CN102815195A - 混合电动车的动力变速系统 - Google Patents

混合电动车的动力变速系统 Download PDF

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Publication number
CN102815195A
CN102815195A CN201110401626XA CN201110401626A CN102815195A CN 102815195 A CN102815195 A CN 102815195A CN 201110401626X A CN201110401626X A CN 201110401626XA CN 201110401626 A CN201110401626 A CN 201110401626A CN 102815195 A CN102815195 A CN 102815195A
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planet gear
compound planet
rotating element
clutch
drg
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CN102815195B (zh
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金伯猷
李将美
裴城翌
金连镐
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Hyundai Motor Co
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Hyundai Motor Co
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • 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
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    • 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
    • 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
    • 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
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    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
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    • F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
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    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
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    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
    • 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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    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Abstract

本发明公开了一种混合电动车的动力变速系统，其包括：输入轴；第一行星齿轮组，其具有第一、第二和第三旋转元件，其中第一旋转元件连接到第一电动机/发电机，并且第三旋转元件连接到输入轴；第二行星齿轮组，其具有第四、第五和第六旋转元件，其中第四旋转元件连接到第二旋转元件和第二电动机/发电机，并且第五旋转元件能够与第一旋转元件接合；输出齿轮，其连接到第六旋转元件；第一离合器，其选择性地连接第一旋转元件和第五旋转元件；第二离合器，其选择性地连接第一行星齿轮组的多个旋转元件之中的两个旋转元件；第一制动器，其插置在第五旋转元件和变速器壳体之间；以及第二制动器，其插置在第四旋转元件和变速器壳体之间。

Description

混合电动车的动力变速系统
相关申请的交叉引用
本申请要求2011年6月9日向韩国知识产权局提交的韩国专利申请第10-2011-0055689号的优先权，该申请的全部内容结合于此用于通过该引用的所有目的。
技术领域
本发明涉及一种混合电动车辆的动力变速系统。更特别地，本发明涉及这样一种混合电动车辆的动力变速系统，其实现了至少两种扭矩分配模式(torque split mode)以及至少四种固定换档速度模式。
背景技术
通常而言，混合电动车辆是由至少两种不同类型的动力源驱动的车辆。
这样的混合电动车辆典型地包括发动机和电动机/发电机。混合电动车辆使用具有相对更好的低速扭矩特征的电动机/发电机作为低速时候的主动力源，并且使用具有相对更好的高速扭矩特征的发动机作为高速时候的主动力源。
由于混合电动车辆停止利用化石燃料的发动机的操作，并且在低速区域处使用电动机/发电机，所以燃料消耗会得以改进并且排放气体能够减少。
混合电动车辆的动力变速系统分为单模式类型和多模式类型。
用于换档控制的诸如离合器和制动器的扭矩传递装置不是必要的，但是燃料消耗由于高速区域处的效率变差而升高，并且需要额外的扭矩增加设备来应用于根据单模式类型的大型车辆。
由于多模式类型具有较高的效率，并且能够自主地增加扭矩，所以多模式类型能够应用于全部大小的车辆。
因此，采用多模式类型而非单模式类型作为混合电动车辆的动力变速系统，并且多模式类型也处于不断的研究中。
多模式类型的动力变速系统包括：多个行星齿轮组、作为电动机和/或发电机操作的多个电动机/发电机、控制行星齿轮组的旋转元件的多个扭矩传递装置、以及用作电动机/发电机的动力源的电池。
多模式类型的动力变速系统根据行星齿轮组、电动机/发电机以及扭矩传递装置的连接而具有不同的操作机构。
此外，多模式类型的动力变速系统根据行星齿轮组、电动机/发电机以及扭矩传递装置的连接而具有不同的特征，例如耐用性、动力传递效率和尺寸。因此，对于混合电动车辆的动力变速系统的连接结构的设计也处于不断的研究中。
公开于该背景技术部分的信息仅仅旨在加深对本发明的一般背景技术的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。
发明内容
本发明的各个方面致力于提供一种混合电动车辆的动力变速系统，其优点是通过利用至少一个扭矩传递装置实现了一个电动车辆(EV)模式、包括输入分配模式和复合分配模式的至少两个扭矩分配模式、以及至少四个固定的换档速度模式。
