The method for preventing the supercooling control of the battery cooler comprises the following steps: acquiring a cooling request; under the condition that the cooling requests comprise the power battery cooling request and the passenger compartment cooling request at the same time, cooling loop state information of the power battery and the temperature of an evaporator are obtained; judging whether the cooling loop state information of the power battery meets a preset condition or not; under the condition that the cooling loop state information of the power battery meets the preset condition and the temperature of the evaporator is lower than a first threshold value, the rotating speed of a compressor is controlled to be reduced; and when the state information of the cooling loop of the power battery does not meet the preset condition and the temperature of the evaporator is lower than a second threshold value, the rotating speed of the compressor is controlled to be zero. Through the control method based on the state information of the cooling loop of the power battery and the temperature of the evaporator as judgment conditions, the working condition that the cooling capacity of the battery cooler is reduced due to evaporator freezing, compressor faults or compressor stopping can be avoided.

    本申请的防止电池冷却器过冷控制的方法包括:获取冷却请求;在冷却请求同时包括动力电池冷却请求和乘员舱冷却请求的情况下,获取动力电池的冷却回路状态信息和蒸发器的温度;判断动力电池的冷却回路状态信息是否满足预设条件;在动力电池的冷却回路状态信息满足预设条件、蒸发器的温度低于第一阈值的情况下,控制减小压缩机的转速;在动力电池的冷却回路状态信息不满足预设条件、蒸发器的温度低于第二阈值的情况下,控制压缩机的转速为零。通过基于动力电池的冷却回路状态信息和蒸发器的温度为判断条件的控制方法,可避免出现蒸发器冻结、压缩机故障或因压缩机停止导致的电池冷却器的冷却能力降低的工况。


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    Title :

    Method and device for preventing supercooling control of battery cooler


    Additional title:

    一种防止电池冷却器过冷控制的方法及装置


    Contributors:
    LIU HUAN (author) / ZHENG GUOYONG (author) / WANG SHOUJUN (author)

    Publication date :

    2024-04-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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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