METHOD AND DEVICE FOR CONTROL OF ELECTROPNEUMATIC ACTUATOR Russian patent published in 1999 - IPC

FIELD: defence equipment, guided missiles. SUBSTANCE: the method consists in measurement of control surface angle δ, comparison of the measured value with the preset one, generation of control signal to the actuator in accordance with control surface angle control error Δδ passed via a correcting filter with limitation to the first input of the actuator relay element; for generation of control signal to the actuator the control surface angle signal is additionally inverted and applied via a differentiator and without conversion respectively to the second and third inputs of the relay element, the setting signal is passed without conversion to the fourth input of the relay element. The device realizing the method has a set unit, subtraction unit, correcting filter with limitation, relay element, power amplifier, control electromagnet, actuating air motor, feedback transmitter, differentiator and an inverter. EFFECT: enhanced speed of response and accuracy of operation of missile electropneumatic actuator, enhanced quality of transient (reduced overregulation) both at processing of sampled control signals by the actuator and when the actuator operates in holding of zero position in the absence of sampled control signals. 2 cl, 2 dwg