CN112644267A - 驱动装置 - Google Patents

驱动装置 Download PDF

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Publication number
CN112644267A
CN112644267A CN202011081444.4A CN202011081444A CN112644267A CN 112644267 A CN112644267 A CN 112644267A CN 202011081444 A CN202011081444 A CN 202011081444A CN 112644267 A CN112644267 A CN 112644267A
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China
Prior art keywords
shaft
gear
rotating electric
electric machine
rotating
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Granted
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CN202011081444.4A
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CN112644267B (zh
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矢野景太
河合则和
生形彻
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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
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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
    • B60K6/36—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
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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
    • 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
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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
    • B60K6/24—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
    • B60K6/36—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
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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
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    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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    • 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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Abstract

提供一种能够使变速器小型化的驱动装置。驱动装置(10)具备发动机(ENG)、发电机(GEN)、马达(MOT)及变速器(T)。变速器(T)具备发电机轴(23)、与发电机轴(23)平行配置的马达轴(25)、在发电机轴(23)上设置的发电机从动齿轮(40)、以及在马达轴(25)上设置的马达驱动齿轮(52)。发电机(GEN)的轴向上的宽度(L1)大于马达(MOT)的轴向上的宽度(L2)，在配置有与发电机从动齿轮(40)啮合的发电机驱动齿轮(32)的轴即输入轴(21)上设置的齿轮数少于在配置有与马达驱动齿轮(52)啮合的马达从动齿轮(66)的轴即副轴(27)上设置的齿轮数。

Description

驱动装置
技术领域
本发明涉及一种能够搭载于车辆上的驱动装置。
背景技术
近年来，已知有一种搭载了驱动装置的混合动力车辆，该驱动装置具备发动机、马达、发电机以及变速器(例如，专利文献1至3)。变速器将发动机的驱动力传递至发电机，并且将发动机及马达中的至少一方的驱动力传递至车轴。
在先技术文献
专利文献1：日本特开2017-222197号公报
专利文献2：日本特开2018-222198号公报
专利文献3：日本特表2017-526571号公报
由于在车辆的发动机室中，除驱动装置以外还搭载了各种设备，因此驱动装置优选为尽量小。尤其，在引用文献1至3中，变速器的结构存在改善的空间。
发明内容
本发明提供一种能够使变速器小型化的驱动装置。
第一发明为一种驱动装置，其是具备内燃机、第一旋转电机、第二旋转电机及变速器的车辆用驱动装置，其中，
所述变速器具备：
所述第一旋转电机的旋转轴即第一旋转电机轴；
所述第二旋转电机的旋转轴即第二旋转电机轴，其与所述第一旋转电机轴平行配置；
第一齿轮，其设置于所述第一旋转电机轴；以及
第二齿轮，其设置于所述第二旋转电机轴，
所述第一旋转电机的轴向上的宽度大于所述第二旋转电机的轴向上的宽度，
在配置有与所述第一齿轮啮合的第一旋转电机用齿轮的轴上设置的齿轮数少于在配置有与所述第二齿轮啮合的第二旋转电机用齿轮的轴上设置的齿轮数。
第二发明为一种驱动装置，其具备内燃机、第一旋转电机、第二旋转电机及变速器，其中，
所述变速器具备：
输入轴，其输入来自所述内燃机的驱动力；
差动装置，其连结于输出轴；
副轴，其将来自所述内燃机的驱动力及来自所述第二旋转电机的驱动力传递到所述差动装置；
所述第一旋转电机的旋转轴即第一旋转电机轴；以及
所述第二旋转电机的旋转轴即第二旋转电机轴，
所述输入轴、所述副轴、所述第一旋转电机轴、所述第二旋转电机轴及所述输出轴相互平行配置，
从轴向观察，在将所述第一旋转电机轴的轴心、所述第二旋转电机轴的轴心以及所述输出轴的轴心进行连结而形成的假想三角形中，配置有所述输入轴的轴心和所述副轴的轴心。
发明效果
根据本发明，能够使变速器小型化，从而能够使驱动装置小型化。
附图说明
图1是沿着轴向对本发明的一实施方式的驱动装置进行切断的驱动装置的剖视图。
图2是图1的驱动装置的框架图。
图3是表示从轴正交方向观察到图1的驱动装置时的各构成要素的位置关系的图。
附图标记说明：
10 驱动装置；
12 曲轴；
21 输入轴；
21c 输入轴心(输入轴的轴心)；
23 发电机轴(第一旋转电机轴)；
23c 发电机轴心(第一旋转电机轴的轴心)；
25 马达轴(第二旋转电机轴)；
25c 马达轴心(第二旋转电机轴的轴心)；
27 副轴；
27c 副轴心(副轴的轴心)；
32 发电机驱动齿轮(第一旋转电机用齿轮)；
34 低速侧驱动齿轮(第一驱动齿轮)；
36 高速侧驱动齿轮(第二驱动齿轮)；
40 发电机从动齿轮(第一齿轮)；
52 马达驱动齿轮(第二齿轮)；
60 低速侧从动齿轮(第一从动齿轮)；
62 输出齿轮；
64 高速侧从动齿轮(第二从动齿轮)；
66 马达从动齿轮(第二旋转电机用齿轮)；
D 差速机构(差动装置)；
CL1 第一离合器(第一断接机构)；
CL2 第二离合器(第二断接机构)；
ENG 发动机(内燃机)；
GEN 发电机(第一旋转电机)；
GLo 低速侧发动机用齿轮系(第一齿轮系)；
GHi 高速侧发动机用齿轮系(第二齿轮系)；
MOT 马达(第二旋转电机)；
T 变速器；
DS 车轴(输出轴)；
DSc 车轴心(输出轴的轴心)；
L1 发电机的轴向宽度(第一旋转电机的轴向宽度)；
L2 马达的轴向宽度(第二旋转电机的轴向宽度)；
D1 外径(第一旋转电机用齿轮的直径)；
Dc 外径(第一断接机构的直径)；
LN 假想线。
具体实施方式
以下，参照附图对本发明的车辆用驱动装置的一实施方式详细地进行说明。
[车辆用驱动装置]
如图1及图2所示，驱动装置10具备发动机ENG、发电机GEN、马达MOT、变速器T、以及收容这些发电机GEN、马达MOT和变速器T的壳体11。马达MOT及发电机GEN连接于未图示的蓄电池，能够进行来自蓄电池的电力供给和向蓄电池的能量再生。
[变速器]
在壳体11上沿轴向从发动机ENG侧设置有收容变速器T的变速器收容室11a、以及收容马达MOT和发电机GEN的马达收容室11b。
在变速器收容室11a上收容有差速机构D和相互平行配置的输入轴21、发电机轴23、马达轴25及副轴27。
输入轴21与发动机ENG的曲轴12同轴地并列配置。曲轴12的驱动力借助未图示的减震器而被传递到输入轴21。在输入轴21上设置有构成发电机用齿轮系Gg的发电机驱动齿轮32。
在输入轴21上相对于发电机驱动齿轮32在发动机侧隔着第一离合器CL1而设置有构成低速侧发动机用齿轮系GLo的低速侧驱动齿轮34，相对于发电机驱动齿轮32在与发动机侧相反的一侧(以下，称为马达侧)设置有构成高速侧发动机用齿轮系GHi的高速侧驱动齿轮36。第一离合器CL1是用于能够脱离地将输入轴21与低速侧驱动齿轮34进行连结的液压离合器，是所谓的多板式摩擦型离合器。
在发电机轴23上设置有与发电机驱动齿轮32啮合的发电机从动齿轮40。由输入轴21的发电机驱动齿轮32和发电机轴23的发电机从动齿轮40构成发电机用齿轮系Gg，该发电机用齿轮系Gg用于将输入轴21的旋转传递到发电机轴23。在发电机轴23的马达侧配置有发电机GEN。发电机GEN具备固定在发电机轴23上的转子R和固定在壳体11上并与转子R的外径侧对置配置的定子S而构成。
输入轴21的旋转借助发电机用齿轮系Gg而被传递到发电机轴23上，从而发电机轴23的旋转使发电机GEN的转子R旋转。由此，当发动机ENG驱动时，能够始终通过发电机GEN将从输入轴21传递的发动机ENG的驱动力转换成电力。
在马达轴25上，从马达侧依次设置有构成马达用齿轮系Gm的马达驱动齿轮52和油泵用齿轮54。在马达轴25上，在比马达驱动齿轮52靠马达侧的位置上配置有马达MOT。马达MOT具备固定在马达轴25上的转子R、以及固定在壳体11上并与转子R的外径侧对置配置的定子S而构成。油泵用齿轮54连结于未图示的机械式油泵。
在副轴27上，从发动机侧依次设置有与低速侧驱动齿轮34啮合的低速侧从动齿轮60、与差速机构D的齿圈70啮合的输出齿轮62、借助第二离合器CL2而与输入轴21的高速侧驱动齿轮36啮合的高速侧从动齿轮64、以及与马达轴25的马达驱动齿轮52啮合的马达从动齿轮66。第二离合器CL2是用于能够脱离地将副轴27与高速侧从动齿轮64进行连结的液压离合器，是所谓的多板式摩擦型离合器。
由输入轴21的低速侧驱动齿轮34和副轴27的低速侧从动齿轮60构成低速侧发动机用齿轮系GLo，该低速侧发动机用齿轮系GLo用于将输入轴21的旋转传递到副轴27。另外，由输入轴21的高速侧驱动齿轮36和副轴27的高速侧从动齿轮64构成用于将输入轴21的旋转传递到副轴27的高速侧发动机用齿轮系GHi。在此，包括低速侧驱动齿轮34和低速侧从动齿轮60的低速侧发动机用齿轮系GLo的减速比大于包括高速侧驱动齿轮36和高速侧从动齿轮64的高速侧发动机用齿轮系GHi的减速比。因此，在发动机ENG驱动时紧固连结第一离合器CL1并使第二离合器CL2分离，从而发动机ENG的驱动力借助低速侧发动机用齿轮系GLo而以大的减速比传递至副轴27。另一方面，当发动机ENG驱动时，使第一离合器CL1分离且紧固连结第二离合器CL2，从而发动机ENG的驱动力借助高速侧发动机用齿轮系GHi而以小的减速比传递至副轴27。需要说明的是，第一离合器CL1和第二离合器CL2不会同时紧固连结。
另外，由马达轴25的马达驱动齿轮52和副轴27的马达从动齿轮66构成马达轴25的马达用齿轮系Gm，该马达用齿轮系Gm用于将输入轴21的旋转传递到副轴27。若马达MOT的转子R旋转，则输入轴21的旋转借助马达用齿轮系Gm而传递到副轴27。由此，当马达MOT驱动时，马达MOT的驱动力借助马达用齿轮系Gm而传递至副轴27。
另外，由副轴27的输出齿轮62和差动机构D的齿圈70构成末端传动齿轮系Gf，该末端传动齿轮系Gf用于将副轴27的旋转传递至差动机构D。因此，借助马达用齿轮系Gm而输入到副轴27的马达MOT的驱动力、借助低速侧发动机用齿轮系GLo而输入到副轴27的发动机ENG的驱动力、以及借助高速侧发动机用齿轮系GHi而输入到副轴27的发动机ENG的驱动力借助末端传动齿轮系Gf而传递至差速机构D，并从差速机构D传递至车轴DS。
这样构成的本实施方式的驱动装置10具有将马达MOT的驱动力传递至车轴DS而使车辆行驶的动力传递路径、以及将发动机ENG的驱动力传递至车轴DS而使车辆行驶的低速侧和高速侧这两个动力传递路径。由此，搭载了驱动装置10的车辆能够进行所谓的发动机行驶、串联行驶以及并联行驶。
如图1及图2所示，发电机GEN的轴向宽度L1大于马达MOT的轴向宽度L2。发电机GEN的轴向宽度L1及马达MOT的轴向宽度L2为各转子R的轴向上的宽度，在转子R由层叠钢板构成的情况下为层叠钢板的层叠厚度，在转子R由烧结体构成的情况下为烧结体的厚度。
在此，在配置有与发电机轴23的发电机从动齿轮40啮合的发电机驱动齿轮32的轴即输入轴21上设置的齿轮数少于在配置有与马达驱动齿轮52啮合的马达从动齿轮66的轴即副轴27上设置的齿轮数。当更具体地进行说明时，设置在输入轴21上的齿轮数是低速侧驱动齿轮34、发电机驱动齿轮32及高速侧驱动齿轮36这三个，设置在副轴27上的齿轮数是马达从动齿轮66、高速侧从动齿轮64、输出齿轮62、以及低速侧从动齿轮60这四个。
这样，通过根据发电机GEN及马达MOT的轴向上的宽度L1、L2的差异来调节在周边的轴上设置的齿轮数，能够有效地活用轴向上的空间。即，在本实施方式中，通过在轴向上的宽度小的马达MOT的周边的空间配置更多的齿轮，能够有效地利用该空间。因此，能够使变速器T小型化，从而能够减小驱动装置10的轴向宽度。
另外，低速侧驱动齿轮34在设置于输入轴21的动力传递要素中，配置于最靠近发动机ENG的位置。将来自发动机ENG的驱动力传递到副轴27的低速侧驱动齿轮34在设置于输入轴21的动力传递要素中，配置于最靠近发动机ENG的位置，因此能够抑制在发动机ENG驱动时输入轴21的扭转。动力传递要素是有助于齿轮、离合器等动力传递的要素，且不包括轴承等支承部件。
同样，马达驱动齿轮52在设置于马达轴25的动力传递要素中，配置于最靠近马达MOT的位置。马达驱动齿轮52在设置于马达轴25的动力传递要素中，配置于最靠近马达MOT的位置，因此能够抑制在马达MOT驱动时马达轴25的扭转。
而且，马达从动齿轮66在设置于副轴27的动力传递要素中，配置于最靠近马达MOT的位置，且在轴向上与发电机GEN重叠。由此，能够在轴向上使驱动装置10更进一步小型化。
