Patent ID: 7404318
Filing Date: 2008-07-29
Classification: B60C,B60T,G01M,G01N,Y10S

Abstract:
1. A method for the detection of an adherence characteristic between a tire with a deformable tread and a surface along which it is rolling, comprising the steps of: a) providing in the tread at least one first measuring element and at least one second element, each said tread element having a contact surface with the ground, the contact surface of the first measuring element being configured such that, during normal operation of a vehicle wheel equipped with the tire, the surfaces of the first and second elements come into contact with the ground on each revolution of the tire and, at least within a range of rolling conditions to be monitored, the contact surface of the first element slides relative to the ground during its passage through the contact area; b) generating a first signal that represents a tangential force in the contact surface of the first measuring element; c) detecting a variation of the first signal that characterizes a loss of adherence; d) producing an estimate of the friction potential in the contact surface of the first measuring element; and e) producing an estimate of adherence potential of the tire.