Method and apparatus for measuring unbalance of a motor vehicle wheel on a motor vehicle
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United States of America Patent
Stats
-
Jan 2, 1996
Grant Date -
N/A
app pub date -
Aug 25, 1993
filing date -
Aug 25, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for measuring unbalance of a vehicle wheel that is freely rotatable and mounted on a motor vehicle. The wheel is rotated during the measuring operation at a measurement speed and a mark on the wheel is sensed to provide accurate information concerning the angular wheel position of the rotating wheel. An incremental generator is operatively associated with the wheel for supplying a predetermined number of increments between each two sensings of the mark on the wheel, which is associated with a rotational angle of 360.degree.. The respective counter condition is used for detecting the rotational angle of the wheel.
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