Electronic position and velocity control system

Details Electronic position and velocity control system Electronic position and velocity control system

1975-05-12

1977-06-21

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318663, 187 29R, G05B 1300

Patent

active

040314421

ABSTRACT:
An electronic system for controlling the extent of motion and starting and stopping positions of a hydraulically driven member is described. The driven member is equipped with voltage sensitive means which provides a voltage indicative of the position of the driven member along the path of motion. The position indicative voltage is compared with reference voltages and the resulting comparison voltages actuate switching circuitry to effect changes in the travel speed of the driven member and to control the start and stop positions of the driven member. Hydraulic or mechanical apparatus responsive to the switching circuitry controls the motion extent and velocity of the driven member in accordance with the comparison voltages. The inventive control system thus provides accurate positioning and selected velocity changes along the path of motion of a member driven by a hydraulic source.

REFERENCES:
patent: 3209338 (1965-09-01), Romvari
patent: 3412300 (1968-11-01), Westenskow
patent: 3612220 (1971-10-01), Hall
patent: 3809986 (1973-02-01), Visser
patent: 3818300 (1974-06-01), Stroman

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