CN101041322A - 用于平行电力混合动力车辆的附件驱动系统和方法 - Google Patents

用于平行电力混合动力车辆的附件驱动系统和方法 Download PDF

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CN101041322A
CN101041322A CNA2007101016971A CN200710101697A CN101041322A CN 101041322 A CN101041322 A CN 101041322A CN A2007101016971 A CNA2007101016971 A CN A2007101016971A CN 200710101697 A CN200710101697 A CN 200710101697A CN 101041322 A CN101041322 A CN 101041322A
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P·B·乌索洛
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
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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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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
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    • B60W10/30Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
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    • B60K25/00Auxiliary drives
    • B60K2025/005Auxiliary drives driven by electric motors forming part of the propulsion unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00Control systems specially adapted for hybrid vehicles
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Abstract

本发明提供一种用于平行电力混合动力车辆的附件驱动系统,该装置包括独立地连接到传动装置上的发动机和电动机/发电机。至少一个扭矩传递装置可选择性地使发动机和电动机/发电机与传动装置相连。主动皮带轮连接到发动机的输出轴。多个从动皮带轮中的每个连接到一附件。传动皮带将主动皮带轮和多个从动皮带轮连接地结合,并可操作地在主动皮带轮和多个从动皮带轮之间传递驱动力。控制器可操作地连接到扭矩传递装置、发动机和电动机/发电机,以保证向该组附件提供合适的动力。

