This is an open access article distributed under the CC BY 4.0
Volume 19 article 761 pages: 37 - 47
Elevators are surfaces of flight control, typically at the rear of an aircraft to control the pitch of the plane, the angle of
attack and the wing lift. The most critical actuation device is longitudinal aircraft control, and its failures will result in
a catastrophic aircraft crash. This paper proposes a Highly Redundant Fault Tolerant Control (HRFTC) policy for the
aircraft to accommodate faults in the critical sensors and actuators. Modified Triple Modular Redundancy (MTMR)
has been proposed for the sensors and Dual Redundancy (DR) has been proposed for the actuators. The working
of control laws, pilot order, signal conditioning, and failure are elaborated. Furthermore, the PID controller is used
for the adjustment of the position of the elevator by comparing it with a set point. The results show that when a fault
occurs, the system detects it successfully and tolerates it quickly without disturbing the flight of aircraft. The study is
significant for the avionics industry for manufacturing highly reliable machines for human and environmental safety.
The authors would like to thank to colleagues for suggestions
to improve the paper quality.
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