The invention provides a crawling control method and device and a vehicle. The crawling control method comprises the steps that when the vehicle enters a crawling starting working condition from an idling charging working condition, a clutch transmission torque increasing instruction is sent out and used for increasing the clutch transmission torque; the clutch transmission torque of the vehicle is obtained in real time, when the clutch transmission torque is larger than a preset torque threshold value, a charging torque reduction instruction is sent out, and the charging torque reduction instruction is used for reducing the charging torque; when the vehicle enters the creeping working condition from the creeping starting working condition, the vehicle speed is obtained in real time, when the vehicle speed is larger than a preset vehicle speed threshold value, a charging torque increasing instruction is sent out, and the charging torque increasing instruction is used for increasing the charging torque. According to the crawling control method and device and the vehicle, the problems of slow power response, falling speed and the like in the crawling starting process due to the fact that the sum of the charging torque and the clutch transmission torque exceeds the maximum output torque adjusted by the current rotating speed of the engine can be solved.

    本申请提供一种蠕行控制方法、装置及车辆,蠕行控制方法包括:当车辆由怠速充电工况进入蠕行起步工况时,发出离合器传递扭矩增加指令,用于增加离合器传递扭矩;实时获取车辆的离合器传递扭矩,当离合器传递扭矩大于预设扭矩阈值时,发出充电扭矩减小指令,充电扭矩减小指令用于减小充电扭矩;当车辆由蠕行起步工况进入蠕行工况时,实时获取车辆车速,当车辆车速大于预设车速阈值时,发出充电扭矩增加指令,充电扭矩增加指令用于增加充电扭矩。本申请提供的蠕行控制方法、装置及车辆,能够避免由于充电扭矩和离合器传递扭矩之和超过发动机当前转速调节的最大输出扭矩,进而导致蠕行起步过程中动力响应慢和跌转速等问题。


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    Title :

    Crawling control method and device and vehicle


    Additional title:

    蠕行控制方法、装置及车辆


    Contributors:
    ZHAO JUNXIN (author) / WANG YUNYUN (author) / LI ZHUANG (author) / LI SHUO (author)

    Publication date :

    2023-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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