KR960003543A - 작업차의 주행변속시스템 - Google Patents

작업차의 주행변속시스템 Download PDF

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Publication number
KR960003543A
KR960003543A KR1019950019463A KR19950019463A KR960003543A KR 960003543 A KR960003543 A KR 960003543A KR 1019950019463 A KR1019950019463 A KR 1019950019463A KR 19950019463 A KR19950019463 A KR 19950019463A KR 960003543 A KR960003543 A KR 960003543A
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South Korea
Prior art keywords
shift
control valve
hydraulic
supply side
operating
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KR1019950019463A
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English (en)
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KR0175156B1 (ko
Inventor
아키히로 아사다
아키오 이나모리
가즈시게 고모리
시게오 사카모토
히로노부 구보다
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미츠이 고헤이
가부시키가이샤 구보다
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Priority claimed from JP06157696A external-priority patent/JP3111145B2/ja
Priority claimed from JP15769494A external-priority patent/JP3164734B2/ja
Application filed by 미츠이 고헤이, 가부시키가이샤 구보다 filed Critical 미츠이 고헤이
Publication of KR960003543A publication Critical patent/KR960003543A/ko
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Publication of KR0175156B1 publication Critical patent/KR0175156B1/ko

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    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B60W10/111—Stepped gearings with separate change-speed gear trains arranged in series
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/70—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F16H61/702—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements using electric or electrohydraulic control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H2059/006—Overriding automatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H2059/088—Fast forward-reverse-sequence mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • F16H2061/1216—Display or indication of detected failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1244—Keeping the current state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
    • F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/20—Timing of gear shifts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/22—Swap shifting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/44—Removing torque from current gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/52—Applying torque to new gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
    • F16H39/04—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
    • F16H39/06—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
    • F16H39/34—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type in which a rotor on one shaft co-operates with a rotor on another shaft
    • F16H39/36—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type in which a rotor on one shaft co-operates with a rotor on another shaft toothed-gear type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/22—Locking of the control input devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
    • F16H61/682—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings with interruption of drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/70—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/42—Ratio indicator devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism
    • Y10T74/19256—Automatic
    • Y10T74/1926—Speed responsive

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Transmission Device (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

엔진(1)으로부터의 동력을 주클러치(5,6), 주변속장치(10) 및 부변속장치(11
)를 통하여 주행장치(14,19)에 전달하는 작업차의 주행변속시스템으로서, 상기 주변속장치는 제1유압 클러치군(21,22,23,24)과 이들 클러치의 온·오프 조작을 실시하는 제1제어밸브군(31b,32b,33b,34b)를 가지고, 또한, 상기 부변속장치(12)는 제2유압클러치(26,27) 및 이들 클러치의 온·오프 조작을 실시하는 제2제어밸브(38,39
)를 가지고, 상기 제1유압클러치의 어느 한 유압클러치와 상기 제2유압클러치의 어느 한 유압클러치에 압유를 공급함으로써 바람직한 변속을 실시가능하게 구성되어 있다. 여기서, 상기 주행변속시스템은, (A) 상기 주변속장치용으로 변속지령을 발신하는 변속조장구(61,62); (B) 상기 변속조작구의 지령에 의거하여 상기 지령 발신전부터 압유공급측으로 조작되고 있는 상기 제1제어밸브군(31b,32b,33b,34b)의 제어밸브를 배유측으로 조작하고, 상기 지령에 대응하는 상기 제1제어밸브군의 제어밸브를 공급측으로 조작하는 제1제어수단; (C) 상기 변속조작구로부터의 지령에 의거하여, 상기 제2제어밸브(38,39)의 작동유 공급측으로 조작되고 있는 제어밸브를 작동유의 배유측으로 조작하고, 그후, 점차적으로 작동유의 공급측으로 조작하는 제2제어수단을 갖는다.

Description

작업차의 주행변속시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명이 적용되는 1예로서의 작업차의 전체 측면도,
제2도는 미션케이스내의 전도계를 나타내는 개략도,
제3도는 변속레버와 제2부변속장치와의 연계상태, 변속표시부 및 각부의 연계상태 표시도.

