The embodiment of the invention provides a battery pack temperature control method and system and an electric vehicle. According to the battery pack temperature control method, a third temperature interval and a fourth temperature interval are determined according to parameters of a battery pack, the detected temperature of the battery pack, the detected environment temperature, a preset first temperature interval and a preset second temperature interval, and whether cooling is started or not and the starting cooling level are determined by combining the temperature of the battery pack. Different cooling levels correspond to different cooling modes, the cooling modes are diversified, the battery pack temperature control method solves the problem that an existing control method is single in heat dissipation mode, the problem that an existing control method with a single cooling level is low in heat dissipation rate is solved, the heat dissipation efficiency of the battery pack is improved, the safety performance of the battery pack is guaranteed, and the service life of the battery pack is prolonged.

    本申请实施例提供了一种电池包温度的控制方法、系统及电动汽车。该电池包温度的控制方法,根据电池包的参数、检测到的电池包的温度、检测到的环境温度、预设的第一温度区间以及预设的第二温度区间,确定第三温度区间和第四温度区间,结合电池包的温度确定是否启动冷却以及确定启动的冷却级别。不同的冷却级别对应不同的冷却方式,冷却方式多样,本申请实施例的电池包温度的控制方法解决了现有控制方法散热模式单一,避免了现有单一冷却级别的控制方法存在散热速率慢的问题,提高了电池包的散热效率,保障了电池包的安全性能,延长了电池包的寿命。


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    Title :

    Battery pack temperature control method and system and electric vehicle


    Additional title:

    电池包温度的控制方法、系统及电动汽车


    Contributors:
    LUO SHI (author)

    Publication date :

    2021-10-12


    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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