CN111347866B - 混合动力车辆用驱动装置 - Google Patents

混合动力车辆用驱动装置 Download PDF

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CN111347866B
CN111347866B CN201911319641.2A CN201911319641A CN111347866B CN 111347866 B CN111347866 B CN 111347866B CN 201911319641 A CN201911319641 A CN 201911319641A CN 111347866 B CN111347866 B CN 111347866B
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gear
motor
housing
disposed
case
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CN111347866A (zh
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宫崎将英
北冈圭史
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Suzuki Motor Corp
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Suzuki Motor Corp
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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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • 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
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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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    • 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
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    • 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
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F16H2057/02047—Automatic transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
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Abstract

提供一种能抑制变速器的振动的混合动力车辆用驱动装置。电动机(32)配置于变速机构(61)的上方，变速器壳体(5)具有从发动机(8)的一侧起依次配置的右壳体(6)、左壳体(7)以及罩构件(27)，由右壳体(6)、左壳体(7)以及罩构件(27)形成了收纳变速机构(61)的变速机构收纳部(62)。另外，左壳体(7)具有：左壳体主体部(7G)，其形成变速机构收纳部(62)的一部分；以及鼓出部(7H)，其从左壳体主体部(7G)向上方鼓出，装配电动机(32)的一端侧。并且，在左壳体主体部(7G)的上表面中的鼓出部(7H)的前方形成有装配安装装置(70)的安装件装配部(31)。

