EP1861272A1 - Dispositif de transmission de puissance entre une sortie d'un moteur thermique et un arbre de roues et procede de transmission de puissance associe - Google Patents
Dispositif de transmission de puissance entre une sortie d'un moteur thermique et un arbre de roues et procede de transmission de puissance associeInfo
- Publication number
- EP1861272A1 EP1861272A1 EP06726260A EP06726260A EP1861272A1 EP 1861272 A1 EP1861272 A1 EP 1861272A1 EP 06726260 A EP06726260 A EP 06726260A EP 06726260 A EP06726260 A EP 06726260A EP 1861272 A1 EP1861272 A1 EP 1861272A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- machine
- trains
- mode
- output
- 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- Withdrawn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
Classifications
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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
- 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 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 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 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 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
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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
- 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 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 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 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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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
- F16H37/0833—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 with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—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 with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/0866—Power-split transmissions with distributing differentials, with the output of the CVT connected or connectable to the output shaft
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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
- F16H37/0833—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 with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—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 with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/088—Power-split transmissions with summing differentials, with the input of the CVT connected or connectable to the input shaft
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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
- F16H2037/103—Power-split transmissions with each end of a CVT connected or connectable to a planetary gear set having four or more connections, e.g. a Ravigneaux set
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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
- F16H2037/105—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
- F16H2037/107—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 three 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
- F16H2200/202—Transmissions using gears with orbital motion characterised by the type of Ravigneaux set
- F16H2200/2023—Transmissions using gears with orbital motion characterised by the type of Ravigneaux set using a Ravigneaux set with 4 connections
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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
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Definitions
- the present invention relates to a power transmission device between an output of a heat engine and a wheel shaft, and an associated power transmission method.
- the invention particularly aims to increase the compactness of such a device.
- the invention finds a particularly advantageous application in the field of hybrid motor vehicles, but it could also be used with other types of hybrid-powered land vehicles.
- Transmission devices for hybrid vehicles which comprise a heat engine, two electrical machines, and one, two or more epicyclic gear trains connected to each other within a mechanical assembly.
- An example of such a device is described in French patent application FR-A-2832357. With such transmission devices, the power of the engine can be either transmitted directly to the wheels, or derived through an electrical chain.
- the electrical chain connects electrical machines likely to behave as a motor or generator according to energy values received electrically and / or mechanically respectively on their terminals and their shaft.
- the derived power is retransmitted to the wheels of the vehicle or stored, if necessary, in a storage system. This derived power makes it possible to precisely adapt the torque applied to the wheels of the vehicle to that requested by a driver, while also precisely adapting the torque and speed of the engine so as to optimize its efficiency.
- the electrical chain comprises in particular a first inverter, a second inverter, and an electric bus.
- this electric bus is a DC voltage bus.
- the AC voltage signals observable between its phases are transformed into a DC voltage signal observable on the bus, by the inverter associated with this machine.
- the DC voltage signal observable on the bus is transformed into signals of alternating and out of phase voltages by the inverter associated with this machine. These voltage signals are applied to the phases of the engine running machine.
- the energy produced by one of the machines is automatically consumed by the other machine.
- a storage system such as a battery or a supercapacitor, is connected to the bus. The two machines can then operate simultaneously as a generator or as a motor.
- FR-A-2832357 is described a device capable of operating in two different modes of operation.
- the shaft of one of the machines In a first mode, the shaft of one of the machines is connected to the wheel shaft, while in a second mode, this shaft is connected to an element of one of the planetary gear trains.
- the choice of mode is made according to the speed of rotation of the wheel shaft and the element of the train. Indeed, the shaft of the machine is preferably connected to the element which rotates the less quickly of the two (at ratios of the intermediate ratios near).
- a power derived in the electrical chain is equal to a rotational speed of a machine multiplied by a torque
- switching from one mode to another limits the power derived in the electrical chain.
- By limiting the power inside the electrical chain it is possible to limit the size of the electrical machines used.
- a mechanical assembly formed of planetary gear trains each have three mechanical linkage elements and two degrees of freedom.
- connecting element is meant an element to which one can connect a shaft of the device, this shaft can be motor or receiver.
- These epicyclic gear trains are interconnected so that their assembly has four mechanical connecting elements and two degrees of freedom.
- two links are made between the two trains of the set, the number of connecting elements thus from six to four and the number of degrees of freedom from four to two. More precisely, the sun gear of a first train is connected to a crown of a second train and the planet carriers are interconnected.
