The invention provides a power battery cooling method and system, a storage medium and an automobile. The power battery cooling method comprises the steps that the inlet water temperature of a radiator in a motor cooling loop is obtained; based on the inlet water temperature, utilizing a radiator model to estimate the outlet water temperature of the radiator; acquiring a target cooling temperature of a battery inlet; the difference value between the target cooling temperature and the water temperature of the outlet of the radiator is calculated; and if the difference value is larger than or equal to a certain threshold value and the battery temperature is smaller than a certain value, the control valve conveys cooling water in the motor cooling loop to the battery cooling loop to cool the battery. According to the method, the outlet water temperature of the radiator is accurately estimated through the inlet water temperature of the radiator and the radiator model, radiating system feedback is formed, a radiator outlet water temperature sensor is omitted, cost is reduced, efficiency is improved, and the cooling effect of the power battery is optimized.

    本发明提供了一种动力电池冷却方法、系统、存储介质及汽车,该动力电池冷却方法包括:获取电机冷却回路内散热器的入口水温;基于所述入口水温利用散热器模型预估所述散热器的出口水温;获取电池入口的目标冷却温度;计算所述目标冷却温度与散热器出口水温之间的差值;若所述差值大于等于一定的阈值且电池温度小于一定值,则控制阀将所述电机冷却回路内的冷却水输至电池冷却回路对电池进行冷却。在本发明中通过散热器的入口水温以及散热器模型对散热器的出口水温进行准确预估并形成散热系统反馈,取消散热器出口水温传感器,降本增效并优化动力电池冷却的效果。


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    Title :

    Power battery cooling method and system, storage medium and automobile


    Additional title:

    动力电池冷却方法、系统、存储介质及汽车


    Contributors:
    HUANG RONG (author) / HIGASHINAGA HIROSHI (author) / TANG RUQI (author) / LIU ZELIAN (author) / WU ZHIYONG (author)

    Publication date :

    2023-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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