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:
May. 25, 2021
Filed:
Apr. 10, 2019
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Dieter Depner, Lichtenau, DE;
Stefan Gerstl, Karlsruhe, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/34 (2020.01); H02P 6/00 (2016.01); H02P 21/06 (2016.01); H02P 29/024 (2016.01); H02K 11/215 (2016.01); B60J 1/14 (2006.01);
U.S. Cl.
CPC ...
H02P 6/007 (2013.01); H02K 11/215 (2016.01); H02P 21/06 (2013.01); H02P 29/024 (2013.01); B60J 1/14 (2013.01);
Abstract
A drive unit for an adjustment system for a motor vehicle has an adjustable element moved by an electric motor. The dive motor is operated electromagnetically. A magnetic field sensor is arranged on a pole pot or a housing of the drive motor to provide an electrical sensor signal dependent on a magnetic field. A control unit is configured to detect the magnetic field. The magnetic field varies on rotation of a rotor of the drive motor, so that a relative position change of the adjustable element can be derived from the electrical sensor signal.