Aircraft gross weight and center of gravity validator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-007/70
B64D-031/00
B64D-045/00
출원번호
US-0781961
(2013-03-01)
등록번호
US-8849480
(2014-09-30)
발명자
/ 주소
Elias, Frank Rajkumar
Nathan, Visvanathan Thanigai
출원인 / 주소
Honeywell International Inc.
대리인 / 주소
Fogg & Powers LLC
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
A system for validating ground determination of gross weight of aircraft includes sensor(s) that generates information regarding ground determination of gross weight while parked at parking bay; processing device that receives information regarding ground determination of gross weight of the aircraf
A system for validating ground determination of gross weight of aircraft includes sensor(s) that generates information regarding ground determination of gross weight while parked at parking bay; processing device that receives information regarding ground determination of gross weight of the aircraft from sensor(s); and computer memory communicatively coupled to processing device. Processing device determines ground determination based on information regarding ground determination of gross weight generated by sensor. Processing device determines gross weight in air after takeoff based on indicated airspeed, angle of attack, and thrust applied to aircraft. Processing device determines error between ground determination and air determination of gross weight taking into account reduction in gross weight due to fuel consumed since receiving ground determination. Processing device updates information regarding relationship between ground determination and air determination of gross weight. Computer memory stores updated information regarding relationship for use next time aircraft parks at parking bay.
대표청구항▼
1. A system for validating a ground determination of a gross weight of an aircraft, the system comprising: at least one sensor configured to generate information regarding a ground determination of gross weight of an aircraft while parked at an aircraft parking bay on the ground before takeoff;at le
1. A system for validating a ground determination of a gross weight of an aircraft, the system comprising: at least one sensor configured to generate information regarding a ground determination of gross weight of an aircraft while parked at an aircraft parking bay on the ground before takeoff;at least one processing device communicatively coupled to the at least one sensor and configured to receive the information regarding the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff from the at least one sensor;at least one computer memory communicatively coupled to the at least one processing device;wherein the at least one processing device is configured to determine the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff based on the information regarding the ground determination of gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff generated by the at least one sensor;wherein the at least one processing device is further configured to determine the gross weight of the aircraft in the air after takeoff based on an indicated airspeed of the aircraft, an angle of attack of the aircraft, and thrust applied to the aircraft;wherein the at least one processing device is further configured to determine a first error between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air while taking into account any reduction in gross weight of the aircraft due to fuel consumed since receiving the ground determination of the gross weight of the aircraft parked at the aircraft parking bay on the ground;wherein the at least one processing device is further configured to update information regarding a relationship between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air; andwherein the at least one computer memory is configured to store the updated information regarding the relationship for use next time the aircraft parks at the aircraft parking bay on the ground. 2. The system of claim 1, further comprising: an indicated airspeed sensor communicatively coupled to the at least one processing device, the indicated airspeed sensor configured to determine and provide the indicated airspeed of the aircraft to the at least one processing device;an angle of attack sensor communicatively coupled to the at least one processing device, the angle of attack sensor configured to determine and provide the angle of attack of the aircraft to the at least one processing device; anda thrust level output communicatively coupled to the at least one processing device, the thrust level output configured to provide the thrust applied to the aircraft to the at least one processing device. 3. The system of claim 1, wherein the at least one processing device is further configured to correct the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff based on information regarding the relationship stored in the computer memory. 4. The system of claim 1, wherein the at least one processing device is further configured to determine whether the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff falls within an acceptable gross weight range stored in the at least one computer memory, wherein the acceptable gross weight range is determined based on the updated information regarding the relationship between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air. 5. The system of claim 4, further comprising a human-machine interface communicatively coupled to the at least one processing device; and wherein the at least one processing device is further configured to alert an operator of the aircraft through the human-machine interface before takeoff of the aircraft when the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff does not fall within the acceptable gross weight range. 6. The system of claim 1, further comprising a human-machine interface communicatively coupled to the at least one processing device; and wherein the at least one processing device is further configured to receive the ground determination of gross weight of the aircraft while parked at the aircraft parking bay on the ground input through the human-machine interface. 7. The system of claim 6, wherein the at least one sensor includes at least one of a pressure sensor, a stress sensor, a torque sensor, a strain gauge, a Surface Acoustic Wave (SAW) sensor, and a piezoelectric sensor mounted on at least one of a strut, an oleo, a hinge, a pivot pin, a trunnion pin, and a resting point on a spar; and wherein the information regarding the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff is at least one of weight, pressure, stress, torque, and strain on at least one landing gear of the aircraft. 