The invention provides a battery pack equalization method and device. The method comprises the steps of: acquiring the power-off dormancy shelving time of a battery pack when a whole vehicle is powered on; determining whether the battery pack needs to be equalized according to the power-off dormancy shelving time and the current condition information of the battery pack; if the battery pack needsto be equalized, determining a target battery needing to be equalized in the battery pack and an estimated equalization time corresponding to the target battery; and equalizing the target battery according to the corresponding estimated equalization time. Therefore, according to the application, equalization is not carried out once at set intervals after the vehicle is shut down, however the battery pack is equalized only when the battery pack is determined to be equalized according to the power-off dormancy shelving time of the battery pack and the condition information of the battery pack itself after the whole vehicle is powered on, so that voltage shortage of the battery pack is avoided by the equalization mode.

    本申请提供了一种电池组的均衡方法及装置,其中,方法包括:当整车上电时,获取电池组的下电休眠搁置时间;根据下电休眠搁置时间和电池组自身的当前状况信息,确定是否需要对电池组进行均衡;若需要对电池组进行均衡,则确定电池组中需要均衡的目标电池和目标电池对应的预计均衡时间;对目标电池按其对应的预计均衡时间进行均衡。由此可见,本申请并不是在车辆熄火后每隔一段时间进行一次均衡,而是在整车上电后,根据电池组的下电休眠搁置时间和电池组自身的状况信息确定需要对电池组进行均衡时,才对电池组进行均衡,这种均衡方式使得电池组不会出现欠压的情况。


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    Title :

    Battery pack equalization method and device


    Additional title:

    一种电池组的均衡方法及装置


    Contributors:
    LI YIPING (author) / WU JUN (author) / PENG SHIMING (author)

    Publication date :

    2020-06-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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