of input 2, a first planetary gear G 1, a second epicyclic gear G2 and a mode change device 4, which comprises a third epicyclic gear G3 and a means of immobilization 5 and a securing means 6.
- the transmission comprises also four transmission devices 7, 8, 9 and 10 having a fixed transmission ratio and interposed between the second epicyclic gear G2 and the engine respectively
- Another fixed ratio transmission device 6a is connected in series with the securing means 6 between two inputs of the third epicyclic gear G3.
- the torque transmitted to the input shaft 2 is distributed by a common rotation power combination device 2a, between the transmission device 7 and the first epicyclic gear train G 1.
- the drive couples from the transmission devices 8 and 9 are added by means of a first device of the combination of power to common rotation.
- the transmission has an electrical path, and two mechanical power transmission paths.
- the electrical way comprises the electric machines ME 1 and ME 2.
- a first mechanical path connects the first epicyclic gear G 1 to the first joint rotation power combination device 1 a.
- a second mechanical path connects the second common rotation power combination device 2a to the second epicyclic gear G2.
- the transmission operates at power bypass.
- the power of the heat engine MT is transmitted to the wheels 1 through the mechanical channels as well as the electrical way.
- one of the ME 1 or ME 2 machines operates as an alternator, the other operates as a motor.
- the difference between the electric power supplied by the alternator and that consumed by the power car is stored or supplied by a battery B of the vehicle.
- G l and the transmission device 8 has a given fixed ratio. This configuration corresponds to a first mode of operation of the transmission, suitable for reduced speeds of the vehicle.
- the mode-changing device 4 When the securing means 6 is actuated and the immobilizing means 5 is free, the mode-changing device 4 has another transmission ratio making it possible to operate the power-bypass transmission in an optimized manner for high speeds. vehicle.
- the mode change takes place when no mechanical power passes through the mode changing device 4, that is to say that the three inputs of the third planetary gear G3 are stopped. The instant of the change of mode does not result in any jerk of torque for the vehicle.
- the mode change can take place with jaw systems which have the advantage of being able to be mechanically actuated and do not cause any dispersion of energy once they are in the dogged position.
- the transmission gears are optimized so that during the first mode of operation (immobilization means activated), the proportion of the energy transmitted by the electrical pathway is minimal for a range of transmission ratio between the transmission mode and the transmission mode.
- MT motor and the wheels 1 corresponding to the low speeds of the vehicle. Thanks to this optimization, the transmission presents an infinitely variable ratio while minimizing the energy losses due to the transformation of mechanical energy into electrical energy and vice versa.
- the device 6a makes it possible to introduce a degree of freedom allowing the second mode of operation of the transmission, to optimize the proportion of energy transmitted by the electrical channel for a range of transmission ratio situated in continuity with the optimized range for the transmission. first mode.
- the presence of a fixed ratio transmission device 6a in the mode changing device 4 allows the entire transmission to be optimized from an energy point of view for a very wide transmission ratio range.
- FIG. 2 is a more detailed description of a particular structure for carrying out a power bypass transmission corresponding to FIG. 1.
- the transmission mainly comprises two axes, one comprising the thermal engine MT and the first electric machine ME l and the other comprising the second machine ME2.
- the transmission On the first axis from left to right, the transmission comprises a drive shaft 1 1 of the first electric machine ME 1 around which are rotatably mounted a first hub 12 and a second hub 13.
- An input shaft 14 is equipped with a dynamic damping device 15 connected to the heat engine MT in the axial alignment of the drive shaft 11.
- the first and third epicyclic gears G 1, G 3 are coaxial with the first axis.
- Each of the planetary gear sets G 1, G 3 comprises a sun gear P 1, P 3, satellites S 1 and S 3, a satellite gate PS 1, PS 3 and a ring C 1, C 3.
- the first hub 12 is equipped with a fixed main gear 16, a free main gear 17 and is fixed to the satellite gate PS3.
- the sun gear P3 and the satellite gate PS 1 are fixed on the second hub 13.
- the main free gear 17 is fixed to the ring gear C3 and meshes with a set gear 18 mounted free to rotate on a deflection shaft 19.
- the shaft of referral 19 comprises a double jaw synchronizer 20 and a fixed idler gear 21 meshing with the fixed main gear 16.
- the synchronizer 20 is able to secure the fixed gear 21 or the idler pinion 18 under the action of a fork 22. or with jaw 23 fixed relative to a housing 24 of the transmission.
