The invention discloses a road adhesion coefficient determination method, device and equipment, a vehicle, a storage medium and a product, and belongs to the technical field of automobiles. The method comprises the following steps: acquiring a wheel reference speed, a first wheel estimated rotating speed corresponding to a current time period, wheel information, wheel speed sensing data and an attachment correction coefficient; determining wheel dynamic characteristic information based on the wheel reference speed, the first wheel estimated rotating speed and the wheel information; predicting a second wheel estimated rotating speed corresponding to the next time period according to the wheel dynamic characteristic information and the wheel information; and correcting the road adhesion coefficient according to the second wheel estimated rotating speed, the wheel speed sensing data and the adhesion correction coefficient to obtain a corrected first road adhesion coefficient. According to the technical scheme provided by the embodiment of the invention, a calculation closed loop of the road adhesion coefficient value is formed, the road adhesion coefficient value with required precision is iteratively converged, excessive dependence on the precision of the input signal is avoided, and the real-time performance of determining the road adhesion coefficient is relatively good.

    本申请公开了一种路面附着系数的确定方法、装置、设备、车辆、存储介质及产品,属于汽车技术领域。所述方法包括:获取车轮参考速度、当前时间周期对应的第一车轮估计转速、车轮信息、轮速传感数据和附着矫正系数;基于车轮参考速度、第一车轮估计转速和车轮信息,确定车轮动力特征信息;据车轮动力特征信息和车轮信息,预测下一时间周期对应的第二车轮估计转速;根据第二车轮估计转速、轮速传感数据和附着矫正系数,对路面附着系数进行矫正,得到矫正后的第一路面附着系数。本申请实施例提供的技术方案形成路面附着系数值的计算闭环并迭代收敛至需求精度的路面附着系数值,不会过度依赖输入信号的精度,并且确定路面附着系数的实时性较好。


    Access

    Download


    Export, share and cite



    Title :

    Method, device and equipment for determining road adhesion coefficient, vehicle, storage medium and product


    Additional title:

    一种路面附着系数的确定方法、装置、设备、车辆、存储介质及产品


    Contributors:
    WANG JI (author)

    Publication date :

    2024-08-16


    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



    Method, device and equipment for determining road adhesion coefficient, vehicle and program product

    REN YINGWEN / ZHA JINGQIANG / XUE WANJI et al. | European Patent Office | 2024

    Free access


    Commercial vehicle road adhesion coefficient calculation method, device and equipment and storage medium

    LI CHAO / LING WENQUAN / HE SHUILONG et al. | European Patent Office | 2024

    Free access

    Road adhesion coefficient determination method, device, equipment, program product and medium

    ZHANG WEI / ZHENG HAILIANG / CHU QI | European Patent Office | 2024

    Free access

    Road adhesion coefficient calculation method and device, vehicle and storage medium

    CHOU XIAOGANG | European Patent Office | 2023

    Free access