CN103534114A - 混合动力车辆中的车厢和电池组的热管理 - Google Patents
混合动力车辆中的车厢和电池组的热管理 Download PDFInfo
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Abstract
机动车辆(10)具有电动牵引电机(132)以及向电机提供电力的电池组(108)。电池组包括多个电池单元。热系统包括电池组冷却剂回路(102)、车厢冷却剂回路(104)、电力电子装置冷却剂回路(106)和多个可控阀(VI-V5),这些可控阀由控制器(228)来控制,以通过控制冷却剂在一个或更多个冷却剂回路中的流动路径来选择热模式。
Description
技术领域
本发明涉及混合动力电动车辆、插入式混合动力电动车辆以及电池电动车辆,并且更加具体地涉及车辆车厢和电池组的热管理。
背景技术
具有电动牵引电机的车辆包括通常被称为混合动力电动车辆(“HEV”)、插入式混合动力电动车辆(“PHEV”)以及电池电动车辆(“BEV”)的车辆。这些车辆包括如下的热系统:这些热系统对车辆的车厢进行加热和冷却,对电力推进系统的电力电子部件进行冷却,并对电池组进行加热和冷却。
发明内容
根据本公开的一个方面,机动车辆具有电动牵引电机以及为电机提供电力的电池组。该电池组包括多个电池单元。热系统包括电池组冷却剂回路、车厢冷却剂回路、电力电子装置冷却剂回路以及多个可控阀,这些可控阀由控制器来控制,以通过控制冷却剂在一个或更多个冷却剂回路中的流动路径来选择热模式。当处于第一仅车厢加热模式时,控制器控制可控阀,以使液体冷却剂通过所述电力电子装置冷却剂回路中的电力电子装置并通过所述车厢冷却剂回路中的加热器芯进行循环,以便利用由电力电子装置生成的热来加热车厢。当处于第二仅车厢加热模式时,控制器控制可控阀,以使液体冷却剂通过所述车厢冷却剂回路中的被供能的(energized)冷却剂加热器以及所述加热器芯进行循环,以便利用由冷却剂加热器生成的热来加热车厢。控制器还包括电池组再循环模式,并且当处于第一仅车厢加热模式或第二仅车厢加热模式并处于电池组再循环模式时,控制器控制可控阀,以使在所述电池组冷却剂回路中流动的液体冷却剂再循环,以便使得该液体冷却剂在除了由电池组提供的热输入以外没有任何热输入的情况下流经电池组,以将电池组的电池单元维持在基本相同的温度。
在一方面,控制器包括电池组加热模式,并且当处于所述电池组加热模式时,所述控制器控制所述可控阀以使液体冷却剂通过所述电力电子装置冷却剂回路中的电力电子装置并通过所述电池组进行循环,以利用由所述电力电子装置生成的热来加热所述电池组。
一方面,控制器包括第二电池组加热模式,并且处于所述第二电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述车厢冷却剂回路中的被供能的冷却剂加热器以及所述电池组进行循环,以利用由所述被供能的冷却剂加热器生成的热来加热所述电池组。
在一方面,控制器包括车厢和电池组加热模式,并且处于所述车厢和电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述电力电子装置、所述车厢冷却剂回路中的加热器芯以及所述电池组进行循环,以利用由所述电力电子装置生成的热来加热所述车厢和所述电池组。
一方面,控制器包括第二车厢和电池组加热模式,并且处于所述第二车厢和电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述车厢冷却剂回路中的被供能的冷却剂加热器并通过所述加热器芯和所述电池组进行循环,以利用由所述被供能的冷却剂加热器生成的热来加热所述车厢和所述电池组。
在一方面,控制器包括电池组冷却模式,并且当处于所述第一仅车厢加热模式或所述第二仅车厢加热模式并处于所述电池组冷却模式时,处于所述电池组冷却模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述电池组冷却剂回路中的电池组散热器或通过所述电池组冷却剂回路中的冷却器进行再循环,以冷却所述电池组。
根据下文中提供的详细描述、权利要求以及附图,本公开的教导的可应用性的其他方面将变得明显。应当理解,包括所公开的实施例和其中所参考的附图在内的详细描述本质上仅仅是示例性的、仅为了说明的目的,并且不意在限制本公开的范围、本公开的应用或使用。因此,不脱离本公开的主旨的变型都意在处于本公开的范围内。
附图说明
图1是根据本公开的一个方面的具有多个冷却剂回路的集成式电池热及乘客舒适系统的热系统图;以及