Description

混合动力车辆用驱动装置
技术领域
本发明涉及混合动力车辆用驱动装置。
背景技术
作为以往的混合动力车辆用动力传递装置，已知专利文献1所记载的装置。专利文献1所记载的混合动力车辆用动力传递装置具备装配在被装配于发动机的变速器外壳的发动机侧并且经由紧固点连结到发动机的电动机，在从发动机的曲轴方向观看时，将电动机的重心和紧固点相连的线与在没有紧固点时因发动机的振动而电动机发生振动的方向上延伸的线交叉。
由此，专利文献1所记载的混合动力车辆用动力传递装置在电动机振动时，能将没有紧固点时的直线运动转换为以紧固点为中心的摆动运动，通过将从电动机经由紧固点输入到发动机侧的力分散，从而能抑制动力装置整体的振动。
现有技术文献
专利文献
专利文献1：特许5971351号公报
发明内容
发明要解决的问题
然而，在以往的混合动力车辆用动力传递装置中，在与将变速器外壳支撑于车体的安装件分离的位置配置有重量大的电动机，因此存在成为了难以抑制振动的布局的问题。
本发明是着眼于上述这种情况而完成的，其目的在于提供一种能抑制变速器的振动的混合动力车辆用驱动装置。
用于解决问题的方案
本发明的混合动力车辆用驱动装置具备：变速机构，其改变发动机传来的驱动力的转速；变速器壳体，其收纳上述变速机构；以及电动机，其将驱动力传递到上述变速机构，上述变速器壳体通过安装装置装配到车体，上述混合动力车辆用驱动装置的特征在于，上述电动机配置于上述变速机构的上方，上述变速器壳体具有从上述发动机的一侧起依次配置的右壳体、左壳体以及罩构件，由上述右壳体、上述左壳体以及上述罩构件形成收纳上述变速机构的变速机构收纳部，上述左壳体具有：左壳体主体部，其形成上述变速机构收纳部的一部分；以及鼓出部，其从上述左壳体主体部向上方鼓出，装配上述电动机的一端侧，在上述左壳体主体部的上表面中的上述鼓出部的前方形成装配上述安装装置的安装件装配部。
发明效果
这样，根据上述的本发明，能抑制变速器的振动。
附图说明
图1是本发明的一实施例的混合动力车辆用驱动装置的左视图。
图2是本发明的一实施例的混合动力车辆用驱动装置的俯视图。
图3是本发明的一实施例的混合动力车辆用驱动装置的框架图。
图4是图2的IV-IV方向向视截面图。
图5是本发明的一实施例的混合动力车辆用驱动装置的装有安装构件的状态的左视图。
图6是本发明的一实施例的混合动力车辆用驱动装置的装有安装构件的状态的俯视图。
附图标记说明
1...混合动力车辆、4...驱动装置(混合动力车辆用驱动装置)、5...变速器壳体、6...右壳体、7...左壳体、7G...左壳体主体部、7H...鼓出部、8...发动机、27...罩构件、30...底板装配部、31...安装件装配部、32...电动机、32B...电动机轴、41...换挡单元、41A...底板、41B...阀单元、61...变速机构、62...变速机构收纳部、70...安装装置、73...弹性构件。
具体实施方式
本发明的一实施方式的混合动力车辆用驱动装置具备：变速机构，其改变发动机传来的驱动力的转速；变速器壳体，其收纳变速机构；以及电动机，其将驱动力传递到变速机构，变速器壳体通过安装装置装配到车体，混合动力车辆用驱动装置的特征在于，电动机配置于变速机构的上方，变速器壳体具有从发动机的一侧起依次配置的右壳体、左壳体以及罩构件，由右壳体、左壳体以及罩构件形成收纳变速机构的变速机构收纳部，左壳体具有：左壳体主体部，其形成变速机构收纳部的一部分；以及鼓出部，其从左壳体主体部向上方鼓出，装配电动机的一端侧，在左壳体主体部的上表面中的鼓出部的前方形成有装配安装装置的安装件装配部。由此，本发明的一实施方式的混合动力车辆用驱动装置能抑制变速器的振动。
