Patent ID: 9365287
Filing Date: 2016-06-14
CPC Classification: B64C,G05D,G08G

Claim Text:
1. A method of guiding an aircraft, comprising: measuring, via a processor, a current speed of the aircraft; selecting, via the processor, an initial predicted flight trajectory of an aircraft as a function of time, the initial predicted flight trajectory based on one or more of an altitude constraint, a speed constraint, or a Required Time of Arrival (RTA) constraint; determining, during flight, via the processor, a deviation between the initial predicted flight trajectory and a measured current flight trajectory of the aircraft, the determining to be performed a predetermined amount of time after execution of a speed adjustment to the aircraft to reach the measured current speed; generating, via the processor, a revised speed command to reduce the deviation; modifying, via the processor, a planned flight speed based upon the revised speed command; and executing, via the processor, the revised speed command to reduce time deviations and ground speed deviations with respect to the time and a ground speed, respectively, of the initial predicted flight trajectory.