WO2013100471A1 - 건설기계의 엔진 회전수 제어방법 - Google Patents
건설기계의 엔진 회전수 제어방법 Download PDFInfo
- Publication number
- WO2013100471A1 WO2013100471A1 PCT/KR2012/011055 KR2012011055W WO2013100471A1 WO 2013100471 A1 WO2013100471 A1 WO 2013100471A1 KR 2012011055 W KR2012011055 W KR 2012011055W WO 2013100471 A1 WO2013100471 A1 WO 2013100471A1
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- WIPO (PCT)
- Prior art keywords
- engine
- rpm
- load
- rate
- less
- Prior art date
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Classifications
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- 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
- F02D41/08—Introducing corrections for particular operating conditions for idling
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- 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
- F02D29/02—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 vehicles; peculiar to engines driving variable pitch propellers
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- 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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
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- 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
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
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- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/16—Introducing closed-loop corrections for idling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
- F02D31/008—Electric control of rotation speed controlling fuel supply for idle speed control
Definitions
- the present invention relates to a method for controlling the engine speed of a construction machine, and more particularly, when the change in the engine load ratio of the construction machine is less than a predetermined ratio with respect to the set load rate continuously within a predetermined time, the engine RPM of the construction machine in the idle RPM state
- the present invention relates to a method for controlling engine speed of a construction machine that can be continuously controlled at a predetermined ratio or less.
- the construction machinery is driven at about 2000 RPM to 2500 RPM when the operation is started after the start of the start, when the operation is completed, that is, if there is no operation after a certain time after the completion of work, vehicle control device Idle control is performed to reduce the RPM of the engine to approximately 1200 RPM.
- the vehicle control device determines that it is an idle state and reduces the RPM of the engine to about 800 RPM. Auto idle control is performed to allow the engine to run with minimum RPM.
- the construction machine is generated to control the idle RPM from the working RPM according to the presence or absence of the working state, and, in addition, the control is generated to the auto idle RPM again according to the idle state in the idle RPM to control the engine to be driven.
- the present invention was devised to solve the problems as described above, the engine RPM of the construction machine is continuously controlled to a certain ratio or less in the idle RPM state when the change of the engine load ratio is less than a certain ratio with respect to the load rate continuously set within a predetermined time.
- An object of the present invention is to provide a method for controlling engine speed of a construction machine.
- the object of the present invention is not limited to the above-mentioned object, other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.
- the step of controlling the RPM of the engine to correspond to the set RPM receiving a load ratio of the engine according to the set engine RPM and converting and setting the load ratio into a load change rate; Receiving the load ratio of the current engine when the auto idle control function is selected and converting the load into a load change rate;
- the engine RPM is driven by a modified RPM reduced by a predetermined ratio from the preset RPM.
- the engine speed control method of the construction machine comprising the step of controlling the driving of the engine is provided.
- the change of the engine load ratio is continuously changed to the idle load rate in a predetermined time.
- the engine RPM of the construction machine is continuously controlled to be less than the predetermined ratio in the idle RPM state, so that the engine may be driven at a preset RPM only in a state where actual load is required.
- FIG. 1 is a block diagram showing an engine speed control system of a construction machine according to a preferred embodiment of the present invention.
- FIG. 2 is a control flowchart illustrating a method for controlling engine speed of a construction machine according to an exemplary embodiment of the present invention.
- FIG. 1 is a block diagram showing an engine speed control system of a construction machine according to a preferred embodiment of the present invention
- Figure 2 is a control flow diagram showing an engine speed control method of a construction machine according to a preferred embodiment of the present invention.
- the engine speed control system of a construction machine As shown in Figure 1, the engine speed control system of a construction machine according to a preferred embodiment of the present invention, the engine control device (1) for controlling the engine according to the presence or absence of the front operation, steering operation, pedal operation, etc., The engine control dial (2) for setting the operating RPM of the engine from the user, the idle switch (3) for selecting the auto idle control function from the user, and the user selecting the auto idle control function from the idle switch (3).
- the instrument panel 4 a start switch 5 for inputting a signal related to the start of a construction machine from a user, a battery 6 for supplying operating power to the components when the signal of the start switch 5 is input, Generates a control signal to the engine controller 1 so as to correspond to the operating RPM of the engine set by the engine, and selects the engine load factor when the auto idle control function is selected.
- the engine RPM is controlled by RPM to have a RPM below the predetermined ratio of the set engine RPM, and then continuously It includes a vehicle control device (7) for reducing the RPM of the engine at a predetermined rate per second from the previously calculated RPM when the load of the engine has a load ratio less than a predetermined ratio with respect to the set load ratio during the time.
