JP6752183B2 - 油圧作業機械 - Google Patents

油圧作業機械 Download PDF

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Publication number
JP6752183B2
JP6752183B2 JP2017172515A JP2017172515A JP6752183B2 JP 6752183 B2 JP6752183 B2 JP 6752183B2 JP 2017172515 A JP2017172515 A JP 2017172515A JP 2017172515 A JP2017172515 A JP 2017172515A JP 6752183 B2 JP6752183 B2 JP 6752183B2
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JP
Japan
Prior art keywords
traveling
hydraulic
pump
pressure
value
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.)
Active
Application number
JP2017172515A
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English (en)
Japanese (ja)
Other versions
JP2019049102A5 (enExample
JP2019049102A (ja
Inventor
宇田川　勉
勉 宇田川
櫻井　茂行
茂行 櫻井
幸仁 鈴木
幸仁 鈴木
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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
Priority to JP2017172515A priority Critical patent/JP6752183B2/ja
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to EP18854388.8A priority patent/EP3581718B1/en
Priority to KR1020197025933A priority patent/KR102325861B1/ko
Priority to CN201880015670.7A priority patent/CN110382791B/zh
Priority to PCT/JP2018/029869 priority patent/WO2019049603A1/ja
Priority to US16/493,052 priority patent/US11274418B2/en
Publication of JP2019049102A publication Critical patent/JP2019049102A/ja
Publication of JP2019049102A5 publication Critical patent/JP2019049102A5/ja
Application granted granted Critical
Publication of JP6752183B2 publication Critical patent/JP6752183B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/001—Steering non-deflectable wheels; Steering endless tracks or the like control systems
    • B62D11/005—Hydraulic control systems
    • 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
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • 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
    • E02F9/2004—Control mechanisms, e.g. control levers
    • 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
    • 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
    • E02F9/2253—Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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
    • E02F9/2278—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action ; Circuits therefor with two or more servomotors using two or more 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
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/005—Fault detection or monitoring
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/001—Servomotor systems with fluidic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/423—Motor capacity control by fluid pressure control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/001—Steering non-deflectable wheels; Steering endless tracks or the like control systems
    • B62D11/003—Electric or electronic control systems
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H2059/6838—Sensing gearing status of hydrostatic transmissions
    • F16H2059/6861—Sensing gearing status of hydrostatic transmissions the pressures, e.g. high, low or differential pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • F16H2061/1212—Plausibility checks; Counting means for repeated failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • F16H2061/1216—Display or indication of detected failures

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Analytical Chemistry (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP2017172515A 2017-09-07 2017-09-07 油圧作業機械 Active JP6752183B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2017172515A JP6752183B2 (ja) 2017-09-07 2017-09-07 油圧作業機械
KR1020197025933A KR102325861B1 (ko) 2017-09-07 2018-08-09 유압 작업 기계
CN201880015670.7A CN110382791B (zh) 2017-09-07 2018-08-09 液压工作机械
PCT/JP2018/029869 WO2019049603A1 (ja) 2017-09-07 2018-08-09 油圧作業機械
EP18854388.8A EP3581718B1 (en) 2017-09-07 2018-08-09 Hydraulic working machine
US16/493,052 US11274418B2 (en) 2017-09-07 2018-08-09 Hydraulic work machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017172515A JP6752183B2 (ja) 2017-09-07 2017-09-07 油圧作業機械

Publications (3)

Publication Number Publication Date
JP2019049102A JP2019049102A (ja) 2019-03-28
JP2019049102A5 JP2019049102A5 (enExample) 2019-09-26
JP6752183B2 true JP6752183B2 (ja) 2020-09-09

Family

ID=65633904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017172515A Active JP6752183B2 (ja) 2017-09-07 2017-09-07 油圧作業機械

Country Status (6)

