SENSOR FAULTS DIAGNOSIS IN AIRCRAFT LATERAL FLIGHT CONTROL USING MODEL BASED APPROACHES

Abstract

In this paper, sensor fault detection and isolation schemes are proposed. Fault detection and isolation techniques are used in fail safe control systems such as aerospace. In these systems, failures can cause to arise undesirable results. Using model based approaches, sensor faults can be detected and isolated. To detect sensor faults, some kind of observers can be used while isolating the faulty sensors, some kind of schemes can be used. In this study, sensor fault detection and isolation are obtained on an aircraft lateral flight control system using model based approaches. Full Order Observer and Reduced Order Observer are used for sensor fault detection while Dedicated Observer Scheme (DOS) and Generalized Observer Scheme (GOS) are used for sensor isolation. Fault detection and fault isolation methods are analyzed and compared with each other.

Keywords

• Flight Control
• Fault Detection
• Fault Isolation
• Model Based Approaches