PROBLEM TO BE SOLVED: To provide an evaluation method capable of obtaining hydroplaning performance evaluation of a tire in actual traveling and a test result with high correlation indoors.SOLUTION: Provided is a method for evaluating performance of a tire T, using a test device 1 having a drum 2 having a wet-state travel surface 7 on which the tire T can travel. The method comprises: a traveling step of traveling the tire T at a speed different from a speed of the drum 2 by second drive means 4, on the travel surface 7 of the drum 2 rotated by first drive means 3; a measurement step of measuring reaction force acting on the tire T during traveling step; and an evaluation step of evaluating performance of the tire, based on the reaction force. The travel step comprises a speed change step of controlling the first drive means 3 and the second drive means 4 so that a slip rate of the tire T to the drum 2 is made constant.SELECTED DRAWING: Figure 1
【課題】実車走行でのタイヤのハイドロプレーニング性能評価と相関の高い試験結果を室内で得る評価方法を提供する。【解決手段】タイヤTが走行可能なウェット状態の走行面7を具えたドラム2を有する試験装置1を用いて、タイヤTの性能を評価するための方法。第1駆動手段3により回転するドラム2の走行面7上を、第2駆動手段4によりドラムTの速度と異なる速度でタイヤTを走行させる走行工程、走行工程中のタイヤTに作用する反力を測定する測定工程、及び、反力に基づいて、タイヤの性能を評価する評価工程を含み、走行工程は、ドラム2に対するタイヤTのスリップ率が一定となるように第1駆動手段3及び第2駆動手段4を制御する速度変化工程を含む。【選択図】図1
TIRE PERFORMANCE EVALUATION METHOD
タイヤの性能評価方法
20.09.2018
Patent
Elektronische Ressource
Japanisch
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