US 6,650,973 B2 · Flight control system

Abstract

A flight control system for controlling a flight of an aircraft, having an actuator for actuating flight control surfaces and outputting a feedback signal in return; a flight control computer for operating the actuator; and an actuator control computer for controlling the operation of the actuator. The flight control computer comprises an FCC processor for generating an instruction signal to operate the actuator on the basis of an operational instruction signal inputted from a pilot and a state signal indicative of the state of an aircraft, and generating a reference signal on the basis of the instruction signal and the feedback signal from the actuator. The actuator control computer comprises an ACC processor for generating an actuator control signal on the basis of the instruction signal generated by the FCC processor and the feedback signal from the actuator, and a servo amplifier for amplifying the actuator control signal generated by the ACC processor to be outputted to the actuator. The actuator is operative to actuate the flight control surfaces in accordance with the actuator control signal amplified by the servo amplifier and output a feedback signal in return. The flight control computer further comprises a comparing section for comparing the actuator control signal generated by the ACC processor with the reference signal generated by the FCC processor to detect a failure wherein the FCC processor is different in design from the ACC processor.

Claims11

Dependent claims

A flight control system for controlling a flight of an aircraft, comprising:

an actuator for actuating flight control surfaces and outputting a feedback signal in return;
a flight control computer for operating said actuator;
and
an actuator control computer for controlling the operation of said actuator;
said flight control computer comprising:
an FCC processor for generating an instruction signal to operate said actuator on the basis of an operational instruction signal inputted from a pilot and a state signal indicative of the state of an aircraft, and generating a reference signal on the basis of said instruction signal and said feedback signal from said actuator,
said actuator control computer comprising:
an ACC processor for generating an actuator control signal on the basis of said instruction signal generated by said FCC processor and said feedback signal from said actuator, and
a servo amplifier for amplifying said actuator control signal generated by said ACC processor to be outputted to said actuator,
said actuator is operative to actuate said flight control surfaces in accordance with said actuator control signal amplified by said servo amplifier and output a feedback signal in return,
whereby
said flight control computer further comprises:
a comparing section for comparing said actuator control signal generated by said ACC processor with said reference signal generated by said FCC processor to detect a failure,
said FCC processor is different in design from said ACC processor.

11 more elements

Dependencies are inferred from the claim text.

Flight control system

Life of this patent

Flight control system

Life of this patent

Abstract

Claims11