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Fault diagnosis is of significant importance to the robustness of aeroengine control systems. This paper makes use of full-order unknown input observers (UIOs) to facilitate the diagnosis of sensor/actuator faults in engine control systems. The built-in “ui-observer” function in Scilab, however, can not give satisfying performance, in terms of observer realization. Hence we rewrite this UIO program...
Considering the on-board real-time performance and communication stability requirements for jet engine distritbuted control system, a novel communication protocol based on the serial port has been proposed in this paper. In our study, the communication data and check information has been designed in a specified packet framework in terms of minimizing communication packet length and maximizing communication...
In this paper, we focus on the problem of the fault-tolerant control (FTC) of aircraft in the presence of both unknown input disturbance and sensor failure. In the proposed method, the sensor faults will be detected by a full-order unknown input observer (UIO), and then the faults will be isolated by a bank of UIOs in the framework of the generalized observer scheme. Finally, the faulty sensor measurement...
This paper aims at understanding and analyzing the effects of system-on chip technology on FADEC (Full Authority Digital Engine Control) system. Now FADEC system involves three problems besides basic performances: life-cycle cost reduction, weight reduction and flexibility of system realization. The life-cycle cost is stemmed mainly from avionics obsolescence, system maintenance, advancing performances...
The fault diagnosis, isolation and accommodation techniques (FDIA) play an important role in the advance engine control system, and also can highly improve the reliability of the whole control system. In this paper, we build the engine realtime dynamic linear model in the framework of gain scheduling. Meanwhile, a fast recursive Kalman algorithm has been proposed to build the Kalman filter in order...
Fuzzy-PID control is used in the Variable rate fertilization controlling system and the rule of the fuzzy control is determined. Based on the dynamic model of the Variable rate fertilization controlling system, MATLAB/Simulink is applied to simulate the torque and the rotation speed of the engine. The experimental results indicate that the proposed method is of simple arithmetic and real-time characteristics...
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