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. 08, 2019
Filed:
Dec. 28, 2011
Martin Deitmerg, Luedenscheid, DE;
Marco Rutkowski, Altena, DE;
Stefan Garneyer, Hagen, DE;
Christian Schirp, Bochum, DE;
Oliver Maier, Attendorn, DE;
Klaus Hirschfeld, Luedenscheid, DE;
Bernd Vom Hedt, Hagen, DE;
Sven Kober, Bonn, DE;
Holger Hasselmann, Essen, DE;
Stefan Schroeder, Luedenscheid, DE;
Martin Deitmerg, Luedenscheid, DE;
Marco Rutkowski, Altena, DE;
Stefan Garneyer, Hagen, DE;
Christian Schirp, Bochum, DE;
Oliver Maier, Attendorn, DE;
Klaus Hirschfeld, Luedenscheid, DE;
Bernd vom Hedt, Hagen, DE;
Sven Kober, Bonn, DE;
Holger Hasselmann, Essen, DE;
Stefan Schroeder, Luedenscheid, DE;
Leopold Kostal GmbH & Co. KG, Luedenscheid, DE;
Abstract
A system for detecting the absolute rotational angle of a shaft rotatable more than one revolution includes a drive wheel connected to the shaft to rotate therewith. The drive wheel includes measurement sectors adjacent to one another in a circumferential direction. First and second driven wheels are engaged to the drive wheel. First and second sensors monitor rotational positions of the driven wheels to thereby detect an absolute rotational angle of the shaft. A third sensor monitors a relative angular position of the shaft in relation to a detected one of the measurement sectors to thereby detect the relative angular position of the shaft within one revolution of the shaft. The detected absolute rotational angle of the shaft is refined with the detected relative angular position of the shaft to thereby generate the absolute rotational angle of the shaft with more precision.