CN1910065B - 包括平滑换挡自动变速器的混合动力系统 - Google Patents

包括平滑换挡自动变速器的混合动力系统 Download PDF

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Publication number
CN1910065B
CN1910065B CN200580003096.6A CN200580003096A CN1910065B CN 1910065 B CN1910065 B CN 1910065B CN 200580003096 A CN200580003096 A CN 200580003096A CN 1910065 B CN1910065 B CN 1910065B
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power
producer
motor
input
output
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CN1910065A (zh
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K·D·贝蒂
R·A·涅卢姆斯
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BorgWarner Transmission Systems Monaco SAM
Eaton Corp
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Eaton Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/30—Control strategies involving selection of transmission gear ratio
    • 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
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
    • 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
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; 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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • B60K6/442—Series-parallel switching 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • 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
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • F16H3/126—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches using an electric drive
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H2003/0818—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts comprising means for power-shifting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
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    • F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H2306/00—Shifting
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/44—Removing torque from current 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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    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/091—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
    • F16H3/0915—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft with coaxial input and output shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19223—Disconnectable counter shaft

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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)
  • Automation & Control Theory (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Transmission Device (AREA)
  • Structure Of Transmissions (AREA)

Abstract

本文提供了一种动力系统(20)，其包括原动机(22)，以及具有输入(42)、至少两种传动比以及输出(44)的变速齿轮变速器(24)。这种动力系统(20)还包括功率分路器(27)，其配置成可将输入(42)和输出(44)之一施加在变速器(24)上的功率传递至输入(42)和输出(44)中的另一个上。本文还提供了一种传动系统和有助于该传动系统换挡的方法。

Description

包括平滑换挡自动变速器的混合动力系统
发明背景 
发明领域
本发明涉及动力系统，具体涉及包括自动变速器的混合动力系统。 
相关技术的描述
不需要车辆驾驶员操作车辆主离合器的自动机械传动系统(所谓的″双踏板系统″)在本领域中是已知的。当主离合器接合并将扭矩从车辆发动机传递至变速器上时，通常存在较大的扭矩载荷或″扭矩锁″将传动齿轮啮合装置保持在特定的位置。这种扭矩载荷使变速器即使不是不可能，也是非常难于换挡至空挡，或者在没有显著降低扭矩载荷的条件下难以变换齿轮。一种减轻扭矩载荷的方法是使主离合器分离，其断开了输入部件和输出部件之间的结合。分离主离合器就允许扭矩载荷归于零，并容许操纵器或自动传动系统换挡到空挡或变换齿轮。然而，在主离合器保持接合的条件下使变速器换挡在许多情形下是优选的，因为这种换挡倾向于具有较高的换挡质量，并且/或者对动力系统造成的磨损较小。 
出于这些以及其它原因，需要提供一种有助于改变自动变速器中的传动比的改良系统和方法。 
发明概要
提供了一种包括原动机和变速齿轮变速器的动力系统，该变速齿轮变速器具有输入、至少两种传动比和输出。该动力系统还包括功率分路器(shunt)，其配置成将输入和输出之一所施加在变速器上的功率传递至输入和输出中的另一个上。本发明还提供了一种传动系统和 有助于该传动系统换挡的方法。 
附图简介
现在将参照附图通过示例来描述本发明的实施例，其中： 
图1是显示根据本发明一个实施例的车辆动力系统的框图； 
图2是显示根据本发明一个实施例的变速器的示意图； 
图3是显示根据本发明另一实施例的变速器的示意图； 
图4是显示在图2和图3的变速器中使用的电功率分路器的框图； 
图5是显示在图2和图3的变速器中使用的液压功率分路器的框图。 
本发明的详细描述 
图1是显示根据本发明一个实施例的动力系统20的框图。在所示的实施例中，动力系统20包括原动机22、火花点火或压缩点火的内燃机、变速齿轮变速器24和主离合器26。动力系统20还包括功率分路器27，其包括第一马达/发生器28和第二马达/发生器30。用语“马达/发生器”用于描述基于功率输入而产生旋转输出和/或基于旋转输入而产生功率输出的装置。这种马达/发生器包括但不限于电动机/发电机和液压马达/液压泵。 
在一个实施例中，动力系统20还包括电子控制装置(ECU)32，其用于控制原动机22、变速器24和马达/发生器28，30的操作。在本发明的一个实施例中，ECU32包括可编程数字计算机，其配置成可接受各种输入信号，包括但不限于原动机22的操作速度、变速器的输入速度、所选的传动比、变速器的输出速度和车辆速度。ECU32根据逻辑规则来处理这些信号，以便控制动力系统20的操作。为了支持这种控制，原动机22和变速器24各自可选择性地包括由ECU32控制的其自身控制器(分别为34和36)。然而，本发明并不限于ECU32以及控制器34和36的任何特定类型或配置，或者受限于用于调整动力 系统20操作的任何特定控制逻辑。例如，ECU32可执行控制器34或36的功能。 
如以下进一步详细讨论所述，动力系统20还可包括至少一个能量存储装置38，其用于为操作第一和第二马达/发生器28，30提供能量。例如，当第一和第二马达/发生器28，30用作液压马达/液压泵时，能量存储装置38可包括液压蓄能器。当如此配置时，通过本领域中已知的控制器39(例如参见图5)，就可为各液压马达/液压泵28，30提供与能量存储装置38的连通。作为备选，当第一和第二马达/发生器28，30用作电动机/发电机时，能量存储装置38可包括电池、电池组或电容器。当如此配置时，通过本领域中已知的驱动逆变器40(例如参见图4)，就可为各电动机/发电机28，30提供与能量存储装置38的电连通。 
