CN114728569A - 车辆的驱动单元 - Google Patents

车辆的驱动单元 Download PDF

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Publication number
CN114728569A
CN114728569A CN202080065396.1A CN202080065396A CN114728569A CN 114728569 A CN114728569 A CN 114728569A CN 202080065396 A CN202080065396 A CN 202080065396A CN 114728569 A CN114728569 A CN 114728569A
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China
Prior art keywords
vehicle
inverter
wire harness
electric
electric motor
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CN202080065396.1A
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English (en)
Inventor
谷泽升治
堀部晋佑
山岸雅治
鹰羽千花
安藤俊彦
东谷洸平
梅村宪史
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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Publication of CN114728569A publication Critical patent/CN114728569A/zh
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    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207Wire harnesses
    • B60R16/0215Protecting, fastening and routing means therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • B60L58/32Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60K11/00Arrangement in connection with cooling of propulsion units
    • B60K11/02Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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    • B60K13/02Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
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    • B60K6/28Arrangement 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
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    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/40Arrangement 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
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60K6/20Arrangement 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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    • B60K6/20Arrangement 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
    • B60K6/42Arrangement 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
    • B60K6/48Parallel type
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K5/00Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/04Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
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Abstract

具备:内燃机(21)、具有第一电动机(31)和第二电动机(33)的电动单元(23)、配设于电动单元的上方的逆变器(27)、将逆变器与第一电动机的第一端子座(61)电连接的第一电线束(41)以及将逆变器与第二电动机的第二端子座(62)电连接的第二电线束(42),第一电动机和第二电动机沿车辆前后方向配设,并且相对于第一电动机和第二电动机中的配设于前后方向前侧的一方的电动机,第一电动机和第二电动机中的配设于前后方向后侧的另一方的电动机被配设为偏靠上下方向上侧,电动单元具有由一方的电动机的上方且与前端相比靠后方的区域和另一方的电动机的前方且与上端相比靠下方的区域形成的规定的空间(A),第一端子座和第二端子座位于规定的空间。

Description

车辆的驱动单元
技术领域
本发明涉及一种车辆的驱动单元,尤其涉及一种提高电线束的保护性能的技术。
背景技术
最近,将发动机用于发电,并能够利用基于电机的驱动力进行行驶的所谓混合动力车辆正在广泛普及。
在这样的混合动力车辆的发动机室内配设有:电机、发动机、将通过该发动机运转而产生的驱动力转换为电能的发电机以及进行交流、直流的转换的逆变器等多个装置。
这样,与以往的将发动机作为驱动源的车辆的发动机室相比,混合动力车辆的发动机室内的布局非常复杂,因此,如何配置各装置,使用什么样的部件成为了课题。
为了解决这样的布局的课题,可以考虑在设置于电机的车辆左右方向侧面的端子座连接高电压线缆(专利文献1)。
现有技术文献
专利文献
专利文献1:日本特开2014-97727号公报
发明所要解决的课题
但是,在上述专利文献1所公开的技术中,例如在车辆发生前方碰撞导致电机向车辆后方移动的情况下,存在复杂地配设于发动机室内的各装置与电机的端子座接触,从而导致端子座破损的担忧,还有进一步改善的余地。
发明内容
本发明是鉴于这样的课题而完成的,其目的在于,提供一种车辆的驱动单元,该车辆的驱动单元能够在车辆的碰撞时抑制电机和逆变器的端子座(第一端子座、第二端子座)发生破损。
用于解决课题的技术手段
为了达成上述目的,本发明的车辆的驱动单元具备:内燃机,该内燃机配设于车辆的发动机室内;电动单元,该电动单元具有第一电动机和第二电动机,并配设于所述内燃机的车辆左右方向一方,该第一电动机通过所述内燃机的驱动而发电,该第二电动机通过从所述车辆的行驶用电池供给的电力而进行驱动;逆变器,该逆变器配设于所述电动单元的上方;第一电线束,该第一电线束将所述逆变器与所述第一电动机的第一端子座电连接;以及第二电线束,该第二电线束将所述逆变器与所述第二电动机的第二端子座电连接,所述第一电动机和所述第二电动机沿车辆前后方向配设,并且,相对于所述第一电动机和所述第二电动机中的配设于前后方向前侧的一方的电动机,所述第一电动机和所述第二电动机中的配设于前后方向后侧的另一方的电动机被配设为偏靠上下方向上侧,所述电动单元具有规定的空间,该规定的空间由所述一方的电动机的上方且与前端相比靠后方的区域和所述另一方的电动机的前方且与上端相比靠下方的区域形成,所述第一端子座和所述第二端子座位于所述规定的空间。
发明的效果
根据本发明的车辆的驱动单元,使第二电动机位于第一电动机的车辆前后方向后侧且上下方向上侧而形成规定的空间,并使第一端子座和第二端子座位于该空间,因此,在车辆左右方向上观察,能够在与电动单元的外缘相比靠内侧设置第一端子座和第二端子座。由此,能够在车辆发生碰撞时抑制电机和逆变器的第一端子座和第二端子座破损。
附图说明
图1是车辆的概略立体图。
图2是发动机室的俯视图。
图3是发动机室的俯视图。
图4是发动机室的主视图。
图5是从前方右上观察驱动桥、减速器及逆变器的立体图。
图6是从前方左上观察驱动桥和减速器的立体图。
图7是驱动桥、减速器及逆变器的左侧面图。
图8是驱动桥和减速器的主视图。
图9是从前方右上观察驱动桥和减速器向后方移动后的驱动桥、减速器及逆变器的立体图。
图10是说明车辆与障碍物发生前方碰撞之前的各装置的配置的说明图。
图11是说明车辆与障碍物发生前方碰撞之后的各装置的配置的说明图。
具体实施方式
以下,基于附图,对本发明的一个实施方式进行说明。
参照图1,示出了车辆1的概略立体图。
车辆1是具备驱动轮3、电池组(行驶用电池)5及驱动单元7的所谓混合动力车辆。该车辆构成为,能够通过驱动单元7产生驱动力而驱动驱动轮3进行行驶,该驱动单元7从配设于车身2的车辆前后方向中央下侧的电池组5被供给电力。
另外,车辆1构成为,能够进行在减速的同时通过驱动单元7发电而将电力供给并积蓄于电池组5的所谓再生制动。此外,在驱动单元7设有后述的发动机21,车辆1构成为,能够通过使发动机21运转而发电,而将电力供给并积蓄于电池组5。
以下,对各装置等进行详细说明。此外,为了方便说明,将车辆前后方向前方和后方仅称作前方或后方,将车辆左右方向左方和右方仅称作左方或右方,将车辆上下方向上方和下方仅称作上方或下方。
