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System and method for on-board determination of aircraft weight and load-related characteristics

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01G-019/08    G01G-019/14   
미국특허분류(USC) 701/037 ; 73/065.05 ; 177/136 ; 177/141 ; 702/101 ; 701/124
출원번호 US-0852855 (1997-05-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Baker Botts L.L.P.
인용정보 피인용 횟수 : 30  인용 특허 : 34
초록
▼

An on-board aircraft system for determining the weight and load-related characteristics of an aircraft having landing gear struts (which each have a strut cylinder, a strut piston, and a working fluid in the strut cylinder) includes an accelerometer associated with each gear strut for measuring acceleration. The system further includes a pressure-adjustment means coupled to each strut cylinder for selectively adjusting the pressure in each strut cylinder to cause each landing gear strut to extend and retract; a plurality of pressure transducers coupled t...

대표
청구항
▼

[ What is claimed is:] [11.] A method for determining weight on an aircraft gear strut having a strut cylinder with a working fluid and a strut piston, the method comprising the steps of: retracting and extending the strut;taking and storing strut cylinder pressure measurements during the retraction (P.sub.r) and extension (P.sub.e) of the strut;taking and storing acceleration measurements (a.sub.r and a.sub.e) corresponding to each pressure measurement taken; andcalculating the weight on the strut based on the pressure measurements and the acceleration ...

이 특허에 인용된 특허 (34)

  1. Hfner Hans W. (Aichach DEX). Aircraft and system and method for operating thereof. USP1992125167385.
  2. Glover, John H.. Aircraft in-flight center of gravity measuring system. USP1985104545019.
  3. Raskin, Seymour H.. Aircraft weighing systems. USP1983054385527.
  4. Bateman Charles D. (Bellevue WA). Aircraft weight and balance system with automatic loading error correction. USP1985034507742.
  5. Gilliam Raymond J. (Stratford CT). Aircraft weight and center of gravity cockpit readout system. USP1984074463428.
  6. Nance C. Kirk (P.O. Box 120605 Arlington TX 76012). Aircraft weight and center of gravity indicator. USP1993055214586.
  7. Junginger Hilbert (1904 Burning Tree La. Denton TX 76201). Apparatus and method for weighing aircraft. USP1993115258582.
  8. Wendt Hans J. (Buxtehude DEX). Apparatus for loading and unloading an aircraft and ascertaining the weight of the load. USP1980094225926.
  9. Passarelli Frank (323 S. Church La. Los Angeles CA 90049). Apparatus for measuring load by propagation of an acoustic wave within a rigid structure. USP1992125170366.
  10. Patzig Hans-Norbert (Bad Homburg DEX) Schult Klaus (Frankfurt DEX). Arrangement of sensors on the landing gear of an aircraft for measuring the weight and position of center of gravity of. USP1993115257756.
  11. Hrusch Louis C. (Chesterland OH). Articulated main landing gear. USP1976043951361.
  12. White David (Bristol GB2). Auxiliary control of aircraft landing gear movement. USP1995105460340.
  13. Palekhin Vladimir A. (ulitsa Chernyakhovskogo ; 30 ; kv. 56 Smolensk SUX) Neiman Alexandr A. (Volgogradsky prospekt ; 169 ; kv. 10 Moscow SUX) Kagan Veniamin G. (Golikovsky pereulok ; 13 ; kv. 1 Mosc. Device for telemetering loads on power transmission line conductors. USP1980074210902.
  14. Goodall Richard (3312 - 38th Ave. West Seattle WA 98199). Digital data link for truck weighing applications. USP1982054328494.
  15. Miller Harry (Scottsdale AZ). Enroute weight computer for aircraft. USP1985014494210.
  16. Molinar Tommy B. (Ft. Worth TX) Johnston Jerome E. (Austin TX). Highly accurate weighing system. USP1990104967384.
  17. Kister Horst (Wehrheim DEX) Schwab Jean-Francois (Schmitten DEX) Quenzer Michael (Frankfurt am Main DEX) Schult Klaus (Frankfurt am Main DEX) Patzig Hans-Norbert (Bad Homburg DEX). Holding device for mounting an electric transducer. USP1988114782706.
  18. McHale Charles J. (Pointe Claire CAX) Marrone Joseph (Dollard-des-Ormeaux CAX) Watson David (Vaudreuil CAX). Method and apparatus for determining weight and center of gravity of a vehicle. USP1990064935885.
  19. McHale Charles J. (Pointe Claire CAX) Marrone Joseph (St. Leonard CAX) Watson David (Hudson CAX). Method and apparatus for determining weight and center of gravity of a vehicle. USP1987014639872.
  20. Orgun, Munir; Flannigan, Sean J.. Method and apparatus for real time estimation of aircraft center of gravity. USP1991075034896.
  21. Klatt, Alfred. Method and apparatus to automatically determine the weight or mass of a moving vehicle. USP1985104548079.
  22. Labrecque ; Jean P.. Oil level indicator for use with damping fluid metering pins. USP1978064092947.
  23. Lindberg George R. (Fort Worth TX) Thomas Harold O. (Arlington TX). On-board aircraft weighting and center of gravity determing apparatus and method. USP1996055521827.
  24. Gower David (Toms River NJ). Portable weighing system for aircraft. USP1985034502555.
  25. Buisson Dominique (Villemur FRX) Moline Augustin (Pibrac FRX). Process and system for determining the longitudinal position of the center of gravity of an aircraft provided with an ad. USP1990064937754.
  26. Davis Dick E. (Arlington TX) Brazell Charles R. (Arlington TX) Manley James W. (Kennedale TX). Self-contained weighing system and method. USP1992075131482.
  27. Nelson Harold K. (Seattle WA) Kleingartner Charles A. (Bothell WA) Vetsch LeRoy E. (Bothell WA). Strain/deflection sensitive variable reluctance transducer assembly. USP1981054269070.
  28. Castle Jonathan (Mission Hills CA) Osterberg Bruce H. (Escondido CA). System for ensuring valid communications between a central control and a plurality of remote modules. USP1991024992775.
  29. Miller Harry (Scottsdale AZ). Takeoff weight computer apparatus for aircraft. USP1984124490802.
  30. Sol David (Dearborn MI) Watanabe Shunso F. (Livonia MI). Vehicle inertia and center of gravity estimator. USP1992085136513.
  31. Tarter Ralph E. (20308 Knollwood Dr. Saratoga CA 95070) Gerstbauer Timothy M. (16520 Shamrock Dr. Mishawaka IN 46544). Vehicle on-board weighing system and method. USP1995045410109.
  32. Miller ; Harry. Weight and balance computer apparatus for aircraft. USP1978084110605.
  33. Bateman Charles D. (Bellevue WA). Weight, balance, and tire pressure detection systems. USP1982014312042.
  34. Castle Jonathan (Mission Hills CA). Wireless weighing system. USP1990114969112.

이 특허를 인용한 특허 피인용횟수: 30

  1. Lou, Ken-An. Actively variable shock absorbing strut and system. USP2014118886402.
  2. Nance,C. Kirk. Aircraft landing gear automated inspection and life limitation escalation system and method. USP2007037193530.
  3. Nance, C. Kirk. Aircraft landing gear automated inspection for presence of internal oxygen contamination. USP2013108565965.
  4. Nance, C. Kirk. Aircraft landing gear compression rate monitor. USP2011108042765.
  5. Nance, C. Kirk. Aircraft landing gear compression rate monitor and method to increase aircraft landing weight limitation. USP2012058180504.
  6. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2009067552803.
  7. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2014048695764.
  8. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2013098528400.
  9. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2014128919182.
  10. Nance C. Kirk. Aircraft weight and center of gravity indicator. USP2001056237406.
  11. Giazotto, Alessandro Riccardo Britannico. Apparatus and method suitable for measuring the displacement or load on an aircraft component. USP2009087578199.
  12. Adams, John; Hendrickson, Marty. Digital inclinometer and related methods. USP2005046880258.
  13. Edmonson, Jeremy Richard; Coombs, Joshua. Hydraulic pump system and method of operation. USP2017029574582.
  14. Saxon,Nancy L.; Eckelberry,James; Ma,John K.; Maly, Jr.,Frank A.; Melekian,Joseph; Miller,Steven R.; Somnay,Rajesh J.. Intelligent load distribution system. USP2006077072763.
  15. Yates, Michael Stuart; Keen, Philip Gregory. Landing load monitor for aircraft landing gear. USP2011118055396.
  16. Song, Xubin; Osorio, Carlos Fernando; Edmondson, Jeremy Richard. Mean pressure estimation for compressible fluid strut. USP2005086935639.
  17. Almalki, Mohammad F.; Elshafei, Moustafa. Method and apparatus for tracking center of gravity of air vehicle. USP2012098260477.
  18. Giazotto,Alessandro Riccardo Britannico. Method and apparatus suitable for measuring the displacement or load on an aircraft component. USP2009037506549.
  19. Fox Peter F.. Method of pre-planning the loading of aircraft. USP2001106308131.
  20. Nance, C. Kirk. Methods for determination of optimum sequence for automated activation of onboard aircraft weight and balance system. USP2013098543322.
  21. Long, Michael A.; Gouette, Geoffrey E.. Onboard aircraft weight and balance system. USP2012128340892.
  22. Fazeli, Amir M.; Cepic, Adnan; Reber, Susanne M.. Servicing monitoring system for mixed fluid-gas shock struts. USP2016039285007.
  23. Schmidt, Robert Kyle. Shock absorber. USP2018039914532.
  24. Coombs, Joshua; Edmondson, Jeremy. Suspension strut for a vehicle. USP2013098534687.
  25. Coombs, Joshua; Edmondson, Jeremy. Suspension strut for a vehicle. USP2015109150076.
  26. Coombs, Joshua; Edmondson, Jeremy. Suspension strut for a vehicle. USP20181110125841.
  27. Don S. Godwin ; Kenneth D. Driver ; Joseph C. Gray ; Richard J. Gritter. System and apparatus for determining the center of gravity of an aircraft. USP2002036353793.
  28. Godwin, Don S.; Driver, Kenneth D.; Gray, Joseph C.; Gritter, Richard J.. System and apparatus for determining the center of gravity of an aircraft. USP2003056564142.
  29. Mardirossian,Aris. System and method of measuring weight of passengers and luggage, and weight distribution of aircraft. USP2007107281418.
  30. Gottfriedsen, Jan; Urschel, Patrick. Weighing device, in particular, multiple-track weighing device. USP2010087767915.

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