CN104442285A - 充电器冷却空气源选择方法 - Google Patents

充电器冷却空气源选择方法 Download PDF

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CN104442285A
CN104442285A CN201410489707.3A CN201410489707A CN104442285A CN 104442285 A CN104442285 A CN 104442285A CN 201410489707 A CN201410489707 A CN 201410489707A CN 104442285 A CN104442285 A CN 104442285A
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trapdoor
extraneous air
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托马斯·布莱克本
莫尼卡·杜布瓦
詹姆斯·乔治·格比
肯恩·J·杰克逊
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Ford Global Technologies LLC
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Abstract

一种充电器冷却空气源选择方法，包括：通过开启车辆外部空气通气门和吸引外部空气穿过外部空气通气门来冷却车辆电池充电器；确定外部空气通气门是否即将关闭；并且如果外部空气通气门不会关闭，通过确保车内再循环门处于开启状态来建立并保持车厢内部正气压。

Description

充电器冷却空气源选择方法
技术领域
本发明的说明性实施例总体上涉及外部空气(OSA)通气系统，该系统通过促进外部冷空气向车辆内部流动来冷却车辆内部的电池充电器。更具体地，本发明的说明性实施例还涉及一种充电器冷却空气源选择方法，该方法通过促进车内正气压来防止在OSA通气系统没有关闭的情况下外部空气的流入。
背景技术
PHEV(插电式混合动力车)中的高电压充电器会变得足够热致使车辆内部车厢空气在启动时车辆内部温度的基础上变暖。以循环内部空气来冷却充电器几个小时，车内空气温度会升高，致使充电器效率低下。
当充电器需要冷却并且车内空气温度高于规定温度水平时，外部空气通过车辆外部空气(OSA)通气系统向车辆内部的引入会有利于充电器的冷却。然而，在一些实施例中，OSA通气系统可能会无意地保持开启。因此，期望在OSA通气系统未关闭的情况下促进车内正气压以防止外部空气的流入。
因此，一种促进车内正气压以防止在OSA通气系统未关闭的情况下外部空气的流入的充电器冷却空气源选择方法对于一些实际应用来说是需要的。
发明内容
本发明的说明性实施例总体上涉及一种充电器冷却空气源选择方法，该方法促进车内正气压，以防止在OSA通气系统未关闭的情况下外部空气的流入。该方法的说明性实施例包括：通过开启车辆外部空气通气门和吸引外部空气穿过外部空气通气门来冷却车辆电池充电器；确定外部空气通气门是否即将关闭；并且如果外部空气通气门不会关闭，通过确保车内再循环门处于开启状态来建立并保持车厢内正气压。
附图说明
现在参考附图通过示例的方式将描述本发明的说明性实施例，附图中：
图1是充电器冷却空气源选择方法的说明性实施例中示例性车辆外部空气(OSA)通气系统的框图。
图2是充电器冷却空气源选择方法的说明性实施例中说明车辆外部空气通过OSA通气系统向车辆内部常规流动的车辆俯视图。
图3是充电器冷却空气源选择方法的说明性实施例中说明车辆外部空气通过OSA通气系统向车辆内部常规流动的车辆侧视图
图4是充电器冷却空气源选择方法的说明性实施例中说明在OSA通气系统无意地保持开启的情况下维持车内正气压的车辆俯视图。
图5是充电器冷却空气源选择方法的说明性实施例中说明在OSA通气系统无意地保持开启的情况下维持车内正气压的车辆侧视图。
图6是充电器冷却空气源选择方法的说明性实施例的流程图。以及
图7是依照充电器冷却空气源选择方法的说明性实施例中示例性开启OSA通气系统的方法的流程图。
具体实施方式
以下的具体实施方式实际上仅为示例性的，其目的并非限制描述的实施例或描述的实施例的应用和用途。这里所用的词“示例性的”或“说明性的”意为“用作示例，实例或例证”。这里作为“示例性的”或“说明性的”进行描述的任何实施方式并不一定解释为是比其它实施方式优选或有利。下述所有实施方式均为供本领域的技术人员实践本发明的示例性实施方式，并非意在限制权利要求的范围。而且，这里所述的说明性实施例并非详尽无遗，并且除这里所述的以及落入权利要求范围内的实施例或实施方式以外的实施例或实施方式也是可行的。此外，并不存在受前述技术领域、背景技术、发明内容或下述具体实施方式中提出的任何明示或暗示的理论的约束的意图。
首先参照图1-5，充电器冷却空气源选择方法的说明性实施例中的车辆100如图所示。车辆100可以拥有车辆前端101，车辆后端102，车厢103以及车厢103内部的车辆仪表盘104。再循环门108可以包括在车辆仪表盘104内。响应于车辆气候控制风扇(未显示)的运行，再循环门108可以促进外部空气109(图4)向车厢103内部选择性的引入，或车厢103内部空气134的再循环，例如以传统的方式。在示例性操作中，再循环门108在湿热环境中当车辆100的操作者在车辆气候控制系统中选择“MAX A/C”(最大空气调节)档时是关闭的，因此车厢内空气再循环以减小蒸发器的热负荷并更快地冷却车厢103。如图3和图4所示，电池冷却风扇130可以使电池冷却空气131从车厢103内部通过车辆电池122实现循环(图1)。
