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:
Sep. 27, 2016
Filed:
Sep. 29, 2014
Applicant:
Hamilton Sundstrand Space Systems International, Inc., Windsor Locks, CT (US);
Inventors:
Scott C. Bonnett, Chicago, IL (US);
Michael Carbone, Rockford, IL (US);
Assignee:
Hamilton Sundstrand Space Systems International, Inc., Windsor Locks, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/00 (2016.01); H02P 1/00 (2006.01);
U.S. Cl.
CPC ...
H02P 21/0089 (2013.01); H02P 1/00 (2013.01); H02P 21/0035 (2013.01);
Abstract
A method for controlling an electric motor includes inputting a quadrature-axis current (I) and a direct-axis current (I) into an electric motor, receiving speed feedback indicative of the speed of the electric motor, determining whether the speed of the electric motor increases given the input I, and controlling the Ito increase the speed of the electric motor by selectively weakening the electromagnetic field if the speed of the electric motor does not increase given the input I.