The invention discloses a distributed driving electric vehicle active safety control method based on a stability domain. The method comprises the steps that speed information of a vehicle is obtained, a transverse dynamic model of the distributed driving electric vehicle is constructed, a solving algorithm of an analysis stability domain based on quadratic sum planning is designed, and vehicle dynamic stability domains under different working conditions are obtained; according to the Newton's second law and linear tire model hypothesis, a linear vehicle lateral dynamic model is constructed, a model prediction controller is designed based on the linear vehicle lateral dynamic model and stability domain constraints, an expected yaw velocity and an expected side slip angle are obtained, and active safety system control of the vehicle is completed. And the instability risk of the vehicle is avoided. The transverse stability controller based on model predictive control is developed, and the driving stability of the distributed driving electric vehicle is remarkably improved.

    本发明公开了一种基于稳定域的分布式驱动电动汽车主动安全控制方法,获取车辆的速度信息,构建分布式驱动电动汽车的横向动力学模型,设计基于平方和规划的解析稳定域的求解算法,得到不同工况下的车辆动态稳定域;根据牛顿第二定律和线性轮胎模型假设,构建线性车辆侧向动力学模型,基于线性车辆侧向动力学模型和稳定域约束,设计模型预测控制器,得到期望的横摆角速度和期望的质心侧偏角,完成车辆的主动安全系统控制,避免车辆出现失稳风险。本发明开发了基于模型预测控制的横向稳定性控制器,显著提升了分布式驱动电动汽车的行驶稳定性。


    Access

    Download


    Export, share and cite



    Title :

    Distributed driving electric vehicle active safety control method based on stability domain


    Additional title:

    一种基于稳定域的分布式驱动电动汽车主动安全控制方法


    Contributors:
    SHEN TONG (author) / SHI YUNKE (author) / LIU SHUAIPENG (author) / WANG YIKUN (author) / LI BINGBING (author) / HUO PENGFEI (author)

    Publication date :

    2024-06-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Distributed driving electric vehicle stability control method based on safety envelope area

    SHEN TONG / SHI YUNKE / LIU SHUAIPENG et al. | European Patent Office | 2024

    Free access

    Distributed driving electric vehicle stability control method for shared driving

    ZHOU CHAOBIN / GONG JIAN / FENG JIWEI et al. | European Patent Office | 2025

    Free access

    Distributed electric vehicle stability control method based on stability domain

    YU ZHIHAO / ZHAO YOUQUN / LIN FEN et al. | European Patent Office | 2022

    Free access

    Stability control method for distributed driving electric vehicle

    LU SHENG / LIU YANG / ZHAO YANG et al. | European Patent Office | 2021

    Free access

    Vehicle body stability control method based on distributed driving electric vehicle

    QU XIAOZHEN / WANG CHENG / SUN XIAOBANG | European Patent Office | 2023

    Free access