The invention relates to a battery temperature control method and device, and an automobile. The method comprises steps of the temperatures of multiple test points of a battery in a discharging mode being obtained to determine the average battery temperature, the maximum battery temperature and the minimum battery temperature; determining a battery temperature change value according to the average battery temperature and the real-time battery remaining capacity; determining a first temperature threshold value and a second temperature threshold value according to the battery temperature change value, the maximum battery temperature and the minimum battery temperature; acquiring first real-time discharge power; determining a first real-time battery temperature according to the first real-time discharge power; and when the size relation between the first real-time battery temperature and the first temperature threshold value or the second temperature threshold value is judged, a temperature control device being controlled to cool or heat the battery. The method is advantaged in that the threshold range of the battery temperature is pre-judged based on different discharge powers, so the battery temperature is controlled within an ideal range, unnecessary energy consumption is reduced, and the endurance mileage of the electric vehicle is effectively prolonged.

    本发明涉及一种电池温度控制方法、装置及汽车,所述方法包括:获取电池在放电模式下的多个测试点温度以确定出平均电池温度、最大电池温度和最小电池温度;根据所述平均电池温度和所述实时电池剩余电量确定出电池温度变化值;根据所述电池温度变化值、所述最大电池温度和所述最小电池温度确定出第一温度阈值和第二温度阈值;获取第一实时放电功率;根据所述第一实时放电功率确定出第一实时电池温度;判断第一实时电池温度与所述第一温度阈值或所述第二温度阈值之间的大小关系时,控制温控装置对电池进行冷却或者加热。基于不同放电功率预判电池温度的阈值范围,使得电池温度控制在理想范围内,减少产生不必要的能耗,有效延长电动汽车的续航里程。


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    Title :

    Battery temperature control method and device, and automobile


    Additional title:

    一种电池温度控制方法、装置及汽车


    Contributors:
    WANG FANGFANG (author) / ZHAO YIFENG (author) / DUAN PENG (author) / ZHAI YIMING (author) / HUO YANHONG (author) / LIU GANG (author) / CHEN YUXING (author) / ZHANG JUNJIE (author) / SHAO JINGJING (author) / YUE XIANG (author)

    Publication date :

    2021-09-21


    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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