The invention discloses a reverse-gear driving control method of a multi-gear PS hybrid power system, which comprises the following steps: acquiring vehicle gear information and vehicle speed, and identifying reverse-gear driving modes of a vehicle according to the vehicle gear information and the vehicle speed, the reverse-gear driving modes including an R-gear static driving mode and an R-gear moving driving mode; judging whether the engine is started in a static state or a dynamic state according to the reverse gear driving mode and a preset engine starting condition; if static starting is adopted, the generator carries out target rotating speed and torque control on the engine according to a first rotating speed distribution formula # imgabs0 #, ns is the rotating speed of a sun gear, nc is the rotating speed of a planet carrier, and # imgabs1 # is the mechanical distribution ratio; if dynamic starting is adopted, the generator conducts target rotating speed and torque control on the engine according to a second rotating speed distribution formula: # imgabs2, and nr is the rotating speed of the gear ring. According to the method, the robustness of the engine during reverse gear driving can be improved, and the using comfort of an automobile is improved.

    本发明公开了一种多档PS混动系统的倒挡行驶控制方法,包括:获取车辆挡位信息和整车车速,并根据所述车辆挡位信息和所述整车车速进行车辆的倒挡行驶模式识别,所述倒挡行驶模式包括:R档静止行驶模式和R档运动行驶模式;根据倒挡行驶模式和预设的发动机启动条件判断发动机采用静态启动还是动态启动;如果采用静态启动,则发电机根据第一转速分配公式:#imgabs0#,对发动机进行目标转速和扭矩控制,其中,ns太阳轮转速,nc为行星架转速,#imgabs1#为机械分配比;如果采用动态启动,则发电机根据第二转速分配公式:#imgabs2#,对发动机进行目标转速和扭矩控制,其中,nr为齿圈转速。本发明能提高发动机在倒挡行驶的鲁棒性,提高汽车使用的舒适性。


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    Title :

    Reverse gear driving control method of multi-gear PS hybrid system


    Additional title:

    一种多档PS混动系统的倒挡行驶控制方法


    Contributors:
    CHEN JIACHAO (author) / WU QIANQIAN (author) / ZHOU YAN (author) / DAI DONGHUA (author) / FANG ZHIQIN (author) / XIA LING (author) / ZHANG JING (author)

    Publication date :

    2024-10-15


    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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