GB2394316B - Control unit for construction machine - Google Patents

Control unit for construction machine

Info

Publication number
GB2394316B
GB2394316B GB0401133A GB0401133A GB2394316B GB 2394316 B GB2394316 B GB 2394316B GB 0401133 A GB0401133 A GB 0401133A GB 0401133 A GB0401133 A GB 0401133A GB 2394316 B GB2394316 B GB 2394316B
Authority
GB
United Kingdom
Prior art keywords
control unit
construction machine
construction
machine
unit
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
GB0401133A
Other versions
GB0401133D0 (en
GB2394316A (en
Inventor
Noriyuku Sakai
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 claimed from JP29732899A external-priority patent/JP3390707B2/en
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB0401133D0 publication Critical patent/GB0401133D0/en
Publication of GB2394316A publication Critical patent/GB2394316A/en
Application granted granted Critical
Publication of GB2394316B publication Critical patent/GB2394316B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
    • 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
    • E02F9/2292—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
GB0401133A 1999-10-19 2000-08-21 Control unit for construction machine Expired - Fee Related GB2394316B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29732899A JP3390707B2 (en) 1999-10-19 1999-10-19 Control equipment for construction machinery
GB0020627A GB2355544B (en) 1999-10-19 2000-08-21 Control unit for construction machine

Publications (3)

Publication Number Publication Date
GB0401133D0 GB0401133D0 (en) 2004-02-18
GB2394316A GB2394316A (en) 2004-04-21
GB2394316B true GB2394316B (en) 2004-06-09

Family

ID=32031867

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0401137A Expired - Fee Related GB2394318B (en) 1999-10-19 2000-08-21 Control unit for construction machine
GB0401133A Expired - Fee Related GB2394316B (en) 1999-10-19 2000-08-21 Control unit for construction machine
GB0401135A Expired - Fee Related GB2394317B (en) 1999-10-19 2000-08-21 Control unit for construction machine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0401137A Expired - Fee Related GB2394318B (en) 1999-10-19 2000-08-21 Control unit for construction machine

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0401135A Expired - Fee Related GB2394317B (en) 1999-10-19 2000-08-21 Control unit for construction machine

Country Status (1)

Country Link
GB (3) GB2394318B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705211B (en) * 2012-06-29 2015-12-23 山河智能装备股份有限公司 A kind of variable pump small displacement and little pressure control loop and control method thereof
JP6603568B2 (en) * 2015-12-14 2019-11-06 川崎重工業株式会社 Hydraulic drive system
US10233951B2 (en) * 2016-10-05 2019-03-19 Caterpillar Inc. Method to detect uncommanded spool valve positioning and stop fluid flow to hydraulic actuators
CN112065787B (en) * 2020-09-27 2023-11-03 中铁工程装备集团有限公司 Hydraulic control system of cantilever development machine excavating device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838756A (en) * 1987-02-19 1989-06-13 Deere & Company Hydraulic system for an industrial machine
WO1991003651A1 (en) * 1989-08-30 1991-03-21 Kabushiki Kaisha Komatsu Seisakusho Speed change controller of running hydraulic motor
JPH08277732A (en) * 1995-04-05 1996-10-22 Hitachi Constr Mach Co Ltd Driving controller for construction equipment
JP2001123480A (en) * 1999-10-28 2001-05-08 Sumitomo Constr Mach Co Ltd Travel speed switching device for hydraulic excavator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251962B (en) * 1990-11-13 1995-05-24 Samsung Heavy Ind System for automatically controlling an operation of a heavy construction
JP3220579B2 (en) * 1993-10-05 2001-10-22 新キャタピラー三菱株式会社 Hydraulic system control method for construction machinery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838756A (en) * 1987-02-19 1989-06-13 Deere & Company Hydraulic system for an industrial machine
WO1991003651A1 (en) * 1989-08-30 1991-03-21 Kabushiki Kaisha Komatsu Seisakusho Speed change controller of running hydraulic motor
JPH08277732A (en) * 1995-04-05 1996-10-22 Hitachi Constr Mach Co Ltd Driving controller for construction equipment
JP2001123480A (en) * 1999-10-28 2001-05-08 Sumitomo Constr Mach Co Ltd Travel speed switching device for hydraulic excavator

Also Published As

Publication number Publication date
GB2394317B (en) 2004-06-09
GB0401133D0 (en) 2004-02-18
GB0401135D0 (en) 2004-02-18
GB0401137D0 (en) 2004-02-18
GB2394316A (en) 2004-04-21
GB2394318B (en) 2004-06-09
GB2394317A (en) 2004-04-21
GB2394318A (en) 2004-04-21

Similar Documents

Publication Publication Date Title
GB2355544B (en) Control unit for construction machine
GB9929995D0 (en) Brushless machine control
GB9925360D0 (en) Control apparatus
GB2356992B (en) Control scheme for distorton reduction
GB9929994D0 (en) Brushless machine control
GB2347418B (en) Pneumatic machine control unit for an I.S. machine
PL341683A1 (en) Machine operation controlling unit
GB2394318B (en) Control unit for construction machine
AU142680S (en) Control unit
AU142704S (en) Control unit
GB9915213D0 (en) Control
AU142677S (en) Control unit
AU142684S (en) Control unit
AU142683S (en) Control unit
AU142703S (en) Control unit
GB0015920D0 (en) Control arrangement
GB9921838D0 (en) Photo-vending machine
AU143048S (en) Control unit
AU141066S (en) Control unit
AU141067S (en) Control unit
AU142679S (en) Control unit
AU142701S (en) Control unit
AU142700S (en) Control unit
AU142702S (en) Control unit
AU143049S (en) Control unit

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180821