The invention discloses a power battery temperature control method, system and device and a vehicle. The method comprises the steps that the temperature of a water outlet and/or a water inlet of a cooling plate is collected, and the temperature of a battery cell in a battery pack is collected; under the heating working condition of the power battery cell, the electromagnetic valve is switched to a first position, and the liquid path flow direction of the cooling liquid is controlled to be that the two side flow channels are firstly arranged and then the middle flow channel is arranged; and under the power battery cell cooling working condition, the electromagnetic valve is switched to the second position, and the liquid path flow direction of the cooling liquid is controlled to be the middle flow channel and then the two side flow channels. According to the power battery temperature control device and the vehicle, the temperature of the battery cells can be dynamically controlled according to the temperature of the water outlet and the inlet of the cooling plate and the temperature of the battery cells in the battery pack in combination with the heating working condition and the cooling working condition. And the flow direction of the liquid path of the cooling liquid can be dynamically controlled by combining the heating working condition and the cooling working condition, so that the service life of the battery cell is prolonged.

    本发明公开了一种动力电池温度控制方法、系统、装置和车辆,方法步骤包括:采集冷却板出水口和/或入水口处的温度,采集电池包内的电芯温度;在动力电池电芯加热工况下,切换电磁阀至第一位置,控制冷却液的液路流向为:先两侧流道,后中间流道;在动力电池电芯冷却工况下,切换电磁阀至第二位置,控制冷却液的液路流向为:先中间流道,后两侧流道。本发明能够根据冷却板出水口、入口处以及电池包内电芯的温度,结合加热工况和冷却工况对电池电芯的温度进行动态控制,本发明提供的动力电池温度控制装置和车辆,无论在炎热的夏季还是寒冷的冬季,均能够结合加热工况和冷却工况对冷却液的液路流向进行动态控制,延长了电芯的寿命。


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    Title :

    Power battery temperature control method, system and device and vehicle


    Additional title:

    一种动力电池温度控制方法、系统、装置和车辆


    Contributors:
    GENG YUMING (author) / SUN HUANLI (author) / SUN SHIJIE (author) / ZHAO MINGHAN (author) / LIU JIAXIN (author) / CAO HAIYUE (author)

    Publication date :

    2023-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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



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