根据本发明的混合电动车辆的示例性动力变速系统可以包括：输入轴，所述输入轴适合于接收发动机的扭矩；第一行星齿轮组，所述第一行星齿轮组具有第一旋转元件、第二旋转元件和第三旋转元件，其中所述第一旋转元件直接连接到第一电动机/发电机，并且所述第三旋转元件连接到所述输入轴；第二行星齿轮组，所述第二行星齿轮组具有第四旋转元件、第五旋转元件和第六旋转元件，其中所述第四旋转元件直接连接到所述第二旋转元件和第二电动机/发电机，并且所述第五旋转元件选择性地连接到所述第一旋转元件；输出齿轮，所述输出齿轮连接到所述第二行星齿轮组的第六旋转元件；第一离合器，所述第一离合器适合于选择性地连接所述第一行星齿轮组的第一旋转元件和所述第二行星齿轮组的第五旋转元件；第二离合器，所述第二离合器适合于选择性地连接所述第一行星齿轮组的多个旋转元件之中的两个旋转元件；第一制动器，所述第一制动器插置在所述第二行星齿轮组的第五旋转元件和变速器壳体之间；以及第二制动器，所述第二制动器插置在连接到所述第二电动机/发电机的所述第二行星齿轮组的第四旋转元件和所述变速器壳体之间。
所述第一行星齿轮组可以是双小齿轮行星齿轮组，该双小齿轮行星齿轮组具有作为所述第一行星齿轮组的旋转元件的第一太阳轮、第一行星架和第一内齿圈；其中所述第一太阳轮通过第二离合器选择性地连接到所述第一内齿圈，并且选择性地连接到所述第二行星齿轮组的第五旋转元件；所述第一行星架连接到所述第二电动机/发电机，通过第二制动器选择性地连接到所述变速器壳体，并直接连接到所述第二行星齿轮组的第四旋转元件；并且所述第一内齿圈直接连接到所述输入轴。
所述第二行星齿轮组可以是双小齿轮行星齿轮组，该双小齿轮行星齿轮组具有作为所述第二行星齿轮组的旋转元件的第二太阳轮、第二行星架和第二内齿圈；其中所述第二太阳轮直接连接到所述第一行星齿轮组的第一行星架，连接到所述第二电动机/发电机，并通过第二制动器连接到所述变速器壳体；所述第二行星架通过所述第一离合器选择性地连接到所述第一行星齿轮组的第一太阳轮，并通过所述第一制动器选择性地连接到所述变速器壳体；并且所述第二内齿圈连接到所述输出齿轮。
根据本发明的混合电动车辆的另一个示例性动力变速系统可以包括：第一行星齿轮组，所述第一行星齿轮组具有作为其旋转元件的第一太阳轮、第一行星架和第一内齿圈；第二行星齿轮组，所述第二行星齿轮组具有作为其旋转元件的第二太阳轮、第二行星架和第二内齿圈；第一电动机/发电机和第二电动机/发电机，所述第一电动机/发电机和第二电动机/发电机适合于作为电动机或发电机进行操作；扭矩传递装置，所述扭矩传递装置包括第一离合器和第二离合器以及第一制动器和第二制动器；其中所述第一太阳轮选择性地连接到所述第二行星架，并连接到所述第一电动机/发电机，所述第一行星架直接连接到所述第二太阳轮，连接到所述第二电动机/发电机，并通过所述第二制动器选择性地连接到变速器壳体，所述第一内齿圈直接连接到输入轴，并通过所述第二离合器选择性地连接到所述第一太阳轮，所述第二行星架通过所述第一制动器选择性地连接到所述变速器壳体，并且所述第二内齿圈连接到输出齿轮。
所述第一行星齿轮组和所述第二行星齿轮组可以是双小齿轮行星齿轮组。
所述第一制动器可以在EV模式下进行操作，所述第一制动器可以在输入分配模式下进行操作，所述第一离合器可以在复合分配模式下进行操作，所述第二离合器和所述第一制动器可以在固定的第一速度模式下进行操作，所述第一离合器和所述第一制动器可以在固定的第二速度模式下进行操作，所述第一离合器和所述第二离合器可以在固定的第三速度模式下进行操作，或者所述第一离合器和所述第二制动器可以在固定的第四速度模式下进行操作。
通过纳入本文的附图以及随后与附图一起用于说明本发明的某些原理的具体实施方式，本发明的方法和装置所具有的其它特征和优点将更为具体地变得清楚或得以阐明。
附图说明
图1为根据本发明的示例性动力变速系统的示意图。
图2为应用于根据本发明的示例性动力变速系统的每一个操作模式下的示例性扭矩传递装置的操作图。
图3为显示了根据本发明的示例性动力变速系统的组成元件之间的连接的示意图。
图4为用于根据本发明的示例性动力变速系统在电动车辆(EV)模式和输入分配模式下的杠杆图。
图5为用于根据本发明的示例性动力变速系统在复合分配模式下的杠杆图。
图6为用于根据本发明的示例性动力变速系统在固定的第一速度模式下的杠杆图。
图7为用于根据本发明的示例性动力变速系统在固定的第二速度模式下的杠杆图。