参照图2和图3,示出了发动机室10的俯视图,参照图4,示出了发动机室10的主视图。
发动机室10是由上杆部11、上侧部13、地板15等车身2前侧的骨骼部件覆盖而形成的空间。在该发动机室10配设有驱动单元7。
驱动单元7具备:发动机(内燃机)21、驱动桥(电动单元)23、减速器(变速器)24、驱动轴25、逆变器27以及电动助力器(制动力辅助装置)29。在该驱动单元7中,发动机21和驱动桥23经由例如设置于发动机21的上端右侧的第一固定件7a、设置于驱动桥23的上端左侧的第二固定件7b以及设置于发动机21的下端后侧的第三固定件7c而以能够摆动的方式安装于车身2。发动机21是燃烧贮存于未图示的燃料箱的燃料而运转的内燃机。该发动机21能够通过运转来驱动输出轴21a(参照后述的图5)。驱动桥23是固定于发动机21的左侧的接合面(接合部)23a的电动单元,具有发电机(第一电动机)31和电机(第二电动机)33。
在发动机21的上方配置有空气净化器20(参照图3)。空气净化器20是用于去除吸入到发动机21的空气中的垃圾、尘埃的装置,该空气净化器20配置在发动机21的吸气通路22的中途。以下,将与空气净化器20相比靠下游侧(吸气通路22的出口侧,发动机侧)的吸气通路22称作下游吸气通路22a,并将与空气净化器20相比靠上游侧(吸气通路22的入口侧)的吸气通路22称作上游吸气通路22b。
下游吸气通路22a从空气净化器20的前表面朝向下方延伸设置。另一方面,上游吸气通路22b形成为,在空气净化器20的前表面中从与下游吸气通路22a相比的车辆左右方向左侧朝向左斜前方延神设置,并在通过驱动桥23的上方后向车辆右侧弯曲的形状。
参照图5,示出了从前方右上观察驱动桥23、减速器24及逆变器27的立体图。另外,参照图6,示出了从前方左上观察驱动桥23和减速器24的立体图。发电机31是将通过发动机21而驱动的输出轴21a的驱动力转换为电能的发电机。电机33是通过从电池组5经由逆变器27被供给电力而驱动的电动电机。另外,电机33能够利用车辆1行驶产生的驱动轮3的旋转而一边使驱动轮3减速一边进行发电。该电机33位于发电机31的后侧且上侧。
减速器24是位于发动机21与发电机31及电机33之间的齿轮单元。该减速器24能够使电机33的转速减速并且使转矩上升,而将驱动力传递至驱动轴25。驱动轴25是一端以能够传递驱动力的方式与减速器24连接,另一端以能够传递驱动力的方式与驱动轮3连接的轴部件。
逆变器27是能够将直流电流转换为三相交流电流、将三相交流电流变更为直流电流以及能够变更电压的转换装置。该逆变器27也被称作动力驱动单元(PDU),内置有逆变器电路和电子控制装置。逆变器电路包含IGBT(Insulated Gate Bipolar Transistor:绝缘栅双极型晶体管)、MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor:金属氧化物半导体场效应管)等开关元件。另外,电子控制装置具有控制开关元件的作动状态(接通切断的时机、驱动频率)的功能。
另外,逆变器27例如前端固定于上杆部11,左端固定于上侧部13(参照图2)。另外,逆变器27以前侧朝向下方倾斜的方式以倾斜角度θ(例如10度)的姿势配设(参照后述的图7)。
具体而言,在逆变器27的前端部设有平板状的前端支承部27a。前端支承部27a以其下表面侧与上杆部11的顶面面接触的状态相对于上杆部11被固定。另外,在逆变器27的后端部设有支架27b(参照后述的图7)。
支架27b形成为将逆变器27与未图示的纵梁等框架部件之间在纵方向上连接的形状。支架27b的下端面固定于纵梁的顶面,支架27b的上端面固定于逆变器27的底面。
并且,逆变器27经由第一电线束41与发电机31电连接,经由第二电线束42与电机33电连接,经由第三电线束43与电池组5电连接。此外,逆变器27、发电机31、电机33、第一电线束41、第二电线束42及第三电线束43的连接结构和第一电线束41、第二电线束42及第三电线束43的形状等的详细说明将在之后叙述。另外,第一电线束41、第二电线束42及第三电线束43也被总称为电线束组40。
由此,驱动单元7能够通过逆变器27将积蓄于电池组5的电力转换为三相交流电流而供给至电机33以驱动该电机33,并经由减速器24及驱动轴25驱动驱动轮3而进行行驶。另外,驱动单元7能够在使驱动轮3减速时通过驱动桥23进行发电,能够通过使发动机21运转而通过发电机31进行发电。并且,驱动单元7能够用逆变器27将由发电机31和电机33发出的电力转换为直流电流而积蓄于电池组5。
这里,电池组5是例如锂离子电池、镍氢电池,是能够供给数百伏特的高电压直流电流的蓄电池。该电池组5配置于车辆1的下表面(车室地板下)、车辆后部,车室内、行李室内等,经由逆变器27与电机和发电机31电连接。
另外,电池组5能够向电机33供给电力。并且,电池组5能够由电机33的再生电力、发电机31的发电电力进行充电,并且也能够接受来自车辆外部的供电而进行充电(外部充电)。
电动助力器29是对车辆1的驾驶员踏压制动踏板而使设置于各车轮(驱动轮3)的制动装置3a工作时所需的力进行助力的电动的助力装置。该电动助力器29的中心C位于驱动桥23及逆变器27的后方且与逆变器27的后部下端P相比的下方。
根据图5,在逆变器27设有台阶部51、直流用电路53、交流端子座55以及直流端子座57。另外,在逆变器27连接有制冷剂配管71,该制冷剂配管71供作为用于冷却逆变器电路的制冷剂的EV冷却水流通。
台阶部51是从逆变器27的上部右侧中的与前后方向大致中央相比的前侧向左方凹陷的台阶。
直流用电路53是内设于逆变器27的上部中的与台阶部51相比的后侧的电路。
交流端子座55是配设于逆变器27的上部右侧的台阶部51的左侧面的端子座。在该交流端子座55,第一电线束41的一端41a和第二电线束42的一端42a以从交流端子座55向右方延伸的方式连接。
直流端子座57是配设于逆变器27的上部右侧中的直流用电路53的右方的端子座。在该直流端子座57,第三电线束43的一端43a和第四电线束44的一端44a以从直流端子座57向右方延伸的方式连接。
参照图7,示出了驱动桥23、减速器24及逆变器27的左侧面图。另外,参照图8,示出了驱动桥23及减速器24的主视图。在发电机31的上端31a设有第一端子座61,在电机33的前端33a设有第二端子座62。第一端子座61是与第一电线束41的另一端41b电连接的端子座,构成能够经由第一电线束41使发电机31与逆变器27间通电。第二端子座62是与第二电线束42的另一端42b电连接的端子座,构成为能够经由第二电线束42使电机33与逆变器27间通电。
如上所述,电机33位于发电机31的后侧且上侧,换言之,配设为偏靠上下方向上侧。通过这样的发电机31与电机33的位置关系,在驱动桥23,形成有由发电机31的上端31a和电机33的前端33a规定的空间A。即,第一端子座61及第二端子座62位于规定的空间A。
根据图1,在电池组5的前端配设有与第三电线束43的另一端43b电连接的第三端子座63。另外,在发动机21的前侧右端配设有电动空气压缩机64,该电动空气压缩机64用于对车辆1的车室内的空气的温度进行调整的空调装置9,并与第四电线束44的另一端44b电连接。这里,电动空气压缩机64消耗的电力与发电机31及电机33相比较小。因此,第四电线束44是与第一电线束41、第二电线束42及第三电线束43相比较细的配线。
根据图4,第一电线束41从逆变器27的交流端子座55向右方向延伸,并从与作为与发动机21的接合面23a相比的左侧的左端21b相比的右侧向下方和左方延伸而与发电机31的第一端子座61连接。另外,根据图5,第一电线束41以上下方向中央向后方弯曲的方式延伸。第二电线束42与第一电线束41同样地延伸,换言之,以沿着第一电线束41的后方的方式延伸而与电机33的第二端子座62连接。
根据图1,第三电线束43从逆变器27的直流端子座57向右方延伸,并沿着发动机21的后方向下方延伸,之后,向后方延伸而与电池组5的第三端子座63连接。另外,第三电线束43沿着地板15的车辆前方侧的表面布线。这样,通过将与电池组5连接的第三电线束43在与第一电线束41和第二电线束42相比的车辆后方布线,从而抑制了车辆1发生前方碰撞时的第三电线束43的变形、破损。
另外,第四电线束44从逆变器27的直流端子座57中的与第三电线束43的一端43a相比的前方向右方延伸,在由第一电线束41及第二电线束42和逆变器27形成的通路(空间)S(图2~5)延伸,并沿着发动机21的前侧延伸而与电动空气压缩机64连接。此外,各电线束可以形成为保持上述姿势,也可以使用夹子等来保持上述姿势。
这里,上游吸气通路22b与电线束组40相比配置于车辆前方侧。上游吸气通路22b在俯视下以从电线束组40的右侧向电线束组40的前方挤出的方式配置,发挥了相对于来自车辆前方的外力保护电线束组40的功能。
由此,成为了电线束组40的前方被上游吸气通路22b保护的状态,车辆发生前方碰撞时的外力难以直接作用于电线束组40。因此,能够抑制外力引起的电线束组40的变形、融化,能够提高电线束组40相对于外力的保护性。
根据图5、7,制冷剂配管71以能够供EV冷却水流通的方式将逆变器27的前端部与后端部连接。EV冷却水从逆变器27的前端侧流入,并从后端侧流出。由此,制冷剂配管71能够防止与电线束组40的干涉,并实现简单的布局。另外,能够缩短制冷剂配管71的长度,而能够降低与EV冷却水的循环相关的压力损失。因此,能够提高逆变器27的冷却效率。另外,与例如制冷剂配管71仅与逆变器27的前端部连接的结构相比,能够缩短配管长度,能够实现高效的配管布线。
在逆变器27的车辆后方侧配置有贮存EV冷却水的冷却液罐73(容器)。冷却液罐73是用于从EV冷却水分离水中的气泡的装置。对逆变器27进行冷却的EV冷却水的循环路径与对发动机21进行冷却的发动机冷却水的循环路径分开设置。
这样,通过将可能因外力而变形的容器状的部件配置于逆变器27的后方,能够使冷却液罐73如缓冲物那样作用,能够防止逆变器27因与地板15的接触而破损。因此,能够提高逆变器27的保护性。另外,由于电线束组40不在逆变器27的后方布线,因此能够有效利用发动机室内的空着的空间,能够实现车辆1的小型化、轻量化。
