The invention discloses a hill-holding control method for a fuel cell vehicle. The hill-holding control method comprises the steps: 100, determining whether the vehicle enters a hill-holding control function or not based on a vehicle state and a gradient calculated in real time; 200, under a hill-holding control function, acquiring a pre-control torque based on the gradient calculated in real timeand the vehicle speed acquired in real time and obtaining a P feedback control torque and an I feedback control torque based on a vehicle speed difference calculated in real time; 300, outputting a first hill-holding torque based on the pre-control torque, the P feedback control torque and the I feedback control torque until the vehicle speed reaches a target control vehicle speed 0km/h; and 400,once the vehicle speed reaches the target control vehicle speed 0km/h, outputting a second hill-holding torque based on the pre-control torque and the I feedback control torque until a hill-holding control function quitting condition occurs. In addition, the invention further discloses a hill-holding control system for the fuel cell vehicle, and the hill-holding control system executes the hill-holding control method.

    本发明公开了一种用于燃料电池车的驻坡控制方法,其包括步骤:步骤100:基于车辆状态和实时计算的坡度判断车辆是否进入驻坡控制功能;步骤200:在驻坡控制功能下,基于实时计算的坡度和实时获取的车速获取预控扭矩;基于实时计算的车速差获得P反馈控制扭矩和I反馈控制扭矩;步骤300:基于预控扭矩、P反馈控制扭矩和I反馈控制扭矩输出第一驻坡扭矩,直至车速达到目标控制车速0km/h;步骤400:一旦车速达到目标控制车速0km/h,则基于预控扭矩和I反馈控制扭矩输出第二驻坡扭矩,直至出现驻坡控制功能退出条件。此外,本发明还公开了一种用于燃料电池车的驻坡控制系统,其执行上述的驻坡控制方法。


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    Title :

    Hill-holding control method and system for fuel cell vehicle


    Additional title:

    用于燃料电池车的驻坡控制方法及系统


    Contributors:
    FU CHANGBO (author) / SHENG JIXIN (author) / CHEN SHIHU (author) / ZHOU YANG (author) / LIU LIN (author) / GAO FEI (author)

    Publication date :

    2020-04-17


    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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