WO2013100218A1 - 건설기계의 엔진 제어방법 - Google Patents
건설기계의 엔진 제어방법 Download PDFInfo
- Publication number
- WO2013100218A1 WO2013100218A1 PCT/KR2011/010209 KR2011010209W WO2013100218A1 WO 2013100218 A1 WO2013100218 A1 WO 2013100218A1 KR 2011010209 W KR2011010209 W KR 2011010209W WO 2013100218 A1 WO2013100218 A1 WO 2013100218A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- hydraulic pump
- detecting
- main hydraulic
- operating
- Prior art date
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Classifications
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- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- 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
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/2066—Control of propulsion units of the type combustion engines
-
- 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
-
- 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
- E02F9/2278—Hydraulic circuits
- E02F9/2285—Pilot-operated systems
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- 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
- E02F9/26—Indicating devices
- E02F9/267—Diagnosing or detecting failure of vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the present invention relates to a method for controlling an engine of a construction machine, and more particularly, to an engine of a construction machine that allows the engine to be forcibly stopped when the working device of the equipment is malfunctioned in response to the driver's will during operation of an excavator or the like. It relates to a control method.
- a hydraulic pump 1 connected to an engine (not shown),
- An attachment 2 such as an arm and a travel motor 3 connected to the hydraulic pump 1,
- An operation lever 4 (RCV lever) and a driving pedal 5 (RCV pedal) for outputting a control signal in proportion to the driver's operation amount;
- Main control valve (6) for controlling the start, stop and redirection of
- a controller 7 for controlling the discharge flow rate of the hydraulic pump 1 or the like according to the operation of the operation lever 4 or the traveling pedal 5.
- the pilot signal pressure supplied from the pilot pump (not shown) is controlled via the operation lever 4 as the operator operates the operation lever 4.
- the work device spool 8 of the valve 6 is switched.
- the hydraulic oil supplied from the hydraulic pump 1 is supplied to the boom cylinder via the spool and the like, so that it is possible to drive work devices such as booms, arms and buckets.
- the pilot signal pressure switches the running spool 8 of the main control valve 6 via the pedal 5. Therefore, the left and right traveling motors can be driven by the hydraulic oil supplied from the hydraulic pump 1.
- the engine when the operation device is malfunctioned due to an unexpected factor such as a spool stick of the main control valve while the operation lever and the like are switched to the neutral position during operation, the engine is forcibly stopped. It also relates to the method of controlling the engine of the construction machine to prevent the secondary damage caused by the operation of the equipment against the driver's intention.
- a detecting means for detecting whether the device, the traveling device and the turning device, respectively, the main control valve and the controller comprising a detecting means for detecting whether the device, the traveling device and the turning device, respectively, the main control valve and the controller
- the engine is driven by a control signal from the controller. Control to stop forcibly.
- the above-described means for detecting the outlet pressure of the main hydraulic pump is a preferred embodiment, the above-described means for detecting the outlet pressure of the main hydraulic pump,
- It includes a pressure sensor assembled to the pressure measuring port formed in the housing of the main hydraulic pump.
- It includes a pressure sensor assembled to the pressure measuring port installed in the hydraulic pipe connecting the main hydraulic pump and the main control valve.
- It includes a pressure sensor assembled to the pressure measurement port is installed in the connection flow path of the main control valve connected to the main hydraulic pump.
- a pressure sensor that detects the pilot signal pressure input to the spool of the main control valve and transmits the detection signal to the controller is used.
- a pressure switch is used to generate a signal when the pilot signal pressure is reached.
- the operation lever or traveling pedal for operating the above-mentioned working device, turning device and traveling device respectively outputs electric signal values according to their operation
- the operation lever for operating the work device, the swing device, the travel device, or the means for detecting the operation of the travel pedal detects the operation by the electric signal values output from them, and the detection signal is transmitted to the controller.
- An engine control method for a construction machine configured as described above has the following advantages.