[实施例]
以下，使用附图说明本发明的一实施例的混合动力车辆用驱动装置。
图1至图6是表示本发明的一实施例的混合动力车辆用驱动装置的图。
在图1至图6中，上下前后左右方向设为设置于车辆的状态的混合动力车辆用驱动装置的上下前后左右方向，与前后方向正交的方向是左右方向，混合动力车辆用驱动装置的高度方向是上下方向。
首先，说明构成。在图1中，混合动力车辆(以下简称为车辆)1具备车体2，车体2由前围板3隔成前侧的发动机室2A和后侧的车厢2B。在发动机室2A中设置有驱动装置4，驱动装置4具有前进6挡、后退1挡的变速挡。驱动装置4构成本发明的混合动力车辆用驱动装置。
在图2中，在驱动装置4连结有发动机8。驱动装置4具备变速器壳体5，变速器壳体5从发动机8侧起按顺序具有右壳体6、左壳体7以及罩构件27。
右壳体6连结着发动机8。发动机8具有曲轴9(参照图3)，曲轴9设置为在车辆1的宽度方向上延伸。即，本实施例的发动机8由横置发动机构成，本实施例的车辆1是前置发动机前轮驱动(FF)车辆。
左壳体7连结到与发动机8相反的一侧即右壳体6的左侧。在右壳体6的左侧的外周缘形成有凸缘部6F(参照图2)。在图1、图2中，在左壳体7的右侧的外周缘形成有凸缘部7F。
如图1所示，在凸缘部7F设置有供螺栓23A插入的凸台部7f，凸台部7f沿着凸缘部7F设置有多个。
在凸缘部6F形成有与凸台部7f匹配的多个未图示的凸台部，通过以螺栓23A(参照图1)将凸缘部6F的凸台部和凸缘部7F的凸台部7f紧固，从而右壳体6与左壳体7被紧固而一体化。
在右壳体6收纳有离合器10(参照图3)。在左壳体7收纳有图3所示的输入轴11、前进用输出轴12、后退用输出轴13、最终减速机构14以及差动装置15。
输入轴11、前进用输出轴12以及后退用输出轴13沿着车辆的左右方向平行地设置。本实施例的前进用输出轴12构成本发明的输出轴。变速机构61从车辆的前方起按顺序配置有输入轴11、前进用输出轴12、差动装置15。
在图3中，输入轴11通过离合器10连结到发动机8，通过离合器10被传递发动机8的动力。在图3中，输入轴11具有1挡用的输入齿轮16A、2挡用的输入齿轮16B、3挡用的输入齿轮16C、4挡用的输入齿轮16D、5挡用的输入齿轮16E以及6挡用的输入齿轮16F。
输入齿轮16A、16B固定到输入轴11，与输入轴11一体旋转。输入齿轮16C至输入齿轮16F设置成与输入轴11相对旋转自如。
前进用输出轴12具有1挡用的输出齿轮17A、2挡用的输出齿轮17B、3挡用的输出齿轮17C、4挡用的输出齿轮17D、5挡用的输出齿轮17E、6挡用的输出齿轮17F以及前进用的末级驱动齿轮17G。
输出齿轮17A至输出齿轮17F是与构成同一变速挡的输入齿轮16A至输入齿轮16F啮合的。例如，4挡用的输出齿轮17D与4挡用的输入齿轮16D啮合。
输出齿轮17A、17B设置成与前进用输出轴12相对旋转自如。输出齿轮17C至输出齿轮17F和末级驱动齿轮17G固定到前进用输出轴12，与前进用输出轴12一体旋转。
在1挡中，发动机8的动力从输入轴11通过输入齿轮16A和输出齿轮17A传递到前进用输出轴12。在2挡中，发动机8的动力从输入轴11通过输入齿轮16B和输出齿轮17B传递到前进用输出轴12。
在输出齿轮17A与输出齿轮17B之间，在前进用输出轴12上设置有第1同步装置18。
当通过换挡操作切换到1挡时，第1同步装置18将1挡的输出齿轮17A连结到前进用输出轴12。当通过换挡操作切换到2挡时，第1同步装置18将2挡用的输出齿轮17B连结到前进用输出轴12。这样，当通过换挡操作切换到1挡或2挡时，输出齿轮17A或者输出齿轮17B与前进用输出轴12一体旋转。
在输入齿轮16C与输入齿轮16D之间，在输入轴11上设置有第2同步装置19。
当通过换挡操作切换到3挡时，第2同步装置19将输入齿轮16C连结到输入轴11。当通过换挡操作切换到4挡时，第2同步装置19将输入齿轮16D连结到输入轴11。这样，当通过换挡操作切换到3挡或者4挡时，输入齿轮16C或者输入齿轮16D与输入轴11一体旋转。
在3挡中，发动机8的动力从输入轴11通过输入齿轮16C和输出齿轮17C传递到前进用输出轴12。在4挡中，发动机8的动力从输入轴11通过输入齿轮16D和输出齿轮17D传递到前进用输出轴12。
这样，设置于输入轴11上的第2同步装置19从包括输入齿轮16C和输出齿轮17C的1个变速齿轮组以及包括输入齿轮16D和输出齿轮17D的1个变速齿轮组之中选择1个变速齿轮组，使动力从输入轴11通过所选择的变速齿轮组传递到前进用输出轴12。
在输入齿轮16E与输入齿轮16F之间，在输入轴11上设置有第3同步装置20。
当通过换挡操作切换到5挡时，第3同步装置20将输入齿轮16E连结到输入轴11。当通过换挡操作切换到6挡时，第3同步装置20将输入齿轮16F连结到输入轴11。这样，当通过换挡操作切换到5挡或6挡时，输入齿轮16E或者输入齿轮16F与输入轴11一体旋转。
在5挡中，发动机8的动力从输入轴11通过输入齿轮16E和输出齿轮17E传递到前进用输出轴12。在6挡中，发动机8的动力从输入轴11通过输入齿轮16F和输出齿轮17F传递到前进用输出轴12。
这样，设置于输入轴11上的第3同步装置20从包括输入齿轮16E和输出齿轮17E的1个变速齿轮组以及包括输入齿轮16F和输出齿轮17F的1个变速齿轮组之中选择1个变速齿轮组，使动力从输入轴11通过所选择的变速齿轮组传递到前进用输出轴12。
包括输入齿轮16D和输出齿轮17D的变速齿轮组与包括输入齿轮16E和输出齿轮17E的变速齿轮组在输入轴11的轴向上相邻地设置于第2同步装置19与第3同步装置20之间。
在后退用输出轴13上设置有倒挡齿轮22A和后退用的末级驱动齿轮22B。倒挡齿轮22A设置成与后退用输出轴13相对旋转自如，且是与输出齿轮17A啮合的。末级驱动齿轮22B固定到后退用输出轴13，与后退用输出轴13一体旋转。
在后退用输出轴13上设置有第4同步装置21。当通过换挡操作切换到后退挡时，第4同步装置21将倒挡齿轮22A连结到后退用输出轴13。由此，倒挡齿轮22A与后退用输出轴13一体旋转。
在后退挡中，发动机8的动力从输入轴11通过输入齿轮16A、与前进用输出轴12相对旋转的输出齿轮17A、以及倒挡齿轮22A传递到后退用输出轴13。
前进用的末级驱动齿轮17G和后退用的末级驱动齿轮22B是与差动装置15的末级从动齿轮15A啮合的。由此，前进用输出轴12的动力和后退用输出轴13的动力通过前进用的末级驱动齿轮17G或者后退用的末级驱动齿轮22B传递到差动装置15。
差动装置15具有：末级从动齿轮15A；差速器壳体15B，在其外周部装配有末级从动齿轮15A；以及差动机构15C，其内置于差速器壳体15B。
在差速器壳体15B的左端部设置有筒状部15c(参照图4)，在差速器壳体15B的右端部设置有与筒状部15c同样的未图示的筒状部。如图3所示，在筒状部15c和未图示的筒状部插通有右驱动轴24R和左驱动轴24L各自的一端部。
左右驱动轴24L、24R的一端部连结到差动机构15C，左右驱动轴24L、24R的另一端部分别连结到未图示的左右的驱动轮。差动装置15将发动机8的动力通过差动机构15C分配到左右驱动轴24L、24R后传递到驱动轮。末级从动齿轮15A以旋转轴心15a为中心旋转。
本实施例的输入轴11、前进用输出轴12、输入齿轮16A至输入齿轮16F以及输出齿轮17A至输出齿轮17F构成变速机构61。
最终减速机构14包括前进用的末级驱动齿轮17G和末级从动齿轮15A。
在图1、图2中，电动机32具有：电动机壳体32A；以及电动机轴32B，其支撑于电动机壳体32A且旋转自如。在电动机壳体32A的内部收纳有均未图示的转子和缠绕有线圈的定子，电动机轴32B与转子设置为一体。
