Torsional mode tire wear state estimation system and method

A tire wear state estimation system and method is disclosed. The system comprises at least one tire (12) for supporting a vehicle; a tire pressure measuring means affixed to the at least one tire (12) for measuring tire inflation pressure and for generating tire inflation pressure data; a tire torsional mode measuring means for measuring a tire torsional mode frequency and for generating tire torsional mode frequency data; a tire identification means for generating tire-specific frequency mode coefficients using tire-specific identification data; and tire wear estimation means for calculating an estimation of a tire wear state based upon the tire inflation pressure data, the torsional mode frequency data, and the tire-specific frequency mode coefficients.