The embodiment of the invention discloses a limit energy consumption intelligent cruise control method and device for a pure electric vehicle. In the intelligent driving process of the pure electric vehicle, the expected driving speed of the vehicle is determined, and road condition information of the pure electric vehicle is obtained; one target mode is selected from a plurality of modes for intelligent driving, the plurality of modes comprise an acceleration mode, a constant speed mode and a deceleration mode, the acceleration mode comprises solving an optimal acceleration working point track from a current speed to an expected driving vehicle speed, and according to the optimal acceleration working point track, an acceleration mileage and a constant speed mileage are distributed; the constant-speed mode comprises the steps of acquiring the total mileage of a constant-speed stage of driving to an intersection, and interpolating according to the total mileage of the constant-speed stage and an expected driving speed to obtain a motor acceleration working point and an optimal distribution proportion; the deceleration mode comprises the steps of determining the optimal deceleration time and achieving deceleration through regenerative braking. The problem that energy consumption is insufficient when the pure electric vehicle is driven is effectively relieved.

    本申请实施例公开了一种纯电动汽车的极限能耗智能巡航控制方法和装置,在纯电动汽车的智能驾驶过程中,确定车辆预期行驶车速,获取纯电动汽车的路况信息;从多个模式中选择一个目标模式进行智能驾驶,多个模式包括加速模式、匀速模式和减速模式,其中:加速模式包括求解当前速度到预期行驶车速下的最优加速工作点轨迹,根据最优加速工作点轨迹分配加速和匀速里程;匀速模式包括获取行驶至路口的匀速阶段总里程,根据匀速阶段总里程和预期行驶车速插值得到电机加速工作点和最优分配比例;减速模式包括确定最佳减速时刻,通过再生制动实现减速。本申请有效缓解了驾驶纯电动汽车时能耗不足的问题。


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    Title :

    Limit energy consumption intelligent cruise control method and device for pure electric vehicle


    Additional title:

    一种纯电动汽车的极限能耗智能巡航控制方法和装置


    Contributors:
    WANG CHEN (author) / WU DI (author) / YANG ZHIJIA (author) / QIN YIXUAN (author) / LI XING (author)

    Publication date :

    2023-10-24


    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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