CN102089171A - 车辆驱动设备 - Google Patents

车辆驱动设备 Download PDF

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Publication number
CN102089171A
CN102089171A CN2009801275225A CN200980127522A CN102089171A CN 102089171 A CN102089171 A CN 102089171A CN 2009801275225 A CN2009801275225 A CN 2009801275225A CN 200980127522 A CN200980127522 A CN 200980127522A CN 102089171 A CN102089171 A CN 102089171A
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China
Prior art keywords
supporting walls
clutch
modified roll
electrical motor
roll mechanism
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CN2009801275225A
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CN102089171B (zh
Inventor
大野智仁
驹田英明
河口美嘉
出盐幸彦
柴田宽之
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Aisin AW Co Ltd
Toyota Motor Corp
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Aisin AW Co Ltd
Toyota Motor Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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
    • B60K6/405—Housings
    • 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
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • 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
    • 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
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/425—Temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/44—Drive Train control parameters related to combustion engines
    • B60L2240/441—Speed
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/50—Drive Train control parameters related to clutches
    • B60L2240/507—Operating parameters
    • 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 variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
    • F16H2037/0873—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft with switching, e.g. to change 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
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    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
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    • 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
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
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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
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    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structure Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

在驱动设备(2)中，其中第一电动发电机(4)、动力分配装置(5)、变速机构(10)、第二电动发电机(9)同轴地布置，在壳体(17)中设置有第一支撑壁(25)和第二支撑壁(26)，其中该第一支撑壁(25)邻接第二电动发电机(9)并支撑转子(21)的一端，而第二支撑壁(26)支撑转子(21)的另一端。第一支撑壁(25)上设置有变速机构(10)的切换部(41)。这种类型的结构使得驱动设备能够在轴向方向上变得更短。

Description

车辆驱动设备
技术领域
本发明涉及一种设置有电动机的车辆驱动设备。
背景技术
日本专利申请公开号No.6-328950(JP-A-6-328950)描述了一种车辆驱动设备，其设置有与内燃发动机的输出轴同轴地布置的发电机和电动机，并且在发电机与电动机之间布置有自动变速器的离合器和输出齿轮。此外，日本专利申请公开号No.2003-191761(JP-A-2003-191761)和日本专利申请公开号No.2005-127411(JP-A-2005-127411)也描述了与本发明相关的现有技术。
在JP-A-6-328950中描述的驱动设备中，支撑电动机的支撑壁与布置有自动变速器的离合器的支撑壁是分开的，这往往会增大驱动设备的轴向方向上的尺寸。因此，需要设计一种抑制轴向方向上的尺寸增加的方法，例如将自动变速器的组成元件布置在电动机转子的内周上，而这可能使结构复杂化。
发明内容
考虑到以上问题，本发明提供了一种能够抑制轴向方向上的尺寸增加的车辆驱动设备。
因此，本发明的第一方面涉及一种车辆驱动设备，所述车辆驱动设备设置有：第一电动机；第一差动机构，所述第一差动机构具有连接至内燃发动机的第一旋转元件、连接至所述第一电动机的第二旋转元件以及输出动力的第三旋转元件；中间旋转构件，所述中间旋转构件传递从所述第一差动机构的所述第三旋转元件输出的动力；第二电动机；壳体，所述第二电动机的定子固定至所述壳体；第二差动机构，所述第二差动机构具有连接至所述第二电动机的第四旋转元件、连接至所述壳体的第五旋转元件以及连接至所述中间旋转构件的第六旋转元件；输出部，所述输出部将动力传递到驱动轮；以及变速机构，所述变速机构具有对至所述输出部的动力传递路径进行切换的切换部，并且所述变速机构改变所述中间旋转构件旋转的速度并将所述旋转传递到所述输出部，所述第一电动机、所述第一差动机构、所述变速机构以及所述第二电动机同轴布置。在该车辆驱动设备中，在所述壳体中设置有第一支撑壁和第二支撑壁，其中所述第一支撑壁邻接所述第二电动机并支撑所述第二电动机的转子的一端，所述第二支撑壁支撑所述第二电动机的所述转子的另一端，并且所述变速机构的所述切换部布置在所述第一支撑壁上。这时，转子可由受第一支撑壁支撑的第一轴承和受第二支撑壁支撑的第二轴承支撑。
