The invention relates to a low-temperature heating control method for a power battery. The low-temperature heating control method comprises the following steps: judging that the current state of an automobile is an initial power-on state, a power-off state, a dormant state or a charging state; according to whether the current temperature and the SOC value of the battery pack exceed the set low-temperature threshold value and the SOC threshold value or not, whether the PTC is started to heat the battery pack or not is judged; according to the weather forecast, whether a time period needing self-heating exists in a future set time length is judged, and if yes, temperature control time T1 hours capable of being started is calculated according to the current SOC value and recommended to a user; receiving time for starting a battery pack temperature control mode preset by a user, and automatically starting the battery pack temperature control mode when the time is met; receiving a heating instruction remotely sent by a user in real time, and heating the battery pack according to the heating instruction; whether the current temperature of the battery pack is lower than a set low-temperature threshold value or not is judged, if yes, the battery pack is heated through a charging gun, and if not, a charging mode is started; and the driving range of the automobile and the service life of the battery pack can be prolonged.

    本发明涉及一种动力电池的低温加热控制方法,包括:判断汽车当前所处状态为初始上电状态、下电状态、休眠状态或充电状态时;根据电池包当前温度和SOC值是否超过设定的低温阈值和SOC阈值,判断是否开启PTC加热电池包;根据天气预报判断未来设定时长内是否有需要自加热的时间段,是则根据当前SOC值计算能开启的温控时间T1小时并推荐给用户;接收用户预先设置的开启电池包温控模式的时间,在时间满足时自动开启电池包温控模式;接收用户远程实时发送的加热指令,根据加热指令对电池包进行加热;判断电池包当前温度是否低于设定的低温阈值,是则通过充电枪对电池包进行加热,否则进入充电模式;可以提高汽车的续驶里程和电池包的使用寿命。


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    Title :

    Low-temperature heating control method of power battery


    Additional title:

    一种动力电池的低温加热控制方法


    Contributors:
    LI SENLIN (author) / GUO ZHIHAO (author) / HU ZAOYANG (author) / HONG JIE (author) / ZHAN QI (author)

    Publication date :

    2023-09-05


    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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