参看图2，其显示了变速器24的一个实施例。在所示的实施例中，变速器24包括输入轴42、主轴或输出轴44、通常与输入轴和输出轴42和44平行地延伸的副轴46，以及一个或多个设置在轴42，44和46上和/或其周围的齿轮。在一种特定的配置中，第一马达/发生器28连接在输入轴42上，第二马达/发生器30连接在输出轴44上。当第一和第二马达/发生器28，30用作电动机/发电机时，如图2所示，输入轴和输出轴42，44连接起来，以便随着定位在定子50中的转子48一起旋转。各转子48可用花键联接在相应的轴42，44上而随其一起旋转；然而，也可使用本领域中已知的其它配置来连接转子48和轴42，44。虽然图2中显示了第一和第二马达/发生器28，30包括电动机/发电机，但并不必局限于此。此外，虽然变速器被显示并描述为副轴的配置，但是本发明的范围还包括其它的配置，包括行星齿轮传动配置。 
输入轴42可通过离合器26(图2中未显示)而连接在原动机22上。在本发明的一个实施例中，离合器26是自动的主离合器。因而，离合器26的接合和分离自动地进行，而无需车辆驾驶员促动踏板或进行其它输入。然而，其中车辆驾驶员控制离合器接合和分离的其它离合器设计也属于本发明的范围内。 
连接在输入轴42上的是第一前齿轮52，其与连接在副轴46上的第二前齿轮54相啮合。副轴46携带许多固定在副轴46上、并因此随副轴46旋转的输入齿轮56，58，60，62和64。设置在副轴46上的输入齿轮的数量并不限于图2中所示的数量，并且可根据变速器24中所需的传动比数而包括更多或更少的输入齿轮。用语“齿轮”用于限定图2中所示带齿的轮，以及将该轮的带齿特征直接加工到输入轴和输出轴42，44和副轴46上。 
可旋转地支撑在输出轴44上的是多个输出齿轮66，68，70，72和74。不同于副轴46上的输入齿轮56-64，输出齿轮66-74可自由地绕输出轴44旋转。输入齿轮56-64各自与相应的输出齿轮66-74相啮合，从而在变速器24中产生许多传动比。如同输入齿轮56-64一样，设置在输出轴44上的输出齿轮66-74的数量并不限于图2中所示的数量。 
副轴46上还连接着随副轴46一起旋转的反向输入齿轮76。反向输入齿轮76与空转齿轮78相啮合，空转齿轮78则与可旋转地支撑在输出轴44上的反向输出齿轮80相啮合。空转齿轮78改变输出齿轮80的旋转方向，输出齿轮80在与输出轴44接合时将导致车辆反向地移动，而其它输出齿轮66-74在与输出轴44接合时导致车辆在前进方向上移动。 
在图2所示的实施例中，变速器24还包括可轴向移动的离合器82，84，86和88，例如非同步化单动或双动的爪形离合器，其用花键联接在输出轴上而随其一起旋转。在一个实施例中，离合器82可在轴向方向上朝第一马达/发生器28移动，以便固定输出轴44而使其随输入轴42(通过前齿轮52)一起旋转，或者在相反方向上移动，以便固定输出齿轮66而使其随输出轴44一起旋转。类似地，离合器84-88可在相反的轴向方向上移动，以便将其相应的输出齿轮旋转式地固定在输出轴44上。 
如上述，ECU32在基于接收和计算各种输入信号的基础上将命令传递给动力系统20的部件。这些命令可包括对换挡控制装置(未显示) 的传动比选择命令，该换挡控制装置间接地使离合器82，84，86和88移动，以便在副轴46和输出轴44之间建立传动比。换挡控制装置可以是传统装置，例如X-Y机电换挡促动器系统或任何其它合适的装置，这些装置通过导轨型换挡操纵机构(也未显示)来控制各离合器82，84，86和88的轴向位置。作为备选，离合器82，84，86和88可以是液压和/或机电操作的，而无须使用导轨型换挡操纵机构。 
参看图3，其显示了变速器24的另一实施例。在这个实施例中，第一马达/发生器28通过变速器24的动力输出装置(PTO)而连接在变速器24的输入上。在图3所示的典型配置中，第一马达/发生器28连接在动力输出齿轮90上，其与副轴46上的第二前齿轮54相啮合。作为备选，第一马达/发生器28可与离合器26上游侧的齿轮或其它装置(未显示)相连接。例如，马达/发生器28可通过发动机辅助传动皮带而连接在原动机22上，这种传动皮带例如为用于交流发电机或动力转向泵的那种传动皮带。 
现在将参照图纸1-3来描述动力系统20的操作。在第一操作模式下，功率从输入轴42传递至副轴46，之后通过协作的输入/输出齿轮(如齿轮64和74)而传递至输出轴44。如上所述，通过操作其中一个离合器82，84，86和88来选定传动比，以便固定输出齿轮(例如齿轮74)和输出轴44的旋转。 
