System and method for optimizing an aircraft trajectory
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08G-005/00
G08G-005/04
G01C-021/20
G01W-001/00
G05D-001/00
G05D-001/02
G08G-005/02
출원번호
US-0363843
(2016-11-29)
등록번호
US-9728091
(2017-08-08)
발명자
/ 주소
Shay, Richard
출원인 / 주소
Double Black Aviation Technology L.L.C.
대리인 / 주소
Sheridan Ross, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
59
초록▼
Systems and methods of the present invention are provided to generate a plurality of flight trajectories that do not conflict with other aircraft in a local area. Interventions by an air traffic control system help prevent collisions between aircraft, but these interventions can also cause an aircra
Systems and methods of the present invention are provided to generate a plurality of flight trajectories that do not conflict with other aircraft in a local area. Interventions by an air traffic control system help prevent collisions between aircraft, but these interventions can also cause an aircraft to substantially deviate from the pilot's intended flight trajectory, which burns fuels, wastes time, etc. Systems and methods of the present invention can assign a standard avoidance interval to other aircraft in the area such that a pilot's aircraft does not receive an intervention by an air traffic control system. Systems and methods of the present invention also generate a plurality of conflict-free flight trajectories such that a pilot or an automated system may select the most desirable flight trajectory for fuel efficiency, speed, and other operational considerations, etc.
대표청구항▼
1. A method for automatically determining a plurality of conflict-free flight trajectories for a first aircraft, comprising: providing a traffic avoidance spacing system having at least one electronic device to process instructions for determining a plurality of flight trajectories and providing a f
1. A method for automatically determining a plurality of conflict-free flight trajectories for a first aircraft, comprising: providing a traffic avoidance spacing system having at least one electronic device to process instructions for determining a plurality of flight trajectories and providing a flight management system;providing information regarding a first aircraft moving in space according to a first state vector;providing information regarding a second aircraft moving in space according to a second state vector, said second aircraft having a standard avoidance interval extending in at least one direction from said second aircraft;providing sector loading information regarding a number of aircraft in an air traffic control sector;determining, by said at least one electronic device, a first flight trajectory for said first aircraft based on said first state vector of said first aircraft and based on said sector loading information;comparing, by said at least one electronic device, said first flight trajectory to said second state vector of said second aircraft to determine a miss distance between said first aircraft and said second aircraft;comparing, by said at least one electronic device, said miss distance to said standard avoidance interval of said second aircraft to confirm that said miss distance is greater than said standard avoidance interval;determining, by said at least one electronic device, a second flight trajectory for said first aircraft based on said first state vector of said first aircraft and based on said sector loading information, said second flight trajectory being distinct from said first flight trajectory; andreceiving and executing, by said flight management system, one of said first and second flight trajectories so that said first aircraft travels on a conflict-free flight trajectory. 2. The method of claim 1, further comprising: comparing, by said at least one electronic device, said second flight trajectory to said second state vector of said second aircraft to determine a second miss distance between said first aircraft and said second aircraft; andcomparing, by said at least one electronic device, said second miss distance to said standard avoidance interval of said second aircraft to confirm that said second miss distance is greater than said standard avoidance interval. 3. The method of claim 1, wherein: said first flight trajectory is optimized for a parameter. 4. The method of claim 3, wherein: said parameter is fuel efficiency, wherein a plurality of first flight trajectories range between said first flight trajectory and a first flight trajectory that uses a maximum fuel allowance, and wherein said flight management system receives and executes a flight trajectory from one of said plurality of first flight trajectories and said second flight trajectory so that said first aircraft travels on a conflict-free flight trajectory. 5. The method of claim 3, wherein: said parameter is time efficiency, wherein a plurality of first flight trajectories range between said first flight trajectory and a first flight trajectory that uses a maximum time allowance, and wherein said flight management system receives and executes a flight trajectory from one of said plurality of first flight trajectories and said second flight trajectory so that said first aircraft travels on a conflict-free flight trajectory. 6. The method of claim 1, wherein: said standard avoidance interval defines an enclosed volume surrounding said second aircraft, and said enclosed volume has a cylindrical shape, said top and bottom surfaces of said enclosed volume defined by a vertical separation distance, and said circumferential surface of said enclosed volume defined by a radial distance. 7. The method of claim 1, further comprising: providing information regarding an upper air speed and a lower air speed below a Mach-CAS transition altitude; andcomparing, by said at least one electronic device, a speed profile of said first flight trajectory to said upper air speed and said lower air speed to confirm that said speed profile of said first flight trajectory is less than said upper air speed and greater than said lower air speed when said first aircraft is below said Mach-CAS transition altitude. 