另外，在输入轴21上，从最靠近发动机ENG的一侧依次配置低速侧驱动齿轮34、第一离合器CL1、发电机驱动齿轮32、高速侧驱动齿轮36。发电机驱动齿轮32的外径D1大于第一离合器CL1的外径Dc，发电机驱动齿轮32及第一离合器CL1在轴向上局部重叠。发电机驱动齿轮32的外径D1是指发电机驱动齿轮32的齿顶圆直径，第一离合器CL1的外径Dc是指第一离合器CL1的最大外径。
当更具体地进行说明时，如图1所示，发电机驱动齿轮32被配置成在外周部设置有多个齿的齿轮圆盘部32a的发动机侧的侧表面上设置有向马达MOT侧凹陷的凹部32b，第一离合器CL1进入该凹部32b中。这样，发电机驱动齿轮32及第一离合器CL1在轴向上局部重叠，因此能够在轴向上使驱动装置10更进一步小型化。
需要说明的是，第二离合器CL2可以配置于输入轴21上，但是通过配置于副轴27上，能够有效地利用轴向宽度小的马达MOT的周边的空间，并且与配置于输入轴21上的情况相比，可以减少离合器容量。
以上，到此说明了本实施方式的变速器T在轴向上的小型化，但是，变速器T不仅实现轴向上的小型化，而且也实现从轴向观察时的外形(径向)的小型化。
当具体地进行说明时，如图3所示，从轴向方向观察变速器T时，在将作为发电机轴23的轴心的发电机轴心23c、作为马达轴25的轴心的马达轴心25c、以及作为车轴DS的轴心的车轴心DSc连结而形成的假想三角形TR中，配置有作为输入轴21的轴心的输入轴心21c和作为副轴27的轴心的副轴心27c。这样，在将发电机轴心23c、马达轴心25c、以及车轴心DSc连结而形成的假想三角形TR中，配置有输入轴心21c和副轴心27c，因此从轴向观察也能够使驱动装置10小型化。
另外，在本实施方式中，马达MOT配置在上方，发电机GEN及差速机构D配置在下方，发电机轴心23c和车轴心DSc配置在大致相同的高度。而且，马达轴心25c位于比发电机轴心23c靠车轴心DSc侧的位置，并且位于比车轴心DSc靠发电机轴心23c侧的位置。另外，马达MOT的下部位于比将发电机GEN的最上部与差速机构D的最上部进行连结的假想线LN靠下方的位置。发电机GEN的最上部是指发电机GEN的定子铁心的最上部，差速机构D的最上部是指齿圈70的最上部。
换言之，从轴向观察，马达轴心25c位于发电机轴心23c与车轴心DSc之间，且马达MOT在高度方向上与发电机GEN和差速机构D重叠。因此，能够更进一步减小驱动装置10的高度尺寸。
另外，如图3所示，从轴向观察，低速侧驱动齿轮34及发电机驱动齿轮32与发电机GEN局部重叠，且从轴向观察，低速侧从动齿轮60、马达从动齿轮66以及输出齿轮62与马达MOT局部重叠，而且，低速侧驱动齿轮34及发电机驱动齿轮32与发电机GEN和马达MOT局部重叠，因此从轴向观察，能够使驱动装置10更进一步小型化。
另外，本发明的车辆用驱动装置并不限定于上述实施方式，能够适当进行变形、改良等。
(1)一种驱动装置(驱动装置10)，其是具备内燃机(发动机ENG)、第一旋转电机(发电机GEN)、第二旋转电机(马达MOT)及变速器(变速器T)的车辆用驱动装置，其中，
所述变速器具备：
所述第一旋转电机的旋转轴即第一旋转电机轴(发电机轴23)；
所述第二旋转电机的旋转轴即第二旋转电机轴(马达轴25)，其与所述第一旋转电机轴平行配置；
第一齿轮(发电机从动齿轮40)，其设置于所述第一旋转电机轴；以及
第二齿轮(马达驱动齿轮52)，其设置于所述第二旋转电机轴，
所述第一旋转电机的轴向上的宽度(宽度L1)大于所述第二旋转电机的轴向上的宽度(宽度L2)，
在配置有与所述第一齿轮啮合的第一旋转电机用齿轮(发电机驱动齿轮32)的轴(输入轴21)上设置的齿轮数少于在配置有与所述第二齿轮啮合的第二旋转电机用齿轮(马达从动齿轮66)的轴(副轴27)上设置的齿轮数。
根据(1)，通过根据第一旋转电机及第二旋转电机的轴向上的宽度的差异来调节在周边的轴上设置的齿轮数，能够有效地活用轴向上的空间。因此，能够使变速器小型化，从而能够使驱动装置小型化。
(2)根据(1)所述的驱动装置，其中，
配置有所述第一旋转电机用齿轮的所述轴是输入来自所述内燃机的驱动力的输入轴(输入轴21)，