- the engine control device 1 determines the presence or absence of work on the construction machine from the front work detection sensor, the steering work detection sensor, the pedal operation detection sensor, and the like, and the engine according to the control signal input from the vehicle control device 7. To control the driving.
- the engine control dial 2 is to set the operating RPM of the engine from the user, and to allow the engine of the construction machine to be operated within the range of the set RPM during work or driving.
- the idle switch 3 so that the automatic idle control function is selected by the user, the engine RPM of the construction machine can be lowered to the idle RPM and the high idle RPM when the work or driving operation has a state of absence for a predetermined time. To improve fuel economy.
- the instrument panel 4 is a display means for displaying this to the user when the auto idle control function is selected from the idle switch 3, and the driving information and other information necessary for the operation of the construction machine are displayed to the user. Be aware of the condition.
- the vehicle control apparatus 7 is a control means for controlling to reduce the set RPM of the engine to the set idle RPM or the high idle RPM when the idle state of the vehicle continues from the set RPM when the auto idle control function is selected.
- the vehicle control device 7 displays the user when the auto idle control function is selected, receives the load factor of the engine, and measures the load rate. Then, the load rate for 4 seconds is 30% or less of the set load rate. If the load rate (or load change rate) is 10% or less of the set instantaneous load rate, control is performed to reduce the RPM of the engine to be a modified RPM set to 90% of the idle RPM or high idle RPM.
- the vehicle control apparatus 7 has a load rate for 10 seconds after the idle RPM control is continuously 30% or less of the set load rate and the instantaneous load rate (or load change rate) is 10% or less of the set instantaneous load rate. In this case, the operation of the engine continues to perform a control to further decrease by 1% per second at the set RPM.
- the operating RPM or the working RPM of the engine is set from the engine control dial (2) to control the vehicle
- the engine control device 1 controls the RPM of the engine (S100).
- the load factor of the current engine is provided from the engine control device 1 to the vehicle control device 7 to be converted and set to the instantaneous load rate (S105).
- the vehicle control apparatus 7 determines whether the auto idle control function is selected through the idle switch 3 from the user (S110), and if the auto idle control function is selected in the step S110, the vehicle control unit 7 determines the instrument panel 4.
- the idle control function selection state is displayed (S115), otherwise, the instrument panel 4 displays the idle function selection state release and the flow proceeds to step S100 (S120).
- the vehicle control apparatus 7 receives the current engine load ratio from the engine controller 1 after the step S115, and then within 4 seconds, the current engine load ratio is 30% or less of the set load ratio, and the current engine It is determined whether or not the load change rate obtained by converting the load rate is 10% or less of the set load change rate (S125).
- step S125 the vehicle control apparatus 7 has a load ratio of the current engine less than 30% of the set load rate within 4 seconds, and a load change rate of converting the load rate of the current engine is 10% or less of the set load change rate. If the state of, and performs the RPM control to limit the maximum RPM of the engine to 90% or less of the preset modified engine RPM (idle RPM or high idle RPM) (S130), otherwise proceeds to step S100.
- the vehicle control apparatus 7 determines whether the load rate of the current engine is 30% or less of the set load rate and the load change rate that converts the load rate of the current engine is 10% or less of the set load change rate within 10 seconds continuously. Determine (S135).
- step S135 the load rate of the current engine is 30% or less of the set load rate for 10 seconds or less continuously, and the load change rate that converts the load rate of the current engine is the set load change rate. If less than 10% of the state, while limiting the modified RPM of the engine to less than 10% of the set operating RPM or working RPM, and performs an auto-idle RPM control to decrease by 1% per second and proceeds to step S135 If not (S140), otherwise proceeds to step S100.
- the engine speed control method of the construction machine if the load ratio of the engine is received and set to convert the instantaneous load rate, and has a load ratio less than a predetermined ratio with respect to the set load ratio for a certain time, the RPM of the engine of the set engine RPM Idle RPM is controlled to have an RPM below a predetermined ratio, and then, when the engine load has a load ratio below a predetermined ratio with respect to the set load ratio for a predetermined time continuously, the RPM of the engine has an RPM corresponding to the idle RPM.
- the present invention is easy to implement because there is no structural change, and the effect of the implementation is obvious, so it is highly applicable to construction machinery.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
Claims (3)
- 엔진의 RPM을 설정된 RPM에 대응되도록 제어하는 단계;상기 설정된 엔진 RPM에 따른 엔진의 부하율을 제공받아 이를 부하 변화율로 변환 및 설정하는 단계;오토 아이들 제어 기능 선택시 현재 엔진의 부하율을 제공받아 이를 부하 변화율로 변환 하는 단계;상기 현재 엔진의 부하율과 이에 따른 부하 변화율이 제1시간 동안 각각 상기 설정된 엔진의 부하율과 부하 변화율의 일정비율 이하이면 엔진의 RPM을 기 설정된 RPM보다 기 설정된 비율만큼 감소된 수정 RPM으로 엔진의 구동을 제어하는 단계;상기 RPM 제어 수행시 상기 현재 엔진의 부하율과 이에 따른 부하 변화율이 제2시간 동안 각각 상기 설정된 엔진의 부하율과 부하 변화율의 일정비율 이하이면, 상기 수정 RPM을 일정 비율 이하로 연속 감소시킨 수정된 수정 RPM으로 엔진의 구동을 제어하는 단계를 포함하는 것을 특징으로 하는 건설기계의 엔진 회전수 제어방법.
- 제1항에 있어서, 상기 현재 엔진의 부하율과 이에 따른 부하 변화율이 각각 상기 설정된 엔진의 부하율의 30% 이하이고 부하 변화율의 10% 이하인지를 판단하는 것을 특징으로 하는 건설기계의 엔진 회전수 제어방법.
- 제1항에 있어서, 오토 아이들 RPM 제어를 수행하는 단계는 상기 엔진의 RPM을 1초당 1%씩 감소시키는 것을 특징으로 하는 건설기계의 엔진 회전수 제어 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US14/369,012 US9885294B2 (en) | 2011-12-28 | 2012-12-18 | Method for controlling RPM of construction machine engine |
CN201280065532.2A CN104024612B (zh) | 2011-12-28 | 2012-12-18 | 工程机械的发动机转数控制方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2011-0144421 | 2011-12-28 | ||
KR1020110144421A KR101806566B1 (ko) | 2011-12-28 | 2011-12-28 | 건설기계의 엔진 회전수 제어방법 |
Publications (1)
Publication Number | Publication Date |
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WO2013100471A1 true WO2013100471A1 (ko) | 2013-07-04 |
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ID=48697851
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Application Number | Title | Priority Date | Filing Date |
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PCT/KR2012/011055 WO2013100471A1 (ko) | 2011-12-28 | 2012-12-18 | 건설기계의 엔진 회전수 제어방법 |
Country Status (4)
Country | Link |
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US (1) | US9885294B2 (ko) |
KR (1) | KR101806566B1 (ko) |
CN (1) | CN104024612B (ko) |
WO (1) | WO2013100471A1 (ko) |
Cited By (1)
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EP2990543A3 (en) * | 2014-08-29 | 2016-07-06 | CNH Industrial Italia S.p.A. | Auto-idle system and method for an off highway vehicle |
Families Citing this family (8)
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KR20140109883A (ko) * | 2011-12-15 | 2014-09-16 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계의 효율 양호 rpm 구간 표시 장치 |
KR102075817B1 (ko) * | 2013-04-04 | 2020-03-02 | 두산인프라코어 주식회사 | 건설기계 엔진의 제어장치 및 제어방법 |
US10801425B2 (en) * | 2014-10-22 | 2020-10-13 | Ge Global Sourcing Llc | System and method for engine control |
US20160225652A1 (en) | 2015-02-03 | 2016-08-04 | Applied Materials, Inc. | Low temperature chuck for plasma processing systems |
AU2018248345B2 (en) * | 2017-04-07 | 2020-09-03 | Ge Global Sourcing Llc | System and method for engine control |
CN108119250A (zh) * | 2017-12-18 | 2018-06-05 | 潍柴动力股份有限公司 | 一种怠速控制方法、装置及电子设备 |
DE102020006328A1 (de) * | 2019-12-16 | 2021-06-17 | Deutz Aktiengesellschaft | CAN-Kommunikationsprotokollsystem zum Austausch von Kraftstoffverbrauch und/oder betriebsflüssigkeitsverbrauchs- und geräuschoptimierenden Botschaften zwischen An- und Abtriebskomponenten, welche gleichfalls dazu beitragen, die Gesamtverfügbarkeit des Systems zu erhöhen und Verfahren |
JP2023131654A (ja) * | 2022-03-09 | 2023-09-22 | コベルコ建機株式会社 | 建設機械の制御装置およびこれを備えた建設機械 |
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2012
- 2012-12-18 CN CN201280065532.2A patent/CN104024612B/zh not_active Expired - Fee Related
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- 2012-12-18 US US14/369,012 patent/US9885294B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
US9885294B2 (en) | 2018-02-06 |
CN104024612B (zh) | 2016-11-02 |
CN104024612A (zh) | 2014-09-03 |
KR20130076025A (ko) | 2013-07-08 |
US20140343829A1 (en) | 2014-11-20 |
KR101806566B1 (ko) | 2017-12-08 |
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