- these links between the two trains make the transmission device cumbersome. Indeed, by connecting the planet to a crown, we lose the mobility of an element of linkage of the mechanical assembly.
- the invention proposes to solve these congestion problems of the transmission device by limiting both the size of the electrical machines and that of the transmission device.
- the invention proposes to implement new modes of operation.
- the shaft of one of the machines of the device is capable of being connected either to the shaft of the heat engine, or to an element of one of the epicyclic gear trains.
- the shaft of one of the machines in a first mode of operation, is connected to one of the elements of one of the trains, while the shaft of the other machine is connected to the wheel shaft.
- the shafts of the two machines are each connected to an element of one of the planetary gear trains.
- the shaft of one of the machines is connected to the motor shaft, while the shaft of the other machine is connected to an element of one of the planetary gear trains.
- the shafts of the two machines are thus connected to the element which limits their speed of rotation and thus the power dissipated in the electrical chain.
- the two trains are connected so as to save a connecting element.
- the two trains are connected so that their satellites are carried by the same carrier and that these satellites meshing with each other.
- the fact that the satellites are carried by one and the same planet carrier makes it possible to avoid making a connection between two planet gates, for example.
- the fact that the satellites mesh with each other makes it possible to eliminate a degree of freedom to the assembly without losing a connecting element since no tree can be connected to the satellites.
- Two trains thus connected have 5 mechanical connection elements. It is therefore possible to remove a link element from the set to obtain the 4 link elements with two degrees of freedom, necessary for the proper functioning of the system. By removing an element, of course reduces the size of the mechanical assembly. In general, the crown of one of the trains is removed.
- the satellites are coaxial and hooked two by two on one axis.
- the invention therefore relates to a power transmission device between an output of a heat engine and a wheel shaft, comprising:
- a first and a second electric machine each comprising a shaft
- this mechanical assembly interconnecting the input shaft, the output shaft and the shafts of the machines, this mechanical assembly being formed by at least two planetary gear trains, these two epicyclic gear trains each comprising several mutually meshing elements, of which a sun gear, satellites connected to a planet carrier and a ring, characterized in that:
- the two planetary gear trains comprise a common planet carrier which drives axes in contact with the common carrier and the satellites, and in that it comprises,
- a first switching device comprising means for connecting the shaft of the first machine either to the input shaft or to an element of one of the trains.
- the invention also relates to a power transmission method in which:
- a device for transmitting power between an output of a heat engine and a wheel shaft comprising an input shaft connected to the output of the heat engine, an output shaft connected to the shaft; of wheels, two electric machines each comprising a shaft, characterized in that:
- the input shaft, the output shaft, and the shafts of the two machines are connected to a mechanical assembly formed by at least two planetary gear trains, these two trains comprising a common planet carrier which drives axes in contact with the satellite carriers and satellites of these trains, and that:
- the shaft of the first machine in a first mode of operation, is connected to a first element of one of the planetary gear trains and the shaft of the second machine to the wheel shaft;
- the shaft of the first machine in a second mode of operation, is connected to the first element and the shaft of the second machine to a second element of one of the planetary gear trains,
- the shaft of the first machine is connected to the input shaft and the shaft of the second machine to the second element.
- FIG. 1 a schematic representation of a transmission device according to the invention
- FIG. 2a an implementation of the transmission device according to the invention in a first mode of operation
- FIG. 3a a perspective view in partial section of a mechanical assembly according to the invention
- FIG. 1 shows a schematic representation of a transmission device 1 according to the invention between an output 2 of a thermal engine 3 and a shaft 4 of wheels 5.
- This device 1 comprises a first electric machine 6 and a second electric machine 7. These machines 6 and 7 respectively comprise a shaft 8 and a shaft 9. These shafts 8 and 9 are respectively connected to a drive input 11.1 and 11.2 of a mechanical assembly 12.
- This device 1 also comprises an input shaft 10 connected to the output 2 of the thermal motor 3 and to a drive input 11.3 of the mechanical assembly 12.
- This device 1 also comprises an output shaft 14 connected to both the shaft 4 of wheels 5 and an output 11.4 for driving the assembly 12 mechanical.
- the electrical chain connecting the machines 6 and 7 electric between them is not shown.
- the mechanical assembly 12 comprises a train 16 called Ravigneaux type.
