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Enhanced Engine Performance During Emergency Operation Using a Model-Based Engine Control ArchitectureThis paper discusses the design and application of model-based engine control (MBEC) for use during emergency operation of the aircraft. The MBEC methodology is applied to the Commercial Modular Aero-Propulsion System Simulation 40k (CMAPSS40k) and features an optimal tuner Kalman Filter (OTKF) to estimate unmeasured engine parameters, which can then be used for control. During an emergency scenario, normally-conservative engine operating limits may be relaxed to increase the performance of the engine and overall survivability of the aircraft; this comes at the cost of additional risk of an engine failure. The MBEC architecture offers the advantage of estimating key engine parameters that are not directly measureable. Estimating the unknown parameters allows for tighter control over these parameters, and on the level of risk the engine will operate at. This will allow the engine to achieve better performance than possible when operating to more conservative limits on a related, measurable parameter.
Document ID
20160003118
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Csank, Jeffrey T. (NASA Glenn Research Center Cleveland, OH United States)
Connolly, Joseph W. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
March 8, 2016
Publication Date
March 1, 2016
Subject Category
Air Transportation And Safety
Aircraft Propulsion And Power
Report/Patent Number
E-19200
NASA-TM-2016-219073
GRC-E-DAA-TN29891
Report Number: E-19200
Report Number: NASA-TM-2016-219073
Report Number: GRC-E-DAA-TN29891
Funding Number(s)
WBS: WBS 109492.02.03.02.11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
engine control
control systems design
control theory

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