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:
Dec. 11, 2018
Filed:
May. 22, 2017
Meidensha Corporation, Tokyo, JP;
Masayasu Kanke, Tokyo, JP;
Masami Nishihara, Tokyo, JP;
Kenji Kawakubo, Tokyo, JP;
Takao Akiyama, Tokyo, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
The purpose of the present invention is to provide a torque command generation device for generating a motor-generated-torque command that makes it possible to maximize excitation force while ensuring necessary acceleration, and the like, within a limited motor torque range. A torque command generation device () is provided with: a maximum torque calculation unit () for calculating, according to a motor speed, a maximum torque value for a motor-generated-torque-command signal value; a DC component limiter () for calculating a DC signal value; a surplus amplitude calculation unit () for calculating a surplus amplitude by subtracting the maximum torque value from the sum of the DC component value calculated by the DC component limiter () and an externally input excitation amplitude; a sine-wave transmitter () for generating a sine wave having an amplitude obtained by subtracting the surplus amplitude from a base amplitude; and a summing unit () for calculating the motor-generated-torque-command signal value by adding the DC component value and the sine wave value.