Measuring and testing – Rotor unbalance – In situ
Patent
1993-08-25
1995-12-26
Williams, Hezron E.
Measuring and testing
Rotor unbalance
In situ
74 16, G01M 128
Patent
active
054777283
ABSTRACT:
A method and apparatus for driving a motor vehicle wheel mounted on a motor vehicle. The wheel is freely rotatable for unbalance measurement thereof a friction wheel driven by an electric motor that is pressed against the tire with varying pressure force. The respective peripheral speeds of the friction wheel and the vehicle wheel in relation to the contact periphery at which the friction wheel bears against the vehicle wheel are ascertained and the electric motor is regulated in a continuous or discontinuous mode in dependence on a difference between the two measured peripheral speeds.
REFERENCES:
patent: 2731841 (1956-01-01), Merrill et al.
patent: 3911751 (1975-10-01), Shooter et al.
patent: 4324139 (1982-04-01), Muhlau
patent: 4956998 (1990-09-01), Goebel
patent: 4980621 (1990-12-01), Muller
Hofmann Werkstatt-Technik GmbH
Kwok Helen C.
Williams Hezron E.
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