Energy Harvesting from Triboelectric Nanogenerator Attached Inside Rolling Tire

Abstract

In this study, we developed a triboelectric nanogenerator (TENG) for intelligent tires. This TENG was adhered on the inner surface of a racing cart tire. The charged voltage and output voltage of the TENG were evaluated on the moving belt. The output voltage signals were observed at the contact patch position. The charged voltage to the $10 \mu \mathrm{F}$ capacitor of was found to be approximately 14 V at the speed of 16 km/h after the tire rolled for 15 min. These results suggest that TENG can work as an energy harvester for temperature and pressure sensors built into intelligent tires as well as for wireless transmission.