Sumitomo Rubber develops wheel security system

Sumitomo Rubber Industries (SRI) has developed its Sensing Core smart tyre technology to include a wheel security function which is set to reach production vehicles this year. Sensing Core is a flexible, sensor-less analysis and monitoring system with many different applications, including tyre pressure and wear, uneven loads and hazardous road conditions.

In recent years, accidents and injuries caused by detached wheels have become headline news in markets such as Japan, especially during the winter season, when car and truck drivers switch over to winter tyres and may not tighten the wheel nuts sufficiently.

The Government of Japan has expressed its desire to end loose wheel accidents and SRI believes that Sensing Core’s wheel detachment function is one step towards reaching this goal. In 2024, the function will be fitted to a car as standard equipment for the first time by an as-yet unnamed OEM customer. Discussions with additional vehicle manufacturers as said to be ongoing.

The wheel detachment function works independently of tyre make, model or size. It analyses wheel-speed signals and other information from the vehicle’s controller area network (CAN) to detect whether any wheel nuts are loose – by as little as one millimetre.

Sensing Core grew out of SRI’s original deflation warning system (DWS), an indirect tyre pressure monitoring system (TPMS). 15 OEMs from Europe, Japan, China and India fit DWS to their cars. Now Sensing Core is the centrepiece of the peripheral services SRI is developing to meet the future challenges of modern vehicles and mobility-as-a-service, under the Smart Tyre Concept umbrella.

“We envisage that Sensing Core will make a significant contribution to the evolution and further development of mobility in the coming autonomous driving society,” said Dr. Bernd Löwenhaupt, managing director Sumitomo Rubber Europe GmbH. “We will not only utilize the data obtained by Sensing Core, including road condition data, for vehicle control, but also pursue technological development with our eyes on the future integration of the data with societal information via cloud services.”

SRI’s fleet trials of cloud-based TPMS with a rental company in Japan reportedly help to demonstrate the efficiency, cost and safety value of tyre-based information. Another future application of Sensing Core is in cloud-based tyre-wear monitoring. In this scenario, software in the cloud receives usage information from the vehicle and accurately predicts the resultant tyre wear. When a tyre is ready for replacement, an alert is sent to the driver or fleet manager.

At the Consumer Electronics Show (CES) in January 2024, SRI announced its investment in Viaduct, an AI-powered, connected-vehicle analytics company with whom it has been working on a proof-of-concept since 2023. Sensing Core will integrate with Viaduct’s product to predict tyre health across a vehicle fleet.