Method for measuring length of imprint of pneumatic tire of wheel of car on ground, involves calculating footprint on ground based on plausibility condition and measured value corresponding to length of revolution

摘要

The method involves providing a sensor e.g. shock sensor, for measurement of radial acceleration of a wheel (2) comprising a pneumatic tire (4) that is arranged with a tread (4a). A set of values detecting variations of radial acceleration is transmitted by a transmitter. A length of revolution corresponding to a length of a sector separating two successive faces of the tire is calculated. A footprint on the ground is calculated based on a plausibility condition and a measured value corresponding to the length of the revolution.