HIGH-MANEURABILITY AIRPLANE ROLL CONTROL SYSTEM Russian patent published in 2008 - IPC B64C13/18 G05D1/08 

FIELD: transportation.

SUBSTANCE: automatic control system (ACS) of the airplane contains a roll angle selector, roll angle and angular speed pickups, the first and second adders connected with the roll angle pickup, the third adder and an integrating device. The ACS comprises additionally a unit of module isolation, the first comparator and switching module, all connected in series. Also the said system incorporates the sign determination device and multiplier with its output connected to the second input of the first switching unit. The said system includes the forth adder connected in series with the inverter, the second switching unit and the memory, a differential analyser connected in series with the second comparator with its output connected to the second input of the second switching unit, and the fifth adder, the third comparator and the "pure lag" device. One of inputs of the first adder is connected to the output of the roll angle selector while its output is connected to inputs of the unit of module isolation, those of the sign determination device and to the first input of the third adder. The second input of the latter is connected to the output of the first switching unit, while its output is connected to the first input of the integrating device and to corresponding input of the second adder, one more input is connected with the roll angular speed pickup. The first input of the inverter is connected to the output of the integrating device connected to the first input of the fifth adder. The second input of the inverter is connected to the output of the second adder connected to the second input of the fifth adder. The input of the differential analyser is connected to the output of the roll angle pickup.. The output of the memory is connected to the third input of the fifth adder the output of which is the ACS output and is connected to the third comparator inputs and those of the "pure lag" device, which are connected to the second inputs of the integrator and the forth adder, respectively. The ACS is not susceptible to the roll angle pickup signal spasmodic variations. The presence of the signal of errors between current and preset roll angle values and the integral of the said signal in the signal controlling the side channel drive increases the ACS reaction.

EFFECT: dynamic restriction of the control signal reduces excess control effects in transfer processes.

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