Patent ID: 8397558

Claim:
A tire performance measurement method for detecting at least one of ground contact pressure, shear stress and amount of skidding at a measurement point on a tread surface of a tire by a sensor by rotating the tire on a road surface and causing the measurement point to contact the sensor arranged on the road surface, the method comprising: setting an initial position of the tire, the initial position being a position where the measurement point is at a previously-set reference position and the tire is at a running start position on the road surface; causing the tire to run from the initial position to obtain a rotation angle difference θ between a tire rotation angle by which the tire rotates until the rotation axis of the tire passes over the arrangement position of the sensor and a tire rotation angle by which the tire rotates until the measurement point contacts the road surface; and setting the tire at the initial position again to rotate the tire by the angle θ without changing the running start position of the tire, and causing the tire to run from the set state to measure at least one of the ground contact pressure, shear stress, and amount of skidding.