The invention relates to the technical field of batteries, in particular to a battery pack equalization method and device, a vehicle and a storage medium, and the method comprises the steps: judging whether a current battery pack meets a preset offline equalization condition or not; if the current battery pack meets the preset offline equalization condition, determining a to-be-equalized target battery cell in the current battery pack, equalization time of the target battery cell and periodic wake-up duration; balancing the target battery cell according to the balancing time of the target battery cell, controlling the battery management system to enter a sleep mode, obtaining the duration of the battery management system entering the sleep mode, and awakening the battery management system when the duration reaches the periodic awakening duration, and re-judging whether the current battery pack meets the preset offline balance condition or not. Therefore, the problems that the target battery cell needing to be equalized cannot be accurately judged and the balance between the consistency of the single batteries and the relatively high energy of the vehicle cannot be maintained in the prior art are solved, and the equalization target is more accurate.

    本申请涉及电池技术领域,特别涉及一种电池包的均衡方法、装置、车辆及存储介质,其中,方法包括:判断当前电池包是否满足预设的离线均衡条件;若当前电池包满足预设的离线均衡条件,则确定当前电池包中待均衡的目标电芯、目标电芯的均衡时间和周期性唤醒时长;根据目标电芯的均衡时间对目标电芯进行均衡,并控制电池管理系统进入休眠模式,且获取电池管理系统进入休眠模式的持续时长,并在持续时长达到周期性唤醒时长时,唤醒电池管理系统,并重新判断当前电池包是否满足预设的离线均衡条件。由此,解决相关技术无法精准判断需要均衡的目标电芯,无法维持电池单体一致性和车辆较高能量之间的平衡的问题,均衡目标更准确。


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    Title :

    Balancing method and device of battery pack, vehicle and storage medium


    Additional title:

    电池包的均衡方法、装置、车辆及存储介质


    Contributors:
    YANG SHUAI (author) / ZHANG RONGJIA (author) / ZHANG LIN (author) / CHEN XIAO (author) / ZHOU YUFENG (author)

    Publication date :

    2023-04-18


    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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