In order to provide a method for efficiently estimating the degree of wear, a method is provided for estimating the degree of wear of a tire using the contact time ratio, which is the ratio of the contact time with respect to the rotation time, and also using, as a measure of wear, a normalized deformation speed index obtained by normalizing, with the tire rotation time, an index of the deformation speed near the tire contact edge as calculated from the magnitude of the peak appearing in the radial acceleration waveform obtained by differentiating the tire radial acceleration detected by an acceleration sensor, wherein the measure of wear, the contact time ratio, an approximate formula for calculating the wearing of tires which is obtained in advance and shows the relationship between the measure of wear and the contact time ratio as obtained by running a plurality of tires having different sizes, and an approximate formula for calculating the time for new tires, are used to estimate the degree of wear of the tire.
为了提供高效地进行磨损的程度的估计的方法,设为如下一种方法,将用轮胎的旋转时间对轮胎接地端部附近的变形速度的指标进行标准化而得到的标准化变形速度指标设为磨损量,该变形速度的指标是根据在对由加速度传感器检测出的轮胎径向加速度进行微分得到的径向加速度波形中出现的峰的大小计算出的,并且使用该磨损量和接地时间比来估计轮胎的磨损的程度,该接地时间比是接地时间与旋转时间之比,在该方法中,使用所述磨损量、接地时间比、磨损轮胎近似式以及新轮胎时近似式来估计轮胎的磨损的程度,该磨损轮胎近似式是预先求出的表示使轮胎尺寸互不相同的多个轮胎行驶而得到的磨损量与接地时间比的关系的式子。
TIRE WEAR ESTIMATION METHOD
轮胎磨损估计方法
2021-05-11
Patent
Electronic Resource
Chinese
IPC: | G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60C VEHICLE TYRES , Fahrzeugreifen |
TIRE WEAR ESTIMATION SYSTEM, TIRE WEAR ESTIMATION PROGRAM, AND TIRE WEAR ESTIMATION METHOD
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