KR970001763A - Control device of construction machine driving system - Google Patents

Control device of construction machine driving system Download PDF

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Publication number
KR970001763A
KR970001763A KR1019950018743A KR19950018743A KR970001763A KR 970001763 A KR970001763 A KR 970001763A KR 1019950018743 A KR1019950018743 A KR 1019950018743A KR 19950018743 A KR19950018743 A KR 19950018743A KR 970001763 A KR970001763 A KR 970001763A
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KR
South Korea
Prior art keywords
control valve
control
pilot
pedal
traveling
Prior art date
Application number
KR1019950018743A
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Korean (ko)
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KR100240083B1 (en
Inventor
이진한
남인택
Original Assignee
유상부
삼성중공업 주식회사
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Priority to KR1019950018743A priority Critical patent/KR100240083B1/en
Publication of KR970001763A publication Critical patent/KR970001763A/en
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Publication of KR100240083B1 publication Critical patent/KR100240083B1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2278Hydraulic circuits
    • E02F9/2285Pilot-operated systems
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2264Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267Valves or distributors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2278Hydraulic circuits
    • E02F9/2282Systems using center bypass type changeover valves
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2278Hydraulic circuits
    • E02F9/2292Systems with two or more pumps

Abstract

본 발명은 건설기계의 자동화를 이루기 위한 건설기계 주행시스템의 제어장치에 관한 것으로, 본 발명에 의한 제어장치는, 엔진과, 이 엔진에 의해 구동되는 유압펌프 및 파일럿펌프와, 상기 유압펌프의 토출유에 의해 작동되는 주행모터와, 상기 유압펌프와 상기 주행모터의 사이에 설치되어 스프울의 이동에 의한 유로의 절환접속으로 상기 주행모터의 작동을 제어하는 콘크롤밸브와, 운전자의 조작에 따라 상기 콘트롤밸브의 스프울에 상기 파일럿펌프로부터의 파일럿압을 인가하여 상기 상기 스프울을 이동시킴으로써 상기 콘트롤밸브의 작동을 제어하는 주행페달을 구비한 건설기계 주행시스템에 있어서, 상기 주행페달과 별도로 상기 콘트롤밸브의 스프울에 상기 파일럿펌프로부터의 파일럿압을 인가하여 상기 콘트롤밸브의 작동을 제어하는 수단을 구비하며, 상기 주행페달에 의한 상기 콘트롤밸브의 제어는 상기 수단에 의한 상기 콘트롤밸브의 제어에 비해 우선권을 갖는 것을 특징으로 한다.The present invention relates to a control device for a construction machine running system for automating a construction machine. The control device according to the present invention includes an engine, a hydraulic pump and a pilot pump driven by the engine, and a discharge of the hydraulic pump. A driving motor operated by oil, a control valve installed between the hydraulic pump and the driving motor to control the operation of the driving motor by a switching connection of a flow path by the movement of the spring, and according to the driver's operation A construction machine traveling system having a traveling pedal for controlling the operation of the control valve by applying a pilot pressure from the pilot pump to a spring of a control valve to move the spring, the control being separate from the driving pedal. The pilot pressure from the pilot pump is applied to the spring of the valve to control the operation of the control valve. Includes a stage, the control of the control valve by the driving pedal is characterized in that a priority compared to the control of the control valve by said means.

Description

건설기계 주행시스템의 제어장치Control device of construction machine driving system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 건설기계 주행시스템을 개략적으로 도시하는 유압회로도, 제2도는 본 발명의 일실시예에 의한 제어장치가 적용된 건설기계 주행시스템을 개략적으로 도시하는 유압회로도, 제3도는 본 발명의 제어기의 제어흐름을 도시하는 흐름도.FIG. 1 is a hydraulic circuit diagram schematically showing a conventional construction machine traveling system, FIG. 2 is a hydraulic circuit diagram schematically showing a construction machine traveling system to which a control apparatus according to an embodiment of the present invention is applied, and FIG. Flow chart showing the control flow of the controller.

