Tire Wear Estimation
AssigneeMelexis Technologies SA
InventorsJulien CANIONCQ, Ivan ZAGAN
Life of this patent
Estimating the term…
Abstract
A tire wear estimator includes a tire measurement system adapted to be mounted in or on an inner surface of the tire. The tire measurement system comprises a sensor adapted for sensing a physical property of the tire, and an acquisition system adapted for sampling a signal of the sensor into memory, to acquire a perturbation in the sampled data induced by a contact patch of the tire when the sensor is mounted in or on an inner surface of the tire. A sample rate of the acquisition system is high enough so at least one oscillation, which indicates a tread depth of the tire, becomes detectable in the sampled data in and/or around the perturbation.
Claims15
A tire wear estimator, comprising a tire measurement system which is adapted to be mounted in a tire or on an inner surface of a tire, the tire measurement system comprising a sensor adapted for sensing a physical property of the tire, and an acquisition system adapted for sampling a signal of the sensor into memory to acquire a perturbation in the sampled data which is induced by a contact patch of the tire wherein a sample rate of the acquisition system is high enough such that at least one oscillation, which is indicative of a tread depth of the tire, becomes detectable in the sampled data in and/or around the perturbation.
A method for estimating tire wear, the method comprising:
- sampling data of a sensor, which is mounted in or on an inner surface of a tire, and which is adapted for sensing a physical property of the tire;
- filling a buffer with the sampled data;
- identifying a perturbation in the sampled data, which is induced when a part of the tire where the sensor is mounted hits the ground;
- and
- wherein the sampling is done at a sample rate which is high enough such that at least one oscillation, which is indicative of a tire tread depth, becomes detectable in the sampled data in and/or around the perturbation.
Dependencies are inferred from the claim text.