Method and apparatus for measuring unbalance of a motor vehicle

Details Method and apparatus for measuring unbalance of a motor vehicle Method and apparatus for measuring unbalance of a motor vehicle

1993-08-25

1996-01-02

Noland, Thomas P.

Measuring and testing

Rotor unbalance

In situ

73460, 74 16, G01M 128

Patent

active

054798213

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.

REFERENCES:
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patent: 3686955 (1972-08-01), Butler
patent: 3815425 (1974-06-01), Skidmore
patent: 4109532 (1978-08-01), Donato
patent: 4555943 (1985-12-01), Ohta et al.
patent: 4956998 (1990-09-01), Goebel
Goebel, Eickhart, Raderwuchten am Fahrzeug, Journal "Autobaus Sep. 1982", pp. 912-920.

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