根据该驱动设备，变速机构的切换部布置在第一支撑壁上，其中该第一支撑壁支撑第二电动机的转子的一端。即，第二电动机的转子和切换部都能够由共同的第一支撑壁支撑，使得与第二电动机的转子和切换部由单独的支撑壁支撑的驱动设备相比，能够将该驱动设备制造得在轴向方向上更短。
另外，在上述驱动设备中，第二差动机构可布置在第二支撑壁的与第一支撑壁相反的一侧，并且连接至第二差动机构的第六旋转元件上的中间旋转构件可由第一支撑壁和第三支撑壁支撑，且第三支撑壁设置在第二差动机构的与第二支撑壁相反的一侧。这时，第二电动机的中间旋转构件可由受第一支撑壁支撑的第一轴承和受第三支撑壁支撑的第三轴承支撑。
根据上述驱动设备，中间旋转构件的一端可由第一支撑壁支撑，所以与一端由除第一支撑壁以外的支撑壁支撑的情况相比，能够抑制中间旋转构件在轴向方向上的尺寸增加。
另外，在上述驱动设备中，第二差动机构可构造成具有相对于彼此差动旋转的恒星齿轮、齿圈以及行星架的行星齿轮组。另外，恒星齿轮可对应于第四旋转元件，行星架可对应于第五旋转元件，而齿圈可对应于第六旋转元件。
另外，在上述驱动设备中，第一电动机、第一差动机构、变速机构、第二电动机以及第二差动机构可从内燃发动机侧起依序在同一轴线上布置，并且输出部可布置在第一差动机构与变速机构的外周侧。在这种情况下，输出部布置在第一差动机构与变速机构的外周侧，所以与输出部紧跟着第一差动机构或变速部布置的情况相比，能够容易地将驱动设备制造得在轴向方向上更短。
此外，变速机构可包括：第三差动机构，第三差动机构构造成具有相对于彼此差动旋转的恒星齿轮、齿圈以及行星架的双小齿轮行星齿轮组。此外，离合器和制动器被设置作为切换部，离合器选择性地使恒星齿轮与行星架连接及分开，制动器选择性地使恒星齿轮与壳体连接及分开。并且，齿圈可连接至输出部并且行星架可连接至中间旋转构件。根据这种类型的驱动设备，动力从齿圈输出。因此，与动力从诸如恒星齿轮或行星架之类的其它元件输出到位于变速装置外周上的输出部的情况相比，能够容易地将动力从变速装置的外周输出到输出部，而不会增大轴向方向上的尺寸。
另外，在上述驱动设备中，输出部可具有：与第三差动机构的齿圈一起旋转的副驱动齿轮；与副驱动齿轮相啮合的副从动齿轮；以及将动力从副从动齿轮传递到驱动轮的差动单元。并且，副驱动齿轮、副从动齿轮以及差动单元都可由共同的壳体支撑。
根据这种驱动设备，副驱动齿轮、副从动齿轮以及差动单元都由共同的壳体支撑。因此，能够提供组装误差小并具有高支撑刚度的驱动设备。
另外，在上述驱动设备中，离合器可构造成多片离合器，多片离合器具有：多个第一离合器片，第一离合器片设置在行星架上从而与行星架一起旋转；多个第二离合器片，第二离合器片布置在第一离合器片之间并且能够与恒星齿轮一起旋转；以及离合器活塞，离合器活塞将第二离合器片和第一离合器片压到一起；并且制动器可构造成多片制动器，多片制动器具有：多个第一制动器片，第一制动器片设置在壳体上从而在旋转方向上被固定至壳体；多个第二制动器片，第二制动器片布置在第一制动器片之间并且能够与恒星齿轮一起旋转；以及制动器活塞，制动器活塞将第一制动器片和第二制动器片压到一起。此外，离合器的第二离合器片与制动器的第二制动器片可以在轴向方向上彼此重叠地设置在共同的旋转构件上，其中共同的旋转构件能够与恒星齿轮一起旋转。
在上述驱动设备中，制动器和离合器布置成使第二离合器片与第二制动器片在轴向方向上彼此重叠，所以与制动器和离合器在轴向方向上排成列的情况相比，能够使驱动设备在轴向方向上更短。另外，第二离合器片和第二制动器片被设置在共同的旋转构件上，从而能够减少零件数量，因而能够降低驱动设备的尺寸、重量和成本。
此外，在上述驱动设备中，第二差动机构可构造成具有固定行星架的单小齿轮行星齿轮组，其中固定行星架被设置作为第五旋转元件并且固定至第二支撑壁。并且，在第二支撑壁中设置有润滑油道，润滑油道将已经对第二电动机进行过冷却的油引导到由固定行星架支撑的小齿轮处。根据这种类型的驱动设备，能够利用第二支撑壁形成润滑油道，使得与润滑油道独立于第二支撑壁形成的情况相比，该润滑油道的结构可以更加简单。
如上所述，通过本发明的驱动设备，第二电动机的转子和切换部均由共同的第一支撑壁支撑。因此，与第二电动机的转子与切换部由单独的支撑壁支撑的驱动设备相比，该驱动设备能够制造得在轴向方向上更短。
附图说明
在参照附图对本发明示例性实施方式进行的以下详细描述中，将描述本发明的特征、优点、以及技术和工业意义，在附图中，相似的标号指代相似的元件，并且其中：
图1是已经结合有根据本发明示例性实施方式所述的驱动设备的车辆的整体结构示意图；
图2是图1所示的驱动设备的细节图；
图3是图2所示的减速机构及减速机构周围区域的放大图；以及
图4是图2所示的切换部及切换部周围区域的放大图。
具体实施方式
图1是已经结合有根据本发明示例性实施方式所述的驱动设备的车辆的整体结构示意图，图2是图1所示的驱动设备的细节图。车辆1构造成所谓的混合动力车。众所周知，混合动力车是设置有内燃发动机和电动机作为行驶用驱动力源的车辆。车辆1具有FF式布局，其中驱动轮和内燃发动机定位在车辆前部。
驱动设备2包括第一电动发电机4、动力分配装置5以及中间轴6，其中动力分配装置5用作连接至内燃发动机3和第一电动发电机4二者的第一差动机构，而中间轴6用作中间旋转构件，动力从动力分配装置5传递到该中间旋转构件。驱动设备2还设置有第二电动发电机9，该第二电动发电机9经由减速机构8连接至中间轴6，该减速机构8用作第二差动机构。来自中间轴6的动力经由变速机构10传递到输出部11，并且动力从该输出部11传递到左右驱动轮12。如图所示，第一电动发电机4、动力分配装置5、变速机构10、第二电动发电机9以及减速机构8从内燃发动机3侧起以该顺序同轴布置。
内燃发动机3是火花点火式多缸内燃发动机，其通过输入轴15将动力输出到动力分配装置5。该输入轴15与中间轴6在同一轴线上布置，使得输入轴15与中间轴6绕共同的轴线Ax1(见图2)旋转。在输入轴15与内燃发动机3之间布置有减振器16，该减振器16吸收内燃发动机3的扭矩波动。
第一电动发电机4和第二电动发电机9具有相同的结构，并且既能用作电动机又能用作发电机。第一电动发电机4设置有固定至壳体17的定子18以及同轴地布置在定子18的内周侧的转子19。类似地，第二电动发电机9设置有固定至壳体17的定子20以及同轴地布置在定子20的内周侧的转子21。第一电动发电机4是本发明第一电动机的一个示例，而第二电动发电机9是本发明的第二电动机的一个示例。如图2所示，第二电动发电机9的转子21具有支撑部21a，该支撑部21a支撑由层叠的电磁钢板形成的转子芯。该支撑部21a以下列方式同轴地布置在中间轴6的外周上，即，其能够相对于中间轴6旋转。第二电动发电机9的转子21的一端(图中的右端)由第一支撑壁25经由轴承27以可旋转的方式支撑，而转子21的另一端(图中的左端)由第二支撑壁26经由轴承28以可旋转的方式支撑。第一支撑壁25和第二支撑壁26固定至壳体17从而相对于壳体17静止。
动力分配装置5构造成具有三个能够相对于彼此差动旋转的旋转元件的单小齿轮行星齿轮组。这三个旋转元件为：恒星齿轮Su1，它是具有外齿的齿轮；齿圈Ri1，它是具有内齿的齿轮，与恒星齿轮Su1在同一轴线上布置；以及行星架Cr1，它以可自转且可公转的方式保持与恒星齿轮Su1和齿圈Ri1都啮合的小齿轮30。在该示例性实施方式中，输入轴15连接至行星架Cr1，第一电动发电机4连接至恒星齿轮Su1，并且中间轴6连接至齿圈Ri1。因此，在该示例性实施方式中，行星架Cr1是本发明的第一旋转元件的示例，恒星齿轮Su1是本发明的第二旋转元件的示例，而齿圈Ri1是本发明的第三旋转元件的示例。
