FR2912696A1 - Power distribution transmission for motor vehicle, has electric machines arranged on axis, and mode changing device and two of three planetary gear trains reassembled in principal axial zone of transmission - Google Patents

Power distribution transmission for motor vehicle, has electric machines arranged on axis, and mode changing device and two of three planetary gear trains reassembled in principal axial zone of transmission Download PDF

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Publication number
FR2912696A1
FR2912696A1 FR0753413A FR0753413A FR2912696A1 FR 2912696 A1 FR2912696 A1 FR 2912696A1 FR 0753413 A FR0753413 A FR 0753413A FR 0753413 A FR0753413 A FR 0753413A FR 2912696 A1 FR2912696 A1 FR 2912696A1
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FR
France
Prior art keywords
transmission
gear
electrical
planetary gear
electrical machines
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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.)
Granted
Application number
FR0753413A
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French (fr)
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FR2912696B1 (en
Inventor
Michel Buannec
Paulo Mendes
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Renault SAS
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Renault SAS
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Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR0753413A priority Critical patent/FR2912696B1/en
Publication of FR2912696A1 publication Critical patent/FR2912696A1/en
Application granted granted Critical
Publication of FR2912696B1 publication Critical patent/FR2912696B1/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • 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
    • F16H2037/105—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • 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
    • 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
    • F16H2200/2097—Transmissions using gears with orbital motion comprising an orbital gear set member permanently connected to the housing, e.g. a sun wheel permanently connected to the housing
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)
  • General Details Of Gearings (AREA)

Abstract

The transmission has an input shaft connected to a heat engine (MT), and an output shaft connected to a differential (20). Two electric machines (ME1, ME2) are arranged on an axis, and a mode changing device (4) comprising a planetary gear train (G3), where the mode changing device and planetary gear trains (G1, G2) are reassembled in a principal axial zone of the transmission. Each electric machine includes a rotor established axially on an upstream and/or downstream of the principal axial zone.

Description

B 06-4274 FR ûEGA/DD Société par actions simplifiée dite : RENAULT s.a.sB 06-4274 EN ûEGA / DD Simplified joint stock company known as: RENAULT s.a.s

Transmission à dérivation de puissance pour implantation longitudinale dans un véhicule automobile Invention de : BUANNEC Michel MENDES Paulo  Power bypass transmission for longitudinal implantation in a motor vehicle Invention of: BUANNEC Michel MENDES Paulo

2 Transmission à dérivation de puissance pour implantation longitudinale dans un véhicule automobile.  2 Power shunt transmission for longitudinal implantation in a motor vehicle.

L'invention concerne le domaine des transmissions à dérivation de puissance, en particulier les transmissions à dérivation de puissance pour implantation longitudinale dans un véhicule automobile. Par la demande FR 2 859 669 (RENAULT) on connaît une transmission à dérivation de puissance reliant en parallèle le moteur thermique aux roues du véhicule par deux voies mécaniques de transmission de puissance. La transmission décrite comporte deux machines électriques formant une voie électrique de transmission de puissance par une transformation de la puissance mécanique en puissance électrique et inversement. L'une des voies mécaniques de puissance comprend un dispositif de changement de mode. Ce dispositif comprend un train épicycloïdal de changement de mode inséré le long de ladite voie mécanique. Ces trois voies de transmission de puissance sont combinées grâce à deux trains épicycloïdaux. De manière connue, des groupes motopropulseurs comprennent un moteur thermique et une transmission disposés dans le prolongement du vilebrequin. On distingue deux familles de groupes motopropulseurs selon leur sens d'implantation dans le véhicule. Il y a ceux destinés à être implantés transversalement dans le véhicule pour des véhicules de puissance modérée, et ceux destinés à être implantés longitudinalement pour des véhicules de forte puissance. Pour les transmissions à implantation longitudinale, l'arbre de sortie est généralement dans l'alignement de l'arbre d'entrée et on recherche une transmission étroite radialement de manière à être implantée dans un tunnel de pont qui traverse la caisse du véhicule automobile dans le sens de la longueur. Le brevet US 5 931 757 ainsi que la demande de brevet US 2005/0137042 décrivent des transmissions hybrides électromécaniques  The invention relates to the field of power-bypass transmissions, in particular power-bypass transmissions for longitudinal implantation in a motor vehicle. By the application FR 2 859 669 (RENAULT) there is known 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 inserted along said mechanical path. These three power transmission paths are combined by two planetary gear trains. In known manner, powertrains comprise a heat engine and a transmission arranged in the extension of the crankshaft. There are two families of powertrains according to their direction of implantation in the vehicle. There are those intended to be installed transversely in the vehicle for vehicles of moderate power, and those intended to be implanted longitudinally for high power vehicles. For transmissions with longitudinal implantation, the output shaft is generally in alignment with the input shaft and a narrow transmission is sought radially so as to be implanted in a bridge tunnel which passes through the body of the motor vehicle in the sense of length. U.S. Patent 5,931,757 and US Patent Application Publication No. 2005/0137042 describe electromechanical hybrid transmissions.

