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. 21, 2019
Filed:
Nov. 04, 2015
Applicant:
Audi Ag, Ingolstadt, DE;
Inventor:
Bernhard Karl, Muhr am See, DE;
Assignee:
Audi AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/14 (2006.01); G01K 7/00 (2006.01); G01K 7/16 (2006.01);
U.S. Cl.
CPC ...
G01K 7/00 (2013.01); G01K 7/16 (2013.01); G01K 2205/00 (2013.01); G01K 2217/00 (2013.01);
Abstract
A method for determining an actual temperature of a coil of an electric machine, includes detecting a voltage in a no-load state of the electric machine; detecting a current strength in an induced short circuit state of the electric machine; calculating an actual stator coil resistance as a function of the voltage detected during the no-load state and the current strength detected during the active short circuit' state; and calculating the actual temperature of the coil of the electric machine as a function of the actual stator coil resistance.