Advanced detection, isolation, and accommodation of sensor failures - Real-time evaluation

The objective of the Advance Detection, Isolation, and Accommodation program is to improve the overall demonstrated reliability of digital electronic control systems for turbine engines by detecting sensor failures using analytical redundancy. A computer algorithm has been developed to accomplish this task. In this paper, results of a real-time hybrid computer evaluation of the algorithm are presented. Minimum detectable levels of sensor failures for an F100 engine control system are determined. Also included are details about the microprocessor implementation of the algorithm, as well as a description of the algorithm itself.