当主离合器26接合、并且通过变速器24将功率从原动机22传递至输出轴44上时，通常有大的扭矩载荷或″扭矩锁″将该接合离合器保持在特定位置。在传动比变化或″换挡″期间，施加在输出齿轮66-74上的功率必须接近零值，以便接合在所选输出齿轮(例如齿轮74)上的离合器(例如离合器86)可分离，并且新的输出齿轮可接合上。为了动力系统20的最佳操作，还需要通过变速器24连续地将功率从原动机22施加在输出轴44上。为了满足在换挡期间的这些操作，第一马达/发生器28可用作发生器来吸收原动机22的功率，而第二马达/发生器30可用作马达，以便将功率施加在输出轴44上。这种操作保持了输 出轴44上的功率，并将通过变速器24所传递的功率减少至零值，这就可克服由所选输出齿轮强加于接合的输出轴离合器上的″扭矩锁″。一旦在选定的输出齿轮(例如齿轮74)与接合离合器(例如离合器86)之间传递的功率显著地减小或下降至零，则接合离合器可分离，之后在适当的时候选择不同的传动比。 
在机动车应用中，传动系扭矩可通过输入轴42从原动机22传递至变速器24，之后通过输出轴44传递至主动轮上。在这种方式下，传动系扭矩被认为是正向的。作为备选，例如当车辆减速至停止时，传动系扭矩可通过输出轴44从车辆的主动轮传递至变速器24中，之后通过输入轴42传递至原动机22上。在这种方式下，传动系扭矩被认为是反向的。当传动系扭矩是反向时，第二马达/发生器30可用作发生器来吸收输出轴44的功率，而第一马达/发生器28可用作马达而通过输入轴42驱动原动机，以便保持输出轴44至输入轴42的功率，并且减轻所选输出齿轮(例如齿轮74)上的扭矩，以克服由接合的输出轴离合器(例如离合器86)强加于所选输出齿轮(例如齿轮74)上的任何″扭矩锁″。之后，接合的输出轴离合器(例如离合器86)可分离，之后在适当的时候选择不同的传动比。 
在本发明的一个实施例中，在换挡期间使第二马达/发生器30用作马达的功率由用作发生器的第一马达/发生器28来提供。具体地说，第一马达/发生器28在发生器模式下用于吸收输入轴42处的来自原动机22的功率，同时第一马达/发生器28所接收的功率分路至第二马达/发生器30上，以便将扭矩施加在输出轴44上。在这种方式下，通过操作第一和第二马达/发生器28，30，就可完成调高速挡的齿轮变速，从而将输入轴42和输出轴44的速度调整到合适的新传动比值，同时继续吸收来自原动机22的功率，并将功率施加在输出轴44上。更具体地说，可调整输入轴42和/或输出轴44的速度，以修正输出齿轮66-74和/或离合器82，84，86和88的速度，使得变速齿轮的转速在传动比变化期间大致类似于接合离合器的转速。 
作为备选，在反向的传动系扭矩周期期间，使第一马达/发生器28用作马达的功率由用作发生器的第二马达/发生器30来提供。具体地说，第二马达/发生器30在发生器模式下用于吸收输出轴44处的功率，并将该功率传递至第一马达/发生器28上，以便施加在输入轴42上。通过在变速器24的输入和输出之间分流功率，并在换挡期间适当地控制扭矩和速度，就可显著地提高调至高速挡或低速挡的速度，并且可在无需中断输入轴42和输出轴44之间的功率的条件下，使变速器24进行“机械调挡”。 
参看图1，4和图5，在换挡期间，在第一及第二马达/发生器28，30之间的功率流可以是直接的，如图1中所示，或者是间接的，如图1，4和5中所示。如图4中所示，当第一和第二马达/发生器用作电动机/发电机时，第一和第二马达/发生器28，30所产生的电功率可通过驱动逆变器40来进行分流，并在分给需要功率的马达/发生器之前储存在能量存储装置38中。如图5中所示，当第一和第二马达/发生器用作液压马达/液压泵时，第一和第二马达/发生器28，30所产生的液压功率可通过液压控制器39来进行分流，并在分给需要功率的马达/发生器之前储存在能量存储装置38中。各马达/发生器28，30作为发生器的操作可出现在换挡期间，或者出现在动力系统20操作期间的任何时间，在这种情况下，马达/发生器28，30作为发生器的操作不会对动力系统20的操作造成负面影响。 
在本发明的一个实施例中，在第一和第二马达/发生器28，30之间分流的功率可通过将部分分流功率储存在能量存储装置38中而减少，或者通过将储存的能量应用于第一和第二马达/发生器28，30之间的功率流中而增大。在另一实施例中，动力系统20可包括连接在输出轴44上的单独的马达/发生器30。在这个实施例中，马达/发生器30可用作发生器，以便在方便的时候，例如在换挡之间以及在车辆巡航期间，使能量存储装置38充电。在正向的传动系扭矩周期期间，马达/发生器30使用储蓄能量而作为马达进行操作，以便在换挡期间保持 输出轴44上的功率。作为备选，在反向的传动系扭矩周期期间，马达/发生器30用作发生器，使能量存储装置38充能量。当没有采用输入轴马达/发生器时，变速器输入轴42上的扭矩和速度由某些其它方法来进行控制，例如由在离合器26接合情形下的原动机22的操作来控制。 
