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:
Jun. 29, 2010
Filed:
Jun. 07, 2006
Applicants:
Mathias Fernengel, Dietzenbach, DE;
Reiner Grossmann, Kelkheim, DE;
Frank Sader, Frankfurt am Main, DE;
Inventors:
Mathias Fernengel, Dietzenbach, DE;
Reiner Grossmann, Kelkheim, DE;
Frank Sader, Frankfurt am Main, DE;
Assignee:
Siemens VDO Automotive AG, Regensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Presented in an apparatus for controlling a brushless DC motor with a permanent magnet arranged on a rotor and a stator with windings. The apparatus includes an observer that is adapted to determine an estimated temperature of the permanent magnet as a function of the temperature of the windings, and determine at least one actuating signal for controlling the DC motor as a function of the estimated temperature of the permanent magnet.