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:
Apr. 28, 2020
Filed:
Aug. 04, 2014
Applicant:
Maxon Motor Ag, Sachseln, CH;
Inventors:
Jean-Sebastien Mariethoz, Dietikon, CH;
Oliver Schultes, Zürich, CH;
Marko Tanaskovic, Zürich, CH;
Damian Frick, Zürich, CH;
Assignee:
MAXON MOTOR AG, Sachseln, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 25/00 (2006.01); G01D 5/14 (2006.01); H02P 6/185 (2016.01); H02P 6/18 (2016.01);
U.S. Cl.
CPC ...
G01R 25/00 (2013.01); G01D 5/14 (2013.01); H02P 6/183 (2013.01); H02P 6/185 (2013.01); H02P 2203/01 (2013.01); H02P 2203/03 (2013.01);
Abstract
The present disclosure relates to a method for determining the position of a rotor of a polyphase motor, e.g., the rotor angle, particularly at standstill. The method can include: applying voltage to phases of the motor, measuring a current in the phases, and determining the rotor position based on the measured current. According to the present disclosure, determination of the rotor position can be based on current values measured during a period where zero voltage is applied to the respective phases.