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:
Apr. 21, 2020
Filed:
Jun. 11, 2018
Fanuc Corporation, Minamitsuru-gun, Yamanashi, JP;
Kazunori Iijima, Yamanashi, JP;
Yuusaku Oho, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A controller of a motor that drives a driven body, the controller includes: a command generating unit that generates a movement command for the motor; an inertia estimating unit that acquires feedback information of the motor and estimates an inertia on the basis of a predetermined estimation equation; a difference computing unit that computes a change in the inertia changed with machining based on the movement command of the command generating unit; and a comparing unit that compares a difference between the estimation results before and after the machining of the driven body estimated by the inertia estimating unit and the change in the inertia computed by the difference computing unit. the estimation equation of the inertia estimating unit is corrected on the basis of a comparison result of the comparing unit so that the difference between the estimation results matches a computation result obtained by the difference computing unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile