Title:
【発明の名称】アクチュエータ制御装置
Document Type and Number:
Japanese Patent JP3344916
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To quickly move an actuator and stop it to a target value by automatically correcting the deviation of the return position, to be generated on a control valve mechanism caused by the ambient temperature and the manufacturing error. SOLUTION: In a hydraulic cylinder 3, pressure oil from a hydraulic pump 1 is supplied and discharged through a spool valve 6, and a rod 3C is slid and displaced. A spool 13 of the spool valve 6 is slid and displaced by an electromagnetic actuator 16, and the electromagnetic actuator 16 is controlled by a control unit 17 composed of a proportional computing circuit, an integral computing circuit, a compensating computing circuit, and a transient state judging circuit. The transient state judging circuit performs judgment of the transient state on the basis of a target value from a target valve setting unit 28, and the control unit 17 outputs a feedback control signal for controlling the hydraulic cylinder 3 to the electromagnetic actuator 16 on the basis of the judged result of the transient state.
Inventors:
Hiroshi Sato
Application Number:
JP4146797A
Publication Date:
November 18, 2002
Filing Date:
February 10, 1997
Export Citation:
Assignee:
Unisia Jecs Co., Ltd.
International Classes:
F01L1/34; F01L9/02; F02D13/02; F02D45/00; F15B9/09; G05B11/36; G05B11/42; (IPC1-7): F02D13/02; F01L1/34; F01L9/02; F02D45/00; F15B9/09; G05B11/36; G05B11/42
Domestic Patent References:
| JP6299813A | ||||
| JP566801A |
Attorney, Agent or Firm:
Kazuhiko Hirose