流入逆变器27的EV冷却水贮存于未图示的冷却水箱,并经由泵、未图示的EV散热器而被导入逆变器27。另外,通过逆变器27后的EV冷却水在对其他的部件(例如后部电机、车载充电装置等)进行冷却之后回流到冷却水箱。
参照图9,示出了从前方右上观察的驱动桥23和减速器24向后方移动时的驱动桥23、减速器24及逆变器27的立体图。另外,参照图10及图11,示出了说明车辆1与障碍物100发生前方碰撞的前后的各装置的配置的说明图。以下,按照图9~11,对本发明的驱动单元7的作用及效果进行说明。
如上所述,逆变器27例如前端固定于上杆部11,左端固定于上侧部13。另一方面,发动机21及驱动桥23经由第一固定件7a、第二固定件7b及第三固定件7c以能够摆动的方式安装于车身2。因此,有时逆变器27在驱动桥23摆动的情况在也不连动,而进行与驱动桥23相对不同的动作。
这里,根据图10,在驱动单元7的前方配设有补强板2a、散热器21c。该散热器21c的上端21d位于逆变器27的前方。另外,散热器21c的下端21e固定于作为车辆1的骨骼部件的悬挂横梁17。由此,在如图11那样车辆1与障碍物100发生前方碰撞的情况下,能够考虑发动机21和驱动桥23通过与驱动单元7相比位于前方的补强板2a、散热器21c而相对于逆变器27相对向后方移动的情况。
这样,即使在发动机21和驱动桥23相对于逆变器27相对向后方移动的情况下,由于第一电线束41和第二电线束42从一端41a、42a向右方延伸,因此另一端41b、42b以一端41a、42a为轴向后方转动地动作,能够抑制第一电线束41和第二电线束42被拉伸。另外,通过在逆变器27形成台阶部51并在台阶部51配设交流端子座55,即使将第一电线束41和第二电线束42形成为从一端41a、42a向右方延伸,也能够抑制第一电线束41和第二电线束42与发动机21发生干涉。
另外,与燃烧燃料而工作的发动机21相比,驱动桥23的发热量较小,驱动桥23的上方的空间与发动机21的上方的空间相比为低温。鉴于此,上述的电线束组40不在发动机21的上方的空间内布线,而是在与发动机21相邻配置的驱动桥23的上方的空间内布线。因此,能够抑制电线束组40因发动机21产生的热而变形、融化,能够提高电线束组40相对于热的保护性。另外,在车辆碰撞时电池组5周围的高电压电路变得难以露出,因此能够提高救护作业性的安全性,能够改善乘员保护性能。
另外,将电线束组40从逆变器27的车宽方向端面牵出的布局与将电线束组40从逆变器27的背面侧(车辆后方侧)牵出的布局相比,能够提高与发动机室的维护相关的作业性。具体而言,在作业者从车辆1的前方看发动机室内时,电线束组40是在离作业者较近的位置(跟前)布线的状态。由此,例如将电线束组40从逆变器27取下时手不需要伸到内部,能够容易地进行作业。另外,能够通过目视直接确认电线束组40与逆变器的连接部位,能够正确地把握电线束组40、逆变器27的状态。
另外,第一电线束41和第二电线束42以上下方向中央向后方弯曲的方式延伸,因此即使在车辆1与障碍物100发生前方碰撞而逆变器27以从发动机21和驱动桥23向上方离开的方式移动的情况下,也能够抑制拉伸力作用于第一电线束41和第二电线束42。
第三电线束43和第四电线束44是被接通直流电流的电线束。因此,需要将发电机31、电机33发出的交流电流转换为直流之后向第三电线束43和第四电线束44供给。因此,通过在逆变器27中的直流端子座57的后侧配设直流用电路53而形成台阶部51,能够使逆变器27、各电线束等全面小型化、能够抑制车辆碰撞时的第三电线束43的变形、破损,能够提高车辆保护性。
第四电线束44从逆变器27的直流端子座57中的与第三电线束43的一端43a相比的前方向右方延伸。换言之,第四电线束44的一端44a位于第二电线束42的一端42a与第三电线束43的一端43a之间。因此,通过将作为与第二电线束42和第三电线束43相比较细的配线的第四电线束44的一端44a的前后配设为夹在第二电线束42的一端42a与第三电线束43的一端43a之间,能够抑制例如在车辆1行驶时驱动轮卷起的小石头等所谓碎屑导致的第四电线束44劣化。
另外,第四电线束44在第一电线束41及第二电线束42与逆变器27之间延伸。因此,即使在上述那样发动机21和驱动桥23相对于逆变器27相对向前后移动的情况下,也能够抑制第一电线束41和第二电线束42的摆动导致第四电线束44被拉伸。
并且,逆变器27以前侧朝向下方倾斜的方式以倾斜了角度θ的前傾姿势配设,后部下端P与电动助力器29的中心C相比位于上方。因此,在车辆1与障碍物100发生前方碰撞的情况下,逆变器27能够随着向后方移动而后部下端P向上方移动。另外,即使在后部下端P向上方移动从而逆变器27与电动助力器29接触的情况下,由于后部下端P与电动助力器29的中心C相比位于上方,因此能够减轻逆变器27与电动助力器29接触导致的彼此的破损。
而且,发电机31的第一端子座61和电机33的第二端子座62位于通过电机33位于发电机31的后侧且上侧而形成的规定的空间A。由此,即使在车辆1与障碍物100发生前方碰撞的情况下,也能够抑制因逆变器27等与第一端子座61和第二端子座62碰撞而导致第一端子座61和第二端子座62破损。另外,通过散热器21c与驱动单元7相比位于前方,在车辆1与障碍物100发生前方碰撞时,通过散热器21c覆盖规定的空间A的前方,能够抑制飞散物等导致第一端子座61和第二端子座62以及第一电线束41的另一端41b和第二电线束42的另一端42b破损。
并且,散热器21c的下端21e固定于悬挂横梁17的前端,即被支承,因此,在车辆1与障碍物100发生前方碰撞时,减轻了散热器21c向后方移动,从而能够抑制散热器21c与驱动桥23接触,即使在散热器21c与驱动桥23接触的情况下,也能够减轻施加于驱动桥23的冲击。
如以上说明的那样,在本发明的车辆1的驱动单元7中,具有:配设于车辆1的发动机室10内的发动机21、通过发动机21的驱动而发电的发电机31以及通过从车辆1的电池组5供给的电力而驱动的电机33,并将具备:配设于发动机21的车辆左右方向一方的驱动桥23、配设于驱动桥23的上方的逆变器27、将逆变器27与发电机31的第一端子座61电连接的第一电线束41以及将逆变器27与电机33的第二端子座62电连接的第二电线束42。
另外,发电机31和电机33沿车辆1前后方向配设,并且,相对于作为发电机31和电机33中的配设于前后方向前侧的一方的电动机的发电机31,作为发电机31和电机33中的配设于前后方向后侧的另一方的电动机的电机33被配设为偏靠上下方向上侧,驱动桥23具有由发电机31的上方且与前端相比靠后方的区域和电机33的前方且与上端相比靠下方的区域形成的规定的空间A,第一端子座61和第二端子座62位于规定的空间A。
因此,使电机33位于发电机31的车辆1前后方向后侧且上下方向上侧,而在发电机31形成由发电机31的上方且与前端相比靠后方的区域和电机33的前方且与上端相比靠下方的区域规定的空间A,并使第一端子座61和第二端子座62位于该规定的空间A,从而,在从车辆1左右方向观察时,能够将第一端子座61和第二端子座62设置在与驱动桥23的外缘相比的内侧。
并且,第一电线束41和第二电线束42以向车辆前后方向后方弯曲的方式形成,因此,在驱动桥23与逆变器27相对移动的情况下,能够进一步降低施加于第一电线束41和第二电线束42的拉伸力。
并且,具备配设于发动机21与驱动桥23之间的减速器24,第一电线束41从逆变器27朝向车辆左右方向的发动机21侧延伸并向下方延伸而与发电机31的第一端子座61连接,第二电线束42从逆变器27朝向车辆左右方向的发动机21侧延伸并向下方延伸而与电机33的第二端子座62连接,在车辆左右方向上观察,第一电线束41和第二电线束42与减速器24和发动机21的接合面23a相比位于驱动桥23侧。
因此,在车辆左右方向上观察,将第一电线束41及第二电线束42收容于与减速器24和发动机21的接合面23a相比的驱动桥23侧,因此,能够缩小车辆1左右方向上的第一电线束41及第二电线束42的摆动范围。
并且,具备使车辆1制动的制动装置3a和施加制动装置3a的工作所需的力的电动助力器29,电动助力器29位于驱动桥23的车辆前后方向后侧及上下方向上侧,在车辆前后方向上观察,逆变器27以后端的上下方向下部与电动助力器29的车辆上下方向中央相比位于上侧且前后方向前侧的方式前倾,能够抑制车辆1发生前方碰撞时逆变器27与电动助力器29接触,或即使逆变器27与电动助力器29接触也能够减轻施加于电动助力器29的冲击。
并且,具备位于驱动桥23的前方的散热器21c,散热器21c在例如因车辆1发生前方碰撞而向后方移动时,覆盖规定的空间A的前方,因此能够从飞散物等保护位于规定的空间A的第一端子座61和第二端子座62。
特别是,散热器21c的上端21d位于逆变器27的前方,并且下端21e固定于左右一对悬挂横梁17的前端,因此例如在车辆1的前方碰撞导致散热器21c向后方移动时,散热器21c的上端21d被逆变器27支承,下端21e被左右一对悬挂横梁17支承,因此能够良好地抑制散热器21c进入到规定的空间A。
并且,电机33配设于发电机31的前后方向后侧,并且相对于发电机31配设为偏靠上下方向上侧,第一电线束41和第二电线束42向车辆前后方向后方弯曲,第一电线束41从发电机31的第一端子座61朝向后方延伸设置,第二电线束42从电机33的第二端子座62朝向前方延伸设置,因此,能够抑制车辆1发生前方碰撞时第一电线束41被周边部件夹住,由于朝向前方延伸设置从位于发电机31的后侧的电机33的第二端子座62延伸设置的、换言之从位于规定的空间A内的后侧的第二端子座62延伸设置的第二电线束42,因此能够实现规定的空间A内的电线束布线的前后方向上的紧凑化。
以上完成了本发明的车辆的驱动单元的说明,但本发明不限于上述实施方式,能够在不脱离发明的主旨的范围内进行变更。
例如,在本实施方式中,使电机33位于发电机31的后侧且上侧,但也可以使发电机31与电机33的位置相反,换言之,使发电机31位于电机33的后侧且上侧。
另外,在本实施方式中,使用了减速器24,但也可以使用能够调整减速程度的变速器。
另外,在本实施方式中,使第一电线束41及第二电线束42向车辆前后方向后方弯曲,但也可以向前方弯曲,也可以根据各装置等的位置关系而适当变更。
另外,在上述的实施方式中,例示了在逆变器27的后方配置有冷却液罐73的结构,但也可以代替冷却液罐73而配置储水箱(用于吸收EV冷却水的体积变化的箱),也可以配置清洗液箱(贮存挡风玻璃清洗液的箱)。至少通过将贮存液体的容器配置于逆变器27的后方,就能够起到与上述的实施方式相同的效果。
本发明的第一实施方式的车辆的驱动单元具备:内燃机,该内燃机配设于车辆的发动机室内;电动单元,该电动单元具有第一电动机和第二电动机,并配设于上述内燃机的车辆左右方向一方,该第一电动机通过上述内燃机的驱动而发电,该第二电动机通过从上述车辆的行驶用电池供给的电力而进行驱动;逆变器,该逆变器配设于上述电动单元的上方;第一电线束,该第一电线束将上述逆变器与上述第一电动机的第一端子座电连接;以及第二电线束,该第二电线束将上述逆变器与上述第二电动机的第二端子座电连接,上述第一电动机和上述第二电动机沿车辆前后方向配设,并且,相对于上述第一电动机和上述第二电动机中的配设于前后方向前侧的一方的电动机,上述第一电动机和上述第二电动机中的配设于前后方向后侧的另一方的电动机被配设为偏靠上下方向上侧,上述电动单元具有规定的空间,该规定的空间由上述一方的电动机的上方且与前端相比靠后方的区域和上述另一方的电动机的前方且与上端相比靠下方的区域形成,上述第一端子座和上述第二端子座位于上述规定的空间。
在本发明的第一实施方式中,在电动单元,通过形成由一方的电动机的上方且与前端相比靠后方的区域和另一方的电动机的前方且与上端相比靠下方的区域规定的空间,并使第一端子座和第二端子座位于该规定的空间,由此,在车辆左右方向上观察,能够在与电动单元的外缘相比靠内侧设置第一端子座和第二端子座。
本发明的第二实施方式的车辆的驱动单元中,可以是,上述第一电线束和上述第二电线束向车辆前后方向前方或后方弯曲。
在本发明的第二实施方式中,通过使第一电线束和第二电线束向前方或后方弯曲,在电动单元与逆变器相对移动的情况下,能够降低施加于第一电线束和第二电线束的拉伸力。
本发明的第三实施方式的车辆的驱动单元中,可以是,还具备变速器,该变速器配设于上述内燃机与上述电动单元之间,上述第一电线束从上述逆变器朝向车辆左右方向的上述内燃机侧延伸并向下方延伸而与上述第一电动机的上述第一端子座连接,上述第二电线束从上述逆变器朝向车辆左右方向的上述内燃机侧延伸并向下方延伸而与上述第二电动机的上述第二端子座连接,在车辆左右方向上观察,上述第一电线束和上述第二电线束与上述变速器和上述内燃机的接合部相比位于上述电动单元侧。
在本发明的第三实施方式中,在车辆左右方向上观察,通过将第一电线束和第二电线束收容在与变速器与内燃机的接合部相比的电动单元侧,能够缩短车辆左右方向上的第一电线束和第二电线束的摆动范围。
本发明的第四实施方式的车辆的驱动单元中,可以是,具备:制动装置,该制动装置使上述车辆制动;以及制动力辅助装置,该制动力辅助装置施加上述制动装置的工作所需的力,上述制动力辅助装置位于上述电动单元的车辆前后方向后侧和上下方向上侧,在车辆前后方向上观察,上述逆变器以后端的上下方向下部与上述制动力辅助装置的车辆上下方向中央相比位于上侧且前后方向前侧的方式前倾。
在本发明的第四实施方式中,以逆变器的后端的下部位于制动力辅助装置的与上下方向中央相比位于上侧且前侧的方式将逆变器前倾地配设,由此,在车辆发生前方碰撞时抑制逆变器与制动力辅助装置接触,或即使逆变器与制动力辅助装置发生了接触,也能够减轻施加于制动力辅助装置的冲击。
本发明的第五实施方式的车辆的驱动单元中,可以是,具备散热器,该散热器位于上述电动单元的前方,上述散热器在向后方移动时覆盖上述规定的空间的前方。
在本发明的第五实施方式中,例如在车辆发生前方碰撞导致散热器向后方移动时,通过覆盖规定的空间的前方,能够从飞散物等保护位于规定的空间的第一端子座和第二端子座。
本发明的第六实施方式的车辆的驱动单元中,可以是,上述散热器的上端位于上述逆变器的前方,并且下端固定于左右一对的悬挂横梁的前端。
在本发明的第六实施方式中,散热器的上端位于逆变器的前方,下端固定于左右一对悬挂横梁的前端,由此,例如在车辆发生前方碰撞导致散热器向后方移动时,散热器的上端被逆变器支承,下端被左右一对悬挂横梁支承,因此能够良好地抑制散热器进入到规定的空间。
本发明的第七实施方式的车辆的驱动单元中,可以是,上述第二电动机配设于上述第一电动机的前后方向后侧,并且配设为相对于上述第一电动机偏靠上下方向上侧,上述第一电线束和上述第二电线束向车辆前后方向后方弯曲,上述第一电线束从上述第一电动机的上述第一端子座朝向后方延伸设置,上述第二电线束从上述第二电动机的上述第二端子座朝向前方延伸设置。
在本发明的第七实施方式中,将从位于第二电动机的前侧的第一电动机的第一端子座、换言之从位于规定的空间内的前侧的第一端子座延伸设置的第一电线束朝向后方延伸设置,由此,例如在车辆发生前方碰撞时,能够抑制第一电线束被周边部件夹住,将从位于第一电动机的后侧的第二电动机的第二端子座、换言之从位于规定的空间内的后侧的第二端子座延伸设置的第二电线束朝向前方延伸设置,由此,能够实现规定的空间中的电线束布线的前后方向上的紧凑化。
本发明的第八实施方式的车辆的驱动单元中,可以是,具备制冷剂配管,该制冷剂配管分别与上述逆变器的前端部和后端部连接,供对上述逆变器进行冷却的制冷剂流通。
在本发明的第八实施方式中,将供对逆变器进行冷却的制冷剂流通的制冷剂配管分别与逆变器的前端部和后端部连接,由此,能够防止制冷剂配管与第一电线束、第二电线束发生干涉。
本发明的第九实施方式的车辆的驱动单元中,可以是,具备贮存液体的容器,该容器与上述逆变器在车长方向上排列而配置于所述逆变器的车辆后方侧。
在本发明的第九实施方式中,将贮存液体的容器配置于逆变器27的后方,由此,使该容器如缓冲物那样作用,能够防止逆变器的破损。
符号说明
1 车辆
3a 制动装置
5 电池组(走行用电池)
9 空调装置
10 发动机室
17 悬挂横梁
21 发动机(内燃机)
21c 散热器
21d 上端
21e 下端
23 驱动桥(电动单元)
23a 接合面(接合部)
24 减速器(变速器)
27 逆变器
29 电动助力器(制动力辅助装置)
31 发电机(第一电动机)
33 电机(第二电动机)
41 第一电线束
42 第二电线束
61 第一端子座
62 第二端子座
64 电动空气压缩机
71 制冷剂配管
73 冷却液罐(容器)
A 规定的空间

Claims (9)

1.一种车辆的驱动单元,其特征在于,具备:
内燃机,该内燃机配设于车辆的发动机室内;
电动单元,该电动单元具有第一电动机和第二电动机,并配设于所述内燃机的车辆左右方向一方,该第一电动机通过所述内燃机的驱动而发电,该第二电动机通过从所述车辆的行驶用电池供给的电力而进行驱动;
逆变器,该逆变器配设于所述电动单元的上方;
第一电线束,该第一电线束将所述逆变器与所述第一电动机的第一端子座电连接;以及
第二电线束,该第二电线束将所述逆变器与所述第二电动机的第二端子座电连接,
所述第一电动机和所述第二电动机沿车辆前后方向配设,并且,相对于所述第一电动机和所述第二电动机中的配设于前后方向前侧的一方的电动机,所述第一电动机和所述第二电动机中的配设于前后方向后侧的另一方的电动机被配设为偏靠上下方向上侧,
所述电动单元具有规定的空间,该规定的空间由所述一方的电动机的上方且与前端相比靠后方的区域和所述另一方的电动机的前方且与上端相比靠下方的区域形成,
所述第一端子座和所述第二端子座位于所述规定的空间。
2.根据权利要求1所述的车辆的驱动单元,其特征在于,
所述第一电线束和所述第二电线束向车辆前后方向前方或后方弯曲。
3.根据权利要求1或2所述的车辆的驱动单元,其特征在于,
具备变速器,该变速器配设于所述内燃机与所述电动单元之间,
所述第一电线束从所述逆变器朝向车辆左右方向的所述内燃机侧延伸并向下方延伸而与所述第一电动机的所述第一端子座连接,
所述第二电线束从所述逆变器朝向车辆左右方向的所述内燃机侧延伸并向下方延伸而与所述第二电动机的所述第二端子座连接,
在车辆左右方向上观察,所述第一电线束和所述第二电线束与所述变速器和所述内燃机的接合部相比位于所述电动单元侧。
4.根据权利要求1~3中任一项所述的车辆的驱动单元,其特征在于,具备:
制动装置,该制动装置使所述车辆制动;以及
制动力辅助装置,该制动力辅助装置施加所述制动装置的工作所需的力,
所述制动力辅助装置位于所述电动单元的车辆前后方向后侧且上下方向上侧,
在车辆前后方向上观察,所述逆变器以后端的上下方向下部与所述制动力辅助装置的车辆上下方向中央相比位于上侧且前后方向前侧的方式前倾。
5.根据权利要求1~4中任一项所述的车辆的驱动单元,其特征在于,
具备散热器,该散热器位于所述电动单元的前方,
所述散热器在向后方移动时覆盖所述规定的空间的前方。
6.根据权利要求5所述的车辆的驱动单元,其特征在于,
所述散热器的上端位于所述逆变器的前方,并且下端固定于左右一对的悬挂横梁的前端。
7.根据权利要求1~6中任一项所述的车辆的驱动单元,其特征在于,
所述第二电动机配设于所述第一电动机的前后方向后侧,并且配设为相对于所述第一电动机偏靠上下方向上侧,
所述第一电线束和所述第二电线束向车辆前后方向后方弯曲,
所述第一电线束从所述第一电动机的所述第一端子座朝向后方延伸设置,
所述第二电线束从所述第二电动机的所述第二端子座朝向前方延伸设置。
8.根据权利要求1~7中任一项所述的车辆的驱动单元,其特征在于,
具备制冷剂配管,该制冷剂配管分别与所述逆变器的前端部和后端部连接,供对所述逆变器进行冷却的制冷剂流通。
9.根据权利要求1~8中任一项所述的车辆的驱动单元,其特征在于,
具备贮存液体的容器,该容器与所述逆变器在车长方向上排列而配置于所述逆变器的车辆后方侧。
CN202080065396.1A 2019-12-06 2020-11-09 车辆的驱动单元 Pending CN114728569A (zh)

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