Country Link
US (1) US11274418B2 (enExample)
EP (1) EP3581718B1 (enExample)
JP (1) JP6752183B2 (enExample)
KR (1) KR102325861B1 (enExample)
CN (1) CN110382791B (enExample)
WO (1) WO2019049603A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10801617B2 (en) * 2018-01-05 2020-10-13 Cnh Industrial America Llc Propel system with active pump displacement control for balancing propel pump pressures in agricultural vehicles
JP7441718B2 (ja) * 2020-05-07 2024-03-01 国立大学法人広島大学 故障予測システム及び故障予測方法
US12168859B2 (en) * 2020-08-15 2024-12-17 Kubota Corporation Working machine
JP7478113B2 (ja) * 2020-08-15 2024-05-02 株式会社クボタ 作業機
US12352011B2 (en) * 2020-08-15 2025-07-08 Kubota Corporation Working machine
CN114801779A (zh) * 2022-05-06 2022-07-29 上海三一重机股份有限公司 行走纠偏方法、系统及履带式作业机械
EP4749036A1 (en) 2023-12-06 2026-05-27 Hitachi Construction Machinery Co., Ltd. Diagnostic device, work machine, and diagnostic system
US12687460B2 (en) 2024-01-26 2026-07-21 Pratt & Whitney Canada Corp. System and method for detecting a mechanical transmission failure
WO2026110490A1 (ja) * 2024-11-22 2026-05-28 川崎重工業株式会社 油圧システムおよび異常診断方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH086837Y2 (ja) * 1989-10-31 1996-02-28 油谷重工株式会社 走行速度の制限回路
JP3133523B2 (ja) * 1992-11-24 2001-02-13 株式会社小松製作所 ４輪走行装置の制御装置
JP3314886B2 (ja) * 1992-11-24 2002-08-19 株式会社小松製作所 ４輪走行装置の油圧駆動系異常検出装置
JPH0932041A (ja) * 1995-07-24 1997-02-04 Yutani Heavy Ind Ltd 作業車両の制御装置
EP1881241B1 (en) * 2001-01-19 2009-09-30 Hitachi Construction Machinery Co., Ltd. Failure detection device for hydraulic motor and hydraulic drive vehicle
JP2003148419A (ja) * 2001-11-08 2003-05-21 Hitachi Constr Mach Co Ltd 走行モータの駆動装置
JP2004074331A (ja) * 2002-08-13 2004-03-11 Shin Caterpillar Mitsubishi Ltd ブレーカ用作動油供給制御システム及び供給制御方法
KR100748465B1 (ko) * 2003-11-14 2007-08-10 가부시키가이샤 고마쓰 세이사쿠쇼 건설 기계의 유압 제어 장치
JP2005344818A (ja) * 2004-06-02 2005-12-15 Hitachi Constr Mach Co Ltd 建設機械の油圧装置
JP2006084315A (ja) * 2004-09-16 2006-03-30 Mitsubishi Agricult Mach Co Ltd 回転体の回転数検出装置及び回転制御装置
KR101276982B1 (ko) * 2006-04-19 2013-06-19 두산인프라코어 주식회사 굴삭기의 주행복합동작 제어용 유압시스템
JP2010148435A (ja) * 2008-12-25 2010-07-08 Iseki & Co Ltd コンバイン
EP2413124B1 (en) 2009-03-24 2018-07-18 Hitachi Construction Machinery Co., Ltd Device for detecting abnormality in construction machine
JP2010254203A (ja) * 2009-04-28 2010-11-11 Hitachi Ltd 動力装置
DE102010009704A1 (de) * 2010-03-01 2011-09-01 Robert Bosch Gmbh Hydraulischer Fahrantrieb und Verfahren zum Steuern eines derartigen Fahrantriebs
US8321114B2 (en) 2010-05-20 2012-11-27 Komatsu Ltd. Work vehicle and work vehicle control method
EP2662576B1 (en) * 2011-01-06 2021-06-02 Hitachi Construction Machinery Tierra Co., Ltd. Hydraulic drive of work machine equipped with crawler-type traveling device
JP5499334B2 (ja) 2011-06-21 2014-05-21 日立建機株式会社 液圧回転機の摩耗検出装置
US10407073B2 (en) * 2011-12-21 2019-09-10 Continental Automotive Systems, Inc. Electro-hydraulic traction support
JP5974684B2 (ja) * 2012-07-03 2016-08-23 コベルコ建機株式会社 建設機械の油圧制御装置
KR101825752B1 (ko) * 2012-08-17 2018-02-06 현대건설기계 주식회사 휠 굴삭기의 주행 제어 시스템 및 방법
JP2015135031A (ja) * 2014-01-20 2015-07-27 コベルコ建機株式会社 走行式油圧作業機械
CN105986592B (zh) * 2015-02-11 2021-07-13 住友建机株式会社 挖土机及挖土机的管理装置
JP6510396B2 (ja) * 2015-12-28 2019-05-08 日立建機株式会社 作業機械

Also Published As

Publication number Publication date
KR102325861B1 (ko) 2021-11-12
US20200018043A1 (en) 2020-01-16
EP3581718A1 (en) 2019-12-18
CN110382791A (zh) 2019-10-25
EP3581718B1 (en) 2021-12-22
US11274418B2 (en) 2022-03-15
KR20190113916A (ko) 2019-10-08
WO2019049603A1 (ja) 2019-03-14
JP2019049102A (ja) 2019-03-28
EP3581718A4 (en) 2020-12-16
CN110382791B (zh) 2021-09-17

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