- the engine When the operating lever is switched to the neutral position during operation, the engine will be forcibly stopped if the work device is malfunctioned due to factors such as the spool stick of the main control valve or the valve failure. It is possible to prevent damage to workers or buildings around them due to running, etc., and to prevent property damage from equipment damage.
- FIG. 1 is a hydraulic circuit diagram showing a hydraulic system of an excavator to which the present invention is applied;
- FIG. 2 is a flowchart illustrating an engine control method of a construction machine according to an embodiment of the present invention.
- a detecting means for detecting whether the device, the traveling device and the turning device are operated the main control valve and the controller (ECU)
- the controller controls the engine to be forcibly stopped.
- It includes a pressure sensor assembled to the pressure measuring port formed in the housing (not shown) of the main hydraulic pump (1).
- a pressure sensor assembled to a pressure measuring port installed in a hydraulic pipe connecting the main hydraulic pump 1 and the main control valve 6 (MCV).
- It includes a pressure sensor assembled to the pressure measuring port installed in the connection flow path of the main control valve (6) connected to the main hydraulic pump (1).
- a pressure sensor which detects the pilot signal pressure input to the spool of the main control valve 1 and transmits the detection signal to the controller (ECU) 7 is used.
- a pressure switch is used that is ON and OFF to generate a signal.
- Means for detecting the operation of the operating lever 4 or the traveling pedal 5 for operating the work device 2, the turning device and the traveling device respectively detect whether the operation is performed by the electric signal values output from them.
- the signal is sent to the controller 7.
- the pressure at which the above-mentioned spool of the main control valve 6 is switched and opened depends on the type of equipment and each hydraulic actuator (boom, arm, bucket, traveling motor, etc.). There is little difference, but about 6 kgf / cm2. In other words, even when the operation lever 4 or the traveling pedal 5 is operated slightly, the pilot signal pressure p input to the spool of the main control valve 6 is about 6 kgf / cm 2 or less. As a result, the spool of the main control valve 6 does not open, and a work device such as a boom does not operate.
- the detection signal detected by the pressure sensor 12 which detects the pilot signal pressure according to the operation of) is transmitted to the controller 7, respectively.
- the controller 7 forcibly outputs a control signal to stop the engine driving. This prevents secondary damage from machine malfunctions against the driver's will.
- the controller 7 when the pilot signal pressure input to the spool of the main control valve 6 is less than 3 kgf / cm 2 and the outlet pressure of the main hydraulic pump 1 is greater than 20 kgf / cm 2, the controller 7 In this case, it is determined to be in a specific condition such as a spool stick of the main control valve 6, and forcibly outputs a control signal to the engine driving unit to stop the engine. On the other hand, when the pilot signal pressure input to the spool of the main control valve 6 is less than 3 kgf / cm 2 and the outlet pressure of the main hydraulic pump 1 is less than 20 kgf / cm 2, the engine is maintained. .
- the pilot signal pressure input to the spool of the main control valve 6 described above is less than 3 kgf / cm 2, and the pilot signal pressure input to the spool of the main control valve 6 is less than 20 kgf / cm 2. Maintain the normal operating condition of the equipment.
- the present invention having the above-described configuration, in a state in which the operating lever and the like is switched to the neutral position during operation, when the work device or the like is malfunctioned due to an unexpected factor such as a spool stick, the engine is forcibly stopped, against the driver's intention, it is possible to prevent equipment damage or human injury due to the rollover of the equipment due to the operation of the equipment.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (7)
- 하부 주행체와, 하부 주행체에 탑재되는 상부 선회체와, 상부 선회체에 장착되는 작업장치와, 엔진에 연결되는 메인 유압펌프와, 메인 유압펌프의 출구측 압력을 검출하는 검출수단과, 작업장치, 주행장치 및 선회장치의 조작 여부를 각각 검출하는 검출수단과, 메인 컨트롤밸브와, 컨트롤러를 포함하는 건설기계의 엔진 제어방법에 있어서:상기 작업장치, 선회장치, 주행장치를 각각 조작하는 조작레버 또는 주행페달 중 적어도 어느 하나를 조작시 검출되는 파일럿 신호압이 설정된 제1압력을 초과하는 지를 판단하는 제1단계와,상기 메인 유압펌프의 출구측 압력이 설정된 제2압력을 초과하는 지를 판단하는 제2단계를 구비하여,상기 제1단계에 의해 검출된 파일럿 신호압이 제1압력을 초과하지않고, 상기 제2단계에 의해 검출된 메인 유압펌프의 압력이 제2압력을 초과할 경우, 상기 컨트롤러로부터의 제어신호에 의해 엔진 구동을 강제로 멈추도록 제어하는 것을 특징으로 하는 건설기계의 엔진 제어방법.
