KR890009678A - 유압조작이 가능한 변속수단을 구비한 작업차용 유압제어 회로 - Google Patents

유압조작이 가능한 변속수단을 구비한 작업차용 유압제어 회로 Download PDF

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Publication number
KR890009678A
KR890009678A KR1019870015144A KR870015144A KR890009678A KR 890009678 A KR890009678 A KR 890009678A KR 1019870015144 A KR1019870015144 A KR 1019870015144A KR 870015144 A KR870015144 A KR 870015144A KR 890009678 A KR890009678 A KR 890009678A
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KR
South Korea
Prior art keywords
hydraulic
cylinder
pressure
inclined plate
control circuit
Prior art date
Application number
KR1019870015144A
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English (en)
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KR910001545B1 (ko
Inventor
겐지 아께다
Original Assignee
미노 시게까즈
구보다 덱꼬 가부시끼 가이샤
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Publication date
Priority claimed from JP1987069543U external-priority patent/JPH065934Y2/ja
Priority claimed from JP1987070346U external-priority patent/JPH0646744Y2/ja
Application filed by 미노 시게까즈, 구보다 덱꼬 가부시끼 가이샤 filed Critical 미노 시게까즈
Publication of KR890009678A publication Critical patent/KR890009678A/ko
Application granted granted Critical
Publication of KR910001545B1 publication Critical patent/KR910001545B1/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/22—Brakes applied by springs or weights and released hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/182—Conjoint control of vehicle sub-units of different type or different function including control of braking systems including control of parking brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2300/00—Indexing codes relating to the type of vehicle
    • B60W2300/17—Construction vehicles, e.g. graders, excavators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/18—Braking system
    • B60W2710/182—Brake pressure, e.g. of fluid or between pad and disc

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Gearings (AREA)
  • Control Of Transmission Device (AREA)
  • Braking Arrangements (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

내용 없음

Description

유압조작이 가능한 변속수단을 구비한 작업차용 유압제어 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 유압제어 회로를 이용하는 휠 로더(wheel loader)의 측면도,
제2도는 본 발명에 의한 유압제어 회로의 한 실시예를 나타낸 회로도.

Claims (6)

  1. 유압 조작 가능한 변속 수단을 갖는 작업차용 유압 제어회로에 있어서, 상기 변속 수단을 조작하는 유압작동기 수단, 상기 유압작동기수단에 압력 유체를 공급하는 압력 유체공급로 상기 유체공급로에 접속되어 유압에 의해 주차 브레이크를 해체하는 네가티브형 유압 주차 브레이크 수단, 상기 압력 유체 공급로에 설치되어 적어도 상기 유압주차 브레이크 수단 내의 압력 유체를 개방하는 제1 위치와, 압력 유체를 상기 유압주차 브레이크 수단에 공급하는 제2 위치를 갖고 있는 제어밸브수단으로 구성되어 있고, 상기 제어밸브 수단이 상기 제1위치에 있을때 유압 공급로의 압력 유체를 개방하는 유압 조작가능한 변속수단을 갖는 작업차용 유압제어회로.
  2. 제1항에 있어서, 유압자동기수단이 상기 변속수단의 주변속조작을 제어하기 위한 제1 실린더를 포함하는 유압제어회로.
  3. 제2항에 있어서, 상기 유압작동기수단이 상기 변속수단의 부변속조작을 제어하기위한 제2실린더를 더 포함하고, 상기 제2실린더는 상기 변속수단을 저속상태로하는 제1종단위치와 상기 변속수단을 고속상태로 하는 제2종단위치로 변위가능하고, 상기 제어밸브수단이 상기 제2 실린더(19A)를 제1종단위치와 제2종단위치로 선택적으로 설정하기 위하여 상기 유압 공급로(20)로 부터 상기 유압 작동기로의 압력 유체의 공급을 제어하는 기능을 더 가지는 유압제어회로.
  4. 제3항에 있어서, 상기 제어 밸브수단이 3위치 밸브로 형성되어, 상기 제 2위치에서 상기 제2실린더를 제1종단위치로 설정하고, 제3위치에서 상기 제2 실린더를 제2종단위치로 설정하는 유압제어회로.
  5. 제1항에 있어서, 상기 변속수단이 경사판식 플런저 펌프(swasy plate type axial plnger pump)와 경사판식 플런저 모터를 가지며, 상기 제1 실린더는 상기 경사판식 플런저 펌프의 경사판 각도를 변경시키고, 상기 제2실린더는 상기 경사판식 플런저모터의 경사판 각도를 변경시키는 유압제어회로.
  6. 경사판식 플런저펌프 및 경사판식 플런저 모터를 갖는 유압변속수단, 펌프, 상기 경사판식 플런저 펌프의 경사판 각도를 변경시키기 위한 제1 유압 실린더, 상기 경사판식 플런저모터의 경사판각도를 변경시켜 상기 변속수단을 저속상태로 하는 제1 종단 위치와, 상기 변속수단을 고속상태로 하는 제2 종단위치로 변위가능한 제2유압실린더, 상기 펌프로부터 압력오일을 상기 제1 유압실린더와 제2 유압실린더로 공급하는 유압공급로, 상기 유압공급로에 접속되어 유압에의해 주차 브레이크를 해체하는 네가티브형 유압주차 브레이크수단, 상기 유압 공급로에 설치된 상기 제1 유압실린더용 제어밸브, 제 1 위치에서 상기 유압 주차 브레이크 수단내의 유압을 개방하는 동시에 압력오일 공급로의 유압을 개방하고, 제2 위치에서 유압을 상기 유압주차 브레이크 수단으로 공급하는 동시에 상기 제2 실린더를 제 1종단위치로 설정하고, 제3 위치에서 유압을 상기 유압 주차 브레이크 수단으로 공급하는 동시에 제 2 실린더를 제2 종단위치에 설정하도록, 상기 유압공급로에 설치된 3위치 유압 제어 밸브로 구성된 작업차용 유압제어회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임
KR1019870015144A 1987-05-09 1987-12-26 유압조작이 가능한 변속 수단을 구비한 작업차용 유압 제어 회로 KR910001545B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1987069543U JPH065934Y2 (ja) 1987-05-09 1987-05-09 作業車の駐車ブレ−キ操作部
JP62-69543 1987-05-09
JP?62-69543 1987-05-09
JP62-70346 1987-05-11
JP1987070346U JPH0646744Y2 (ja) 1987-05-11 1987-05-11 作業車の走行操作装置
JP?62-70346 1987-05-11

Publications (2)

Publication Number Publication Date
KR890009678A true KR890009678A (ko) 1989-08-03
KR910001545B1 KR910001545B1 (ko) 1991-03-15

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KR1019870015144A KR910001545B1 (ko) 1987-05-09 1987-12-26 유압조작이 가능한 변속 수단을 구비한 작업차용 유압 제어 회로

Country Status (6)

Country Link
US (1) US4858435A (ko)
KR (1) KR910001545B1 (ko)
CA (1) CA1323825C (ko)
DE (1) DE3800542C2 (ko)
FR (1) FR2614850B1 (ko)
GB (1) GB2204652B (ko)

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Also Published As

Publication number Publication date
US4858435A (en) 1989-08-22
GB2204652B (en) 1991-05-15
FR2614850B1 (fr) 1994-01-21
GB8728842D0 (en) 1988-01-27
GB2204652A (en) 1988-11-16
CA1323825C (en) 1993-11-02
KR910001545B1 (ko) 1991-03-15
DE3800542C2 (de) 1997-07-03
FR2614850A1 (fr) 1988-11-10
DE3800542A1 (de) 1988-12-01

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