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System and method for controlling an independent metering valve 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F15B-013/044
  • F15B-013/08
출원번호 US-0845337 (1997-04-25)
발명자 / 주소
  • Aardema James A.
  • Koehler Douglas W.
출원인 / 주소
  • Caterpillar Inc.
대리인 / 주소
    Glastetter
인용정보 피인용 횟수 : 65  인용 특허 : 4

초록 ▼

A system and method for controlling an independent metering valve operating in a hydraulic circuit determines a displacement command for one or more metering valves to provide desired flows through the metering valves and desired pressure drops across the metering valves. The system determines the d

대표청구항 ▼

[ We claim:] [1.] A system for controlling a hydraulic circuit including a metering valve and a hydraulic device, the system comprising:flow determining means for determining a desired flow through the metering valve based on a requested velocity;pressure drop determining means for determining a des

이 특허에 인용된 특허 (4)

  1. Reinhardt Peter (Lohr DEX), Electrical measured value processing for a control valve.
    상세보기
  2. Holloway Dwight S. (Chillicothe IL) Marsden Howard A. (Pekin IL), Hydraulic control apparatus.
    상세보기
  3. Gardner Cynthia M. (North Aurora IL) Stone Robert E. (Germantown Hills IL) Duffy John D. (Peoria IL) Allen William E. (Peoria IL) Schimpf James E. (Plainfield IL), Method and apparatus for controlling an implement of a work machine.
    상세보기
  4. Koehler Douglas W. (Naperville IL) Krone John J. (Dunlap IL), Tilt priority scheme for a control system.
    상세보기

이 특허를 인용한 특허 (65)

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  5. Lunzman, Stephen Victor; Huang, Xiaodong; Shively, Kirk Stephen; Holt, Bradford Jay, Control for electro-hydraulic valve arrangement.
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  6. Plougsgaard, Helge Soe; Ploug, Ole, Control system for a hydraulic servomotor.
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  7. Poorman Bryan G., Control system for controlling the speed of a hydraulic motor.
    상세보기
  8. Steinhilber, Armin, Device for controlling the movement of a hydraulic cylinder, particularly for hydraulic machines.
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  9. Geerkens, Christian; Hartmann, Ralf; Hild, Berthold; Watzlaw, Meinhard, Device for hydraulically adjusting the rollers of strand guiding segments of a continuous casting installation.
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  10. Smith, David P., Electro-hydraulic pump control system.
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  14. Vonderwell,Mark P.; Guo,Yun; Sorokine,Mikhall A.; Egelja,Aleksandar M; Ma,Pengfei, Electronically and hydraulically-actuated drain value.
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  15. De Vries, Gerhardus; Noll, Gerd; Maglot, Wolfgang, Electropneumatic windshield wiper drive for a rail vehicle, drive for a windshield wiper and pneumatic system for operating a drive for a windshield wiper.
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  16. Schuh, Scott N.; St. Aubin, Joseph A.; Coykendall, William B., Enabling valve having separate float and lift down positions.
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  20. Theobald, Daniel; Hofmann, Andreas, High efficiency actuator method, system and apparatus.
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  21. Nielsen, Brian; Ploug, Ole; Patterson, Chad M., Hydraulic actuator for a servomotor with an end lock function.
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  23. Dwight B. Stephenson ; Joseph Lawrence Pfaff, Hydraulic circuit with a return line metering valve and method of operation.
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  26. Tabor,Keith A., Hydraulic control system with cross function regeneration.
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  27. Yoshino, Kazunori, Hydraulic control system with regeneration.
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  28. Pfaff,Joseph L., Hydraulic metering mode transitioning technique for a velocity based control system.
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  29. Verkuilen, Michael T.; Krone, John J.; Koehler, Douglas W.; Aardema, James A., Hydraulic system and method for control.
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  30. Ma,Pengfei; Egelja,Aleksandar M.; Sorokine,Mikhail A., Hydraulic system having IMV ride control configuration.
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  31. Zhang,Jiao; Ma,Pengfei; Schwab,Michael R., Hydraulic system having a post-pressure compensator.
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  32. Ma,Pengfei; St. Germain,Gene Richard; Zhang,Jiao; Egelja,Aleksandar M.; Lehmann,Robert Scot; Sorokine,Michael A., Hydraulic system having a pressure compensator.
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  34. Kerckhove, Philippe Vande; Aardema, James A.; Ma, Pengfei; Patel, Kalpesh, Hydraulic system having an external pressure compensator.
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  39. Stephenson,Dwight B., Hydraulic system with a cylinder isolation valve.
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  40. Stephenson, Dwight B.; Jackson, Randall S.; Clifton, Brian, Hydraulic system with cross function regeneration.
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  41. Turner, Christopher Wayne; Raimao, Miguel Angelo; Babbitt, Guy Robert, Hydraulic valve actuation systems and methods.
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    상세보기
  44. Gehlhoff, Wade L.; Schottler, Chris W., Method for operating a hydraulic actuation power system experiencing pressure sensor faults.
    상세보기
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  61. Tabor, Keith A., Velocity based method for controlling a hydraulic system.
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  62. Tabor, Keith A., Velocity based method of controlling an electrohydraulic proportional control valve.
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