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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
技術領域
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

According to the process 1900, fly-over of the first waypoint (WPT1) results in course capture that is closer to the second waypoint (WPT2) than the beginning of the second turn (ITP2) or that is past the second waypoint (WPT2). If the second waypoint (WPT2) is a fly-by transition, the process 1900 creates a course capture to the second waypoint (WPT2) outbound course using a predetermined intercept angle or angle range.

The bearing from the waypoint (WPT1) to the waypoint (WPT2) may be given from initial construction as is the bearing from the waypoint (WPT1) to the turn center (TC1). The bearing from the turn center (TC1) is BRGTC1-FTPnew=BRGWPT1-WPT2?β+??90°. The distance between (TC1) and the waypoint (WPT2) is a=√{square root over (R2+h2+hR1 sin α)}. The course capture point of the outbound course from the waypoint (WPT2) is given by

x = c ? sin ? ? θ sin ? ? ? .

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