A real-time engineering software system for failure detection and isolation of self-repairing flight control system

Juan Deng; Jianliang Ai; Min Gao; Changhang Luo

doi:10.1117/12.718209

30 October 2006 A real-time engineering software system for failure detection and isolation of self-repairing flight control system

Juan Deng, Jianliang Ai, Min Gao, Changhang Luo

Author Affiliations +

Proceedings Volume 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation; 63584L (2006) https://doi.org/10.1117/12.718209
Event: Sixth International Symposium on Instrumentation and Control Technology, 2006, Beijing, China

Abstract

This paper introduces a real-time Failure Detection and Isolation (FDI) software system of Self-Repairing Flight Control System (SRFCS) that is developed by Institute of Vehicle Design of Fudan University. An algorithm of adopting the method of parity space to get residual sequences and the theory of residual vector data fusion is applied to detecting and isolating the abrupt change failures of SRFCS, especially the actuators' failures, single control surface's failures and multiple failures. The system follows the theory of object-oriented software design by adopting the design idea of modularization and uses Dynamic Link Library (DLL) widely so that it is easy to replant new modules and extend its ability freely. The interface of this system is friendly and the operation on it is convenient. In this paper, the system is applied to the flight control system of some type of fighter of Chinese Air Force and the results show that this software system can detect single control surface's failures within 0.125 seconds (10 sampling periods) and actuators' failures within 0.0625 seconds (5 sampling periods) under strong noise circumstances. The test results based on the simulated data prove the validity of the theory, the robust and real time property of the developed software.

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Juan Deng, Jianliang Ai, Min Gao, and Changhang Luo "A real-time engineering software system for failure detection and isolation of self-repairing flight control system", Proc. SPIE 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation, 63584L (30 October 2006); https://doi.org/10.1117/12.718209

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KEYWORDS

Actuators

Control systems

Failure analysis

Control systems design

Human-machine interfaces

Interfaces

Software development

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