CN108099578B - 单电机混合动力汽车多模耦合动力传动系统 - Google Patents

单电机混合动力汽车多模耦合动力传动系统 Download PDF

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CN108099578B
CN108099578B CN201711407199.XA CN201711407199A CN108099578B CN 108099578 B CN108099578 B CN 108099578B CN 201711407199 A CN201711407199 A CN 201711407199A CN 108099578 B CN108099578 B CN 108099578B
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gear
motor
transmission
power
clutch
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CN108099578A (zh
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胡建军
蒋星月
牛喜渊
查俊林
郑玲玲
赵伟
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Chongqing University
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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
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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
    • 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
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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
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • 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
    • 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

Abstract

本发明涉及一种单电机混合动力汽车多模耦合动力传动系统，属于新能源汽车动力总成部件技术领域，包括发动机、行星齿轮机构、第一齿轮、制动器、第二离合器、第二齿轮，第一离合器、第三齿轮、逆变器、动力电池、电机、第三离合器、第四齿轮、第五齿轮、变速器、主减速器及差速器总成。本发明通过控制三个离合器和制动器的接合与否改变电机与发动机的耦合方式以及电机相对于变速器的位置，实现电机与发动机转速耦合、电机与发动机P2并联式转矩耦合和电机与发动机P3并联式转矩耦合，提高了该系统的加速性能，解决了发动机低负荷效率低的问题，并降低了系统路径转换效率损失。

Description

单电机混合动力汽车多模耦合动力传动系统
技术领域
本发明属于新能源汽车动力总成部件技术领域，涉及电、液混合动力系统的驱动与制动装置，具体涉及一种单电机混合动力汽车多模耦合动力传动系统。
背景技术
新能源汽车以其低消耗、低污染等优点，成为目前汽车发展的重要方向。其中纯电动汽车由于其单次充电续航里程短，车辆制造成本高等缺点不能得到广泛应用。而混合动力汽车虽仍主要通过燃油来提供动力，但相比于传统燃油汽车，能量利用率得到显著提升，污染排放明显减少，主流的汽车制造商均已进行混合动力汽车的研发和制造。
目前混合动力系统中，双电机加发动机作为动力源的混合动力系统，存在动力源多，成本高，系统路径能量转换损失大等问题；而单电机加发动机作为动力源的混合动力系统，又存在发动机低负荷时效率低，能量损失严重等问题。
申请号为201710114847.6的中国专利提供了一种双行星排双模功率分流式混合动力系统，该系统包括发动机、前行星排、后行星排、离合器系统、制动器、一号电机和二号电机；通过离合器系统和制动器的接合与分离可以实现不同工作模式的切换。该方案结构设计紧凑，采用功率分流模式提高了发动机的工作效率；但该方案采用双电机功率分流模式，增加了系统路径能量转换损失，而且动力源多，成本高。
申请号为CN201220214161.7的中国专利提供了一种单轴并联混合动力系统，该系统包括依次串联连接的发动机、离合器一、ISG电机、离合器二和变速器，发动机、离合器一、ISG电机、离合器二和变速器均与总线连接，发动机与总线之间连接有发动机控制器，离合器一与总线之间连接有离合器一控制器，ISG电机与总线之间连接有ISG电机控制器和高压蓄电池，离合器二与总线之间连接有离合器二控制器，变速器与总线之间连接有变速器控制器，总线连接有整车控制器。该方案布局简单，能够方便的实现纯电动驱动模式和并联混合驱动模式，但系统处于低负荷时，无法通过电机调速来调节发动机的工作区间，使得发动机效率低下，影响整个系统的经济性能。
发明内容
有鉴于此，本发明的目的在于提供一种单电机混合动力汽车多模耦合动力传动系统，能够提高发动机低负荷时的效率和系统路径能量转换利用率，并提升混合动力系统的经济性。
为达到上述目的，本发明提供如下技术方案：
本发明提供的，包括发动机、行星齿轮机构、制动器、动力电池、电机、变速器、主减速器及差速器总成，行星齿轮机构由齿圈、行星轮、行星架、太阳轮组成，发动机与齿圈连接，行星架通过同轴齿轮啮合有第一齿轮，第一齿轮通过动力输入齿轮轴与变速器输入端连接，变速器输出端通过动力输出齿轮轴与主减速器及差速器总成连接；电机通过逆变器与动力电池电气连接，其一端输出轴通过第二离合器与太阳轮上的太阳轮轴连接，另一端输出轴通过第三离合器连接有第四齿轮，制动器设置在太阳轮轴上，第二离合器与电机输出轴之间的连接轴上设有第二齿轮；动力输入齿轮轴上通过第一离合器设有与第二齿轮啮合的第三齿轮，动力输出齿轮轴上设有与第四齿轮啮合的第五齿轮。
进一步，制动器的锁止部通过花键与太阳轮轴连接，固定部通过凸缘与变速器壳体连接。
进一步，发动机、太阳轮、同轴齿轮、第二齿轮、电机和第四齿轮同轴设置，第一齿轮、第三齿轮和第五齿轮同轴设置；行星架通过同轴齿轮与第一齿轮等速齿轮传动，第二齿轮与第三齿轮等速齿轮传动，第四齿轮与第五齿轮等速齿轮传动。
进一步，第一离合器为湿式多片离合器。
进一步，变速器为机械式自动变速器。
进一步，动力电池为电动车蓄电池。
进一步，行星架与同轴齿轮、太阳轮与太阳轮轴、第一齿轮与动力输入齿轮轴、第五齿轮与动力输出齿轮轴均各自为一体结构。
本发明与现有技术相比，其显著优点在于：本发明通过控制三个离合器和制动器的接合与否改变电机与发动机的耦合方式以及电机相对于变速器的位置，实现电机与发动机转速耦合、电机与发动机P2并联式转矩耦合和电机与发动机P3并联式转矩耦合，提高了该系统的加速性能，解决了发动机低负荷效率低的问题，并通过采用单电机混合动力系统降低了系统路径转换效率损失。
本发明的其他优点、目标和特征在某种程度上将在随后的说明书中进行阐述，并且在某种程度上，基于对下文的考察研究对本领域技术人员而言将是显而易见的，或者可以从本发明的实践中得到教导。本发明的目标和其他优点可以通过下面的说明书来实现和获得。
附图说明
为了使本发明的目的、技术方案和优点更加清楚，下面将接合附图对本发明作优选的详细描述，其中：
图1为本发明所述的单电机混合动力汽车多模耦合动力传动系统；
图2为EV-P2工作模式的能量流动示意图；
图3为EV-P3工作模式的能量流动示意图；
图4为EVT工作模式的能量流动示意图；
图5为并联P2工作模式的能量流动示意图；
图6为并联P3工作模式的能量流动示意图；
图7为RG1工作模式的能量流动示意图；
图8为RG2工作模式的能量流动示意图；
其中，1为发动机、2为齿圈、3为行星轮、4为行星架，41为同轴齿轮、5为太阳轮，51为太阳轮轴、6为第一齿轮，61为动力输入齿轮轴，7为制动器，8为第二离合器、9为第二齿轮，10为第一离合器，11为第三齿轮，12为逆变器，13为动力电池，14为电机、15为第三离合器、16为第四齿轮，17为第五齿轮，18为变速器，19为动力输出齿轮轴，20为主减速器及差速器总成。
具体实施方式
以下将接合附图，对本发明的优选实施例进行详细的描述；应当理解，优选实施例仅为了说明本发明，而不是为了限制本发明的保护范围。
本实施基本如图1所述，单电机混合动力汽车多模耦合动力传动系统，包括发动机1、行星齿轮机构、制动器7、动力电池13、电机14、变速器18、主减速器及差速器总成20，行星齿轮机构由齿圈2、行星轮3、行星架4、太阳轮5组成，发动机1与齿圈2连接，行星架4通过同轴齿轮41啮合有第一齿轮6，第一齿轮6通过动力输入齿轮轴61与变速器18输入端连接，变速器18输出端通过动力输出齿轮轴19与主减速器及差速器总成20连接；电机14通过逆变器12与动力电池13电气连接，其一端输出轴通过第二离合器8与太阳轮5上的太阳轮轴51连接，另一端输出轴通过第三离合器15连接有第四齿轮16，制动器7设置在太阳轮轴51上，第二离合器8与电机14输出轴之间的连接轴上设有第二齿轮9；动力输入齿轮轴61上通过第一离合器10设有与第二齿轮9啮合的第三齿轮11，动力输出齿轮轴19上设有与第四齿轮16啮合的第五齿轮17。采用上述方案，本发明通过控制三个离合器和制动器的接合与否改变电机与发动机的耦合方式以及电机相对于变速器的位置，实现电机与发动机转速耦合、电机与发动机P2并联式转矩耦合和电机与发动机P3并联式转矩耦合，提高了该系统的加速性能，解决了发动机低负荷效率低的问题，并通过采用单电机混合动力系统降低了系统路径转换效率损失。
本实施例中的制动器7的锁止部通过花键(未画出)与太阳轮轴51连接，固定部通过凸缘(未画出)与变速器18壳体连接。
本实施例中的发动机1、太阳轮5、同轴齿轮41、第二齿轮9、电机14和第四齿轮16同轴设置，第一齿轮6、第三齿轮11和第五齿轮17同轴设置；行星架4通过同轴齿轮41与第一齿轮6等速齿轮传动，第二齿轮9与第三齿轮11等速齿轮传动，第四齿轮16与第五齿轮17等速齿轮传动。
本实施例中的第一离合器10采用湿式多片离合器；变速器18采用机械式自动变速器；动力电池13采用电动车蓄电池，如铅酸蓄电池。
本实施例中的行星架4与同轴齿轮41、太阳轮5与太阳轮轴51、第一齿轮6与动力输入齿轮轴61、第五齿轮17与动力输出齿轮轴19均各自为一体结构，便于装配，且结构稳定可靠。
下面详细的阐述一下本发明的工作原理，如图2-8所述，本发明的单电机电动汽车多模耦合动力传动系统共有7种工作模式，可实现电机不同的驱动形式，发动机与电机转速耦合和不同形式的转矩耦合，各工作模式下执行机构工作状态见表1所示，其中，C1为第一离合器10，C2为第二离合器8，C3为第三离合器15，B为制动器7；具体模式详述如下：
表1工作模式执行元件附表
Figure BDA0001520579060000041
(1)EV-P2模式：即电机14连在变速器18输入端单独驱动模式；第一离合器10接合，制动器7、第二离合器8和第三离合器15分离，电机14处于驱动状态。第一离合器10将空套在动力输入齿轮轴61上的第三齿轮11与动力输入齿轮轴61连在一起，电机14输出的动力经第二齿轮9，第三齿轮11，动力输入齿轮轴61，变速器18到主减速器及差速器总成20。由于电机14输出的动力经过变速器18输出到主减速器及差速器总成20，这样可以拓宽电机14的高效区。EV-P2模式下，系统的能量流动路径如图2所示。
(2)EV-P3模式：即电机14连在变速器18输出端单独驱动模式；第三离合器15接合，第一离合器10、第二离合器8和制动器7分离，电机14处于驱动状态。电机14输出的动力经第三离合器15、第四齿轮16，第五齿轮17，动力输出齿轮轴19到主减速器及差速器总成20。当汽车处于低扭工况时，电机14输出动力不经变速器18直接传递给主减速器及差速器总成20会显著提升系统效率。EV-P3模式下，系统的能量流动路径如图3所示。
(3)EVT模式：即电机14与发动机1转速耦合驱动模式；第二离合器8接合，第一离合器10、制动器7和第三离合器15分离，电机14处于驱动状态。发动机1连接行星齿轮机构的齿圈2，电机14经第二离合器8连接到太阳轮5上，发动机1和电机14动力合流后经行星架4，同轴齿轮41，第一齿轮6，动力输入齿轮轴61，变速器18传递给主减速器及差速器总成20。电机14与发动机1转速耦合实现发动机调速，变速器18为系统变矩，将发动机1工作点调至高效区，显著提升燃油经济性，减小污染。EVT模式下，系统的能量流动路径如图4所示。
(4)并联P2模式：即电机14连在变速器18输入端与发动机1转矩耦合联合驱动模式；第一离合器10和制动器7接合，第二离合器8和第三离合器15分离，电机14处于驱动状态。第一离合器10将空套在动力输入齿轮轴61上的齿轮11与动力输入齿轮轴61连在一起，电机14输出的动力经第二齿轮9，第三齿轮11，第一离合器10到动力输入齿轮轴61，发动机1输出的动力经齿圈2，行星架4，同轴齿轮41，第一齿轮6到动力输入齿轮轴61，电机14和发动机1输出的动力在动力输入齿轮轴61转矩耦合后经变速器18输出到主减速器及差速器总成20。并联P2模式下，电机14与发动机1在变速器输入端转矩耦合，系统的能量流动路径如图5所示。
(5)并联P3模式：即电机14连在变速器18输出端与发动机1转矩耦合联合驱动模式；第三离合器15和制动器7接合，第一离合器10和第二离合器8分离，电机14处于驱动状态。电机14输出的动力经第三离合器15，第四齿轮16，第五齿轮17到动力输出齿轮轴19，发动机1输出的动力经齿圈2，行星架4，同轴齿轮41，第一齿轮6，动力输入齿轮轴61，变速器18到动力输出齿轮轴19，电机14和发动机1输出的动力在动力输出齿轮轴19转矩耦合后输出到主减速器及差速器总成20。并联P3模式下，电机14与发动机1在变速器输出端转矩耦合，系统的能量流动路径如图6所示。
(6)RG1模式：即电机14连在变速器18输入端制动模式；第一离合器10接合，制动器7、第二离合器8和第三离合器15分离，电机14处于发电状态。第一离合器10将空套在动力输入齿轮轴61上的齿轮11与动力输入齿轮轴61连在一起，主减速器及差速器总成20传递的动力经变速器18，动力输入齿轮轴61，第三齿轮11，第一离合器10，第二齿轮9到电机14。RG1模式下，再生制动回收的动力经变速器到电机，将电机的工作点调至高效区，系统的能量流动路径如图7所示。
(7)RG2模式：即电机14连在变速器18输出端制动模式；第三离合器15接合，制动器7、第二离合器8和第一离合器10分离，电机14处于发电状态。主减速器及差速器总成20传递的动力经变速器18，动力输出齿轮轴19，第五齿轮17，第四齿轮16，第三离合器15到电机14。RG2模式下，再生制动回收的动力不经变速器到电机，会显著提高系统效率，系统的能量流动路径如图8所示。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (7)

