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:
Dec. 18, 2012
Filed:
Oct. 19, 2011
Applicant:
Stefan Gruener, Auenwald, DE;
Inventor:
Stefan Gruener, Auenwald, DE;
Assignee:
ZF Lenksysteme GmbH, Schwaebisch Gmuend, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B 69/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
So as to provide, with high accuracy, an actuating variable for actuating a torque control element in an electric vehicle steering system and achieve this with reduced complexity as compared to the known methods and devices, an actual torsion-bar torque (M) is detected, a differential torque is found from a predefined target torsion-bar torque (M) and the actual torsion-bar torque (M), and the actuating variable is determined by means of an output feedback controller, as a function of the differential torque.