The invention discloses a control method and a control system for delaying the thermal diffusion of a power battery pack. The control method comprises the following steps of acquiring the running state of a single battery of the power battery pack; judging whether a single battery subjected to thermal runaway exists or not according to the running state; if the thermal runaway single batteries exist, obtaining the state of the power battery pack; and if it is recognized that the power battery pack is in a power-off state, controlling the power supply state of a cooling system used for coolingthe power battery pack, so that the cooling system is in a circulating state. According to the control method for delaying the thermal diffusion of the power battery pack, when any single battery in the power battery pack is abnormally overheated, the heat generated by the thermal runaway single batteries can be diffused to other single batteries, so that the temperatures of the thermal runaway single batteries and the adjacent single batteries are reduced, the thermal runaway of the adjacent single batteries is delayed or prevented, enough emergency time is provided for a user, and the use safety of the power battery pack is improved.

    一种延缓动力电池包热扩散的控制方法和控制系统,所述控制方法包括:获取所述动力电池包的单体电池的运行状态;根据所述运行状态判断是否存在发生热失控的单体电池;若存在热失控的单体电池,获取所述动力电池包的状态;识别所述动力电池包处于断电状态,则控制用于对所述动力电池包进行冷却的冷却系统的供电状态,以使所述冷却系统处于循环状态。本申请的延缓动力电池包热扩散的控制方法,可在动力电池包内的任意一个单体电池发生异常过热时,可将热失控单体电池产生的热量扩散至其他单体电池,降低热失控单体电池及与之相邻的单体电池的温度,延缓或防止相邻单体电池也发生热失控,为用户提供足够的应急时间,提升动力电池包的使用安全性。


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    Title :

    Control method and control system for delaying thermal diffusion of power battery pack


    Additional title:

    延缓动力电池包热扩散的控制方法和控制系统


    Contributors:
    YANG ZHENYU (author) / WANG SEN (author) / DUAN JINJIE (author) / XU XIAOFENG (author)

    Publication date :

    2020-07-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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