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. 27, 2019
Filed:
Feb. 10, 2016
Eonas It-beratung Und -entwicklung Gmbh, Berlin, DE;
Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Würzburg, Würzburg, DE;
Daniel Schikorra, Berlin, DE;
Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wurzburg, DE;
Abstract
A method for operating a brushless direct current motor wherein, by the energization of a plurality of armature coils which are arranged on a stator and form a three-phase current winding for generating a rotating field which rotates around the stator, and having three terminals, a rotating field is generated in order to drive a rotor, which is rotatable about an axis of rotation relative to the stator and has at least two opposing permanent magnet poles. For the determination of the position of the rotor relative to the stator a measurement voltage signal is applied between a first and second of the terminals, a resulting voltage is measured on a third of the terminals, a gradient value which indicates the gradient of the resulting voltage in a time interval is determined with reference to the progression over time of the resulting voltage.