- This train 16 has four mechanical connection elements: one for the input shaft 10, another for the output shaft 14 and the other two for the shafts 8 and 9 of the machines 6 and 7. Like a conventional epicyclic gear , this train 16 comprises a first sun gear 17, a planet carrier 18 carrying first satellites 19.1 and 19.2, and a ring 20 which meshing with each other. In addition, the train 16 comprises second satellites 21.1 and 21.2, and a second sun gear 22. The second satellites 21.1 and 21.2 are carried by the planet carrier 18 and mesh with both the first satellites 19.1 and 19.2 and with the sun gear. 22.
- the first train 65 comprises the first sun gear 17, the first satellites 19.1 and 19.2 and the crown 20.
- the 66 includes the second sun gear 22 and the second satellites 21.1 and 21.2, but is devoid of crown. These two trains 65 and 66 comprise the planet carrier 18 common. This planet carrier 18 drives axes 23-26 which are both in contact with this planet carrier 18 and satellites 19.1, 19.2, 21.1 and 21.2.
- the satellites 19.1, 19.2, 21.1 and 21.2 are respectively capable of rotating around the axes 23, 24, 25 and 26. Alternatively, as will be seen, the satellites 19.1 and 21.1, and the satellites 19.2 and 21.2 can be interdependent with each other and coaxial.
- the input shaft 10 is connected to both the output 2 of the thermal motor 3 and the planet carrier 18 common.
- the shaft 4 of wheels 5 is connected to the ring 20 via a gear formed by the wheels 27 and 28, the output shaft 14 and a wheel 29. More precisely, the wheel 27 hooked to the shaft 4 meshes with the wheel 28 hooked to one end of the output shaft 14. And the wheel 29 hooked to another end of the shaft 14 meshes with the crown 20.
- This ring 20 supports for this purpose two external teeth 20.1 and 20.2, and an internal toothing 20.3.
- the wheel 29 meshes with the external toothing 20.1.
- the first satellites 19.1 and 19.2 mesh with the internal teeth 20.3.
- a pinion 37 meshes with the external toothing 20.2.
- the shaft 8 of the first machine 6 is capable of being connected either to second sun gear 22, that is to the input shaft 10.
- the transmission device 1 comprises a first switching device 30 delimited by a discontinuous closed line.
- This first device 30 comprises the pinions 31 and 33 and two jaws 34, 35 distinct.
- the pinion 31 and the first clutch 34 are mounted on the shaft 8, while the pinion 33 and the second clutch 35 are mounted on the shaft 10.
- the first clutch 34 provides a connection between the pinion 31 and the shaft 8, while the pinion 33 is crazy on the shaft 10.
- the shaft 8 is then connected to the second sun gear 22 via a gear formed by the pinion 31 and the wheel 32, and a hollow shaft 48 connecting the wheel 32 to the sun gear 22.
- the second clutch 35 provides a connection between the pinion 33 and the shaft 10, while the pinion 31 is crazy on the shaft 8.
- the shaft 8 is thus connected to the shaft 10 via a gear formed by the wheel 13 and the pinion 33.
- the shaft 9 of the second machine 7 can be connected to either the wheel shaft 4 or the first sun gear 17.
- the device 1 comprises a second switching device 36.
- This second device 36 comprises the pinions 37, 38, and a third clutch 39 monobloc.
- the third clutch 39 provides a connection between the pinion 37 and the shaft 9, while the pinion 38 is crazy on the shaft 9.
- the shaft 9 is then connected to the shaft 4 by means in particular of the pinion 37, the ring 20 and the output shaft 14.
- the clutch 39 provides a connection between the pinion 38 and the shaft 9, while the pinion 37 is crazy on the shaft 9.
- the shaft 9 is then connected to the first planetary gear 17 via a gear formed by the pinion 38 and the wheel 40, and a hollow shaft 47 connecting the wheel 40 to the sun gear 17.
- the first device 30 comprises a one-piece clutch and is mounted only on the shaft 8.
- the second device 36 has two distinct claws mounted on the shaft 9.
- the claws 34, 35, 39 are rotated by the shaft on which they are mounted, and are able to move in translation along this shaft. In general, the claws are moved in translation through forks driven by a DC motor.
- the common planet carrier 18 and the ring gear 20 are connected to an oil pump 41 via a freewheel mechanism (not shown).
- the shafts 8 and 9, the input shaft 10 and the output shaft 14 are connected to different elements of the train 16.
- FIG. 2a illustrates the operation of the transmission device in different modes. For simplicity, it is considered in these figures that the shaft 4 of wheels 5 and the output shaft 14 are merged.
- FIG. 2a illustrates the first mode of operation of the device 1 according to the invention.
