BR0302020A - Sistema de direção - Google Patents

Sistema de direção

Info

Publication number
BR0302020A
BR0302020A BR0302020-7A BR0302020A BR0302020A BR 0302020 A BR0302020 A BR 0302020A BR 0302020 A BR0302020 A BR 0302020A BR 0302020 A BR0302020 A BR 0302020A
Authority
BR
Brazil
Prior art keywords
cylinder
wheels
valve
circuit
steering system
Prior art date
Application number
BR0302020-7A
Other languages
English (en)
Other versions
BR0302020B1 (pt
Inventor
Frederick W Nelson
Lawrence J Adams
Andrew Karl Wilhelm Rekow
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 BR0302020A publication Critical patent/BR0302020A/pt
Publication of BR0302020B1 publication Critical patent/BR0302020B1/pt

Links

Classifications

    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

"SISTEMA DE DIREçãO". A invenção divulga um sistema de direção, fornecendo detecção de ângulo da roda direcionada para veículos com um par de rodas direcionadas espaçadas, um cilindro de direção hidráulica bidirecional conectado operativamente às rodas direcionadas, e um circuito hidráulico conectado ao cilindro. A invenção inclui uma válvula bidirecional hidráulica, uma bomba hidráulica para suprir fluido sob pressão ao circuito e conectado hidraulicamente à válvula, o cilindro com um eixo móvel simples nele para mover em direções opostas para direcionar as rodas em uma das duas direções angulares, um motor hidráulico no circuito entre o cilindro e a válvula, um eixo de saída no motor adaptado para girar em uma das duas direções, dependendo da direção de fluxo de fluido através do motor, e um par de sensores adjacente ao eixo para determinar a direção de movimento do eixo, e, conseq³entemente, uma posição de direcionamento angular das rodas.
BRPI0302020-7A 2002-06-12 2003-06-11 sistema de direÇço. BR0302020B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/170,610 US20030230449A1 (en) 2002-06-12 2002-06-12 Steered wheel angle sensor using hydraulic flow to steering cylinder

Publications (2)

Publication Number Publication Date
BR0302020A true BR0302020A (pt) 2004-08-24
BR0302020B1 BR0302020B1 (pt) 2012-06-12

Family

ID=29583840

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0302020-7A BR0302020B1 (pt) 2002-06-12 2003-06-11 sistema de direÇço.

Country Status (11)

Country Link
US (1) US20030230449A1 (pt)
EP (1) EP1371542B1 (pt)
AR (1) AR040199A1 (pt)
AU (1) AU2003204564B2 (pt)
BR (1) BR0302020B1 (pt)
CA (1) CA2425313A1 (pt)
DE (1) DE50306157D1 (pt)
ES (1) ES2275973T3 (pt)
MX (1) MXPA03005153A (pt)
NZ (1) NZ526328A (pt)
ZA (1) ZA200304466B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7347433B2 (en) * 2004-07-29 2008-03-25 Delphi Technologies, Inc Wheel and steering sensor system
BRPI0404360A (pt) * 2004-10-07 2005-05-24 Sabo Ind & Comercio Ltda Anel sensibilizador de sensor
WO2007005533A2 (en) * 2005-06-30 2007-01-11 Globe Motors, Inc. Steering system torque sensor
CN105620547B (zh) * 2016-01-25 2018-03-16 豫北转向系统（新乡）有限公司 一种液压转向器双向油液控制机构
US10654520B2 (en) * 2016-08-31 2020-05-19 Deere & Company Methods and apparatuses for disturbance and stability detection by vehicle guidance systems
US11788828B1 (en) 2022-07-01 2023-10-17 Caterpillar Inc. Direct sensing system for a spherical joint

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457132A (en) * 1981-11-05 1984-07-03 Trw Inc. Control apparatus
US4798256A (en) * 1986-11-08 1989-01-17 Zahnradfabrik Friedrichshafen, Ag. Hydrostatic auxiliary steering device
US5489844A (en) * 1993-05-17 1996-02-06 General Electric Company Noise-cancelling quadrature magnetic position, speed and direction sensor
DE4410693C2 (de) * 1994-03-28 1996-05-23 Hydraulik Nord Gmbh Hydraulische Lenkeinrichtung mit Lastsignal
US5497082A (en) * 1995-01-25 1996-03-05 Honeywell Inc. Quadrature detector with a hall effect element and a magnetoresistive element
US5719496A (en) * 1995-06-07 1998-02-17 Durakool Incorporated Dual-element proximity sensor for sensing the direction of rotation of a ferrous target wheel
DE19616437C1 (de) * 1996-04-25 1997-08-28 Daimler Benz Ag Fahrzeuglenkung
DE29616034U1 (de) * 1996-09-14 1997-01-02 Mohrmann, Michael, Dipl.-Ing., 47625 Kevelaer Mehrstufiger, hydraulischer Zylinder mit Hubmeßsystem
US6076349A (en) * 1999-04-29 2000-06-20 Eaton Corporation Hydrostatic automotive or high speed steering system
JP2001082417A (ja) * 1999-09-16 2001-03-27 Nisshin Steel Co Ltd 流体圧シリンダの移動位置検出方法及び装置
US6522131B1 (en) * 1999-09-17 2003-02-18 Melexis Nv Multi-mode hall effect sensor for determining position and timing parameters of a gear wheel
US6269641B1 (en) * 1999-12-29 2001-08-07 Agip Oil Us L.L.C. Stroke control tool for subterranean well hydraulic actuator assembly
US6539710B2 (en) * 2001-02-09 2003-04-01 Eaton Corporation Hydrostatic steering system having improved steering sensing

Also Published As

Publication number Publication date
AU2003204564B2 (en) 2008-09-25
CA2425313A1 (en) 2003-12-12
NZ526328A (en) 2004-10-29
US20030230449A1 (en) 2003-12-18
EP1371542B1 (de) 2007-01-03
BR0302020B1 (pt) 2012-06-12
MXPA03005153A (es) 2003-12-18
ZA200304466B (en) 2005-02-23
AR040199A1 (es) 2005-03-16
EP1371542A1 (de) 2003-12-17
AU2003204564A1 (en) 2004-01-15
ES2275973T3 (es) 2007-06-16
DE50306157D1 (de) 2007-02-15

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/06/2003, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 15A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)