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:
Jan. 29, 2019
Filed:
May. 18, 2015
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Seok-hee Han, Dunlap, IL (US);
Carlos Nino Baron, Edwards, IL (US);
Jackson Wai, Dunlap, IL (US);
Ahmed Khalil, Peoria, IL (US);
Ernesto Inoa, Dunlap, IL (US);
Jesse Gerdes, Dunlap, IL (US);
James Michael Thorne, Peoria, IL (US);
Assignee:
Caterpillar Inc., Deerfield, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 25/08 (2016.01); H02P 6/18 (2016.01); H02P 6/185 (2016.01); H02P 25/089 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 6/185 (2013.01); H02P 25/08 (2013.01); H02P 25/089 (2016.02); H02P 27/06 (2013.01); H02P 6/18 (2013.01);
Abstract
A method for determining rotor position of a switched reluctance (SR) machine having a rotor and a stator is provided. The method may include injecting a test pulse into one or more idle phases of the SR machine, determining a decoupled flux value based at least partially on a total flux value corresponding to the test pulse and a mutual flux value, and determining the rotor position based at least partially on the decoupled flux value.