配置有所述第二旋转电机用齿轮的所述轴是设置有输出齿轮(输出齿轮62)的副轴(副轴27)，该输出齿轮(输出齿轮62)将来自所述内燃机的驱动力及来自所述第二旋转电机的驱动力传递到输出轴(车轴DS)，
在所述输入轴上设置有第一驱动齿轮(低速侧驱动齿轮34)，该第一驱动齿轮(低速侧驱动齿轮34)将来自所述内燃机的所述驱动力传递到所述副轴，
所述第一驱动齿轮在设置于所述输入轴的动力传递要素中，配置于最靠近所述内燃机的位置。
根据(2)，将来自内燃机的驱动力传递到副轴的第一驱动齿轮在设置于输入轴的动力传递要素中，配置于最靠近内燃机的位置，因此能够抑制输入轴的扭转。
(3)根据(2)所述的驱动装置，其中，
所述第二齿轮在设置于所述第二旋转电机轴的动力传递要素中，配置于最靠近所述第二旋转电机的位置。
根据(3)，第二齿轮在设置于第二旋转电机轴的动力传递要素中，配置于最靠近第二旋转电机的位置，因此能够抑制第二旋转电机轴的扭转。
(4)根据(2)或(3)所述的驱动装置，其中，
在所述输入轴上还设置有将来自所述内燃机的所述驱动力传递到所述副轴的第二驱动齿轮(高速侧驱动齿轮36)，
在所述副轴上还设置有由所述第二驱动齿轮驱动的第二从动齿轮(高速侧从动齿轮64)，
在所述输入轴上设置的所述齿轮是所述第一驱动齿轮、所述第一旋转电机用齿轮、以及所述第二驱动齿轮，
在所述副轴上设置的所述齿轮是所述第二旋转电机用齿轮、所述第二从动齿轮、所述输出齿轮、以及由所述第一驱动齿轮驱动的第一从动齿轮(低速侧从动齿轮60)。
根据(4)，在输入轴上设置的齿轮数是三个，在副轴上设置的齿轮数是四个，因此能够有效地利用轴向上的宽度小的第二旋转电机的周边的空间。
(5)根据(4)所述的驱动装置，其中，
包括所述第一驱动齿轮和所述第一从动齿轮的第一齿轮系(低速侧发动机用齿轮系GLo)的减速比大于包括所述第二驱动齿轮和所述第二从动齿轮的第二齿轮系(高速侧发动机用齿轮系GHi)的减速比。
根据(5)，通过第一齿轮系和第二齿轮系以不同的减速比将发动机的驱动力传递到副轴，来提高车辆行驶性。
(6)根据(4)或(5)所述的驱动装置，其中，
在所述输入轴上还设置有第一断接机构(第一离合器CL1)，该第一断接机构能够对从所述输入轴向所述第一驱动齿轮的动力传递路径进行连接及切断，并且，
在所述输入轴上从最靠近所述内燃机一侧依次配置所述第一驱动齿轮、所述第一断接机构、所述第一旋转电机用齿轮以及所述第二驱动齿轮，
所述第一旋转电机用齿轮的直径(外径D1)大于所述第一断接机构的直径(外径Dc)，
所述第一旋转电机用齿轮及所述第一断接机构在轴向上局部重叠。
根据(6)，第一旋转电机用齿轮及第一断接机构在轴向上局部重叠，因此能够在轴向上使驱动装置更进一步小型化。
(7)根据(4)至(6)中任一项所述的驱动装置，其中，
在所述副轴上还设置有第二断接机构(第二离合器CL2)，该第二断接机构能够对从所述第二从动齿轮向所述副轴的动力传递路径进行连接及切断。
根据(7)，第二断接机构是对从第二从动齿轮向副轴的动力传递路径进行连接及切断的机构，与对从输入轴向第二驱动齿轮的动力传递路径进行连接及切断的情况相比，可以减少离合器容量。
(8)根据(2)至(7)中任一项所述的驱动装置，其中，
所述第二旋转电机用齿轮在设置于所述副轴的动力传递要素中，配置于最靠近所述第二旋转电机的位置，且在所述轴向上与所述第一旋转电机重叠。
根据(8)，第二旋转电机用齿轮在设置于副轴的动力传递要素中，配置于最靠近第二旋转电机的位置，且在轴向上与第一旋转电机重叠，因此能够在轴向上使驱动装置更进一步小型化。
(9)一种驱动装置(驱动装置10)，其具备内燃机(发动机ENG)、第一旋转电机(发电机GEN)、第二旋转电机(马达MOT)及变速器(变速器T)，其中，
所述变速器具备：
输入轴(输入轴21)，其输入来自所述内燃机的驱动力；
差动装置(差速机构D)，其连结于输出轴(车轴DS)；
