CN101438064A - 作业机械中的液压控制*** - Google Patents
作业机械中的液压控制*** Download PDFInfo
- Publication number
- CN101438064A CN101438064A CNA2007800164692A CN200780016469A CN101438064A CN 101438064 A CN101438064 A CN 101438064A CN A2007800164692 A CNA2007800164692 A CN A2007800164692A CN 200780016469 A CN200780016469 A CN 200780016469A CN 101438064 A CN101438064 A CN 101438064A
- Authority
- CN
- China
- Prior art keywords
- oil
- accumulator
- valve
- grease chamber
- pump
- 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.)
- Granted
Links
Images
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
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- 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
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
-
- 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
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
- E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves 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
- E02F9/2232—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
- E02F9/2278—Hydraulic circuits
- E02F9/2285—Pilot-operated 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
- E02F9/20—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
-
- 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
- F15B21/14—Energy-recuperation means
-
- 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
- F15B2201/00—Accumulators
- F15B2201/50—Monitoring, detection and testing means for accumulators
- F15B2201/51—Pressure detection
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
-
- 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
- F15B2211/265—Control of multiple pressure sources
- F15B2211/2654—Control of multiple pressure sources one or more pressure sources having priority
-
- 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
- F15B2211/76—Control of force or torque of the output member
- F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
-
- 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
- F15B2211/88—Control measures for saving energy
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)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006188817A JP2008014468A (ja) | 2006-07-10 | 2006-07-10 | 作業機械における油圧制御システム |
JP188817/2006 | 2006-07-10 | ||
PCT/JP2007/057403 WO2008007484A1 (fr) | 2006-07-10 | 2007-04-02 | Système de commande hydraulique pour machine de chantier |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101438064A true CN101438064A (zh) | 2009-05-20 |
CN101438064B CN101438064B (zh) | 2012-05-02 |
Family
ID=38923053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007800164692A Expired - Fee Related CN101438064B (zh) | 2006-07-10 | 2007-04-02 | 作业机械中的液压控制*** |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100000209A1 (zh) |
EP (1) | EP2039945A4 (zh) |
JP (1) | JP2008014468A (zh) |
CN (1) | CN101438064B (zh) |
WO (1) | WO2008007484A1 (zh) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102741564A (zh) * | 2010-06-30 | 2012-10-17 | 卡特彼勒Sarl公司 | 能量再生用控制电路以及作业机械 |
WO2013174235A1 (zh) * | 2012-05-22 | 2013-11-28 | 山河智能装备股份有限公司 | 工作装置能量回收*** |
CN104903595A (zh) * | 2013-01-08 | 2015-09-09 | 日立建机株式会社 | 工作机械的液压*** |
CN105026773A (zh) * | 2013-01-28 | 2015-11-04 | 卡特彼勒Sarl | 发动机辅助装置及作业机械 |
CN105065351A (zh) * | 2015-07-15 | 2015-11-18 | 沙洲职业工学院 | 一种液压控制*** |
CN105765133A (zh) * | 2013-11-06 | 2016-07-13 | 卡特彼勒Sarl | 液压回路及作业机器 |
CN106030123A (zh) * | 2014-05-16 | 2016-10-12 | 日立建机株式会社 | 作业机械的液压油能量再生装置 |
WO2021114669A1 (zh) * | 2019-12-13 | 2021-06-17 | 山河智能装备股份有限公司 | 一种动臂液压*** |
