DE69519556T2 - Betätigungsensor für Stellglieder - Google Patents

Betätigungsensor für Stellglieder

Info

Publication number
DE69519556T2
DE69519556T2 DE69519556T DE69519556T DE69519556T2 DE 69519556 T2 DE69519556 T2 DE 69519556T2 DE 69519556 T DE69519556 T DE 69519556T DE 69519556 T DE69519556 T DE 69519556T DE 69519556 T2 DE69519556 T2 DE 69519556T2
Authority
DE
Germany
Prior art keywords
actuators
actuating sensor
actuating
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69519556T
Other languages
English (en)
Other versions
DE69519556D1 (de
Inventor
Dae Seung Chung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment Korea Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Construction Equipment Korea Co Ltd filed Critical Volvo Construction Equipment Korea Co Ltd
Application granted granted Critical
Publication of DE69519556D1 publication Critical patent/DE69519556D1/de
Publication of DE69519556T2 publication Critical patent/DE69519556T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/167—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load using pilot pressure to sense the demand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/355—Pilot pressure control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/67—Methods for controlling pilot pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/857—Monitoring of fluid pressure systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Measuring Fluid Pressure (AREA)
DE69519556T 1994-10-29 1995-07-11 Betätigungsensor für Stellglieder Expired - Fee Related DE69519556T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940028043A KR100212646B1 (ko) 1994-10-29 1994-10-29 액츄에이터 조작신호 감지장치

Publications (2)

Publication Number Publication Date
DE69519556D1 DE69519556D1 (de) 2001-01-11
DE69519556T2 true DE69519556T2 (de) 2001-04-05

Family

ID=19396445

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69519556T Expired - Fee Related DE69519556T2 (de) 1994-10-29 1995-07-11 Betätigungsensor für Stellglieder

Country Status (6)

Country Link
US (1) US5579677A (de)
EP (1) EP0709578B1 (de)
JP (1) JP2972555B2 (de)
KR (1) KR100212646B1 (de)
CN (1) CN1072322C (de)
DE (1) DE69519556T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018127830A1 (de) * 2018-11-07 2020-05-07 Liebherr-Aerospace Lindenberg Gmbh Elektro-hydrostatisches Betätigungssystem

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520231A (en) * 1968-10-23 1970-07-14 Gen Signal Corp Hydraulic supply systems with flow rate-limiting control
US4067193A (en) * 1976-11-22 1978-01-10 Caterpillar Tractor Co. Combined hydrostatic transmission implement system
JPS61116103A (ja) * 1984-11-09 1986-06-03 Japan Steel Works Ltd:The ２速合流回路
JP2582266B2 (ja) * 1987-09-29 1997-02-19 新キヤタピラー三菱株式会社 流体圧制御システム
WO1989012756A1 (en) * 1988-06-17 1989-12-28 Kabushiki Kaisha Kobe Seiko Sho Fluid control mechanism for power shovels
EP0572678B1 (de) * 1991-12-24 1997-03-12 Hitachi Construction Machinery Co., Ltd. Hydraulischer antrieb für baumaschinen

Also Published As

Publication number Publication date
EP0709578A2 (de) 1996-05-01
EP0709578A3 (de) 1998-06-17
EP0709578B1 (de) 2000-12-06
CN1122416A (zh) 1996-05-15
KR100212646B1 (ko) 1999-08-02
JP2972555B2 (ja) 1999-11-08
CN1072322C (zh) 2001-10-03
DE69519556D1 (de) 2001-01-11
US5579677A (en) 1996-12-03
JPH08128408A (ja) 1996-05-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VOLVO CONSTRUCTION EQUIPMENT HOLDING SWEDEN AB, ES

8339 Ceased/non-payment of the annual fee