KR20020029833A - Pre-heating system for diesel engine - Google Patents

Pre-heating system for diesel engine Download PDF

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Publication number
KR20020029833A
KR20020029833A KR1020000060560A KR20000060560A KR20020029833A KR 20020029833 A KR20020029833 A KR 20020029833A KR 1020000060560 A KR1020000060560 A KR 1020000060560A KR 20000060560 A KR20000060560 A KR 20000060560A KR 20020029833 A KR20020029833 A KR 20020029833A
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South Korea
Prior art keywords
glow plug
engine
controller
diesel engine
heater
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KR1020000060560A
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Korean (ko)
Inventor
최영호
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이계안
현대자동차주식회사
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Priority to KR1020000060560A priority Critical patent/KR20020029833A/en
Publication of KR20020029833A publication Critical patent/KR20020029833A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
    • F02M31/13—Combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

PURPOSE: A preheating system of a diesel engine is provided to properly preheat a suction air to start an engine by selectively applying a glow plug method and an intake heater method according to the temperature in winter. CONSTITUTION: A glow plug(10) and an intake heater(14) are installed together at a diesel engine. A temperature sensor(16) detecting the temperature of a coolant and an engine speed sensor(18) detecting the engine RPM are connected to a receiving part of a controller. The glow plug and the intake heater are connected to a transmitting part of the controller. A relay(26) for the glow plug is connected between the glow plug and the transmitting part of the controller, and a relay(28) for the intake heater is connected between the intake heater and the transmitting part of the controller.

Description

디젤엔진의 예열 시스템{Pre-heating system for diesel engine}Pre-heating system for diesel engine

본 발명은 디젤엔진의 예열 시스템에 관한 것으로서, 더욱 상세하게는 시동키를 온시키는 동시에 냉각수온도를 감지하여, 글로우 플러그 또는 에어히터를 작동시킴으로써, 겨울철에도 디젤엔진의 시동이 용이하게 스타팅될 수 있도록 한 디젤엔진의 예열 시스템에 관한 것이다.The present invention relates to a preheating system of a diesel engine, and more particularly, by turning on a ignition key and sensing a coolant temperature at the same time, by operating a glow plug or an air heater, the diesel engine can be easily started even in winter. It relates to a preheating system of a diesel engine.

통상적으로 디젤엔진 차량의 점화는 가솔린엔진의 점화와 달리 흡입공기의 압축열로 연료가 착화연소되어 이루어지는 바, 디젤엔진에는 겨울철과 같은 한랭시에 엔진의 시동을 용이하게 걸리도록 흡입공기를 따뜻하게 하는 예열장치가 포함되어 있다.In general, the ignition of a diesel engine vehicle is different from the ignition of a gasoline engine, in which fuel is ignited and burned by the heat of compression of the intake air. Preheater is included.

대개, 상기 디젤엔진의 예열장치에는 글로우 플러그 방식과 흡기히터 방식이 있는데, 상기 글로 플러그 방식은 배터리를 전원으로 발열하는 글로 플러그에 의하여 엔진의 연소실로 유입된 공기가 가열되도록 한 방식이고, 상기 흡기히터 방식은 엔진의 흡기메니폴드에 흡기히터를 설치하고 연료장치로부터 연료를 끌어내어 흡기히터로 보내 착화연소시킴으로써, 흡입공기를 가열하는 방식이다.In general, the preheating device of the diesel engine includes a glow plug method and an intake heater method, wherein the glow plug method is a method in which the air introduced into the combustion chamber of the engine is heated by a glow plug that generates battery power. The heater method is a method of heating intake air by installing an intake heater in the intake manifold of the engine, drawing fuel from the fuel device, and sending the fuel to the intake heater for ignition combustion.

그러나, 현재 디젤차량, 특히 군용차량은 엔진의 시동을 위한 예열장치로서, 글로 플러그 방식 또는 흡기히터 방식중 하나를 채택하고 있어서, 겨울철에 시동을 위한 착화 조건이 형성되지 않는 단점이 있다.However, current diesel vehicles, particularly military vehicles, as a preheating device for starting the engine, adopts a glow plug method or an intake heater method, and thus there is a disadvantage in that ignition conditions for starting in winter are not formed.

즉, 글로우 플러그가 적용된 엔진은 초폭발생은 유리하지만, 일정시간 경과후 그 역할이 미미하여 엔진이 정지되는 단점이 있다.In other words, the engine with the glow plug is advantageously generated, but after a certain period of time has a disadvantage that the engine is stopped because its role is insignificant.

또한, 상기 흡기히터 방식만으로는 겨울철 시동성에 문제가 있는 바, 흡기히터의 방열량을 늘리면 개선되겠지만, 이는 히터의 내구성이 문제를 일으키게 되는 문제점이 있다.In addition, there is a problem in the startability in winter only by the intake heater method, it will be improved by increasing the heat dissipation amount of the intake heater, this is a problem that the durability of the heater causes a problem.

따라서, 본 발명은 상기와 같은 점을 감안하여, 시동을 위한 동절기 주변 온도를 수온으로 감지하고, 이 감지된 온도에 따라 흡기히터 방식 또는 글로우 플러그 방식을 선택적으로 적용하여 엔진의 시동을 위한 흡기의 예열을 유효 적절하게 실시함으로써, 겨울철 엔진 냉시동성을 향상시킬 수 있도록 한 디젤엔진의 예열 시스템을 제공하는데 그 목적이 있다.Therefore, in view of the above, the present invention senses the winter ambient temperature for starting the water temperature, and selectively applies the intake air heater or glow plug method according to the detected temperature of the intake air for starting the engine It is an object of the present invention to provide a preheating system of a diesel engine that can effectively improve the engine cold startability in winter by performing preheating effectively and properly.

도 1은 본 발명에 따른 디젤엔진의 예열 시스템을 나타내는 시스템도,1 is a system diagram showing a preheating system of a diesel engine according to the present invention;

도 2는 본 발명에 따른 디젤엔진의 예열 시스템의 순서도.2 is a flow chart of a preheating system of a diesel engine according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 글로우 플러그12 : 콘트롤러10: glow plug 12: controller

14 : 흡기 히터16 : 수온센서14 Intake Heater 16 Water Temperature Sensor

18 : 엔진 스피드 센서20 : 배터리18: engine speed sensor 20: battery

22 : 시동스위치24 : 엔진22: start switch 24: engine

26 : 글로우 플러그 릴레이28 : 흡기히터 릴레이26: glow plug relay 28: intake heater relay

이하, 첨부도면을 참조로 본 발명을 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

상기한 목적을 달성하기 위한 본 발명의 시스템은: 디젤엔진(24)에 글로우 플러그(10)와 흡기히터(14)를 동시에 설치하고, 냉각수의 온도를 감지하는 수온센서(16)와 엔진 회전수를 감지하는 엔진 스피드 센서(18)를 콘트롤러(12)의 수신부에 연결하며, 상기 글로우 플러그(10)와 흡기히터(14)를 콘트롤러(12)의 송신부에 연결하여서 된 것을 특징으로 한다.The system of the present invention for achieving the above object is: at the same time to install the glow plug 10 and the intake heater 14 in the diesel engine 24, the water temperature sensor 16 and the engine speed to sense the temperature of the cooling water It is characterized in that the engine speed sensor 18 for detecting the connection to the receiving unit of the controller 12, the glow plug 10 and the intake heater 14 is connected to the transmitting unit of the controller 12.

상기 글로우 플러그(10)와 콘트롤러(12)의 송신부, 흡기히터(14)와 콘트롤러(12)의 송신부 사이에는 각각 글로우 플러그용 릴레이(26)와 흡기히터용 릴레이(28)가 연결된 것을 특징으로 한다.A glow plug relay 26 and an intake heater relay 28 are connected between the glow plug 10 and the transmitter of the controller 12, the intake heater 14, and the transmitter of the controller 12, respectively. .

