The invention discloses a cruise control method and system for a pure electric vehicle and the pure electric vehicle. The cruise control method comprises the steps that after the whole vehicle is powered on, a stored target rotating speed is emptied; after the cruise mode is activated, if a chassis component has a torque control requirement, and an accelerator pedal or a brake pedal is stepped down, an electric drive system enters the torque control mode; when the chassis component has no torque control requirement and the accelerator pedal and the brake pedal are not stepped down, whether the current mode is in a rotating speed control mode or not is determined, if not, the current rotating speed is stored as a target rotating speed, the rotating speed control mode is activated, the rotating speed is controlled at the target rotating speed, and the output torque is limited at the same time; and if in the rotating speed control mode, the rotating speed is controlled at the target rotating speed, and the output torque is limited. The number of buttons can be reduced, and the operation difficulty is reduced.

    本发明公开了一种纯电动汽车的巡航控制方法、系统及纯电动车辆,包括:整车上电后,清空存储的目标转速;在巡航模式被激活后,若底盘部件有扭矩控制需求、油门踏板或制动踏板被踩下,电驱系统进入扭矩控制模式;在底盘部件无扭矩控制需求,且油门踏板和制动踏板均未被踩下,判断当前模式是否处于转速控制模式,若未处于转速控制模式,则存储当前转速为目标转速,并激活转速控制模式,以目标转速进行转速控制,同时限制输出扭矩,若处于转速控制模式,则以目标转速进行转速控制,同时限制输出扭矩。本发明能够减少按钮数量,减少操作难度。


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    Title :

    Cruise control method and system of pure electric vehicle and pure electric vehicle


    Additional title:

    纯电动汽车的巡航控制方法、系统及纯电动车辆


    Contributors:
    CHEN JIAN (author) / JIANG FEI (author) / LI HUA (author) / LIU LI (author) / CHEN XI (author) / PENG ZHIYUAN (author) / XIANG YANG (author) / CHEN WENLONG (author)

    Publication date :

    2021-04-27


    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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