Disclosed is a runway alerting method and system for an aircraft performing a landing maneuver. During the landing maneuver, a minimum stopping position and a maximum stopping position for the aircraft along the runway is determined using aircraft energy state, deceleration and braking information.
Disclosed is a runway alerting method and system for an aircraft performing a landing maneuver. During the landing maneuver, a minimum stopping position and a maximum stopping position for the aircraft along the runway is determined using aircraft energy state, deceleration and braking information. The minimum stopping position is based upon the aircraft performing a maximum flare maneuver prior to touchdown on the runway and the maximum stopping position is based upon the aircraft performing a minimum flare maneuver prior to touchdown on the runway. The minimum and maximum stopping positions are presented to the aircraft pilot on a display to assist the pilot in safely landing the aircraft.
대표청구항▼
1. In an aircraft performing a landing maneuver on a runway, a runway alerting method for the aircraft comprising: (a) receiving, by a processor, information from sensors onboard the aircraft during the landing maneuver; (b) determining, in the processor, a minimum stopping position and a maximum st
1. In an aircraft performing a landing maneuver on a runway, a runway alerting method for the aircraft comprising: (a) receiving, by a processor, information from sensors onboard the aircraft during the landing maneuver; (b) determining, in the processor, a minimum stopping position and a maximum stopping position for the aircraft along the runway using aircraft energy, deceleration and braking information, the minimum stopping position being determined based upon the aircraft performing a maximum flare maneuver prior to touchdown on the runway and the maximum stopping position being determined based upon the aircraft performing a minimum flare maneuver prior to touchdown on the runway, and wherein the minimum stopping position and the corporate maximum stopping position are determined using the equation: Stoppingpoint=BrkonPt+V22×Awhere: BrkonPt is the position on the runway (distance from runway start) where deceleration is predicted to begin begins as determined by the second apparatus; V is the speed of the aircraft as determined by the first apparatus; and |A| is the absolute value of the acceleration (deceleration being a negative value) using either the maximum deceleration or the corporate deceleration depending on which predicted stopping point is being computed; (c) controlling, by the processor, a display unit onboard the aircraft to display the minimum stopping position and the maximum stopping position of the aircraft to provide predicted indications of the aircraft position relative to the runway at the conclusion of the landing maneuver; and (d) repeating steps (a) through (c) until the aircraft has completed the landing maneuver. 2. The method of claim 1, wherein the minimum stopping position is determined using a maximum deceleration value for the aircraft. 3. The method of claim 1, wherein the maximum stopping position is determined using a minimum deceleration value for the aircraft. 4. The method of claim 1, wherein additional stopping positions are determined using other aircraft flare and deceleration values for the aircraft. 5. The method of claim 1, further comprising activating a runway overrun monitor system for the aircraft as the aircraft approaches the runway. 6. The method of claim 1, wherein controlling the display unit further comprises the processor controlling the display unit to display a graphical illustration of the runway and displaying an overlay to indicate the minimum stopping positions position and the maximum stopping position relative to a runway end point. 7. The landing method of claim 6, further the processor controlling the display unit to display a trending indication to indicate whether the minimum and maximum stopping positions are trending further down the runway or trending toward the aircraft being able to stop within a remaining runway distance. 8. The method of claim 6, further comprising providing a runway distance caution message when the maximum stopping position exceeds a remaining runway distance and the minimum stopping position remains within the remaining runway distance. 9. The method of claim 6, further comprising providing a runway distance caution message when the minimum stopping position less an operator selected buffer distance exceeds a remaining runway distance, and the minimum stopping position remains within the remaining runway distance. 10. The method of claim 6, further comprising providing a runway distance warning or go-around message when both the maximum stopping position and the minimum stopping position exceed a remaining runway distance. 11. The method of claim 6, further comprising providing an alert message when a predicted touchdown point is too close to an end of the runway. 12. An aircraft comprising: a first apparatus that is configured to determine an aircraft speed relative to the ground while the aircraft is performing a landing maneuver; a second apparatus that is configured to determine a position along a runway when the aircraft is in contact with the ground following touchdown during the landing maneuver; a flight system coupled to the first apparatus and the second apparatus, the flight system configured to: activate a runway overrun monitor system for the aircraft as the aircraft approaches the runway during the landing maneuver; determine a minimum stopping position for the aircraft along the runway using the aircraft speed and the predicted position along a runway when the aircraft begins deceleration, the minimum stopping position based upon the aircraft performing a maximum flare maneuver prior to touchdown on the runway and wherein the minimum stopping position is determined using the equation: Stoppingpoint=BrkonPt+V22×Awhere: BrkonPt is the position on