3 comprenant deux machines électriques, trois trains épicycloïdaux et présentant deux modes de fonctionnement. L'arbre de sortie de ces transmissions est dans l'axe de l'arbre d'entrée relié au moteur thermique. Ces transmissions présentent des machines électriques ayant un rotor de grande dimension entourant les trains épicycloïdaux. Cela engendre un encombrement radial important pouvant pénaliser l'implantation longitudinale d'une telle transmission dans un véhicule. Le brevet US 5 585 589 décrit une transmission électromécanique ayant deux trains épicycloïdaux et présentant deux modes de fonctionnement. Les deux machines électriques de cette transmission ont des axes parallèles à l'axe principal de la transmission. Les deux axes des deux machines son situés radialement à l'extérieur d'un dispositif de changement de mode. Cela engendre un encombrement radial important susceptible de pénaliser une implantation longitudinale de la transmission dans un véhicule. L'invention propose une transmission à dérivation de puissance pour véhicule automobile remédiant aux inconvénients précédents et notamment permettant de diminuer l'encombrement radial de la transmission pour faciliter l'implantation longitudinale dans un tunnel de pont du véhicule automobile. Selon un mode de réalisation, la transmission à dérivation de puissance pour véhicule automobile, présente une forme générale allongée le long d'un axe principal et comprend, à une extrémité, un arbre d'entrée destiné à être relié à un moteur thermique et à l'extrémité opposée, un arbre de sortie destiné à être relié à un différentiel. La transmission comprend deux machines électriques, ainsi que, disposés sur un même axe, au moins un premier et un deuxième trains épicycloïdaux et un dispositif de changement de mode comprenant un troisième train épicycloïdal. Les trains épicycloïdaux et le dispositif de  3 comprising two electrical machines, three planetary gear trains and having two modes of operation. The output shaft of these transmissions is in the axis of the input shaft connected to the engine. These transmissions have electrical machines having a large rotor surrounding the planetary gear trains. This generates a large radial size that can penalize the longitudinal implantation of such a transmission in a vehicle. US Patent 5,585,589 discloses an electromechanical transmission having two planetary gear trains and having two modes of operation. The two electric machines of this transmission have axes parallel to the main axis of the transmission. The two axes of the two machines are located radially outside a mode change device. This generates a large radial size likely to penalize a longitudinal implantation of the transmission in a vehicle. The invention proposes a power bypass transmission for a motor vehicle overcoming the above disadvantages and in particular making it possible to reduce the radial size of the transmission in order to facilitate longitudinal implantation in a bridge tunnel of the motor vehicle. According to one embodiment, the power transmission transmission for a motor vehicle has a generally elongate shape along a main axis and comprises, at one end, an input shaft intended to be connected to a heat engine and to a motor. the opposite end, an output shaft intended to be connected to a differential. The transmission comprises two electric machines, as well as, arranged on the same axis, at least a first and a second planetary gear trains and a mode change device comprising a third epicyclic gear. Planetary gear trains and the device

4 changement de mode sont regroupés dans une même zone axiale principale de la transmission. Dans une telle transmission, les organes mécaniques principaux tels que les trains épicycloïdaux et le changement de mode étant regroupés dans une même zone axiale, les machines électriques peuvent être disposées axialement hors de cette zone principale. Leur diamètre peut être réduit car il n'est pas nécessaire que ces machines aient un rotor situé radialement à l'extérieur de ces organes mécaniques principaux de grand diamètre. Cela améliore l'encombrement radial de la transmission et facilite l'implantation longitudinale dans un véhicule. Avantageusement, les machines électriques présentent chacune un rotor implanté axialement en amont et/ou en aval de la zone axiale principale. Avantageusement, la transmission comprend un dispositif d'amortissement interposé axialement entre le moteur thermique et l'arbre d'entrée, au moins une première machine électrique étant implantée axialement entre le dispositif d'amortissement et la zone axiale principale, le dispositif de changement de mode étant situé axialement entre la première machine électrique et les premier et deuxième trains épicycloïdaux. Avantageusement, le premier train épicycloïdal répartit la puissance entre une première voie mécanique de transmission de puissance comprenant le dispositif de changement de mode et une voie électrique de transmission de puissance utilisant les deux machines électriques, le deuxième train épicycloïdal G2 combinant les puissances reçues par la première voie mécanique et par la voie électrique avec une deuxième voie mécanique de transmission de puissance. Avantageusement, la première voie mécanique de transmission de puissance relie un porte satellites du premier train épicycloïdal à une couronne du deuxième train épicycloïdal. Avantageusement, les deux machines électriques sont coaxiales à 5 l'axe principal et la deuxième machine électrique est située à l'extrémité axiale de la transmission du côté de l'arbre de sortie. Une telle transmission présente une partie principale purement mécanique, qui peut être logée dans un carter spécifique. Ce carter spécifique peut être traversé de chaque côté par un arbre entouré d'un moyeu cannelé.  4 mode changes are grouped in the same main axial zone of the transmission. In such a transmission, the main mechanical organs such as planetary gear trains and the mode change being grouped in the same axial zone, the electrical machines can be arranged axially outside this main zone. Their diameter can be reduced because it is not necessary that these machines have a rotor located radially outside these main mechanical organs of large diameter. This improves the radial size of the transmission and facilitates longitudinal implantation in a vehicle. Advantageously, the electrical machines each have a rotor implanted axially upstream and / or downstream of the main axial zone. Advantageously, the transmission comprises a damping device interposed axially between the heat engine and the input shaft, at least a first electrical machine being implanted axially between the damping device and the main axial zone, the device for changing the mode being located axially between the first electrical machine and the first and second planetary gear trains. Advantageously, the first epicyclic gear distributes the power between a first mechanical power transmission channel comprising the mode change device and an electrical power transmission path using the two electrical machines, the second planetary gear train G2 combining the powers received by the first mechanical way and by the electric way with a second mechanical way of transmission of power. Advantageously, the first mechanical power transmission path connects a satellite carrier of the first epicyclic gear train to a ring gear of the second epicyclic gear train. Advantageously, the two electrical machines are coaxial with the main axis and the second electrical machine is located at the axial end of the transmission on the output shaft side. Such a transmission has a purely mechanical main part, which can be housed in a specific housing. This specific housing can be crossed on each side by a shaft surrounded by a fluted hub.

Les machines électriques peuvent être assemblées séparément et entraîner le moyeu cannelé. Cela permet de faciliter l'assemblage de la transmission. Avantageusement, la transmission comprend un quatrième train épicycloïdal G4 dont un planétaire est fixe par rapport à un rotor de la deuxième machine électrique et dont l'une des entrées, prise parmi le porte satellites PS4 ou la couronne C4, est fixée à la couronne C2 du deuxième train épicycloïdal G2, l'autre entrée, prise parmi le porte satellites PS4 ou la couronne C4, étant fixée à un carter de la transmission. Cela présente l'avantage de permettre un rapport de vitesse élevé, par exemple un rapport de deux à quatre dans un encombrement réduit. Selon un autre mode de réalisation, les deux machines électriques sont décalées parallèlement à l'axe principal et sont munies chacune d'un pignon de sortie engrenant chacun avec une roue coaxiale à l'axe principal. Le fait que les machines électriques soient décalées parallèlement à l'axe principal n'est pas forcément pénalisant pour l'encombrement radial global de la transmission. En effet, les transmissions à dérivation de puissance présentant deux modes de fonctionnement nécessitent des puissances de machines électriques  The electrical machines can be assembled separately and drive the splined hub. This facilitates the assembly of the transmission. Advantageously, the transmission comprises a fourth epicyclic gear G4 whose sun gear is fixed relative to a rotor of the second electrical machine and one of whose inputs, taken from the PS4 satellite carrier or the crown C4, is fixed to the ring C2 of the second epicyclic gear G2, the other input, taken from the PS4 satellite carrier or the crown C4, being fixed to a housing of the transmission. This has the advantage of allowing a high speed ratio, for example a ratio of two to four in a small footprint. According to another embodiment, the two electrical machines are offset parallel to the main axis and are each provided with an output gear meshing each with a wheel coaxial with the main axis. The fact that the electrical machines are offset parallel to the main axis is not necessarily penalizing for the overall radial size of the transmission. Indeed, the power bypass transmissions having two modes of operation require powers of electrical machines

6 réduites. I1 est possible d'utiliser des machines électriques de type boudin ayant un rotor de diamètre modéré. Par ailleurs, de telles transmissions présentent l'avantage que le pignon de sortie de chaque machine électrique, et la roue coaxiale à l'axe principal de la transmission, introduisent un rapport de transmission pour chacune des machines électriques, permettant de faire travailler celles-ci dans une plage de meilleur rendement. Avantageusement, les deux machines électriques sont situées dans une même zone axiale, le pignon de sortie de la première machine électrique étant situé axialement à l'opposé du dispositif de changement de mode. Dans une telle transmission, les machines électriques peuvent être situées à un emplacement axial différent des organes mécaniques de plus grand diamètre de la transmission. I1 est possible d'utiliser pour les machines électriques un espace radialement proche de l'axe principal de la transmission. En particulier, la machine électrique ayant son pignon de sortie situé axialement à l'opposé du dispositif de changement de mode, peut avoir son axe situé à une distance radiale de l'axe inférieur au rayon de ce dispositif de changement de mode. Avantageusement, l'arbre d'entrée et l'arbre de sortie sont coaxiaux à l'axe principal, la transmission présentant une section droite où l'angle ayant comme sommet l'axe principal et passant par les axes des deux machines électriques est inférieur à 150 , et est destiné à être orienté vers le bas du véhicule. Cela facilite l'implantation de la transmission dans le tunnel de pont du véhicule.  6 reduced. It is possible to use electrical machines of the coil type having a rotor of moderate diameter. Furthermore, such transmissions have the advantage that the output gear of each electric machine, and the wheel coaxial with the main axis of the transmission, introduce a transmission ratio for each of the electrical machines, making it possible to make these machines work. in a better performance range. Advantageously, the two electrical machines are located in the same axial zone, the output gear of the first electrical machine being located axially opposite the mode change device. In such a transmission, the electrical machines may be located at an axial location different from the mechanical members of larger diameter of the transmission. It is possible to use for electrical machines a space radially close to the main axis of the transmission. In particular, the electric machine having its output gear located axially opposite the mode change device, may have its axis located at a radial distance from the axis below the radius of the mode change device. Advantageously, the input shaft and the output shaft are coaxial with the main axis, the transmission having a cross section where the angle having as vertex the main axis and passing through the axes of the two electrical machines is lower than at 150, and is intended to be oriented towards the bottom of the vehicle. This facilitates the implementation of the transmission in the vehicle's tunnel bridge.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée de quelques modes de réalisation pris à titre d'exemples non limitatifs et illustrés par le dessin annexé, selon lequel :  Other characteristics and advantages of the invention will appear on reading the detailed description of some embodiments taken as non-limiting examples and illustrated by the appended drawing, in which:

7 - la figure 1 est un schéma d'ensemble de la transmission à dérivation de puissance selon l'invention ; - la figure 2 est un schéma détaillé d'un premier mode de réalisation de la transmission avec deux machines électriques coaxiales ; - la figure 3 est un schéma détaillé d'une deuxième mode de réalisation d'une transmission à deux machines électriques parallèles ; et - la figure 4 est un schéma en coupe transversale illustrant l'implantation des machines électriques du deuxième mode de réalisation. Comme illustré sur la figure 1, la transmission à dérivation de puissance est reliée à un moteur thermique MT, à une première machine électrique ME1, à une deuxième machine électrique ME2 et à des roues 1. La transmission proprement dite comprend un arbre d'entrée 2, un premier train épicycloïdal G1, un deuxième train épicycloïdal G2 et un dispositif de changement de mode 4, lequel comprend un troisième train épicycloïdal G3 ainsi qu'un moyen d'immobilisation 5 et un moyen de solidarisation 6. Chacun des trains épicycloïdaux G1, G2, G3 comprend un planétaire Pl, P2, P3, un porte-satellites PSI, PS2, PS3, et une couronne Cl, C2, C3. La transmission comprend également deux dispositifs de transmission 7, 8 présentant un rapport de transmission fixe et interposés respectivement entre la première machine électrique ME1 et un planétaire Pl du premier train épicycloïdal G1 et entre la deuxième machine électrique ME2, et le dispositif de changement de mode 4. Le couple transmis à l'arbre d'entrée 2 est réparti entre la couronne Cl et le planétaire P2. Les couples moteurs issus du dispositif de transmission 8 et du dispositif de changement de mode 4  FIG. 1 is an overall diagram of the power bypass transmission according to the invention; FIG. 2 is a detailed diagram of a first embodiment of the transmission with two coaxial electrical machines; FIG. 3 is a detailed diagram of a second embodiment of a transmission with two parallel electrical machines; and - Figure 4 is a cross-sectional diagram illustrating the implementation of the electrical machines of the second embodiment. As illustrated in FIG. 1, the power bypass transmission is connected to a heat engine MT, to a first electric machine ME1, to a second electric machine ME2 and to wheels 1. The transmission itself comprises an input shaft 2, a first planetary gear G1, a second planetary gear G2 and a mode change device 4, which comprises a third epicyclic gear G3 and an immobilizing means 5 and a securing means 6. Each of the planetary gear trains G1 , G2, G3 comprises a sun gear P1, P2, P3, a planet carrier PSI, PS2, PS3, and a ring C1, C2, C3. The transmission also comprises two transmission devices 7, 8 having a fixed transmission ratio and interposed respectively between the first electric machine ME1 and a sun gear P1 of the first epicyclic gear G1 and between the second electric machine ME2, and the mode change device. 4. The torque transmitted to the input shaft 2 is distributed between the ring C1 and the sun gear P2. The driving torques from the transmission device 8 and the mode change device 4

8 s'ajoutent et rejoignent la couronne C2. La transmission présente une voie électrique, et deux voies mécaniques de transmission de la puissance du moteur thermique MT aux roues 1. La voie électrique comprend les machines électriques ME1 et ME2. Une première voie mécanique comprend le dispositif de changement de mode 4, en parallèle d'une deuxième voie mécanique. La transmission fonctionne à dérivation de puissance. La puissance du moteur thermique MT est transmise aux roues 1 en passant par les deux voies mécaniques ainsi que par la voie électrique.  8 are added and join the C2 crown. The transmission has an electrical path, and two mechanical channels for transmitting power from the heat engine MT to the wheels 1. The electrical path comprises the electric machines ME1 and ME2. A first mechanical path includes the mode change device 4, in parallel with a second mechanical path. The transmission operates at power bypass. The power of the heat engine MT is transmitted to the wheels 1 through the two mechanical channels and the electrical way.

Lorsque l'une des machines ME1 ou ME2 fonctionne en alternateur, l'autre fonctionne en motrice. La différence entre l'énergie électrique fournie par l'alternateur et celle consommée par la motrice est stockée ou fournie par une batterie B du véhicule. Pour chacun des modes de transmission, il existe une plage de rapports de transmission entre le moteur thermique MT et les roues 1 pour lesquels la proportion d'énergie transmise par la voie électrique est minimale. Cela correspond à une plage optimale de rendement énergétique de la transmission. Lorsque le moyen de solidarisation 6 est actionné et que le moyen d'immobilisation 5 est libre, l'ensemble du train épicycloïdal de changement de mode G3 tourne en bloc et la vitesse de rotation du porte satellites PSI et de la couronne C2 sont identiques. Les trains épicycloïdaux G1 et G2 et les dispositifs de transmission 7 et 8 sont calculés pour que la plage de vitesse optimale dans ce deuxième mode de fonctionnement corresponde à des vitesses élevées du véhicule. Lorsque le moyen d'immobilisation 5 du dispositif de changement de mode 4 est actionné et que le moyen de solidarisation 6 est libre, le rapport de transmission du dispositif de changement de mode 4 est fixe et fonction des nombres de dents du planétaire P3 et de  When one of the ME1 or ME2 machines operates as an alternator, the other operates as a motor. The difference between the electric energy supplied by the alternator and that consumed by the power car is stored or supplied by a battery B of the vehicle. For each of the transmission modes, there is a range of transmission ratios between the heat engine MT and the wheels 1 for which the proportion of energy transmitted by the electrical path is minimal. This corresponds to an optimum range of energy efficiency of the transmission. When the securing means 6 is actuated and the immobilizing means 5 is free, the assembly of the G3 planetary gear train rotates in a block and the rotational speed of the satellite carrier PSI and the ring C2 are identical. The planetary gear trains G1 and G2 and the transmission devices 7 and 8 are calculated so that the optimum speed range in this second mode of operation corresponds to high speeds of the vehicle. When the immobilizing means 5 of the mode changing device 4 is actuated and the securing means 6 is free, the transmission ratio of the mode change device 4 is fixed and depends on the number of teeth of the sun gear P3 and

9 la couronne C3. Cette configuration correspond à un premier mode de fonctionnement de la transmission, convenant à des vitesses réduites du véhicule. Le changement de mode a lieu lorsque aucune puissance mécanique ne transite par le dispositif de changement de mode 4, c'est-à-dire que les trois entrées du troisième train épicycloïdal G3 sont arrêtées. L'instant du changement de mode ne se traduit par aucun à-coup de couple pour le véhicule. De plus le changement de mode peut avoir lieu avec des systèmes à crabots qui présentent l'avantage de pouvoir être actionnés mécaniquement et ne provoquent aucune dispersion d'énergie une fois qu'ils sont en position crabotée. On va à l'aide de la figure 2 décrire de manière plus détaillée un premier mode de réalisation permettant de réaliser une transmission de dérivation de puissance correspondant à la figure 1. Dans ce mode de réalisation, tous les composants de la transmission décrits en figure 1 sont alignés le long d'un axe principal de la transmission qui est disposé dans l'alignement de l'axe du vilebrequin d'un moteur thermique MT. Un quatrième train épicycloïdal G4, également aligné sur l'axe principal, comprend un planétaire P4, un porte satellites PS4 et une couronne C4. On trouve disposés successivement le long de cet axe un dispositif d'amortissement de couple 10, la première machine électrique ME1, une roue à crabots inclinée 11, un baladeur de synchroniseur 12, des crabots fixes 13, le porte satellites PS3, le reste du train épicycloïdal G3, le porte satellites PSI, le reste du train épicycloïdal G1, une roue fixe 14, le planétaire P2, le porte satellites PS2, un quatrième train épicycloïdal G4 et la deuxième machine électrique ME2. Un arbre d'entrée 15 s'étend axialement depuis le dispositif d'amortissement 10 jusqu'au planétaire P2. La roue 14 est montée fixe  9 crown C3. This configuration corresponds to a first mode of operation of the transmission, suitable for reduced speeds of the vehicle. The change of mode takes place when no mechanical power passes through the mode change device 4, that is to say that the three inputs of the third planetary gear G3 are stopped. The moment of the change of mode does not result in any jerk of torque for the vehicle. In addition, the mode change can take place with jaw systems that have the advantage of being mechanically actuated and do not cause any energy dispersion once they are in the dogged position. FIG. 2 is a more detailed description of a first embodiment making it possible to carry out a power bypass transmission corresponding to FIG. 1. In this embodiment, all the transmission components described in FIG. 1 are aligned along a main axis of the transmission which is arranged in alignment with the axis of the crankshaft of a heat engine MT. A fourth planetary gear G4, also aligned with the main axis, comprises a sun gear P4, a satellite carrier PS4 and a crown C4. There are arranged successively along this axis a torque damping device 10, the first electric machine ME1, an inclined jaw wheel 11, a synchronizer player 12, fixed jaw 13, the PS3 satellite carrier, the rest of the G3 epicyclic gear train, the PSI planet carrier, the rest of the planetary gear G1, a fixed wheel 14, the planet gear P2, the PS2 planet carrier, a fourth planetary gear G4 and the second electrical machine ME2. An input shaft 15 extends axially from the damping device 10 to the sun gear P2. The wheel 14 is fixed mounted

10 sur l'arbre d'entrée 15 et comprend les éléments de la couronne Cl. Un premier moyeu 16 entoure l'arbre d'entrée 15 et s'étend axialement depuis un rotor de la première machine électrique ME1 jusqu'au premier train épicycloïdal G1. Le planétaire Pl est monté fixe sur le premier moyeu 16. Un deuxième moyeu 17 est monté autour du premier moyeu 16 et s'étend axialement depuis la roue à crabots 11 jusqu'au porte satellites PSI, qui sont solidaires du deuxième moyeu 17. Le planétaire P3 est monté fixe sur le deuxième moyeu 17. Le porte satellites PS3 est monté fixe sur un troisième moyeu 18, sur lequel peut coulisser axialement le baladeur de synchroniseur 12. Le porte satellites PS2 est monté fixe sur un arbre de sortie 19 s'étendant axialement depuis le porte satellites PS2 jusqu'à la sortie de la transmission et est destiné à être relié à un différentiel 20 et aux roues 1 du véhicule. Un rotor de la deuxième machine électrique ME2 est monté sur un quatrième moyeu 21 entourant l'arbre de sortie 19 et entraînant le planétaire P4. Une jupe extérieure 22 s'étend axialement depuis le troisième train épicycloïdal G3 jusqu'au porte satellites PS4 du quatrième train épicycloïdal. La jupe extérieure 22 comprend les éléments de couronne C2 et C3. La couronne C4 du quatrième train épicycloïdal est montée fixe dans un carter 23 de la transmission. On retrouve dans cette configuration les liens cinématiques décrits en figure 1. Le moyen d'immobilisation 5 est constitué par les crabots fixes 13, le baladeur de synchroniseur 12, le troisième moyeu 18 et le porte satellites PS3. Lorsqu'un actionneur, non représenté, déplace le baladeur de synchroniseur 12 vers la droite de la figure 2, le porte satellites PS3 est immobilisé. Le moyen de solidarisation 6 est constitué par le porte satellites PS3, le troisième moyeu 18, le baladeur 12, la roue à crabots 11, le deuxième moyeu 17 et le planétaire P3. Lorsque le baladeur 12 est  10 on the input shaft 15 and comprises the elements of the ring C1. A first hub 16 surrounds the input shaft 15 and extends axially from a rotor of the first electric machine ME1 to the first epicyclic gear G1. The sun gear Pl is fixedly mounted on the first hub 16. A second hub 17 is mounted around the first hub 16 and extends axially from the clutch wheel 11 to the PSI planet carrier, which are integral with the second hub 17. The P3 planet is fixedly mounted on the second hub 17. The PS3 satellite carrier is fixedly mounted on a third hub 18, on which can slide axially the synchronizer player 12. The satellite carrier PS2 is fixedly mounted on an output shaft 19 's extending axially from the satellite gate PS2 to the output of the transmission and is intended to be connected to a differential 20 and the wheels 1 of the vehicle. A rotor of the second electrical machine ME2 is mounted on a fourth hub 21 surrounding the output shaft 19 and driving the sun gear P4. An outer skirt 22 extends axially from the third epicyclic gear train G3 to the planet carrier PS4 of the fourth epicyclic gear train. The outer skirt 22 comprises the crown elements C2 and C3. The ring C4 of the fourth epicyclic gear train is fixedly mounted in a casing 23 of the transmission. We find in this configuration the kinematic links described in Figure 1. The immobilizing means 5 is constituted by the fixed jaw 13, the synchronizer player 12, the third hub 18 and the PS3 satellite carrier. When an actuator, not shown, moves the synchronizer player 12 to the right of FIG. 2, the satellite carrier PS3 is immobilized. The securing means 6 is constituted by the PS3 planet carrier, the third hub 18, the player 12, the jaw wheel 11, the second hub 17 and the sun gear P3. When the player 12 is

11 déplacé vers la gauche de la figure, le planétaire P3 est immobilisé par rapport au porte satellites PS3, ce qui a également comme effet d'immobiliser la couronne C3. Dans ce premier mode de réalisation, les machines électriques ME1 et ME2 sont disposées de part et d'autre d'une zone principale de la transmission comprenant l'ensemble des trains épicycloïdaux et du dispositif de changement de mode 4. Grâce à cette disposition, l'encombrement radial global de la transmission peut être optimisé de manière que le diamètre extérieur des machines électriques ME1 et ME2 ne dépasse pas les diamètres extérieurs du carter 23 entourant la jupe extérieure 22. Dans ce mode de réalisation, le dispositif de transmission 7 présente un rapport unitaire. Le dispositif de transmission 8 est constitué par le quatrième train épicycloïdal G4.  11 moved to the left of the figure, the sun gear P3 is immobilized relative to the PS3 satellite carrier, which also has the effect of immobilizing the crown C3. In this first embodiment, the electrical machines ME1 and ME2 are disposed on either side of a main zone of the transmission comprising all the planetary gear trains and the mode change device 4. Thanks to this arrangement, the overall radial size of the transmission can be optimized so that the outer diameter of the electrical machines ME1 and ME2 does not exceed the outside diameters of the housing 23 surrounding the outer skirt 22. In this embodiment, the transmission device 7 has a unitary relationship. The transmission device 8 is constituted by the fourth epicyclic gear G4.

On va, à l'aide de la figure 3, décrire un deuxième mode de réalisation correspondant également à la cinématique de la figure 1, et dans laquelle les deux machines électriques ME1 et ME2 sont disposées dans une même zone axiale et sur des axes décalés parallèlement à l'axe principal de la transmission. On retrouve dans ce deuxième mode de réalisation, le même agencement des premier et deuxième trains épicycloïdaux G1 et G2 ainsi que du train épicycloïdal de changement de mode G3. Nous ne décrivons ci-après que les éléments différents. Hormis les deux machines électriques, l'ensemble des autres composants de la transmission sont coaxiaux avec l'axe principal de la transmission. La transmission comprend successivement le moteur thermique MT, le dispositif d'amortissement de couple 10, le dispositif de transmission à rapport fixe 7, les machines électriques ME1 et ME2, des crabots fixes 13, le baladeur 12, la roue à crabots 1l, un flasque 24 et l'ensemble des composants décrits précédemment  With reference to FIG. 3, a second embodiment corresponding to the kinematics of FIG. 1 will be described, and in which the two electrical machines ME1 and ME2 are arranged in the same axial zone and on offset axes. parallel to the main axis of the transmission. In this second embodiment, we find the same arrangement of the first and second planetary gear G1 and G2 and the epicyclic G3 mode change train. We only describe below the different elements. Apart from the two electrical machines, all the other components of the transmission are coaxial with the main axis of the transmission. The transmission comprises, successively, the heat engine MT, the torque damping device 10, the fixed ratio transmission device 7, the electric machines ME1 and ME2, fixed clutches 13, the clutch 12, the clutch wheel 11, a clutch. flange 24 and all the components previously described

12 comme étant compris entre le porte satellites PS3 et le porte satellites PS2. Le dispositif de transmission à rapport fixe 7 comprend un pignon de sortie 25 de la première machine électrique ME1 et une denture 26 du premier moyeu 16. La deuxième machine électrique ME2 est prolongée par un arbre de sortie 27 s'étendant axialement jusqu'à la roue à crabots 11 et disposé radialement à l'extérieur du baladeur 12. L'arbre de sortie 27 est muni d'un pignon de sortie 28 engrenant avec des dentures extérieures de la roue à crabots 11.  12 as being between the PS3 satellite gate and the PS2 satellite gate. The fixed ratio transmission device 7 comprises an output gear 25 of the first electrical machine ME1 and a toothing 26 of the first hub 16. The second electrical machine ME2 is extended by an output shaft 27 extending axially to the wheel with claws 11 and arranged radially outside the player 12. The output shaft 27 is provided with an output gear 28 meshing with external teeth of the jaw wheel 11.

Le premier moyeu 16 s'étend axialement depuis la denture 26 jusqu'au planétaire Pl. Le deuxième moyeu 17 s'étend depuis le baladeur 12 jusqu'au porte satellites PS3. Le troisième moyeu 18 supporte uniquement la roue à crabots 11 et le flasque 24 fixé à la jupe extérieure 22.  The first hub 16 extends axially from the toothing 26 to the sun gear Pl. The second hub 17 extends from the player 12 to the planet carrier PS3. The third hub 18 only supports the jaw wheel 11 and the flange 24 attached to the outer skirt 22.

Dans une variante, les positions du baladeur 12 correspondant aux modes 1 et 2 sont telles que décrit dans le premier mode de réalisation ainsi que le contenu des deuxième et troisième moyeux 17 et 18. Dans cette variante, le moyeu de sortie 28 de la deuxième machine électrique ME2 engrène avec des dentures en couronne disposées sur la jupe extérieure 22. La figure 4 illustre les encombrements radiaux relatifs des différents composants du deuxième mode de réalisation décrit en figure 3. Les machines électriques ME1 et ME2 ont leurs axes disposés dans des demi-plans comprenant l'axe principal de la transmission qui forment entre eux un angle obtus, de préférence compris entre 110 et 150 . De cette manière, l'encombrement latéral des machines électriques ME1 et ME2 est réduit et occupe préférentiellement une partie basse de la transmission lorsque celle-ci est implantée selon un axe longitudinal du véhicule.  In a variant, the positions of the player 12 corresponding to the modes 1 and 2 are as described in the first embodiment and the contents of the second and third hubs 17 and 18. In this variant, the output hub 28 of the second ME2 electric machine meshes with crown teeth disposed on the outer skirt 22. Figure 4 illustrates the relative radial dimensions of the different components of the second embodiment described in Figure 3. The electrical machines ME1 and ME2 have their axes arranged in half planes comprising the main axis of the transmission forming between them an obtuse angle, preferably between 110 and 150. In this way, the lateral size of the electric machines ME1 and ME2 is reduced and preferably occupies a lower part of the transmission when the latter is located along a longitudinal axis of the vehicle.

13 Un actionneur électrique 29 est également disposé selon un axe parallèle à l'axe principal et permet d'engendrer la translation du baladeur 12. Un bornier 30 est disposé au-dessus des machines électriques ME1 et ME2 et permet de relier ces machines électriques à une zone d'électronique de puissance reliée notamment à la batterie B et disposée ailleurs dans le véhicule. Le fait que les machines ME1 et ME2 soient disposées dans une zone axiale traversée uniquement par l'arbre d'entrée 15 et le premier moyeu 16, permet de rapprocher ces machines électriques de l'axe principal de la transmission et de réduire l'encombrement radial global de la transmission.  An electric actuator 29 is also disposed along an axis parallel to the main axis and makes it possible to generate the translation of the player 12. A terminal block 30 is placed above the electrical machines ME1 and ME2 and makes it possible to connect these electrical machines to a power electronics zone connected in particular to the battery B and disposed elsewhere in the vehicle. The fact that the machines ME1 and ME2 are arranged in an axial zone traversed only by the input shaft 15 and the first hub 16 makes it possible to bring these electrical machines closer to the main axis of the transmission and to reduce the space requirement. overall radial of the transmission.

Claims (10)

REVENDICATIONS 1 - Transmission à dérivation de puissance pour véhicule automobile, présentant une forme générale allongée le long d'un axe principal et comprenant, à une extrémité, un arbre d'entrée (2, 15) destiné à être relié à un moteur thermique (MT) et à l'extrémité opposée, un arbre de sortie (19) destiné à être relié à un différentiel (20) ; la transmission comprenant deux machines électriques (ME1, ME2), ainsi que, disposés sur un même axe, au moins un premier (Gl) et un deuxième (G2) trains épicycloïdaux et un dispositif de changement de mode (4) comprenant un troisième train épicycloïdal (G3), caractérisée par le fait que les trains épicycloïdaux (Gl, G2) et le dispositif de changement de mode (4) sont regroupés dans une même zone axiale principale de la transmission.  1 - power transmission transmission for a motor vehicle, having a generally elongate shape along a main axis and comprising, at one end, an input shaft (2, 15) intended to be connected to a heat engine (MT ) and at the opposite end, an output shaft (19) for connection to a differential (20); the transmission comprising two electric machines (ME1, ME2), and, arranged on the same axis, at least a first (Gl) and a second (G2) epicyclic gear and a mode change device (4) comprising a third train epicyclic (G3), characterized in that the planetary gear trains (G1, G2) and the mode change device (4) are grouped in the same main axial zone of the transmission. 2 - Transmission selon la revendication 1, dans laquelle les machines électriques (ME1, ME2) présentent chacune un rotor implanté axialement en amont et/ou en aval de la zone axiale principale.  2 - Transmission according to claim 1, wherein the electrical machines (ME1, ME2) each have a rotor implanted axially upstream and / or downstream of the main axial zone. 3 - Transmission selon la revendication 1 ou 2, comprenant un dispositif d'amortissement (10) interposé axialement entre le moteur thermique (MT) et l'arbre d'entrée (15), au moins une première machine électrique (ME1) étant implantée axialement entre le dispositif d'amortissement (10) et la zone axiale principale, le dispositif de changement de mode (4) étant situé axialement entre la première machine électrique (ME1) et les premier et deuxième trains épicycloïdaux (Gl, G2).  3 - Transmission according to claim 1 or 2, comprising a damping device (10) interposed axially between the heat engine (MT) and the input shaft (15), at least a first electrical machine (ME1) being implanted axially between the damping device (10) and the main axial zone, the mode changing device (4) being situated axially between the first electric machine (ME1) and the first and second planetary gear trains (Gl, G2). 4 - Transmission selon l'une quelconque des revendications 1 à 3 dans laquelle le premier train épicycloïdal (G1) répartit la puissance entre une première voie mécanique de transmission de puissance comprenant le dispositif de changement de mode (4) et une voie électrique de transmission de puissance utilisant les deux machines électriques (ME1, ME2), le deuxième train épicycloïdal (G2) combinant les puissances reçues par la première voie mécanique et par la voie électrique avec une deuxième voie mécanique de transmission de puissance.  4 - Transmission according to any one of claims 1 to 3 wherein the first epicyclic gear (G1) distributes power between a first mechanical power transmission channel comprising the mode change device (4) and an electrical transmission channel power unit using the two electrical machines (ME1, ME2), the second epicyclic gear (G2) combining the power received by the first mechanical path and the electrical path with a second mechanical power transmission path. 5 - Transmission selon la revendication 4 dans laquelle la première voie mécanique de transmission de puissance relie un porte satellites (PSI) du premier train épicycloïdal (Gl) à une couronne (C2) du deuxième train épicycloïdal (G2).  5 - Transmission according to claim 4 wherein the first mechanical power transmission path connects a satellite carrier (PSI) of the first epicyclic gear (G1) to a ring (C2) of the second epicyclic gear (G2). 6 - Transmission selon l'une quelconque des revendications 1 à 5 dans laquelle les deux machines électriques (ME1, ME2) sont coaxiales à l'axe principal et la deuxième machine électrique (ME2) est située à l'extrémité axiale de la transmission du côté de l'arbre de sortie (19).  6 - Transmission according to any one of claims 1 to 5 wherein the two electrical machines (ME1, ME2) are coaxial with the main axis and the second electrical machine (ME2) is located at the axial end of the transmission of the side of the output shaft (19). 7 - Transmission selon la revendication 6 comprenant un quatrième train épicycloïdal (G4) dont un planétaire (P4) est fixe par rapport à un rotor de la deuxième machine électrique (ME2) et dont l'une des entrées, prise parmi le porte satellites (PS4) ou la couronne (C4), est fixée à la couronne (C2) du deuxième train épicycloïdal (G2), l'autre entrée, prise parmi le porte satellites (PS4) ou la couronne (C4), étant fixée à un carter (23) de la transmission.  7 - Transmission according to claim 6 comprising a fourth epicyclic gear (G4), a sun gear (P4) is fixed relative to a rotor of the second electric machine (ME2) and one of the inputs, taken from the satellite carrier ( PS4) or the ring gear (C4) is fixed to the ring gear (C2) of the second planetary gear train (G2), the other input, taken from the planet carrier (PS4) or the ring gear (C4), being fixed to a housing (23) of the transmission. 8 - Transmission selon l'une quelconque des revendications 1 à 5 dans laquelle les deux machines électriques (ME1, ME2) sont décalées parallèlement à l'axe principal et sont munies chacune d'un pignon de sortie (25, 28) engrenant chacun avec une roue (26, 11) coaxiale à l'axe principal.  8 - Transmission according to any one of claims 1 to 5 wherein the two electrical machines (ME1, ME2) are offset parallel to the main axis and are each provided with an output gear (25, 28) each meshing with a wheel (26, 11) coaxial with the main axis. 9 - Transmission selon la revendication 8, dans laquelle les deux machines électriques (ME1, ME2) sont situées dans une même zone axiale, le pignon de sortie (25) de la première machine électrique (ME1) étant situé axialement à l'opposé du dispositif de changement de mode (4).  9 - Transmission according to claim 8, wherein the two electrical machines (ME1, ME2) are located in the same axial zone, the output gear (25) of the first electrical machine (ME1) being located axially opposite the mode changing device (4). 10- Transmission selon la revendication 8 ou 9, dans laquelle l'arbre d'entrée (15) et l'arbre de sortie (19) sont coaxiaux à l'axe principal, la transmission présentant une section droite où l'angle ayant comme sommet l'axe principal et passant par les axes des deux machines électriques est inférieur à 150 , et est destiné à être orienté vers le bas du véhicule.  10- Transmission according to claim 8 or 9, wherein the input shaft (15) and the output shaft (19) are coaxial with the main axis, the transmission having a cross section where the angle having as the main axis and passing through the axes of the two electrical machines is less than 150, and is intended to be oriented towards the bottom of the vehicle.
FR0753413A 2007-02-21 2007-02-21 POWER DERIVATION TRANSMISSION FOR LONGITUDINAL IMPLANTATION IN A MOTOR VEHICLE Expired - Fee Related FR2912696B1 (en)

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EP2537695A1 (en) * 2011-06-20 2012-12-26 AISIN AI Co., Ltd. Drive unit for hybrid vehicle
WO2014029595A1 (en) * 2012-08-20 2014-02-27 Bayerische Motoren Werke Aktiengesellschaft Method for shifting an automatic hybrid transmission without interruption caused by tensile forces and automatic hybrid transmission
EP3095631A1 (en) * 2015-05-21 2016-11-23 ZF Friedrichshafen AG Gear box for a hybrid vehicle, and drive train for a hybrid vehicle
EP3100889A1 (en) * 2015-06-03 2016-12-07 ZF Friedrichshafen AG Transmission for a motor vehicle, and power train for a hybrid vehicle having such a transmission
DE102018005042B3 (en) 2018-06-25 2019-06-27 Daimler Ag Transmission device for a motor vehicle, in particular for a motor vehicle
DE102020105959A1 (en) * 2020-03-05 2020-10-22 Schaeffler Technologies AG & Co. KG Powershiftable planetary gear

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US5558589A (en) * 1995-07-20 1996-09-24 General Motors Corporation Two-mode, compound-split, electro-mechanical vehicular transmission
DE19606771A1 (en) * 1996-02-23 1997-08-28 Bayerische Motoren Werke Ag Hybrid drive for automobile
US6527659B1 (en) * 2001-09-24 2003-03-04 General Motors Corporation Two-mode input-compound split electromechanical transmission for front wheel drive vehicles
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2537695A1 (en) * 2011-06-20 2012-12-26 AISIN AI Co., Ltd. Drive unit for hybrid vehicle
US8534162B2 (en) 2011-06-20 2013-09-17 Aisin Ai Co., Ltd. Drive unit for hybrid vehicle
WO2014029595A1 (en) * 2012-08-20 2014-02-27 Bayerische Motoren Werke Aktiengesellschaft Method for shifting an automatic hybrid transmission without interruption caused by tensile forces and automatic hybrid transmission
EP3095631A1 (en) * 2015-05-21 2016-11-23 ZF Friedrichshafen AG Gear box for a hybrid vehicle, and drive train for a hybrid vehicle
EP3100889A1 (en) * 2015-06-03 2016-12-07 ZF Friedrichshafen AG Transmission for a motor vehicle, and power train for a hybrid vehicle having such a transmission
DE102018005042B3 (en) 2018-06-25 2019-06-27 Daimler Ag Transmission device for a motor vehicle, in particular for a motor vehicle
WO2020001859A1 (en) 2018-06-25 2020-01-02 Daimler Ag Transmission unit for a motor vehicle, in particular for a car
DE102020105959A1 (en) * 2020-03-05 2020-10-22 Schaeffler Technologies AG & Co. KG Powershiftable planetary gear

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