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:
Aug. 30, 2005
Filed:
Dec. 05, 2000
David Heisenberg, Gerlingen, DE;
Thomas Klotzbuecher, Rudersberg, DE;
Gunter Haas, Leonberg, DE;
Lutz Dorfmueller, Gerlingen, DE;
Henrik Siegle, Leonberg, DE;
Axel Wenzler, Stuttgart, DE;
Klaus Marx, Stuttgart, DE;
Franz Jost, Stuttgart, DE;
Ralf Noltemeyer, Wernau, DE;
Martin Freitag, Munich, DE;
David Heisenberg, Gerlingen, DE;
Thomas Klotzbuecher, Rudersberg, DE;
Gunter Haas, Leonberg, DE;
Lutz Dorfmueller, Gerlingen, DE;
Henrik Siegle, Leonberg, DE;
Axel Wenzler, Stuttgart, DE;
Klaus Marx, Stuttgart, DE;
Franz Jost, Stuttgart, DE;
Ralf Noltemeyer, Wernau, DE;
Martin Freitag, Munich, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A device for measuring an angle and/or the torque acting on a rotatable body is proposed according to the invention, whereby the rotational angle is detected by means of magnetic or optical sensors. In particular, in a preferred exemplary embodiment, two devices () are proposed, each of which comprises two optically readable code tracks. The two code tracks (or) on one device (or) are similar in design and are offset in relation to each other, so that associated sensors () output a digital signal. The rotational angle is calculated based on the lag between the two digital signals. In a further embodiment it is provided that a torsion element () having a known torsional stiffness is situated between the two devices (). Torque transferred by the rotatable body () can also be calculated therefore from the angular difference of the two devicesThe device is used preferably in the steering axle of a motor vehicle.