- the immobilizing means 5 consists of the main pinion 16, the pinion gear 18, the synchronizer 20 and the fixed clutch 23.
- a drive shaft 30 of the second electric machine ME2 and an intermediate shaft 31 are in alignment with one another.
- Two planetary gear trains G2 and G4 coaxial respectively comprise respectively a sun gear P2, P4, satellites S2 and S4, a satellite gate PS2, PS4 and a ring C2, C4.
- the sun gear P4 is mounted on the drive shaft 30.
- a rotatably free wheel 32 comprises the ring members C4 and C2 and is rotatably connected by a chain 33 to the ring gear C3.
- the sun gear P2 is rotated by the intermediate shaft 31 and a wheel 34 connected by a chain 35 to the crown C l.
- the satellite gate PS2 is mounted on a hub 36a free to rotate about the intermediate shaft 31 and connected to the wheels by a differential 36.
- the fixed ratio transmission device 9 is constituted by the epicyclic gear G4 in which the satellite gate PS4 is fixed. This makes it possible to introduce a transmission ratio between the driving shaft of the second electric machine ME2 and the crown
- the first joint rotation power combination device la is a ternary device constituted by the ring gear C2 driven in rotation by the chain 33, by the satellites of the second and fourth planetary gear trains G2 and G4.
- the second common rotation power combination device 2a is a ternary device constituted by the ring C 1 driven in rotation by the shaft input 14, the chain 33 and the satellites of the first epicyclic gear G l.
- any type of common rotation power combination device would be suitable. It suffices that this device consists of a wheel driven in rotation by at least three different means of rotating drive. The speed of rotation is common to the three means and the sum of the torques exerted by the means on the common wheel is zero.
- FIG. 3 illustrates that the synchronization function between the satellite gate PS3 and the ring gear C3 occupies only axially the width of the main gears 16 and 17.
- the idler gear 19 is mounted on two rolling bearings in the housing 24.
- the idler gear 18 is immobilized in translation on the deflection shaft 19 by means of axial thrust bearings 40.
- the shaft 19 is provided with longitudinal grooves 41 acting as a synchronizer body for the synchronizer 20.
- the synchronizer 20 has a sliding device 42 which comprises a guide hub 43 cooperating directly with the splines 41 of the guide shaft 19.
- the player 42 comprises a skirt 44 s extending axially around the shaft 19 and connected on one side to a wheel 45 extending radially and on the other to the guide hub 43.
- the wheel is equipped with a clutch 46 adapted to cooperate, either with jaw 18a of the free sprocket 18, or with the claws 23 fixed to the housing 24.
- the axial distance between the jaw 23 and 18a is less than the axial length of the clutch 46.
- the clutch 46 passes from a position cooperating only with the fixed dog 23, as illustrated in Figure 3, then to a common position where the clutch 46 cooperates simultaneously with the claws 23 and 18a, and finally to a position where the clutch 46 cooperates only with the clutch 18a.
- the skirt 44 of the player 20 surrounds the axial bearing stop 40 and a hub portion of the pinion 18.
- the jaws 46 and 18a can be of a diameter greater than the free radial space between the chain 33 and the shaft 19.
- the skirt 44 allows the fork 22 to be able to move axially in an axial zone situated on the other side of the chain 33 with respect to the
- a flange 50 extends radially outside the satellite gate PS3 and is connected to the portion of the satellite gate PS3 located between the first and third epicyclic gears G1 and G3.
- the flange 50 has at its peripheral portion claws 51.
- a player 53 in the form of a ring surrounds the ring C l of the first epicyclic gear G l.
- the player 53 has axial grooves 52 cooperating with complementary splines of the housing 24.
- the player 53 has jaws 54 extending laterally in the axial direction, so as to cooperate with the peripheral jaws 51 of the flange 50.
- the player 53 can be actuated by a forked system not shown, located in the same axial portion of the transmission as the forks 22, that is to say between the chains 33 and 35.
- the players 53 and 42 are operated not independently of one another, but simultaneously by the same actuator.
- the fact of having deported the blocking means 5 upstream of the kinematic chain linking the PS3 satellite carrier to the crown C3, makes it possible to have main and return gears 16, 17, 18 and 21 of smaller tooth width. because they are subject to a couple to transmit more reduced.
