The invention relates to the technical field of battery management, and particularly discloses a power battery equalization pre-over-temperature protection method, device and equipment and a storage medium. The method comprises the following steps: acquiring a first real-time temperature of an equalization resistor corresponding to each battery cell which is started in an equalization manner in the power battery; whether the highest real-time temperature in the first real-time temperatures exceeds a first preset temperature threshold value or not is judged; and if yes, limiting the number of the battery cells which are started in a balanced manner so as to carry out over-temperature protection. According to the method, when the voltage difference of the battery cells in the power battery is large and equalization is started to cause fast temperature rise, the number of the battery cells which are started to be equalized can be limited in advance, equalization of the whole power battery is not directly stopped, the equalization effect of the power battery is improved, the anchoring risk of the power supply tail end of the power battery caused by the large voltage difference of the battery cells is avoided, and the service life of the power battery is prolonged. The service life of the power battery is prolonged.

    本发明涉及电池管理技术领域,具体公开了一种动力电池均衡预过温保护方法、装置、设备及存储介质。该方法包括:获取动力电池中均衡开启的各电芯对应的均衡电阻的第一实时温度;判断各所述第一实时温度中的最高实时温度是否超过第一预设温度阈值;若是,则限制均衡开启的电芯数量,以进行过温保护。该方法在动力电池中电芯压差较大启动均衡而导致温升较快时,能够提前限制开启均衡的电芯数量,并不直接停止整个动力电池的均衡,改善动力电池的均衡效果,避免因为电芯压差较大而导致动力电池的供电末端出现的抛锚风险,提升动力电池的使用寿命。


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    Title :

    Power battery equalization pre-over-temperature protection method, device and equipment and storage medium


    Additional title:

    动力电池均衡预过温保护方法、装置、设备及存储介质


    Contributors:
    XIONG XIAOWEI (author) / XIA KAI (author) / FENG PEIYUN (author) / LI KANG (author) / SONG QINGGUO (author)

    Publication date :

    2024-04-26


    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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