副轴(副轴27)，其将来自所述内燃机的驱动力及来自所述第二旋转电机的驱动力传递到所述差动装置；
所述第一旋转电机的旋转轴即第一旋转电机轴(发电机轴23)；以及
所述第二旋转电机的旋转轴即第二旋转电机轴(马达轴25)，
所述输入轴、所述副轴、所述第一旋转电机轴、所述第二旋转电机轴及所述输出轴相互平行配置，
从轴向观察，在将所述第一旋转电机轴的轴心(发电机轴心23c)、所述第二旋转电机轴的轴心(马达轴心25c)以及所述输出轴的轴心(车轴心DSc)进行连结而形成的假想三角形中，配置有所述输入轴的轴心(输入轴心21c)和所述副轴的轴心(副轴心27c)。
根据(9)，从轴向观察，在将第一旋转电机轴的轴心、第二旋转电机轴的轴心以及输出轴的轴心进行连结而形成的假想三角形中，配置有输入轴的轴心和副轴的轴心，因此能够使变速器小型化，从轴向观察能够使驱动装置小型化。
(10)根据(9)所述的驱动装置，其中，
从所述轴向观察时，
所述第二旋转电机的所述轴心位于比所述第一旋转电机的所述轴心靠所述输出轴的所述轴心侧的位置，并且位于比所述输出轴的所述轴心靠所述第一旋转电机的所述轴心侧的位置，
所述第二旋转电机的一部分位于比将所述第一旋转电机的最上部与所述差动装置的最上部进行连结的假想线(假想线LN)靠下方的位置。
根据(10)，从轴向观察，第二旋转电机的轴心位于第一旋转电机的轴心与输出轴的轴心之间，第二旋转电机在高度方向上与第一旋转电机及差动装置重叠，因此能够减小驱动装置的高度尺寸。
(11)根据(9)或(10)所述的驱动装置，其中，
所述输入轴具备：
第一驱动齿轮(低速侧驱动齿轮34)，其将来自所述内燃机的所述驱动力传递到所述副轴；以及
第一旋转电机用齿轮(发电机驱动齿轮32)，其设置于所述输入轴，且将来自所述内燃机的所述驱动力传递到所述第一旋转电机轴，
所述副轴具备：
第一从动齿轮(低速侧从动齿轮60)，其由所述第一驱动齿轮驱动；
第二旋转电机用齿轮(马达从动齿轮66)，其通过来自所述第二旋转电机的所述驱动力而被驱动；
输出齿轮(输出齿轮62)，其将来自所述内燃机的所述驱动力及来自所述第二旋转电机的所述驱动力传递到所述输出轴，
从轴向观察，所述第一驱动齿轮及所述第一旋转电机用齿轮与所述第一旋转电机局部重叠，
从所述轴向观察时，所述第一从动齿轮、所述第二旋转电机用齿轮以及所述输出齿轮与所述第二旋转电机局部重叠。
根据(11)，在输入轴上设置的第一驱动齿轮及第一旋转电机用齿轮与第一旋转电机局部重叠，并且在副轴上设置的第一从动齿轮、第二旋转电机用齿轮以及输出齿轮与第二旋转电机局部重叠，因此从轴向观察，能够使驱动装置更进一步小型化。
(12)根据(11)所述的驱动装置，其中，
从轴向观察，所述第一驱动齿轮及所述第一旋转电机用齿轮与所述第一旋转电机及所述第二旋转电机局部重叠。
根据(12)，在输入轴上设置的第一驱动齿轮及第一旋转电机用齿轮与第一旋转电机及第二旋转电机局部重叠，因此从轴向观察，能够使驱动装置更进一步小型化。

Claims (12)

1.一种驱动装置，其是具备内燃机、第一旋转电机、第二旋转电机及变速器的车辆用驱动装置，其中，
所述变速器具备：
所述第一旋转电机的旋转轴即第一旋转电机轴；
所述第二旋转电机的旋转轴即第二旋转电机轴，其与所述第一旋转电机轴平行配置；
第一齿轮，其设置于所述第一旋转电机轴；以及
第二齿轮，其设置于所述第二旋转电机轴，
所述第一旋转电机的轴向上的宽度大于所述第二旋转电机的轴向上的宽度，
在配置有与所述第一齿轮啮合的第一旋转电机用齿轮的轴上设置的齿轮数少于在配置有与所述第二齿轮啮合的第二旋转电机用齿轮的轴上设置的齿轮数。
2.根据权利要求1所述的驱动装置，其中，
配置有所述第一旋转电机用齿轮的所述轴是输入来自所述内燃机的驱动力的输入轴，
配置有所述第二旋转电机用齿轮的所述轴是设置有输出齿轮的副轴，该输出齿轮将来自所述内燃机的驱动力及来自所述第二旋转电机的驱动力传递到输出轴，
在所述输入轴上设置有第一驱动齿轮，该第一驱动齿轮将来自所述内燃机的所述驱动力传递到所述副轴，
