The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1980
Filed:
Apr. 12, 1978
Applicant:
Inventors:
Wolfgang Misch, Stuttgart, DE;
Hans Kubach, Konntal-Mu, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60G / ;
U.S. Cl.
CPC ...
280 / ; 280707 ; 280D / ;
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.