在电动机32中，通过对线圈提供三相交流电，从而产生在周向上旋转的旋转磁场。定子通过使所产生的磁通与转子交链，从而驱动与电动机轴32B为一体的转子旋转。
在图1、图4中，在变速器壳体5设置有减速机构收纳部25，减速机构收纳部25由后述的左壳体7的鼓出部7H和罩构件27形成。在减速机构收纳部25的内部收纳有减速机构33(参照图4)。
在图3、图4中，减速机构33具备：第1驱动齿轮34，其设置于电动机32的电动机轴32B；第1中间轴35；第2中间轴36；以及4挡用的输出齿轮17D，其设置于前进用输出轴12。
在第1中间轴35上设置有第1从动齿轮35A和第2驱动齿轮35B。在第2中间轴36上设置有第2从动齿轮36A和第3驱动齿轮36B。
第1从动齿轮35A形成为直径比第1驱动齿轮34的直径大，且是与第1驱动齿轮34啮合的。
第2驱动齿轮35B形成为直径比第1从动齿轮35A和第2从动齿轮36A的直径小，与第2从动齿轮36A啮合。
第3驱动齿轮36B形成为直径与第2从动齿轮36A的直径相同，并且形成为直径比4挡用的输出齿轮17D的直径大，第3驱动齿轮36B是与4挡用的输出齿轮17D啮合的。此外，在相互啮合的齿轮对中，大直径的齿轮的齿数形成为多于小直径的齿轮的齿数。
第1驱动齿轮34和第1从动齿轮35A构成连结电动机轴32B和第1中间轴35的第1减速齿轮对37。第2驱动齿轮35B和第2从动齿轮36A连结第1中间轴35和第2中间轴36，构成第2减速齿轮对38。第3驱动齿轮36B和输出齿轮17D连结第2中间轴36和前进用输出轴12，构成第3减速齿轮对39。
这样，减速机构33在从电动机32向前进用输出轴12传递动力的动力传递路径上具有第1中间轴35和第2中间轴36。并且，减速机构33通过以成为任意的减速比的方式设定驱动齿轮34、35B、36B以及从动齿轮35A、36A的直径和齿数，从而将电动机32的动力进行减速后传递到前进用输出轴12。
左壳体7在其左端部具有向上方鼓出的鼓出部7H。通过鼓出部7H，左壳体7的左端部的开口向上方扩大。鼓出部7H是构成减速机构收纳部25的壳体部分，并且在其左侧配置减速机构33。
在图1、图2中，罩构件27通过螺栓23B(参照图1)接合(紧固)到左壳体7的左端部，将还包含鼓出部7H的部分在内的左壳体7的左端部的开口封闭。即，由鼓出部7H和配置于鼓出部7H的左侧的罩构件27从左右形成成为减速机构33的收纳空间的减速机构收纳部25。
在图1、图2中，在鼓出部7H的上端部，在其发动机8侧(右侧)设置有电动机装配部29C。电动机装配部29C形成为圆形的凸缘状，直径扩大至与电动机32的外径即电动机壳体32A的外径相等的外径。
在电动机装配部29C的外周部设置有多个凸台部29m，凸台部29m沿着电动机装配部29C的外周部配置。通过使螺栓23C插通于电动机装配部29C，将螺栓23C拧紧固定到形成于电动机壳体32A的未图示的螺纹孔，从而电动机32被紧固到电动机装配部29C。
电动机装配部29C具有朝向右方的电动机装配面，装配于电动机装配部29C的电动机32配置为电动机轴32B沿着车辆的左右方向。并且，电动机32配置为在露出到变速器壳体5的外部的上方的状态下从形成于左壳体7的左侧部分的鼓出部7H向右方延伸。
另外，如图4所示，在车辆的前后方向上，电动机32的电动机轴32B的中心配置于输入轴11与末级从动齿轮的旋转轴心15a之间。更详细地，电动机32的电动机轴32B的中心在车辆的前后方向上配置于前进用输出轴12与末级从动齿轮的旋转轴心15a之间。
在图1、图2中，在车辆的前后方向上比电动机32靠前侧的左壳体7的上部设置有换挡单元41。在俯视车辆1时，电动机32和换挡单元41以靠近后述的安装件装配部31的方式与安装件装配部31接近配置。
即，电动机32和换挡单元41设置于安装件装配部31的前后。详细地，安装件装配部31和鼓出部7H在左壳体7的左端部前后排列形成，换挡单元41配置为从安装件装配部31的右侧延续到前方，向车辆的前方延伸。
换挡单元41为了进行驱动装置4的换挡操作和离合器操作而被驱动。在此，换挡操作是指对驱动装置4的变速挡进行切换的操作，离合器操作是指将驱动装置4的离合器10卡合(连接)或者释放(切断)的操作。
换挡单元41是油压装置，并且是如下装置：具有油泵、驱动油泵的马达、阀单元41B、蓄压器、工作油的储存罐等，并具有将它们组装起来而一体化的底板41A，不仅部件个数多且比较有重量。
特别是，阀单元41B装配有许多个电磁阀，并且在其内部具有复杂的油路或液压缸等油压工作机构，因此成为了有重量的部件。另外，底板41A也装配有换挡单元41的许多个构成部件，是将这许多个构成部件装配到左壳体7的比较厚的金属制的板，成为了有重量的部件。
在图4中，在左壳体7收纳有换挡选择轴42。换挡选择轴42相对于左壳体7在轴心方向上移动自如并且旋转自如，由配置于其上方的换挡单元41操作。
即，换挡选择轴42由内置于阀单元41B的液压缸等油压工作机构操作，在换挡选择轴42的轴向的上方配置有阀单元41B。
在由驾驶员操作的未图示的换挡杆被切换为前进挡位的状态或者被切换为后退挡位的状态中，换挡单元41例如基于预先设定了节气门开度和车速作为参数的变速映射来操作换挡选择轴42。
换挡选择轴42以其轴沿着上下方向的方式配置于输入轴的前侧，通过包括均未图示的变速叉(shift yoke)、换挡轴以及换挡拨叉(shift fork)等的变速操作机构操作第1同步装置18至第4同步装置21来进行变速挡的控制。此外，换挡单元41通过油压机构或马达机构等操作换挡选择轴42，但驱动方式不限于上述油压机构或马达机构等。
如图1、图2所示，在变速器壳体5设置有前支架46A和后支架46B。前支架46A连结电动机32和右壳体6，将电动机32支撑于右壳体6。
后支架46B连结电动机32和右壳体6，将电动机32支撑于右壳体6。这样，电动机32配置于变速器壳体5的外部，其轴向上的一端部(左侧端部)装配于电动机装配部29C，轴向上的相反侧(另一端部、右侧端部)连结到右壳体6。
在电动机32的后方设置有连接器32C，在连接器32C连接有提供用于驱动电动机32的电力的电源线(省略图示)。
如图1、图2所示，在本实施例中，电动机32具有：受电部32D，其从电动机32的另一端侧(右侧端部)向径向外侧突出，接受电动机32所使用的电力；以及连接器32C，其在受电部32D的左侧面(成为电动机32的一端侧的面)上设置为朝向电动机32的一端侧。
由于连接器32C设置为朝向电动机32的一端侧，因此装卸方向成为沿着电动机轴32B的方向，能使电源线沿着电动机32布线。
在左壳体7的上部设置有安装件装配部31。安装件装配部31在左壳体7的左侧端部形成于输入轴11的上方，具有向上方竖立设置的多个凸台部31A。在凸台部31A紧固有固定到车体2的未图示的安装装置70。由此，驱动装置4通过安装装置70弹性地支撑于车体2。
电动机32在车辆的前后方向上在比安装件装配部31靠后侧的位置设定于左壳体7的上部。发动机8通过用于发动机的未图示的安装装置弹性地支撑于车体2。
如图4所示，在本实施例中，电动机32配置于变速机构61的上方。另外，如图2所示，变速器壳体5具有从发动机8的一侧起依次配置的右壳体6、左壳体7以及罩构件27。另外，由右壳体6、左壳体7以及罩构件27形成了收纳变速机构61的变速机构收纳部62(参照图4)。
如图1、图2、图4所示，左壳体7具有：左壳体主体部7G，其形成变速机构收纳部62的一部分；以及鼓出部7H，其从左壳体主体部7G向上方鼓出，装配电动机32的一端侧。另外，左壳体7在左壳体主体部7G的上表面中的鼓出部7H的前方形成有装配安装装置70的安装件装配部31。
在本实施例中，如图5所示，安装装置70具有驱动装置侧支架71、弹性构件73、车体2侧支架72，驱动装置侧支架71与车体2侧支架72通过弹性构件73连结。
驱动装置侧支架71具有装配到左壳体7的安装件装配部31的固定部，从固定部向上方延伸而装配到弹性构件73的内侧。车体2侧支架72是包围弹性构件73的周围、将弹性构件73装配到车体2的支架。
另外，如图5所示，在从左侧观看时，电动机32的输出轴(电动机轴32B)的轴心在上下方向上配置于安装件装配部31与弹性构件73之间。详细地说，电动机32的输出轴(电动机轴32B)的轴心在从轴向观看时，配置于比安装件装配部31靠上侧且比驱动装置侧支架71与弹性构件73的连结部位低的位置。
另外，如图4所示，在车辆的前后方向上，电动机32的电动机轴32B的中心配置于输入轴11与末级从动齿轮的旋转轴心15a之间。更详细地，电动机32的电动机轴32B的中心在车辆的前后方向上配置在前进用输出轴12与末级从动齿轮的旋转轴心15a之间。
在本实施例中，具备自动进行变速机构61的变速操作的换挡单元41，该换挡单元41在车辆前后方向上相对于安装件装配部31配置于与电动机32相反的一侧。
在本实施例中，如图5、图6所示，换挡单元41具有底板41A，在底板41A至少装配有阀单元41B，该阀单元41B通过油压使变速机构61动作。
左壳体7具有装配底板41A的底板装配部30，该底板装配部30配置于左壳体7的左侧端部的上部中的、安装件装配部31的前侧和安装件装配部31的左侧。装配底板41A的底板装配部30的装配面在上下方向上配置于比安装件装配部31的装配面(装配驱动装置侧支架71的装配面)靠下方的位置。
另外，如图5所示，在从左侧观看时，在安装件装配部31与弹性构件73之间配置有阀单元41B的大部分。详细地说，阀单元41B的大部分在从轴向观看时，配置于比安装件装配部31靠上侧且比驱动装置侧支架71与弹性构件73的连结部位低的位置。
另外，如图6所示，在车辆的前后方向上，阀单元41B在整个换挡单元41中配置于后侧，在车辆的左右方向上，配置于与电动机32相同的位置。
接下来，说明作用。
当车辆1前进时以发动机行驶的情况下，发动机8的动力从输入轴11通过使规定的变速挡成立的输入齿轮16A至输入齿轮16F中的任意一者传递到输出齿轮17A至输出齿轮17F中的任意一者。
由此，动力从前进用输出轴12的末级驱动齿轮17G传递到末级从动齿轮15A，发动机8的动力通过差动装置15的差动机构15C分配到左右的驱动轴24L、24R后传递到驱动轮，车辆1进行前进行驶。
另一方面，在车辆1前进时使电动机32的驱动力发挥作用时，电动机32的动力从电动机轴32B通过第1驱动齿轮34传递到第1从动齿轮35A。
接下来，电动机32的动力通过第2驱动齿轮35B、第2从动齿轮36A以及第3驱动齿轮36B传递到4挡用的输出齿轮17D。
由于减速机构33是以成为任意的减速比的方式设定驱动齿轮34、35B、36B以及从动齿轮35A、36A的直径和齿数，因此电动机32的动力被减速后传递到前进用输出轴12。
由此，动力从前进用输出轴12的末级驱动齿轮17G传递到末级从动齿轮15A，车辆1进行前进行驶。
如以上说明的，根据本实施例的驱动装置4，电动机32配置于变速机构61的上方，变速器壳体5具有从发动机8的一侧起依次配置的右壳体6、左壳体7以及罩构件27，由右壳体6、左壳体7以及罩构件27形成了收纳变速机构61的变速机构收纳部62。
另外，左壳体7具有：左壳体主体部7G，其形成变速机构收纳部62的一部分；以及鼓出部7H，其从左壳体主体部7G向上方鼓出，装配有电动机32的一端侧。并且，在左壳体主体部7G的上表面中的鼓出部7H的前方，形成有装配安装装置70的安装件装配部31。
由此，能使安装件装配部31承受重量大的电动机32的载荷，能抑制变速器壳体5的振动，因此能提高车辆的商品性。其结果是，能抑制变速器的振动。