图2是示出了图1的冷却剂回路的加热和冷却模式的状态表。
具体实施方式
根据本公开的一个方面,图1示出了用于混合动力电动车辆、插入式混合动力电动车辆和电池电动车辆的集成式电池热及乘客舒适系统100的热系统图。系统100包括电池组冷却剂回路102、车厢冷却剂回路104、以及也被称为PE冷却剂回路106的电力电子装置冷却剂回路106。当冷却剂在回路中循环时使用术语“冷却剂回路”,其中,在优选实施例中冷却剂为液体冷却剂,例如乙二醇。应当理解,如以下更加详细讨论的,冷却剂回路能够取决于冷却剂是被加热还是被冷却来提供加热和冷却。还应当理解,如以下讨论的,PE冷却剂回路典型地仅被用于对PE冷却剂回路106中的电力电子部件进行冷却。集成式电池热及乘客舒适系统100被包括在车辆10(其通过图1中的虚线10示意性地示出)中。
电池组冷却剂回路102包括向车辆的电动牵引电机132提供电力的电池组108、冷却剂泵110(也被称为电池组冷却剂泵110)、散热器112(被称为电池组散热器112)、冷却器114、可控阀V4以及另一个可控阀V5。
车厢冷却剂回路104包括冷却剂泵116(被称为HVAC(暖通空调)冷却剂泵116)、冷却剂加热器118、加热器芯120、可控阀V1和另一个可控阀V3。冷却剂加热器118可以示意性地为正温度系数(“PTC”)型加热器或电阻式加热器,但也可以是其他类型的加热器。
PE冷却剂回路106包括散热器122(称为PE散热器122)、冷却剂泵124(称为PE冷却剂泵124)、电力电子装置126和可控阀V2。电力电子装置126可以包括诸如DC/DC转换器和逆变器128、功率切换装置130、电动牵引电机132和电池充电器134的部件和系统。电力电子装置126的部件和系统包括冷却剂通道(未示出),冷却剂通过这些通道以冷却相应的部件和系统。
参考电池组冷却剂回路102,电池组108包括冷却剂通道(未示出),冷却剂通过这些通道以加热或冷却电池组108。电池组108的冷却剂入口136耦接至电池组冷却剂泵110的出口138,并且电池组108的冷却剂出口140耦接至可控阀V4的入口142。可控阀V4具有三个出口:第一出口V4-A、第二出口V4-B以及第三出口V4-C。第一出口V4-A耦接至电池组散热器112的冷却剂入口150。电池组散热器112的冷却剂出口152耦接至电池组冷却剂泵110的入口154。可控阀V4的第三出口V4-C耦接至可控阀V5的入口156。
可控阀V5具有三个出口:第一出口V5-A、第二出口V5-B以及第三出口V5-C。第一出口V5-A耦接至电池组冷却剂泵110的入口154。第二出口V5-B耦接至冷却器114的入口164。第三出口V5-C耦接至PE冷却剂回路106的PE冷却剂泵124的入口166。冷却器114的出口168耦接至电池组冷却剂泵110的入口154。
参考PE冷却剂回路106,PE冷却剂回路106的热生成部件被示出为(DC/DC转换器和逆变器128、功率切换装置130、电动牵引电机132以及电池充电器134)串联耦接在PE冷却剂泵124的出口170与可控阀V2的入口172之间。应当理解,这些部件可以在与串联配置相对照的并联配置中或在串联/并联配置中,按照与图1所示的顺序的不同顺序来进行耦接。
可控阀V2具有三个出口:第一出口V2-A、第二出口V2-B以及第三出口V2-C。第一出口V2-A耦接至PE散热器122的入口180。PE散热器122的第一出口182耦接至PE冷却剂泵124的入口166。可控阀V2的第二出口V2-B耦接至车厢冷却剂回路104的HVAC冷却剂泵116的入口184。可控阀V2的第三出口V2-C耦接至电池组冷却剂泵110的入口154。
参考车厢冷却剂回路104,HVAC冷却剂泵116的出口186耦接至冷却剂加热器118的入口188,并且冷却剂加热器118的出口190耦接至可控阀V3的入口192。
可控阀V3具有两个出口:第一出口V3-A和第二出口V3-B。第一出口V3-A耦接至加热器芯120的入口198,并且第二出口V3-B耦接至可控阀V5的入口156。
加热器芯120的出口200耦接至可控阀V1的入口202。
可控阀V1具有两个出口:第一出口V1-A和第二出口V1-B。第一出口V1-A耦接至PE冷却剂回路106的PE冷却剂泵124的入口166,并且第二出口V1-B耦接至HVAC冷却剂泵116的入口184。
可控阀V1、V2、V3、V4和V5中的每一个分别具有控制输入208、210、212、214、216,控制输入208、210、212、214、216分别耦接至控制器228的输出218、220、222、224、226。
