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:
Aug. 23, 2016
Filed:
Apr. 09, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yu-suke Imada, Osaka, JP;
Kenichi Suzuki, Osaka, JP;
Masaru Nishizono, Osaka, JP;
Hiroshi Fujiwara, Osaka, JP;
Abstract
Motor drive device () according to the present invention includes operation pattern generator (), position and speed controller (), load characteristic compensator (), and load characteristic measurement unit (). Operation pattern generator () increases an absolute value of acceleration, at which a motor speed or a motor position is changed, in each operation pattern. Load characteristic measurement unit () measures the load characteristic to set load characteristic compensator () when torque command indicator is less than or equal to a torque limit value. Load characteristic measurement unit () ends the measurement of the load characteristic without setting load characteristic compensator () when the torque command indicator is greater than the torque limit value.