Patent ID: 11959828
Assignee: BRIDGESTONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC G

Claim 0:
1. A tire state estimation system for predicting a life of a tire based on a state of a crack generated on an outer surface of the tire, comprising:
a crack shape acquisition unit for acquiring the shape of the crack on the outer surface;
a crack information holding unit for holding a correspondence relationship in which at least either degree of opening or deviation width of the crack based on the shape of the crack is associated with depth of the crack; and
a crack depth estimation unit for estimating the depth of the crack based on the shape of the crack acquired by the crack shape acquisition unit and the correspondence relationship;
wherein the crack shape acquisition unit acquires a length of the crack and an angle in an extending direction of the crack with respect to a tire radial direction as the shape of the crack, in addition to at least one of the degree of opening and the deviation width of the crack.