Description

用于平行电力混合动力车辆的附件驱动系统和方法
技术领域
本发明主要涉及平行电力混合动力车辆上驱动附件的方法和装置。
背景技术
传统机动车辆的附件由发动机的输出提供动力。机电混合动力车辆一般包括一个内燃机以及一个或多个电动机/发电机。当发动机关闭,车辆由电动机/发电机提供动力时,混合动力车辆上的附件可能需要动力。传统上,当发动机关闭时,为了给混合动力车辆的附件提供动力,需要为每个这类附件提供一个单独的电动机。
典型的汽车附件驱动系统包括一个主动皮带轮,它连接到发动机输出轴,典型地如曲柄。柔性传动皮带缠绕在这个滑轮上,该皮带又缠绕多个从动轮。这些柔性传动皮带机构在主动皮带轮和从动皮带轮之间传递驱动力。从动皮带轮可以固定连接到本领域已知的附件上,如动力转向泵、空调压缩机、交流发电机和水泵。
平行电力混合动力车辆包括,适于从发动机或电动机或同时从二者接受输出动力的传动装置,此外,平行电力混合动力车辆中发动机提供的动力和电源提供的动力各自独立连接到传动装置,从而构成“平行”式连接。
发明内容
本发明的装置和方法提供了一种用于平行电力混合动力车辆的附件驱动系统。该装置包括至少一个可选择性地使发动机和电动机/发电机与传动装置相连的扭矩传递装置。主动皮带轮连接到发动机的输出轴。多个从动皮带轮中的每一个连接到多个附件中的一个。传动皮带连接地结合主动皮带轮和所述多个从动皮带轮,并可操作地在主动皮带轮和多个从动皮带轮之间传递驱动力。控制器可操作地连接到扭矩传递装置、发动机以及电动机/发电机,并设置为控制所述扭矩传递装置、发动机以及电动机/发电机,以保证向所述多个附件提供合适的动力。
通过操作混合动力链以维持一最低的输入(发动机)速度,本发明的方法允许在各种车辆运行条件下,即使是当发动机的燃料被切断和/或车辆已经停止时,仍然由发动机或电动机/发电机的动力驱动附件,而不是和通常的做法一样需要单独的附件驱动电机。能量从发动机或电动机/发电机传递给所述多个附件。发动机、电动机/发电机以及扭矩传递装置由例如电子控制器控制,以保证每个附件接受足够的能量以保持完全运转。
根据本发明的一个方面,该装置包括可操作地连接到电动机/发电机的存储装置,例如电池,该存储装置被设置为,当发动机产生多余的动力或回收来自制动的动力时,储存来自电动机/发电机的能量。
根据本发明的另一个方面,该方法包括建立预定的最小发动机速度,该速度下所有附件都保持完全运转。
根据本发明的另一个方面,当车辆运行时,包括当切断发动机燃料以降低燃料消耗时,控制混合动力链以保证输入速度(发动机曲柄速度和附件主动皮带轮速度)不在预定的最小发动机速度之下。
根据本发明的另一个方面,对于装有各种阀致动装置的发动机,该方法包括当发动机燃料被切除,附件由来自电动机/发电机经过发动机曲柄的动力驱动时,合适地操作进气阀和排气阀(例如保持进气阀和排气阀关闭),以降低转动阻力和泵送损失,从而提高附件驱动系统的效率。
从以下实施本发明的最佳方式的详细说明并结合附图,可以清楚地看到本发明的以上以及其它特征和优点。
附图说明
图1是根据本发明的用于平行电力混合动力车辆的附件驱动系统的示意图。
具体实施方式
参考附图,其中相似的参考标号代表相似的部件,图1示意性地示出了具有附件驱动系统11的平行电力混合动力链10。平行电力混合动力链10包括设置成将输出动力传递到主动皮带轮16和/或传动装置18的发动机12。发动机连接到控制器34并受它控制。主动皮带轮16可操作地连接到曲柄或输出轴14。平行电力混合动力链10也包括选择性地连接到发动机12和/或传动装置18的电动机/发电机32。控制器34可以设置成包括混合动力控制模块、发动机控制模块、传动控制模块、电动机/发电机控制模块以及必要的电力驱动或动力电路。控制器34连接到电动机/发电机32和能量存储装置36,存储装置36适于当发动机12产生多余的动力或当车辆制动动力被回收时,储存来自电动机/发电机32的能量。根据优选实施例,存储装置36为电池;但也可以设想出替代的存储装置。传动装置18可操作地连接到最终传动系统38。
由现有技术已知平行电力混合动力车辆的命名,是因为发动机12和电动机/发电机32与传动装置18构成平行式连接。换句话说,发动机12提供的动力和电动机/发电机32提供的动力独立连接到传动装置18。对于本发明来说,发动机12和电动机/发电机32看作独立连接到传动装置18,因为发动机12的动力不经过电动机/发电机32到传动装置18的路径,电动机/发电机32的动力也不经过发动机12到传动装置18的路径。
第一离合器20设置在电动机/发电机32和发动机12之间,第二离合器22设置在电动机/发电机32和传动装置18之间。离合器20,22可操作地连接到控制器34并受它控制。离合器20,22设置成可操作地与发动机12、电动机/发电机32和传动装置18耦合或断开,这样动力在它们之间可选择性地传递。可以预期,离合器20,22可替换地由任何选择性啮合的扭矩传递装置取代也是可行的。
主动皮带轮16通过传动皮带24连接到多个从动皮带轮26,26’和26”。每个从动皮带轮26,26’和26”分别与多个附件30,30’和30”中的一个相连,这样从动皮带轮26,26’和26”的转动传递动力以驱动与之相连的附件30,30’和30”。附件30,30’和30”可以包括例如,动力转向泵、水泵、交流发电机或空调压缩机。
来自发动机12的动力可以通过输出轴14、主动皮带轮16、传动皮带24、以及通过从动皮带轮26,26’和26”,向附件30,30’和30”传递动力。可替换地,当离合器20啮合时,来自电动机/发电机32的动力可以通过离合器20、输出轴14、主动皮带轮16、传动皮带24、以及通过从动皮带轮26,26’和26”,向附件30,30’和30”传递动力。为了在发动机关闭时向混合动力车辆的附件提供动力,传统上必须为每个这类附件提供一个单独的电动机。因此本发明在发动机12关闭时通过控制电动机/发电机32,向所有附件30,30’和30”提供动力,节省了为附件30,30’和30”传递动力所需要多个电动机的相关生产和安装成本。
为了保持完全运转,每个附件30,30’和30”必须驱动于预定最小速度之上。因此根据优选实施例,本发明建立一个预定的最小发动机速度Vm,计算该速度以保证附件30,30’和30”被合适地提供动力和保持操作状态。本发明的目的在于当附件30,30’和30”接受足够的动力以保持完全运转时,它们被“提供合适的动力”,“发动机速度”被定义为使用与之相连的传统速度传感器(未示出)测量的曲柄14转动速度。发动机速度最好是受到监控以保证向附件30,30’和30”提供合适的动力,替换实施例中可以监控附件驱动系统11的其它特性,例如皮带轮16,26,26’和26”和/或传动皮带24中的一个或多个的转动速度。
在发动机12有燃料供应并且正常运转的运行条件下,附件30,30’和30”受发动机12的动力驱动,和传统车辆一样。
正常要求混合动力车辆的发动机12关闭的运行条件下,控制器34切断燃料到发动机12的供应,根据需要控制离合器20全部或部分啮合,命令电动机/发电机32运行以向附件30,30’和30”提供动力。更确切地,当燃料传输被切断时,控制器34命令电动机/发电机32通过离合器20、发动机曲柄14、主动皮带轮16、传动皮带24、从动皮带轮26,26’和26”向附件30,30’和30”传递动力。该方法保证附件30,30’和30”在要求发动机燃料切断的运行条件下依然保持运转状态,而不需要独立的附件驱动电机。当电动机/发电机32通过发动机曲柄14将动力传递给附件30,30’和30”时,发动机曲柄14起着扭矩/动力传递装置的作用。对于装有可变阀致动机构的发动机,当发动机12的燃料被切断,附件30,30’和30”由电动机/发电机32通过发动机曲柄14提供动力时,控制器34能合适地操作进气阀13a和排气阀13b(例如,但不限于,保持进气阀13a和排气阀13b的关闭状态),以便减少曲柄的转动阻力和发动机泵送损失,从而改善附件驱动系统11的效率。
如果发动机12被关闭,车辆减速停止,离合器22可以使电动机/发电机32与传动装置18分离。其后,控制器34可以命令电动机/发电机32传递额外的动力以使发动机曲柄速度在预定最小值Vm之上,这样附件30,30’和30”就保持完全运转而不影响车辆性能。但是如果车辆由电动机/发电机32提供动力,离合器20和22必须被控制器34合适地控制以完全或部分结合,电动机/发电机32受控制器34控制以提供合适的动力运行附件和满足与车辆输出相关的驾驶者命令。换句话说,向附件提供动力使其保持完全运转而不牺牲车辆输出需求,例如车辆速度和加速需求。
下文描述了附件驱动系统11的优选实施例,包括两个离合器20和22,可以设想没有离合器20,仅采用单个离合器22的替换实施例。根据替换实施例,电动机/发电机32直接与发动机曲柄14相连,并通过离合器22间接与传动装置18连接。
替换实施例中附件驱动系统11包括单个离合器22,在发动机12有燃料供给和正常运转的运行条件下,它的作用与以上描述的优先实施例相似。在正常要求混合动力车辆的发动机12关闭的运行条件下,控制器34切断到发动机12的燃料传输,必要时控制离合器22完全或部分结合,命令电动机/发电机32运转以向附件30,30’和30”提供动力。如果发动机12被关闭,车辆减速停止,离合器22可以分离以使电动机/发电机32与传动装置18断开,控制器34可以命令电动机/发电机32传递额外的动力以使发动机曲柄速度在预定最小值Vm之上,这样附件30,30’和30”就保持完全运转而不影响车辆性能。
平行电力混合动力车辆上驱动附件系统的方法包括以下内容。来自发动机12和/或电动同/发电机32的能量通过传动皮带24传递给附件30,30’和30”。当能量传递给附件30,30’和30”时,发动机12和/或电动机/发电机32受控制,例如由控制器34控制,以保证发动机速度超过预定最小值Vm和附件30,30’和30”保持完全运转。这可以在满足驾驶员需求的同时,通过例如增加发动机12和/或电动机/发电机32的输出,以根据需要合适地驱动实现附件30,30’和30”。
虽然详细描述了实施本发明的最佳实施方式,但在所附权利要求范围内,熟悉本发明的领域的人员将获得实施本发明的各种替换设计和实施例。

