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System and method to modify an aircraft flight trajectory

專利號
US10867520B2
公開日期
2020-12-15
申請人
THE BOEING COMPANY(US IL Chicago)
發(fā)明人
Christopher J. Heiberg; Thomas E. Yochum
IPC分類
G08G5/00; B64C13/18; B64C13/16
技術(shù)領(lǐng)域
flight,waypoint,trajectory,profile,turn,aircraft,wpt2,initial,wpt1,waypoints
地域: IL IL Chicago

摘要

A method includes generating a flight plan of an aircraft. The flight plan is based on at least one waypoint and a set of operational rules associated with the aircraft. The method also includes generating an initial trajectory profile based on the at least one waypoint and the set of operational rules. The method further includes identifying an impermissible flight condition associated with the initial trajectory profile. The impermissible flight condition violates at least one operational rule of the set of operational rules. The method further includes generating a modified trajectory profile by modifying at least one aspect of the initial trajectory profile to remove the impermissible flight condition. The modified trajectory profile can be used by a pilot to fly the aircraft, the modified trajectory profile can be used by an autopilot system, or the modified trajectory profile can be displayed.

說明書

One advantage of the above-described implementation is dynamic modification to an initial trajectory profile in response to impermissible flight conditions. As a non-limiting example, the initial flight plan can indicate that an aircraft is to have a turn radius of 10 kilometers to pass by a waypoint in the initial flight plan. However, due to impermissible flight conditions (e.g., unexpected tail wind), completion of the turn at the turn radius would violate the airplane's operational capability (e.g., the bank angle would be too steep) so the aircraft would be unable to stay on the trajectory profile. Thus, to ensure the airplane has a flyable trajectory profile, a flight management system can modify the initial trajectory profile during the flight to modify a turn transition (e.g., move the turn initiation point upwind on the trajectory profile 0.5 kilometers) so that the airplane can initiate the turn sooner and, therefore, comply with the rules for the given flight plan.

Additionally, one or more of the features, functions, and advantages that have been described can be achieved independently in various implementations or can be combined in yet other implementations, further details of which are disclosed with reference to the following description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram of an aircraft that includes a system operable to dynamically modify an initial trajectory profile during flight in response to identifying an impermissible flight condition;

FIG. 2 is a block diagram of the system of FIG. 1;

權(quán)利要求

1
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