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:
Nov. 22, 2022
Filed:
Aug. 12, 2019
Applicant:
Diehl Ako Stiftung & Co. KG, Wangen, DE;
Inventors:
Martin Weinmann, Bad Waldsee, DE;
Andreas Schmid, Wangen im Allgaeu, DE;
Sebastian Tinius, Lauf, DE;
Assignee:
Diehl AKO Stiftung & Co. KG, Wangen, DE;
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/70 (2006.01); H02P 23/00 (2016.01); H02P 25/00 (2006.01); H02P 29/024 (2016.01); H02P 23/26 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 29/0243 (2016.02); H02P 23/26 (2016.02); H02P 27/06 (2013.01); H02P 2201/15 (2013.01);
Abstract
In a method for detecting a motor phase fault of a motor arrangement, the motor phases of which are connected to a drive circuit having a DC voltage intermediate circuit and an inverter. A motor phase voltage at at least one of the motor phases with respect to a reference potential is captured while the inverter is switched off; and a voltage profile of the captured motor phase voltage is used to determine whether there is a motor phase fault on one of the motor phases of the motor arrangement.