JPS62196955U - - Google Patents
Info
- Publication number
- JPS62196955U JPS62196955U JP8469786U JP8469786U JPS62196955U JP S62196955 U JPS62196955 U JP S62196955U JP 8469786 U JP8469786 U JP 8469786U JP 8469786 U JP8469786 U JP 8469786U JP S62196955 U JPS62196955 U JP S62196955U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- differential
- value
- pressure control
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Control Of Transmission Device (AREA)
- Servomotors (AREA)
Description
第１図は本考案圧力制御装置の一実施例を示す
全体システム図、第２図は同じくその動作タイム
チヤート、第３図は従来の圧力制御装置を示すブ
ロツク線図、第４図及び第５図は夫々同じくその
動作タイムチヤートである。
１……圧力センサ、２……圧力制御弁、３……
サーボ増幅器、４……電流増幅器、１５……減算
器（差圧検出手段），１６……比例増幅器、１７
……微分増幅器、１８……加算器、１９……スイ
ツチ（微分値加算禁止手段），２０……比較器（
目標圧モニタ手段）。
Fig. 1 is an overall system diagram showing one embodiment of the pressure control device of the present invention, Fig. 2 is an operation time chart thereof, Fig. 3 is a block diagram showing a conventional pressure control device, and Figs. 4 and 5 The figures are the same operation time charts. 1...Pressure sensor, 2...Pressure control valve, 3...
Servo amplifier, 4...Current amplifier, 15...Subtractor (differential pressure detection means), 16...Proportional amplifier, 17
... Differential amplifier, 18 ... Adder, 19 ... Switch (differential value addition prohibition means), 20 ... Comparator (
target pressure monitoring means).
Claims (1)
圧と目標圧との差圧を求める差圧検出手段を設け
、この差圧とその微分値との和値が小さくなるよ
う前記圧力制御弁をフイードバツグ制御する圧力
制御装置において、 前記目標圧が設定値未満になつたのを検出する
目標圧モニタ手段と、 目標圧が設定値未満の間前記微分値の加算を禁
止する微分値加算禁止手段とを設けてなる圧力制
御装置。[Claims for Utility Model Registration] A differential pressure detection means is provided, which includes a pressure control valve and detects the differential pressure between the output pressure controlled by the valve and the target pressure, and the sum value of this differential pressure and its differential value is small. The pressure control device performs feedback control of the pressure control valve so that the pressure control valve is controlled such that the target pressure monitor means detects when the target pressure becomes less than the set value, and prohibits addition of the differential value while the target pressure is less than the set value. A pressure control device comprising means for inhibiting differential value addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8469786U JPS62196955U (en) | 1986-06-05 | 1986-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8469786U JPS62196955U (en) | 1986-06-05 | 1986-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62196955U true JPS62196955U (en) | 1987-12-15 |
Family
ID=30939428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8469786U Pending JPS62196955U (en) | 1986-06-05 | 1986-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62196955U (en) |
-
1986
- 1986-06-05 JP JP8469786U patent/JPS62196955U/ja active Pending