The invention relates to a battery self-heating method, a motor controller, a battery manager and a vehicle controller, and aims to improve the battery self-heating rate and efficiency. The method is applied to a motor controller and comprises the steps that a battery self-heating instruction is responded, a target heating current frequency and a maximum chargeable and dischargeable current threshold value are received, a target charging and discharging current amplitude value is determined according to the maximum chargeable and dischargeable current threshold value, the target heating current frequency is determined according to the current temperature and the current impedance of a power battery pack, and the target charging and discharging current amplitude value is determined according to the maximum chargeable and dischargeable current threshold value. The maximum chargeable and dischargeable current threshold value is determined according to the current temperature and the current battery load state of the power battery pack; and controlling according to the target charge-discharge current amplitude and the target heating current frequency so as to heat the power battery pack.

    本公开涉及一种电池自加热方法、电机控制器、电池管理器及车辆控制器,以提高电池自加热的速率和效率。该方法应用于电机控制器,包括:响应于电池自加热指令,接收目标加热电流频率以及最大可充放电流阈值,根据所述最大可充放电流阈值确定目标充放电流幅值,所述目标加热电流频率是根据动力电池包的当前温度和当前阻抗确定的,所述最大可充放电流阈值是根据所述动力电池包的当前温度和当前电池负荷状态确定的;根据所述目标充放电流幅值和所述目标加热电流频率进行控制,以加热动力电池包。


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    Title :

    Battery self-heating method, motor controller, battery manager and vehicle controller


    Additional title:

    电池自加热方法、电机控制器、电池管理器及车辆控制器


    Contributors:
    PAN HUA (author) / LEE KIL-SUNG (author) / ZHAO ZHIMENG (author) / LUO XIANG (author) / ZHANG JIE (author)

    Publication date :

    2024-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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