Title :
Failure Detection and Adaptive Compensation for Fault Tolerable Flight Control Systems
Author :
Lin, Chun-Liang ; Liu, Chun-Te
Author_Institution :
Nat. Chung Hsing Univ., Taichung
Abstract :
This paper presents an advanced aircraft flight control system which is capable of providing failure detection, identification, and adaptive compensation in the event of the damage of control surfaces. The new approach is based on the detection of immediate changes of correlation between pitching, yawing, and rolling rates. The failure compensation mechanism is realized by an adaptive wavelet neural net-based proportional-integral-derivative (PID) controller. The fault-tolerant mechanism is activated to regain effective control of the damaged aircraft whenever a control surface failure is detected. Design of a real-time executive kernel based on the RT-Linux operating system is experimentally conducted to realize and verify functions of our proposed design.
Keywords :
Linux; adaptive control; aerospace computing; aircraft control; compensation; neurocontrollers; operating system kernels; real-time systems; three-term control; wavelet transforms; RT-Linux operating system; adaptive compensation; adaptive wavelet neural net; aircraft flight control system; failure compensation mechanism; failure detection; failure identification; fault tolerable flight control systems; proportional-integral-derivative controller; real-time executive kernel design; Adaptive control; Aerospace control; Aircraft; Control systems; Event detection; Fault detection; Neural networks; Pi control; Programmable control; Three-term control; Adaptive control; aircraft control; fault tolerance; neural network applications; real-time systems;
Journal_Title :
Industrial Informatics, IEEE Transactions on
DOI :
10.1109/TII.2007.913064
