The invention relates to a pure electric vehicle torque control method and system and a medium. The method comprises the steps that on the basis of vehicle real-time information, charging and discharging power allowed by a motor in a charging and discharging mode is calculated; calculating available torque of the motor; the available torque of the motor is limited; the output torque is limited; the torque required by the driver is limited, and the motor request torque is output; the torque is used as an initial motor request torque to be sent to a motor controller MCU, and the motor controller MCU controls a motor to output a corresponding torque value; pID control is carried out; the vehicle control unit VCU sends the motor request torque adjusted by the PID to a motor controller MCU, and the motor controller MCU controls a motor to output a corresponding torque value to drive the vehicle to run; the problem of battery over-discharge caused by overspeed of the motor is effectively prevented; and the jerking caused by torque limiting after overpower is solved, and the drivability is improved.

    本发明涉及一种纯电动车扭矩控制方法、系统及介质;方法包括:基于车辆实时信息,计算充放电模式下,电机允许的充放电功率;计算电机可用扭矩;对电机可用扭矩进行限制;对输出扭矩进行限制;对驾驶员需求扭矩进行限制,输出电机请求扭矩;将其作为初始电机请求扭矩发给电机控制器MCU,电机控制器MCU控制电机输出相应扭矩值;进行PID控制;整车控制器VCU将PID调节后的电机请求扭矩发送给电机控制器MCU,电机控制器MCU控制电机输出相应扭矩值,驱动车辆行驶;本发明有效预防电机超转速导致的电池过放问题;解决了超功率后限扭造成的顿挫,提升了驾驶性。


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    Title :

    Torque control method and system for pure electric vehicle and medium


    Additional title:

    一种纯电动车扭矩控制方法、系统及介质


    Contributors:
    AN JIE (author) / WANG LUGANG (author) / QIAN XIN (author) / LI YANG (author) / WEI SHOUQI (author) / ZHANG PENGFEI (author) / WANG KE (author) / LI WENQI (author)

    Publication date :

    2024-09-27


    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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