Patent ID: 8483976

Claim:
A method for estimating wear of a tire, comprising: detecting a radial acceleration of the tire with an acceleration sensor disposed on an inner surface side of a tire tread; calculating a standardized deformation speed in a radial direction of the tire from the detected radial acceleration of the tire; calculating a tread vibration level at a specific position and in a specific frequency range from the radial acceleration of the tire, the specific position being in a portion outside a contact patch of the tire tread and the tread vibration level changing with road surface roughness; correcting the calculated standardized deformation speed based on the calculated tread vibration level in the portion outside the contact patch and a relationship between a tread vibration level per degree of tire wear and a standardized deformation speed, which are determined in advance; and estimating a degree of tire wear based on the corrected standardized deformation speed.