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Airborne separation assurance system and required time of arrival function cooperation

  • US 9,761,148 B2
  • Filed: 08/03/2010
  • Issued: 09/12/2017
  • Est. Priority Date: 08/03/2010
  • Status: Active Grant
First Claim
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1. An onboard system for self-controlling an aircraft traversing a flight plan, comprising:

  • a required time of arrival (RTA) system configured to compile an RTA trajectory based at least upon an RTA at a waypoint of a flight plan of the aircraft and to;

    an autopilot in operable communication with the RTA system, the autopilot configured to execute the RTA trajectory that was compiled by the RTA system;

    an airborne separation assurance system (ASAS) in operable communication with the RTA and the autopilot and configured to compile a spacing trajectory based at least in part on a spacing interval requirement and determine if the RTA trajectory actually violated the spacing interval requirement, wherein;

    when the RTA trajectory has not actually violated the spacing interval requirement then the autopilot continues to execute the RTA trajectory,when the RTA trajectory has actually violated the spacing interval requirement, then the autopilot executes the spacing trajectory,the ASAS is further configured to determine if the spacing interval requirement has been re-established by executing the spacing trajectory, andwhen the spacing trajectory has re-established the spacing interval requirement, then RTA system is further configured to determine a new RTA trajectory to the waypoint and supply the new RTA trajectory to the autopilot for execution thereby.

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