图8为用于根据本发明的示例性动力变速系统在固定的第三速度模式下的杠杆图。
图9为用于根据本发明的示例性动力变速系统在固定的第四速度模式下的杠杆图。
具体实施方式
下面将对本发明的各个实施方案详细地作出引用，这些实施方案的实例被显示在附图中并描述如下。尽管本发明将与示例性实施方案相结合进行描述，但是应当意识到，本说明书并非旨在将本发明限制为那些示例性实施方案。相反，本发明旨在不但覆盖这些示例性实施方案，而且覆盖可以被包括在由所附权利要求所限定的本发明的精神和范围之内的各种选择形式、修改形式、等价形式及其它实施方案。
在下文中，将参考所附附图对本发明的各个实施方案进行具体的描述。
对于解释各个实施方案并不必要的部件的描述将被省去，并且在本说明书中相同的组成元件由相同的附图标记表示。
在具体描述中，使用序数区别具有相同术语而不具有特定含义的组成元件。
参考图1所示，根据本发明的各个实施方案的混合电动车辆的动力变速系统通过输入轴IS接收作为动力源的发动机ENG的扭矩，根据车辆的行驶状态改变扭矩，并且通过输出齿轮OG输出经改变的扭矩。
动力变速系统包括第一行星齿轮组PG1和第二行星齿轮组PG2、第一电动机/发电机MG1和第二电动机/发电机MG2、以及扭矩传递装置，该扭矩传递装置包括第一离合器CL1和第二离合器CL2以及第一制动器BK1和第二制动器BK2。
第一行星齿轮组PG1的一个旋转元件直接连接到第二行星齿轮组PG2的一个旋转元件，并且第一行星齿轮组PG1的另一个旋转元件选择性地连接到第二行星齿轮组PG2的另一个旋转元件，从而使第一行星齿轮组PG1和第二行星齿轮组PG2作为一个复合行星齿轮组进行操作。
第一电动机/发电机MG1和第二电动机/发电机MG2是独立的动力源，并且以异于常规的方式作为电动机和发电机进行操作。
第一电动机/发电机MG1作为电动机进行操作，该电动机将扭矩供应到第一行星齿轮组PG1的另一个旋转元件(其选择性地连接到第二行星齿轮组PG2的另一个旋转元件)，或者第一电动机/发电机MG1作为发电机进行操作，该发电机在通过另一个旋转元件的扭矩而旋转时发电。
第二电动机/发电机MG2作为电动机进行操作，该电动机将扭矩供应到第一行星齿轮组PG1的所述一个旋转元件(其直接连接到第二行星齿轮组PG2的所述一个旋转元件)，或者第二电动机/发电机MG2作为发电机进行操作，该发电机在通过所述一个旋转元件的扭矩而旋转时发电。
为此目的，第一电动机/发电机MG1和第二电动机/发电机MG2具有定子和转子，该定子固定到变速器壳体H，该转子分别连接到第二行星齿轮组PG2的另一个旋转元件以及第一行星齿轮组PG1的所述一个旋转元件。
第一离合器CL1选择性地连接第一行星齿轮组PG1的另一个旋转元件和第二行星齿轮组PG2的另一个旋转元件，并且第二离合器CL2选择性地连接第一行星齿轮组PG1的三个旋转元件之中的两个旋转元件。
第一制动器BK1选择性地连接第二行星齿轮组PG2的另一个旋转元件和变速器壳体H，从而使另一个旋转元件作为选择性固定元件进行操作。
第二制动器BK2设置为与第二电动机/发电机MG2平行，并且使第一行星齿轮组PG1的所述一个旋转元件(其连接到第二电动机/发电机MG2)作为选择性固定元件进行操作。
第一行星齿轮组PG1和第二行星齿轮组PG2以及第一电动机/发电机MG1和第二电动机/发电机MG2设置在相同轴线上。
扭矩传递装置包括第一离合器CL1和第二离合器CL2以及第一制动器BK1和第二制动器BK2，这些是通过液压操作的湿型的常规多板摩擦元件。能够理解的是，可以使用其它类型的离合器和制动器，例如干型的摩擦元件。
在此，离合器是连接一个旋转构件与另一个旋转构件的摩擦构件，制动器是连接旋转构件和非旋转构件的摩擦构件。
下面，将具体描述根据本发明的各个实施方案的动力变速系统的组成元件。
第一行星齿轮组PG1是双小齿轮行星齿轮组，并且包括由第一太阳轮S1、第一行星架PC1和第一内齿圈R1构成的三个旋转元件。