图2是示出了针对各种车厢和电池加热模式的可控阀V1、V2、V3、V4和V5的状态的状态表,其中特定车厢加热模式还包括电池冷却模式和电池组再循环模式。每个可控阀的列针对每种模式而示出了耦接至该可控阀的输入口的该可控阀的输出口,其中在状态表的左侧的列示出了各模式。
在模式1下,利用由PE冷却剂回路106的电力电子装置126的部件生成的热来加热车辆的车厢。控制器228控制可控阀V1-V5,使得可控阀V1的入口202耦接至其第一出口V1-A,可控阀V2的入口172耦接至其第二出口V2-B,可控阀V3的入口192耦接至其第一出口V3-A。取决于期望电池组再循环还是冷却,可控阀V4的入口142耦接至可控阀V4的第一出口V4-A或第三出口V4-C,并且可控阀V5的入口156耦接至可控阀V5的第一出口V5-A或V5-C。在该模式下,由PE冷却剂回路106中的电力电子装置126的部件加热的冷却剂流经可控阀V2在HVAC冷却剂泵116的入口184处进入车厢冷却剂回路104中,然后流经可控阀V3到加热器芯120的入口198,然后流经加热器芯120,在加热器芯120处该冷却剂被用于对车辆的车厢进行加热。在加热器芯120的出口200处离开车厢冷却剂回路104的冷却剂流经可控阀V1在PE冷却剂泵124的入口166处进入PE冷却剂回路106中。
在本公开的一个方面,如果不需要加热或冷却电池组108,则通过使用电池组再循环模式而将电池组108的各个单元的温度维持在相同温度。在电池组再循环模式下,冷却剂从电池组冷却剂泵110开始通过电池组108、通过可控阀V4和V5回到电池组冷却剂泵110而在电池组冷却剂回路102中进行再循环,其中除了由电池组108的各个单元提供的热输入以外没有任何热输入。在电池组再循环模式下,可控阀V4的入口142耦接至可控阀V4的第三出口V4-C,并且可控阀V5的入口156耦接至可控阀V5的第一出口V5-A。
在电池组冷却模式下,取决于需要的冷却程度而使冷却剂通过电池组散热器112或冷却器114进行循环。除非冷却要求超过了电池组散热器112的冷却能力,否则将电池组散热器112用于冷却电池组108,而在冷却要求超过了电池组散热器112的冷却能力的情况下,将冷却器114用于冷却电池组108。当电池组散热器112用于冷却电池组108时,可控阀V4的入口142耦接至可控阀V4的第一出口V4-A。由于没有冷却剂将流至可控阀V5,所以可控阀是无动力的(unpowered)。在冷却电池组108的这种模式下,冷却剂从电池组冷却剂泵110流经电池组108,通过可控阀V4至电池组散热器112,并通过电池组散热器112回到电池组冷却剂泵110的入口154。当冷却器114用于冷却电池组108时,可控阀V4的入口142耦接至可控阀V4的第三出口V4-C,并且可控阀V5的入口156耦接至可控阀V5的第二出口V5-B。在该冷却模式下,冷却剂从电池组冷却剂泵110流经电池组108,通过可控阀V4至可控阀V5的入口156,通过可控阀V5至冷却器114,并通过冷却器114回到电池组冷却剂泵110的入口154。应当理解,冷却器114可以示意性地为车辆空调系统的部件,例如蒸发器(evaporator)。
在模式2下,利用由在PE冷却剂回路106中的电力电子部件生成的热来加热电池组108。控制器228控制可控阀V1、V2、V3、V4、V5,使得可控阀V1的入口202耦接至可控阀V1的第二出口V1-B,可控阀V2的入口172耦接至可控阀V2的第三出口V2-C,可控阀V3的入口192耦接至可控阀V3的第一出口V3-A,可控阀V4的入口142耦接至可控阀V4的第三出口V4-C,并且可控阀V5的入口156耦接至可控阀V5的第三出口V5-C。由PE冷却剂回路106中的电力电子部件加热的冷却剂流经可控阀V2在电池组冷却剂泵110的入口154处进入电池组冷却剂回路102,通过电池组108,并且通过可控阀V4在PE冷却剂泵124的入口166处回到PE冷却剂回路106。车厢冷却剂回路104中的冷却剂在车厢冷却剂回路104中的如下再循环路径中流动:该再循环路径从HVAC冷却剂泵116通过冷却剂加热器118(该冷却剂加热器118被断开供能),通过加热器芯120并回到HVAC冷却剂泵116的入口184。
