To improve accuracy of determining a wear state using a vibration level.SOLUTION: A tire wear detector 100 comprises: a travel speed detection unit 11 for detecting a travel speed of a vehicle 1; a vibration level detection unit 12 for detecting a vibration level of a tire installed to the vehicle 1; a road surface state determination unit 13 for determining whether or not a state of a road surface on which the vehicle 1 is traveling is a reference state; and a first wear state determination unit 15 which, when it is determined by the road surface state determination unit 13 that the state of the road surface is the reference state, compares the vibration level detected by the vibration level detection unit 12 with a reference value that corresponds to the travel speed detected by the travel speed detection unit 11 and thereby determines a wear state of a tire, this calculation being performed using a first database DB1 that indicates a correspondence relation between the travel speed of the vehicle 1 and the reference value compared with the vibration level of the tire.SELECTED DRAWING: Figure 1
【課題】振動レベルを用いた摩耗状態の判定精度を向上する。【解決手段】タイヤ摩耗検出装置100は、車両1の走行速度を検出する走行速度検出部11と、車両1に設けられているタイヤの振動レベルを検出する振動レベル検出部12と、車両1が走行中の路面の状態が基準状態であるか否かを判定する路面状態判定部13と、路面状態判定部13により路面の状態が基準状態であると判定された場合、車両1の走行速度とタイヤの振動レベルに対する比較対象となる基準値との対応関係を示す第1データベースDB1を用いて、振動レベル検出部12により検出された振動レベルを走行速度検出部11により検出された走行速度に対応する基準値と比較することにより、タイヤの摩耗状態を判定する第1摩耗状態判定部15と、を備える。【選択図】図1
TIRE WEAR DETECTOR
タイヤ摩耗検出装置
2019-08-22
Patent
Electronic Resource
Japanese
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