第一行星架PC1可旋转地支撑第一小齿轮P1，第一小齿轮P1与第一太阳轮S1和第一内齿圈R1啮合。
第二行星齿轮组PG2是双小齿轮行星齿轮组，并且包括由第二太阳轮S2、第二行星架PC2和第二内齿圈R2构成的三个旋转元件。
第二行星架PC2可旋转地支撑第二小齿轮P2，第二小齿轮P2与第二太阳轮S2和第二内齿圈R2啮合。
第一行星架PC1直接连接到第二太阳轮S2，并且第一太阳轮S1选择性地连接到第二行星架PC2。
此外，第一内齿圈R1直接连接到作为输入构件的输入轴IS，并且第二内齿圈R2直接连接到作为输出构件的输出齿轮OG。
第一电动机/发电机MG1直接连接到第一行星齿轮组PG1的第一太阳轮S1，并且选择性地连接到第二行星齿轮组PG2的第二行星架PC2，从而同时驱动第一太阳轮S1和第二行星架PC2，或者仅驱动第一太阳轮S1。此外，第一电动机/发电机MG1可以作为发电机进行操作。
第二电动机/发电机MG2直接连接到第一行星齿轮组PG1的第一行星架PC1以及第二行星齿轮组PG2的第二太阳轮S2，从而同时驱动第一行星架PC1和第二太阳轮S2。此外，第二电动机/发电机MG2可以作为发电机进行操作。
第一离合器CL1设置在第一行星齿轮组PG1的第一太阳轮S1和第二行星齿轮组PG2的第二行星架PC2之间，并且选择性地连接第一太阳轮S1和第二行星架PC2。
第二离合器CL2设置在第一行星齿轮组PG1的第一太阳轮S1和第一内齿圈R1之间，从而锁定第一行星齿轮组PG1。在此情形下，第一行星齿轮组PG1作为一个旋转构件进行旋转。
第一制动器BK1设置在第二行星齿轮组PG2的第二行星架PC2和变速器壳体H之间，从而使第二行星架PC2作为选择性固定元件进行操作。
第二制动器BK2设置为与第二电动机/发电机MG2平行，并且使第一行星齿轮组PG1的第一行星架PC1以及第二行星齿轮组PG2的第二太阳轮S2作为选择性固定元件进行操作。
图2为应用于根据本发明的示例性动力变速系统的每一个操作模式下的扭矩传递装置的操作图。
参考图2所示，下面将具体描述在每一个换档速度下操作的扭矩传递装置。
第一制动器BK1在EV模式下进行操作。第一制动器BK1在输入分配模式下进行操作。第一离合器CL1在复合分配模式下进行操作。第二离合器CL2和第一制动器BK1在固定的第一速度模式下进行操作。第一离合器CL1和第一制动器BK1在固定的第二速度模式下进行操作。第一离合器CL1和第二离合器CL2在固定的第三速度模式下进行操作。第一离合器CL1和第二制动器BK2在固定的第四速度模式下进行操作。
如上所述，根据本发明的各个实施方案的动力变速系统能够实现一个EV模式、两个扭矩分配模式和四个固定的换挡速度模式。
图3为显示了根据本发明的各个实施方案的动力变速系统的组成元件之间的连接的示意图，并且图4为用于根据本发明的各个实施方案的动力变速系统在EV模式和输入分配模式下的杠杆图。
参考图3和图4所示，第一制动器BK1在EV模式下进行操作。
发动机ENG保持停止，第一行星齿轮组PG1并不影响换档，并且换档通过在EV模式下的第二行星齿轮组PG2的三个旋转元件来完成。
亦即，在第二电动机/发电机MG2操作为将其扭矩输入到第二太阳轮S2的状态下，第二行星架PC2通过第一制动器BK1的操作而作为固定元件进行操作，并且通过作为输出元件的第二内齿圈R2输出减小后的速度。
此外，在第二太阳轮S2的扭矩输入到第一行星架PC1的状态下，发动机ENG停止。因此，第一内齿圈R1作为固定元件进行操作，并且连接到第一太阳轮S1的第一电动机/发电机MG1反向旋转。
此时，如果通过控制第一电动机/发电机MG1而起动发动机，就实现了输入分配模式。
图5为用于根据本发明的各个实施方案的动力变速系统在复合分配模式下的杠杆图。