在模式3下,利用由冷却剂加热器118生成的热来加热电池组108。控制器228控制可控阀V2至V5,使得可控阀V2的入口172耦接至可控阀V2的第一出口V2-A,可控阀V3的入口192耦接至可控阀V3的第二出口V3-B,可控阀V4的入口142耦接至可控阀V4的第二出口V4-B,可控阀V5的入口156耦接至可控阀V5的第一出口V5-A。阀V1是无动力的。在该模式下,冷却剂在如下回路中流动:该回路通过HVAC冷却剂泵116、冷却剂加热器118(其被供能),通过可控阀V3至可控阀V5,通过可控阀V5至电池组冷却剂泵110,通过电池组108,通过可控阀V4回到HVAC冷却剂泵116的入口184。冷却剂还从PE冷却剂泵124,通过电力电子装置126的部件,通过可控阀V2至PE散热器122,通过PE散热器122回到PE冷却剂泵124的入口166,而在PE冷却剂回路106中再循环。
在模式4下,利用由冷却剂加热器118生成的热来加热电池组108和车辆车厢。控制器228控制可控阀,使得可控阀V1的入口202耦接至可控阀V1的第一出口V1-A,可控阀V2的入口172耦接至可控阀V2的第三出口V2-C,可控阀V3的入口192耦接至可控阀V3的第一出口V3-A,可控阀V4的入口142耦接至可控阀V4的第二出口V4-5,并且V5是无动力的。在该模式下,冷却剂流经HVAC冷却剂泵116,通过冷却剂加热器118,通过可控阀V3至加热器芯120,通过加热器芯120,通过可控阀V1至PE冷却剂泵124,通过PE冷却剂回路106中的电力电子部件,通过可控阀V2至电池组冷却剂泵110,通过电池组108,并通过可控阀V4回到HVAC冷却剂泵116的入口184。
在模式5下,利用由冷却剂加热器118生成的热来加热车辆车厢。控制器228控制可控阀V1和V3,使得可控阀V1的入口202耦接至可控阀V1的第二出口V1-B,并且可控阀V3的入口192耦接至可控阀V3的第一出口V3-A。在该模式下,冷却剂在车厢冷却剂回路104中再循环。冷却剂从HVAC冷却剂泵116流经冷却剂加热器118(其被供能),通过可控阀V3至加热器芯120,通过加热器芯120,通过可控阀V1回到HVAC冷却剂泵116的入口184。控制器228还取决于期望电池冷却、加热(利用由PE冷却剂回路126的电力电子装置126的部件生成的热)还是再循环而控制可控阀V2、V4和V5。在这一点上,取决于期望电池组再循环还是冷却,以及在期望电池冷却的情况下取决于是使用电池组散热器112还是冷却器114来冷却电池组108,控制器228如上那样关于模式1所讨论的那样控制可控阀V4和V5。
在模式6下,利用由PE冷却剂回路106的电力电子装置126的部件生成的热来加热电池组108和车辆车厢。控制器228控制可控阀V1至V4,使得可控阀V1的入口202耦接至可控阀V1的第一出口V1-A,可控阀V2的入口210耦接至可控阀V2的第三出口V2-C,可控阀V3的入口192耦接至可控阀V3的第一出口V3-A,并且可控阀V4的入口142耦接至可控阀V4的第二出口V4-B。由于在该模式下没有冷却剂流经V5,所以V5是无动力的。在该模式下,冷却剂流经PE冷却剂泵124,通过PE冷却剂回路106中的电力电子装置126的部件,在这些部件处冷却剂被加热。加热后的该冷却剂流经可控阀V2至电池组冷却剂泵110,通过电池组冷却剂泵110,通过电池组108,通过可控阀V4至HVAC冷却剂泵116,通过冷却剂加热器118(其被断开供能),通过可控阀V3至加热器芯120,通过加热器芯120,通过可控阀V1回到PE冷却剂泵124的入口166。
应当理解,存在可被用于提供电池冷却剂回路102、车厢冷却剂回路104和PE冷却剂回路106的各种配置的阀以及各种类型的阀,并且对电池冷却剂回路102、车厢冷却剂回路104以及PE冷却剂回路106的以上描述是示例性的且不是穷尽性的。例如,阀V1至V5可以为比例阀,或是被调节的,以在它们的多个相应出口之间切换它们的相应入口,以便以任意特定模式提供从它们的相应入口到它们的多个出口的流。
Claims (8)
1.一种机动车辆中的热系统,所述机动车辆具有电动牵引电机和向所述电机提供电力的电池组,所述电池组包括多个电池单元,所述热系统包括:
a.电池组冷却剂回路、车厢冷却剂回路、电力电子装置冷却剂回路以及多个可控阀,所述多个可控阀由控制器来控制,以通过控制冷却剂在所述冷却剂回路中的一个或更多个中的流动路径来选择热模式;以及
