A method and apparatus capable of estimating a tire wear amount even on snow-covered road surfaces accurately and reliably are provided. To that end, a differentiated acceleration waveform of a radial acceleration waveform of a tire is obtained, and an operation of calculating a leading-end differentiated peak value and a trailing-end differentiated peak value from the differentiated acceleration waveform is repeated a plurality of times. At the same time, a differentiated peak ratio, which is a ratio between the leading-end differentiated peak value and the trailing-end differentiated peak value, is calculated for each of the leading-end differentiated peak values and the trailing-end differentiated peak values obtained. Either one of the leading-end differentiated peak values and the trailing-end differentiated peak values, having a differentiated peak ratio within a lower limit range of 0.6 to 0.8 and an upper limit range of 1.0 to 1.2, or computed values of the leading-end differentiated peak values and the trailing-end differentiated peak values are extracted as the differentiated peak values for wear estimation. And the tire wear amount is estimated using the plurality of extracted differentiated peak values for wear estimation.
TIRE WEAR AMOUNT ESTIMATING METHOD AND TIRE WEAR AMOUNT ESTIMATING DEVICE
REIFENABNUTZUNGSAUSMASSSCHÄTZUNGSVERFAHREN UND REIFENABNUTZUNGSAUSMASSSCHÄTZUNGSVORRICHTUNG
PROCÉDÉ D'ESTIMATION DE QUANTITÉ D'USURE DE PNEU ET DISPOSITIF D'ESTIMATION DE QUANTITÉ D'USURE DE PNEU
2019-07-03
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / 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 |
TIRE WEAR AMOUNT ESTIMATING METHOD AND TIRE WEAR AMOUNT ESTIMATING DEVICE
European Patent Office | 2016
|Tire wear amount estimating method and tire wear amount estimating apparatus
European Patent Office | 2019
|European Patent Office | 2023
|European Patent Office | 2022
|European Patent Office | 2021
|