参考图3和图5所示，第一行星齿轮组PG1和第二行星齿轮组PG2通过四个旋转元件进行操作，这是因为第一离合器CL1在复合分配模式下进行操作。在此状态下，第一电动机/发电机MG1和第二电动机/发电机MG2通过行星齿轮组的旋转元件连接到发动机ENG或输出齿轮OG。
因此，发动机ENG、第一电动机/发电机MG1和第二电动机/发电机MG2能够产生驱动扭矩，它们的一个将扭矩供应到它们的另一个从而进行发电，并且驱动车辆所需的所有速度比能够通过适当地改变其速度而获得。
图6为用于根据本发明的各个实施方案的动力变速系统在固定的第一速度模式下的杠杆图。
参考图3和图6所示，第二离合器CL2和第一制动器BK1在固定的第一速度模式下进行操作。
由于第一行星齿轮组PG1通过第二离合器CL2的操作而变为直接联接状态，所以第二行星齿轮组PG2的三个旋转元件与换档有关。
在此状态下，发动机ENG的扭矩通过第一行星齿轮组PG1的第一行星架PC1输入到第二行星齿轮组PG2的第二太阳轮S2，并且第二行星架PC2通过第一制动器BK1的操作而作为固定元件进行操作。因此，输出以预定速度比减小后的速度，并且实现了固定的第一速度模式。
图7为用于根据本发明的各个实施方案的动力变速系统在固定的第二速度模式下的杠杆图。
参考图3和图7所示，第一离合器CL1和第一制动器BK1在固定的第二速度模式下进行操作。
然后，第一行星齿轮组PG1和第二行星齿轮组PG2通过第一离合器CL1的操作而由四个旋转元件进行操作。
在此状态下，发动机ENG的扭矩通过第一行星齿轮组PG1输入到第二行星齿轮组PG2的第二太阳轮S2，并且第一太阳轮S1和第二行星架PC2通过第一制动器BK1的操作而作为固定元件进行操作。因此，输出以预定速度比减小后的速度，并且实现了固定的第二速度模式。
图8为用于根据本发明的各个实施方案的动力变速系统在固定的第三速度模式下的杠杆图。
参考图3和图8所示，释放在固定的第二速度模式下进行操作的第一制动器BK1，并且第二离合器CL2在固定的第三速度模式下进行操作。
由于第一行星齿轮组PG1通过第二离合器CL2的操作而变为直接联接状态，所以第二行星齿轮组PG2的三个旋转元件与换档有关。
在此状态下，发动机ENG的扭矩通过第一行星齿轮组PG1输入到第二行星齿轮组PG2的第二太阳轮S2和第二行星架PC2。
因此，第二行星齿轮组PG2变为直接联接状态，并且输出与发动机的旋转速度相同的旋转速度，并实现了固定的第三速度模式。
图9为用于根据本发明的各个实施方案的动力变速系统在固定的第四速度模式下的杠杆图。
参考图3和图9所示，释放在固定的第三速度模式下进行操作的第二离合器CL2，并且第二制动器BK2在固定的第四速度模式下进行操作。
然后，第一太阳轮S1和第二行星架PC2通过第一离合器CL1的操作而连接，并且第一行星齿轮组PG1和第二行星齿轮组PG2通过四个旋转元件进行操作。
在此状态下，发动机ENG的扭矩输入到第一内齿圈R1，并且第一行星架PC1和第二太阳轮S2通过第二制动器BK2的操作而作为固定元件进行操作。因此，输出以预定速度比增加后的速度。亦即，实现了具有固定速度比的超速驱动模式。
本发明的各个实施方案实现了一个EV模式、由输入分配模式和复合分配模式构成的两个扭矩分配模式、以及四个固定的换挡速度模式。
因此，本发明的各个实施方案实现了组合固定速度比和可变速度比的多模式类型。所以，可以在车辆的全部速度比下实现较高的效率，并且可以提高燃料经济性。
前面对本发明具体示例性实施方案所呈现的描述是出于说明和描述的目的。前面的描述并不想要成为毫无遗漏的，也不是想要把本发明限制为所公开的精确形式，显然，根据上述教导很多改变和变化都是可能的。选择示例性实施方案并进行描述是为了解释本发明的特定原理及其实际应用，从而使得本领域的其它技术人员能够实现并利用本发明的各种示例性实施方案及其不同选择形式和修改形式。本发明的范围意在由所附权利要求书及其等价形式所限定。

Claims (6)

1.一种混合电动车辆的动力变速系统，包括：
输入轴，所述输入轴适合于接收发动机的扭矩；
第一行星齿轮组，所述第一行星齿轮组具有第一旋转元件、第二旋转元件和第三旋转元件，其中所述第一旋转元件直接连接到第一电动机/发电机，并且所述第三旋转元件连接到所述输入轴；
第二行星齿轮组，所述第二行星齿轮组具有第四旋转元件、第五旋转元件和第六旋转元件，其中所述第四旋转元件直接连接到所述第二旋转元件和第二电动机/发电机，并且所述第五旋转元件选择性地连接到所述第一旋转元件；
输出齿轮，所述输出齿轮连接到所述第二行星齿轮组的第六旋转元件；
第一离合器，所述第一离合器适合于选择性地连接所述第一行星齿轮组的第一旋转元件和所述第二行星齿轮组的第五旋转元件；
第二离合器，所述第二离合器适合于选择性地连接所述第一行星齿轮组的多个旋转元件之中的两个旋转元件；
第一制动器，所述第一制动器插置在所述第二行星齿轮组的第五旋转元件和变速器壳体之间；以及
第二制动器，所述第二制动器插置在连接到所述第二电动机/发电机的所述第二行星齿轮组的第四旋转元件和所述变速器壳体之间。
2.根据权利要求1所述的混合电动车辆的动力变速系统，其中所述第一行星齿轮组是双小齿轮行星齿轮组，该双小齿轮行星齿轮组具有作为所述第一行星齿轮组的旋转元件的第一太阳轮、第一行星架和第一内齿圈；
其中所述第一太阳轮通过第二离合器选择性地连接到所述第一内齿圈，并且选择性地连接到所述第二行星齿轮组的第五旋转元件；
所述第一行星架连接到所述第二电动机/发电机，通过第二制动器选择性地连接到所述变速器壳体，并直接连接到所述第二行星齿轮组的第四旋转元件；并且
所述第一内齿圈直接连接到所述输入轴。
3.根据权利要求2所述的混合电动车辆的动力变速系统，其中所述第二行星齿轮组是双小齿轮行星齿轮组，该双小齿轮行星齿轮组具有作为所述第二行星齿轮组的旋转元件的第二太阳轮、第二行星架和第二内齿圈；
其中所述第二太阳轮直接连接到所述第一行星齿轮组的第一行星架，连接到所述第二电动机/发电机，并通过第二制动器连接到所述变速器壳体；
所述第二行星架通过所述第一离合器选择性地连接到所述第一行星齿轮组的第一太阳轮，并通过所述第一制动器选择性地连接到所述变速器壳体；并且
所述第二内齿圈连接到所述输出齿轮。
4.一种混合电动车辆的动力变速系统，包括：
第一行星齿轮组，所述第一行星齿轮组具有作为其旋转元件的第一太阳轮、第一行星架和第一内齿圈；
第二行星齿轮组，所述第二行星齿轮组具有作为其旋转元件的第二太阳轮、第二行星架和第二内齿圈；
第一电动机/发电机和第二电动机/发电机，所述第一电动机/发电机和第二电动机/发电机适合于作为电动机或发电机进行操作；
扭矩传递装置，所述扭矩传递装置包括第一离合器和第二离合器以及第一制动器和第二制动器；
其中所述第一太阳轮选择性地连接到所述第二行星架，并连接到所述第一电动机/发电机，
所述第一行星架直接连接到所述第二太阳轮，连接到所述第二电动机/发电机，并通过所述第二制动器选择性地连接到变速器壳体，
所述第一内齿圈直接连接到输入轴，并通过所述第二离合器选择性地连接到所述第一太阳轮，
所述第二行星架通过所述第一制动器选择性地连接到所述变速器壳体，并且
所述第二内齿圈连接到输出齿轮。
5.根据权利要求4所述的混合电动车辆的动力变速系统，其中所述第一行星齿轮组和所述第二行星齿轮组是双小齿轮行星齿轮组。
6.根据权利要求4所述的混合电动车辆的动力变速系统，其中所述第一制动器在电动车辆模式下进行操作，
所述第一制动器在输入分配模式下进行操作，
所述第一离合器在复合分配模式下进行操作，
所述第二离合器和所述第一制动器在固定的第一速度模式下进行操作，
所述第一离合器和所述第一制动器在固定的第二速度模式下进行操作，
所述第一离合器和所述第二离合器在固定的第三速度模式下进行操作，或者
所述第一离合器和所述第二制动器在固定的第四速度模式下进行操作。
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