所述第一驱动齿轮在设置于所述输入轴的动力传递要素中，配置于最靠近所述内燃机的位置。
3.根据权利要求2所述的驱动装置，其中，
所述第二齿轮在设置于所述第二旋转电机轴的动力传递要素中，配置于最靠近所述第二旋转电机的位置。
4.根据权利要求2或3所述的驱动装置，其中，
在所述输入轴上还设置有将来自所述内燃机的所述驱动力传递到所述副轴的第二驱动齿轮，
在所述副轴上还设置有由所述第二驱动齿轮驱动的第二从动齿轮，
在所述输入轴上设置的所述齿轮是所述第一驱动齿轮、所述第一旋转电机用齿轮、以及所述第二驱动齿轮，
在所述副轴上设置的所述齿轮是所述第二旋转电机用齿轮、所述第二从动齿轮、所述输出齿轮、以及由所述第一驱动齿轮驱动的第一从动齿轮。
5.根据权利要求4所述的驱动装置，其中，
包括所述第一驱动齿轮和所述第一从动齿轮的第一齿轮系的减速比大于包括所述第二驱动齿轮和所述第二从动齿轮的第二齿轮系的减速比。
6.根据权利要求4或5所述的驱动装置，其中，
在所述输入轴上还设置有第一断接机构，该第一断接机构能够对从所述输入轴向所述第一驱动齿轮的动力传递路径进行连接及切断，并且，
在所述输入轴上从最靠近所述内燃机一侧依次配置所述第一驱动齿轮、所述第一断接机构、所述第一旋转电机用齿轮以及所述第二驱动齿轮，
所述第一旋转电机用齿轮的直径大于所述第一断接机构的直径，
所述第一旋转电机用齿轮及所述第一断接机构在轴向上局部重叠。
7.根据权利要求4至6中任一项所述的驱动装置，其中，
在所述副轴上还设置有第二断接机构，该第二断接机构能够对从所述第二从动齿轮向所述副轴的动力传递路径进行连接及切断。
8.根据权利要求2至7中任一项所述的驱动装置，其中，
所述第二旋转电机用齿轮在设置于所述副轴的动力传递要素中，配置于最靠近所述第二旋转电机的位置，且在所述轴向上与所述第一旋转电机重叠。
9.一种驱动装置，其具备内燃机、第一旋转电机、第二旋转电机及变速器，其中，
所述变速器具备：
输入轴，其输入来自所述内燃机的驱动力；
差动装置，其连结于输出轴；
副轴，其将来自所述内燃机的驱动力及来自所述第二旋转电机的驱动力传递到所述差动装置；
所述第一旋转电机的旋转轴即第一旋转电机轴；以及
所述第二旋转电机的旋转轴即第二旋转电机轴，
所述输入轴、所述副轴、所述第一旋转电机轴、所述第二旋转电机轴及所述输出轴相互平行配置，
从轴向观察，在将所述第一旋转电机轴的轴心、所述第二旋转电机轴的轴心以及所述输出轴的轴心进行连结而形成的假想三角形中，配置有所述输入轴的轴心和所述副轴的轴心。
10.根据权利要求9所述的驱动装置，其中，
从所述轴向观察时，
所述第二旋转电机的所述轴心位于比所述第一旋转电机的所述轴心靠所述输出轴的所述轴心侧的位置，并且位于比所述输出轴的所述轴心靠所述第一旋转电机的所述轴心侧的位置，
所述第二旋转电机的一部分位于比将所述第一旋转电机的最上部与所述差动装置的最上部进行连结的假想线靠下方的位置。
11.根据权利要求9或10所述的驱动装置，其中，
所述输入轴具备：
第一驱动齿轮，其将来自所述内燃机的所述驱动力传递到所述副轴；以及
第一旋转电机用齿轮，其设置于所述输入轴，且将来自所述内燃机的所述驱动力传递到所述第一旋转电机轴，
所述副轴具备：
第一从动齿轮，其由所述第一驱动齿轮驱动；
第二旋转电机用齿轮，其通过来自所述第二旋转电机的所述驱动力而被驱动；
输出齿轮，其将来自所述内燃机的所述驱动力及来自所述第二旋转电机的所述驱动力传递到所述输出轴，
从轴向观察，所述第一驱动齿轮及所述第一旋转电机用齿轮与所述第一旋转电机局部重叠，
从所述轴向观察时，所述第一从动齿轮、所述第二旋转电机用齿轮以及所述输出齿轮与所述第二旋转电机局部重叠。
12.根据权利要求11所述的驱动装置，其中，
从轴向观察，所述第一驱动齿轮及所述第一旋转电机用齿轮与所述第一旋转电机及所述第二旋转电机局部重叠。
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