Design of tribocharge sensor mounted inside tire

Abstract

Recent years, cars are equipped with various sensors, and various advanced controls are performed. In addition, “autonomous cars” are paid attention with the development of the IoT society, and vibration power generators and sensors for incorporating into tiresto more advanced control are required. Therefore, we made a prototype of the energy harvesting device for incorporating into the tire using triboelectrification phenomenon, performed tire running test on a drum and a numerical analysis. As a result, we found that it is important to use the silicone rubber with low hardness in order to improve the output of the tribocharge sensor mounted inside surface of the tire.