Method for determining the length of the contact surface of a vehicle wheel on the ground

摘要

The method involves analyzing a signal representing a magnetic field measured by a magnetic sensor e.g. Hall effect sensor, in order to detect variations of magnetic field as a result of deformations, which is subjugated to a circumferential zone of a tire (7) located opposite to the magnetic sensor when the circumferential zone is in contact with ground and released from the ground in order to determine a contact area of the tire.