Adapting selective terrain warnings as a function of the instantaneous maneuverability of a rotorcraft
AssigneeEurocopter
InventorsSerge Germanetti, Alain Ducollet
Life of this patent
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Abstract
A method of generating a terrain avoidance warning for a rotary wing aircraft including generating an avoidance trajectory including a proximal segment representative of a transfer time and an avoidance curve including at least one distal segment of a conic section curve following on from the proximal segment, wherein the proximal segment extends in continuation from a predicted trajectory over a distance representing an applicable reaction time, the applicable reaction time being minimized as a function of a route sheet for the aircraft, and wherein the generating includes calculating the at least one distal segment as a function of an instantaneous maneuverability of the aircraft.
Claims12
1-10. (canceled)
A method of generating a terrain avoidance warning for a rotary wing aircraft comprising:
- generating an avoidance trajectory including a proximal segment representative of a transfer time and an avoidance curve including at least one distal segment of a conic section curve following on from the proximal segment, wherein the proximal segment extends in continuation from a predicted trajectory over a distance representing an applicable reaction time, the applicable reaction time being minimized as a function of a route sheet for the aircraft;
- and wherein the generating includes calculating the at least one distal segment as a function of an instantaneous maneuverability of the aircraft.
A terrain warning device disposed at least in part on board an aircraft comprising:
- an avionics unit having a flight computer configured to execute a code, wherein the code is configured to generate an avoidance trajectory including a proximal segment representative of a transfer time and an avoidance curve including at least one distal segment of a conic section curve following on from the proximal segment, the proximal segment extending in continuation from a predicted trajectory over a distance representing an applicable reaction time, the applicable reaction time being minimized as a function of a route sheet for the aircraft;
- and wherein the at least one distal segment is calculated as a function of an instantaneous maneuverability of the aircraft.
A rotary wing aircraft comprising:
- a terrain warning device disposed at least in part on board the aircraft including an avionics unit having a flight computer configured to execute a code, wherein the code is configured to generate an avoidance trajectory including a proximal segment representative of a transfer time and an avoidance curve including at least one distal segment of a conic section curve following on from the proximal segment, the proximal segment extending in continuation from a predicted trajectory over a distance representing an applicable reaction time, the applicable reaction time being minimized as a function of a route sheet for the aircraft;
- and wherein the at least one distal segment is calculated as a function of an instantaneous maneuverability of the aircraft;
- and
- a sound alarm logically coupled to the terrain warning device and configured to be triggered selectively by the terrain warning device.
Dependencies are inferred from the claim text.