Claims (8)

  1. 엔진(1)으로부터의 동력을 주클러치(5,6), 주변속장치(10) 및 부변속장치(11
    )를 통하여 주행장치(14,19)에 전달하는 작업차의 주행변속시스템으로서, 상기 주변속장치는 제1유압클러치군(21,22,23,24)과 이들 클러치의 온·오프조작을 실시하는 제1제어밸브군(31b,32b,33b,34b)를 가지고, 또한, 상기 부변속장치(11)는 제2유압클러치(26,27) 및 이들 클로치의 온·오프 조작을 실시하는 제2제어밸브(38,39)를 가지며, 상기 제1유압 클러치군과 상기 제2유압클러치의 어느 한 유압클러치에 압유를 공급함으로써 바람직한 변속을 실시가능하게 구성되어 있고, 상기 주행변속시스템은, (A) 상기 주변속장치 및 상기 부변속장치에 변속지령을 발신하는 변속조장구(61,62); (B) 상기 변속소작구의 지령에 의거하여 상기 지령 발신전부터 압유공급측으로 조작되어 있는 상기 제1제어밸브군(31b,32b,33b,34b)의 제어밸브를 배유측으로 조작하고, 상기 지령에 대응하는 상기 제1제어밸브군의 제어밸브를 공급측으로 조작하는 제1제어수단; 및 (C) 상기 변속조작구로부터의 지령에 의거하여, 상기 제2제어밸브(38,39)의 작동유의 공급측으로 조작되고 있는 제어밸브를 작동유의 배유측으로 조작하고, 그후, 점차적으로 작동유의 공급측으로 조작하는 제2제어수단을 갖는 것을 특징으로 하는 주행변속시스템.
  2. 제1항에 있어서, 상기 제2제어수단은 상기 변속조작구로부터의 변속지령에 의거하여 상기 제2제어밸브의 작동유를 배유측으로 조작할 때, 상기 제2유압클러치
    (26,27)의 작동압을 소정저압(P3)으로 감압조작하는 것을 특징으로 하는 주행변속시스템.
  3. 제2항에 있어서, (A) 상기 엔진의 액셀위치를 검출하는 엑셀센서(70); 상기 엔진의 회전수(N2)를 검출하는 회전수 센서(72); 및 상기 엑셀센서의 검출치에 대응하는 엔진의 무부하 회전수(N1)와 현재의 엔진 회전수(N2)와의 차(N3)를 검출하는 회전차 검출부재를 포함하는 검출수단, 및 (B) 상기 회전차 검출부재에 의해 검출되는 회전수의 차(N3)가 커질수록 상기 제2제어수단에 의해 감압조작되는 유압클러치의 상기 소정저압(P3)을 고압측으로 보정하는 제3제어수단을 갖는 것을 특징으로 하는 주행변속시스템.
  4. 제1항에 있어서, 저속, 중립, 고속위치와의 사이에서 전환조작이 가능한 상기 부변속장치의 하류측에 설치된 제2부변속장치; 제2부변속장치와 기계적으로 연동연결되고, 상기 제2부변속장치를 상기 3위치의 어느 하나로 전환조작하는 변속레버(28); 상기 변속레버(28)를 상기 제3위치의 어느 하나의 위치에 있어서 고정상태 및 고정해제상태로 전환조작가능한 로크 조작구(57); 및 상기 로크 조작구(57)가 고정해제측으로 조작되면 상기 주클러치(5,6)로부터의 작동유를 배출하여 이것을 전동차단측으로 조작하고, 상기 로크 조작구(57)가 고정측으로 조작되며 상기 주클러치(5,6)에 작동유를 공급하여 이것을 전동측으로 조작하는 제어수단을 갖는 것을 특징으로 하는 주행변속시스템.
  5. 제4항에 있어서, 상기 제어수단은 상기 로크 조작구가 고정해제측으로 조작되는 것과, 상기 부변속장치의 상기 제2제어밸부군중 작동유의 공급측으로 조작되는 제어밸브를 작동유의 배유측으로 조작하는 것을 특징으로 하는 주행변속시스템.
  6. 제4항에 있어서, 상기 변속조작구(61,62)는 상기 변속조작레버에 설치된 누르기 조작시 스위치(61,62)인 것을 특징으로 하는 주행변속시스템.
  7. 제1항에 있어서, 상기 변속구는 상기 주변속장치(10)를 증속측으로 시프트하는 시프트업 버튼(61)을 갖는 것을 특징으로 하는 주행변속시스템.
  8. 엔진(1)으로부터의 동력을 주클러치(5,6), 주변속장치(10,11) 및 보조클러치를 통하여 주행장치(14,19)에 전달하는 작업차의 주행변속시스템으로서, 상기 주변속장치는 제1유압클러치군(21,22,23,24,25,26,27)과 이들 클러치의 온·오프 조작을 실시하는 제1제어밸브군(31b,32b,33b,34b,38,39)을 가지고, 또한, 상기 보조 클러치를 온·오프 조작하는 제2제어밸브를 가지고, 상기 보조클러치는 상기 주행장치와 상기 주변속장치 사이에 설치되고, 상기 제1유압클러치군의 어느 하나의 유압클러치에 유압을 공금함으로써 바람직한 변속을 실시가능하게 구성되어 있고, 상기 주행변속시스템은 (A) 상기 주변속장치의 변속지령을 발신하는 변속조작구(61,62); (B) 상기 변속조작구의 지령에 의거하여 상기 지령의 발신전부터 압유공급측으로 조작되고 있는 상기 제1제어밸브군(31b, 32b, 33b, 34b, 38, 39)의 제어밸브를 공급측으로 조작하고, 상기 지령에 대응하는 상기 제1제어밸브군의 제어밸브를 공급픅으로 조작하는 는 제1제어수단; 및 (C) 상기 변속조작구로부터의 지령에 의거하여 상기 제2제어밸브를 작동유의 배유측으로 조작하고, 그후, 점차적으로 작동유 공급측으로 조작하는 제2제어수단을 갖는 것을 특징으로 하는 주행변속시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950019463A 1994-07-08 1995-07-04 작업차의 주행변속시스템 KR0175156B1 (ko)

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JP15769494A JP3164734B2 (ja) 1994-07-08 1994-07-08 作業車の走行変速構造

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998029302A1 (en) * 1996-12-30 1998-07-09 Ab Volvo Penta Valve assembly and a method of operating a power transmission
US6003391A (en) * 1997-09-01 1999-12-21 Kanzaki Kokyukoki Mfg. Co., Ltd. Transmission mechanism for a working vehicle
US6241066B1 (en) * 1998-08-03 2001-06-05 Kubota Corporation Working vehicle
TWI594912B (zh) * 2013-02-28 2017-08-11 井關農機股份有限公司 作業車輛
JP5742977B2 (ja) * 2014-01-31 2015-07-01 井関農機株式会社 作業車両の走行伝動装置
JP6575313B2 (ja) * 2015-11-12 2019-09-18 いすゞ自動車株式会社 デュアルクラッチ式変速機
US10935109B2 (en) * 2017-06-22 2021-03-02 Kubota Corporation Work vehicle transmission and work vehicle having the same
US10927926B2 (en) 2017-08-22 2021-02-23 Cnh Industrial America Llc Systems and methods for a transmission having a multi-speed range section
CN108506480B (zh) * 2018-05-24 2024-01-16 湖南农业大学 农用耕作机械自动换档多档位变速装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2791660B2 (ja) * 1987-04-10 1998-08-27 株式会社小松製作所 変速機の制御装置
WO1988010380A1 (en) * 1987-06-24 1988-12-29 Kabushiki Kaisha Komatsu Seisakusho Transmission controller
JP2816480B2 (ja) * 1989-08-01 1998-10-27 三菱農機株式会社 トラクタにおけるパワーシフト変速装置
JPH0439464A (ja) * 1990-06-05 1992-02-10 Kubota Corp 作業車の走行変速構造
US5172603A (en) * 1991-05-03 1992-12-22 Macinnis Richard F Electrically actuated shifting method and apparatus
JP2806462B2 (ja) * 1992-07-03 1998-09-30 株式会社クボタ 作業車の走行変速構造
JP3161853B2 (ja) * 1993-01-20 2001-04-25 株式会社クボタ 作業車の走行変速構造
JPH06221427A (ja) * 1993-01-25 1994-08-09 Kubota Corp 作業車の走行変速構造
US5487004A (en) * 1993-10-29 1996-01-23 Eaton Corporation Control system/method for automated mechanical transmission systems

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