CN106891713A - 一种混合动力汽车驱动系统 - Google Patents

一种混合动力汽车驱动系统 Download PDF

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CN106891713A
CN106891713A CN201710244748.XA CN201710244748A CN106891713A CN 106891713 A CN106891713 A CN 106891713A CN 201710244748 A CN201710244748 A CN 201710244748A CN 106891713 A CN106891713 A CN 106891713A
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gear
clutch
coupled
driving gear
driving
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毛江
陈国利
刘巍
严博
黄兴
刘增玥
陈忞
谢攀
李洪
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Chongqing Qingshan Industry Co Ltd
Chongqing Tsingshan Industrial Co Ltd
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Chongqing Qingshan Industry Co Ltd
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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
    • B60K6/36—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
    • B60K6/38—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
    • 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
    • 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
    • B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
    • 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)
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  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

本发明公开一种动力匹配性、换挡平顺性较好的混合动力汽车驱动系统，发动机的曲轴与耦合离合器、连接轴、行星排的行星架从右至左依次连接，驱动电机的电机轴的右端与太阳轮固联，第二主动齿轮、第二离合器、第一离合器、第一主动齿轮位于行星排的行星架和耦合离合器之间、从左至右依次设置且第二和第一主动齿轮均空套在连接轴上、分别与第二和第一被动齿轮啮合，第二和第一离合器的外鼓与连接轴联结、内鼓分别第二、第一主动齿轮联结或者第二和第一离合器的内鼓与连接轴联结、外鼓分别与第二、第一主动齿轮联结，常啮合齿轮、第二、第一被动齿轮从左至右依次设置在输出轴上且均与输出轴固联，外齿圈与行星排的齿圈固联且与常啮合齿轮啮合。

