NO20053317L - Fremgangsmate for a generere et ventilstyringssignal. - Google Patents
Fremgangsmate for a generere et ventilstyringssignal.Info
- Publication number
- NO20053317L NO20053317L NO20053317A NO20053317A NO20053317L NO 20053317 L NO20053317 L NO 20053317L NO 20053317 A NO20053317 A NO 20053317A NO 20053317 A NO20053317 A NO 20053317A NO 20053317 L NO20053317 L NO 20053317L
- Authority
- NO
- Norway
- Prior art keywords
- lever
- control unit
- valve
- valve control
- control
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
- E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
-
- 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
-
- 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
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Mechanical Control Devices (AREA)
- Fluid-Pressure Circuits (AREA)
- Position Input By Displaying (AREA)
Abstract
En hydraulisk funksjon (20) kan gå ut på utstrekning og tilbaketrekning under styring fra en elektrohydraulisk ventilenhet (22). En operatørbevegelig styrespak (36) er anordnet for å beveges inn i et utstreknings-, et midt- og et tilbaketrekksområde. En sensor (38) genererer da et spakposisjonssignal. En elektronisk spakstyringsenhet (34) mottar spakposisjonssignalet og genererer ut i fra dette et ventilstyringssignal. En elektronisk ventilstyringsenhet (28) ligger i avstand fra og kommuniserer med spakstyringsenheten (34). Denne elektroniske ventilstyrings- (10) enhet (28) styrer da kommunikasjonen av hydraulisk fluid til den hydrauliske funksjon (20) som respons på ventilstyringssignalet. En fremgangsmåte for å generere dette ventil kommando- signal omfatter da generering av et styresignal som er proporsjonalt med spakposisjonssignalet når spaken (36) beveges forholdsvis langsomt, og generering av et kommandosignal som er basert på et maksimalt utsving av styrespaken (36) inn i så vel utstrekningsområdet som tilbaketrekksområdet når styrespaken (36) beveges forholdsvis raskt. Styresignaler blir overført til ventilstyringsenheten (28) etter en forsinkelsestidsperiode som utgjør en viss andel av en periode for styrespakens svingeperiode.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/383,923 US6895319B2 (en) | 2003-03-07 | 2003-03-07 | Valve command signal processing system |
PCT/EP2004/001823 WO2004079206A1 (en) | 2003-03-07 | 2004-02-25 | A method for generating a valve command signal |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20053317D0 NO20053317D0 (no) | 2005-07-06 |
NO20053317L true NO20053317L (no) | 2005-09-30 |
Family
ID=32927160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20053317A NO20053317L (no) | 2003-03-07 | 2005-07-06 | Fremgangsmate for a generere et ventilstyringssignal. |
Country Status (14)
Country | Link |
---|---|
US (1) | US6895319B2 (no) |
EP (1) | EP1604118B1 (no) |
JP (1) | JP2006519965A (no) |
KR (1) | KR20050106087A (no) |
AR (1) | AR043408A1 (no) |
AT (1) | ATE334315T1 (no) |
AU (1) | AU2004217795B2 (no) |
BR (1) | BRPI0407859A (no) |
CA (1) | CA2518007A1 (no) |
DE (1) | DE602004001678T2 (no) |
DK (1) | DK1604118T3 (no) |
NO (1) | NO20053317L (no) |
WO (1) | WO2004079206A1 (no) |
ZA (1) | ZA200504989B (no) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE526989C2 (sv) * | 2004-04-19 | 2005-11-29 | Volvo Constr Equip Holding Se | Metod för skakning av arbetsredskap |
US7866149B2 (en) * | 2007-09-05 | 2011-01-11 | Caterpillar Inc | System and method for rapidly shaking an implement of a machine |
US9512506B2 (en) | 2008-02-26 | 2016-12-06 | Mitsubishi Shindoh Co., Ltd. | High strength and high conductivity copper alloy rod or wire |
JP2013189850A (ja) * | 2013-05-08 | 2013-09-26 | Sanyo Kiki Co Ltd | フロントローダの制御システム |
CN107989111B (zh) * | 2017-11-21 | 2021-02-19 | 黎明液压有限公司 | 装载机液压系统自动控制系统 |
CN109072584B (zh) | 2018-06-19 | 2022-03-11 | 株式会社小松制作所 | 作业车辆的控制系统及作业车辆的控制方法 |
CN109653268B (zh) * | 2018-12-06 | 2021-05-14 | 广西柳工机械股份有限公司 | 装载机自动铲装收斗控制方法 |
GB2593759B (en) | 2020-04-02 | 2023-04-26 | Caterpillar Inc | Method and control unit for generating a control command to at least one actuator of an electro-hydraulic machine |
EP4124695A1 (en) * | 2021-07-26 | 2023-02-01 | Danfoss Scotland Limited | Controller and hydraulic apparatus using fluctuation signals for hydraulic actuator operations |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4923362A (en) | 1988-06-06 | 1990-05-08 | Deere & Company | Bucket leveling system with dual fluid supply |
US5189940A (en) * | 1991-09-13 | 1993-03-02 | Caterpillar Inc. | Method and apparatus for controlling an implement |
JP2869311B2 (ja) * | 1993-09-30 | 1999-03-10 | 新キャタピラー三菱株式会社 | 油圧アクチュエータ用のバルブ制御装置 |
JP3868112B2 (ja) * | 1998-05-22 | 2007-01-17 | 株式会社小松製作所 | 油圧駆動機械の制御装置 |
US6105679A (en) * | 1998-10-29 | 2000-08-22 | Case Corporation | Control system for a hitched or trailed implement |
JP2003065301A (ja) * | 2001-08-24 | 2003-03-05 | Shin Caterpillar Mitsubishi Ltd | 建設機械の油圧制御装置 |
-
2003
- 2003-03-07 US US10/383,923 patent/US6895319B2/en not_active Expired - Lifetime
-
2004
- 2004-02-25 EP EP04714279A patent/EP1604118B1/en not_active Expired - Lifetime
- 2004-02-25 AU AU2004217795A patent/AU2004217795B2/en not_active Ceased
- 2004-02-25 BR BRPI0407859-4A patent/BRPI0407859A/pt not_active IP Right Cessation
- 2004-02-25 ZA ZA200504989A patent/ZA200504989B/en unknown
- 2004-02-25 JP JP2006504461A patent/JP2006519965A/ja active Pending
- 2004-02-25 KR KR1020057016577A patent/KR20050106087A/ko not_active Application Discontinuation
- 2004-02-25 AT AT04714279T patent/ATE334315T1/de not_active IP Right Cessation
- 2004-02-25 DK DK04714279T patent/DK1604118T3/da active
- 2004-02-25 DE DE602004001678T patent/DE602004001678T2/de not_active Expired - Lifetime
- 2004-02-25 WO PCT/EP2004/001823 patent/WO2004079206A1/en active IP Right Grant
- 2004-02-25 CA CA002518007A patent/CA2518007A1/en not_active Abandoned
- 2004-02-26 AR ARP040100608A patent/AR043408A1/es active IP Right Grant
-
2005
- 2005-07-06 NO NO20053317A patent/NO20053317L/no unknown
Also Published As
Publication number | Publication date |
---|---|
DK1604118T3 (da) | 2006-11-27 |
CA2518007A1 (en) | 2004-09-16 |
AU2004217795A1 (en) | 2004-09-16 |
AU2004217795B2 (en) | 2009-05-07 |
KR20050106087A (ko) | 2005-11-08 |
NO20053317D0 (no) | 2005-07-06 |
JP2006519965A (ja) | 2006-08-31 |
DE602004001678T2 (de) | 2006-11-30 |
ATE334315T1 (de) | 2006-08-15 |
US20040176894A1 (en) | 2004-09-09 |
WO2004079206A1 (en) | 2004-09-16 |
ZA200504989B (en) | 2006-09-27 |
EP1604118A1 (en) | 2005-12-14 |
AR043408A1 (es) | 2005-07-27 |
US6895319B2 (en) | 2005-05-17 |
EP1604118B1 (en) | 2006-07-26 |
BRPI0407859A (pt) | 2006-03-01 |
DE602004001678D1 (de) | 2006-09-07 |
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