US20130268166A1 - Engine idling control device of excavator and method thereof - Google Patents

Engine idling control device of excavator and method thereof Download PDF

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Publication number
US20130268166A1
US20130268166A1 US13/993,242 US201013993242A US2013268166A1 US 20130268166 A1 US20130268166 A1 US 20130268166A1 US 201013993242 A US201013993242 A US 201013993242A US 2013268166 A1 US2013268166 A1 US 2013268166A1
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US
United States
Prior art keywords
engine
state
safety device
selection switch
function selection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/993,242
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English (en)
Inventor
Eui-Chul Kim
Chun-Han Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Construction Equipment AB filed Critical Volvo Construction Equipment AB
Assigned to VOLVO CONSTRUCTION EQUIPMENT AB reassignment VOLVO CONSTRUCTION EQUIPMENT AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Kim, Eui-Chul, LEE, CHUN-HAN
Publication of US20130268166A1 publication Critical patent/US20130268166A1/en
Abandoned legal-status Critical Current

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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
    • E02F9/2058—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
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0822—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to action of the driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/10—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/04—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to presence or absence of the driver, e.g. to weight or lack thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/412—Excavators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • 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 an engine idling control device for an excavator and a method thereof. More particularly, the present invention relates to an engine idling control device for an excavator and a method thereof, which can recognize the state of an engine, an on/off state of a function selection switch, and a user's intention to work that has maximally been reflected, reduce fuel use and production of carbon dioxide through automatic stopping or driving of the engine in accordance with an operation state of a safety device having convenience, and easily implement engine stop and start function in accordance with a user's selection.
  • an excavator has a function of preventing unnecessary fuel consumption through lowering engine revolution to the minimum revolution (idle state) if an operation is not input for a predetermined time period in an engine driving state.
  • Korean Patent Application No. 10-2001-0052517 discloses a method for controlling driving or stopping of an engine of a vehicle for industry through time setting according to operation of an accelerator pedal.
  • the present invention has been made to solve the above-mentioned problems occurring in the related art, and one subject to be achieved by the present invention is to provide an engine idling control device for an excavator and a method thereof, which can recognize the state of an engine, an on/off state of a function selection switch, and a user's intention to work that has maximally been reflected, reduce fuel use and production of carbon dioxide through automatic stopping or driving of the engine in accordance with an operation state of a safety device having convenience, and easily implement engine stop and start function in accordance with a user's selection.
  • an engine idling control device for an excavator, which includes a first signal detection unit detecting an on/off state of a function selection switch; a second signal detection unit detecting an operation state (on/off state) of a safety device; and an engine idling control unit automatically stopping or driving an engine in accordance with a state of the engine, the on/off state of the function selection switch detected by the first signal detection unit, and the operation state of the safety device detected by the second signal detection unit.
  • the engine idling control unit may automatically stop the engine if the function selection switch is turned on and the safety device is turned off in a state where the engine is driven, and may drive the engine if the function selection switch is turned on and the safety device is turned on in a state where the engine is stopped.
  • the safety device may be any one of a control lock device that is installed inside an operator's seat of the excavator and a safety lever.
  • a method of controlling engine idling for an excavator which includes detecting an on/off state of a function selection switch; detecting an operation state (on/off state) of a safety device; and automatically stopping or driving an engine in accordance with a state of the engine, the detected on/off state of the function selection switch, and the detected operation state of the safety device.
  • the step of automatically stopping or driving the engine may automatically stop the engine if the function selection switch is turned on and the safety device is turned off in a state where the engine is driven, and may drive the engine if the function selection switch is turned on and the safety device is turned on in a state where the engine is stopped.
  • the safety device may be any one of a control lock device that is installed inside an operator's seat of the excavator and a safety lever.
  • the state of the engine, the on/off state of the function selection switch, and the user's intention to work that has maximally been reflected can be recognized, and the fuel use and the production of carbon dioxide can be reduced through automatic stopping or driving of the engine in accordance with an operation state of a safety device having convenience. Further, the engine stop and start function can be implemented in accordance with the user's selection.
  • FIG. 1 is a block diagram illustrating the configuration of an engine idling control device for an excavator according to the present invention
  • FIG. 2 is a flowchart illustrating in order the operation of an engine idling control device for an excavator according to the present invention.
  • FIGS. 3A to 3C are graphs illustrating an engine stop state in controlling the stop and start of an engine according to the present invention as compared with the related art.
  • FIG. 1 is a block diagram illustrating the configuration of an engine idling control device for an excavator according to the present invention.
  • an engine idling control device for an excavator is configured to include a first signal detection unit 103 , a second signal detection unit 104 , and an engine idling control unit 105 .
  • the engine idling control device for an excavator includes a first signal detection unit 103 detecting an on/off state of a function selection switch 101 ; a second signal detection unit 104 detecting an operation state (on/off state) of a safety device 102 ; and an engine idling control unit 105 automatically stopping or driving an engine 106 in accordance with a state of the engine 106 , the on/off state of the function selection switch 101 detected by the first signal detection unit 103 , and the operation state of the safety device 102 detected by the second signal detection unit 104 .
  • the first signal detection unit 103 is electrically connected to the function selection switch 101 and the engine idling control unit 105 , and detects and transfers the on/off state of the function selection switch 101 , which is varied according to user's key operation, to the engine idling control unit 105 .
  • the second signal detection unit 104 is installed between the safety device 102 and the engine idling control unit 105 , and detects and transfers the operation state (on/off state) of the safety device 102 (e.g., a control lock device installed inside an operator's seat of the excavator or a safety lever) to the engine idling control unit 105 .
  • the safety device 102 e.g., a control lock device installed inside an operator's seat of the excavator or a safety lever
  • the engine idling control unit 105 is configured to automatically stop or drive the engine 106 in accordance with the state of the engine 106 , the on/off state of the function selection switch 101 detected by the first signal detection unit 103 , and the operation state of the safety device 102 detected by the second signal detection unit 104 .
  • the function selection switch 101 is turned off in a state where the engine is in a driving state, the engine stop and start function according to the present invention is not implemented, while if the function selection switch 101 is turned on, the engine stop and start function is implemented according to the user's operation state of the safety device 102 . That is, if the function selection switch 101 is turned on and the user turns off the safety device 102 , the engine 106 is automatically stopped.
  • the safety device 102 is turned on in the case where the function selection switch 101 is turned on in a state where the engine 106 is stopped, the engine stop and start function is implemented to drive the engine 106 .
  • FIG. 2 is a flowchart illustrating in order the operation of an engine idling control device for an excavator according to the present invention.
  • the first signal detection unit first detects the on/off state of the function selection switch (S 201 , S 202 , and S 205 ).
  • the first signal detection unit which is electrically connected to the function selection switch and the engine idling control unit, detects the on/off state of the function selection switch that is varied according to the user's key operation.
  • the detected on/off state of the function selection switch is transferred to the engine idling control unit.
  • the second signal detection unit detects the operation state (on/off state) of the safety device (S 203 and S 206 ).
  • the second signal detection unit which is installed between the safety device and the engine idling control unit, detects the operation state (on/off state) of the safety device.
  • the detected operation state of the safety device is transferred to the engine idling control unit.
  • the safety device may be, for example, a control lock device installed inside an operator's seat of the excavator or a safety lever.
  • the engine idling control unit automatically stops or drives the engine in accordance with the state of the engine, the on/off state of the function selection switch that is detected by the first signal detection unit, and the operation state of the safety device that is detected by the second signal detection unit (S 204 and S 207 ).
  • the engine stop and start function according to the present invention is not implemented.
  • the safety device is turned on in the case where the function selection switch is turned on in a state where the engine is stopped, i.e., if the user turns on the safety device, the engine stop and start function is implemented to start the engine driving.
  • the state of the engine, the on/off state of the function selection switch, and the user's intention to work that has maximally been reflected can be recognized, and the fuel use and the production of carbon dioxide can be reduced through automatic stopping or driving of the engine in accordance with an operation state of a safety device having convenience. Further, the engine stop and start function can be implemented in accordance with the user's selection.
  • FIGS. 3A to 3C are graphs illustrating an engine stop state in controlling the stop and start of an engine according to the present invention as compared with the related art.
  • FIG. 3A shows an engine stop operation in the related art, which lowers the engine revolution to the minimum revolution after a predetermined time elapses.
  • FIG. 3B shows another engine stop operation in the related art, which turns off the engine after a predetermined time elapses in accordance with the time set through the existing engine idling control technology or the time set by the operator.
  • the engine can be controlled to be stopped or driven at any time even if the time point where the operator commands stopping of the safety device differs.
  • the present invention can be used in the engine idling control device for an excavator. More specifically, the present invention can be used in the engine idling control device for an excavator, which can recognize the state of the engine, the on/off state of the function selection switch, and the user's intention to work that has maximally been reflected, reduce the fuel use and the production of carbon dioxide through automatic stopping or driving of the engine in accordance with the operation state of the safety device having convenience, and easily implement the engine stop and start function in accordance with the user's selection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Transportation (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Operation Control Of Excavators (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
US13/993,242 2010-12-16 2010-12-16 Engine idling control device of excavator and method thereof Abandoned US20130268166A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2010/009000 WO2012081745A1 (ko) 2010-12-16 2010-12-16 굴삭기의 엔진 공회전 제어 장치 및 그 방법

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Publication Number Publication Date
US20130268166A1 true US20130268166A1 (en) 2013-10-10

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US13/993,242 Abandoned US20130268166A1 (en) 2010-12-16 2010-12-16 Engine idling control device of excavator and method thereof

Country Status (6)

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US (1) US20130268166A1 (ko)
EP (1) EP2653705A4 (ko)
JP (1) JP2014501346A (ko)
KR (1) KR20130127467A (ko)
CN (1) CN103261638A (ko)
WO (1) WO2012081745A1 (ko)

Cited By (1)

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US20140303879A1 (en) * 2011-11-15 2014-10-09 Hitachi Construction Machinery Co., Ltd. Engine Control Device for Work Vehicle

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CN103362665A (zh) * 2013-08-01 2013-10-23 徐州重型机械有限公司 起重机、控制发动机熄火的方法及系统
CN106232966A (zh) * 2014-04-15 2016-12-14 沃尔沃建造设备有限公司 使用isg的发动机控制系统
DE102018112569A1 (de) * 2018-05-25 2019-11-28 Wacker Neuson Linz Gmbh Leerlaufabschaltautomatik für Arbeitsfahrzeuge

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Also Published As

Publication number Publication date
EP2653705A1 (en) 2013-10-23
EP2653705A4 (en) 2015-07-01
CN103261638A (zh) 2013-08-21
WO2012081745A1 (ko) 2012-06-21
JP2014501346A (ja) 2014-01-20
KR20130127467A (ko) 2013-11-22

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Legal Events

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AS Assignment

Owner name: VOLVO CONSTRUCTION EQUIPMENT AB, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, EUI-CHUL;LEE, CHUN-HAN;REEL/FRAME:030589/0543

Effective date: 20130610

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION