Method and system for determining non-uniformity characteristics of a vehicle tire and rim
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United States of America Patent
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May 29, 2012
Grant Date -
Dec 10, 2009
app pub date -
Jun 5, 2009
filing date -
Jun 9, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method and system for a wheel assembly service system are provided. The system includes a rotatable spindle configured to receive a wheel assembly wherein the wheel assembly includes at least a rim and a tire. The system further includes a load device configured to apply a load to the tire during a rotation of the wheel assembly on the spindle, and a controller configured to determine a first force variation vector of the wheel assembly, initiating rotation of the tire with respect to the rim, determine a second force variation vector of the wheel assembly with the tire rotated with respect to the rim, and determine a force variation of at least one of the tire and the wheel using the first and second force variation vectors. The system also outputs at least one of the determined force variation vector values.
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