The invention discloses a torque recovery control method and system and a vehicle. The method comprises the steps: identifying whether one of special road conditions exists on a front road or not, wherein the special road conditions comprise n different types of road conditions, and the special road conditions represent road surfaces which can cause abnormal actions of a running vehicle; judging whether the vehicle is in a sliding condition; if it is identified that the front road has a special road condition and is in a sliding working condition, the current recovery torque is Tq current, Tq current is smaller than 0, based on the current recovery torque Tq current, the current vehicle is gradually increased to the preset recovery torque Tqi corresponding to the special road condition in the process of driving to the position of the special road condition, Tqi is larger than Tq current, and Tqi is smaller than or equal to 0; the preset recovery torques corresponding to the n different types of road conditions are sequentially defined as Tq1, Tq2... Tqi... Tqn, and i = 1, 2... n. According to the torque recovery control method, the total sliding energy recovery amount under specific road conditions and vehicle conditions is increased, corresponding potential safety hazards are eliminated, and the risk that the vehicle is out of control is avoided.

    本发明公开一种回收扭矩控制方法、系统和车辆,步骤包括:识别前方道路是否存在特殊路况中的一种,特殊路况包括n种不同类别路况,其中,特殊路况表示会导致行驶车辆异常行动的路面;判断车辆是否处于滑行工况;若识别到前方道路存在特殊路况且处于滑行工况时,当前的回收扭矩为Tq当前,Tq当前<0,基于当前回收扭矩Tq当前本车在驶向特殊路况的位置过程中逐渐增加至该特殊路况所对应的预设回收扭矩Tqi,Tqi>Tq当前,Tqi≤0;其中,n种不同类别路况所对应的预设回收扭矩依次定义为Tq1、Tq2···Tqi···Tqn,i=1,2···n。本发明的回收扭矩控制方法,提高了在特定路况、车况下的滑行能量回收总量并消除相应的安全隐患,规避了车辆失控风险。


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    Titel :

    Recovery torque control method and system and vehicle


    Weitere Titelangaben:

    一种回收扭矩控制方法、系统和车辆


    Beteiligte:
    YANG GUANLONG (Autor:in) / ZHANG PEIPEI (Autor:in) / YAN QINSHAN (Autor:in) / LI ZONGHUA (Autor:in) / XU TONG (Autor:in)

    Erscheinungsdatum :

    10.09.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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