AIRCRAFT AND METHOD FOR CONTROLLING THE SAME

• Main Authors: MATSUDA TAKESHI, HIGUCHI YOSUKE
• Format: Patent
• Language: English
• Published: 13.05.2013
• Subjects: AEROPLANES; AIRCRAFT; AVIATION; COSMONAUTICS; HELICOPTERS; PERFORMING OPERATIONS; TRANSPORTING

PROBLEM TO BE SOLVED: To prevent an airframe from becoming uncontrollable due to too great operation amount for a control stick, even when a flight control system of the airframe is a PAFCS system.SOLUTION: An aircraft 10 includes a mechanical linkage 18 which mechanically transmits the control input for the control stick 12 to a steering mechanism 16, a control input sensor 22 which detects the control input, and an FBW control-law computing part 24 which computes an FBW control-law command indicating a controlled variable of the airframe, corresponding to the detected control input. The aircraft 10 outputs a variation of the control input of the control stick, which is detected by the control input sensor 22, by a high-pass filter 30, sets the FBW control-law command as an SAS command by making a subtraction part 26 perform subtraction by the variation passing through the high-pass filter 30, and drives the steering mechanism 16 by adding an actuating variable of an SAS actuator 20, corresponding to the SAS command, to the control input of the control stick, which is transmitted by the mechanical linkage 18.