外部空气(OSA)通气系统112可以装配在车辆100的车辆后端102。如图1所示，OSA通气系统112可以包含OSA通气门113，该OSA通气门113通过OSA通气门驱动器114的操作选择性地开启或关闭。风扇进气导管115可以从OSA通气门113引出。OSA风扇116可以装配在风扇进气导管115内。风扇出气导管117以从OSA风扇116引出。用于车辆电池122的电池充电器120设置为与风扇出气导管117处于导热接触中。如图2-5所示，抽气机132可以装配在车辆100的车辆后端102，以将内部空气134从车厢103抽出。
外部空气通气系统112可以被设置为保持OSA通气门处于关闭状态，除非电池充电器120需要冷却并且车厢内温度超过预设温度。如图1所示，当OSA通气门113由OSA通气门驱动器114开启时，OSA风扇116吸引外部空气118穿过风扇进气导管115与风扇出气导管117并进入车厢103。如图2和3所示，流入的外部空气118冷却电池充电器至可以确保电池充电器120最佳运行的目标温度范围。当冷却电池充电器至目标温度范围时，OSA通气门驱动器114会关闭OSA通气门113并且OSA风扇116的进一步运行会被终止。贯穿外部空气通气系统112运行的始终，再循环门108会保持关闭以利于空气在车厢103内的再循环。抽气机会排除车厢103的内部空气134。
根据充电器冷却空气源选择方法，车载控制器可以被设置为，在OSA通气门113在冷却电池充电器120后无意地未关闭的情况下，操控再循环门108、车辆气候控制风扇(未显示)以及外部空气通气系统112进入错误缓解模式。错误缓解模式保持车厢103内正气压126，并且，若再循环门108处于关闭状态则开启再循环门108，若再循环门108处于开启状态则防止再循环门108关闭，并运行车辆气候控制风扇(未显示)。相应地，如图4和5所示，外部空气109通过开启的再循环门108流入车辆100。流入的外部空气109保持车厢103内部正气压126，促进内部空气134从车厢103通过OSA通气门113的流动。车厢103内的正气压126阻止废气和湿热空气从车辆100后方区域通过OSA通气门113进入车厢103。由于同样的热环境下，冷却电池充电器120的需求以及在车辆气候控制系统中“MAX A/C”档设置下运行车辆气候控制的需求很有可能会同时发生，因此OSA通气门113被开启以及再循环门108被关闭的可能性很高。
接下来参照图6，充电器冷却空气源选择方法的说明性实施例的流程图如图所示。再循环门和外部空气通气系统的常规运行如框602-618所示。再循环门和外部空气通气系统的缓解运行如框620-628所示。在框602中，通过电池充电器的运行可以开始对车辆电池进行充电。在框604中，冷却充电器的充电器风扇可以被启动。在框606中，将对车厢内温度是否高于预设温度做出判定。如果是，则外部空气通气系统的OSA通气门可以被开启用以冷却车厢内部。如果不是，对车辆电池的充电是否完成做出判定。
根据在框610中车辆电池的充电状态，OSA通气门可以在框612中关闭。在框614中，可以对OSA通气门是否关闭进行检验。如果OSA通气门在框614中关闭，则OSA通气门可在框618中断电。如果OSA通气门在框614中没有关闭，则在框616中会设置错误标记，并且OSA通气门在框618中断电。
当OSA通气门在框614中关闭且框616中设置错误标记时，在框620-628中实行再循环门和外部空气通气系统的缓解运行。在框620中，车辆点火开关接通。在框622中，由框616设置的OSA错误标记被检验。在框624中，将对是否设置OSA错误标记进行确认。如果是，则在框626中，一条指令将被传输至车辆气候控制系统用以抑制前再循环门的关闭以及在前再循环门关闭的情况下开启前再循环门。相应地，车厢内正气压升高以致空气不能通过开启的OSA通气门进入车厢内部。如果在框624中没有OSA设置错误标记，则将在框628中实行再循环门的常规运行。
接下来参照图7，依照充电器冷却空气源选择方法的说明性实施例中示例性开启OSA通气系统的方法的流程图如图所示。在框702中，将对电池充电器是否接通进行判定。如果对该询问的回答为是，将对电池充电器温度是否超过会损坏电池充电器的温度进行判定。如果不是，则该方法返回框702。如果对框704的询问的回答为是，则外部空气通气系统的OSA通气门将在框706中开启。在框708中，将对OSA通气门是否开启进行判定。如果OSA通气门没有开启，则在框710中会再次尝试开启OSA通气门。在框712中，将对OSA通气门开启失败是否发生超过三次循环进行判定。如果没有，则该方法返回至框706。如果是，则将在框714中设置为门故障，且该方法返回至框702。
如果对框708中询问的回答为OSA通气门已开启，则将在框716中对充电是否完成进行判定。如果不是，则该询问将在框716中继续。如果是，则OSA通气门将在框718中被关闭，且该方法返回至框702。
尽管针对特定的示例性实施例对本发明的实施例进行了描述，但应理解的是，具体的实施例是说明性的目的，并非进行限制，因为本领域的技术人员将想到其它变化形式。

Claims (8)

1.一种充电器冷却空气源选择方法，其特征在于，包括：通过开启车辆内的外部空气通气门和吸引外部空气穿过外部空气通气门来冷却车辆电池充电器；确定外部空气通气门是否即将关闭；以及如果外部空气通气门不会关闭，则通过确保车辆内的再循环门的开启状态来建立并保持车厢内部正气压。
2.根据权利要求1所述的方法，其特征在于，进一步地包括：通过运行外部空气风扇来吸引外部空气穿过外部空气通气门。
3.根据权利要求1所述的方法，其特征在于，通过车辆内的再循环门的开启来建立车辆车厢内部的正气压，进一步地包括运行车辆气候控制风扇。
4.根据权利要求1所述的方法，其特征在于，冷却车辆电池充电器包括，如果车辆的车厢温度高于预设温度则开启车辆内的外部空气通气门。
5.根据权利要求1所述的方法，其特征在于，吸引外部空气穿过外部空气通气门包括，通过设置为与车辆电池充电器进行导热接触的风扇出气导管来吸引外部空气穿过外部空气通气门。
6.根据权利要求1所述的方法，其特征在于，确保车辆内的再循环门的开启状态包括从关闭状态开启再循环门。
7.根据权利要求1所述的方法，其特征在于，确保车辆内的再循环门的开启状态包括保持再循环门处于开启的状态。
8.根据权利要求1所述的方法，其特征在于，进一步包括从车厢中排出内部空气。
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