The invention discloses an automobile creeping starting control method and system, and relates to the technical field of automobiles. Obtaining a target slope value of the ground where the automobile is located according to the automobile control signal; when the target slope value is greater than a first slope threshold value, determining a first crawling torque and a first crawling torque gradient corresponding to the target slope value according to a preset first corresponding relationship among a reference slope value, a reference crawling torque and a reference crawling torque gradient; when the depth of the brake pedal changes, the automobile is controlled to change from the initial torque to the first creeping torque according to the first creeping torque gradient so as to drive the automobile to start; compared with the prior art, the method has the advantages that the torque required by the automobile does not need to be calculated after the automobile is started, the actual torque can be quickly established for the automobile directly according to the obtained first creeping torque and the first creeping torque gradient, the automobile is controlled to be started, and therefore the automobile can stably run, and the condition of slope sliding is avoided.

    一种汽车蠕行起步控制方法及系统,涉及汽车技术领域,该方法包括接收汽车控制信号;根据汽车控制信号,获取汽车所处地面的目标坡度值;在目标坡度值大于第一坡度阈值时,根据预设的参考坡度值与参考蠕行扭矩、参考蠕行扭矩梯度的第一对应关系,确定目标坡度值对应的第一蠕行扭矩与第一蠕行扭矩梯度;当制动踏板深度变化时,控制汽车由初始扭矩,按照第一蠕行扭矩梯度变化为第一蠕行扭矩,以驱动汽车起步;与现有技术相比,无需在汽车起步以后才开始计算汽车所需的扭矩,能够直接根据获取到的第一蠕行扭矩与第一蠕行扭矩梯度,快速为汽车建立实际扭矩,控制汽车进行起步,从而使得汽车得以平稳的行驶,不会出现溜坡的情况。


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    Title :

    Automobile crawling starting control method and system


    Additional title:

    一种汽车蠕行起步控制方法及系统


    Contributors:
    LI FAQIANG (author) / LYU XUEWANG (author) / LIU HUI (author) / ZHANG GONG (author) / LI JUN (author)

    Publication date :

    2023-12-12


    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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