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:
Feb. 02, 2021
Filed:
Nov. 21, 2018
Applicants:
Ernesto Inoa, Glendora, CA (US);
Yujiang Wu, La Verne, CA (US);
Justim William V. Jones, Irvine, CA (US);
Inventors:
Ernesto Inoa, Glendora, CA (US);
Yujiang Wu, La Verne, CA (US);
Justim William V. Jones, Irvine, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/18 (2016.01); H02P 21/22 (2016.01);
U.S. Cl.
CPC ...
H02P 21/18 (2016.02); H02P 21/22 (2016.02); H02P 2207/05 (2013.01);
Abstract
A low cost and efficient method and apparatus for calibrating high performance internal permanent magnet motors that involves starting from an initial estimation of the rotor position and improving the estimation incrementally by successively commanding various current vectors and making adjustments to the estimated initial position according to the rotor's physical reaction to such current vectors.