减速机构8是具有三个能够相对于彼此差动旋转的旋转元件的单小齿轮行星齿轮组。这三个旋转元件为：恒星齿轮Su2，它是具有外齿的齿轮，布置在第二支撑壁26的与第一支撑壁25相反的一侧；齿圈Ri2，它是具有内齿的齿轮，与恒星齿轮Su2在同一轴线上布置；以及行星架Cr2，它以可自转且可公转的方式保持与恒星齿轮Su2和齿圈Ri2都啮合的小齿轮31。在该示例性实施方式中，第二电动发电机9连接至恒星齿轮Su2，壳体17(即第二支撑壁26)连接至行星架Cr2，并且中间轴6连接至齿圈Ri2。因此，在该示例性实施方式中，恒星齿轮Su2是本发明的第四旋转元件的示例，行星架Cr2是本发明的第五旋转元件的示例，而齿圈Ri2是本发明的第六旋转元件的示例。此外，行星架Cr2是本发明的固定行星架的示例。
图3是图2所示的减速机构8及减速机构8周围区域的放大图。如图所示，减速机构8的行星架Cr2上设置有用于各个小齿轮31的支撑轴34，以便以可旋转的方式支撑小齿轮31。在该支撑轴34中形成有供油道34a。该供油道34a通向支撑轴34的外周表面以及支撑轴34的第二支撑壁26侧的端部。形成于第二支撑壁26中的润滑油道26a的一端连接至该供油道34a。该润滑油道26a的另一端通向第二电动发电机9侧。因此，如图3中的箭头所示，能够将已经用于冷却第二电动发电机9的油通过形成于第二支撑壁26中的润滑油道26a和形成于支撑轴34中的供油道34a而引导到小齿轮31处。通过这种方式，能够利用第二支撑壁26形成润滑油道26a，这使得与润滑油道独立于第二支撑壁26形成的情况相比，该润滑油道的结构可以更为简单。
如图1至图3所示，齿圈Ri2与中间轴6的左侧端部花键联接，使齿圈Ri2不能相对于中间轴6旋转(见图3)。该中间轴6由第一支撑壁25、第二支撑壁26以及设置在减速机构8的与第二支撑壁26相反的一侧上的第三支撑壁35支撑，且第二电动发电机9的转子21和减速机构8布置在外周。第三支撑壁35固定至壳体17。如图2和图3所示，轴承36介于第三支撑壁35与中间轴6之间，使得中间轴6由第三支撑壁35经由该轴承36以可旋转的方式支撑。
变速机构10包括差动机构40和切换部41，该差动机构40构造成具有三个能够相对于彼此差动旋转的旋转元件的双小齿轮行星齿轮组，该切换部41改变到输出部11的动力传递路径。差动机构40是本发明的第三差动机构的一个示例。差动机构40具有：恒星齿轮Su3，它是具有外齿的齿轮；齿圈Ri3，它是具有内齿的齿轮，与恒星齿轮Su3在同一轴线上布置；以及行星架Cr3，它以可自转且可公转的方式保持第一小齿轮42和第二小齿轮43，其中第一小齿轮42与恒星齿轮Su3和第二小齿轮43相啮合，且第二小齿轮43与第一小齿轮42和齿圈Ri3相啮合。切换部41具有离合器CL和制动器B。离合器CL选择性地使恒星齿轮Su3与行星架Cr3连接和分离，而制动器B选择性地使恒星齿轮Su3与壳体17连接和分离。
变速机构10通过改变切换部41的离合器CL和制动器B的操作状态而选择性地确立具有高传动比的第一速度和具有低传动比的第二速度。通过应用制动器B以将恒星齿轮Su3连接至壳体17、并使离合器CL释放以使恒星齿轮Su3与行星架Cr3分离而确立第一速度。另一方面，通过释放制动器B以使恒星齿轮Su3与壳体17分离、并应用离合器CL以将恒星齿轮Su3连接至行星架Cr3而确立第二速度。如已知的那样，基于车辆速度和加速器操作量来执行变速机构10的变速控制。
图4是图2所示的切换部41及切换部41周围区域的放大图。如该图所示，切换部41布置在与第二电动发电机9相邻的第一支撑壁25上，而离合器CL与制动器B在轴向方向上彼此重叠地紧凑地布置。离合器CL构造成多片离合器，其具有：多个(图中为四个)第一离合器片45，这些第一离合器片45设置在差动机构40的行星架Cr3上从而能够与行星架Cr3一起旋转；多个(图中为四个)第二离合器片46，这些第二离合器片46布置在第一离合器片45之间并且能够与恒星齿轮Su3一起旋转；以及离合器活塞48，用于将第二离合器片46和第一离合器片45压到一起。同时，制动器B构造成多片制动器，其具有：多个(图中为四个)第一制动器片49，这些第一制动器片49设置在壳体17上从而能够与壳体17一起旋转；多个(图中为四个)第二制动器片50，这些第二制动器片50设置在第一制动器片49之间并且能够与恒星齿轮Su3一起旋转；以及制动器活塞51，用于将第一制动器片49与第二制动器片50压到一起。离合器CL的第二离合器片46和制动器B的第二制动器片50在轴向方向上彼此重叠地设置在共同的旋转构件52上，其中该旋转构件52能够与恒星齿轮Su3一起旋转。第二离合器片46装配在旋转构件52的径向内侧，而第二制动器片50装配在旋转构件52的径向外侧。
离合器CL的离合器活塞48容纳在与旋转构件52相邻的活塞腔55中。在该活塞腔55中设置有复位弹簧56，复位弹簧56迫使离合器活塞48离开离合器片45和46。可通过用未示出的控制阀控制向活塞腔55的液压流体的供给来使离合器CL在应用状态与释放状态之间进行切换，其中在应用状态中，离合器CL使恒星齿轮Su3与行星架Cr3相连接，而在释放状态中，离合器CL使恒星齿轮Su3与行星架Cr3相分离。同时，制动器B的制动器活塞51容纳在由第一支撑壁25形成的活塞腔57中。在该活塞腔57中设置有复位弹簧58，复位弹簧58迫使制动器活塞51离开制动器片49和50。与离合器CL类似，可通过用未示出的控制阀控制向活塞腔57的液压流体的供给来使制动器B在应用状态与释放状态之间进行切换，其中在应用状态中，制动器B使恒星齿轮Su3与壳体17相连接，而在释放状态中，制动器B使恒星齿轮Su3与壳体17相分离。
与制动器B和离合器CL沿轴向方向排列的情况相比，将制动器B与离合器CL布置成第二离合器片46与第二制动器片50在轴向方向上彼此重叠使得切换部41在能够轴向方向上变得更短。并且，将第二离合器片56与第二制动器片50设置在共同的旋转构件52上使得能够减少零件数量，从而能够降低驱动设备的尺寸、重量及成本。
如图1和图2所示，输出部11布置在动力分配装置5和变速机构10的外周侧。因此，与输出部11紧跟着动力分配装置5或变速机构10布置的情况相比，能够容易地将该驱动设备制造得更短。并且，输出部11包括：副驱动齿轮60，其与差动机构40的齿圈Ri3一起旋转；副从动齿轮61，其与副驱动齿轮60相啮合；以及差动单元62，其将动力从副从动齿轮61传递到驱动轮12(见图1)。在副从动齿轮61与差动单元62之间安装有中间齿轮63，该中间齿轮63与副从动齿轮61在同一轴线上并与副从动齿轮61一起旋转。中间齿轮63与设置在差动单元62的壳体上的从动齿轮64相啮合。如图2所示，副驱动齿轮60、副从动齿轮61、以及差动单元62都由共同的壳体17支撑。因此，与输出部11的组成元件由与壳体17分离的外壳支撑的情况相比，能够使输出部11的组成元件的组装误差更小并且容易具有更大的支撑刚度。
根据上述驱动设备2，第二电动发电机9的转子21和切换部41都能够由共同的第一支撑壁25支撑，这使得与它们由不同支撑壁支撑的情况相比，驱动设备2能够更短。并且，中间轴6由第一支撑壁25和第三支撑壁35支撑。因此，与中间轴6的端部由除第一支撑壁25以外的支撑壁支撑的情况相比，能够抑制中间轴6在轴向方向上的尺寸增加。
虽然已经参照本发明的示例性实施方式描述了本发明，但是应当理解，本发明并不局限于示例性实施方式或结构。相反，本发明意在覆盖本发明范围内的各种变型和等效布置。例如，以上所述的驱动设备2的组成元件的布置仅仅作为示例。只要第一电动发电机4、动力分配装置5、变速机构10、第二电动发电机9以及减速机构8同轴地布置并且变速机构10和第二电动发电机9彼此相邻，这些组成元件的布置顺序可以根据需要而改变。另外，上述示例性实施方式的差动机构仅仅作为示例。可以对这些差动机构进行改变，只要改变后的差动机构在机械上等效即可。此外，差动机构由行星齿轮组实现，但本发明并不局限于此。例如，上述示例性实施方式中的全部或部分行星齿轮组可以替换成行星滚轮机构，该行星滚轮机构具有摩擦轮(即滚轮)——而非齿轮——作为旋转元件。

Claims (10)

1.一种车辆驱动设备，所述车辆驱动设备设置有：
第一电动机；
第一差动机构，所述第一差动机构具有连接至内燃发动机的第一旋转元件、连接至所述第一电动机的第二旋转元件以及输出动力的第三旋转元件；
中间旋转构件，所述中间旋转构件传递从所述第一差动机构的所述第三旋转元件输出的动力；
第二电动机；
壳体，所述第二电动机的定子固定至所述壳体；
