The invention discloses a pure electric vehicle ejection starting control method, system and device and a storage medium, and the method comprises the steps that after an ejection starting function activation signal initiated by a user is received, the user is prompted to deeply step on an accelerator to warm a tire on an ejection road surface, and the wheel slip rate is obtained; determining a tire warming completion state according to the wheel slip rate; acquiring a wheel ground attachment coefficient based on the tire warming completion state, and determining a motor stalling torque corresponding to the ejection system according to the wheel ground attachment coefficient and the wheel slip rate; and performing ejection starting control on the pure electric vehicle according to the locked-rotor torque of the motor. Compared with the prior art that a fixed motor stalling torque needs to be set in advance, and then torque limiting is involved through a traction control system, the current road surface condition can be determined according to the wheel ground attachment coefficient before ejection starting; and then the optimal motor stalling torque corresponding to the ejection system is set according to the wheel ground attachment coefficient and the wheel slip rate, so that the dynamic property and the operation stability of the vehicle are improved.

    本发明公开了一种纯电动汽车弹射起步控制方法、系统、设备及存储介质,所述方法包括:在接收到用户发起的激活弹射起步功能信号后,提示用户在弹射路面深踩油门暖胎,获取车轮滑转率;根据车轮滑转率确定暖胎完成状态;基于暖胎完成状态获取车轮地面附着系数,根据车轮地面附着系数和车轮滑转率确定弹射系统对应的电机堵转扭矩;根据电机堵转扭矩对纯电动汽车进行弹射起步控制。相较于现有技术中需要事先设置出固定的电机堵转扭矩,再通过牵引力控制系统介入限扭相比,而本发明在弹射起步前可根据车轮地面附着系数确定当前路面情况,之后根据车轮地面附着系数和车轮滑转率设置最优的弹射系统对应的电机堵转扭矩,从而提高车辆动力性和操作稳定性。


    Access

    Download


    Export, share and cite



    Title :

    Blade electric vehicle ejection starting control method, system and equipment and storage medium


    Additional title:

    纯电动汽车弹射起步控制方法、系统、设备及存储介质


    Contributors:
    YUAN ZHOULI (author) / QU BIN (author) / DING QING (author) / FANG CHENG (author)

    Publication date :

    2023-05-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    Motorcycle ejection starting control method, system and equipment and storage medium

    SHI LEI / BAI WANGYANG / WU ZHAOMING et al. | European Patent Office | 2024

    Free access

    Vehicle ejection starting control method and device, storage medium and vehicle

    YU JIAHENG | European Patent Office | 2024

    Free access

    Vehicle ejection starting control method, device and equipment and medium

    NING JIAKUI / ZHU GUIQING / SUN FEI | European Patent Office | 2023

    Free access

    Vehicle ejection starting control method and device, storage medium and vehicle

    HUO HAITAO / YIN JIANKUN / ZHANG QIANG et al. | European Patent Office | 2023

    Free access

    Abnormal ejection starting processing method and device, storage medium and electric vehicle

    TANG YUANMING / SUN DESHAN / CHEN YINGMING et al. | European Patent Office | 2023

    Free access