JPS5680511A - Electric oil hydraulic servo-device - Google Patents
Electric oil hydraulic servo-deviceInfo
- Publication number
- JPS5680511A JPS5680511A JP15802479A JP15802479A JPS5680511A JP S5680511 A JPS5680511 A JP S5680511A JP 15802479 A JP15802479 A JP 15802479A JP 15802479 A JP15802479 A JP 15802479A JP S5680511 A JPS5680511 A JP S5680511A
- Authority
- JP
- Japan
- Prior art keywords
- servo
- gain
- origin
- amplifier
- valve
- 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
Abstract
PURPOSE: To minimize the effect of nonlinear element in contact with a servo-valve in the above-identified system which is used for testers and electrically increase the gain of the entire servo-system for stabilizing the system by reducing the gain near the origin and increasing the gain of the servo- amplifier.
CONSTITUTION: To electrically increase the gain of the entire servo-system, the servo-amplifier 5 is provided with a bent plot gain characteristic F1 as is shown in the Figure, having a large slope portion F1a and then a small slop portion F1b. With the gain reduced in the neighborhood of the origin for the servo-amplifier 5 and reduced in the neighborhood of the origin for the servo-valve 7, the gain of the servo-system can be electrically increased to improve the response characteristic of the servo-valve 7.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15802479A JPS5680511A (en) | 1979-12-07 | 1979-12-07 | Electric oil hydraulic servo-device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15802479A JPS5680511A (en) | 1979-12-07 | 1979-12-07 | Electric oil hydraulic servo-device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680511A true JPS5680511A (en) | 1981-07-01 |
Family
ID=15662601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15802479A Pending JPS5680511A (en) | 1979-12-07 | 1979-12-07 | Electric oil hydraulic servo-device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680511A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110901A (en) * | 1982-12-14 | 1984-06-27 | Hitachi Constr Mach Co Ltd | Flow controller for hydraulic circuit |
JPS60167205U (en) * | 1984-04-12 | 1985-11-06 | 三菱重工業株式会社 | Direct-acting servo valve servo circuit |
US4747335A (en) * | 1986-12-22 | 1988-05-31 | Caterpillar Inc. | Load sensing circuit of load compensated direction control valve |
JPH07158765A (en) * | 1993-12-08 | 1995-06-20 | Uchida Yuatsu Kiki Kogyo Kk | Control method for operation of proportional solenoid valve |
-
1979
- 1979-12-07 JP JP15802479A patent/JPS5680511A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59110901A (en) * | 1982-12-14 | 1984-06-27 | Hitachi Constr Mach Co Ltd | Flow controller for hydraulic circuit |
JPH0315042B2 (en) * | 1982-12-14 | 1991-02-28 | Hitachi Construction Machinery | |
JPS60167205U (en) * | 1984-04-12 | 1985-11-06 | 三菱重工業株式会社 | Direct-acting servo valve servo circuit |
US4747335A (en) * | 1986-12-22 | 1988-05-31 | Caterpillar Inc. | Load sensing circuit of load compensated direction control valve |
JPH07158765A (en) * | 1993-12-08 | 1995-06-20 | Uchida Yuatsu Kiki Kogyo Kk | Control method for operation of proportional solenoid valve |
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