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CN107187309A - 商用车双模式混合动力传动装置 - Google Patents

商用车双模式混合动力传动装置 Download PDF

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CN107187309A
CN107187309A CN201710299595.9A CN201710299595A CN107187309A CN 107187309 A CN107187309 A CN 107187309A CN 201710299595 A CN201710299595 A CN 201710299595A CN 107187309 A CN107187309 A CN 107187309A
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power
planetary
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彭增雄
胡纪滨
魏超
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Beijing Institute of Technology BIT
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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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—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 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 combustion engines
    • 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 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 motors or the generators
    • 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
    • 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 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 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 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 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
    • 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 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 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 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
    • 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 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 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 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
    • 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 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

本发明属于混合动力汽车技术领域，特别涉及混合动力传动装置。商用车双模式混合动力传动装置，它包括：电机控制器、以及同轴布置的三个行星排、两台电机、第一离合器、第一制动器；所述三个行星排分别为：内外啮合双星排、普通行星排、减速行星排；由内外啮合双星排和普通行星排组成功率分流机构可实现双模式的功率分流。双模式为分速汇矩功率分流模式、分速汇速功率分流模式。两模式之间切换时离合器不存在速差，可简化模式切换控制系统。较单模式功率分流，一方面可扩大变传动装置的速比范围，另一方面可减小电机的转矩和功率，提高传动装置的功率密度。

Description

商用车双模式混合动力传动装置
技术领域
本发明属于混合动力汽车技术领域，特别涉及混合动力传动装置。
背景技术
混合动力传动技术为节能减排的重要手段，各大汽车厂家积极发展。丰田公司混联形式的THS混合动力系统具备良好的节油效果，利用行星机构进行功率分流，保证发动机常工作在经济区间，但该系统只是单模式的功率分流，传动比范围较小，难适合于商用车的工况要求。
双模式功率分流混合动力传动系统，可有效利用低速和高速两个功率分流模式，全程效率高，所需电机转矩及功率较小，具有更大的传动比范围，更适合商用车的工况需求。US2005/0137042A1公布了一种商用车用双模式混合动力传动装置，采用三个行星排，可实现两个功率分流模式和4个机械挡位。US6527658B2公布了一种双模式混合动力传功装置，采用两个行星排进行功率分流，可获得较宽的传动比范围。US5931757也公布了两种双模式混合动力传动装置，可适合于商用车使用工况。
发明内容
本发明的目的是：提供一种有利于商用车的动力传动系统布局、可保证较高的传动效率的商用车双模式混合动力传动装置。
本发明的技术方案是：商用车双模式混合动力传动装置，它包括：电机控制器、以及同轴布置的三个行星排、两台电机、第一离合器、第一制动器；
三个行星排分别为：内外啮合双星排、普通行星排、减速行星排；其中，内外啮合双星排由安装在第一行星架上的第一太阳轮、第一齿圈、第一行星轮、第二行星轮组成；普通行星排由安装在第二行星架上的第二齿圈、第二太阳轮以及第三行星轮组成；减速行星排由安装在第三行星架上的第三齿圈以及第三太阳轮组成；
两台电机为：第一电机、第二电机；第一电机、第二电机的定子与壳体相连并且分别通过线缆与电机驱动器相连；
整体连接关系为：发动机输入轴与第一齿圈相连，将发动机的机械功率输入；第一行星架一方面第二行星架连接，另一方面与第一离合器的主动端连接；第一太阳轮通过轴与第二太阳轮、第三太阳轮、第二电机的转子连接，可与第二电机交换能量；第二齿圈与第一电机的转子连接，可与第一电机交换能量；第三行星架同时与第一离合器的被动端、输出轴连接；第三齿圈与第一制动器的主动端连接，第一制动器的被动端与壳体相连。
有益效果：本发明中两台电机、离合器、制动器、三个行星排均同轴布置，工艺简单。由内外啮合双星排和普通行星排组成功率分流机构可实现双模式的功率分流。较单模式功率分流，一方面可扩大变传动装置的速比范围，另一方面可减小电机的转矩和功率，提高传动装置的功率密度。
附图说明
图1为本发明实施例1的结构简图；
图2为本发明实施例2的结构简图；
图3为本发明的转速图。
具体实施方式
下面结合附图并举实施例，对本发明进行详细描述。
实施例1，参见附图1，商用车双模式混合动力传动装置，它包括：电机控制器24、以及同轴布置的三个行星排、两台电机、第一离合器20、第一制动器13；
三个行星排分别为：内外啮合双星排P1、普通行星排P2、减速行星排P3；其中，内外啮合双星排P1由安装在第一行星架3上的第一太阳轮2、第一齿圈4、第一行星轮16、第二行星轮17组成；普通行星排P2由安装在第二行星架5上的第二齿圈6、第二太阳轮7以及第三行星轮18组成；减速行星排P3由安装在第三行星架14上的第三齿圈12以及第三太阳轮19组成；内外啮合双星排P1与普通行星排P2组成功率分流机构，该分流机构负责两个功率分流模式的功率分流以及汇流。
两台电机为：第一电机、第二电机；第一电机、第二电机的定子9、11与壳体相连并且分别通过线缆22、23与电机驱动器24相连；
将第一电机、第二电机布置在普通行星排P2与减速行星排P3之间，有利于润滑系统设计以及电机转子的支撑；第一离合器20、第一制动器13布置在减速行星排P3后侧。功率分流机构布置在前面，方便与发动机相连；减速行星排P3以及第一离合器20、第一制动器13集中布置在传动装置后部，方便离合器、制动器的进油口设计。整体连接关系为：发动机输入轴1与第一齿圈4相连，将发动机的机械功率输入；第一行星架3一方面第二行星架5连接，另一方面与第一离合器20的主动端连接；第一太阳轮2通过轴21与第二太阳轮7、第三太阳轮19、第二电机的转子10连接，可与第二电机交换能量；第二齿圈6与第一电机的转子8连接，可与第一电机交换能量；第三行星架14同时与第一离合器20的被动端、输出轴15连接；第三齿圈12与第一制动器13的主动端连接，第一制动器13的被动端与壳体相连。
减速行星排P3与第一制动器13、第一离合器20相配合，可实现两个传动比的输出，分别为减速挡和直接挡。当与第一制动器13接合，第一离合器20松开时，传动装置处于分速汇矩功率分流模式或者纯电驱动工况或者电机反拖倒档工况；当第一制动器13松开，第一离合器20接合时，传动装置处于分速汇速功率分流模式；当第一制动器13、第一离合器20同时接合时，传动装置处于固定档位。
模式切换逻辑如下表所示：
用于车辆起步和低速行车时，传动装置采用分速汇矩功率分流模式，即第一电机为发电工况，第二电机为电动工况；发动机输入轴1通过第一齿圈4输入机械功率，经过内外啮合双星排P1和普通行星排P2，机械功率从轴21输出；第一电机的发电功率存储在动力电池组内部或者传输给第二电机，第二电机的功率和轴21的机械功率汇合后输入到第三太阳轮19；第一制动器13接合，第一离合器20分离，动力从第三行星架14输出到输出轴15。
用于车辆中、高速行车时，传动装置采用分速汇速功率分流模式，即第一电机为电动工况，第二电机为发电工况；发动机输入轴1通过第一齿圈4输入机械功率，经过内外啮合双星排P1和普通行星排P2，机械功率从在第一行星架3输出；第二电机的发电功率存储在动力电池组内部或者传输给第一电机；第一制动器13分离，第一离合器20接合，动力从第一行星架3，通过第一离合器20，输出到输出轴15。
倒车工况时，第二电机工作在电动工况，反向旋转，第一制动器13接合，第一离合器20分离，第二电机功率从第三太阳轮19输入，经过减速行星排P3后，从第三行星架14输出到输出轴15，驱动车辆倒车。
纯电动形式时，发动机停止，第二电机工作在电动工况，第一制动器13接合，第一离合器20分离，第二电机功率从第三太阳轮19输入，经过减速行星排P3后，从第三行星架14输出到输出轴15，驱动车辆低速行驶。
制动能量回工况，工作在分速汇矩功率分流模式时，可利用第二电机的反向转矩控制，实现制动能量的回收。当工作在分速汇速功率分流模式时，可利用第一电机和第二电机的转矩差进行协调控制，实现制动能量的回收。
实施例2，参见附图2，在实施例1的基础上，增加第二离合器25和第二制动器26；第二离合器25的主动端分别与第二齿圈6、第一电机的转子8连接，被动端与第三太阳轮19、第二电机的转子10相连；第二制动器26的被动端与壳体相连，主动端连接第二离合器25的被动端以及轴21。由此，可以多获得4个机械档位。
其模式切换逻辑如下表所示：
综上，以上仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

