The invention discloses a hill starting method and system based on an automatic continuously variable transmission and a vehicle. The hill starting method comprises the steps that whether the vehicle is in a hill starting state or not is judged; if yes, the hill starting assisting method based on the gearbox electronic control unit is executed and comprises the steps that a current accelerator opening degree signal is received, and the first target rotating speed of an engine is determined according to the current accelerator opening degree signal; after the clutch reaches the joint point, the rotating speed of the engine is controlled to rise, the load of the clutch is controlled to be below a first threshold value, and meanwhile rotating speed information of the engine is received; if the rotating speed of the engine is increased to the first target rotating speed, the load of the clutch is controlled to be increased, meanwhile, the rotating speed of the engine is decreased, and the vehicle begins to climb; and when the rotating speed of the engine is reduced to the second target rotating speed, controlling the load of the clutch to stop increasing, and completing hill starting. The problem that hill starting of an automatic continuously variable transmission vehicle is difficult is solved.

    本申请公开了一种基于自动无级变速箱的坡道起步方法、系统及车辆,坡道起步方法包括:判断车辆是否处于坡道起步状态;若是,则执行基于变速箱电控单元的坡道起步辅助方法,包括:接收当前油门开度信号,并依据当前油门开度信号确定发动机的第一目标转速;当离合器到达结合点后,控制发动机的转速上升,并将离合器的负载控制在第一阈值以下,同时接收发动机的转速信息;若发动机的转速上升到第一目标转速,则控制离合器的负载增加,同时发动机的转速下降,车辆开始爬坡;当发动机的转速下降到第二目标转速时,控制离合器的负载停止增加,完成坡道起步。本申请解决了自动无级变速箱车型坡道起步困难的问题。


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    Title :

    Hill starting method and system based on automatic continuously variable transmission and vehicle


    Additional title:

    基于自动无级变速箱的坡道起步方法、系统及车辆


    Contributors:
    LIU SHIPENG (author) / LI KAI (author) / WU DAIMING (author) / WEN MIN (author) / HUAI ZILI (author) / CHEN WEI (author)

    Publication date :

    2022-12-06


    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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