The invention relates to an electric vehicle torque compensation control method. The method comprises the following steps that vehicle real-time information parameters are obtained, and a torque compensation control method control threshold value is designed; judging whether the current torque change rate and amplitude meet activation torque compensation control or not; determining a torque compensation coefficient IT according to the current target torque value and the vehicle speed; calculating a torque compensation coefficient IC according to the change amplitude of the accelerator pedal after the torque compensation is activated; executing torque fluctuation rate limitation according to the target torque value, and limiting the torque fluctuation; and outputting the compensated power torque, and judging whether a torque compensation quitting control strategy condition is met or not. According to the electric automobile torque compensation control method, the torque hysteresis performance under dynamic driving of the automobile can be effectively compensated, and compared with a control mode that compensation is calculated only through an accelerator pedal change rate area, the whole torque path control is more reliable through a closed-loop control mode that the accelerator pedal changes after the monitoring function is activated.

    本发明涉及一种电动汽车扭矩补偿控制方法,包括以下步骤:获取车辆实时信息参数并设计扭矩补偿控制方法控制阈值;判断当前扭矩变化速率和幅值是否满足激活扭矩补偿控制;根据当前目标扭矩值和车速,确定扭矩补偿系数IT;根据激活扭矩补偿后油门踏板变化幅值,计算扭矩补偿系数IC;根据目标扭矩值,执行扭矩波动速率限制,对扭矩波动进行限制;输出补偿后动力扭矩,并判断是否满足退出扭矩补偿控制策略条件。本发明电动汽车扭矩补偿控制方法,能够有效弥补车辆动态驾驶下的扭矩迟滞表现,对比仅采用油门踏板变化速率区去计算补偿的控制方式,本发明通过监测功能激活后油门踏板变化的闭环控制方式,使整个扭矩路径控制更加可靠。


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    Title :

    Torque compensation control method for electric vehicle


    Additional title:

    一种电动汽车扭矩补偿控制方法


    Contributors:
    LI YANG (author) / QIAN XIN (author) / WANG LUGANG (author) / AN JIE (author)

    Publication date :

    2024-03-15


    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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