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8 April 2009 Intelligent tires for improved tire safety based on strain measurements
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Intelligent tires, equipped with sensors for monitoring applied strain, are effective in improving reliability and control systems such as anti-lock braking systems (ABSs). However, since a conventional foil strain gage has high stiffness, it causes the analyzed region to behave unnaturally. The present study proposes a novel rubber-based strain sensor fabricated using photolithography. The rubber base has the same mechanical properties as the tire surface; thereby the sensor does not interfere with the tire deformation and can accurately monitor the behavior of the tire. We also investigate the application of strain data for an optimized braking control and road condition warning system. Finally, we suggested the possibility of optimized braking control and road condition warning systems. Optimized braking control can be achieved by keeping the slip ratio constant. The road condition warning would be actuated if the recorded friction coefficient at a certain slip ratio is lower than a 'safe' reference value.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ryosuke Matsuzaki and Akira Todoroki "Intelligent tires for improved tire safety based on strain measurements", Proc. SPIE 7295, Health Monitoring of Structural and Biological Systems 2009, 72952E (8 April 2009);

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