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:
Jul. 03, 2018
Filed:
May. 06, 2016
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
Douglas Conrad Cameron, Ladera Ranch, CA (US);
Kevin T. Colangelo, Glendora, CA (US);
Suhat Limvorapun, Huntington Beach, CA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 9/18 (2006.01); H02P 7/00 (2016.01); H02P 6/182 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 6/182 (2013.01); H02P 27/06 (2013.01);
Abstract
A method and apparatus for controlling commutation of a motor. A voltage is measured at each of a plurality of windings of a motor using an electric circuit. A controller computes an overall back electromotive force for the motor using the voltage measured at each winding in the plurality of windings. The controller generates a result having either a first value or a second value based on the overall back electromotive force. The controller adjusts the commutation phase and the commutation period of the motor using the result.