特别是，在本实施例中，电动机32配置于变速器壳体5(左壳体7)的上方，如图5所示，能使电动机32配置为比变速机构61更接近驱动装置侧支架71与弹性构件73的连结部位。
根据本实施例的驱动装置4，安装装置70在安装件装配部31的上方具有弹性构件73，在上下方向上，电动机32的输出轴(电动机轴32B)的轴心配置在安装件装配部31与弹性构件73之间。
由此，由于在将变速器壳体5弹性支撑于车体2的弹性构件73的下侧附近配置电动机32，因此能将作为重量物的电动机32配置于作为变速器壳体5的摆动中心的弹性构件73的附近，能有效地抑制变速器壳体5的振动。
特别是，即使是将作为重量物的电动机32以向变速器壳体5的外部突出的方式装配的驱动装置4，也能抑制振动而稳定地通过安装装置70支撑驱动装置4。
根据本实施例的驱动装置4，具备自动进行变速机构61的变速的换挡单元41，换挡单元41在车辆前后方向上相对于安装件装配部31配置于与电动机32相反的一侧。
由此，作为重量物的换挡单元41与电动机32被分配到安装件装配部31的前后来配置，因此能取得安装件装配部31的前后重量的平衡，能有效地抑制振动。
根据本实施例的驱动装置4，换挡单元41具有底板41A，在底板41A至少装配有阀单元41B，该阀单元41B通过油压使变速机构61动作，左壳体7具有装配底板41A的底板装配部30。
另外，底板装配部30在上下方向上配置于比安装件装配部31靠下方的位置，在安装件装配部31与弹性构件73之间配置有阀单元41B的大部分。
由此，能将上下比较长的阀单元41B配置于下方，并且由于在将变速器壳体5弹性支撑于车体2的弹性构件73的下侧附近配置阀单元41B的重心，因此能将作为重量物的阀单元41B配置于摆动中心(场所未知)的附近，能有效地抑制振动。
虽然公开了本发明的实施例，但很明显，本领域技术人员能在不脱离本发明的范围的情况下加以变更。旨在将所有这种修改和等价物包含在所附的权利要求中。

Claims (4)

1.一种混合动力车辆用驱动装置，具备：
变速机构，其改变发动机传来的驱动力的转速；
变速器壳体，其收纳上述变速机构；以及
电动机，其将驱动力传递到上述变速机构，
上述变速器壳体通过安装装置装配到车体，上述混合动力车辆用驱动装置的特征在于，
上述电动机配置于上述变速机构的上方，
上述变速器壳体具有从上述发动机的一侧起依次配置的右壳体、左壳体以及罩构件，
由上述右壳体、上述左壳体以及上述罩构件形成收纳上述变速机构的变速机构收纳部，
上述左壳体具有：
左壳体主体部，其形成上述变速机构收纳部的一部分；以及
鼓出部，其从上述左壳体主体部向上方鼓出，装配上述电动机的一端侧，
在上述左壳体主体部的上表面中的上述鼓出部的前方形成装配上述安装装置的安装件装配部，
上述安装件装配部与上述鼓出部在上述左壳体的左端部前后排列形成。
2.根据权利要求1所述的混合动力车辆用驱动装置，其特征在于，
上述安装装置在上述安装件装配部的上方具有弹性构件，
在上下方向上，上述电动机的输出轴的轴心配置于上述安装件装配部与上述弹性构件之间。
3.根据权利要求2所述的混合动力车辆用驱动装置，其特征在于，
具备自动进行上述变速机构的变速的换挡单元，
上述换挡单元在车辆前后方向上相对于上述安装件装配部配置于与上述电动机相反的一侧。
4.根据权利要求3所述的混合动力车辆用驱动装置，其特征在于，
上述换挡单元具有底板，在上述底板至少装配有阀单元，该阀单元通过油压使上述变速机构动作，
上述左壳体具有装配上述底板的底板装配部，
上述底板装配部在上下方向上配置于比上述安装件装配部靠下方的位置，
在上述安装件装配部与上述弹性构件之间配置有上述阀单元的大部分。
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