The invention provides an electric vehicle single pedal control method, system and device and a medium. The method comprises the following steps that the real-time vehicle speed is collected; a first pedal opening degree at the corresponding moment under the real-time vehicle speed is collected, and a second pedal opening degree collected at the last moment is obtained; calculating a pedal opening degree change rate according to the first pedal opening degree and the second pedal opening degree; when it is judged that the pedal opening change rate is smaller than or equal to a first preset value, a vehicle speed calibration database is called, and the vehicle speed range of the real-time vehicle speed is determined; when it is judged that the first pedal opening degree is larger than or equal to the pedal opening degree lower limit value and smaller than or equal to the pedal opening degree upper limit value, a first calibration database is inquired, and a first torque corresponding to the vehicle speed range where the real-time vehicle speed is located is obtained; and the automobile is driven by the first torque to be in a constant-speed state. The single-pedal control method for the electric automobile has the advantages that the problems of long delay time of starting power response of the automobile, difficulty in controlling the steady-state speed, high energy consumption caused by large torque fluctuation of the motor and the like are solved.

    本申请提供一种电动汽车单踏板控制方法、系统、设备及介质,其中方法包括如下步骤:采集实时车速;采集实时车速下对应时刻的第一踏板开度,并获取上一时刻所采集的第二踏板开度;以第一踏板开度和第二踏板开度计算踏板开度变化率;判断踏板开度变化率小于或等于第一预设值时,调用车速标定数据库,确定实时车速所处的车速范围;判断第一踏板开度大于或等于踏板开度下限值且小于或等于踏板开度上限值时,查询第一标定数据库,得到实时车速所处的车速范围对应的第一扭矩;以第一扭矩驱动汽车以使汽车处于匀速状态。本申请提供的电动汽车单踏板控制方法具有克服汽车起步动力响应延迟时间长、稳态车速不好控制、电机扭矩波动大导致能耗偏高等问题。


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    Title :

    Electric automobile single pedal control method, system, equipment and medium


    Additional title:

    一种电动汽车单踏板控制方法、系统、设备及介质


    Contributors:
    LI JUN (author) / LIU HUI (author) / CAI LI (author) / ZHANG GONG (author) / HU HAO (author)

    Publication date :

    2023-06-30


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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