1.商用车双模式混合动力传动装置，其特征在于：它包括：电机控制器(24)、以及同轴布置的三个行星排、两台电机、第一离合器(20)、第一制动器(13)；
所述三个行星排分别为：内外啮合双星排(P1)、普通行星排(P2)、减速行星排(P3)；其中，所述内外啮合双星排(P1)由安装在第一行星架(3)上的第一太阳轮(2)、第一齿圈(4)、第一行星轮(16)、第二行星轮(17)组成；所述普通行星排(P2)由安装在第二行星架(5)上的第二齿圈(6)、第二太阳轮(7)以及第三行星轮(18)组成；所述减速行星排(P3)由安装在第三行星架(14)上的第三齿圈(12)以及第三太阳轮(19)组成；
所述两台电机为：第一电机、第二电机；所述第一电机、所述第二电机的定子(9、11)与壳体相连并且分别通过线缆(22、23)与所述电机驱动器(24)相连；
整体连接关系为：发动机输入轴(1)与所述第一齿圈(4)相连；所述第一行星架(3)一方面所述第二行星架(5)连接，另一方面与所述第一离合器(20)的主动端连接；所述第一太阳轮(2)通过轴(21)与所述第二太阳轮(7)、所述第三太阳轮(19)、所述第二电机的转子(10)连接；所述第二齿圈(6)与所述第一电机的转子(8)连接；所述第三行星架(14)同时与所述第一离合器(20)的被动端、输出轴(15)连接；所述第三齿圈(12)与所述第一制动器(13)的主动端连接，所述第一制动器(13)的被动端与所述壳体相连。
2.如权利要求1所述的商用车双模式混合动力传动装置，其特征在于：它还包括：第二离合器(25)和第二制动器(26)；
所述第二离合器(25)的主动端分别与所述第二齿圈(6)、所述第一电机的转子(8)连接，被动端与所述第三太阳轮(19)、所述第二电机的转子(10)相连；所述第二制动器(26)的被动端与所述壳体相连，主动端连接所述第二离合器(25)的被动端以及所述轴(21)。
3.如权利要求1或2所述的商用车双模式混合动力传动装置，其特征在于：所述第一电机、所述第二电机布置在所述普通行星排(P2)与所述减速行星排(P3)之间；所述第一离合器(20)、所述第一制动器(13)布置在所述减速行星排(P3)后侧。
4.如权利要求1所述的商用车双模式混合动力传动装置，其特征在于：用于车辆起步和低速行车时，其采用分速汇矩功率分流模式，即所述第一电机为发电工况，第二电机为电动工况；所述发动机输入轴(1)通过所述第一齿圈(4)输入机械功率，经过所述内外啮合双星排(P1)和所述普通行星排(P2)，所述机械功率从所述轴(21)输出；所述第一电机的发电功率存储在动力电池组内部或者传输给所述第二电机，所述第二电机的功率和所述轴(21)的机械功率汇合后输入到所述第三太阳轮(19)；所述第一制动器(13)接合，所述第一离合器(20)分离，动力从所述第三行星架(14)输出到所述输出轴(15)。
5.如权利要求1所述的商用车双模式混合动力传动装置，其特征在于：用于车辆中、高速行车时，其采用分速汇速功率分流模式，即所述第一电机为电动工况，所述第二电机为发电工况；所述发动机输入轴(1)通过所述第一齿圈(4)输入机械功率，经过所述内外啮合双星排(P1)和所述普通行星排(P2)，所述机械功率从在所述第一行星架(3)输出；所述第二电机的发电功率存储在动力电池组内部或者传输给所述第一电机；所述第一制动器(13)分离，所述第一离合器(20)接合，动力从所述第一行星架(3)，通过所述第一离合器(20)，输出到所述输出轴(15)。
6.如权利要求1所述的商用车双模式混合动力传动装置，其特征在于：倒车工况时，所述第二电机工作在电动工况，反向旋转，所述第一制动器(13)接合，所述第一离合器(20)分离，所述第二电机功率从所述第三太阳轮(19)输入，经过所述减速行星排(P3)后，从所述第三行星架(14)输出到所述输出轴(15)，驱动车辆倒车。
7.如权利要求1所述的商用车双模式混合动力传动装置，其特征在于：纯电动形式时，发动机停止，所述第二电机工作在电动工况，所述第一制动器(13)接合，所述第一离合器(20)分离，所述第二电机功率从所述第三太阳轮(19)输入，经过所述减速行星排(P3)后，从所述第三行星架(14)输出到所述输出轴(15)，驱动车辆低速行驶。
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