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Title:
SERVO CONTROLLER FOR DC MOTOR
Document Type and Number:
WIPO Patent Application WO/2003/026122
Kind Code:
A1
Abstract:
Deviation can be reduced in a steady decision region at the time of controlling a servo mechanism by detecting a fact that servo control entered the steady decision region of a target position and making the control constant (PI value) variable in the steady decision region.

Inventors:
Fujita, Youichi c/o MITSUBISHI DENKI KABUSHIKI KAISHA 2-3 (Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Kawamura, Satoshi c/o MITSUBISHI DENKI KABUSHIKI KAISHA 2-3 (Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Miyoshi, Sotsuo c/o MITSUBISHI DENKI KABUSHIKI KAISHA 2-3 (Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Application Number:
PCT/JP2001/008065
Publication Date:
March 27, 2003
Filing Date:
September 17, 2001
Export Citation:
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Assignee:
MITSUBISHI DENKI KABUSHIKI KAISHA (2-3 Marunouchi 2-chome Chiyoda-ku, Tokyo, Tokyo, 100-8310, JP)
Fujita, Youichi c/o MITSUBISHI DENKI KABUSHIKI KAISHA 2-3 (Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Kawamura, Satoshi c/o MITSUBISHI DENKI KABUSHIKI KAISHA 2-3 (Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
Miyoshi, Sotsuo c/o MITSUBISHI DENKI KABUSHIKI KAISHA 2-3 (Marunouchi 2-chome Chiyoda-ku, Tokyo, 100-8310, JP)
International Classes:
F02D11/10; F02M25/07; H02P7/06; F02D21/08; (IPC1-7): H02P5/06
Domestic Patent References:
WO1997006362A11997-02-20
Foreign References:
JP2000071541A2000-03-07
JPH02202387A1990-08-10
JPH11113278A1999-04-23
JPS61161988A1986-07-22
Other References:
See also references of EP 1429447A4
GALLAGHER, N.C. JR.; WISE, G. L.: "A Theoretical Analysis of the Properties of Median Filters", IEEE TRANSACTIONS ACOUSTICS, SPEECH, SIGNAL PROCESSING, vol. 26, 31 December 1981 (1981-12-31), pages 1136 - 1141, XP002580384
Attorney, Agent or Firm:
Tazawa, Hiroaki (7F Daito Bldg. 7-1, Kasumigaseki 3-chome Chiyoda-ku, Tokyo, 100-0013, JP)
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