The invention discloses a curve speed limit calculation module which is used for an intelligent driving assistance system. Comprising a transverse acceleration speed-limiting unit, a vehicle motion state curvature radius estimation speed-limiting unit, a steering wheel angle speed-limiting unit and a sensing data curvature estimation speed-limiting unit, wherein the expected acceleration, the first acceleration change rate limiting quantity and the second acceleration change rate limiting quantity are obtained according to different parameters; the acceleration amplitude limiting output unit takes the minimum value from the expected accelerations obtained by the units to obtain the expected acceleration of the curve to be subjected to amplitude limiting, takes the minimum value from the first acceleration change rate limiting quantity and the second acceleration change rate limiting quantity to obtain the minimum acceleration change rate limiting quantity, and performs amplitude limiting processing on the expected acceleration of the curve to be subjected to amplitude limiting to obtain the expected acceleration of the curve to be subjected to amplitude limiting. And calculating to obtain the final vehicle curve expected acceleration. According to the method, the smoothness of pre-deceleration and speed limiting of the curve can be improved, the speed limiting performance of the curve is enhanced, and the driving safety of vehicle turning can be improved.

    本发明公开了一种弯道限速计算模块,其用于智能驾驶辅助系统,包括:横向加速度限速单元、车辆运动状态估计曲率半径限速单元、方向盘转角限速单元和感知数据估计曲率限速单元根据不同参数分别获得期望加速度、第一加速度变化率限制量和第二加速度变化率限制量;加速度限幅输出单元在上述各单元获得期望加速度中取最小值,得出待限幅的弯道期望加速度,其在第一加速度变化率限制量和第二加速度变化率限制量取小值获得最小加速度变化率限制量,对待限幅的弯道期望加速度进行限幅处理,计算得到最终的车辆弯道期望加速度。本发明能提升弯道预减速和限速的平顺性,增强弯道限速性能,并且能提升车辆过弯的行驶安全性。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Curve speed limit calculation system and method


    Weitere Titelangaben:

    弯道限速计算系统及方法


    Beteiligte:
    HE YICHAO (Autor:in) / HOU SHICHANG (Autor:in) / LI HAO (Autor:in) / TONG YUWEI (Autor:in) / TIAN HE (Autor:in) / LU CHANG (Autor:in)

    Erscheinungsdatum :

    2023-06-23


    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



    Train speed limit curve calculation method and device of moving block system

    LI SHUNA | Europäisches Patentamt | 2022

    Freier Zugriff

    Limit alarm curve calculation method based on terrain following model

    SUN KAI / ZHU TAORAN / PANG HUAQUN et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Vehicle curve rollover prevention and speed limit warning system

    HE FENG / CHEN JIANGSHENG / HAN XUEWEN et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    DICHOTOMY-BASED CALCULATION ALGORITHM AND SYSTEM FOR CALCULATION MODE SPEED-LIMIT VALUE

    LIU ZHONGNAN / CHEN ZEHUA / JIANG QI et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Train speed limit determination method of train safety braking curve model

    LI RUIXIANG / YANG CHENGJIAN / GAO KANG et al. | Europäisches Patentamt | 2022

    Freier Zugriff