CN109664745A - 具有双电机的混合动力系统 - Google Patents

具有双电机的混合动力系统 Download PDF

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CN109664745A
CN109664745A CN201710959673.3A CN201710959673A CN109664745A CN 109664745 A CN109664745 A CN 109664745A CN 201710959673 A CN201710959673 A CN 201710959673A CN 109664745 A CN109664745 A CN 109664745A
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motor
gear
combustion engine
internal combustion
hybrid power
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梅近仁
黄志富
狄杰
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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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
    • B60K6/24—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 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 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 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
    • B60K6/26—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 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 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 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
    • B60K6/28—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 electric energy storing means, e.g. batteries or capacitors
    • 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
    • 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
    • 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

本发明公开了一种具有双电机的混合动力系统，包括：内燃机以及第一电机和第二电机，其中，在所述内燃机和所述第一电机之间设有离合器，所述内燃机，所述离合器和所述第一电机被依次连接到第一输入轴上，所述第二电机连接到第二输入轴上。根据本发明的设计方案，所述第一输入轴在所述第一电机的输出端通过具有多个挡位的第一变速装置与输出轴相连接，所述第二输入轴在所述第二电机的输出端通过具有多个挡位的第二变速装置与所述输出轴相连接。

Description

具有双电机的混合动力系统
技术领域
本发明涉及一种具有双电机的混合动力系统，包括：内燃机以及第一电机和第二电机，其中，在内燃机和第一电机之间设有离合器，所述内燃机，所述第一电机和所述离合器连接到第一输入轴上，所述第二电机连接到第二输入轴上。
背景技术
混合动力系统通常包括内燃机(ICE)和电动机(E-Motor)两种驱动装置，在这两种驱动装置之间可以实现平顺地切换，从而同时发挥内燃机车辆和电动车辆的优点，是减少石油消耗和二氧化碳排放的有效技术途径之一。在现有技术中，已知多种具有双电机的混合动力系统，如丰田E-CVT，吉利CHS，本田iMMD和上汽EDU这样的两种混合动力传动系统。
丰田的E-CVT，又称为电控无极变速器，它包括两个电机和一个行星齿轮传动装置，该行星齿轮传动装置具有外齿圈(连接第二电机和输出轴)，行星齿轮组(连接发动机)和太阳齿轮(连接第一电机)，由于位于行星齿轮传动装置中间的行星齿轮组是被发动机驱动，所以当行星齿轮组转动时能够带动外齿圈转动和太阳轮转动。因而，动力传递流为：发动机-第一电机-行星齿轮组-外齿圈-输出轴，或者第二电机-外齿圈-输出轴。优点在于：变速平顺，传动效率高，结构简单。缺点是：不具有纯发动机运行模式，电动机的传动比是固定不可变的。
吉利的CHS，结构与丰田的E-CVT相类似，区别在于其核心动力分流机构中使用双排行星齿轮系，两个行星齿轮组相互啮合，且共用一套行星齿轮架。通过两个行星齿轮组能够获得比较宽的传动比，但是其结构更加复杂，且需要多个离合器。
本田的i-MMD，包括发动机，发电机，驱动用电机和动力分离装置的电气式无极变速箱，动力控制单元(PCU)。在混动模式下，发动机与电机式以串联的方式输出，最终只是靠电机来驱动车辆，并非发动机与电动机同时驱动车辆，这是与丰田E-CVT最主要的区别。这种混合动力系统的缺点也是：电动机的传速比是固定的。
上汽EDU，包括内燃机，一个ISG电机和一个TM电机，两个离合器以及一个二挡传动齿轮组。由于内燃机和两个电机的同轴设置，在换挡时需要中断扭矩传送。
发明内容
因此，本发明所要解决的技术问题是提供一种改进的具有双电机的混合动力系统，该混合动力系统能够克服上述已知混合动力系统的缺点，尤其具有比较宽的传速比且在换挡时不会中断动力传输。
所述技术问题被一种具有双电机的混合动力系统所解决，根据本发明的混合动力系统包括：内燃机以及第一电机和第二电机，其中，在内燃机和第一电机之间设有离合器，将内燃机，离合器和第一电机依次连接到第一输入轴上，第二电机连接到第二输入轴上，根据本发明第一输入轴在第一电机的输出端通过具有多个挡位的第一变速装置向输出轴相连接，第二输入轴在第二电机的输出端通过具有多个挡位的第二变速装置也与同样的输出轴相连接。由于具有多挡位的变速装置，内燃机和第一电机通过第一输入轴的扭矩传送以及第二电机通过第二输入轴的扭矩传送能够具有多个传速比，从而能够提高扭矩传送的效率。由内燃机，离合器和第一电机通过第一输入轴构成第一动力系统，由第二电机通过第二输入轴构成第二动力系统。两个动力系统能够串联式工作，即内燃机带动第一电机发电，向第二电机提供电能以驱动车辆；两个动力系统也能够并联式工作，即分别转动第一输入轴和第二输入轴以带动输出轴转动，以便驱动车辆；两个动力系统还能够分别独自运行来驱动车辆。通过两个动力系统的相互协助，能够尽量地发挥各自的优势，从而提高整个混合系统的效率，实现更好地燃油效率。
根据优选的实施方式，第一变速装置通过第一同步器进行换挡操作；第二变速装置通过第二同步器进行换挡操作。有利的是，第一变速装置和第二变速装置分别各自设置两个挡位，将第一同步器和第二同步器相应地设置在各自变速装置的两个挡位之间，从而使得换挡操作十分便捷。还有利的是，第一变速装置和/或第二变速装置是齿轮传动装置，以便简化整体结构和操作。根据另外的优选实施方式，在第一同步器进行换挡时，第二输入轴向输出轴提供动力，并且在第二同步器进行换挡时，第一输入轴向输出轴提供动力，从而保证了在换挡期间，车辆不会失去动力。优选的是，在第一同步器或第二同步器要进行换挡之前，将第二同步器或第一同步器挂入相应的挡位，从而保证了车辆动力供给的持续性。
根据优选的实施方式，根据本发明的混合动力系统中的离合器是干式离合器。由于在根据本发明的混合动力系统中的离合器设在内燃机和电机之间，主要起的作用是分离和切断动力，使用干式离合器能更容易地接合和分离动力，在较短时间的半离合状态下工作，离合器也不会过热。
根据优选的实施方式，在混合动力系统中设有能量储存装置，优选是电池，第一电机与第二电机都与该能量储存装置电连接。优选的是，两个电机都可为该能量储存装置供给电能，并且该能量储存装置也可为两个电机提供电能。
附图说明
根据如下附图对实施例的说明，可以获得本发明的其它特征和优点。
附图为：
图1：根据本发明的混合动力系统的结构示意图。
具体实施方式
图1示出根据本发明的混合动力系统的结构示意图。如图所示，内燃机1通过离合器2，优选干式离合器与第一电机3连接，该第一电机3连接到第一输入轴6上，其中，在第一输入轴6上设置具有两个挡位，即第二挡位3.1和第四挡位3.2的第一齿轮传动装置，在该齿轮传动装置中通过第一同步器4在两个挡位4.1和4.2之间切换，从而实现传速比的变化；第二电机9被连接在第二输入轴8上，其中，在第二输入轴8上设置具有两个挡位，即第一挡位10.1和第三挡位10.2的第二齿轮传动装置，在该齿轮传动装置中通过第二同步器10在两个挡位之间进行切换。因此，内燃机和第一电机具有两个挡位，第二电机也具有两个挡位，从而能实现较宽的转速比，并且由于具有两个输入轴，在一个输入轴进行换挡时，另一个输入轴可以继续提供动力，从而保证在换挡时不会中断动力传输。
利用根据本发明的混合动力系统的这种结构，能够实现如下这些不同的驱动模式：
一，混动模式：内燃机和电机同时运行，又可分为
1)第一混动模式(串联模式)：内燃机1处于运行模式，离合器2被闭合，第一电机3处于发电机模式，第二电机9处于驱动模式，第一同步器4被断开，第二同步器10接合第一挡10.1或第三挡10.2。因此，内燃机1驱动第一电机3，该第一电机3产生用来给电池5充电的电能，电池的电能驱动第二电机9以驱动车辆运行。
2)第二混动模式：内燃机1处于驱动模式，离合器2被闭合，第一电机3处于驱动模式，第二电机9不运转，第一同步器4接合第二挡4.1或第四挡4.2，第二同步器被断开。因此，内燃机1与第一电机3共同驱动车辆运行，第一电机3能够提供正扭矩也能够提供负扭矩(例如在充电时)；在第一同步器4进行换挡时，例如从第二挡位4.1切换到第四挡位4.2，可以运行第二电机9，从而保证在换挡时不中断动力供应。
3)第三混动模式：内燃机1处于运行模式，离合器2被闭合，第一电机3不运转，第二电机9处于驱动模式，第一同步器4接合第二挡4.1或第四挡4.2，第二同步器10接合第一档10.1或第三档10.2。因此，内燃机1与第二电机9共同驱动车辆运行，第二电机9能够正扭矩也能够提供负扭矩；由于两个输入中都在提供动力，所以只要两个同步器不同时进行换挡，就能够保证动力供应地持续性。
二，纯电动模式：只由电机提供动力；又可分为，
1)第一纯电动模式：内燃机1不运转，离合器2被断开，第一电机3处于驱动模式，第二电机9不运转，第一同步器4接合第二挡4.1或第四挡4.2，第二同步器10被断开。因此，只由第一电机3提供动力来驱动车辆。
2)第二纯电动模式：内燃机1不运转，离合器2被断开，第一电机3不运转，第二电机9处于驱动模式，第一同步器4被断开，第二同步器10接合第一档10.1或第三档10.2。因此，只由第二电机9提供动力来驱动车辆。
三，纯内燃机驱动模式：
内燃机1处于驱动模式，离合器2被闭合，第一电机3和第二电机9都不运转，第一同步器4接合第二挡4.1或第四挡4.2，第二同步器10被断开。因此，只由内燃机1提供动力来驱动车辆。
四，启动内燃机模式：
1)第一启动内燃机模式：离合器3被闭合，第一电机3处于驱动模式，以转动内燃机1，第二电机9驱动驱动模式，第一同步器4被断开，第二同步器10接合第一挡10.1或第三挡10.2。因此，第二电机9提供动力驱动车辆，第一电机3启动内燃机1。
2)第二启动内燃机模式：离合器3被闭合，第一电机3处于驱动模式，以转动内燃机1，第二电机9不运转，第一同步器4接合第二挡4.1或第四挡4.2，第二同步器10被断开。因此，第一电机3启动内燃机1，同时第一电机3也提供动力驱动车辆。
五，能量回收模式：
内燃机1停止运转，离合器2被断开，第一同步器4和/或第二同步器10接合，则输出轴7带动第一输入轴6和/或第二输入轴8转动，使得第一电机和/或第二电机进行发电，将车辆的动能转换为电能，储存到电池5中。
虽然在上述说明中示例性地描述了可能的实施例，但是应该理解到，仍然通过所有已知的和此外技术人员容易想到的技术特征和实施方式的组合存在大量实施例的变化。此外还应该理解到，示例性的实施方式仅仅作为一个例子，这种实施例绝不以任何形式限制本发明的保护范围、应用和构造。通过前述说明更多地是向技术人员提供一种用于转化至少一个示例性实施方式的技术指导，其中，只要不脱离权利要求书的保护范围，便可以进行各种改变，尤其是关于所述部件的功能和结构方面的改变。例如，在前述实施例中，第一齿轮传动装置和第二齿轮传动装置都只具有两个挡位，当然还可以设置更多的挡位，并且第一齿轮传动装置的挡位数和第二齿轮传动装置的挡位数也可以不同，这些设计方案也都在本发明的保护范围之内。
附图标记列表
1 内燃机
2 离合器
3 第一电机
4.1 第二挡位
4.2 第四挡位
4 第一同步器
5 电池
6 第一输入轴
7 输出轴
8 第二输入轴
9 第二电机
10.1 第一挡位
10.2 第三挡位
10 第二同步器

