Title:
CONTROLLER OF FLUID PRESSURE ACTUATOR
Document Type and Number:
Japanese Patent JP3640414
Kind Code:
B2
Abstract:
PURPOSE: To provide a stable fluid pressure system by operating an input signal to a control value by a compensating means to which a primary and/or multilag modules are cascaded to a gain, and adding the operated signal to the output signal of a fluid pressure actuator so that this result maybe considered a feedback signal.
CONSTITUTION: A command signal output from an amplifier 5 is not only impressed to the electric-fluid pressure converting part 3 of a control valve 2 but also to a compensating circuit 7, and a signal Z after operation is added to the displacement signal y of a cylinder 1 (in fact, the output signal of a displacement sensor 4). A signal r after adding is fed back to the negative pressure introducing side of the amplifier 5. An input signal g to the control valve 2 is operated by a compensating means to which a primary and/or multilag modules are cascaded to a gain, and a system is prevented from being unstable even though the amplification factor of the amplifier 5 is practically and optionally selected without necessity of complicated control theory or experience, so that a fluid pressure actuator can be appropriately controlled.
More Like This:
| JPS60175801 | TELESCOPE CYLINDER |
| JPS60208603 | ELECTRIC-HYDRAULIC CONTROLLING EQUIPMENT |
Inventors:
Zenta Iwai
Kyoizumi Kozo
Hideyuki Takeuchi
Kyoizumi Kozo
Hideyuki Takeuchi
Application Number:
JP21424394A
Publication Date:
April 20, 2005
Filing Date:
August 16, 1994
Export Citation:
Assignee:
Suntest Co., Ltd.
International Classes:
F15B9/09; (IPC1-7): F15B9/09
Domestic Patent References:
| JP3033501A | ||||
| JP3033501A |
Attorney, Agent or Firm:
Hidetaka Tsutsui