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:
Oct. 22, 1996
Filed:
Mar. 29, 1995
Applicant:
Inventor:
Josef Buchl, Lenting, DE;
Assignee:
Audi AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123399 ;
Abstract
A control system for a butterfly valve in the intake tract of an internal combustion engine is described. The control system utilizes an actual value sensor to determine the relative position of a motor control part. The actual value sensor changes its sensitivity, using a high resolution only across a part of its total range of movement and a lower resolution across the remainder, allowing the same actual value sensor to be used for idle control and speed control.