Claims (7)

엔진과, 이 엔진에 의해 구동되는 유압펌프 및 파일럿펌프와, 상기 유압펌프의 토출유에 의해 작동되는 주행모터와, 상기 유압펌프와 상기 주행모터의 사이에 설치되어 스프울의 이동에 의한 유로의 절환접속으로 상기 주행모터의 작동을 제어하는 콘크롤밸브와, 운전자의 조작에 따라 상기 콘트롤밸브의 스프울에 상기 파일럿펌프로부터의 파일럿압을 인가하여 상기 스프울을 이동시킴으로써 상기 콘트롤밸브의 작동을 제어하는 주행페달을 구비한 건설기계 주행시스템에 있어서, 상기 주행페달과 별도로 상기 콘트롤밸브의 스프울에 상기 파일럿펌프로부터의 파일럿압을 인가하여 상기 콘트롤밸브의 작동을 제어하는 수단을 구비하며, 상기 주행페달에 의한 상기 콘트롤밸브의 제어는 상기 수단에 의한 상기 콘트롤밸브의 제어에 비해 우선권을 갖는 것을 특징으로 하는 건설기계 주행시스템의 제어장치.Switching between the engine, the hydraulic pump and pilot pump driven by the engine, the traveling motor operated by the discharge oil of the hydraulic pump, and the hydraulic pump and the traveling motor, and the flow path due to the movement of the sprue. The control valve controls the operation of the control valve by applying a pilot pressure from the pilot pump to the spring of the control valve according to the driver's operation and a control valve for controlling the operation of the traveling motor. A construction machine traveling system having a traveling pedal, comprising: means for controlling the operation of the control valve by applying a pilot pressure from the pilot pump to a spring of the control valve separately from the traveling pedal. Control of the control valve by a pedal has priority over control of the control valve by the means. Control device for a construction machine traveling system, characterized in that. 제1항에 있어서, 상기 수단은: 상기 파일럿펌프와 상기 콘트롤밸브의 스프울 사이에 설치되어 소정의 입력전원을 인가받아 상기 콘트롤밸브의 스프울에 상기 파일럿펌프로부터의 파일럿압을 인가하는 비례제어밸브; 상기 주행페달에 의해 얻어져 상기 콘트롤밸브의 스프울에 작용하는 파일럿압 및 상기 비례제어밸브에 의해 얻어져 상기 콘트롤밸브의 스프울에 작용하는 파일럿압을 검출하는 압력센서; 및 상기 압력센서에 의해 감지된 파일럿압 데이터를 입력받아 상기 비례제어밸브에 상기 소정의 입력전원을 출력하는 제어기를 구비하여 구성됨을 특징으로 하는 건설기계 주행시스템의 제어장치.The proportional control of claim 1, wherein the means comprises: a proportional control disposed between the pilot pump and the spring of the control valve and receiving a predetermined input power to apply the pilot pressure from the pilot pump to the spring of the control valve. valve; A pressure sensor obtained by the traveling pedal and acting on the spring of the control valve and a pilot pressure obtained by the proportional control valve to detect the pilot pressure on the spring of the control valve; And a controller configured to receive pilot pressure data sensed by the pressure sensor and output the predetermined input power to the proportional control valve. 제2항에 있어서, 상기 비례제어밸브측 파일럿라인과 상기 주행페달측 파일럿라인을 합류시켜 상기 콘트롤밸브측 파일럿라인과 연결시키는 셔틀밸브를 더 구비하여 구성됨을 특징으로 하는 건설기계 주행시스템의 제어장치.The control apparatus of claim 2, further comprising: a shuttle valve configured to join the proportional control valve side pilot line and the traveling pedal side pilot line to connect with the control valve side pilot line. . 제2항 또는 제3항에 있어서, 상기 주행페달측 파일럿라인에 설치되어 상기 주행페달에 의해 얻어진 파일럿압의 유무를 감지하여 상기 주행페달의 작동여부를 상기 제어기에 알려주는 압력스위치를 더 구비하여 구성됨을 특징으로 하는 건설기계 주행시스템의 제어장치.The pressure switch of claim 2 or 3, further comprising a pressure switch installed in the pilot pedal side pilot line, the pressure switch being configured to detect the presence or absence of the pilot pressure obtained by the driving pedal and to inform the controller of the operation pedal. Control device for a construction machine running system, characterized in that configured. 제4항에 있어서, 상기 제어기는 상기 압력스위치에 의해 상기 주행페달이 작동하고 있다고 판단되면 상기 비례제어밸브로의 입력전원의 출력을 중단함을 특징으로 하는 건설기계 주행시스템의 제어장치.The control apparatus of claim 4, wherein the controller stops output of the input power to the proportional control valve when it is determined that the driving pedal is operating by the pressure switch. 제4항에 있어서, 상기 제어기는 상기 주행페달 작동에 의해 얻어진 상기 압력스위치 신호와 상기 압력센서 신호를 데이타로 저장하여 이를 차회 자동주행제어에 반영하기 위한 수단을 구비하여 구성됨을 특징으로 하는 건설기계 주행시스템의 제어장치.5. The construction machine according to claim 4, wherein the controller is provided with means for storing the pressure switch signal and the pressure sensor signal obtained by the driving pedal operation as data and reflecting them to the next automatic driving control. Control system of the traveling system. 제5항에 있어서, 상기 제어기는 상기 주행페달 작동에 의해 얻어진 상기 압력스위치 신호와 상기 압력센서 신호를 데이타로 저장하여 이를 차회 자동주행제어에 반영하기 위한 수단을 구비하여 구성됨을 특징으로 하는 건설기계 주행시스템의 제어장치.6. The construction machine according to claim 5, wherein the controller is provided with means for storing the pressure switch signal and the pressure sensor signal obtained by the driving pedal operation as data and reflecting them to the next automatic driving control. Control system of the traveling system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950018743A 1995-06-30 1995-06-30 A control apparatus of construction machine travelling system KR100240083B1 (en)

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KR1019950018743A KR100240083B1 (en) 1995-06-30 1995-06-30 A control apparatus of construction machine travelling system

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KR970001763A true KR970001763A (en) 1997-01-24
KR100240083B1 KR100240083B1 (en) 2000-01-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505350B1 (en) * 1998-05-26 2005-09-26 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Automatic traveling speed control device and control method for wheel type hydraulic excavator
KR100513433B1 (en) * 1998-08-03 2005-10-26 한국항공우주산업 주식회사 Hydraulic control valve and continuously variable transmission
KR100794360B1 (en) * 2005-07-01 2008-01-15 주식회사 참 존 Cosmetic composition comprising the extract of Crinum asiaticum Linne var. having anti-allergic and anti-inflammatory activity
WO2014115911A1 (en) * 2013-01-25 2014-07-31 볼보 컨스트럭션 이큅먼트 에이비 Driving control device of construction machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101334433B1 (en) * 2006-11-30 2013-11-29 두산인프라코어 주식회사 Device for safety driving and Method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100505350B1 (en) * 1998-05-26 2005-09-26 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Automatic traveling speed control device and control method for wheel type hydraulic excavator
KR100513433B1 (en) * 1998-08-03 2005-10-26 한국항공우주산업 주식회사 Hydraulic control valve and continuously variable transmission
KR100794360B1 (en) * 2005-07-01 2008-01-15 주식회사 참 존 Cosmetic composition comprising the extract of Crinum asiaticum Linne var. having anti-allergic and anti-inflammatory activity
WO2014115911A1 (en) * 2013-01-25 2014-07-31 볼보 컨스트럭션 이큅먼트 에이비 Driving control device of construction machine

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