- 제1항에 있어서, 상기 메인 유압펌프의 출구측 압력을 검출하는 수단으로,상기 메인 유압펌프의 하우징에 형성되는 압력 계측용 포트에 조립되는 압력센서를 포함하는 것을 특징으로 하는 건설기계의 엔진 제어방법.
- 제1항에 있어서, 상기 메인 유압펌프의 출구측 압력을 검출하는 수단으로,상기 메인 유압펌프와 메인 컨트롤밸브를 연결하는 유압배관에 설치되는 압력 계측용 포트에 조립되는 압력센서를 포함하는 것을 특징으로 하는 건설기계의 엔진 제어방법.
- 제1항에 있어서, 상기 메인 유압펌프의 출구측 압력을 검출하는 수단으로,상기 메인 유압펌프에 연결되는 메인 컨트롤밸브의 연결유로에 설치되는 압력 계측포트에 조립되는 압력센서를 포함하는 것을 특징으로 하는 건설기계의 엔진 제어방법.
- 제1항에 있어서, 상기 작업장치, 선회장치, 주행장치를 각각 조작하는 조작레버 또는 주행페달 중 적어도 어느 하나를 조작시 조작여부를 검출하는 수단으로,상기 메인 컨트롤밸브의 스풀에 입력되는 파일럿 신호압을 검출하여 검출신호를 상기 컨트롤러에 전송하는 압력 센서가 사용되는 것을 특징으로 하는 건설기계의 엔진 제어방법.
- 제1항에 있어서, 상기 작업장치, 선회장치, 주행장치를 각각 조작하는 조작레버 또는 주행페달 중 적어도 어느 하나를 조작시 조작여부를 검출하는 수단으로,상기 메인 컨트롤밸브의 스풀에 입력되는 파일럿 신호압이 설정된 압력에 도달될 경우 온, 오프되어 신호를 발생시키는 압력 스위치가 사용하는 것을 특징으로 하는 건설기계의 엔진 제어방법.
- 제1항에 있어서, 상기 작업장치, 선회장치, 주행장치를 각각 조작하는 조작레버 또는 주행페달은, 이들의 조작에 따라 각각 전기신호값을 출력하고,상기 작업장치, 선회장치, 주행장치를 각각 조작하는 조작레버 또는 주행페달의 조작여부를 검출하는 수단은, 이들로부터 출력되는 전기신호값에 의해 조작여부를 검출하고, 검출신호는 상기 컨트롤러에 전송되는 것을 특징으로 하는 건설기계의 엔진 제어방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2011/010209 WO2013100218A1 (ko) | 2011-12-28 | 2011-12-28 | 건설기계의 엔진 제어방법 |
EP11878350.5A EP2799692B1 (en) | 2011-12-28 | 2011-12-28 | Engine control method of construction machine |
KR1020147017557A KR101555539B1 (ko) | 2011-12-28 | 2011-12-28 | 건설기계의 엔진 제어방법 |
US14/368,909 US9664208B2 (en) | 2011-12-28 | 2011-12-28 | Engine control method of construction machine |
CN201180076010.8A CN104024606A (zh) | 2011-12-28 | 2011-12-28 | 施工机械的发动机控制方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2011/010209 WO2013100218A1 (ko) | 2011-12-28 | 2011-12-28 | 건설기계의 엔진 제어방법 |
Publications (1)
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WO2013100218A1 true WO2013100218A1 (ko) | 2013-07-04 |
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ID=48697673
Family Applications (1)
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PCT/KR2011/010209 WO2013100218A1 (ko) | 2011-12-28 | 2011-12-28 | 건설기계의 엔진 제어방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9664208B2 (ko) |
EP (1) | EP2799692B1 (ko) |
KR (1) | KR101555539B1 (ko) |
CN (1) | CN104024606A (ko) |
WO (1) | WO2013100218A1 (ko) |
Families Citing this family (3)
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GB2498173C (en) | 2011-12-12 | 2018-06-27 | Thermo Fisher Scient Bremen Gmbh | Mass spectrometer vacuum interface method and apparatus |
