216 タイヤ変形計測に基づいたインテリジェントタイヤ(OS6-2 非破壊評価と構造モニタリング,OS6 非破壊評価と構造モニタリング)

抄録

Measurement of strain of tires in-service is effective to improve reliability of tires and ABS system. In previous studies, we developed a patch type strain sensor for automobile tires. The present study introduces the utilization model of strain data for an optimized braking control and road condition warning system. The relationship between strain changes on the inner surface of pneumatic tires, simulating sensor output, and mechanical tire parameters, such as contact patch length, effective radius, slip ratio, and friction coeffecient is examined. Calculations are carried out using finite element analysis with a simulation of the strain sensor signal when a tire rotates.