Tire uniformity testing
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United States of America Patent
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Jul 12, 2005
Grant Date -
Oct 23, 2003
app pub date -
Apr 16, 2003
filing date -
Apr 22, 2002
priority date (Note) -
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Abstract
A method and apparatus for testing tires in a repeatable manner. Testing steps are performed in a manner that minimizes impact on the tire characteristics being measured. In one aspect, tire rotation reversal is performed at a zero crossing of a first harmonic of radial load variation exerted on a load carriage by the tire. In another aspect, load carriage retraction is performed so that the tire is unloaded when the tire stops rotating.
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