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:
May. 18, 2010
Filed:
Oct. 17, 2007
Yasusuke Iwashita, Yamanashi, JP;
Takahiro Akiyama, Yamanashi, JP;
Masakazu Niwa, Yamanashi, JP;
Geng LI, Yamanashi, JP;
Yasusuke Iwashita, Yamanashi, JP;
Takahiro Akiyama, Yamanashi, JP;
Masakazu Niwa, Yamanashi, JP;
Geng Li, Yamanashi, JP;
Fanuc Ltd, Yamanashi, JP;
Abstract
A motor control apparatus for computing or outputting motor load information, comprises: a storage unit which stores a function or table obtained in advance based on parameters used for the computation of the load information and on an actually measured value of a motor output or motor torque; and a load meter computing unit which computes the load information from the function or table stored in the storage unit by using the parameters used for the computation of the load information. With the above configuration, the load meter is computed in such a manner as to accurately indicate the load condition of a motor in real time over the entire speed range of the motor including the nonlinear control region of the motor, and the motor is controlled using the thus computed value or the computed value is displayed on a display unit.