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:
Jun. 13, 2006
Filed:
Dec. 17, 2004
Jens Schäfer, Herzogenaurach, DE;
Martin Steigerwald, Erlangen, DE;
Martin Overberg, Herzebrock, DE;
Jens Schäfer, Herzogenaurach, DE;
Martin Steigerwald, Erlangen, DE;
Martin Overberg, Herzebrock, DE;
INA-Schaeffler KG, Herzogenaurach, DE;
Abstract
A control structure for the adjusting motor () of an electric camshaft adjuster () in an internal combustion engine () is provided. The control structure includes a controller () which processes measuring signals of the internal combustion engine () to control data for the adjusting motor (). A controller () which has meaningful values for the adjusted setpoint rotational speed of the adjusting motor (), even when the input differential signal has a zero value, is obtained by applying the signal of an uncontrolled rotational speed () to the output signal () of a controlled setpoint rotational speed.