Sum integration estimating of the vertical speed for a rotary wing aircraft
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United States of America Patent
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-
Jul 14, 2009
Grant Date -
Jan 25, 2007
app pub date -
Jun 29, 2005
filing date -
May 23, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process and device for estimating the vertical speed of a rotary wing aircraft may include integrating the sum of: (1) a first component corresponding to a vertical acceleration measurement and (2) a second component obtained from the difference between: (a) a first value incorporating a barometric measurement and (b) a second value incorporating a previous estimation of the vertical speed. The second component is derived from the difference between the first and second values by clipping this difference to eliminate, as appropriate, the part of the difference which is greater, in absolute value, than a predetermined value.
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