KR970021549A - Engine speed control device of construction heavy equipment - Google Patents

Engine speed control device of construction heavy equipment Download PDF

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Publication number
KR970021549A
KR970021549A KR1019950038602A KR19950038602A KR970021549A KR 970021549 A KR970021549 A KR 970021549A KR 1019950038602 A KR1019950038602 A KR 1019950038602A KR 19950038602 A KR19950038602 A KR 19950038602A KR 970021549 A KR970021549 A KR 970021549A
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KR
South Korea
Prior art keywords
engine
engine speed
position detector
predetermined
control device
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Application number
KR1019950038602A
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Korean (ko)
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KR100287367B1 (en
Inventor
조장욱
박기현
신복호
Original Assignee
유상부
삼성중공업 주식회사
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Priority to KR1019950038602A priority Critical patent/KR100287367B1/en
Publication of KR970021549A publication Critical patent/KR970021549A/en
Application granted granted Critical
Publication of KR100287367B1 publication Critical patent/KR100287367B1/en

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Classifications

    • 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
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

본 발명은 휠타입 굴삭기 등의 주행가능한 건설용 중장비에 적용되며 제어기와 위치센서 및 전기식 모터등에 의해 주행페달의 스트로크에 따라 소정의 엔진회전수를 출력할 수 있도록 된 엔진회전수 제어장치에 관한 것이다. 본 발명에 의한 제어장치는, 주행페달의 조작 스트로크를 검출하는 제1위치검출기와, 엔진의 드로틀레버의 동작 스트로크를 검출하는 제2위치검출기와, 엔진의 드로틀레버와 기구적으로 연결되어 소정의 전기적신호에 따라 구동되어 드로틀레버를 동작시키는 전기식 모터와, 소정의 전기적신호에 따라 유압펌프의 사판각을 변화시키는 전자비례밸브 및 제1위치검출기와 제2위치검출기로부터 데이터를 입력받아 소정의 제어연산을 수행한 후 상기 전기식 모터 및 상기 전자비례밸브에 소정의 출력신호를 인가하는 제어기를 구비하여 구성된다.The present invention relates to an engine speed control device that is applied to a heavy construction equipment capable of traveling such as a wheel type excavator and outputs a predetermined engine speed according to a stroke of a driving pedal by a controller, a position sensor, and an electric motor. . The control device according to the present invention includes a first position detector for detecting an operation stroke of a traveling pedal, a second position detector for detecting an operation stroke of a throttle lever of an engine, and a mechanically connected to a throttle lever of an engine. An electric motor driven according to an electrical signal to operate the throttle lever, an electronic proportional valve for changing the swash plate angle of the hydraulic pump according to a predetermined electrical signal, and a predetermined control by receiving data from the first position detector and the second position detector And a controller for applying a predetermined output signal to the electric motor and the electromagnetic proportional valve after performing the calculation.

Description

건설용 중장비의 엔진회전수 제어장치Engine speed control device of construction heavy equipment

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

제1도는 종래의 건설용 중장비의 엔진회전수 제어계통을 도시하는 개략도,1 is a schematic diagram showing an engine speed control system of a conventional construction heavy equipment,

제2도는 본 발명의 일실시예에 의한 중장비의 엔진회전수 제어계통을 도시하는 개략도.2 is a schematic diagram showing an engine speed control system for heavy equipment according to an embodiment of the present invention.

Claims (2)

