scholarly journals A Study on Aircraft Engine Control Systems for Integrated Flight and Propulsion Control

2008 ◽  
Vol 56 (654) ◽  
pp. 299-307
Author(s):  
Hideaki YAMANE ◽  
Yasushi MATSUNAGA ◽  
Takeshi KUSAKAWA ◽  
Hisako YASUI
Keyword(s):  
Control Systems ◽  
Aircraft Engine ◽  
Engine Control ◽  
Propulsion Control

LQR Control Design of Discrete-Time Networked Cascade Control Systems With Time Delay

2011 ◽  
Author(s):  
Rohit K. Belapurkar ◽  
Rama K. Yedavalli
Keyword(s):  
Control System ◽  
Control Systems ◽  
Discrete Time ◽  
Time Delays ◽  
Control Design ◽  
Aircraft Engine ◽  
Cascade Control ◽  
Engine Control ◽  
Lqr Control ◽  
Turboshaft Engine

Series cascade control systems, in which, the output of one process drives a second process are studied extensively in literature. Traditional control design methods based on transfer function approach are used for design of cascade control systems with disturbances in inner loop and time delays in outer loop process. Design of current turboshaft engine control systems are based on cascade control system framework. Next generation aircraft engine control systems are based on distributed architecture, in which, communication constraints like time delays can degrade control system performance. Stability of networked cascade control systems for turboshaft engines in a state space framework is analyzed in the presence of time delays. Two architectures of networked cascade control systems are presented. Stability conditions for discrete-time cascade control systems are presented for each of the architecture with time delays which are more than the sampling time.

Aspects of aircraft engine control systems R&D

1997 ◽  
Vol 5 (5) ◽  
pp. 595-602 ◽  
Author(s):  
H. Yamane ◽  
Y. Takahara ◽  
T. Oyobe
Keyword(s):  
Control Systems ◽  
Aircraft Engine ◽  
Engine Control

Conceptual Design of an Optic-Based Engine Control System

1988 ◽  
Vol 110 (1) ◽  
pp. 28-32
Author(s):  
W. J. Davies ◽  
R. A. Baumbick ◽  
R. W. Vizzini
Keyword(s):  
Control System ◽  
Control Systems ◽  
Conceptual Design ◽  
Electromagnetic Interference ◽  
System Integration ◽  
Variable Geometry ◽  
Engine Control ◽  
Engine Control System ◽  
Propulsion Control ◽  
Electromagnetic Immunity

Advanced integrated flight and propulsion control systems may require the use of optic technology to provide enhanced electromagnetic immunity and reduced weight. Immunity to electromagnetic interference and pulses is required for integrated systems where flight and propulsion control systems communicate with each other and diverse systems located throughout a composite aircraft. Weight reduction is crucial to the complex engine control systems required for advanced engines incorporating diagnostics, variable geometry and vectoring/reversing exhaust nozzles. A team of Pratt & Whitney, McDonnell Aircraft, Hamilton Standard, and United Technologies Research Center have developed the conceptual design of an optic engine control system, under a contract from NASA Lewis, entitled Fiber Optic Control System Integration (FOCSI). FOCSI is a triservice/NASA joint program designed to provide the optic technology requirements for advanced fighter/attack aircraft.

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