Predictable and required time of arrival compliant optimized profile descents with four dimensional flight management system and related method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-007/00
B64C-019/00
G08G-005/00
출원번호
US-0283683
(2014-05-21)
등록번호
US-9193442
(2015-11-24)
발명자
/ 주소
Young, Shih-Yih
Jerome, Kristen M.
출원인 / 주소
Rockwell Collins, Inc.
대리인 / 주소
Gerdzhikov, Angel N.
인용정보
피인용 횟수 :
6인용 특허 :
4
초록▼
A method and related system may construct predictable 4-D flight profiles for fuel-efficient Optimized Profile Descents (OPD) in compliance with a Required Time of Arrival (RTA) constraint at a metering waypoint. The method may determine a feasible RTA window at the 95% confidence level enabling pil
A method and related system may construct predictable 4-D flight profiles for fuel-efficient Optimized Profile Descents (OPD) in compliance with a Required Time of Arrival (RTA) constraint at a metering waypoint. The method may determine a feasible RTA window at the 95% confidence level enabling pilot awareness to accept or reject the RTA clearance. These methods may eliminate path unpredictability while retaining OPD benefits using constant flight path angle segments during descent. Thus, the vertical descent profile is clearly defined and, therefore, predictable to both pilots and air traffic control.
대표청구항▼
1. A method for generating a predictable descent path for a vehicle, comprising: receiving a preplanned lateral route including at least one metering waypoint;receiving weather information including a wind vector for at least one altitude, the at least one altitude corresponding to the preplanned la
1. A method for generating a predictable descent path for a vehicle, comprising: receiving a preplanned lateral route including at least one metering waypoint;receiving weather information including a wind vector for at least one altitude, the at least one altitude corresponding to the preplanned lateral route;receiving a required time of arrival for the at least one metering waypoint;receiving vehicle information indicative of at least one performance parameter of the vehicle;generating an idle descent path, the idle descent path being a first vertical path corresponding with the lateral path, the idle descent path based on the vehicle information and the weather information;generating a geo path, the geo path being a second vertical path corresponding with the preplanned lateral route, the geo path based on a vertical geometry from a top of descent point to at least one arrival point, the top of descent point and the arrival point corresponding with the preplanned lateral route;generating a descent speed based on a desired vehicle performance;generating a reference path based on a combination of the idle descent path and the geo path;refining the descent speed via at least one speed adjustment, the at least one speed adjustment based at least on: the required time of arrival, the desired vehicle performance, and an external disturbance;generating a predictable descent path based on the reference path, the predictable descent path corresponding with the preplanned lateral route, the predictable descent path at the refined descent speed, the predictable descent path in compliance with at least one of: the required time of arrival, the vehicle information, and a published descent profile; anddisplaying the predictable descent path to a vehicle crewmember on a display. 2. The method for generating a predictable descent path for a vehicle of claim 1, wherein the predictable descent path at the refined descent speed is accurate at the metering waypoint to within one of: 95% of the required time of arrival, and six seconds of the required time of arrival. 3. The method for generating a predictable descent path for a vehicle of claim 1, wherein the vehicle is one of: an aircraft, helicopter, a manned aerial vehicle, and an unmanned aerial vehicle. 4. The method for generating a predictable descent path for a vehicle of claim 1, wherein the preplanned lateral route includes at least one of a flight plan, a published procedure, a noise sensitive procedure, and a standard instrument procedure. 5. The method for generating a predictable descent path for a vehicle of claim 1, wherein the predictable descent path at the refined descent speed further comprises a predictable climb path at a refined climb speed. 6. The method for generating a predictable descent path for a vehicle of claim 1, wherein the weather information further comprises a plurality of wind vectors at a corresponding plurality of altitudes, the plurality of wind vectors updatable via a wireless signal. 7. The method for generating a predictable descent path for a vehicle of claim 1, wherein generating a reference path further comprises generating a second idle descent path and a second reference path after at least one of a disturbance and an update to the weather information. 8. The method for generating a predictable descent path for a vehicle of claim 1, wherein the vertical geometry from a top of descent point to at least one arrival point further comprises a vertical altitude and a lateral range. 9. The method for generating a predictable descent path for a vehicle of claim 1, wherein generating a descent speed further comprises at least one continuous speed descent and at least one continuous deceleration descent. 10. A system for generating a predictable descent path for a vehicle, comprising: a flight management system, the flight management system including a flight management computer operably coupled with at least a non-transitory memory, an input output, a display, a route information module, an aircraft information module, and an updatable weather information module;wherein the flight management computer is configured for: receiving a preplanned lateral route from the route information module, the preplanned lateral route including at least one metering waypoint;receiving weather information via the updatable weather information module, the weather information including a wind vector for at least one altitude, the at least one altitude corresponding to the preplanned lateral route;receiving a required time of arrival for the at least one metering waypoint;receiving aircraft information via the aircraft information module, the aircraft information indicative of at least one performance parameter of the aircraft;generating an idle descent path, the idle descent path a first vertical path corresponding with the lateral path, the idle descent path based on the aircraft information and the weather information;generating a geo path, the geo path being a second vertical path corresponding with the preplanned lateral route, the geo path based on a vertical geometry from a top of descent point to at least one arrival point, the top of descent point and the arrival point corresponding with the preplanned lateral route;generating a descent speed based on a desired aircraft performance;generating a reference path based on a combination of the idle descent path and the geo path;refining the descent speed via at least one speed adjustment, the at least one speed adjustment based at least on: the required time of arrival, the desired aircraft performance, and an external disturbance;generating a predictable descent path based on the reference path, the predictable descent path corresponding with the preplanned lateral route, the predictable descent path at the refined descent speed, the predictable descent path in compliance with at least one of: the required time of arrival, the aircraft information, and a published descent profile;displaying the predictable descent path to a pilot on the display. 11. The system for generating a predictable descent path for a vehicle of claim 10, wherein the predictable descent path at the refined descent speed is accurate at the metering waypoint to within one of: 95% of the required time of arrival, and six seconds of the required time of arrival. 12. The system for generating a predictable descent path for a vehicle of claim 10, wherein the vehicle is one of: an aircraft, helicopter, a manned aerial vehicle, and an unmanned aerial vehicle. 13. The system for generating a predictable descent path for a vehicle of claim 10, wherein the preplanned lateral route includes at least one of a flight plan, a published procedure, a noise sensitive procedure, and a standard instrument procedure. 14. The system for generating a predictable descent path for a vehicle of claim 10, wherein the predictable descent path at the refined descent speed further comprises a predictable climb path at a refined climb speed. 15. The system for generating a predictable descent path for a vehicle of claim 10, wherein the weather information further comprises a plurality of wind vectors at a corresponding plurality of altitudes, the plurality of wind vectors updatable via a wireless signal. 16. The system for generating a predictable descent path for a vehicle of claim 10, wherein generating a reference path further comprises generating a second idle descent path and a second reference path after at least one of a disturbance and an update to the weather information. 17. The system for generating a predictable descent path for a vehicle of claim 10, wherein the vertical geometry from a top of descent point to at least one arrival point further comprises a vertical altitude and a lateral range. 18. The system for generating a predictable descent path for a vehicle of claim 10, wherein generating a descent speed further comprises at least one continuous speed descent and at least one continuous deceleration descent. 19. A system for generating a predictable descent path for an aircraft, comprising: at least one computer device or processor onboard the aircraft;a computer readable medium having non-transitory computer readable program code embodied therein for generating a predictable descent path for an aircraft, the computer readable program code comprising instructions which, when executed by the at least one computer device or processor, cause the at least one computer device or processor to perform and direct the steps of:receiving a preplanned lateral route including at least one metering waypoint;receiving weather information including a wind vector for at least one altitude, the at least one altitude corresponding to the preplanned lateral route;receiving a required time of arrival for the at least one metering waypoint;receiving vehicle information indicative of at least one performance parameter of the vehicle;generating an idle descent path, the idle descent path a first vertical path corresponding with the lateral path, the idle descent path based on the vehicle information and the weather information;generating a geo path, the geo path being a second vertical path corresponding with the preplanned lateral route, the geo path based on a vertical geometry from a top of descent point to at least one arrival point, the top of descent point and the arrival point corresponding with the preplanned lateral route;generating a descent speed based on a desired vehicle performance;generating a reference path based on a combination of the idle descent path and the geo path;refining the descent speed via at least one speed adjustment, the at least one speed adjustment based at least on: the required time of arrival, the desired vehicle performance, and an external disturbance;generating a predictable descent path based on the reference path, the predictable descent path corresponding with the preplanned lateral route, the predictable descent path at the refined descent speed, the predictable descent path in compliance with at least one of: the required time of arrival, the vehicle information, and a published descent profile. 20. A method for generating a predictable descent path for a vehicle, comprising: means for receiving a preplanned lateral route including at least one metering waypoint;means for receiving weather information including a wind vector for at least one altitude, the at least one altitude corresponding to the preplanned lateral route;means for receiving a required time of arrival for the at least one metering waypoint;means for receiving vehicle information indicative of at least one performance parameter of the vehicle;means for generating an idle descent path, the idle descent path a first vertical path corresponding with the lateral path;means for generating a geo path, the geo path being a second vertical path corresponding with the preplanned lateral route;means for generating a descent speed, the descent speed based on a desired vehicle performance;means for generating a reference path based on a combination of the idle descent path and the geo path;means for refining the descent speed via at least one speed adjustment;means for generating a predictable descent path based on the reference path, the predictable descent path corresponding with the preplanned lateral route, the predictable descent path at the refined descent speed, the predictable descent path in compliance with at least one of: the required time of arrival, the vehicle information, and a published descent profile. 21. A method for generating descent path for a vehicle predictable within 95% of a confidence level, comprising: receiving a preplanned lateral route including at least one metering waypoint;receiving weather information including a wind vector for at least one altitude, the at least one altitude corresponding to the preplanned lateral route;receiving a required time of arrival for the at least one metering waypoint, the required time of arrival including a window of compliance;receiving vehicle information indicative of at least one performance parameter of the vehicle;generating an idle descent path, the idle descent path a first vertical path corresponding with the lateral path, the idle descent path based on the vehicle information and the weather information;generating a geo path, the geo path being a second vertical path corresponding with the preplanned lateral route, the geo path based on a vertical geometry from a top of descent point to at least one arrival point, the top of descent point and the arrival point corresponding with the preplanned lateral route;generating a feasible descent speed based on: a desired vehicle performance and the window of compliance;generating a reference path based on a combination of the idle descent path and the geo path;refining the feasible descent speed via at least one speed adjustment, the at least one speed adjustment based at least on: the required time of arrival, the desired vehicle performance, the window of compliance, and an external disturbance, the refined feasible speed accurate to within a 95% confidence level to meet the window of compliance;generating a predictable descent path based on the reference path, the predictable descent path corresponding with the preplanned lateral route, the predictable descent path at the refined descent speed, the predictable descent path in compliance with at least one of: the required time of arrival, the vehicle information, and a published descent profile; anddisplaying the predictable descent path and the refined feasible speed to a vehicle crewmember on a display. 22. The method for generating descent path for a vehicle predictable within 95% of a confidence level of claim 21, wherein the window of compliance is plus and minus six seconds from the received required time of arrival. 23. The method for generating descent path for a vehicle predictable within 95% of a confidence level of claim 21, wherein the refined feasible speed is based at least on one of: a maximum feasible speed and a minimum feasible speed, the maximum feasible speed less than a maximum vehicle speed, the minimum feasible speed greater than a minimum vehicle speed.
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