Process for the determination of unbalance
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United States of America Patent
Stats
-
Oct 22, 1991
Issued Date -
N/A
app pub date -
Nov 6, 1989
filing date -
Mar 29, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is provided for determining the unbalance of the wheels of a motor vehicle under test by means of unbalance measuring equipment. Such equipment is operated with a d.c. voltage supply in the form of the battery of the vehicle under test which functions as the sole source of that supply. The driven wheels of the vehicle under test are accelarated by the vehicle engine until a constant wheel speed is obtained within a given range. The unbalance values of the driven wheels at constant wheel speed are determined and appropriate correction is made. Wheel driving structure may also be provided for rotating the non-driven wheels of the vehicle under test to determine the unbalance of these wheels. The wheel driving structure for rotating the non-driven wheels is also powered by a d.c. voltage source in the form of the vehicle battery.
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