Closed loop control method for hydraulic apparatus

Details Closed loop control method for hydraulic apparatus Closed loop control method for hydraulic apparatus

1984-05-24

1986-12-16

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318632, 318302, G05B 1300

Patent

active

046299548

ABSTRACT:
A non-linear function f(A) of an effective value D' with respect to a desired value A regarding speed, pressure or the like of an actuator of a hydraulic apparatus in a closed loop control for the hydraulic apparatus is operated and a value regarding quantity of electricity to be applied to a valve of a drive mechanism of the hydraulic apparatus is outputted as a non-linear function f(A) in a case where a non-linear function D=f(A) is established between the desired value A and an effective value D regarding speed, pressure or the like of the actuator in the opened loop control for the hydraulic apparatus.

REFERENCES:
patent: 4282467 (1981-08-01), Gruesbeck
patent: 4369400 (1983-01-01), Turner
patent: 4386626 (1983-06-01), Hehl
patent: 4404505 (1983-09-01), Swanson
patent: 4427896 (1984-01-01), Waldron
patent: 4486693 (1984-12-01), Hamati

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