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. 05, 2019
Filed:
May. 25, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/14 (2016.01); G05B 19/35 (2006.01); G05B 19/19 (2006.01); H02P 23/00 (2016.01);
U.S. Cl.
CPC ...
G05B 19/358 (2013.01); G05B 19/19 (2013.01); H02P 23/0004 (2013.01); G05B 2219/34432 (2013.01); G05B 2219/37312 (2013.01); G05B 2219/42152 (2013.01); H02P 2205/05 (2013.01); H02P 2205/07 (2013.01);
Abstract
A method, according to the present invention, of adjusting control parameters used in a control apparatus of an electric motor includes the steps of: computing a first frequency characteristic (Step); computing a present speed-proportional gain range (Step); computing a present mechanical-system characteristic constant (Step); computing a present proportional gain range (Step); computing a secular characteristic (Step); computing a secular speed-proportional gain range (Step); computing a secular proportional gain range (Step); and selecting proportional gain values (Step).