8. A method for minimizing an off-path vector for a first aircraft, comprising: providing a traffic avoidance spacing system having at least one electronic device to process instructions for determining a plurality of flight trajectories and providing a flight management system;providing information regarding a first aircraft moving in space according to a first state vector;providing information regarding a second aircraft moving in space according to a second state vector, said second aircraft having a standard avoidance interval extending in at least one direction from said second aircraft;determining, by said at least one electronic device, a plurality of flight trajectories for said first aircraft based on said first state vector of said first aircraft;comparing, by said at least one electronic device, said flight trajectories to said second state vector of said second aircraft to determine a plurality of miss distances between said first aircraft and said second aircraft;selecting, by a pilot of said first aircraft, a flight trajectory from said plurality of flight trajectories based on said miss distance for said selected flight trajectory to minimize an off-path vector for said first aircraft and based on a parameter;receiving and executing, by said flight management system, said selected flight trajectory; andreceiving and executing, by said flight management system, an off-path vector from an air traffic control. 9. The method of claim 8, wherein: said parameter is fuel efficiency, wherein said plurality of flight trajectories range between a flight trajectory that uses a minimum fuel allowance and a flight trajectory that uses a maximum fuel allowance. 10. The method of claim 8, wherein: said parameter is time efficiency, wherein said plurality of flight trajectories range between a flight trajectory that uses a minimum time allowance and a flight trajectory that uses a maximum time allowance. 11. The method of claim 8, further comprising: determining, by said at least one electronic device, a plurality of second flight trajectories for said first aircraft based on said first state vector of said first aircraft, said second flight trajectories being distinct from said flight trajectories; andcomparing, by said at least one electronic device, said second flight trajectories to said second state vector of said second aircraft to determine a plurality of second miss distances between said first aircraft and said second aircraft; andselecting, by said pilot of said first aircraft, a flight trajectory from said plurality of flight trajectories and said plurality of said second flight trajectories based on said miss distance for said selected flight trajectory to minimize said off-path vector for said first aircraft and based on said parameter. 12. The method of claim 8, wherein: said standard avoidance interval defines an enclosed volume surrounding said second aircraft, and said enclosed volume has a cylindrical shape, said top and bottom surfaces of said enclosed volume defined by a vertical separation distance, and said circumferential surface of said enclosed volume defined by a radial distance. 13. The method of claim 8, further comprising: providing information regarding an upper air speed and a lower air speed below a Mach-CAS transition altitude; andcomparing, by said at least one electronic device, speed profiles of said plurality of flight trajectories to said upper air speed and said lower air speed to confirm that speed profiles of said flight trajectories are less than said upper air speed and greater than said lower air speed when said first aircraft is below said Mach-CAS transition altitude. 14. The method of claim 8, wherein: said flight trajectories of said plurality of flight trajectories each include a first segment wherein said first aircraft has a first speed profile and a second segment wherein said first aircraft has a second speed profile, wherein said first speed profile and said second speed profile are distinct. 15. The method of claim 1, further comprising: comparing, by said at least one electronic device, said plurality of flight trajectories to a weather event to confirm said plurality of flight trajectories does not conflict with said weather event. 16. A system for automatically determining a plurality of conflict-free trajectories for a first aircraft, comprising: a local data device that determines a first state vector for a first aircraft, said local data device sends said first state vector for said first aircraft to a trajectory generation device;a transmitted data device that determines a second state vector for a second aircraft, said transmitted data device sends said second state vector for said second aircraft to said trajectory generation device;said trajectory generation device assigns a standard avoidance interval to said second aircraft, said standard avoidance interval extends in at least one direction from said second aircraft, said trajectory generation device determines a plurality of flight trajectories based on said first state vector of said first aircraft and based on sector loading information regarding a number of aircraft in an air traffic control sector, said trajectory generation device compares each flight trajectory to said second state vector of said second aircraft to determine a plurality of miss distances, said trajectory generation device confirms that each miss distance is greater than said standard avoidance interval for said second aircraft;an input user interface operably interconnected to said trajectory generation device and a flight management system, said input user interface configured to receive an input from a pilot of said first aircraft to select a conflict-free fight trajectory from said plurality of conflict-free flight trajectories, said input user interface sends said selected conflict-free flight trajectory to said flight management system; andsaid flight management system receives and executes said selected conflict-free flight trajectory from said plurality of conflict-free flight trajectories so that said first aircraft travels on said received conflict-free flight trajectory. 17. The system of claim 16, further comprising: a display unit operably interconnected to said trajectory generation device, said display unit displays said plurality of conflict-free flight trajectories. 18. The system of claim 16, further comprising: an onboard traffic device that is operably interconnected to said transmitted data device and said trajectory generation device;an internet-based data device that determines another state vector for said second aircraft, wherein said onboard traffic device synthesizes said state vector for said second aircraft from both said transmitted data device and said internet-based data device, and sends said synthesized state vector for said second aircraft to said trajectory generation device. 19. The system of claim 16, further comprising: an air data device that determines at least one of airspeed data and atmospheric data surrounding said first aircraft, and said air data device sends said data to said trajectory generation device. 20. The system of claim 19, wherein: said air data device sends data regarding a weather event having a volume to said trajectory generation device, wherein said trajectory device confirms that each flight trajectory avoids said volume of said weather event. 21. The system of claim 16, wherein said trajectory generation device is located onboard said first aircraft.
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