b.当处于第一仅车厢加热模式时,所述控制器控制所述可控阀以使液体冷却剂通过所述电力电子装置冷却剂回路中的电力电子装置并通过所述车厢冷却回路中的加热器芯进行循环,以利用由所述电力电子装置生成的热来加热所述车厢;当处于第二仅车厢加热模式时,所述控制器控制所述可控阀以使液体冷却剂通过所述车厢冷却剂回路中的被供能的冷却剂加热器以及所述加热器芯进行循环,以利用由所述冷却剂加热器生成的热来加热所述车厢;以及所述控制器还包括电池组再循环模式,并且当处于所述第一仅车厢加热模式或所述第二仅车厢加热模式并且处于所述电池组再循环模式时,所述控制器控制所述可控阀以使在所述电池组冷却剂回路中流动的液体冷却剂再循环,使得该液体冷却剂在除了由所述电池组提供的热输入以外没有任何热输入的情况下流经所述电池组,以将所述电池组的电池单元维持在基本相同的温度。
2.根据权利要求1所述的热系统,其中,所述控制器包括电池组加热模式,处于所述电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述电力电子装置冷却剂回路中的电力电子装置并通过所述电池组进行循环,以利用由所述电力电子装置生成的热来加热所述电池组。
3.根据权利要求2所述的热系统,其中,所述控制器包括第二电池组加热模式,处于所述第二电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述车厢冷却剂回路中的被供能的冷却剂加热器以及所述电池组进行循环,以利用由所述被供能的冷却剂加热器生成的热来加热所述电池组。
4.根据权利要求3所述的热系统,其中,所述控制器包括车厢和电池组加热模式,处于所述车厢和电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述电力电子装置、所述车厢冷却剂回路中的加热器芯以及所述电池组进行循环,以利用由所述电力电子装置生成的热来加热所述车厢和所述电池组。
5.根据权利要求4所述的热系统,其中,所述控制器包括第二车厢和电池组加热模式,处于所述第二车厢和电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述车厢冷却剂回路中的被供能的冷却剂加热器并通过所述加热器芯和所述电池组进行循环,以利用由所述被供能的冷却剂加热器生成的热来加热所述车厢和所述电池组。
6.根据权利要求1所述的热系统,其中,所述控制器包括车厢和电池组加热模式,处于所述车厢和电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述电力电子装置、所述车厢冷却剂回路中的加热器芯以及所述电池组进行循环,以利用由所述电力电子装置生成的热来加热所述车厢和所述电池组。
7.根据权利要求6所述的热系统,其中,所述控制器包括第二车厢和电池组加热模式,处于所述第二车厢和电池组加热模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述车厢冷却剂回路中的被供能的冷却剂加热器并通过所述加热器芯和所述电池组进行循环,以利用由所述被供能的冷却剂加热器生成的热来加热所述车厢和所述电池组。
8.根据权利要求1所述的热系统,其中,所述控制器包括电池组冷却模式,当处于所述第一仅车厢加热模式或所述第二仅车厢加热模式并处于所述电池组冷却模式时,处于所述电池组冷却模式时的所述控制器控制所述可控阀以使液体冷却剂通过所述电池组冷却剂回路中的电池组散热器或通过所述电池组冷却剂回路中的冷却器进行再循环,以冷却所述电池组。
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2012
- 2012-02-27 WO PCT/US2012/026737 patent/WO2012161819A1/en active Application Filing
- 2012-02-27 CA CA 2828708 patent/CA2828708A1/en not_active Abandoned
- 2012-02-27 CN CN201280011582.2A patent/CN103534114A/zh active Pending
- 2012-02-27 EP EP12718445.5A patent/EP2681062A1/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
US8753762B2 (en) | 2014-06-17 |
WO2012161819A1 (en) | 2012-11-29 |
EP2681062A1 (en) | 2014-01-08 |
US20120225341A1 (en) | 2012-09-06 |
CA2828708A1 (en) | 2012-11-29 |
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