EP4030003A4 - Hydraulic excavator control system and method - Google Patents
Hydraulic excavator control system and method Download PDFInfo
- 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
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)
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)
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)
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)
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 |
-
2019
- 2019-09-11 WO PCT/CN2019/105276 patent/WO2021046736A1/en unknown
- 2019-09-11 EP EP19944808.5A patent/EP4030003A4/en active Pending
- 2019-09-11 AU AU2019465349A patent/AU2019465349B2/en active Active
- 2019-09-11 CA CA3150007A patent/CA3150007A1/en active Pending
Patent Citations (2)
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)
Title |
---|
See also references of WO2021046736A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2019465349B2 (en) | 2023-07-27 |
AU2019465349A1 (en) | 2022-03-24 |
CA3150007A1 (en) | 2021-03-18 |
EP4030003A1 (en) | 2022-07-20 |
WO2021046736A1 (en) | 2021-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220325 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20220908 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E02F 9/22 20060101AFI20220902BHEP |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |