Title:
エアシリンダの圧力制御方法及び装置
Document Type and Number:
Japanese Patent JP4457299
Kind Code:
B2
Abstract:
A method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air cylinder by air servo valves. Pressures in the pressure chambers are detected by pressure sensors, signals of the detected pressures are feedback to a controller, and the degrees of opening of the air servo valves are adjusted by corresponding PID adjusters of the controller on the basis of the respective differences between instruction values and detection values. The displacement of the rod of the air cylinder is detected by a displacement sensor, and a detection signal of the displacement is fed back to the controller so that a gain of the PID adjuster is always changed in accordance with the detection signal of the displacement.
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Inventors:
Hisashi Yajima
Nobuhiro Fujiwara
Yoshiyuki Suzuki
Nobuhiro Fujiwara
Yoshiyuki Suzuki
Application Number:
JP2004239968A
Publication Date:
April 28, 2010
Filing Date:
August 19, 2004
Export Citation:
Assignee:
SMC Corporation
International Classes:
F15B9/08; F15B11/06
Domestic Patent References:
| JP8019873A | ||||
| JP2000301067A |
Foreign References:
| US5457959 |
Attorney, Agent or Firm:
Hiroshi Hayashi
Masahiko Goto
Hayashi Naoki
Masahiko Goto
Hayashi Naoki