The invention provides an electric vehicle torque monitoring method and device and an electric vehicle, and relates to the technical field of electric vehicle torque safety, and the method comprises the steps: firstly determining a theoretical acceleration threshold range based on the current speed and acceleration parameters of a vehicle; and then obtaining the current actual acceleration of thevehicle, and when the current actual acceleration exceeds the theoretical acceleration threshold range, determining that the motor torque of the vehicle is in an abnormal state. According to the method, the abnormal torque output condition of the driving motor can be found in time when the vehicle runs, the safety problem caused by the abnormal output torque of the motor is avoided to a large extent, and the effect of improving the driving safety is achieved.

    本发明提供了一种电动车辆扭矩监控方法、装置和电动汽车,涉及电动车辆扭矩安全技术领域,该方法包括:首先基于车辆的当前车速和加速度参数,确定理论加速度阈值范围;然后获取车辆的当前实际加速度,当该当前实际加速度超出理论加速度阈值范围时,确定车辆的电机扭矩处于异常状态。该方法可在车辆行驶时及时发现驱动电机的异常扭矩输出情况,较大程度地避免了电机异常输出扭矩造成的安全问题,达到了提高驾驶安全性的效果。


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    Title :

    Electric vehicle torque monitoring method and device and electric vehicle


    Additional title:

    电动车辆扭矩监控方法、装置和电动汽车


    Contributors:

    Publication date :

    2021-02-05


    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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