엔진과, 이 엔진에 의해 구동되는 적어도 하나 이상의 유압펌프와, 이 유압펌프로부터 토출된 작동유에 의해 작동되는 주행모터와, 상기 유압펌프와 상기 주행모터사이의 유로중에 설치되어 상기 주행모터의 기동, 정지 및 방향절환을 제어하는 콘트롤밸브와, 운전자에 의해 조작되어 상기 콘트롤밸브의 스프울을 제어하는 주행페달을 구비한 건설용 중장비의 엔진회전수 제어장치에 있어서 : 상기 주행페달의 조작 스트로크를 검출하는 제1위치검출기; 상기 엔진의 드로틀레버의 동작 스트로크를 검출하는 제2위치검출기; 상기 엔진의 드로틀레버와 기구적으로 연결되어 소정의 전기적신호에 따라 구동되어 상기 드로틀레버를 동작시키는 전기식 모터; 소정의 전기적신호에 따라 상기 유압펌프의 사판각을 변화시키는 전자비례밸브; 및 상기 제1위치검출기와 상기 제2위치검출기로부터 데이터를 입력받아 소정의 제어연산을 수행한 후 상기 전기식 모터 및 상기 전자비례밸브에 소정의 출력신호를 인가하는 제어기를 구비하여 구성됨을 특징으로 하는 건설용 중장비의 엔진회전수 제어장치.An engine, at least one hydraulic pump driven by the engine, a traveling motor operated by hydraulic oil discharged from the hydraulic pump, and a flow path between the hydraulic pump and the traveling motor, the starting of the traveling motor, An engine speed control apparatus for construction heavy equipment having a control valve for controlling stop and direction switching and a driving pedal operated by a driver to control the spring of the control valve, the apparatus comprising: detecting an operating stroke of the traveling pedal A first position detector; A second position detector for detecting an operating stroke of the throttle lever of the engine; An electric motor mechanically connected to the throttle lever of the engine and driven according to a predetermined electrical signal to operate the throttle lever; An electromagnetic proportional valve for changing the swash plate angle of the hydraulic pump according to a predetermined electrical signal; And a controller configured to receive data from the first position detector and the second position detector, perform a predetermined control operation, and apply a predetermined output signal to the electric motor and the electromagnetic proportional valve. Engine speed control device of heavy equipment for construction. 제1항에 있어서, 상기 제어장치는 : 상기 엔진의 회전수를 검출하는 센서; 및 상기 제어기와 연결되는 주행스위치, 상기 주행스위치는 온(ON)시, 상기 제어기가 상기 센서로부터 현재의 엔진 회전수를 인가받아 현재 엔진 회전수가 소정의 주행시작 기준회전수 이상이면 상기 전기모터에 출력신호를 인가하여 주행시작 기준회전수 이하로 하강시키고, 오프(OFF)시, 상기 제어기가 상기 주행스위치를 온(ON)시키기 이전 상태로 상기 엔진 회전수를 제어하도록함을 더 구비하여 구성됨을 특징으로 하는 건설용 중장비의 엔진회전수 제어장치.The apparatus of claim 1, wherein the control device comprises: a sensor for detecting a rotation speed of the engine; And a driving switch connected to the controller, wherein the driving switch is turned on, and when the controller receives the current engine speed from the sensor and the current engine speed is equal to or greater than a predetermined driving start reference speed, the driving switch is connected to the electric motor. And applying the output signal to lower the driving start reference speed or less, and when the switch is OFF, the controller controls the engine speed to a state prior to turning on the driving switch. Engine speed control device for heavy equipment for construction, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950038602A 1995-10-31 1995-10-31 Device for controlling number of engine rotation in construction heavy equipment KR100287367B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950038602A KR100287367B1 (en) 1995-10-31 1995-10-31 Device for controlling number of engine rotation in construction heavy equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038602A KR100287367B1 (en) 1995-10-31 1995-10-31 Device for controlling number of engine rotation in construction heavy equipment

Publications (2)

Publication Number Publication Date
KR970021549A true KR970021549A (en) 1997-05-28
KR100287367B1 KR100287367B1 (en) 2001-04-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200124646A (en) * 2018-03-09 2020-11-03 젯트에프 프리드리히스하펜 아게 Drive for working machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101220675B1 (en) 2007-08-22 2013-01-09 현대중공업 주식회사 Control of Engine Speed and Hydraulic Pump by an Accelerator Pedal in Wheel Excavator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200124646A (en) * 2018-03-09 2020-11-03 젯트에프 프리드리히스하펜 아게 Drive for working machine

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KR100287367B1 (en) 2001-04-16

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