Building Intelligence into an Autopilot Using Qualitative Simulation to Support Global Decision Making

Abstract

This paper represents an addendum to an earlier paper published by the same research group in Simulation [Vesanterä and Cellier, 1989]. In the earlier paper, a crisp inductive reasoner had been employed to qualitatively reason about the behavior of a quantitatively simulated B--747 aircraft, to determine when a structural malfunction occurs, to hypothesize about the nature of this malfunction, and to decide upon a global strategy that allows to operate the quantitative aircraft model under the modified flying conditions.

In the addendum, the formerly crisp inductive reasoner has been replaced by a fuzzy inductive reasoner. The paper demonstrates the enhanced discriminatory power and the improved forecasting capability of the modified reasoning scheme. In addition, the fuzzy inductive reasoner allows to predict a quasi-continuous response spectrum, whereas the crisp inductive reasoner was able to predict discrete (class) values only.


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Last modified: January 12, 2006 -- © François Cellier