EP4030003A4 - Hydraulic excavator control system and method - Google Patents

Hydraulic excavator control system and method Download PDF

Info

Publication number
EP4030003A4
EP4030003A4 EP19944808.5A EP19944808A EP4030003A4 EP 4030003 A4 EP4030003 A4 EP 4030003A4 EP 19944808 A EP19944808 A EP 19944808A EP 4030003 A4 EP4030003 A4 EP 4030003A4
Authority
EP
European Patent Office
Prior art keywords
control system
hydraulic excavator
excavator control
hydraulic
excavator
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.)
Pending
Application number
EP19944808.5A
Other languages
German (de)
French (fr)
Other versions
EP4030003A1 (en
Inventor
Zhike SONG
Jiawen GENG
Dongdong NIU
Lixiang LIU
Lu Wang
Xutong WANG
Zecheng XING
Ji SONG
Hongmin WEI
Qing Wang
Qingrong BIAN
Xiangwei LIN
Chuanwei LV
Ding Wang
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.)
Xuzhou XCMG Excavator Machinery Co Ltd
Original Assignee
Xuzhou XCMG Excavator 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
Application filed by Xuzhou XCMG Excavator Machinery Co Ltd filed Critical Xuzhou XCMG Excavator Machinery Co Ltd
Publication of EP4030003A1 publication Critical patent/EP4030003A1/en
Publication of EP4030003A4 publication Critical patent/EP4030003A4/en
Pending 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
    • E02F9/2246—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
    • E02F9/2221—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
    • E02F9/2278—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
    • E02F9/2285—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
    • E02F9/2296—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)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
EP19944808.5A 2019-09-11 2019-09-11 Hydraulic excavator control system and method Pending EP4030003A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/105276 WO2021046736A1 (en) 2019-09-11 2019-09-11 Hydraulic excavator control system and method

Publications (2)

Publication Number Publication Date
EP4030003A1 EP4030003A1 (en) 2022-07-20
EP4030003A4 true EP4030003A4 (en) 2022-10-12

Family

ID=74866816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19944808.5A Pending EP4030003A4 (en) 2019-09-11 2019-09-11 Hydraulic excavator control system and method

Country Status (4)

Country Link
EP (1) EP4030003A4 (en)
AU (1) AU2019465349B2 (en)
CA (1) CA3150007A1 (en)
WO (1) WO2021046736A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114045897B (en) * 2021-11-17 2023-06-02 江苏徐工工程机械研究院有限公司 Load abrupt change speed-drop control method and system for positive flow system and excavator
CN114687876B (en) * 2022-04-12 2023-01-06 潍柴动力股份有限公司 Vehicle idle speed response control method and vehicle
CN115324149B (en) * 2022-06-30 2023-10-27 三一重机有限公司 Hydraulic pump control method and device and working machine
CN115110596B (en) * 2022-07-26 2023-12-19 山河智能装备股份有限公司 Hydraulic control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161522A (en) * 1997-01-20 2000-12-19 Komatsu, Ltd. Controller of engine and variable capacity pump
CN104074225B (en) * 2014-07-08 2017-02-08 湖南机电职业技术学院 Hydraulic excavator power adaptive control system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH101978A (en) * 1996-06-13 1998-01-06 Yutani Heavy Ind Ltd Battery-driven working machine
US7797934B2 (en) * 2007-04-30 2010-09-21 Caterpillar Inc Anti-stall system utilizing implement pilot relief
CN104405002A (en) * 2014-10-10 2015-03-11 龙工（上海）挖掘机制造有限公司 Control device and method for improving working efficiency of hydraulic excavator
CN106869222A (en) * 2015-12-13 2017-06-20 姚秋丽 A kind of hydraulic digger operating device multiple mode power automatic control system
CN107044147B (en) * 2016-02-05 2023-02-14 贵州詹阳动力重工有限公司 Running control system and method for wheel type hydraulic excavator of electronic fuel injection engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161522A (en) * 1997-01-20 2000-12-19 Komatsu, Ltd. Controller of engine and variable capacity pump
CN104074225B (en) * 2014-07-08 2017-02-08 湖南机电职业技术学院 Hydraulic excavator power adaptive control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021046736A1 *

Also Published As

Publication number Publication date
WO2021046736A1 (en) 2021-03-18
AU2019465349B2 (en) 2023-07-27
EP4030003A1 (en) 2022-07-20
CA3150007A1 (en) 2021-03-18
AU2019465349A1 (en) 2022-03-24

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