CN107514412A (zh) * | 2016-06-15 | 2017-12-26 | 李洪明 | 一种用于间歇式做功的节能液压系统动力源及工作系统 |
CN112302092B (zh) * | 2020-11-03 | 2022-05-03 | 三一重机有限公司 | 挖掘机启动自检方法、系统及电子设备 |
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JP4136041B2 (ja) * | 1997-12-04 | 2008-08-20 | 日立建機株式会社 | 油圧作業機の油圧駆動装置 |
JP4343055B2 (ja) * | 2004-08-05 | 2009-10-14 | 日立建機株式会社 | 建設機械の安全装置 |
JP4294563B2 (ja) * | 2004-09-10 | 2009-07-15 | 日立建機株式会社 | 作業機械 |
US7848860B2 (en) * | 2006-02-21 | 2010-12-07 | Fabio Saposnik | Machine loss-of-control detector and shutdown system |
KR100929420B1 (ko) * | 2006-12-28 | 2009-12-03 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 굴삭기의 붐 충격 완화장치 및 그 제어방법 |
JP4705598B2 (ja) * | 2007-03-14 | 2011-06-22 | 住友建機株式会社 | 建設機械のエンジン回転数制御装置 |
JP5121405B2 (ja) * | 2007-11-13 | 2013-01-16 | 株式会社小松製作所 | 建設機械のエンジン制御装置 |
JP5135169B2 (ja) * | 2008-10-31 | 2013-01-30 | 日立建機株式会社 | 建設機械の油圧駆動装置 |
AU2010228582B2 (en) * | 2009-03-24 | 2012-09-20 | Hitachi Construction Machinery Co., Ltd. | Device for detecting abnormality in construction machine |
KR101737902B1 (ko) | 2010-05-18 | 2017-05-22 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계용 더블 체크밸브 |
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2011
- 2011-12-28 EP EP11878350.5A patent/EP2799692B1/en active Active
- 2011-12-28 WO PCT/KR2011/010209 patent/WO2013100218A1/ko active Application Filing
- 2011-12-28 US US14/368,909 patent/US9664208B2/en active Active
- 2011-12-28 CN CN201180076010.8A patent/CN104024606A/zh active Pending
- 2011-12-28 KR KR1020147017557A patent/KR101555539B1/ko active IP Right Grant
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JP2001041069A (ja) * | 1999-07-27 | 2001-02-13 | Sumitomo Constr Mach Co Ltd | 建設機械のエンジン制御システム |
JP2005002804A (ja) * | 2003-06-09 | 2005-01-06 | Hitachi Constr Mach Co Ltd | 建設機械及びそのエンジン停止装置 |
JP2005201133A (ja) * | 2004-01-15 | 2005-07-28 | Hitachi Constr Mach Co Ltd | 建設機械のエンジン状態量検出装置及び検出方法 |
KR20110091467A (ko) * | 2010-02-05 | 2011-08-11 | 히다찌 겐끼 가부시키가이샤 | 건설 기계의 유압 구동 장치 |
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US20140331661A1 (en) | 2014-11-13 |
KR20140103295A (ko) | 2014-08-26 |
EP2799692A4 (en) | 2016-01-27 |
KR101555539B1 (ko) | 2015-09-24 |
EP2799692A1 (en) | 2014-11-05 |
CN104024606A (zh) | 2014-09-03 |
EP2799692B1 (en) | 2018-09-26 |
US9664208B2 (en) | 2017-05-30 |
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