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특허 상세정보

Electro-hydraulic pump control system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16D-031/02   
미국특허분류(USC) 060/449; 060/450; 060/452; 417/212
출원번호 US-0984055 (2001-10-26)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Finnegan, Henderson, Farabow, Garrett & Dunner
인용정보 피인용 횟수 : 11  인용 특허 : 30
초록

A method is provided for controlling displacement of a variable displacement pump coupled to a load. The method includes determining an electrical signal to be applied to a proportional solenoid for a desired pump displacement based on known pump characteristics. The electrical signal is provided to the proportional solenoid. The displacement of the variable displacement pump is controlled based on the electrical signal to the proportional solenoid.

대표
청구항

A method is provided for controlling displacement of a variable displacement pump coupled to a load. The method includes determining an electrical signal to be applied to a proportional solenoid for a desired pump displacement based on known pump characteristics. The electrical signal is provided to the proportional solenoid. The displacement of the variable displacement pump is controlled based on the electrical signal to the proportional solenoid. said fastening band passes. 11. The fence chain indicator according to any one of claims 1-3, 5 and 6, wh...

이 특허에 인용된 특허 (30)

  1. Hausman Dennis J. (Peoria IL) Rector Stephen W. (Metamora IL) Smith David P. (Joliet IL) Ufheil Steven T. (Peoria IL). Adaptive overspeed control for a hydrostatic transmission. USP1995075435131.
  2. Nozari Farhad. Aircraft hydraulic pump control system. USP1999025865602.
  3. Hongliu Du ; Noah D. Manring. Apparatus and method for controlling a discharge pressure of a variable displacement hydraulic pump. USP2002106468046.
  4. Hongliu Du ; Noah D. Manring. Apparatus and method for controlling a discharge pressure of a variable displacement hydraulic pump. USP2002046374722.
  5. Song Myung-Hoon (Kyungki KRX). Apparatus for and method of controlling engine and pumps of hydraulic construction equipment. USP1996065527156.
  6. Pylat ; Jr. John A. (2378 Topaz Dr. Troy MI 48098). Automatic adjusting deceleration control for a hydrostatically powered device. USP1983084399653.
  7. Izumi Eiki (Ibaraki JPX) Watanabe Hiroshi (Ibaraki JPX) Aoyagi Yukio (Ibaraki JPX) Honma Kazuo (Ibaraki JPX) Nakajima Kichio (Ibaraki JPX). Circuit pressure control system for hydrostatic power transmission. USP1985044510750.
  8. Hatano Kazuhiro (Kanagawa JPX). Control apparatus for hydraulic elevators using fuzzy logic and speed control. USP1993115266756.
  9. Dietz Hans P. (Peoria IL). Control system for a hydraulic cylinder and method. USP1997095666806.
  10. Izumi Eiki (Ibaraki JPX) Tanaka Yasuo (Ibaraki JPX) Watanabe Hiroshi (Ushiku JPX) Nakamura Shigetaka (Tsuchiura JPX). Control system for controlling input power to variable displacement hydraulic pumps of a hydraulic system. USP1989034809504.
  11. Poorman Bryan G.. Control system for controlling the speed of a hydraulic motor. USP2000106131391.
  12. Izumi Eiki (Ibaragi JPX) Tanaka Yasuo (Tsukuba JPX) Watanabe Hiroshi (Ushiku JPX) Yoshida Kuniaki (Tsuchiura JPX) Hirata Toichi (Ushiku JPX). Control system for load-sensing hydraulic drive circuit. USP1990114967557.
  13. Creffield David F. (Grass Lake MI). Control system for variable displacement pumps and motors. USP1984104474104.
  14. Manring Noah D. (Roland IA). Displacement control for a variable displacement axial piston pump. USP1996105564905.
  15. Hutchison, Eric A.; Lukich, Michael S.. Electromagnetically actuated spool valve. USP199306H001191.
  16. Yasuda Tomohiko (Kashiwa JPX) Aoyagi Yukio (Ibaraki JPX). Hydraulic drive system for construction machine. USP1994035295795.
  17. Ishikawa Koji (Ibaraki JPX) Hirata Toichi (Ushiku JPX) Sugiyama Genroku (Ibaraki JPX). Hydraulic drive system for hydraulic working machines. USP1995095447027.
  18. Aoyagi, Yukio; Izumi, Eiki; Yamaguchi, Takeshi; Tanaka, Sotaro. Hydraulic drive system having a plurality of prime movers. USP1985124561250.
  19. Raymond Robert E. (Zanesville OH). Hydraulic motor control apparatus. USP1976083976098.
  20. Tsunemi Masahiro (Miki JPX) Kondo Yuji (Akashi JPX) Shimoura Kenichi (Kobe JPX). Hydraulic motor control circuit. USP1991105058383.
  21. Konishi Hideo,JPX ; Samejima Makoto,JPX. Hydraulic pump control system. USP1999085944492.
  22. Budzich Tadeusz (80 Murwood Dr. Moreland Hills OH 44022). Load responsive system pump controls. USP1979024139987.
  23. Schimpf James E. ; Marcott Tony L.. Load sensing pump control for a variable displacement pump. USP1999035876185.
  24. Hongliu Du ; Noah D. Manring. Method and apparatus for controlling pump discharge pressure of a variable displacement hydraulic pump. USP2002046375433.
  25. Erkkilae Mikko,DEX ; zu Hohenlohe Felix,DEX ; Vogl Karl-Heinz,DEX ; Obertrifter Bernd,DEX. Output regulation with load sensing. USP2000046048177.
  26. Arai Seigo,JPX. Pump controller for construction machine. USP2001096282892.
  27. Aardema James A. ; Koehler Douglas W.. System and method for controlling an independent metering valve. USP1999105960695.
  28. Watts Thomas A. (Ottawa IL). Variable displacement axial piston hydraulic unit. USP1996095554007.
  29. Smith David P.. Variable pump control for hydraulic fan drive. USP2001016179570.
  30. Geringer Kerry G. (Ames IA). Vibration and pressure attenuator for hydraulic units. USP1996125588805.