The invention relates to the technical field of vehicle engineering, and provides a method for monitoring the abnormal state of a wheel, a monitoring device and a vehicle, and the method comprises the following steps: S1, when the wheel rotates, obtaining the vertical acceleration Az of the wheel, obtaining the centrifugal acceleration Ac according to the Az, and obtaining the running speed v of the vehicle through the combination of omega and the rolling radius Rt of a tire of the wheel; s2, comparing v obtained in S1 with a preset driving speed range v1 to v2 for triggering abnormal state monitoring, if v1 < = v < = v2, executing S3, otherwise, returning to S1; s3, carrying out delay calculation on the sequence value Az1 (k) of the vertical acceleration without Ac and a wavelet basis function of band-pass filtering to obtain a sequence value Az2 (j) of the vertical acceleration after band-pass filtering; and S4, according to the numerical value sigma z of the root-mean-square of the Az2 (j) and the numerical value Hz of the information entropy of the power spectrum, evaluating the run-out condition of the tire. In this way, real-time monitoring of the tire run-out condition is achieved, and a driver can conveniently and timely find out the problem of abnormal run-out of the tire.

    本发明涉及车辆工程技术领域,提供了一种用于车轮异常状态监测的方法、监测装置及车辆,包括以下步骤:S1、车轮转动时,获取车轮的垂向加速度Az,根据Az得出离心加速度Ac,再通过ω结合车轮的轮胎的滚动半径Rt得出车辆的行驶速度v;S2、将S1中得出的v与预设的触发异常状态监测的行驶速度范围v1至v2进行对比,若满足v1≤v≤v2,则执行S3,否则返回S1;S3、将滤除Ac的垂向加速度的序列值Az1(k)与带通滤波的小波基函数进行延迟计算,得到带通滤波以后的垂向加速度序列值Az2(j);S4、根据Az2(j)的均方根的数值σz和功率谱的信息熵的数值Hz,评估轮胎的跳动情况。如此,实现对轮胎跳动情况的时实时监测,便于驾驶人员及时发现轮胎异常跳动的问题。


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    Title :

    Wheel abnormal state monitoring method, monitoring device and vehicle


    Additional title:

    用于车轮异常状态监测的方法、监测装置及车辆


    Contributors:
    LIU HAITAO (author) / TANG SHUAISHUAI (author) / LIN YANMING (author) / ZHENG SIFA (author)

    Publication date :

    2024-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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