Power lever tactile cueing system
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United States of America Patent
Stats
-
Feb 24, 2004
Grant Date -
May 22, 2003
app pub date -
Nov 12, 2002
filing date -
May 16, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention is a power lever tactile cueing system for providing tactile alerts to pilots as operational limits of an aircraft are approached. The cueing system generates a tactile cue comprising a variable dive rate and a variable friction force on a power lever of an aircraft. The cueing system provides spring-like tactile cues when power commands reach a predetermined operating limit, without the use of mechanical springs. The cueing system trims down the power lever position and provides the additional friction force based upon aircraft and engine state. The cueing system remains activated until the aircraft is again operated within its operational limits. The pilot may override the cueing system in certain situations.
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