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:
Mar. 27, 2018
Filed:
Mar. 20, 2013
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Jie Ge, Stuttgart-Hausen, DE;
Paul Mehringer, Stuttgart, DE;
Assignees:
ROBERT BOSCH GMBH, Stuttgart, DE;
SEG AUTOMOTIVE GERMANY GMBH, Stuttgart, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/34 (2006.01); G01R 25/00 (2006.01); G01R 35/00 (2006.01); H02P 9/48 (2006.01); G01R 1/20 (2006.01); G01R 31/28 (2006.01); H02P 29/024 (2016.01);
U.S. Cl.
CPC ...
G01R 25/00 (2013.01); G01R 31/343 (2013.01); G01R 35/00 (2013.01); H02P 9/48 (2013.01); G01R 1/203 (2013.01); G01R 31/2829 (2013.01); H02P 29/0241 (2016.02);
Abstract
The method includes operating the synchronous machine in idle operation; recording a phase voltage measured value of the synchronous machine; ascertaining a phase voltage expected value by allocating stored characteristics map values for the phase voltage, for the exciting current and the recorded rotational speed of the synchronous machine; and comparing the phase voltage expected value to the phase voltage measured value. Also described is a diagnostic device for carrying out this method, as well as a corresponding computer program product.