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:
Nov. 25, 2008
Filed:
Mar. 04, 2005
Olaf Kwasny, Salzgitter, DE;
Klaus Wahnschaffe, Wolfsburg/Hattorf, DE;
Holger Manz, Sickte, DE;
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Abstract
A device and a method for measuring torque for an electromechanical steering system comprises a steering means that is connected in a driving manner to a steering mechanism via a torsion rod which is provided with an input shaft part () and an output shaft part (), an electric servomotor for driving the steering mechanism, the driving activity by the servomotor causing a relative rotational displacement between the input shaft part () and the output shaft part (), a sensor unit () for detecting a steering angle (d), a sensor unit () for detecting a rotor angle of the servomotor (), and a virtual torque sensor () in which a steering moment (τ) is determined from the steering angle (d) and the rotor angle.