Patent ID: 8849500

Claim:
A system for predicting tire casing life remaining for a casing in a tire provided with tread rubber and with the casing, the casing positioned inwards from the tread rubber in a tire radial direction and including at least a carcass ply, the system comprising: a tire condition measurement unit configured to measure at least one characteristic value including tire internal pressure information indicating at least one of a tire condition and a vehicle running condition; a temperature history estimation unit configured to estimate a temperature history of at least one location in at least one casing structural member based on the characteristic value measured by the tire condition measurement unit; a member physical property calculation unit configured to calculate at least one current physical property value of the at least one casing structural member that degrades due to tire internal air temperature based on at least the tire internal pressure information and the temperature history for the at least one casing structural member estimated by the temperature history estimation unit and on physical property value information, acquired in advance by testing and stored in a database, including tire internal pressure, temperature history information for the at least one casing structural member, and a physical property value of the at least one casing structural member; and a remaining drivable distance prediction unit configured to predict a drivable distance of the tire until the current physical property value calculated by the member physical property calculation unit reaches a physical property value limit, set in advance, based on a difference between the current physical property value and the physical property value limit.