Claims (17)

1、一种用于电力混合动力车辆的附件驱动系统,包括:
独立地连接到传动装置上的发动机和电动机/发电机;
设置在发动机和传动装置之间的可选择性地接合的扭矩传递装置,所述扭矩传递装置可被断开,以从传动装置上分离所述发动机和电动机/发电机;
与发动机相连的主动皮带轮;
与附件相连的从动皮带轮;
将所述主动皮带轮和所述从动皮带轮可操作地相连的传动皮带,其在所述主动皮带轮和所述从动皮带轮之间可操作地传递驱动力;
与扭矩传递装置、发动机和电动机/发电机可操作地连接的控制器,所述控制器设置为控制扭矩传递装置、发动机和电动机/发电机,以保证当发动机运转时,由发动机向附件提供合适的动力,以及当发动机没有运转时,由电动机/发电机向附件提供合适的动力。
2、如权利要求1所述的附件驱动系统,其特征在于:发动机包括多个进气阀;多个排气阀;和一曲柄。
3、如权利要求2所述的附件驱动系统,其特征在于:控制器可设置为当附件由电动机/发电机通过发动机曲柄提供动力时,控制器操作进气阀和排气阀以减少曲柄的转动阻力和发动机泵送损失,从而提高附件驱动系统的效率。
4、如权利要求1所述的附件驱动系统,其特征在于:还包括与电动机/发电机可操作地连接的存储装置,所述存储装置设置为当发动机产生多余的动力,或者当回收制动的动力时,储存来自电动机/发电机的能量。
5、如权利要求4所述的附件驱动系统,其特征在于:所述存储装置为电池。
6、如权利要求5所述的附件驱动系统,其特征在于:选择性啮合的扭矩传递装置为离合器。
7、如权利要求6所述的附件驱动系统,其特征在于:可控制所述离合器,以传递足够能量保证向附件提供合适的动力,而不牺牲涉及车辆输出的驾驶员需求。
8、一种用于电力混合动力车辆的附件驱动系统,包括:
独立地连接到传动装置上的发动机和电动机/发电机;
与电动机/发电机可操作地连接的存储装置,所述存储装置设置为当发动机产生多余的动力,或者当回收制动的动力时,储存来自电动机/发电机的能量;
位于发动机和传动装置之间的可选择性啮合的第一扭矩传递装置;
位于电动机/发电机和传动装置之间的可选择性啮合的第二扭矩传递装置;其中所述第二扭矩传递装置可断开以使发动机和电动机/发电机与传动装置分离;
连接到发动机的主动皮带轮;
多个从动皮带轮,每个从动皮带轮与多个附件中的一个相连;
与所述主动皮带轮和所述从动皮带轮可操作地相连的传动皮带,其在所述主动皮带轮和所述多个从动皮带轮之间可操作地传递驱动力;
与扭矩传递装置、发动机和电动机/发电机可操作地连接的控制器,所述控制器设置为控制扭矩传递装置、发动机和电动机/发电机,以保证通过来自发动机和电动机/发电机中的一个传输的能量提供给附件合适的动力,以保证附件受驱动时的速度不低于预定最小速度。
9、如权利要求8所述的附件驱动系统,其特征在于:发动机包括多个进气阀;多个排气阀;和一曲柄。
10、如权利要求9所述的附件驱动系统,其特征在于:控制器可设置为当附件由电动机/发电机通过发动机曲柄提供动力时,控制器操作进气阀和排气阀以减少曲柄的转动阻力和发动机泵送损失,从而提高附件驱动系统的效率。
11、如权利要求10所述的附件驱动系统,其特征在于:所述存储装置为电池。
12、如权利要求11所述的附件驱动系统,其特征在于:所述选择性啮合的第一和第二扭矩传递装置为离合器。
13、如权利要求12所述的附件驱动系统,其特征在于:所述第一和第二离合器是可控制的以传递足够能量,以保证向附件提供合适的动力,而不牺牲涉及车辆输出的驾驶员需求。
14、一种用于平行电力混合动力车辆的附件驱动系统的操作方法,包括:
提供可独立地连接到传动装置上的发动机和电动机/发电机;
提供位于发动机和传动装置之间的可选择性啮合的第一扭矩传递装置,以及位于电动机/发电机和传动装置之间的可选择性啮合的第二扭矩传递装置;
由发动机和电动机/发电机中的一个向多个附件传递能量;
建立预定最小速度,所述多个附件必须以该速度受驱动以保持完全运转;以及,
控制由发动机和电动机/发电机传递的动力,以保证附件受驱动时的速度不低于预定最小速度。
15、如权利要求14所述的方法,其特征在于:还包括当附件由电动机/发电机通过发动机曲柄提供动力时,操作多个进气阀和排气阀以减少曲柄的转动阻力和发动机泵送损失,从而提高附件驱动系统的效率。
16、如权利要求14所述的方法,其特征在于:还包括控制所述可选择性啮合的第一和第二扭矩传递装置,以传递足够能量保证向附件提供合适的动力,而不牺牲与车辆输出相关的驾驶员需求。
17、如权利要求14所述的方法,其特征在于:还包括当发动机产生多余的动力,或者当回收制动的动力时,在电池中储存来自电动机/发电机的能量。
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CN110300676A (zh) * 2016-12-14 2019-10-01 邦迪克斯商用车系统有限责任公司 前端电动发电机系统及混合动力电动车辆操作方法
CN110290967B (zh) * 2016-12-14 2023-06-16 邦迪克斯商用车系统有限责任公司 一种混合动力电动前端电动发电机系统
CN109203973A (zh) * 2017-07-05 2019-01-15 丰田自动车株式会社 串联式混合动力驱动装置
CN109203973B (zh) * 2017-07-05 2021-08-20 丰田自动车株式会社 串联式混合动力驱动装置
CN108528198A (zh) * 2018-03-28 2018-09-14 吉利汽车研究院(宁波)有限公司 混动拓扑系统及汽车
CN112590758B (zh) * 2020-12-17 2022-05-24 浙江吉利控股集团有限公司 一种基于混合动力系统的发动机附件节油控制方法
CN112590758A (zh) * 2020-12-17 2021-04-02 浙江吉利控股集团有限公司 一种基于混合动力系统的发动机附件节油控制方法

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