The invention discloses a method and device for determining lateral acceleration based on a pitch angle and a longitudinal gradient. The method comprises the steps that the longitudinal gradient angle of a vehicle is obtained in the moving process of the vehicle; front and rear suspension rigidity, axle distance, centroid height and whole vehicle mass of the vehicle are obtained; the pitch angle of the vehicle is determined according to the rigidity of the front suspension and the rear suspension, the axle distance, the mass center height and the mass of the whole vehicle; the longitudinal gradient angle and the pitch angle are input into a pre-established lateral acceleration solving model, a lateral acceleration true value is output, and the lateral acceleration solving model is established according to three-dimensional dynamics. The implementation of the method can ensure the stable control of the vehicle when the vehicle rolls or the road surface has a transverse gradient, and avoids the rollover of the vehicle caused by the wrong output of lateral acceleration in the running process of the vehicle.

    本发明公开了一种基于俯仰角与纵向坡度确定侧向加速度的方法及装置,包括:在车辆运动过程中获取车辆的纵向坡度角;获取车辆的前后悬架刚度、轴距、质心高度和整车质量;根据所述前后悬架刚度、所述轴距、所述质心高度和所述整车质量确定车辆的俯仰角;将所述纵向坡度角和所述俯仰角输入至预先建立的侧向加速度求解模型中,输出侧向加速度真实值,其中,所述侧向加速度求解模型是根据三向动力学构建的。本发明的实施能够保证车辆在侧倾运动或者路面存在横向坡度时的稳定控制,避免车辆运行过程中输出错误的侧向加速度造成车辆侧翻。


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    Titel :

    Method and device for determining lateral acceleration based on pitch angle and longitudinal gradient


    Weitere Titelangaben:

    基于俯仰角与纵向坡度确定侧向加速度的方法及装置


    Beteiligte:
    DING SHAOBING (Autor:in) / YAN ZHONGYI (Autor:in) / ZHANG DANG (Autor:in) / LIU GUORUI (Autor:in) / ZHANG GUOXIANG (Autor:in)

    Erscheinungsdatum :

    2021-07-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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