A real-time expert system for self-repairing flight controlAn integrated environment for specifying, prototyping, and implementing a self-repairing flight-control (SRFC) strategy is described. At an interactive workstation, the user can select paradigms such as rule-based expert systems, state-transition diagrams, and signal-flow graphs and hierarchically nest them, assign timing and priority attributes, establish blackboard-type communication, and specify concurrent execution on single or multiple processors. High-fidelity nonlinear simulations of aircraft and SRFC systems can be performed off-line, with the possibility of changing SRFC rules, inference strategies, and other heuristics to correct for control deficiencies. Finally, the off-line-generated SRFC can be transformed into highly optimized application-specific real-time C-language code. An application of this environment to the design of aircraft fault detection, isolation, and accommodation algorithms is presented in detail.
Document ID
19890065157
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gaither, S. A. (Integrated Systems, Inc. Santa Clara, CA, United States)
Agarwal, A. K. (Integrated Systems, Inc. Santa Clara, CA, United States)
Shah, S. C. (Integrated Systems, Inc. Santa Clara, CA, United States)
Duke, E. L. (NASA Flight Research Center Edwards, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Aircraft Stability And Control
Report/Patent Number
AIAA PAPER 89-3427
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference