Title:
LINEAR MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/158732
Kind Code:
A1
Abstract:
A control device for controlling a linear motor selects either constant speed control for moving a movable element at a constant speed, or acceleration control for accelerating the speed of the movable element, on the basis of a position command indicating the distance that the movable element is to be moved per externally inputted unit time. When constant speed control is selected, a current command indicating a current value to be applied to the linear motor is calculated on the basis of the average speed, which is the average speed of the movable part, and a speed command. When acceleration control is selected, a current command is calculated on the basis of the speed of the movable element and a speed command, and a current is applied to the linear motor on the basis of the calculated current command.
Inventors:
NOMURA YUKI (JP)
YAMANAKA SHUHEI (JP)
YAMANAKA SHUHEI (JP)
Application Number:
PCT/JP2011/063275
Publication Date:
December 22, 2011
Filing Date:
June 09, 2011
Export Citation:
Assignee:
THK CO LTD (JP)
NOMURA YUKI (JP)
YAMANAKA SHUHEI (JP)
NOMURA YUKI (JP)
YAMANAKA SHUHEI (JP)
International Classes:
H02P25/06
Foreign References:
| JP2001327189A | 2001-11-22 | |||
| JP2006141140A | 2006-06-01 | |||
| JP2003289685A | 2003-10-10 | |||
| JP2006163533A | 2006-06-22 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
Download PDF:
Claims:
Previous Patent: SUBSTRATE FOR MOUNTING SEMICONDUCTOR ELEMENT AND METHOD FOR MANUFACTURING THE SUBSTRATE
Next Patent: WORK MACHINE
Next Patent: WORK MACHINE