JPS55163302A - Estimation of physical quantity in hydraulic servo-system - Google Patents
Estimation of physical quantity in hydraulic servo-systemInfo
- Publication number
- JPS55163302A JPS55163302A JP7073279A JP7073279A JPS55163302A JP S55163302 A JPS55163302 A JP S55163302A JP 7073279 A JP7073279 A JP 7073279A JP 7073279 A JP7073279 A JP 7073279A JP S55163302 A JPS55163302 A JP S55163302A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- speed
- addition point
- acceleration
- subtraction
- 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.)
- Granted
Links
Landscapes
- Servomotors (AREA)
Abstract
PURPOSE: To disuse detectors for speed and acceleration by detecting pressures in an oil cylinder on both sides of a piston by pressure detectors and the position of the piston by a position detector respectively to estimate the speed, acceleration, and other fators of the piston.
CONSTITUTION: Pressures P1 and P2 on both sides of a piston 2 in an oil cylinder 1 are detected by pressure detectors 5 and 6, and respectively conducted through coefficient factors 11 and 12 representing cross-sectional areas of the cylinder for obtaining forces F1' and F2' given on the both ends of the piston. Forces thereof are brought into a subtraction at an addition point (a) for obtaning a driving force F'. This force F', after the subtraction of the output of a function generating factor 16 into which the estimated speed of the piston is input at an addition point (b), is sent to an addition point (c) via a coefficient factor 13 representing the reciprocal number of the equivalent mass of the piston 2 and a load 4. Meanwhile, the position of a piston 2 is detected by a position detector 7, and a signal X' thereof is added to an addition point (e). After being compared with an estimated value, its deviation is added to addition points (c) and (d) via coefficient factors 17 and 18 for modifying estimated values of acceleration and speed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7073279A JPS5825881B2 (en) | 1979-06-06 | 1979-06-06 | Physical quantity estimation method in hydraulic servo system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7073279A JPS5825881B2 (en) | 1979-06-06 | 1979-06-06 | Physical quantity estimation method in hydraulic servo system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55163302A true JPS55163302A (en) | 1980-12-19 |
JPS5825881B2 JPS5825881B2 (en) | 1983-05-30 |
Family
ID=13439992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7073279A Expired JPS5825881B2 (en) | 1979-06-06 | 1979-06-06 | Physical quantity estimation method in hydraulic servo system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5825881B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6267305A (en) * | 1985-09-14 | 1987-03-27 | マンネスマン・レツクスロ−ト・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Hydraulic type drive |
JPH03223504A (en) * | 1990-01-29 | 1991-10-02 | Daikin Ind Ltd | Position control mechanism of actuator |
CN107636320A (en) * | 2015-05-18 | 2018-01-26 | 赛峰电子与防务公司 | For the method for the external force for estimating to act on electric hydrostatic actuator |
-
1979
- 1979-06-06 JP JP7073279A patent/JPS5825881B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6267305A (en) * | 1985-09-14 | 1987-03-27 | マンネスマン・レツクスロ−ト・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Hydraulic type drive |
JPH03223504A (en) * | 1990-01-29 | 1991-10-02 | Daikin Ind Ltd | Position control mechanism of actuator |
CN107636320A (en) * | 2015-05-18 | 2018-01-26 | 赛峰电子与防务公司 | For the method for the external force for estimating to act on electric hydrostatic actuator |
CN107636320B (en) * | 2015-05-18 | 2019-08-13 | 赛峰电子与防务公司 | Method for estimating to act on the external force of electric hydrostatic actuator |
Also Published As
Publication number | Publication date |
---|---|
JPS5825881B2 (en) | 1983-05-30 |
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