The invention relates to the technical field of electric vehicles, and discloses an electric vehicle charging current control method and an electric vehicle, the method comprises the following steps: after determining that a rechargeable battery of the electric vehicle is in a charging state, obtaining an allowable charging current and an offset current of the rechargeable battery, and controlling a high-voltage device to enter a downshift delay state; when it is detected that the high-voltage device is in the working state, if it is detected that the high-voltage device meets the preset delay downshift condition in real time, the charging current of the rechargeable battery is adjusted to be the sum of the allowable charging current and the offset current; after a first preset duration, controlling the high-voltage device to execute a downshift action; and adjusting the charging current of the rechargeable battery to be the sum of the allowable charging current, the offset current and the consumed current of the high-voltage device after a second preset duration of executing the downshift action. According to the invention, the charging capacity of the battery is utilized to the maximum extent, the charging time is shortened, the overcharging phenomenon of the battery is avoided, and the safety of the battery is ensured.

    本发明涉及电动汽车技术领域,本发明公开了一种电动汽车充电电流控制方法和电动汽车,所述方法包括:在确定电动汽车的充电电池处于充电状态之后,获取充电电池的允许充电电流以及可偏移电流,并控制高压器件进入降档延时状态;在检测到高压器件处于工作状态时,若实时检测到高压器件符合预设延时降档条件,则将充电电池的充电电流调节为允许充电电流与可偏移电流之和;在第一预设时长之后,控制高压器件执行降档动作;在执行降档动作的第二预设时长之后,将充电电池的充电电流调节为允许充电电流、可偏移电流以及高压器件的消耗电流之和。本发明最大限度利用了电池充电能力,降低充电时间,且避免了电池过充现象的产生,保证了电池安全性。


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    Titel :

    Charging current control method for electric vehicle and electric vehicle


    Weitere Titelangaben:

    电动汽车充电电流控制方法和电动汽车


    Beteiligte:
    MA ZIHUI (Autor:in) / LI QIANLIN (Autor:in) / LIN YIFENG (Autor:in) / KE YUNBAO (Autor:in) / CAO JIAYI (Autor:in)

    Erscheinungsdatum :

    2022-09-20


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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




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