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.

Date of Patent:
May. 01, 2018

Filed:

Apr. 10, 2017
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventors:

Shoutarou Hashimoto, Yamanashi, JP;

Tadashi Okita, Yamanashi, JP;

Yuuki Morita, Yamanashi, JP;

Assignee:

FANUC CORPORATION, Yamanashi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/54 (2006.01); G05B 11/01 (2006.01); G05B 19/404 (2006.01); G05B 19/31 (2006.01); G05B 19/4062 (2006.01);
U.S. Cl.
CPC ...
G05B 19/404 (2013.01); G05B 19/31 (2013.01); G05B 19/4062 (2013.01); G05B 2219/34013 (2013.01); G05B 2219/50297 (2013.01);
Abstract

To provide a motor control device, motor control method, and non-transitory computer readable medium recording a motor control program, which add a backlash correction amount to a position command for a motor at the appropriate timing. Included are a first position detection part that detects a first position which is a position of a movable part; a second position detection part that detects a second position which is a position of a driven part; a positional error calculation part that calculates positional error, which is deviation between a converted first position detected value and a second position detected value; and a backlash correction part that adds a backlash correction amount when the absolute value for the variation of the positional error since reversal of a position command was detected exceeds the predetermined reference value.


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