The embodiment of the invention provides a charging control method of an electric vehicle, a vehicle control unit, a system and the electric vehicle, wherein the method comprises the steps: when detecting that the electric vehicle is in a slow charging state and in a high-voltage power-on state, according to the states of a battery heating system and a high-voltage power utilization system, obtaining a first target output power according to the charging demand power of a power battery, the first demand power of the battery heating system and the second demand power of the high-voltage power utilization system; and if the first target output power is greater than the maximum output power of a charger, sending prompt information to an instrument. In the embodiment of the invention, when it is determined that the maximum output power of the charger is not enough to meet the total required power of the electric vehicle at the moment, a user is reminded whether to turn off the high-voltage power utilization system or not, the situation that the power battery is not charged but is discharged is avoided, then it is ensured that the electric vehicle is charged within a short time, and normal use of the electric automobile is ensured.

    本发明的实施例提供了一种电动汽车的充电控制方法、整车控制器、系统及电动汽车,其中方法包括:当检测到电动汽车处于慢充充电状态,且处于高压上电状态时,根据电池加热系统和高压用电系统的状态,根据动力电池的充电需求功率、电池加热系统的第一需求功率以及高压用电系统的第二需求功率,得到第一目标输出功率;若第一目标输出功率大于充电机的最大输出功率,则发送提示信息至仪表。在本发明的实施例中,当确定此时充电机的最大输出功率不足以满足电动汽车的总需求功率时,提醒用户是否关闭高压用电系统,避免出现动力电池不充电,反而放电的情况,进而保证电动汽车在较短的时间内完成充电,保证电动汽车的正常使用。


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    Title :

    Charging control method of electric vehicle, vehicle control unit, system and electric vehicle


    Additional title:

    电动汽车的充电控制方法、整车控制器、系统及电动汽车


    Contributors:
    ZHANG HAIYAN (author) / LYU ZHIWEI (author)

    Publication date :

    2021-05-11


    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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