Description

一种混合动力汽车驱动系统
技术领域
本发明涉及混合动力汽车，特别是涉及一种混合动力汽车驱动系统。
背景技术
混合动力汽车驱动系统通常具有动力模式切换、发动机与驱动电机相匹配等功能。为此，市场上常见的混合动力汽车驱动系统，其发动机和驱动电机直接相联，混动模式下，需同时保证发动机和驱动电机的转速一致才能实现动力较好地输出。然而，发动机和驱动电机的转速很难一致，因而匹配性较差，不能充分发挥驱动电机具有扭矩大和连续调速的作用；混动模式下，其发动机的转速变化不连续，使得整个驱动系统的传动比变化不连续，存在换挡冲击，也难以使发动机处在高效率区工作，因而换挡平顺性差且工作效率不高；同时，发动机和驱动电机直接相联，单发动机、纯电动和混合动力三种动力模式间切换时对驱动系统冲击很大，常常很难进行平顺切换。
发明内容
本发明要解决的技术问题是提供一种动力匹配性、换挡平顺性较好，工作效率较高和切换比较平顺的混合动力汽车驱动系统。
为解决上述技术问题，本发明的混合动力汽车驱动系统，包括；包含曲轴的发动机、耦合离合器，包含电机轴的驱动电机，以及输出轴，其特征在于：还包括第一主动齿轮、第一被动齿轮、第二主动齿轮、第二被动齿轮、第一离合器、第二离合器、连接轴、常啮合齿轮、外齿圈，以及包含太阳轮、行星轮、行星架和齿圈的行星排，所述发动机的曲轴与耦合离合器、连接轴、行星排的行星架从右至左依次连接，所述驱动电机的电机轴的右端与太阳轮固联，所述第二主动齿轮、第二离合器、第一离合器、第一主动齿轮位于行星排的行星架和耦合离合器之间、从左至右依次设置且第二主动齿轮和第一主动齿轮均空套在连接轴上、分别与第二被动齿轮和第一被动齿轮啮合，第二离合器和第一离合器的外鼓与连接轴联结、内鼓分别与第二主动齿轮、第一主动齿轮联结或者第二离合器和第一离合器的内鼓与连接轴联结、外鼓分别与第二主动齿轮、第一主动齿轮联结，所述常啮合齿轮、第二被动齿轮、第一被动齿轮从左至右依次设置在输出轴上且均与输出轴固联，所述外齿圈与行星排的齿圈固联且与常啮合齿轮啮合，所述行星排的太阳轮位于行星架之内、行星轮可转动地安装于行星架上、齿圈安装于行星架之外。采用上述结构后，本发明能够分别通过发动机和驱动电机驱动行星排的行星架和太阳轮,即发动机和驱动电机的动力能够通过行星排实现动力耦合、较好地匹配驱动电机的大扭矩和连续变速的动力特性，因而匹配性较好；发动机和驱动电机通过行星排连接动力，能够在纯电动和混合动力模式下，通过驱动电机调速实现无级变速；因而，换挡平顺性较好，工作效率较高且动力模式的切换比较平顺；另外，本发明在纯电动和单发动机模式下均能实现两个挡位切换，使得整车具有更大的转速变化范围，因而工作效率较高。
优选地，所述第一离合器和第二离合器均为多摩擦片式离合器。这使得本发明够更好地缓冲整车的冲击、换挡比较平顺。
优选地，所述耦合离合器为干式离合器。这使得的耦合离合器结构比较简单、控制难度和成本较低。从而，使得本发明整体结构也比较简单、控制难度和成本也较低。
附图说明
图1是本发明的结构示意图。
具体实施方式
下面结合附图对本发明的优选实施方式做详细说明。
参见图1，本发明的混合动力汽车驱动系统，包括；包含曲轴2的发动机1、耦合离合器3，包含电机轴5的驱动电机4，以及输出轴10。由图1可见，本发明还包括第一主动齿轮6、第一被动齿轮7、第二主动齿轮8、第二被动齿轮9、第一离合器12、第二离合器11、连接轴15、常啮合齿轮13、外齿圈14，以及包含太阳轮16、行星轮17、行星架18和齿圈19的行星排，所述发动机1的曲轴2与耦合离合器3、连接轴15、行星排的行星架18从右至左依次连接，所述驱动电机4的电机轴5的右端与太阳轮16固联，所述第二主动齿轮8、第二离合器11、第一离合器12、第一主动齿轮6位于行星排的行星架18和耦合离合器3之间、从左至右依次设置且第二主动齿轮8和第一主动齿轮6均空套在连接轴15上、分别与第二被动齿轮9和第一被动齿轮7啮合，第二离合器11和第一离合器12的外鼓与连接轴15联结、内鼓分别与第二主动齿轮8、第一主动齿轮6联结或者第二离合器11和第一离合器12的内鼓与连接轴15联结、外鼓分别与第二主动齿轮8、第一主动齿轮6联结，所述常啮合齿轮13、第二被动齿轮9、第一被动齿轮7从左至右依次设置在输出轴10上且均与输出轴10固联，所述外齿圈14与行星排的齿圈19固联且与常啮合齿轮13啮合，所述行星排的太阳轮16位于行星架18之内、行星轮17可转动地安装于行星架18上、齿圈19安装于行星架18之外。
所述第一离合器12和第二离合器11均为多摩擦片式离合器。
所述耦合离合器3为干式离合器。
本发明的工作原理如下：
单发动机模式；发动机1工作，耦合离合器3结合，驱动电机4不工作，第一离合器12结合，第二离合器11断开，本发明处于一挡状态，发动机1通过其曲轴2、耦合离合器3将动力依次传递给连接轴15、第一离合器12、第一主动齿轮6、第一被动齿轮7、输出轴10，实现一挡动力传递。发动机1工作，耦合离合器3结合，驱动电机4不工作，第一离合器12断开，第二离合器11结合，本发明处于二挡状态，发动机1通过其曲轴2、耦合离合器3将动力依次传递给连接轴15、第二离合器11、第二主动齿轮8、第二被动齿轮9、输出轴10，实现二挡动力传递。
纯电模式：发动机1不工作，耦合离合器3断开，驱动电机4工作，第一离合器12结合，第二离合器11断开，本发明处于一挡状态，驱动电机4通过电机轴5将动力传递给行星排的太阳轮16，行星排将动力分成两条路径传递，第一条由行星排的齿圈19将动力依次传递给外齿圈14、常啮合齿轮13，第二条由行星排的行星架18将动力依次传递给连接轴15、第一离合器12、第一主动齿轮6、第一被动齿轮7，两条路径的动力由常啮合齿轮13和第一被动齿轮7在输出轴10上进行耦合，再由输出轴10传递出去，实现一挡动力传递。发动机1不工作，耦合离合器3断开，驱动电机4工作，第一离合器12断开，第二离合器11结合，本发明处于二挡状态，驱动电机4通过电机轴5将动力传递给行星排的太阳轮16，行星排将动力分成两条路径传递，第一条由行星排的齿圈19将动力依次传递给外齿圈14、常啮合齿轮13，第二条由行星排的行星架18将动力依次传递给连接轴15、第二离合器11、第二主动齿轮8、第二被动齿轮9，两条动力流由常啮合齿轮13和第二被动齿轮9在输出轴10上进行耦合，由输出轴10将动力传递出去，实现二挡动力传递。
混动模式：发动机1工作，耦合离合器3结合，驱动电机4工作，第一离合器12断开，第二离合器11断开。驱动电机4通过电机轴5将动力传递给行星排的太阳轮16，发动机1通过其曲轴2、耦合离合器3将动力依次传递给连接轴15、行星排的行星架18，驱动电机4和发动机1的动力通过行星排进行耦合，最后通过行星排的齿圈19将动力依次传递给外齿圈14、常啮合齿轮13和输出轴10。
上面结合附图对本发明的优选实施方式做了详细说明，但是本发明并不限于上述实施方式，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (3)