Claims (7)

1.一种具有双电机的混合动力系统，包括：内燃机以及第一电机和第二电机，其中，在所述内燃机和所述第一电机之间设有离合器，所述内燃机，所述离合器和所述第一电机被依次连接到第一输入轴上，所述第二电机连接到第二输入轴上，其特征在于，所述第一输入轴在所述第一电机的输出端通过具有多个挡位的第一变速装置与输出轴相连接，所述第二输入轴在所述第二电机的输出端通过具有多个挡位的第二变速装置与所述输出轴相连接。
2.根据权利要求1所述的混合动力系统，其特征在于，所述第一变速装置通过第一同步器进行换挡操作。
3.根据权利要求1所述的混合动力系统，其特征在于，所述第二变速装置通过第二同步器进行换挡操作。
4.根据权利要求2或3所述的混合动力系统，其特征在于，在所述第一同步器进行换挡时，所述第二输入轴向所述输出轴提供动力，并且在所述第二同步器进行换挡时，所述第一输入轴向所述输出轴提供动力。
5.根据权利要求1所述的混合动力系统，其特征在于，所述离合器是干式离合器。
6.根据权利要求1所述的混合动力系统，其特征在于，在所述混合动力系统中设有能量储存装置，所述第一电机与所述第二电机都与所述能量储存装置电连接。
7.根据权利要求1所述的混合动力系统，其特征在于，所述第一变速装置和/或所述第二变速装置是齿轮传动装置。
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