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:
Oct. 27, 2015
Filed:
Apr. 24, 2014
Applicant:
Okuma Corporation, Niwa-gun, Aichi, JP;
Inventors:
Masahiro Maeda, Aichi, JP;
Satoshi Eguchi, Aichi, JP;
Assignee:
OKUMA CORPORATION, Niwa-Gun, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 13/02 (2006.01); G05B 19/404 (2006.01);
U.S. Cl.
CPC ...
G05B 13/021 (2013.01); G05B 19/404 (2013.01); G05B 2219/41154 (2013.01);
Abstract
A position controller sets a variable friction compensation value which varies in accordance with a change in sliding characteristics by providing a variable friction compensation value calculation unit that includes a sliding torque normalization calculation unit that normalizes a sliding torque at a predefined speed; a compensation value amplifying ratio calculation unit that calculates a compensation value amplifying ratio based on the sliding torque at the normalized speed; and multipliers.