Title page for ETD etd-02022010-020046
|Type of Document
||Feltner, D. James
||An investigation into the stability of redundant controller voting schemes
||Master of Science
|Grigsby, L. L.
|Nunnally, Charles E.
|VanLandingham, Hugh F.
|Date of Defense
Redundant controllers are being designed to provide improved
system reliability to meet the needs of various applications. In some
implementations of these systems unacceptable system transients have
occured when a single-controller failure occurs. The problem has
been treated using case-by-case correction which is not sufficiently
general in application to meet the needs of systems which may be
Redundant control systems generalized as ideal and nonideal
using two specific voting schemes are examined to gain insight into
theoretical characterization of their performance under single-point
failure modes and the limitations of applicability for the
characterizations. State-model computer simulation is used to
demonstrate the characterizations. A suggested direction for a
general solution to the problem based on the chatacterizations is
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