CN115279977A (zh) * | 2020-03-16 | 2022-11-01 | 株式会社小松制作所 | 作业机械的液压***、作业机械以及液压***的控制方法 |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2113672B1 (en) * | 2008-04-29 | 2010-12-22 | Parker Hannifin AB | Arrangement for operating a hydraulic device |
JP5246759B2 (ja) * | 2008-09-04 | 2013-07-24 | キャタピラー エス エー アール エル | 作業機械における油圧制御システム |
JP5354650B2 (ja) * | 2008-10-22 | 2013-11-27 | キャタピラー エス エー アール エル | 作業機械における油圧制御システム |
CN102312451B (zh) * | 2010-06-30 | 2014-02-19 | 北汽福田汽车股份有限公司 | 挖掘机合流控制***及其挖掘机 |
WO2012105345A1 (ja) * | 2011-02-03 | 2012-08-09 | 日立建機株式会社 | 作業機械の動力回生装置 |
CN102296663B (zh) * | 2011-05-21 | 2013-03-13 | 山河智能装备股份有限公司 | 一种势能回收的液压*** |
JP5653844B2 (ja) * | 2011-06-07 | 2015-01-14 | 住友建機株式会社 | ショベル |
US8966892B2 (en) | 2011-08-31 | 2015-03-03 | Caterpillar Inc. | Meterless hydraulic system having restricted primary makeup |
US8863509B2 (en) | 2011-08-31 | 2014-10-21 | Caterpillar Inc. | Meterless hydraulic system having load-holding bypass |
US8944103B2 (en) | 2011-08-31 | 2015-02-03 | Caterpillar Inc. | Meterless hydraulic system having displacement control valve |
JP5356477B2 (ja) * | 2011-09-06 | 2013-12-04 | 住友建機株式会社 | 建設機械 |
US9051714B2 (en) | 2011-09-30 | 2015-06-09 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US9057389B2 (en) | 2011-09-30 | 2015-06-16 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US9151018B2 (en) | 2011-09-30 | 2015-10-06 | Caterpillar Inc. | Closed-loop hydraulic system having energy recovery |
US8966891B2 (en) | 2011-09-30 | 2015-03-03 | Caterpillar Inc. | Meterless hydraulic system having pump protection |
JP5873684B2 (ja) * | 2011-10-20 | 2016-03-01 | 日立建機株式会社 | 作業車両の油圧駆動装置 |
US8978374B2 (en) | 2011-10-21 | 2015-03-17 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8919114B2 (en) | 2011-10-21 | 2014-12-30 | Caterpillar Inc. | Closed-loop hydraulic system having priority-based sharing |
US8893490B2 (en) | 2011-10-21 | 2014-11-25 | Caterpillar Inc. | Hydraulic system |
US8973358B2 (en) | 2011-10-21 | 2015-03-10 | Caterpillar Inc. | Closed-loop hydraulic system having force modulation |
US8943819B2 (en) | 2011-10-21 | 2015-02-03 | Caterpillar Inc. | Hydraulic system |
US9080310B2 (en) | 2011-10-21 | 2015-07-14 | Caterpillar Inc. | Closed-loop hydraulic system having regeneration configuration |
US8978373B2 (en) | 2011-10-21 | 2015-03-17 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US9068578B2 (en) | 2011-10-21 | 2015-06-30 | Caterpillar Inc. | Hydraulic system having flow combining capabilities |
US8984873B2 (en) | 2011-10-21 | 2015-03-24 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8910474B2 (en) | 2011-10-21 | 2014-12-16 | Caterpillar Inc. | Hydraulic system |
US9279236B2 (en) | 2012-06-04 | 2016-03-08 | Caterpillar Inc. | Electro-hydraulic system for recovering and reusing potential energy |
US9290912B2 (en) | 2012-10-31 | 2016-03-22 | Caterpillar Inc. | Energy recovery system having integrated boom/swing circuits |
US9290911B2 (en) | 2013-02-19 | 2016-03-22 | Caterpillar Inc. | Energy recovery system for hydraulic machine |
JP2015090192A (ja) * | 2013-11-06 | 2015-05-11 | キャタピラー エス エー アール エル | 流体圧回路および作業機械 |
JP6112559B2 (ja) * | 2013-11-06 | 2017-04-12 | キャタピラー エス エー アール エル | 流体圧回路および作業機械 |
CH708876B1 (de) * | 2013-11-19 | 2016-03-31 | Liebherr Machines Bulle Sa | Hydraulikventilanordnung mit Steuerungs-/Regelungsfunktion und zugehöriges Rücklaufventil. |
JP6285787B2 (ja) * | 2014-04-14 | 2018-02-28 | 日立建機株式会社 | 油圧駆動装置 |
