Land vehicles – Wheeled – Running gear
Patent
1991-08-15
1992-09-29
Rice, Kenneth R.
Land vehicles
Wheeled
Running gear
280714, 188299, 188319, B60G 1126
Patent
active
051509164
ABSTRACT:
A motor vehicle suspension system has a damper with a member rotatable through positions producing separate discrete damping characteristics. Feedback apparatus comprises a contact pad for each position, a brush rotating with the rotatable member, and an electric circuit generating an output voltage in a first voltage range when the brush does not contact a contact pad and in a second range when it does. The output voltage is repeatedly sampled to control a position count. An overrun detector responds to a predetermined change of the sampled output voltage from the second range to the first voltage range after deactivation of the motor at a selected contact pad to restart the motor so as to resume rotation of the rotatable member toward the selected contact pad.
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
Denton Gary R.
Hoptry David A.
Petrofes James M.
Shal David A.
General Motors Corporation
Rice Kenneth R.
Sigler Robert M.
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