The invention discloses an anti-slope-sliding function control method for an electric vehicle. The anti-slope-sliding function control method comprises the following steps that S1, when it is judged that the vehicle is on a slope and the current vehicle is static on the slope, an anti-slope-sliding function is entered to execute the next step; S2, when it is judged that the vehicle is currently inthe slope sliding state, the next step is executed; S3, the VCU sends an anti-slope-sliding signal to the MCU, and the VCU requests the motor torque to be reset; and S4, the MCU calculates PI parameters needing to be executed currently, and the output torque of the motor is adjusted according to the PI parameters. The anti-slope-sliding function control method and system are compatible with the electric vehicle with the HHC, the electric vehicle is further protected after the HHC exits, slope sliding is prevented, and the problem of slope sliding during slope starting of the electric vehiclewithout the HHC can also be solved.

    本发明揭示了一种电动汽车防溜坡功控制方法,步骤1、当判定车辆处于坡上,且当前车静止在坡上时,则进入防溜坡功能执行下一步;步骤2、当判定当前处于溜坡状态,则执行下一步;步骤3、VCU发出防溜坡信号至MCU,且将VCU请求电机扭矩清零;步骤4、MCU计算当前需要执行的PI参数,并根据PI参数调节电机的输出扭矩。本发明兼容有HHC的电动汽车,HHC退出后进一步保护,防止溜坡,也能解决无HHC的电动汽车坡道起步溜坡问题。


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    Title :

    Anti-slope-sliding function control method and system for electric vehicle


    Additional title:

    一种电动汽车防溜坡功控制方法和系统


    Contributors:
    WANG KAIYANG (author) / XIANG NANJUN (author) / LIU ZHAOCAI (author)

    Publication date :

    2020-12-25


    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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