A system for estimating a tread depth of a tire supporting a vehicle includes a processor in electronic communication with an electronic control system of the vehicle. A wheel speed signal processing module is in electronic communication with the processor, receives the measured wheel speed signal, and generates a processed wheel speed signal from the measured wheel speed signal. The fast Fourier transform calculation module receives the processed wheel speed signal and generates a fast Fourier transform curve. The summing module selects a predefined range of fast Fourier transform curves, generates a reference curve from the predefined range of fast Fourier transform curves, and determines a sum of residuals between the real-time fast Fourier transform curve and the reference curve. And the regression model determines an estimated value of the tire tread depth according to the sum of the residual errors.

    一种用于估计支撑车辆的轮胎的胎面深度的系统包括与车辆的电子控制系统电子通信的处理器。车轮速度信号处理模块与处理器电子通信,接收测量的车轮速度信号,并从测量的车轮速度信号生成处理后的车轮速度信号。快速傅里叶变换计算模块接收处理后的车轮速度信号并生成快速傅里叶变换曲线。求和模块选择快速傅里叶变换曲线的预定义范围,从快速傅里叶变换曲线的预定义范围生成参考曲线,并确定实时快速傅里叶变换曲线与参考曲线之间的残差之和。回归模型根据残差之和确定轮胎胎面深度的估计值。


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    Title :

    System for estimating tire tread depth using wheel speed


    Additional title:

    利用车轮速度估计轮胎胎面深度的系统



    Publication date :

    2024-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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