Motor vehicle suspension with damper having rotatable member pos

Details Motor vehicle suspension with damper having rotatable member pos Motor vehicle suspension with damper having rotatable member pos

1991-08-15

1992-09-29

Rice, Kenneth R.

Land vehicles

Wheeled

Running gear

280714, 188299, 188319, B60G 1126

Patent

active

051509156

ABSTRACT:
A motor vehicle suspension system in which a motor drives a rotatable member through a plurality of rotational positions producing distinct damping characteristics provides a position feedback voltage on a single feedback line for low cost, easier packaging and greater reliability. Contact pads for the rotational positions are separated by electrically insulating regions; an electric contact member moves circularly with the rotatable member over the contact pads; and an electric circuit generates the position feedback voltage in a first voltage range when the electric contact member contacts any of the insulating regions, in a second voltage range when the electric contact member contacts a home position contact pad and in a third voltage range when the electric contact member contacts any other contact pad. A control updates a position count whenever the output voltage changes from the first to another voltage range; and the count is corrected, if necessary, when the third voltage range is detected.

REFERENCES:
patent: 4527676 (1985-07-01), Emura et al.
patent: 4606440 (1986-08-01), Buchanan, Jr. et al.
patent: 4620619 (1986-11-01), Emura et al.
patent: 4890858 (1990-02-01), Blankenship
patent: 4898027 (1990-02-01), Morra
patent: 4900054 (1990-02-01), Kessler
patent: 4909536 (1990-03-01), Hale
patent: 5000478 (1991-03-01), Kerastas

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