The invention discloses an electric vehicle driving anti-slip control system and control method, and the method comprises the steps: obtaining a wheel rotating speed signal and a vehicle speed signal which are collected in advance, and calculating a slip rate and a slip rate change rate; whether the slip rate change rate is larger than a preset threshold value or not is judged; when the conditions are met, judging to enter a logic threshold value control and fuzzy combined control mode, and if the conditions are not met within the set interval time, judging to enter the logic threshold value control mode; under the logic threshold value control mode, a torque adjustment coefficient is obtained through calculation; in the fuzzy joint control mode, an additional adjustment coefficient is obtained through calculation; the final torque adjustment coefficient is obtained through calculation of the torque adjustment coefficient and the additional adjustment coefficient and used for driving anti-skid adjustment, the stable control effect can be achieved, the stability of simple logic threshold value adjustment is considered, and the adjustment characteristic for complex working conditions is also included.

    本发明公开了一种电动车辆驱动防滑控制系统及控制方法,包括获取预先采集的车轮转速信号和车速信号,计算求得滑转率和滑转率变化率;判断所述滑转率变化率是否大于预先设定的阈值;当满足条件时,判断进入逻辑门限值控制和模糊联合控制模式,如果设定间隔时间内不满足条件,判断进入逻辑门限值控制模式;在逻辑门限值控制模式下,计算得到力矩调整系数;在模糊联合控制模式下,计算得到附加调整系数;通过所述力矩调整系数和附加调整系数计算得到最终力矩调整系数,用于驱动防滑调节,本发明能够达到稳定控制的效果,即兼顾了简单逻辑门限值调节的稳定性,也包含了对于复杂工况的调节特性。


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    Title :

    Electric vehicle driving anti-skid control system and control method


    Additional title:

    一种电动车辆驱动防滑控制系统及控制方法


    Contributors:
    YANG HAI (author) / ZHANG WEIKANG (author) / LI HUAIYI (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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