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:
Dec. 02, 2014
Filed:
Sep. 10, 2012
Naoto Sonoda, Minamitsuru-gun, JP;
Yukio Toyozawa, Minamitsuru-gun, JP;
Yasusuke Iwashita, Minamitsuru-gun, JP;
Naoto Sonoda, Minamitsuru-gun, JP;
Yukio Toyozawa, Minamitsuru-gun, JP;
Yasusuke Iwashita, Minamitsuru-gun, JP;
FANUC Corporation, Minamitsuru-gun, Yamanashi, JP;
Abstract
A control apparatus for a motor includes, a position detection unit which detects the position of a driven body, a positional error acquiring unit which acquires for each sampling cycle a positional error representing a deviation between the position command given to the motor and the position of the driven body detected by the position detection unit, a dead-zone processing unit which outputs the positional error by replacing the positional error with zero if the positional error acquired by the positional error acquiring unit lies within a predetermined dead-zone range, and a repetitive control unit which calculates an amount of correction such that the positional error output from the dead-zone processing unit is reduced to zero, and wherein: the motor is controlled based on the positional error acquired by the positional error acquiring unit and the amount of correction calculated by the repetitive control unit.