the runway (distance from runway start) where deceleration is predicted to begin begins as determined by the second apparatus; V is the speed of the aircraft as determined by the first apparatus; and |A| is the absolute value of the acceleration (deceleration being a negative value) using a maximum deceleration for the aircraft; determine a corporate stopping position for the aircraft along the runway using the aircraft speed and the predicted position along a runway when the aircraft begins deceleration, the corporate stopping position based upon the aircraft performing a minimum flare maneuver prior to touchdown on the runway and wherein the corporate stopping position is determined using the equation: Stoppingpoint=BrkonPt+V22×Awhere: BrkonPt is the position on the runway (distance from runway start) where deceleration is predicted to begin begins as determined by the second apparatus; V is the speed of the aircraft as determined by the first apparatus; and |A| is the absolute value of the acceleration (deceleration being a negative value) using a corporate deceleration value for the aircraft; and display predicted indications of the minimum stopping position and the corporate stopping position at the conclusion of the landing maneuver relative to an end of the runway on a display. 13. The aircraft of claim 12, wherein the flight system determines the minimum stopping position using a maximum deceleration value for the aircraft. 14. The aircraft of claim 12, wherein the flight system determines the corporate stopping position using a minimum deceleration value for the aircraft. 15. The aircraft of claim 12, wherein the flight system displays the minimum stopping position and the corporate stopping position on the display by displaying an illustration of the runway and displaying an overlay to indicate the minimum stopping position and the corporate stopping position relative to a remaining runway distance. 16. The aircraft of claim 15, wherein the flight system also displays a trending indication to indicate whether the aircraft is trending further down the runway or trending to stop within the remaining runway distance. 17. The aircraft of claim 12, wherein the flight system also provides a runway distance caution message when the corporate stopping position exceeds the remaining runway distance and the minimum stopping position remains within a remaining runway distance. 18. The aircraft of claim 12, wherein the flight system also provides a landing distance warning or go-around message when both the corporate stopping position and the maximum stopping position exceed a remaining runway distance. 19. A non-transitory computer readable medium embodying a computer program product, said computer program product comprising: an aircraft landing program, the aircraft landing program configured to: activate a runway overrun monitor system for the aircraft as the aircraft approaches a runway during a landing maneuver; determine a minimum stopping position for the aircraft along the runway using the aircraft speed and the predicted position along a runway when the aircraft begins deceleration, the minimum stopping position based upon the aircraft performing a maximum flare maneuver prior to touchdown on the runway and wherein the minimum stopping position is determined using the equation: Stoppingpoint=BrkonPt+V22×Awhere: BrkonPt is the position on the runway (distance from runway start) where deceleration is predicted to begin begins as determined by the second apparatus; V is the speed of the aircraft as determined by the first apparatus; and |A| is the absolute value of the acceleration (deceleration being a negative value) using a maximum deceleration for the aircraft; determine a corporate stopping position for the aircraft along the runway using the aircraft speed and the predicted position along a runway when the aircraft begins deceleration, the corporate stopping position based upon the aircraft performing a minimum flare maneuver prior to touchdown on the runway and wherein the corporate stopping position is determined using the equation: Stoppingpoint=BrkonPt+V22×Awhere: BrkonPt is the position on the runway (distance from runway start) where deceleration is predicted to begin begins as determined by the second apparatus; V is the speed of the aircraft as determined by the first apparatus; and |A| is the absolute value of the acceleration (deceleration being a negative value) using a corporate deceleration value for the aircraft; and display the minimum stopping position and the corporate stopping position on a display. 20. The non-transitory computer readable medium embodying the computer program product according to claim 19, the aircraft landing program further configured to display an illustration of the runway and displaying an overlay to indicate the minimum stopping position and the corporate stopping position relative to a remaining runway distance. 21. The non-transitory computer readable medium embodying the computer program product according to claim 19, the aircraft landing program further configured to display a trending indication to indicate whether the aircraft is trending further down the runway or trending to stop within a remaining runway distance. 22. The non-transitory computer readable medium embodying the computer program product according to claim 19, the aircraft landing program further configured to provide a runway distance warning message when the corporate stopping position exceeds a remaining runway distance and the minimum stopping position remains within the remaining runway distance. 23. The non-transitory computer readable medium embodying the computer program product according to claim 19, the aircraft landing program further configured to provide a go-around message when both the corporate stopping position and the minimum stopping position exceed a remaining runway distance.
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이 특허에 인용된 특허 (12)
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