The invention provides a road surface peak adhesion coefficient detection method and device and electronic equipment. The method comprises the following steps: acquiring a wheel-side driving force, a wheel-side load, a tire longitudinal speed and a tire angular speed of a current tire; according to the wheel edge driving force and the wheel edge load, determining an adhesion coefficient of the current tire; determining the longitudinal slip rate of the current tire according to the tire longitudinal speed and the tire angular speed; determining corresponding tangent rigidity according to the adhesion coefficient and the longitudinal sliding rate of the current tire; constructing a tire state matrix of the current tire by utilizing the tangent stiffness and the adhesion coefficient of the current tire; and based on a preset Gaussian distribution algorithm, determining the road surface peak adhesion coefficient of the current tire according to the tire state matrix. According to the method provided by the scheme, the road surface peak adhesion coefficient of the current tire is detected by monitoring the adhesion coefficient and the longitudinal sliding rate of the current tire in real time, so that the accuracy of a detection result of the road surface peak adhesion coefficient is improved, and a foundation is laid for improving the safety of a vehicle.

    本申请提供一种路面峰值附着系数检测方法、装置及电子设备,该方法包括:获取当前轮胎的轮边驱动力、轮边载荷、轮胎纵向速度和轮胎角速度;根据轮边驱动力和轮边载荷;确定当前轮胎的附着系数;根据轮胎纵向速度和轮胎角速度,确定当前轮胎的纵向滑动率;根据当前轮胎的附着系数和纵向滑动率,确定对应的切线刚度;利用切线刚度和当前轮胎的附着系数,构造当前轮胎的轮胎状态矩阵;基于预设的高斯分布算法,根据轮胎状态矩阵,确定当前轮胎的路面峰值附着系数。上述方案提供的方法,通过实时监控当前轮胎的附着系数和纵向滑动率,来检测当前轮胎的路面峰值附着系数,提高了路面峰值附着系数的检测结果的准确性,为提高车辆的安全性奠定了基础。


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    Title :

    Pavement peak adhesion coefficient detection method and device and electronic equipment


    Additional title:

    一种路面峰值附着系数检测方法、装置及电子设备


    Contributors:
    LI QIN (author) / LIU ZHIFENG (author)

    Publication date :

    2021-04-30


    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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