Title:
油圧シリンダの制御システムおよび方法
Document Type and Number:
Japanese Patent JP3900537
Kind Code:
B2
Abstract:
Apparatus and method for controlling at least one hydraulic cylinder by the hydraulic fluid discharged by a hydraulic pump through a control valve. The hydraulic control system includes sensors to sense the conditions of the system and produce responsive signals. In the first stage, a controller determines an initial pump displacement output value and an initial spool displacement output value as a function of the system condition signals according to a plurality of feedback linearization control laws. In the second stage, a second controller produces an output signal for the hydraulic pump and an output signal for the control valve as a function of the initial pump displacement output value, the initial spool displacement value and an input command signal according to linear control laws.
Inventors:
Dietz Hans Pee
Application Number:
JP50514497A
Publication Date:
April 04, 2007
Filing Date:
June 11, 1996
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
F15B9/09; F15B21/08
Domestic Patent References:
| JP4326403A | ||||
| JP1176805A | ||||
| JP8135601A |
Foreign References:
| EP0190703A1 | ||||
| US5249421 | ||||
| US5261234 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo