Title:
CONTROL APPARATUS FOR LINEAR MOTOR, AND LINEAR MOTOR APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/043448
Kind Code:
A1
Abstract:
A control apparatus (10) is provided with: a position detection unit (108) for detecting the position of a mover of a linear motor (20) on the basis of changes in the output signal from a magnetic sensor (27); a position control unit (102) for calculating a speed command value on the basis of the position of the mover detected by the position detection unit (108), and an external-input position command value; an estimation unit (150) for estimating the speed by which the mover moves, from the values of currents flowing through a plurality of coils of the linear motor (20); a speed control unit (104) for calculating a current command value on the basis of the speed command value and the estimated moving speed; and a power converter (106) for supplying power to the plurality of coils in accordance with the current command value.
Inventors:
INOUE MASASHI (JP)
Application Number:
PCT/JP2011/071834
Publication Date:
April 05, 2012
Filing Date:
September 26, 2011
Export Citation:
Assignee:
THK CO LTD (JP)
INOUE MASASHI (JP)
INOUE MASASHI (JP)
International Classes:
H02K41/03; H02P25/06
Foreign References:
| JP2006087178A | 2006-03-30 | |||
| JP2004166326A | 2004-06-10 | |||
| JP2007089336A | 2007-04-05 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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Claims:
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