- the shaft 8 of the machine 6 is connected to the second sun gear 22.
- the shaft 9 of the second machine 7 is connected to the shaft 4 of wheels 5. Consequently, the first clutch 34 is engaged inside the pinion 31, while the second clutch 35 is disengaged from the pinion 33.
- the dog clutch 39 is engaged inside the pinion 37 but disengaged from the pinion 38.
- the wheel 13 and the pinion 33 mounted loosely on the shaft 10, are shown in broken lines because they do not transmit power to the shaft 4 of wheels 5.
- the first sun gear 17 and the wheel 40 which are connected between them via the hollow shaft 47 are also shown in broken lines, because they also do not transmit power to the shaft 4 of wheels 5.
- the machine 6 can exchange power with the wheel shaft 4 via the gear 31, the wheel 32, the shaft 48, the second sun gear 22, the second satellites 21.1 and 21.2, the first satellites 19.1, 19.2, and the ring 20.
- the machine 7 can exchange power with the shaft 4 of wheels 5 via the ring 20 and the wheel 29.
- the first mode of operation is implemented for short gear ratios. In one example, these ratios correspond to a vehicle speed of between 0 and 15 km / h, when the speed of the thermal engine 3 is equal to 1000 revolutions / minute. This first mode is generally used during takeoff of the vehicle but it can also be implemented for rear-steps of the vehicle.
- FIG. 2b illustrates this second mode of operation.
- the wheel 13 and the pinion 33 mounted loosely on the shaft 10 are represented in broken lines because, as before, they do not transmit power to the shaft 4 of wheels 5.
- the pinion 37 mounted idle on the shaft 9 is also shown in broken lines because it no longer transmits power to the shaft 4 of wheels 5.
- the machine 6 can exchange power with the wheel shaft 4 via the pinion 31, the wheel 32, the shaft 48, the second sun gear 22, the second satellites 21.1 and 21.2, the first satellites 19.1, 19.2, and the ring 20.
- the machine 7 can exchange power with the shaft 4 of wheels 5 via the pinion 38, the wheel 40, the shaft 47, the first sun gear 17, the first satellites 19.1 and 19.2, and the ring gear 20.
- This second mode is implemented for reports longer than those of the first mode but shorter than those of a third mode.
- the reports of the second mode correspond for example to a vehicle speed of between 15 and 50 km / h, for a speed of the engine of 1000 rpm.
- This second mode is generally used after takeoff of the vehicle, when it is in forward motion.
- the transmission device 1 switches to the third mode of operation.
- FIG. 2c illustrates this third mode of operation.
- the shaft 8 of the first machine 6 is connected to the input shaft.
- the shaft 9 of the second machine 7 is connected to the first 17.
- the clutch 34 is disengaged from the pinion 31 and the clutch 35 is engaged in the pinion 33.
- the clutch 39 is always engaged in the pinion 38 and disengaged from the pinion 37.
- the pinion 31 mounted loosely on the shaft 8, the wheel 32, the shaft 48, the second sun gear 22 and the second satellites 21.1 and 21.2 are shown in broken lines because they do not transmit power to the wheel shaft 4 5.
- the pinion 37 mounted crazy on the shaft 9 also does not transmit power and is also shown in broken lines.
- the first machine 6 can exchange power with the wheel shaft 4 via the wheel 13, pinion 33, shaft 10, carrier 18 and the crown 20.
- the second machine 7 can exchange power with the wheel shaft 4 via the pinion 38, the wheel 40, the shaft 47, the first sun gear 17, the first satellites 19.1 and 19.2 and crown 20.
- This third mode is implemented for transmission ratios longer than those of the second mode.
- the reports of the third mode correspond for example to a vehicle speed greater than 50 km / hour.
- the device can also switch from the third mode to the second mode and from the second mode to the first mode for conditions that are the opposite of those which have been stated.
- the first machine 6 behaves as a generator (respectively motor) while the second machine 7 behaves as a motor (respectively as a generator).
- the first machine 6 behaves as a generator (respectively motor) while the second machine 7 behaves as a motor (respectively as a generator).
- the electric bus not shown
- one switches from the first mode to the second mode or vice versa, when the rotational speed of the wheel shaft 4 is equal to the speed of rotation of the first sun gear 17, to a gear ratio.
- one switches from the second mode to the third mode or vice versa, when the rotational speed of the input shaft is equal to the rotational speed of the first element 22, to a ratio of gear ratio.
- jaws 33, 34 and 39 provide a continuous switching from one mode to another.
- the clutch 39 has a geometry such that when it passes from a snap with the pinion 37 to a snap with the pinion 38 or vice versa, it links these pinions 37 and 38 simultaneously to the shaft 9.
- the clutch 39 monobloc thus generally has a length greater than an axial distance between the two pinions 37 and 38.
- the jaws 34 and 35 are controlled independently, so that when they pass from a catch with the pinion 31 to a snap with the pinion 33 or vice versa, they simultaneously bind these pinions 31 and 33 with the shaft 8 and the shaft 10.
- the transmission device 1 comprises a control unit 53 (see FIG. 1), such as a microcontroller, which controls this thermal motor 3, the electrical machines 6 and 7 and the switching devices 30 and 36.
- This control unit 53 comprises a microprocessor 54, a program memory 55 comprising programs P1-PN, a data memory 56 comprising data D1-DN and an interface 57 of inputs-outputs interconnected via one another. a bus 58.
- Inputs M-IN signals applied to the interface 57 correspond, for example, to a setpoint torque to be applied to the wheel shaft 4 or to measurements returned by sensors (not shown) of force, velocity, current, Acceleration ...
- D1-DN data correspond in particular to maps of instantaneous consumption of the thermal engine 3 and to yield maps of the electric machines 6 and 7.
- the microprocessor 54 executes one of the programs P1-PN which generates the output signals 01, 02 and OT.
- These output signals 01, 02 and OT respectively control the first machine 6, the second machine 7 and the thermal motor 3, so that these members 3, 6 and 7 operate at their operating point which corresponds to the minimum instantaneous consumption of the 3 thermal engine.
- the unit 53 calculates that the minimum consumption corresponds to a short speed ratio, the first mode of operation will be implemented. On the other hand, if the unit 53 calculates that the minimum consumption corresponds to a longer gear ratio, the second or the third mode, as the case may be, will be implemented.
- Figure 3a shows a three-dimensional view in partial section of a train 16 Ravigneaux type. For simplicity, the outer teeth of the ring 20 are not shown.
- This figure shows that the train 16 is formed by a first gear 65 having a first sun gear 17, first satellites 19.1 and a ring gear 20, and a second gear 66 having a second sun gear 22 and second satellites 21.1.
- This second train 66 is devoid of crown.
- the satellites 19.1 and 21.1 of the two trains 65, 66 are connected to the planet carrier 18 common and mesh with each other. More precisely, the axis 23 of the first satellite 19.1 is in contact with this first satellite 19.1 and the planet carrier 18 common. The axis 26 of the second satellite 21.1 is in contact with the second satellite 21.1 and the planet carrier 18 common. The door- satellites 18 rotates the axes 23 and 26.
- the satellite 19.1 is rotatable about the axis 23.
- the satellite 21.1 is rotatable about the axis 26, in a direction opposite to the satellite 19.1.
- the Ravigneaux train 16 further comprises a circular flange 63 to which the axes 23 of the first satellites 19.1 are connected.
- the train 16 comprises three first satellites 19.1 and three second satellites 21.1.
- FIG. 3b shows a variant embodiment of the train 16.
- the first gear 65 still includes the sun gear 17, the first satellites 19.1 and 19.2 and the ring gear 20 which mesh with each other.
- the second train 66 still includes the sun gear 22 and the second satellites 21.1 and 21.2 which mesh with each other.
- the satellites 19.1, 19.2, 21.1 and 21.2 are always carried by the planet carrier 18 common.
- the second satellites 21.1 and 21.2 are hooked and secured to the first satellites 19.1 and 19.2.
- the first and second satellites are coaxial.
- the axes 23 and 24 of the satellites 19.1 and 21.1 are here combined, and are connected to both the satellite carrier 18 and the satellite 19.1.
- the satellites 19.1 and 21.1 are capable of rotating around the axes 23 and 24.
- the axes 25 and 26 of the satellites 19.2 and 21.2 are so merged, and are furthermore connected to both the common planet carrier 18 and the satellite 19.2. Satellites 19.2 and 21.2 are capable of rotating around axes 25 and 26.
