JPH0549773B2 - - Google Patents
Info
- Publication number
- JPH0549773B2 JPH0549773B2 JP61000648A JP64886A JPH0549773B2 JP H0549773 B2 JPH0549773 B2 JP H0549773B2 JP 61000648 A JP61000648 A JP 61000648A JP 64886 A JP64886 A JP 64886A JP H0549773 B2 JPH0549773 B2 JP H0549773B2
- Authority
- JP
- Japan
- Prior art keywords
- maximum
- engine
- auto
- control device
- rotation speed
- 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 - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 7
- 238000009412 basement excavation Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- 239000000446 fuel Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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
- E02F9/2278—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
- E02F9/2221—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
- E02F9/2296—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)
- Motor Power Transmission Devices (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
- Operation Control Of Excavators (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61000648A JPS62160331A (ja) | 1986-01-08 | 1986-01-08 | エンジン・油圧ポンプの制御装置 |
KR1019860007274A KR910009257B1 (ko) | 1985-09-07 | 1986-08-30 | 유압건설기계의 제어시스템 |
DE8686112330T DE3661745D1 (en) | 1985-09-07 | 1986-09-05 | Control system for hydraulically-operated construction machinery |
EP86112330A EP0214633B1 (en) | 1985-09-07 | 1986-09-05 | Control system for hydraulically-operated construction machinery |
US06/904,118 US4697418A (en) | 1985-09-07 | 1986-09-05 | Control system for hydraulically-operated construction machinery |
CN86106816A CN1011802B (zh) | 1985-09-07 | 1986-09-06 | 液压建筑机械的控制系统 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61000648A JPS62160331A (ja) | 1986-01-08 | 1986-01-08 | エンジン・油圧ポンプの制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62160331A JPS62160331A (ja) | 1987-07-16 |
JPH0549773B2 true JPH0549773B2 (US07816562-20101019-C00012.png) | 1993-07-27 |
Family
ID=11479525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61000648A Granted JPS62160331A (ja) | 1985-09-07 | 1986-01-08 | エンジン・油圧ポンプの制御装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62160331A (US07816562-20101019-C00012.png) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2772537B2 (ja) * | 1989-03-10 | 1998-07-02 | 日立建機株式会社 | 建設機械 |
WO1991013218A1 (en) * | 1990-02-20 | 1991-09-05 | Komatsu Ltd. | Hydraulic driving device of construction machinery |
JPH0658209U (ja) * | 1993-01-22 | 1994-08-12 | 日本車輌製造株式会社 | 建設機械の油圧回路 |
JP2707413B2 (ja) * | 1994-06-02 | 1998-01-28 | 新キャタピラー三菱株式会社 | 可変容量型油圧ポンプが装備された油圧式建設機械 |
JP4188902B2 (ja) | 2004-11-22 | 2008-12-03 | 日立建機株式会社 | 油圧建設機械の制御装置 |
JP4024820B2 (ja) * | 2006-08-01 | 2007-12-19 | 住友建機製造株式会社 | 建設機械の制御装置 |
JP6124302B2 (ja) * | 2013-11-05 | 2017-05-10 | キャタピラー エス エー アール エル | 作業機械 |
-
1986
- 1986-01-08 JP JP61000648A patent/JPS62160331A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS62160331A (ja) | 1987-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |