The invention provides a four-wheel drive control method for a multi-motor plug-in hybrid electric vehicle, and belongs to the technical field of automobiles. The problem that existing control cannot meet the requirements for economical efficiency, stability and dynamic property at the same time is solved. According to the four-wheel-drive control method for the multi-motor plug-in hybrid electric vehicle, according to the charge state, the discharge capacity, the accelerator pedal state, the gear lever position, the chassis stability control state and the rear-wheel-drive motor performance state of a high-voltage power battery, when it is judged that the preconditions for activating the four-wheel-drive mode are met, the four-wheel-drive mode is activated; according to driver operation information, vehicle state information and road surface state information which are monitored in real time, when it is judged that the vehicle belongs to a fierce driving working condition or a slope working condition or has an instability trend, the vehicle is controlled to enter a four-wheel drive mode, and according to the corresponding road surface state information, the driver operation information and the vehicle state information, the vehicle state information is controlled to enter a four-wheel drive mode. The distribution proportion of driving torque on front and rear shafts is adjusted. According to the invention, the dynamic property, the stability and the economical efficiency of the vehicle can be considered in different scenes.

    本发明提供了一种多电机插电混合动力汽车的四驱控制方法,属于汽车技术领域。它解决了现有的控制无法同时满足经济性、稳定性和动力性要求的问题。本多电机插电混合动力汽车的四驱控制方法,根据高压动力电池的荷电状态、放电能力、油门踏板状态、换挡杆位置、底盘稳定性控制状态和后驱电机性能状态,在判断四驱模式激活的前提条件满足时,根据实时监测的驾驶员操作信息、车辆状态信息和路面状态信息,在判定车辆属于激烈驾驶工况、坡路工况或有失稳趋势时,控制车辆进入四驱模式,并根据对应的路面状态信息、驾驶员操作信息和车辆状态信息,调节驱动扭矩在前后轴的分配比例。本发明能够在不同的场景下使车辆动力性、稳定性和经济性得到兼顾。


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    Titel :

    Four-wheel drive control method for multi-motor plug-in hybrid electric vehicle


    Weitere Titelangaben:

    一种多电机插电混合动力汽车的四驱控制方法


    Beteiligte:
    WANG JIAN (Autor:in) / ZHONG JUN (Autor:in) / WANG RUIGUANG (Autor:in) / YANG GUIKANG (Autor:in) / XIAO YIGE (Autor:in) / WANG RUIPING (Autor:in)

    Erscheinungsdatum :

    2022-05-31


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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