A Preliminary Evaluation of an F100 Engine Parameter Estimation Process Using Flight Data
Maine, Trindel A. and Gilyard, Glenn B. and Lambert, Heather H. (1990) A Preliminary Evaluation of an F100 Engine Parameter Estimation Process Using Flight Data. Technical Report NASA TM-4216, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
The increasing use of digital engine control allows significant improvement in the performance of aircraft engines. This improvement can be achieved by the use of sophisticated control algorithms designed to recover the full performance potential of the propulsion system. The NASA Ames Research Center, Dryden Flight Research Facility; McDonnell Aircraft Company; and Pratt & Whitney are in the process of developing and flight testing a performance seeking control (PSC) system on the NASA F-15 research aircraft to optimize the near-steady-state performance of the F100 turbofan based propulsion system. The paper is a preliminary evaluation of the engine parameter estimation algorithm which is the primary adaptive element of the PSC algorithm. An evaluation has been made using flight data from the F-15 airplane. The flight data presented were obtained at Mach 0.90 and 30,000 ft and at three throttle positions, one of which was at intermediate power. Based on the theoretical formulation and the limited evaluation using flight data, it appears that this estimation algorithm can provide reasonable estimates of an extended set of engine variables needed for advanced propulsion control law development. However, it must be noted that conclusions drawn from this investigation are not strong because of a lack of independent flight measurements of many of the variables beings estimated. Additional sensors or independently derived estimates of many of the extended variables are needed to firmly establish the validity of the estimation algorithm.
| EPrint Type: | NASA Technical Memorandum |
|---|---|
| Keywords: | Engine parameter estimation, F-15, Kalman filter, Performance seeking control, Propulsion system |
| Subjects: | (31 - 39) Engineering: (34) Fluid Mechanics and Thermodynamics Aircraft/Project: F-15 |
| ID Code: | 360 |
| Deposited On: | 31 August 2004 |
| Additional Information: | 32 pages. Prepared as a paper presented at the AIAA 26th Joint Propulsion Conference, July 16–18, 1990, Orlando, Florida. |
