Method and apparatus for measuring irregular tread wear

Details Method and apparatus for measuring irregular tread wear Method and apparatus for measuring irregular tread wear

1991-12-16

1993-10-05

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

356431, B60C 1100, G01M 1702

Patent

active

052494608

ABSTRACT:
An apparatus and technique for measuring and analyzing the tread wear of a pneumatic tire. The tire is indexed about its axis. Between the indexing steps, a laser scanner obtains data from the tread surface. This data is normalized to eliminate any out-of-roundness of the tire data. Noise spikes are removed and replaced with values attributable to valid data. From the data, a reference curve corresponding to a lateral sector of the tire is devised. The data from actual lateral sectors is then compared to the reference curve by a curve-fitting process and the deviation between the actual data and the reference curve establishes the degree of irregular wear of the tire at that lateral point.

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