BRPI0407859A - método para gerar um sinal de comando de válvula - Google Patents

método para gerar um sinal de comando de válvula

Info

Publication number
BRPI0407859A
BRPI0407859A BRPI0407859-4A BRPI0407859A BRPI0407859A BR PI0407859 A BRPI0407859 A BR PI0407859A BR PI0407859 A BRPI0407859 A BR PI0407859A BR PI0407859 A BRPI0407859 A BR PI0407859A
Authority
BR
Brazil
Prior art keywords
lever
valve
command signal
control unit
generating
Prior art date
Application number
BRPI0407859-4A
Other languages
English (en)
Inventor
William Guy Alexander
David James Boege
Original Assignee
Deere & Co
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 Deere & Co filed Critical Deere & Co
Publication of BRPI0407859A publication Critical patent/BRPI0407859A/pt

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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (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

"MéTODO PARA GERAR UM SINAL DE COMANDO DE VáLVULA". Uma função hidráulica (20) pode ser estendida e retraída sob o controle de uma unidade de válvula eletro-hidráulica (22). Uma alavanca de comando móvel pelo operador (36) é móvel para as regiões de extensão, central e de retração. Um sensor (38) gera um sinal de posição de alavanca. Uma unidade de comando eletrónica (34) de alavanca recebe o sinal de posição da alavanca e gera um sinal de comando de alavanca. Uma unidade (28) eletrónica de controle de válvula fica afastada de e se comunica com a unidade de comando de alavanca (34). A unidade (28) eletrónica de controle de válvula controla a comunicação do fluido hidráulico (20) em resposta ao sinal de comando de válvula. Um método de gerar o sinal de comando de válvula inclui gerar um sinal de comando que e proporcional ao sinal de posição de alavanca quando a alavanca (36) é movida de modo relativamente lento e gerar um sinal de comando que é baseado na excursão máxima da alavanca (36) nas regiões de extensão e retração quando a alavanca (36) for movida de modo relativamente rápido. Sinais de comando são transmitidos à unidade de controle de válvula (28) depois de um período de tempo de retardo que é uma fração de um período de oscilação do movimento da alavanca.
BRPI0407859-4A 2003-03-07 2004-02-25 método para gerar um sinal de comando de válvula BRPI0407859A (pt)

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 (1)

Publication Number Publication Date
BRPI0407859A true BRPI0407859A (pt) 2006-03-01

Family

ID=32927160

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0407859-4A BRPI0407859A (pt) 2003-03-07 2004-02-25 método para gerar um sinal de comando de válvula

Country Status (14)

Country Link
US (1) US6895319B2 (pt)
EP (1) EP1604118B1 (pt)
JP (1) JP2006519965A (pt)
KR (1) KR20050106087A (pt)
AR (1) AR043408A1 (pt)
AT (1) ATE334315T1 (pt)
AU (1) AU2004217795B2 (pt)
BR (1) BRPI0407859A (pt)
CA (1) CA2518007A1 (pt)
DE (1) DE602004001678T2 (pt)
DK (1) DK1604118T3 (pt)
NO (1) NO20053317L (pt)
WO (1) WO2004079206A1 (pt)
ZA (1) ZA200504989B (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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
WO2009107586A1 (ja) 2008-02-26 2009-09-03 三菱伸銅株式会社 高強度高導電銅棒線材
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CA2518007A1 (en) 2004-09-16
US6895319B2 (en) 2005-05-17
DK1604118T3 (da) 2006-11-27
AU2004217795B2 (en) 2009-05-07
NO20053317D0 (no) 2005-07-06
AU2004217795A1 (en) 2004-09-16
EP1604118A1 (en) 2005-12-14
NO20053317L (no) 2005-09-30
DE602004001678T2 (de) 2006-11-30
KR20050106087A (ko) 2005-11-08
ATE334315T1 (de) 2006-08-15
WO2004079206A1 (en) 2004-09-16
JP2006519965A (ja) 2006-08-31
AR043408A1 (es) 2005-07-27
US20040176894A1 (en) 2004-09-09
EP1604118B1 (en) 2006-07-26
DE602004001678D1 (de) 2006-09-07
ZA200504989B (en) 2006-09-27

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 4A, 5A, 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012.