A control method for limiting the acceleration of a pure electric bus comprises the following steps: (1) an acceleration threshold a(max) of the bus is set, a(max) is equal to a1 when the bus runs normally, and a(max) is automatically switched to a value a2 larger than a1 when a driver continuously and fully steps on an accelerator for a time t1; (2) the acceleration a of the vehicle is calculatedin real time; (3) when the vehicle acceleration a is greater than or equal to the set acceleration threshold a(max), the current torque value of a motor is recorded as the maximum torque value, and the output torque of the motor is limited; and (4) the acceleration offset is set as a0, and if the current acceleration a is less than a(max)-a0, the motor exits from the torque limitation. Accordingto the control method based on the corresponding relation between the current torque of the motor and the acceleration, the acceleration of the vehicle is limited, when a driver has a clear and strongacceleration requirement, the limitation of the acceleration can be properly released, and the control method has good adaptability to different vehicle weights, loads and road conditions.

    一种纯电动公交车辆加速度限制的控制方法,包括以下步骤:(1)设定车辆的加速度阈值a,车辆正常行驶时a等于a1,当司机持续满踩油门达到时间t1时,a自动切换至比a1大的数值a2;(2)实时计算车辆加速度a;(3)当车辆加速度a大于等于设定的加速度阈值a时,记录下当前的电机扭矩值作为最大扭矩值,对电机输出扭矩进行限制;(4)设置加速度偏移量为a0,若当前加速度a


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    Title :

    Control method for limiting acceleration of pure electric bus


    Additional title:

    一种纯电动公交车辆加速度限制的控制方法


    Contributors:
    KANG LIN (author) / ZHU WUXI (author)

    Publication date :

    2020-04-10


    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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