Level regulator for automotive vehicles

Details Level regulator for automotive vehicles Level regulator for automotive vehicles

1978-04-12

1980-01-29

Peters, Jr., Joseph F.

Land vehicles

Body elevation or tilt

Establishing riding or trim height

280707, 280DIG1, B60G 1704

Patent

active

041858450

ABSTRACT:
A digital or analogue regulator circuit for activating a pump or pressure reducing valve, whose action respectively raises and lowers the body of a vehicle relative to the rear axle, each operating with a time delay so that temporary level changes will not initiate a regulatory process. Feedback circuits provide hysteresis. In both embodiments, level changes are represented by changes in the collector potential of a transistor and positive and negative feedback are provided to the base of the transistor to create the hysteresis or dead zone. In the digital embodiment, a counter generates the delay and the negative feedback.

REFERENCES:
patent: 3502347 (1970-03-01), Busignies
patent: 3830138 (1974-08-01), Joneleit
patent: 3873123 (1975-03-01), Joneleit
patent: 4105216 (1978-08-01), Graham et al.

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