여기서 본 발명을 실시예로서, 첨부한 도면을 참조로 더욱 상세하게 설명하면 다음과 같다.Herein, the present invention will be described in more detail with reference to the accompanying drawings.

첨부한 도 1은 본 발명에 따른 디젤엔진의 예열 시스템을 나타내는 개략도로서, 디젤엔진(24)에 글로우 플러그(10)와 흡기히터(14)가 동시에 설치된다.1 is a schematic view showing a preheating system of a diesel engine according to the present invention, in which a glow plug 10 and an intake heater 14 are simultaneously installed in a diesel engine 24.

이때, 수온센서(16)를 냉각수의 온도를 감지할 수 있는 위치에 설치하고, 엔진 회전수를 감지하는 위치에 엔진 스피드 센서(18)를 설치하여, 각각 콘트롤러(12)의 수신부에 연결한다.At this time, the water temperature sensor 16 is installed at a position capable of sensing the temperature of the coolant, and the engine speed sensor 18 is installed at the position at which the engine speed is sensed, and connected to the receiver of the controller 12, respectively.

또한, 상기 콘트롤러(12)의 송신부는 글로우 플러그(10) 및 흡기히터(14)와 연결시킴으로써, 콘트롤러(12)의 전류신호가 글로우 플러그(10)와 흡기히터(14)에 보내지게 된다.In addition, the transmitter of the controller 12 is connected to the glow plug 10 and the intake heater 14, the current signal of the controller 12 is sent to the glow plug 10 and the intake heater 14.

한편, 상기 콘트롤러(12)의 송신부와 글로우 플러그(10), 콘트롤러(12)의 송신부와 흡기히터(14) 사이에는 각각 글로우 플러그용 릴레이(26)와 흡기히터용 릴레이(28)가 연결된다.Meanwhile, a glow plug relay 26 and an intake heater relay 28 are connected between the transmitter 12 of the controller 12 and the glow plug 10, the transmitter 12 of the controller 12, and the intake heater 14, respectively.

또한, 배터리(20)의 (+)전원쪽에는 시동스위치(22)가 연결되는 바, 시동스위치(22)의 온(ON)과 동시에 배터리(20)의 (+)전류가 콘트롤러(12)로 흐르게 된다.In addition, the start switch 22 is connected to the (+) power side of the battery 20, and at the same time the start switch 22 is turned on, the positive current of the battery 20 goes to the controller 12. Will flow.

여기서, 상기와 같은 구성으로 이루어진 본 발명에 따른 디젤엔진의 예열 시스템의 작동관계를 첨부한 도 2를 참조로 설명하면 다음과 같다.Here, the operation of the preheating system of the diesel engine according to the present invention having the above configuration will be described with reference to FIG. 2.

상기 시동스위치(22)를 온시키는 단계를 시작으로, 상기 수온센서(16)의 냉각수 온도 감지값이 콘트롤러(12)에 입력된다.Starting with the step of turning on the start switch 22, the coolant temperature sensing value of the water temperature sensor 16 is input to the controller 12.

상기 수온센서(16)의 냉각수 감지온도가 -25℃ 이상이면 콘트롤러(12)에서는 글로우 플러그(10)에 전류신호를 보내어 글로우 플러그(10)가 예열되도록 하고, 냉각수 감지온도가 -25℃ 이하이면 콘트롤러(12)에서는 흡기히터(14)에 전류신호를 보내어 흡기히터(14)가 작동되도록 한다.When the coolant detection temperature of the water temperature sensor 16 is -25 ° C or higher, the controller 12 sends a current signal to the glow plug 10 so that the glow plug 10 is preheated, and when the coolant detection temperature is -25 ° C or lower The controller 12 sends a current signal to the intake heater 14 so that the intake heater 14 is operated.

이때, 상기 글로우 플러그(10)가 예열되는 경우, 그 예열되는 시간이 15초 이상이면 콘트롤러(12)에서 전류신호를 차단하여 글로우 플러그(10)가 오프(OFFF)되도록 한다.At this time, when the glow plug 10 is preheated, when the preheating time is 15 seconds or more, the controller 12 blocks the current signal so that the glow plug 10 is turned off (OFFF).