8. The system of claim 1, further comprising: wherein the at least one processing device is configured to determine a ground determination of a center of gravity of the aircraft while parked at the aircraft parking bay on the ground before takeoff based on at least one device configured to generate information regarding the ground determination of the center of gravity of the aircraft while parked at an aircraft parking bay on the ground before takeoff;wherein the at least one processing device is further configured to determine an air determination of the center of gravity of the aircraft in the air after takeoff based on information regarding the air determination of the center of gravity of the aircraft in the air after takeoff from at least one device onboard the aircraft;wherein the at least one processing device is further configured to determine a second error between the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground and the air determination of center of gravity of the aircraft while in the air while taking into account any reduction in gross weight of the aircraft due to fuel consumed since receiving the ground determination of the gross weight of the aircraft parked at the aircraft parking bay on the ground;wherein the at least one processing device is configured to update information regarding a second relationship between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air; andwherein the at least one computer memory is further configured to store the updated information regarding the relationship for use next time the aircraft parks at the aircraft parking bay on the ground. 9. The system of claim 8, wherein the at least one device that provides information regarding the air determination of the center of gravity of the aircraft in the air after takeoff from at least one device onboard the aircraft is a Trimable Horizontal Stabilizer. 10. The system of claim 1, further comprising at least one sensor configured to generate and provide information regarding the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff to the at least one processing device; and an inertial measurement device configured to determine a static attitude of the aircraft when the ground determination of the gross weight of the aircraft is received while the aircraft is parked at the aircraft parking bay on the ground before takeoff and provide the static attitude to the at least one processing device; andwherein the at least one processing device is configured to receive a ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground before takeoff by processing the information regarding the ground determination of gross weight and static attitude of the aircraft while parked at the aircraft parking bay on the ground before takeoff. 11. A method for validating a ground determination of a gross weight of an aircraft against an air determination of gross weight comprising: generating information regarding a ground determination of gross weight of an aircraft while parked at an aircraft parking bay on the ground before takeoff using at least one sensor;determining the ground determination of gross weight of an aircraft while parked at an aircraft parking bay on the ground before takeoff based on the information regarding the ground determination of gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff generated by the at least one sensor;determining an air determination of gross weight of the aircraft in the air after takeoff based on an indicated airspeed of the aircraft, an angle of attack of the aircraft, and thrust applied to the aircraft;determining a first error between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air while taking into account any reduction in gross weight of the aircraft due to fuel consumed since determining the ground determination of the gross weight of the aircraft parked at the aircraft parking bay on the ground;updating information regarding a relationship between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air; andstoring the updated information regarding the relationship in the computer memory for use next time the aircraft parks at the aircraft parking bay on the ground. 12. The method of claim 11, further comprising: receiving the indicated airspeed of the aircraft from an indicated airspeed sensor;receiving the angle of attack of the aircraft from an angle of attack sensor; andreceiving the thrust applied to the aircraft from a thrust level output. 13. The method of claim 11, further comprising: correcting the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff based on information regarding the relationship stored in the computer memory. 14. The method of claim 11, further comprising: determining whether the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff falls within an acceptable gross weight range stored in a computer memory. 15. The method of claim 11, further comprising: alerting an operator of the aircraft before takeoff of the aircraft when the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff does not fall within the acceptable gross weight range. 16. The method of claim 11, further comprising: storing the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground in a computer memory;storing the air determination of gross weight of the aircraft while in the air in the computer memory; andstoring the determined error between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air in the computer memory. 17. The method of claim 11, further comprising: generate information regarding a ground determination of a center of gravity of the aircraft while parked at an aircraft parking bay on the ground before takeoff using at least one sensor;determining the ground determination of a center of gravity of the aircraft while parked at the aircraft parking bay on the ground before takeoff based the information regarding the ground determination of center of gravity of the aircraft while parked at the aircraft parking bay on the ground before takeoff;determining an air determination of the center of gravity of the aircraft in the air after takeoff based on information regarding the air determination of the center of gravity of the aircraft in the air after takeoff from at least one device onboard the aircraft;determining a second error between the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground and the air determination of center of gravity of the aircraft while in the air while taking into account any change in the center of gravity due to at least one of fuel consumed and change in position of landing gear since determining the ground determination of the center of gravity of the aircraft parked at the aircraft parking bay on the ground;updating information regarding a second relationship between the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground and the air determination of center of gravity of the aircraft while in the air; andstoring the updated information regarding the second relationship in the computer memory for use next time the aircraft parks at the aircraft parking bay on the ground. 18. The method of claim 17, further comprising: determining a static attitude of the aircraft while parked at the aircraft parking bay on the ground before takeoff using an inertial measurement device;providing the static attitude to the at least one processing device; andwherein receiving a ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay includes receiving weight determinations for each landing gear from at least one landing gear sensor and comparing the weight determinations for each landing gear in view of the static attitude of the aircraft while parked at the parking bay on the ground before takeoff to determine the center of gravity of the aircraft. 19. A system for validating a ground determination of a gross weight of an aircraft, the system comprising: at least one processing device;at least one computer memory communicatively coupled to the at least one processing device;at least one human-machine interface communicatively coupled to the at least one processing device;an inertial measurement device communicatively coupled to the at least one processing device and configured to determine a static attitude of the aircraft while parked at an aircraft parking bay on the ground before takeoff and provide the static attitude to the at least one processing device;a plurality of sensors configured to generate and provide weight information regarding the weight at each landing gear strut of the aircraft while parked at the aircraft parking bay on the ground before takeoff to the at least one processing device;an indicated airspeed sensor communicatively coupled to the at least one processing device, the indicated airspeed sensor configured to determine and provide the indicated airspeed of the aircraft while airborne to the at least one processing device;an angle of attack sensor communicatively coupled to the at least one processing device, the angle of attack sensor configured to determine and provide the angle of attack of the aircraft while airborne to the at least one processing device;a thrust measurement output communicatively coupled to the at least one processing device, the thrust sensor configured to provide the thrust applied to the aircraft to the at least one processing device;a Trimable Horizontal Stabilizer communicatively coupled to the at least one processing device, the Trimable Horizontal Stabilizer configured to provide information regarding the center of gravity of the aircraft while airborne to the at least one processing device;wherein the at least one processing device is configured to determine a ground determination of the gross weight of an aircraft while parked at the aircraft parking bay on the ground before takeoff based on the weight information regarding the weight at each landing gear strut of the aircraft provided by the at least one sensor;wherein the at least one processing device is further configured to determine a ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground before takeoff based on the weight information regarding the weight at each landing gear strut of the aircraft provided by the plurality of sensors and the static attitude of the aircraft while parked at an aircraft parking bay on the ground before takeoff provided by the inertial measurement device;wherein the at least one processing device is further configured to determine an air determination of the gross weight of the aircraft in the air after takeoff based on an indicated airspeed of the aircraft determined by the indicated airspeed sensor, an angle of attack of the aircraft, and thrust applied to the aircraft;wherein the at least one processing device is further configured to determine a first error between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air while taking into account any reduction in gross weight of the aircraft due to fuel consumed since receiving the ground determination of the gross weight of the aircraft parked at the aircraft parking bay on the ground;wherein the at least one processing device is further configured to determine an air determination of the center of gravity of the aircraft in the air after takeoff based on a position of the center of gravity as indicated by a calibrated position of the Trimable Horizontal Stabilizer (THS) referenced to horizontal datum corresponding to a Mean Aerodynamic Chord (MAC) of wings of the aircraft;wherein the at least one processing device is further configured to determine a second error between the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground and the air determination of center of gravity of the aircraft while in the air while taking into account any reduction in gross weight of the aircraft due to fuel consumed since receiving the ground determination of the center of gravity of the aircraft parked at the aircraft parking bay on the ground;wherein the at least one processing device is further configured to update information regarding a first relationship between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air based on the first error;wherein the at least one processing device is further configured to update information regarding a second relationship between the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground and the air determination of center of gravity of the aircraft while in the air based on the second error;wherein the at least one computer memory is configured to store the updated information regarding the first relationship, the updated information regarding the second relationship, the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground, the static attitude of the aircraft when the ground determination of the gross weight of the aircraft is received while the aircraft is parked at the aircraft parking bay on the ground before takeoff, the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground, information identifying the aircraft parking bay when the ground determination of the gross weight of the aircraft is received while the aircraft is parked at the aircraft parking bay on the ground before takeoff, the air determination of gross weight of the aircraft while in the air, the air determination of center of gravity of the aircraft while in the air, the determined error between the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground and the air determination of gross weight of the aircraft while in the air, and the determined error between the ground determination of the center of gravity of the aircraft while parked at the aircraft parking bay on the ground and the air determination of center of gravity of the aircraft while in the air; andwherein the updated information regarding the first relationship and the updated information regarding the second relationship is used next time the aircraft parks at the aircraft parking bay on the ground. 20. The system of claim 19, further comprising: wherein the at least one sensor includes at least one of a pressure sensor, a stress sensor, a torque sensor, a strain gauge, a Surface Acoustic Wave (SAW) sensor, and a piezoelectric sensor mounted on at least one of a strut, an oleo, a hinge, a pivot pin, a trunnion pin, and a resting point on a spar; andwherein the information regarding the ground determination of the gross weight of the aircraft while parked at the aircraft parking bay on the ground before takeoff is at least one of weight, pressure, stress, torque, and strain on at least one landing gear of the aircraft.
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