Electrohydraulic servodevice for position control

Details Electrohydraulic servodevice for position control Electrohydraulic servodevice for position control

1989-09-13

1991-11-12

Kwon, John T.

Power plants

Pressure fluid source and motor

Condition responsive control of or by input to input pump...

60475, 60476, F15B 903

Patent

active

050637401

ABSTRACT:
The position of a controlled system is regulated with a hydraulic actuator, which is directly linked to a hydraulic pump. The pump is driven in either direction by an electric motor, which is controlled by the output of rotatory direction and driving power generated from a controller based on a desired position and the feedback input of the actual position of the controlled system and the rotatory speed of the electric motor. The controller further includes a gain-variable amplifier for amplifying a deviation of the controlled value from a desired value with a gain characteristic curve of a shape appropriate to the controlled system, attaining a stable and well follow-up control of position.

REFERENCES:
patent: 2276591 (1942-03-01), Ray
patent: 2814183 (1957-11-01), Holzbock
patent: 3374625 (1968-03-01), Stuart
patent: 3570243 (1971-03-01), Comer et al.
patent: 3798525 (1974-03-01), Cooper
patent: 4041704 (1977-08-01), Gygli
patent: 4404626 (1983-09-01), Aoyama
patent: 4535277 (1985-08-01), Kurakake
patent: 4816734 (1989-03-01), Kurakake et al.
patent: 4912386 (1990-03-01), Lurie
Hyoron-sha, "Immediate Useful Functions and the Best Use of Sensor", Jul. 15, 1982, Japan.
Nireco News, "On-Off Actuator", No. 1, Jul. 1970.
"Electric-Hydraulic Edge-A-Liner Manual", Yasukawa Electric Manufacturer, Feb. 3, 1970, Japan.
OHM-sha, "Reader for Utilizing the Latest Power-Device", Nov. 30, 1987, Japan.

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