다음으로, 상기 글로우 플러그(10)에 의하여 흡기가 가열되면서, 엔진 크랭킹이 일어나는 바, 엔진의 크랭킹 회전수를 상기 엔진스피드센서(18)에 감지하여 콘트롤러(12)에 신호를 보내게 된다.Next, as the intake air is heated by the glow plug 10, the engine cranking occurs, and the engine speed sensor 18 detects the engine cranking speed and sends a signal to the controller 12. .

이때, 엔진 크랭킹 회전수가 소정의 회전수보다 작으면, 콘트롤러(12)에서 흡기히터(14)에 작동신호를 보내게 되고, 흡기히터(14)의 흡기에 대한 가열이 60초 이상이 되어 엔진스피드센서(18)에서 엔진의 크랭킹 회전수를 기준치 이상으로 감지하면, 이 감지신호를 받은 콘트롤러(12)에서는 엔진의 시동이 온(ON)상태로 인식하여 흡기히터(14)에 전류신호를 단락시키게 된다.At this time, if the engine cranking rotation speed is smaller than the predetermined rotation speed, the controller 12 sends an operation signal to the intake air heater 14, and the heating of the intake air of the intake air heater 14 becomes 60 seconds or more and the engine When the speed sensor 18 detects the engine's cranking speed more than a reference value, the controller 12 that receives the detection signal recognizes that the engine is in an ON state and supplies a current signal to the intake air heater 14. Shorted.

한편, 상기 냉각수 감지온도가 -25℃ 이하이면 콘트롤러(12)에서는 흡기히터(14)에 전류신호를 보내어 흡기히터(14)가 작동되도록 하는 바, 이는 외부온도가 낮은상태로서, 곧바로 상기 콘트롤러(12)에서 흡기히터(14)에 작동신호를 보내게 된다.On the other hand, when the coolant detection temperature is -25 ° C or less, the controller 12 sends a current signal to the intake air heater 14 so that the intake air heater 14 is operated. This is a state in which the external temperature is low. In 12) sends an operation signal to the intake heater (14).

그 다음으로는 상술한 바와 마찬가지로 흡기히터(14)의 흡기에 대한 가열이 60초 이상이 되어 엔진스피드센서(18)에서 엔진의 크랭킹 회전수를 기준치 이상으로 감지하면, 이 감지신호를 받은 콘트롤러(12)에서는 엔진의 시동이 온(ON)상태로 인식하여 흡기히터(14)에 전류신호를 단락시키게 된다.Next, as described above, when the heating of the intake air of the intake air heater 14 is 60 seconds or more, and the engine speed sensor 18 detects the cranking speed of the engine to be higher than the reference value, the controller receives the detection signal. At 12, the engine is recognized to be in an ON state to short-circuit the current signal to the intake heater 14.

이상에서 본 바와 같이, 본 발명에 따른 디젤엔진의 예열 시스템에 의하면, 디젤엔진의 시동을 위한 동절기 주변 온도를 수온으로 감지하고, 이 감지된 온도에 따라 흡기히터 방식 또는 글로우 플러그 방식을 선택적으로 적용하여 엔진의 시동을 위한 흡기의 예열을 유효 적절하게 실시함으로써, 겨울철 엔진 냉시동성을 향상시킬 수 있는 장점이 있다.As described above, according to the preheating system of the diesel engine according to the present invention, the winter ambient temperature for the start of the diesel engine is sensed by the water temperature, and the intake heater method or the glow plug method is selectively applied according to the detected temperature. Therefore, by effectively preheating the intake air for starting the engine, there is an advantage of improving the engine cold startability in winter.

특히, 디젤엔진을 주로 사용하고 겨울철 온도가 낮은 지역에서 운용되는 군용차량에 본 발명의 예열 시스템을 적용하면, 겨울철 엔진 냉시동성을 향상시킬 수 있고, 정부의 군용차량 사업에 용이하게 대응할 수 있다.In particular, when the preheating system of the present invention is applied to a military vehicle mainly using a diesel engine and operated in an area having low winter temperatures, it is possible to improve the winter engine cold start performance and to easily cope with the government military vehicle business.

Claims (2)

디젤엔진의 예열 시스템에 있어서,In the preheating system of a diesel engine, 상기 디젤엔진(24)에 글로우 플러그(10)와 흡기히터(14)를 동시에 설치하고, 냉각수의 온도를 감지하는 수온센서(16)와 엔진 회전수를 감지하는 엔진 스피드 센서(18)를 콘트롤러(12)의 수신부에 연결하며, 상기 글로우 플러그(10)와 흡기히터(14)를 콘트롤러(12)의 송신부에 연결하여서 된 것을 특징으로 하는 디젤엔진의 예열 시스템.The glow plug 10 and the intake heater 14 are installed at the same time in the diesel engine 24, and the water temperature sensor 16 for detecting the temperature of the coolant and the engine speed sensor 18 for detecting the engine speed are controlled by the controller ( And a glow plug (10) and an intake heater (14) connected to the transmitter of the controller (12). 제 1 항에 있어서, 상기 글로우 플러그(10)와 콘트롤러(12)의 송신부, 흡기히터(14)와 콘트롤러(12)의 송신부 사이에는 각각 글로우 플러그용 릴레이(26)와 흡기히터용 릴레이(28)가 연결된 것을 특징으로 하는 디젤엔진의 예열 시스템.The glow plug relay 26 and the intake heater relay 28 between the glow plug 10 and the transmitter 12, the intake heater 14 and the transmitter 12, respectively. Preheating system of the diesel engine, characterized in that connected.
KR1020000060560A 2000-10-14 2000-10-14 Pre-heating system for diesel engine KR20020029833A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7464748B2 (en) 2003-12-05 2008-12-16 Hyundai Motor Company Intercooler system and intake air cooling method
US20130152894A1 (en) * 2011-12-14 2013-06-20 Ford Global Technologies, Llc Stop/start engine glow plug heater control
CN114320702A (en) * 2021-12-17 2022-04-12 中国北方发动机研究所(天津) Air inlet heating control method for diesel engine
CN115030843A (en) * 2022-06-22 2022-09-09 王剑峰 Heating system for diesel vehicle

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JPS59170470A (en) * 1983-03-18 1984-09-26 Hitachi Ltd Rapid preheating system for diesel engine
JPS60116859A (en) * 1983-11-28 1985-06-24 Toyota Motor Corp Method of improving starting performance of diesel engine
JPS6282272A (en) * 1985-10-04 1987-04-15 Ngk Spark Plug Co Ltd Auxiliary device for starting engine
JPH02161171A (en) * 1988-12-13 1990-06-21 Aisin Seiki Co Ltd Intake warming device of diesel engine
KR950014572A (en) * 1993-11-09 1995-06-16 석진철 Automatic preheating device and control method of diesel engine

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Publication number Priority date Publication date Assignee Title
JPS59170470A (en) * 1983-03-18 1984-09-26 Hitachi Ltd Rapid preheating system for diesel engine
JPS60116859A (en) * 1983-11-28 1985-06-24 Toyota Motor Corp Method of improving starting performance of diesel engine
JPS6282272A (en) * 1985-10-04 1987-04-15 Ngk Spark Plug Co Ltd Auxiliary device for starting engine
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7464748B2 (en) 2003-12-05 2008-12-16 Hyundai Motor Company Intercooler system and intake air cooling method
US20130152894A1 (en) * 2011-12-14 2013-06-20 Ford Global Technologies, Llc Stop/start engine glow plug heater control
CN114320702A (en) * 2021-12-17 2022-04-12 中国北方发动机研究所(天津) Air inlet heating control method for diesel engine
CN114320702B (en) * 2021-12-17 2023-05-16 中国北方发动机研究所(天津) Air inlet heating control method for diesel engine
CN115030843A (en) * 2022-06-22 2022-09-09 王剑峰 Heating system for diesel vehicle

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