1.单电机混合动力汽车多模耦合动力传动系统，包括发动机(1)、行星齿轮机构、制动器(7)、动力电池(13)、电机(14)、变速器(18)、主减速器及差速器总成(20)，行星齿轮机构由齿圈(2)、行星轮(3)、行星架(4)、太阳轮(5)组成，其特征在于，发动机与齿圈连接，行星架通过同轴齿轮(41)啮合有第一齿轮(6)，第一齿轮通过动力输入齿轮轴(61)与变速器输入端连接，变速器输出端通过动力输出齿轮轴(19)与主减速器及差速器总成连接；
电机通过逆变器(12)与动力电池电气连接，其一端输出轴通过第二离合器(8)与太阳轮上的太阳轮轴连接，另一端输出轴通过第三离合器(15)连接有第四齿轮(16)，制动器设置在太阳轮轴上，第二离合器与电机输出轴之间的连接轴上设有第二齿轮(9)；
动力输入齿轮轴上通过第一离合器(10)设有与第二齿轮啮合的第三齿轮(11)，动力输出齿轮轴上设有与第四齿轮啮合的第五齿轮(17)。
2.根据权利要求1所述的单电机混合动力汽车多模耦合动力传动系统，其特征在于，制动器的锁止部通过花键与太阳轮轴连接，固定部通过凸缘与变速器壳体连接。
3.根据权利要求1所述的单电机混合动力汽车多模耦合动力传动系统，其特征在于，发动机、太阳轮、同轴齿轮、第二齿轮、电机和第四齿轮同轴设置，第一齿轮、第三齿轮和第五齿轮同轴设置；行星架通过同轴齿轮与第一齿轮等速齿轮传动，第二齿轮与第三齿轮等速齿轮传动，第四齿轮与第五齿轮等速齿轮传动。
4.根据权利要求1所述的单电机混合动力汽车多模耦合动力传动系统，其特征在于，第一离合器为湿式多片离合器。
5.根据权利要求1所述的单电机混合动力汽车多模耦合动力传动系统，其特征在于，变速器为机械式自动变速器。
6.根据权利要求1所述的单电机混合动力汽车多模耦合动力传动系统，其特征在于，动力电池为电动车蓄电池。
7.根据权利要求1所述的单电机混合动力汽车多模耦合动力传动系统，其特征在于，行星架与同轴齿轮、太阳轮与太阳轮轴、第一齿轮与动力输入齿轮轴、第五齿轮与动力输出齿轮轴均各自为一体结构。
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