The invention discloses a wheel diameter correction method, a wheel speed coefficient correction method, a vehicle and a storage medium, and the wheel diameter correction method comprises the steps: obtaining the external parameter data of the vehicle in a driving path, and obtaining the positioning data of a plurality of positioning points based on the external parameter data; based on the positioning data and a first wheel diameter of the vehicle, obtaining first coordinate data of the detection target under the positioning time corresponding to the plurality of positioning points; acquiring second coordinate data belonging to the same detection target from the first coordinate data based on distance differences of all detection targets in all positioning time; and calculating a correction coefficient based on the second coordinate data, and correcting the wheel diameter based on the correction coefficient. According to the wheel diameter correction method, the wheel diameter of the vehicle is directly corrected according to the external parameter data, the wheel diameter correction does not need to be carried out through online signals such as a GPS, the problems of inaccurate wheel diameter correction and the like caused by weak GPS signals can be reduced or avoided, the dependence of wheel diameter correction on the environment is reduced, and the accuracy and reliability of wheel diameter correction are improved.

    本申请公开了轮径修正方法、轮速系数的修正方法、车辆及存储介质,该轮径修正方法通过获得车辆在一段行车路径下的外参数据,以基于外参数据获得多个定位点的定位数据;基于定位数据和车辆的第一轮径,获得在多个定位点对应的定位时间下检测目标的第一坐标数据;基于所有定位时间内所有检测目标的距离差异,从第一坐标数据获取属于同一检测目标的第二坐标数据;基于第二坐标数据计算出校正系数,以基于校正系数对轮径进行修正。该轮径修正方法直接根据外参数据对车辆的轮径进行修正,无需通过GPS等在线信号进行轮径修正,能够减少或避免由于GPS信号弱导致的轮径修正不准确等问题,减少轮径修正对于环境的依赖性,提高轮径修正的准确性和可靠性。


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    Title :

    Wheel diameter correction method, wheel speed coefficient correction method, vehicle and storage medium


    Additional title:

    轮径修正方法、轮速系数的修正方法、车辆及存储介质


    Contributors:
    ZHU JIANHUA (author) / HUANG DONGZE (author) / DI LUJIE (author) / WANG YAONONG (author)

    Publication date :

    2025-03-14


    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



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