- the wheel 45 may also be narrower, because the clutch 46 must cooperate only with the clutch 18a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Retarders (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0753409A FR2912693B1 (fr) | 2007-02-21 | 2007-02-21 | Dispositif de changement de mode pour transmission a derivation de puissance. |
PCT/FR2008/050208 WO2008104693A1 (fr) | 2007-02-21 | 2008-02-12 | Dispositif de changement de mode pour transmission a derivation de puissance |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2121364A1 true EP2121364A1 (fr) | 2009-11-25 |
Family
ID=38515839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08762060A Withdrawn EP2121364A1 (fr) | 2007-02-21 | 2008-02-12 | Dispositif de changement de mode pour transmission a derivation de puissance |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110059824A1 (fr) |
EP (1) | EP2121364A1 (fr) |
JP (1) | JP2010519477A (fr) |
FR (1) | FR2912693B1 (fr) |
WO (1) | WO2008104693A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2963651B1 (fr) * | 2010-08-05 | 2012-08-17 | Peugeot Citroen Automobiles Sa | Reducteur de vitesse de machine electrique de vehicule hybride equipe d'un dispositif de blocage |
US8939858B2 (en) * | 2011-12-12 | 2015-01-27 | Chrysler Group Llc | Electrically variable drive unit |
US10173514B2 (en) * | 2016-11-01 | 2019-01-08 | GM Global Technology Operations LLC | Planetary axis transfer gearbox |
NO346107B1 (en) * | 2018-08-15 | 2022-02-21 | Brudeli Green Mobility As | Transmission |
CN116424084A (zh) * | 2023-05-24 | 2023-07-14 | 深圳兴康动力总成有限公司 | 一种混合电驱动装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59142546U (ja) * | 1983-03-14 | 1984-09-22 | トヨタ自動車株式会社 | 遊星歯車の切替機構 |
JPS61286651A (ja) * | 1985-06-11 | 1986-12-17 | Yamaha Motor Co Ltd | 内燃機関の動力伝達装置 |
US5447478A (en) * | 1993-03-29 | 1995-09-05 | Eaton Corporation | Auxiliary transmission section |
US5593358A (en) * | 1995-06-01 | 1997-01-14 | New Venture Gear, Inc. | Multi-speed manual transmission with two simple planetary gearsets |
US6793600B2 (en) * | 2001-11-28 | 2004-09-21 | Kazuyoshi Hiraiwa | Powertrain for hybrid electric vehicles |
US7410436B2 (en) * | 2001-12-06 | 2008-08-12 | Van Druten Roell M | Transmission system and method for driving a vehicle |
JP3852416B2 (ja) * | 2003-02-26 | 2006-11-29 | トヨタ自動車株式会社 | ハイブリッド駆動装置の制御装置 |
JP3941058B2 (ja) * | 2003-06-12 | 2007-07-04 | 本田技研工業株式会社 | 駆動装置 |
FR2859669B1 (fr) | 2003-09-12 | 2006-11-24 | Renault Sa | Transmission infiniment variable a derivation de puissance a deux modes de fonctionnement comportant trois trains epicycloidaux |
US7104917B2 (en) * | 2004-09-28 | 2006-09-12 | General Motors Corporation | Countershaft planetary transmissions |
FR2885106B1 (fr) * | 2005-05-02 | 2007-08-10 | Peugeot Citroen Automobiles Sa | Procede de blocage de roues d'un vehicule hybride a l'arret et dispositif de transmission associe |
US7294079B2 (en) * | 2005-08-18 | 2007-11-13 | Gm Global Technology Operations, Inc. | Electrically variable transmission having three planetary gear sets and two fixed interconnections and a stationary interconnection |
-
2007
- 2007-02-21 FR FR0753409A patent/FR2912693B1/fr not_active Expired - Fee Related
-
2008
- 2008-02-12 EP EP08762060A patent/EP2121364A1/fr not_active Withdrawn
- 2008-02-12 JP JP2009550311A patent/JP2010519477A/ja active Pending
- 2008-02-12 US US12/528,109 patent/US20110059824A1/en not_active Abandoned
- 2008-02-12 WO PCT/FR2008/050208 patent/WO2008104693A1/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008104693A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2912693A1 (fr) | 2008-08-22 |
FR2912693B1 (fr) | 2009-08-28 |
JP2010519477A (ja) | 2010-06-03 |
US20110059824A1 (en) | 2011-03-10 |
WO2008104693A1 (fr) | 2008-09-04 |
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