第二差动机构，所述第二差动机构具有连接至所述第二电动机的第四旋转元件、连接至所述壳体的第五旋转元件以及连接至所述中间旋转构件的第六旋转元件；
输出部，所述输出部将动力传递到驱动轮；以及
变速机构，所述变速机构具有对至所述输出部的动力传递路径进行切换的切换部，并且所述变速机构改变所述中间旋转构件旋转的速度并将所述旋转传递到所述输出部，所述第一电动机、所述第一差动机构、所述变速机构以及所述第二电动机同轴布置，
所述车辆驱动设备的特征在于：
在所述壳体中设置有第一支撑壁和第二支撑壁，其中所述第一支撑壁邻接所述第二电动机并支撑所述第二电动机的转子的一端，所述第二支撑壁支撑所述第二电动机的所述转子的另一端，并且所述变速机构的所述切换部布置在所述第一支撑壁上。
2.如权利要求1所述的驱动设备，其特征在于，所述转子由受所述第一支撑壁支撑的第一轴承和受所述第二支撑壁支撑的第二轴承支撑。
3.如权利要求1或2所述的驱动设备，其特征在于，所述第二差动机构布置在所述第二支撑壁的与所述第一支撑壁相反的一侧，并且连接至所述第二差动机构的所述第六旋转元件上的所述中间旋转构件由所述第一支撑壁和第三支撑壁支撑，所述第三支撑壁设置在所述第二差动机构的与所述第二支撑壁相反的一侧。
4.如权利要求3所述的驱动设备，其特征在于，所述第二电动机的所述中间旋转构件由受所述第一支撑壁支撑的所述第一轴承和受所述第三支撑壁支撑的第三轴承支撑。
5.如权利要求1至4中任一项所述的驱动设备，其特征在于，所述第二差动机构构造成具有相对于彼此差动旋转的恒星齿轮、齿圈以及行星架的行星齿轮组；所述恒星齿轮对应于所述第四旋转元件，所述行星架对应于所述第五旋转元件，而所述齿圈对应于所述第六旋转元件。
6.如权利要求1至5中任一项所述的驱动设备，其特征在于，所述第一电动机、所述第一差动机构、所述变速机构、所述第二电动机以及所述第二差动机构从内燃发动机侧起依序在同一轴线上布置，并且所述输出部布置在所述第一差动机构与所述变速机构的外周侧。
7.如权利要求6所述的驱动设备，其特征在于，所述变速机构包括第三差动机构，所述第三差动机构构造成具有相对于彼此差动旋转的恒星齿轮、齿圈以及行星架的双小齿轮行星齿轮组；并且离合器和制动器被设置作为切换部，所述离合器选择性地使所述恒星齿轮与所述行星架连接及分开，所述制动器选择性地使所述恒星齿轮与所述壳体连接及分开；并且所述齿圈连接至所述输出部且所述行星架连接至所述中间旋转构件。
8.如权利要求7所述的驱动设备，其特征在于，所述输出部具有：与所述第三差动机构的所述齿圈一起旋转的副驱动齿轮；与所述副驱动齿轮相啮合的副从动齿轮；以及将动力从所述副从动齿轮传递到所述驱动轮的差动单元；并且所述副驱动齿轮、所述副从动齿轮以及所述差动单元都由共同的所述壳体支撑。
9.如权利要求7所述的驱动设备，其特征在于，
所述离合器构造成多片离合器，所述多片离合器具有：多个第一离合器片，所述第一离合器片设置在所述行星架上从而与所述行星架一起旋转；多个第二离合器片，所述第二离合器片布置在所述第一离合器片之间并且能够与所述恒星齿轮一起旋转；以及离合器活塞，所述离合器活塞将所述第二离合器片和所述第一离合器片压到一起；
所述制动器构造成多片制动器，所述多片制动器具有：多个第一制动器片，所述第一制动器片设置在所述壳体上从而在旋转方向上被固定至所述壳体；多个第二制动器片，所述第二制动器片布置在所述第一制动器片之间并且能够与所述恒星齿轮一起旋转；以及制动器活塞，所述制动器活塞将所述第一制动器片和所述第二制动器片压到一起；并且
所述离合器的所述第二离合器片与所述制动器的所述第二制动器片在轴向方向上彼此重叠地设置在共同的旋转构件上，其中所述共同的旋转构件能够与所述恒星齿轮一起旋转。
10.如权利要求1至9中任一项所述的驱动设备，其特征在于，所述第二差动机构构造成具有固定行星架的单小齿轮行星齿轮组，其中所述固定行星架被设置作为第五旋转元件并且固定至所述第二支撑壁；并且在所述第二支撑壁中设置有润滑油道，所述润滑油道将已经对所述第二电动机进行过冷却的油引导到由所述固定行星架支撑的小齿轮处。
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