Bridgestone’s new sensor technology gathers tire data at low speed

Bridgestone Corp. has developed sensor technology it claims is capable of estimating wheel axle load and tire wear conditions even at low speeds, a parameter it said is critical for the emerging autonomous vehicle (AV) segment.

The new sensor technology measures strain — the amount of deformation of the rubber under the sensor — which is independent of speed, Bridgestone said, noting that AVs are expected to be operated at low speeds for enhanced safety.

Attached to a tire’s inner liner, the Smart Strain Sensors measure the change in strain that occurs when a tire makes contact with the road while in motion, Bridgestone said, claiming the technology is unique.