According to the braking control method and device for the pure electric vehicle, the total demand braking force is distributed to obtain the first braking force corresponding to the first motor and the second braking force corresponding to the second motor, and the first braking force and the second braking force are distributed after being corrected based on the vehicle real-time information; and the third braking force, the fourth braking force and the air pressure friction braking force are obtained and based on the third braking force, the fourth braking force and the air pressure friction braking force, related parts of the vehicle are controlled to conduct braking, actual deceleration is obtained and compared with target deceleration to obtain feedback deceleration, the total demand braking force is updated based on the feedback deceleration, the target deceleration and the vehicle weight, and the total demand braking force is redistributed. According to the scheme, the total demand braking force is distributed according to the real-time information of the vehicle, and the total demand braking force is updated and redistributed according to the actual deceleration and the target deceleration in the braking process, so that the actual deceleration reaches the target deceleration, and the purposes of recycling braking and closed-loop control by using the motor to the maximum extent are achieved.

    本发明提供一种纯电动车辆的制动控制方法及装置,分配总需求制动力得到第一电机对应的第一制动力和第二电机对应的第二制动力,基于车辆实时信息将第一制动力和第二制动力进行修正后进行分配,得到并基于第三制动力、第四制动力和气压摩擦制动力,控制车辆相关部件进行制动,获取实际减速度并与目标减速度进行比较得到反馈减速度,基于反馈减速度、目标减速度和车辆重量更新总需求制动力,并返回重新分配总需求制动力。在本方案中,根据车辆得实时信息,分配总需求制动力,并在制动过程中根据实际减速度与目标减速度,更新总需求制动力并重新分配,使实际减速度达到目标减速度,以实现最大化利用电机进行回收制动,以及闭环控制的目的。


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    Title :

    Braking control method and device for pure electric vehicle


    Additional title:

    一种纯电动车辆的制动控制方法及装置


    Contributors:
    ZHANG SHUNKAI (author) / DU YI (author) / WANG XIAOBIN (author) / WANG YUAN (author)

    Publication date :

    2024-11-01


    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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