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:
Oct. 02, 2012
Filed:
Oct. 30, 2009
Yasusuke Iwashita, Yamanashi, JP;
Tadashi Okita, Yamanashi, JP;
Hiroyuki Kawamura, Yamanashi, JP;
Junichi Tezuka, Yamanashi, JP;
Kenta Yamamoto, Yamanashi, JP;
Yasusuke Iwashita, Yamanashi, JP;
Tadashi Okita, Yamanashi, JP;
Hiroyuki Kawamura, Yamanashi, JP;
Junichi Tezuka, Yamanashi, JP;
Kenta Yamamoto, Yamanashi, JP;
Fanuc Ltd, Yamanashi, JP;
Abstract
A controller of an industrial machine provided with an electric motor, a peripheral apparatus and an amplifier includes a motor power-consumption calculation section, a power loss calculation section, a fixed power-consumption calculation section, and a total power-consumption calculation section. The motor power-consumption calculation section calculates motor power consumption by decomposing a motor current into a Q-phase current value and a D-phase current value, and multiplying the Q-phase current value with a motor rotation speed and a motor torque constant. The power loss calculation section calculates sum power loss of the motor and amplifier. The fixed power-consumption calculation section calculates fixed power consumption of the peripheral apparatus. The total power-consumption calculation section determines total power consumption of the industrial machine in a predetermined time period by integrating, for the time period, the calculated motor power consumption, sum power loss and fixed power consumption.