Design of Intelligent Fault-Tolerant Flight Control System for Unmanned Aerial Vehicles

The onboard software of the flight control system (FCS) plays important role for small unmanned aerial vehicles’ performance. In this paper, the characteristics difficulties of the FCS software are analyzed firstly, then the compositions of the software are introduced using HIPO method. A genetic architecture of onboard software is presented to coordinate and organize the software and function modules, and an unique task scheduling strategy is designed and applied to realize multi-task processing. Finally, on the basis of the elementary operation procedure of the software, the flight experiment is implemented, and the feasibility and reliability of the onboard software is validated.

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New Fault-Tolerant Scheme for Flight Control System of Unmanned Aerial Vehicles

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.284-287.1883 ◽

2013 ◽

Vol 284-287 ◽

pp. 1883-1887

Author(s):

Ji Hui Pan ◽

Xiao Lin Zhang ◽

Sheng Bing Zhang ◽

Hao Ma

Keyword(s):

Control System ◽

Unmanned Aerial Vehicles ◽

Control Systems ◽

Flight Control ◽

Fault Tolerant ◽

Flight Control System ◽

Data Link ◽

Servo Actuator ◽

Fly Control ◽

Key Techniques

In complex systems like flight control systems etc., reliability is as important as performance. In order to improve the reliability of flight control system (FCS), the fault- tolerant technique was adopted. Three parts of the FCS which are Flight Control Fault Tolerant Computer, Redundancy sensor and Servo-actuator have been explored. The key techniques have been solved, such as Redundant Disposition, Synchronism of the Redundant Channels, Data link and Communication of Channels, etc. The experimental results show that the system meets with the fly control system’s demand of reliability.

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Pole Placement Technique Applied in Unmanned Aerial Vehicles Automatic Flight Control Systems Design

Land Forces Academy Review ◽

10.2478/raft-2018-0011 ◽

2018 ◽

Vol 23 (1) ◽

pp. 88-98 ◽

Cited By ~ 2

Author(s):

Róbert Szabolcsi

Keyword(s):

Control System ◽

Unmanned Aerial Vehicles ◽

Flight Control ◽

Systems Design ◽

Pole Placement ◽

Flight Control System ◽

Aerial Vehicles ◽

Control Systems Design ◽

Set Up ◽

Placement Technique

Abstract Unmanned aerial vehicles are widely spread and intensively used ones both in governmental and in private applications. The standard arrangements of the commercial-off-the-shelves unmanned aerial vehicles sometimes neglect application of the automatic flight control system onboard. However, there are many initiatives to ensure autonomous flights of the unmanned aerial vehicles via pre-programmed flight paths. Moreover, automatic flight control system can ensure necessary level of the flight safety both in VFR and IFR flights. The aim of this study is to guide UAV users in set up commercial onboard autopilots available on the market. On the contrary, fitness of the autopilot to a given type of the air robot is not guaranteed, and, an extra load on users can appear in controller settings. The proposed pole placement technique is one of the proper methods eliminating difficulties, and, computer aided gain selection using MATLAB will be presented.

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MODELLING OF THE UNMANNED AERIAL VEHICLES FLIGHT CONTROL SYSTEM

Aviation ◽

10.3846/aviation.2021.13391 ◽

2021 ◽

Vol 25 (2) ◽

pp. 79-85

Author(s):

Mirosław Adamski

Keyword(s):

Control System ◽

Unmanned Aerial Vehicles ◽

Unmanned Aerial Vehicle ◽

Flight Control ◽

Aerodynamic Drag ◽

Unmanned Aircraft ◽

Simulation Program ◽

Flight Control System ◽

Aerial Vehicles ◽

Aerial Vehicle

The article is an independent work containing the author’s ingenious research methodology and the model of the control system of Unmanned Aerial Vehicles. Furthermore a unique and world first mathematical model of an Unmanned Aerial Vehicle was developed, as well as a simulation program which enabled to investigate the control system of any Unmanned Aerial Vehicles in the tilt duct pitch (altitude), bank (direction), deviation and velocity, depending upon the variable values of the steering coefficient, reinforcement coefficient and the derivative constant. The research program was written in the language of the C++ as the MFC class, on the MS Visual Studio 2010 platform. The main issue resolved in the article is the pioneering research of the process of control during manual and semi-automatic guidance of the Unmanned Aerial Vehicle, with a jet propulsion system to the coordinates of preset points of the flight route. Modelling of the flight control system takes into account: the logical network of operations of the simulation program, the pilot-operator model, the set motion and control deviations as well as the flight control laws. In addition, modeling of the control system takes into account the drive model, engine dynamics, engine thrust, the model of steering actuators and the model of external loads. In contrast, the external load model takes into account the external forces acting on the unmanned aircraft, including gravitational forces and moments, aerodynamic forces and moments, aerodynamic drag, aerodynamic lateral forces, aerodynamic lift forces, aerodynamic heeling moment, mechanism of local angle of attack from damping torque and forces and moments from the engine.

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