Successful development of battery-less tire perimeter sensors! Introducing tire internal power generation technology utilizing static electricity.
A joint development by Sumitomo Rubber Industries, Ltd. and Kansai University has been undertaken to realize the "tire internal power generation technology." We have successfully extracted electric power from the movement of charges generated by the triboelectric effect between positively and negatively charged films within the tire. By incorporating a power control circuit, we added the functionality to charge power from the power generation device. This enables power supply to sensors that require batteries, such as batteries. Additionally, the tire internal power generation technology could be one solution to the battery life issue of external sensor devices. 【Features】 ■ Generates power through tire rotation ■ Charges the power control circuit and confirms power supply to external sensors ■ Enables sensing without batteries ■ Ensures durability to withstand harsh conditions within the tire ■ Allows power supply to sensors that require batteries *For more details, please refer to the PDF document or feel free to contact us.
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【Other Features】 ■ Successfully extracted electric charge as power within the tire through the frictional charging phenomenon occurring between positively and negatively charged films. ■ Optimized the structure and materials related to frictional charging to maximize power generation. ■ Added functionality to charge power from the power generation device by incorporating a power control circuit. ■ Developed a system to charge the power control circuit from the power generation device and supply power to external sensors for operation. ■ Confirmed a power generation of over 800μW at a tire speed of 50 km/h, successfully activating external sensors and achieving continuous BLE communication. ■ This tire-based power generation technology could be one solution to extend battery life in external sensor devices. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Sumitomo Rubber is a comprehensive rubber product manufacturer that globally develops tire, sports, and industrial product businesses. Our company is engaged in the development of materials that possess rubber elasticity and strength, which can be shaped using 3D printers. The materials currently under development have successfully demonstrated the ability to exhibit rubber-like resilience after curing by forming a chemical network. Would you like to co-create new products using this material?