在正向的传动系扭矩周期期间，在第一和第二马达/发生器28，30之间分流的功率是原动机22产生的功率。当功率从第一马达/发生器28传递至第二马达/发生器30上时，通过限制原动机22在正向传动系扭矩的周期期间所产生的功率量，就可减少第一和第二马达/发生器28，30的容量。例如，当功率从第一马达/发生器28传递至第二马达/发生器30上时，ECU32可减少用作发动机的原动机22的燃料。 
在使主离合器于换挡期间分离的传动系统中，施加在变速器的输出轴上的扭矩在传动比变化期间显著地减小或下降到零。在机动车中，车辆乘客可察觉到扭矩的这种中断。然而，当在机动车中采用动力系统20时，第二马达/发生器30可操作，以便当请求改变传动比时，保持输出轴44上的扭矩至采用了动力系统20的车辆的主动轮。这种特征除了实现变速器24的自动″机械换挡″之外，还提高了动力系统20的换挡平滑度和换挡质量。 
上面已经参照前面的实施例特别显示并描述了本发明，这些实施例仅仅显示了用于执行本发明的最好模式。本领域中的技术人员应该懂得，在没有脱离所附权利要求所限定的本发明的精神和范围内，可采用本文所描述的本发明实施例的各种备选方案来实施本发明。所附权利要求旨在限定本发明的范围，并因此覆盖这些权利要求和其等效范围内的方法和装置。本发明的描述应该理解为还包括本文所述元件的所有新颖和不明显的组合，并且权利要求在本申请或后续申请中包括这些元件的任何新颖的和非显而易见的组合。此外，前面的实施例是说明性的，对于在本申请或后续申请中提出权利要求的所有可能组合而言，并没有单个特征或元件是必需的。 

Claims (26)

1.一种动力系统(20)，包括：
原动机(22)；
变速齿轮变速器(24)，其包括输入(42)、至少两种传动比以及输出(44)；其中至少原动机(22)施加功率到变速器(24)上；和
功率分路器(27)，包括第一马达/发生器和第二马达/发生器，将所述输入和输出之一施加在所述变速器(24)上的功率至少部分传递至所述输入和输出中的另一个上，其中，所述第一马达/发生器从旋转输入产生功率输出，所述第二马达/发生器从功率输入产生旋转输出；所述变速齿轮通过离合器(82，84，86，88)而接合，并且所述功率分路器(27)配置成可将所述输入(42)和所述输出(44)之一施加在变速器(24)上的功率传输至所述输入(42)和所述输出(44)的另一个上，使得变速齿轮的转速在传动比变化期间与接合离合器的转速基本相似；当传动系扭矩是正向时，所述第一马达/发生器(28)是发生器，所述第二马达/发生器(30)是马达；其中，当传动系扭矩是反向时，所述第一马达/发生器(28)是马达，所述第二马达/发生器(30)是发生器；其中，所述第一马达/发生器(28)连接在所述输入(42)上，所述第二马达/发生器(30)连接在所述输出(44)上。
2.根据权利要求1所述的动力系统，其特征在于，所述第一马达/发生器(28)由所述原动机(22)来驱动。
3.根据权利要求1所述的动力系统，其特征在于，所述第一和第二马达/发生器(28，30)是电动机/发电机。
4.根据权利要求1所述的动力系统，其特征在于，所述功率分路器(27)传递由所述第一和第二马达/发生器(28，30)之一所产生的电功率。
5.根据权利要求1所述的动力系统，其特征在于，所述输入(42)是输入轴，所述输出(44)是输出轴。
6.根据权利要求1所述的动力系统，其特征在于，所述功率分路器(27)包括能量存储装置(38)。
7.根据权利要求6所述的动力系统，其特征在于，所述能量存储装置(38)储存电功率或液压功率。
8.根据权利要求1所述的动力系统，其特征在于，所述变速齿轮通过离合器(82，84，86，88)而接合，并且所述功率分路器(27)配置成可将所述输入(42)和所述输出(44)之一施加在变速器(24)上的功率传递至所述输入(42)和所述输出(44)中的另一个上，使得在所选变速齿轮和接合离合器之间传递的功率显著地减小或下降至零。
9.一种动力系统，包括：
原动机(22)；
变速齿轮变速器(24)，其包括输入(42)、至少两种传动比以及输出(44)；
连接在所述输入(42)上的第一马达/发生器(28)和连接在所述输出(44)上的第二马达/发生器(30)，
在所述变速器(24)的输入(42)与输出(44)之间的第一功率路径，所述第一功率路径由所述变速器(24)的传动比来限定；和
在所述变速器(24)的输入(42)与输出(44)之间的第二功率路径包括在所述第一马达/发生器(28)和所述第二马达/发生器(30)之一中的从旋转输入到非旋转功率传递媒介的功率传递，和在所述第一马达/发生器(28)和所述第二马达/发生器(30)另一个中的从非旋转功率传递媒介到旋转输出的功率传递，其中，当传动系扭矩是反向时，所述第一马达/发生器(28)是马达，所述第二马达/发生器(30)是发生器；其中，所述第一和第二马达/发生器(28，30)配置成可通过所述第二功率路径来传递功率，使得施加在所述输入(42)上的功率在齿轮变速期间与施加在所述输出(44)上的功率基本相似。
10.根据权利要求9所述的动力系统，其特征在于，当传动系扭矩是正向时，所述第一马达/发生器(28)是发生器，而所述第二马达/发生器(30)是马达。
11.根据权利要求9所述的动力系统，其特征在于，所述第二功率路径包括由所述第一和第二马达/发生器(28，30)之一所产生的电功率。
12.根据权利要求9所述的动力系统，其特征在于，所述第一和第二马达/发生器(28，30)是马达或发生器。
13.根据权利要求9所述的动力系统，其特征在于，所述输入(42)是输入轴，所述输出(44)是输出轴。
14.根据权利要求9所述的动力系统，其特征在于，所述第二功率路径包括能量存储装置(38)。
15.根据权利要求14所述的动力系统，其特征在于，所述能量存储装置(38)储存电功率或液压功率。
16.根据权利要求9所述的动力系统，其特征在于，所述变速齿轮通过离合器(82，84，86，88)而接合，并且所述功率分路器配置成可将所述输入(42)和所述输出(44)之一施加在变速器(24)上的功率传递至所述输入(42)和所述输出(44)中的另一个上，使得在所选变速齿轮与接合离合器之间传递的功率显著地减小或下降至零。
17.根据权利要求9所述的动力系统，其特征在于，所述变速齿轮通过离合器(82，84，86，88)而接合，并且所述功率分路器配置成可通过所述第二功率路径来传递功率，使得变速齿轮的转速在传动比变化期间与接合离合器的转速基本相似。
18.一种传动系统，包括：
变速齿轮变速器(24)，其包括输入(42)、至少两种传动比以及输出(44)；和
功率分路器(27)，包括第一马达/发生器和第二马达/发生器，将所述输入(42)和输出(44)之一施加在所述变速器(24)上的功率至少部分传递至所述输入(42)和输出(44)中的另一个上，其中，所述第一马达/发生器从旋转输入产生功率输出，所述第二马达/发生器从功率输入产生旋转输出；所述变速齿轮通过离合器(82，84，86，88)而接合，并且所述功率分路器(27)配置成可将所述输入(42)和所述输出(44)之一施加在变速器(24)上的功率传递至所述输入(42)和所述输出(44)的另一个，使得在所选变速齿轮与接合离合器之间传递的功率显著地减小或下降至零；其中，当传动系扭矩是反向时，所述第一马达/发生器(28)是马达，而所述第二马达/发生器(30)是发生器。
19.根据权利要求18所述的传动系统，其特征在于，所述第一马达/发生器(28)连接在所述输入(42)上，所述第二马达/发生器(30)连接在所述输出(44)上。
20.根据权利要求18所述的传动系统，其特征在于，所述第一和第二马达/发生器(28，30)是电动机/发电机。
21.根据权利要求18所述的传动系统，其特征在于，当传动系扭矩是正向时，所述第一马达/发生器(28)是发生器，而所述第二马达/发生器(30)是马达。
22.根据权利要求18所述的传动系统，其特征在于，所述功率分路器(27)传递由所述第一和第二马达/发生器(28，30)之一所产生的电功率。
23.根据权利要求18所述的传动系统，其特征在于，所述输入(42)是输入轴，所述输出(44)是输出轴。
24.根据权利要求18所述的传动系统，其特征在于，所述功率分路器(27)包括能量存储装置(38)。
25.根据权利要求24所述的传动系统，其特征在于，所述能量存储装置(38)储存电功率或液压功率。
26.一种动力系统(20)，包括：
原动机(22)；
变速齿轮变速器(24)，包括输入(42)、至少两种传动比以及输出(44)，其中至少原动机(22)施加功率到变速器(24)上；和
功率分路器(27)，包括第一马达/发生器和第二马达/发生器，将所述输入和输出之一施加在所述变速器(24)上的功率至少部分传递至所述输入和输出中的另一个上；其中，所述第一马达/发生器从旋转输入产生功率输出，所述第二马达/发生器从功率输入产生旋转输出；所述变速齿轮通过离合器(82，84，86，88)而接合，并且所述功率分路器(27)配置成可将所述输入(42)和所述输出(44)之一施加在变速器(24)上的功率传递至所述输入(42)和所述输出(44)的另一个，使得变速齿轮的转速在传动比变化期间与接合离合器的转速基本相似；其中，当传动系扭矩是反向时，所述第一马达/发生器(28)是马达，而所述第二马达/发生器(30)是发生器。
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ATE486231T1 (de) 2010-11-15
PL1706286T3 (pl) 2011-05-31
BRPI0506527A (pt) 2007-02-27
DE602005024359D1 (de) 2010-12-09
CN1910065A (zh) 2007-02-07
US7125362B2 (en) 2006-10-24
US20050164827A1 (en) 2005-07-28
CA2552900A1 (en) 2005-09-01
CA2552900C (en) 2011-06-07

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