1.一种混合动力汽车驱动系统，包括；包含曲轴（2）的发动机（1）、耦合离合器（3），包含电机轴（5）的驱动电机（4），以及输出轴（10），其特征在于：还包括第一主动齿轮（6）、第一被动齿轮（7）、第二主动齿轮（8）、第二被动齿轮（9）、第一离合器（12）、第二离合器（11）、连接轴（15）、常啮合齿轮（13）、外齿圈（14），以及包含太阳轮（16）、行星轮（17）、行星架（18）和齿圈（19）的行星排，
所述发动机（1）的曲轴（2）与耦合离合器（3）、连接轴（15）、行星排的行星架（18）从右至左依次连接，
所述驱动电机（4）的电机轴（5）的右端与太阳轮（16）固联，
所述第二主动齿轮（8）、第二离合器（11）、第一离合器（12）、第一主动齿轮（6）位于行星排的行星架（18）和耦合离合器（3）之间、从左至右依次设置且第二主动齿轮（8）和第一主动齿轮（6）均空套在连接轴（15）上、分别与第二被动齿轮（9）和第一被动齿轮（7）啮合，第二离合器（11）和第一离合器（12）的外鼓与连接轴（15）联结、内鼓分别与第二主动齿轮（8）、第一主动齿轮（6）联结或者第二离合器（11）和第一离合器（12）的内鼓与连接轴（15）联结、外鼓分别与第二主动齿轮（8）、第一主动齿轮（6）联结，
所述常啮合齿轮（13）、第二被动齿轮（9）、第一被动齿轮（7）从左至右依次设置在输出轴（10）上且均与输出轴（10）固联，
所述外齿圈（14）与行星排的齿圈（19）固联且与常啮合齿轮（13）啮合，
所述行星排的太阳轮（16）位于行星架（18）之内、行星轮（17）可转动地安装于行星架（18）上、齿圈（19）安装于行星架（18）之外。
2.根据权利要求1所述的混合动力汽车驱动系统，其特征在于：所述第一离合器（12）和第二离合器（11）均为多摩擦片式离合器。
3.根据权利要求1或2所述的混合动力汽车驱动系统，其特征在于：所述耦合离合器（3）为干式离合器。
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