The invention discloses a driving safety protection method for an electric vehicle. The driving safety protection method comprises the steps that the reverse dragging torque of a motor is obtained; whether the reverse dragging torque is abnormal reverse dragging torque or not is judged; and if the reverse dragging torque is the abnormal reverse dragging torque, a high-voltage loop is controlled to be disconnected, so that the electric automobile enters a safe state. Whether the reverse dragging torque output by the current motor is the abnormal torque or not is judged, if the reverse dragging torque is the abnormal torque, the high-voltage loop is controlled to be disconnected, and therefore the reverse dragging torque generated by the motor is cut off, the problem that the reverse dragging torque of the motor is too large at the high vehicle speed is avoided, the vehicle enters the safe state, and driving safety is improved.

    本发明公开了一种电动汽车驱动行驶安全保护方法,包括:获取电机的反拖扭矩;判断所述反拖扭矩是否为异常反拖扭矩;若所述反拖扭矩为异常反拖扭矩,则控制高压回路断开,以使所述电动汽车进入到安全状态。本发明通过判断当前电机输出的反拖扭矩是否为异常扭矩,若是异常扭矩,则控制高压回路断开,从而切断电机产生的反拖扭矩,避免高车速下电机反拖扭矩过大的问题,使车辆进入到安全状态,提高了行车安全。


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    Title :

    Electric vehicle driving safety protection method, device, equipment and medium


    Additional title:

    电动汽车驱动行驶安全保护方法、装置、设备及介质


    Contributors:
    LIU ZHENTAO (author) / ZHAI JUN (author) / KONG QUAN (author) / CHEN DONG (author)

    Publication date :

    2023-06-06


    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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