JP5975073B2 (ja) * | 2014-07-30 | 2016-08-23 | コベルコ建機株式会社 | 建設機械 |
JP6453711B2 (ja) * | 2015-06-02 | 2019-01-16 | 日立建機株式会社 | 作業機械の圧油エネルギ再生装置 |
EP3495569B1 (en) * | 2017-09-29 | 2023-08-02 | Hitachi Construction Machinery Tierra Co., Ltd. | Hydraulic drive device of work machine |
JP7240161B2 (ja) * | 2018-12-13 | 2023-03-15 | 川崎重工業株式会社 | 油圧駆動システム |
CN112283181A (zh) * | 2020-09-25 | 2021-01-29 | 哈尔滨工业大学 | 足式机器人用高功率密度辅助增力液压缸 |
CN114458647B (zh) * | 2022-02-21 | 2024-06-04 | 合肥协力仪表控制技术股份有限公司 | 一种非道路移动机器用液压源与液压能量回收再利用*** |
CN114940467B (zh) * | 2022-05-24 | 2023-11-03 | 华侨大学 | 电液复合叉车及其驱动***、方法、装置、存储介质 |
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BE1003135A3 (nl) * | 1990-01-16 | 1991-12-03 | P V B A W Everaert | Machine voor het verbrijzelen van betonoppervlakken. |
JP2582310B2 (ja) | 1990-09-10 | 1997-02-19 | 株式会社小松製作所 | 作業機の位置エネルギー回収・活用装置 |
JP2564678Y2 (ja) * | 1992-01-31 | 1998-03-09 | 株式会社小松製作所 | 回収エネルギーのポンプ馬力補充装置 |
JP3497947B2 (ja) * | 1996-06-11 | 2004-02-16 | 日立建機株式会社 | 油圧駆動装置 |
JP3362258B2 (ja) * | 1996-09-25 | 2003-01-07 | 株式会社小松製作所 | 圧油回収再利用システム |
US6378301B2 (en) * | 1996-09-25 | 2002-04-30 | Komatsu Ltd. | Pressurized fluid recovery/reutilization system |
WO2000000748A1 (en) * | 1998-06-27 | 2000-01-06 | Lars Bruun | Mobile working machine |
US6434864B1 (en) * | 2000-09-22 | 2002-08-20 | Grigoriy Epshteyn | Frontal loader |
JP4120323B2 (ja) * | 2002-09-04 | 2008-07-16 | トヨタ自動車株式会社 | 内燃機関の出力制御装置 |
US6854268B2 (en) * | 2002-12-06 | 2005-02-15 | Caterpillar Inc | Hydraulic control system with energy recovery |
US7124576B2 (en) * | 2004-10-11 | 2006-10-24 | Deere & Company | Hydraulic energy intensifier |
-
2006
- 2006-07-10 JP JP2006188817A patent/JP2008014468A/ja active Pending
-
2007
- 2007-04-02 US US12/308,665 patent/US20100000209A1/en not_active Abandoned
- 2007-04-02 EP EP07740839A patent/EP2039945A4/en not_active Withdrawn
- 2007-04-02 WO PCT/JP2007/057403 patent/WO2008007484A1/ja active Application Filing
- 2007-04-02 CN CN2007800164692A patent/CN101438064B/zh not_active Expired - Fee Related
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9303632B2 (en) | 2010-06-30 | 2016-04-05 | Caterpillar Sarl | Energy recovery control circuit and work machine |
CN102741564B (zh) * | 2010-06-30 | 2015-06-10 | 卡特彼勒Sarl公司 | 能量再生用控制回路以及作业机械 |
CN102741564A (zh) * | 2010-06-30 | 2012-10-17 | 卡特彼勒Sarl公司 | 能量再生用控制电路以及作业机械 |
WO2013174235A1 (zh) * | 2012-05-22 | 2013-11-28 | 山河智能装备股份有限公司 | 工作装置能量回收*** |
CN104903595A (zh) * | 2013-01-08 | 2015-09-09 | 日立建机株式会社 | 工作机械的液压*** |
CN104903595B (zh) * | 2013-01-08 | 2017-03-08 | 日立建机株式会社 | 工作机械的液压*** |
CN105026773A (zh) * | 2013-01-28 | 2015-11-04 | 卡特彼勒Sarl | 发动机辅助装置及作业机械 |
US9593467B2 (en) | 2013-01-28 | 2017-03-14 | Caterpillar Sarl | Engine-assist device and industrial machine |
CN105765133A (zh) * | 2013-11-06 | 2016-07-13 | 卡特彼勒Sarl | 液压回路及作业机器 |
CN106030123A (zh) * | 2014-05-16 | 2016-10-12 | 日立建机株式会社 | 作业机械的液压油能量再生装置 |
CN106030123B (zh) * | 2014-05-16 | 2018-03-13 | 日立建机株式会社 | 作业机械的液压油能量再生装置 |
CN105065351A (zh) * | 2015-07-15 | 2015-11-18 | 沙洲职业工学院 | 一种液压控制*** |
WO2021114669A1 (zh) * | 2019-12-13 | 2021-06-17 | 山河智能装备股份有限公司 | 一种动臂液压*** |
CN115279977A (zh) * | 2020-03-16 | 2022-11-01 | 株式会社小松制作所 | 作业机械的液压***、作业机械以及液压***的控制方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2039945A1 (en) | 2009-03-25 |
CN101438064B (zh) | 2012-05-02 |
EP2039945A4 (en) | 2011-05-04 |
WO2008007484A1 (fr) | 2008-01-17 |
US20100000209A1 (en) | 2010-01-07 |
JP2008014468A (ja) | 2008-01-24 |
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