WO2012102488A3 - 전자유압펌프를 포함하는 건설기계의 유압 시스템 - Google Patents
전자유압펌프를 포함하는 건설기계의 유압 시스템 Download PDFInfo
- Publication number
- WO2012102488A3 WO2012102488A3 PCT/KR2011/010081 KR2011010081W WO2012102488A3 WO 2012102488 A3 WO2012102488 A3 WO 2012102488A3 KR 2011010081 W KR2011010081 W KR 2011010081W WO 2012102488 A3 WO2012102488 A3 WO 2012102488A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control section
- electronic
- electronic control
- construction machine
- joystick
- Prior art date
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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0426—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with fluid-operated pilot valves, i.e. multiple stage valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
- E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
- E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2282—Systems using center bypass type changeover valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2296—Systems with a variable displacement pump
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/267—Diagnosing or detecting failure of vehicles
- E02F9/268—Diagnosing or detecting failure of vehicles with failure correction follow-up actions
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/002—Electrical failure
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/875—Control measures for coping with failures
- F15B2211/8752—Emergency operation mode, e.g. fail-safe operation mode
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
본 발명은 전자유압펌프를 포함하는 건설기계의 유압 시스템에 관한 것이며, 더욱 구체적으로는 전자유압펌프를 제어하는 전자제어부의 작동이 비정상적일 때, 특히 전자제어부로 조이스틱의 조작량이 전달되지 못하여 전자제어부가 제어 불능시 임시로 건설기계를 구동하는 유압 시스템에 관한 것으로, 이를 위하여 전자제어부는 센터바이패스 밸브를 구동하여 전체 시스템을 개방형으로 전환하고, 조이스틱의 중립 상태를 인식하기 위해, 중립 모드 진입 조건(예컨대, 소정 압력에서 소정 시간 동안 최대 유량 유지)과 중립 모드 탈출 조건을 설정한 후, 이를 이용하여 조이스틱의 중립 상태를 인식하고, 소정의 사판각 제어를 수행하는 중립 모드로 비상 제어를 수행할 수 있다.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/981,161 US9284719B2 (en) | 2011-01-24 | 2011-12-26 | Hydraulic system for construction machine having electronic hydraulic pump |
EP11856946.6A EP2669529B1 (en) | 2011-01-24 | 2011-12-26 | Hydraulic system for construction machine having electronic hydraulic pump |
CN201180065660.2A CN103328830B (zh) | 2011-01-24 | 2011-12-26 | 包括电子液压泵的工程机械的液压*** |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2011-0007073 | 2011-01-24 | ||
KR1020110007073A KR101762951B1 (ko) | 2011-01-24 | 2011-01-24 | 전자유압펌프를 포함하는 건설기계의 유압 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012102488A2 WO2012102488A2 (ko) | 2012-08-02 |
WO2012102488A3 true WO2012102488A3 (ko) | 2012-10-18 |
Family
ID=46581239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/010081 WO2012102488A2 (ko) | 2011-01-24 | 2011-12-26 | 전자유압펌프를 포함하는 건설기계의 유압 시스템 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9284719B2 (ko) |
EP (1) | EP2669529B1 (ko) |
KR (1) | KR101762951B1 (ko) |
CN (1) | CN103328830B (ko) |
WO (1) | WO2012102488A2 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8528684B2 (en) * | 2011-11-30 | 2013-09-10 | Deere & Company | Charge pressure reduction circuit for improved transmission efficiency |
US9739036B2 (en) * | 2012-12-13 | 2017-08-22 | Hyundai Construction Equipment Co., Ltd. | Automatic control system and method for joystick control-based construction equipment |
KR101969175B1 (ko) * | 2012-12-24 | 2019-04-15 | 두산인프라코어 주식회사 | 자동 변속식 굴삭기 |
JP6220228B2 (ja) * | 2013-10-31 | 2017-10-25 | 川崎重工業株式会社 | 建設機械の油圧駆動システム |
EP3140462B1 (en) * | 2014-05-06 | 2020-11-11 | Eaton Intelligent Power Limited | Low noise control algorithm for hydraulic systems |
US10487855B2 (en) * | 2016-09-29 | 2019-11-26 | Deere & Company | Electro-hydraulic system with negative flow control |
KR102423410B1 (ko) * | 2017-03-21 | 2022-07-21 | 현대두산인프라코어 주식회사 | 건설 기계의 비상 운전 방법 및 이를 수행하기 위한 장치 |
EP3575615B1 (en) * | 2018-03-15 | 2022-02-16 | Hitachi Construction Machinery Co., Ltd. | Construction machine |
CA3097337C (en) * | 2018-07-11 | 2022-08-09 | Halliburton Energy Services, Inc. | Using a load sense pump as a backup for a pressure-compensated pump |
WO2020071567A1 (en) * | 2018-10-02 | 2020-04-09 | Volvo Construction Equipment Ab | Device for controlling working unit of construction equipment |
CN111441416A (zh) * | 2020-05-07 | 2020-07-24 | 金华深联网络科技有限公司 | 一种挖掘机作业控制方法及*** |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06213205A (ja) * | 1993-01-14 | 1994-08-02 | Hitachi Constr Mach Co Ltd | 油圧機械の油圧駆動装置 |
JP2000282515A (ja) * | 1999-03-31 | 2000-10-10 | Kobelco Contstruction Machinery Ltd | 建設機械の油圧制御回路 |
JP2006162058A (ja) * | 2004-12-07 | 2006-06-22 | Volvo Construction Equipment Ab | 油圧制御回路及び油圧制御方法 |
