US 2015/0306707 A1 · UNIFORMITY CORRECTION USING PROGRESSIVE ABLATION

Abstract

Systems and methods for determining one or more ablation patterns for selectively removing material from tire bead locations to correct for non-uniformity characteristics, such as lateral force variation, of a cured tire are provided. An ablation order can be determined for a plurality of tracks along a bead of a tire based on sensitivity data associated with the plurality of tracks. One or more ablation patterns can be progressively determined according to a progression scheme defined by the ablation order. The progressive determination of ablation patterns can reduce the computational resources required for calculating the one or more ablation patterns and, in some cases, can reduce ablation time and total ablation for the tire. Moreover, the progressive determination of ablation patterns can provide for the correction of lateral force variation for both clockwise and counterclockwise rotation of the tire.

Claims20

Dependent claims

A method for reducing the magnitude of a uniformity parameter in a cured tire, comprising:

determining an ablation order for a plurality of tracks along a bead of a tire based at least in part on sensitivity data for the plurality of tracks;
progressively determining, with a computing device, one or more ablation patterns according to the ablation order to reduce the magnitude of the uniformity parameter for the tire;
and
selectively removing material from the bead of the tire in accordance with the one or more ablation patterns.

1 more element

A uniformity correction system for reducing the magnitude of a uniformity parameter in a cured tire, the system comprising:

a tire fixture on which a tire is configured to be securely mounted;
an ablation device configured to provide ablation of a tire mounted on said tire fixture, said ablation device configured to rotate about the tire during ablation of the tire;
and
a computer control system coupled to said ablation device and said tire fixture, said computer control system configured to determine an ablation order for a plurality of tracks along a bead of the tire based at least in part on sensitivity data for the plurality of tracks and to progressively determine one or more ablation patterns according to the ablation order to reduce the magnitude of the uniformity parameter for the tire, said computer control system further configured to selectively control the ablation device such that tire material is selectively removed from at least one bead of the tire in accordance with the one or more plurality of ablation patterns.

1 more element

Dependencies are inferred from the claim text.

Uniformity correction using progressive ablation

Life of this patent

Uniformity correction using progressive ablation

Life of this patent

Abstract

Claims20