- the train 16 is formed of more than two planetary gear trains.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Structure Of Transmissions (AREA)
- Arrangement Of Transmissions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0550752A FR2883515B1 (fr) | 2005-03-23 | 2005-03-23 | Dispositif de transmission de puissance entre une sortie d'un moteur thermique et un arbre de roues et procede de transmission de puissance associe |
| PCT/FR2006/050241 WO2006100404A1 (fr) | 2005-03-23 | 2006-03-20 | Dispositif de transmission de puissance entre une sortie d'un moteur thermique et un arbre de roues et procede de transmission de puissance associe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1861272A1 true EP1861272A1 (fr) | 2007-12-05 |
Family
ID=35395982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06726260A Withdrawn EP1861272A1 (fr) | 2005-03-23 | 2006-03-20 | Dispositif de transmission de puissance entre une sortie d'un moteur thermique et un arbre de roues et procede de transmission de puissance associe |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080227576A1 (fr) |
| EP (1) | EP1861272A1 (fr) |
| JP (1) | JP2008536739A (fr) |
| FR (1) | FR2883515B1 (fr) |
| WO (1) | WO2006100404A1 (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2875183B1 (fr) * | 2004-09-15 | 2008-02-15 | Peugeot Citroen Automobiles Sa | Dispositif de transmission de puissance pour vehicule automobile et procede d'utilisation de ce dispositif |
| US7686723B2 (en) * | 2006-08-15 | 2010-03-30 | Ford Global Technologies, Llc | Hybrid electric vehicle and powertrain |
| FR2911539B1 (fr) * | 2007-01-19 | 2009-10-23 | Peugeot Citroen Automobiles Sa | Dispositif de transmission pour vehicule a motorisation hybride |
| FR2923185B1 (fr) * | 2007-11-07 | 2010-04-02 | Peugeot Citroen Automobiles Sa | Dispositif de transmission de puissance entre une sortie d'un moteur thermique et un arbre de roues et utilisation de ce dispositif |
| GB2466975B (en) * | 2009-01-16 | 2013-06-19 | Gm Global Tech Operations Inc | Torque distributing drive mechanism for motorized vehicles |
| WO2012060610A2 (fr) * | 2010-11-01 | 2012-05-10 | 주식회사 에스비비테크 | Réducteur hybride |
| EP2757146B1 (fr) | 2013-01-22 | 2018-01-03 | The Procter & Gamble Company | Compositions de traitement contenant des microcapsules, des amines primaires ou secondaires et des capteurs de formaldéhyde |
| CN109477557B (zh) * | 2016-07-26 | 2022-02-11 | 福伊特专利有限公司 | 具有叠加式传动装置的驱动设备 |
| WO2018019612A1 (fr) * | 2016-07-26 | 2018-02-01 | Voith Patent Gmbh | Dispositif d'entrainement comportant une boîte de superposition |
| WO2018019611A1 (fr) * | 2016-07-26 | 2018-02-01 | Voith Patent Gmbh | Dispositif d'entraînement comportant une boîte de superposition |
| EP3879134B1 (fr) * | 2020-03-13 | 2023-11-15 | Volvo Car Corporation | Transmission avec torque vectoring |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558589A (en) * | 1995-07-20 | 1996-09-24 | General Motors Corporation | Two-mode, compound-split, electro-mechanical vehicular transmission |
| US5931757A (en) * | 1998-06-24 | 1999-08-03 | General Motors Corporation | Two-mode, compound-split electro-mechanical vehicular transmission |
| DE10021025A1 (de) * | 2000-05-02 | 2001-11-15 | Bosch Gmbh Robert | Getriebe, insbesondere für Kraftfahrzeuge |
| FR2832357B1 (fr) * | 2001-11-21 | 2004-02-27 | Peugeot Citroen Automobiles Sa | Dispositif de transmission de puissance a au moins deux trains epicycloidaux |
| US6793600B2 (en) * | 2001-11-28 | 2004-09-21 | Kazuyoshi Hiraiwa | Powertrain for hybrid electric vehicles |
-
2005
- 2005-03-23 FR FR0550752A patent/FR2883515B1/fr not_active Expired - Fee Related
-
2006
- 2006-03-20 EP EP06726260A patent/EP1861272A1/fr not_active Withdrawn
- 2006-03-20 US US11/909,422 patent/US20080227576A1/en not_active Abandoned
- 2006-03-20 JP JP2008502444A patent/JP2008536739A/ja not_active Withdrawn
- 2006-03-20 WO PCT/FR2006/050241 patent/WO2006100404A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006100404A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006100404A1 (fr) | 2006-09-28 |
| FR2883515A1 (fr) | 2006-09-29 |
| US20080227576A1 (en) | 2008-09-18 |
| FR2883515B1 (fr) | 2008-10-31 |
| JP2008536739A (ja) | 2008-09-11 |
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