KR20100134332A (ko) * | 2009-06-15 | 2010-12-23 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설장비의 조작레버 잠금장치 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2670815B2 (ja) * | 1988-07-29 | 1997-10-29 | 株式会社小松製作所 | 建設機械の制御装置 |
US5138838A (en) * | 1991-02-15 | 1992-08-18 | Caterpillar Inc. | Hydraulic circuit and control system therefor |
JP3445817B2 (ja) | 1993-11-11 | 2003-09-08 | 日立建機株式会社 | 建設機械の油圧駆動装置 |
JPH10174512A (ja) | 1996-12-16 | 1998-06-30 | Yanmar Agricult Equip Co Ltd | 自走車両のニュートラル検出装置 |
JP2711830B2 (ja) | 1997-02-10 | 1998-02-10 | 株式会社小松製作所 | 建設機械の制御装置 |
DE10124564A1 (de) * | 2001-05-14 | 2002-11-28 | Joma Hydromechanic Gmbh | Verfahren zum Verstellen einer volumenstromvariablen Verdrängerpumpe in einem Brennkraftmotor |
JP2006097855A (ja) | 2004-09-30 | 2006-04-13 | Kobelco Contstruction Machinery Ltd | 建設機械の走行制御装置 |
US7905089B2 (en) * | 2007-09-13 | 2011-03-15 | Caterpillar Inc. | Actuator control system implementing adaptive flow control |
KR101470626B1 (ko) * | 2007-12-27 | 2014-12-09 | 두산인프라코어 주식회사 | 건설장비의 전자유압 시스템 |
CN102245907B (zh) * | 2008-12-15 | 2014-05-21 | 斗山英维高株式会社 | 工程机械的液压泵流量控制装置 |
-
2011
- 2011-01-24 KR KR1020110007073A patent/KR101762951B1/ko active IP Right Grant
- 2011-12-26 US US13/981,161 patent/US9284719B2/en not_active Expired - Fee Related
- 2011-12-26 EP EP11856946.6A patent/EP2669529B1/en not_active Not-in-force
- 2011-12-26 WO PCT/KR2011/010081 patent/WO2012102488A2/ko active Application Filing
- 2011-12-26 CN CN201180065660.2A patent/CN103328830B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06213205A (ja) * | 1993-01-14 | 1994-08-02 | Hitachi Constr Mach Co Ltd | 油圧機械の油圧駆動装置 |
JP2000282515A (ja) * | 1999-03-31 | 2000-10-10 | Kobelco Contstruction Machinery Ltd | 建設機械の油圧制御回路 |
JP2006162058A (ja) * | 2004-12-07 | 2006-06-22 | Volvo Construction Equipment Ab | 油圧制御回路及び油圧制御方法 |
KR20100134332A (ko) * | 2009-06-15 | 2010-12-23 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설장비의 조작레버 잠금장치 |
Also Published As
Publication number | Publication date |
---|---|
EP2669529A2 (en) | 2013-12-04 |
US20130312403A1 (en) | 2013-11-28 |
KR20120085622A (ko) | 2012-08-01 |
EP2669529A4 (en) | 2014-12-10 |
KR101762951B1 (ko) | 2017-07-28 |
EP2669529B1 (en) | 2017-11-01 |
US9284719B2 (en) | 2016-03-15 |
CN103328830A (zh) | 2013-09-25 |
CN103328830B (zh) | 2015-11-25 |
WO2012102488A2 (ko) | 2012-08-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012102488A3 (ko) | 전자유압펌프를 포함하는 건설기계의 유압 시스템 | |
WO2012087012A3 (ko) | 전자유압펌프용 비상 제어부를 포함하는 건설기계의 유압 시스템 | |
MX2021005384A (es) | Controlador de equilibrio de flota de bombas en operaciones de fracturamiento. | |
WO2013106436A3 (en) | Method for obtaining a full range of lift speeds using a single input | |
WO2011117831A3 (en) | System, apparatus, and method for rapid pump displacement configuration | |
CA2879202C (en) | Hydraulic system for construction machine | |
WO2010093509A3 (en) | Heat pump water heater control | |
WO2012118773A3 (en) | Hydraulic control system implementing pump torque limiting | |
WO2011069494A3 (de) | Kontinuierlich fördernde infusionspumpe | |
WO2011078543A3 (ko) | 건설기계의 유압펌프 제어장치 및 제어방법 | |
EP2270617A3 (en) | Construction equipment having electric control lever | |
WO2012091814A3 (en) | Mobile robot system | |
WO2011150010A3 (en) | Hydraulic system having implement and steering flow sharing | |
WO2009084853A3 (en) | Electric oil pressure system of construction equipment | |
WO2012082357A3 (en) | Hydraulic system having dual tilt blade control | |
WO2011106193A3 (en) | Tool coupler assembly | |
EP2523064A3 (en) | Apparatus using electronically-controlled valves | |
WO2012054344A3 (en) | Hydraulic drive circuit with parallel architectured accumulator | |
MX2013015289A (es) | Sistemas hidraulicos utilizando sistemas de bombas de ciclos abierto y cerrado en combinacion. | |
WO2011073774A3 (en) | Piecewise hydraulic power transmission system | |
WO2013103954A3 (en) | Electro-hydraulic system with float function | |
WO2013003048A3 (en) | Hydraulic control system having swing energy recovery | |
AU2015261544B2 (en) | Operating method for a pump, in particular for a multiphase pump, and pump | |
IN2015DN01002A (ko) | ||
WO2009103412A8 (de) | Hydrostatisches antriebssystem |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11856946 Country of ref document: EP Kind code of ref document: A2 |
|
REEP | Request for entry into the european phase |
Ref document number: 2011856946 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011856946 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13981161 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |