The invention discloses an automobile antiskid protection method, and belongs to the field of automobile control. The protection method specifically comprises the steps: S1, continuously collecting and processing to obtain the real-time rotating speed of an automobile drive motor, and outputting a real-time rotating speed change rate according to the real-time rotating speed; S2, judging whether the real-time rotating speed change rate is in a preset fault interval or not, and when the real-time rotating speed change rate is in the fault interval, marking a position and outputting a corresponding torque instruction; S3, limiting the maximum output torque of the automobile drive motor according to the torque instruction, and determining whether the real-time rotating speed is in a continuous rising trend or not according to the real-time rotating speed change rate; and S4, according to all the preset torque instructions, sequentially increasing limitation on the maximum output torque ofthe automobile drive motor. By means of the technical scheme, the automobile can be prevented from being out of control after the wheels run away, breakdown of the motor controller at a high rotatingspeed is avoided, meanwhile, independent hardware does not need to be added to monitor the wheel rotating speed, and cost is reduced.

    本发明公开了一种汽车防滑保护方法,属于汽车控制领域,保护方法具体包括:步骤S1:持续采集并处理获得汽车驱动电机的实时转速并根据实时转速输出实时转速变化率;步骤S2:判断实时转速变化率是否处于预设故障区间,并当实时转速变化率处于故障区间时进行标志位置位并输出对应的扭矩指令;步骤S3:根据扭矩指令对汽车驱动电机的最大可输出扭矩进行限制,并根据实时转速变化率判断实时转速是否处于持续上升趋势;步骤S4:根据预设的全部扭矩指令,依次增大对汽车驱动电机的最大可输出扭矩的限制。通过本技术方案,能够避免车轮飞车后车辆失控和避免电机控制器在高转速下击穿,同时不需要增加单独的硬件监控车轮转速,降低成本。


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    Title :

    Automobile antiskid protection method


    Additional title:

    一种汽车防滑保护方法


    Contributors:

    Publication date :

    2021-03-12


    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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