Methods and systems facilitating stabilized descent to a diversion airport
First Claim
1. A method of assisting an aircraft for landing at an airport, the method comprising:
- determining a flap extension point for an approach to the airport based at least in part on a decision point proximate the airport and one or more stabilization criteria, the one or more stabilization criteria including at least one of a maximum airspeed limit and a maximum descent rate limit;
determining one or more validation criteria associated with the flap extension point based on the one or more stabilization criteria, wherein the one or more validation criteria include at least one of a minimum airspeed at the flap extension point and a maximum airspeed at the flap extension point;
obtaining, from a system onboard the aircraft, a current position of the aircraft and a current velocity of the aircraft;
determining a descent strategy for the aircraft from the current position to the flap extension point based at least in part on the current position, the current velocity, and the one or more validation criteria associated with the flap extension point, wherein the descent strategy comprises one or more actions to decrease an energy level of the aircraft to satisfy the one or more validation criteria upon reaching the flap extension point; and
providing graphical indication of the one or more actions of the descent strategy on a display device at respective points along a route from the current position to the airport.
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Accused Products
Abstract
Methods and systems are provided for guiding or otherwise assisting operation of a vehicle to intersect a stabilized approach to a destination. One exemplary method of assisting an aircraft for landing at an airport involves obtaining, from a system onboard the aircraft, a current position of the aircraft and a current velocity of the aircraft, determining a descent strategy for the aircraft from the current position to an initialization point for a stable approach to the airport based at least in part on the current position and the current velocity, and providing indication of the descent strategy on a display device. The descent strategy is determined based on one or more validation criteria associated with the initialization point so that one or more predicted values for one or more characteristics of the aircraft satisfy the one or more validation criteria at the initialization point.
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Citations
20 Claims
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1. A method of assisting an aircraft for landing at an airport, the method comprising:
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determining a flap extension point for an approach to the airport based at least in part on a decision point proximate the airport and one or more stabilization criteria, the one or more stabilization criteria including at least one of a maximum airspeed limit and a maximum descent rate limit; determining one or more validation criteria associated with the flap extension point based on the one or more stabilization criteria, wherein the one or more validation criteria include at least one of a minimum airspeed at the flap extension point and a maximum airspeed at the flap extension point; obtaining, from a system onboard the aircraft, a current position of the aircraft and a current velocity of the aircraft; determining a descent strategy for the aircraft from the current position to the flap extension point based at least in part on the current position, the current velocity, and the one or more validation criteria associated with the flap extension point, wherein the descent strategy comprises one or more actions to decrease an energy level of the aircraft to satisfy the one or more validation criteria upon reaching the flap extension point; and providing graphical indication of the one or more actions of the descent strategy on a display device at respective points along a route from the current position to the airport. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16, 17, 18, 19, 20)
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10. A system comprising:
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a display device having a map associated with an aircraft displayed thereon, the map including a graphical representation of the aircraft, a graphical representation of an airport, and a graphical representation of a route from a current position of the aircraft to the airport; and a processing system coupled to the display device to; determine a flap extension point for an approach to the airport based at least in part on a decision point proximate the airport and one or more stabilization criteria, the one or more stabilization criteria including at least one of a maximum airspeed limit and a maximum descent rate limit; determine one or more validation criteria associated with the flap extension point based on the one or more stabilization criteria, the one or more validation criteria include at least one of a minimum airspeed at the flap extension point and a maximum airspeed at the flap extension point; determine a current energy level associated with the aircraft; determine a descent strategy for navigating the aircraft from the current position to the flap extension point for the approach to the airport based at least in part on the current energy level, the current position, and the one or more validation criteria associated with the flap extension point, wherein the descent strategy comprises one or more actions to decrease an energy level of the aircraft to satisfy the one or more validation criteria upon reaching the flap extension point; and provide graphical indication of the one or more actions of the descent strategy on the map at respective points the route from the current position to the airport. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification