KR100394796B1 - Method for controlling burning in a motor vehicle using LPG as fuel - Google Patents
Method for controlling burning in a motor vehicle using LPG as fuel Download PDFInfo
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- KR100394796B1 KR100394796B1 KR10-2001-0020921A KR20010020921A KR100394796B1 KR 100394796 B1 KR100394796 B1 KR 100394796B1 KR 20010020921 A KR20010020921 A KR 20010020921A KR 100394796 B1 KR100394796 B1 KR 100394796B1
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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
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/021—Control of components of the fuel supply system
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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
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
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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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
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- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
본 발명은 액화석유가스 차량의 엔진의 정지시 연료 공급관에 남아있는 연료가 완전히 연소된 다음 엔진의 시동이 꺼지도록 엔진의 연소를 제어하는 방법에 관한 것이다. 본 발명의 연소 제어 방법은 키셋이 오프 상태로 전환되면, 연료공급 스위치가 온 상태인지를 판단하는 단계; 연료 공급 스위치가 오프상태이면, 제 2 전원공급 스위치가 온되어 제 2 전원공급스위치를 통해 배터리로부터 제어부로 전원이 인가되는 단계; 제어부가 엔진을 작동시켜 연료공급관에 남아 있는 연료를 완전히 연소시키는 단계; 연료가 완전히 연소되면 엔진의 회전수가 "0"인지를 판단하는 단계; 및 엔진의 회전수가 "0"이면 제 2 전원 공급 스위치가 오프되는 단계로 이루어진다.The present invention relates to a method of controlling the combustion of an engine such that the fuel remaining in the fuel supply pipe when the engine of the liquefied petroleum gas vehicle is completely burned and then the engine is turned off. Combustion control method of the present invention, if the keyset is turned off, determining whether the fuel supply switch is on; If the fuel supply switch is in an off state, turning on the second power supply switch to supply power from the battery to the controller through the second power supply switch; Controlling the engine to completely burn fuel remaining in the fuel supply pipe; Determining whether the engine speed is "0" when the fuel is completely burned; And the second power supply switch is turned off when the engine speed is "0".
Description
본 발명은 액화석유가스(Liquid Petroleum Gas; LPG)를 연료로 사용하는 차량의 키셋이 오프 단자로 전환되었을 때, 연료 공급관에 남아있는 연료가 완전히 연소된 다음 엔진의 시동이 꺼지도록 엔진의 연소를 제어하는 방법에 관한 것이다.According to the present invention, when a keyset of a vehicle that uses Liquid Petroleum Gas (LPG) as a fuel is switched to the off terminal, combustion of the engine is stopped so that the fuel remaining in the fuel supply pipe is completely burned and then the engine is turned off. To control.
액화석유가스를 연료로 사용하는 자동차에 있어서, 연료인 액화석유가스를 엔진으로 공급하는 연료공급장치는, 도 1에 도시된 바와 같이, 액화석유가스가 저장되는 연료용기(1), 한 쌍의 연료공급관(3), 기화기(5), 혼합기 및 필터를 포함하고 있다.In an automobile using liquefied petroleum gas as a fuel, a fuel supply device for supplying liquefied petroleum gas as a fuel to an engine includes a fuel container (1) in which liquefied petroleum gas is stored, as shown in FIG. It includes a fuel supply pipe (3), a vaporizer (5), a mixer and a filter.
연료용기(1)에 저장된 액체 상태의 연료는 연료공급관(2)을 통해 기화기(5)로 공급된다. 기화기(5)에서 기화된 연료는 혼합기에서 공기와 혼합되어 엔진(6)으로 공급되고, 엔진(6)에서 연소된다.The liquid fuel stored in the fuel container 1 is supplied to the vaporizer 5 through the fuel supply pipe 2. The fuel vaporized in the vaporizer 5 is mixed with air in the mixer, fed to the engine 6, and burned in the engine 6.
연료공급관(3)은 연료용기의 상부와 연결되어 있으며, 냉각수의 온도가 낮아 연료공급관(2)을 통해 공급되는 액체 상태의 연료가 기화기에서 제대로 기화되지 못할 때, 기체 상태의 연료를 기화기(5)로 공급한다. 필터(4)는 저장용기로부터 공급되는 연료에 함유된 불순물을 제거한다.The fuel supply pipe 3 is connected to the upper part of the fuel container, and when the liquid fuel supplied through the fuel supply pipe 2 is not properly vaporized in the vaporizer when the temperature of the cooling water is low, the gaseous fuel is vaporized (5). ). The filter 4 removes impurities contained in the fuel supplied from the storage container.
액화석유가스를 연료로 사용하는 이러한 자동차에 있어서, 운행을 마치고 엔진을 정지하면 연료공급관 내에 연료가 남게된다. 그런데, 여름철과 같이 외기가 너무 높을 경우 외기의 온도에 의해 연료공급관에 남아 있는 가스가 팽창되어 폭발할 위험이 있고, 겨울과 같이 외기가 너무 낮으면 연료공급관에 남아 있는 가스가 얼어붙어 관을 막게된다.In such a vehicle using liquefied petroleum gas as fuel, fuel is left in the fuel supply pipe when the engine is stopped after the operation. However, if the outside air is too high, such as in summer, the gas remaining in the fuel supply pipe may expand and explode due to the temperature of the outside air. If the outside air is too low, such as winter, the gas remaining in the fuel supply pipe may freeze and block the pipe. do.
이를 방지하기 위해, 운전자는 엔진의 시동을 끄기 전에 연료 공급관에 남아 있는 가스를 모두 제거하는 작업을 해야한다. 즉, 연료공급관에는 연료의 공급을 단속하기 위한 밸브들이 설치되어 있고, 이 밸브들을 개폐하기 위한 스위치가 운전석 전면의 인스트루먼트 패널에 설치되어 있다.To prevent this, the operator must work to remove any gas remaining in the fuel supply line before turning off the engine. That is, the fuel supply pipe is provided with valves for controlling the supply of fuel, and a switch for opening and closing the valves is provided in the instrument panel on the front of the driver's seat.
자동차의 운행을 마친 다음, 운전자는 개폐 스위치를 조작하여 연료공급관에 설치된 밸브를 폐쇄한다. 이에 따라 연료 용기로부터 연료공급관으로 연료가 공급되는 것이 차단된다. 이 상태에서 연료공급관에 남아있는 연료들이 모두 엔진으로 공급되어 연소된 다음, 운전자는 시동키를 오프(Off) 상태로 한다. 이와 같이 연료공급관에 남아 있는 연료를 완전히 연소시키는 데 대략 30초 내지 60초의 시간이 소모된다.After driving the car, the driver operates the on / off switch to close the valve installed in the fuel supply line. As a result, the supply of fuel from the fuel container to the fuel supply pipe is blocked. In this state, all fuel remaining in the fuel supply pipe is supplied to the engine and combusted, and then the driver turns off the ignition key. As such, it takes about 30 to 60 seconds to completely burn the fuel remaining in the fuel supply pipe.
그러나, 이와 같이 자동차의 운행을 완료한 다음 연료공급관에 남아 있는 연료를 완전히 연소시키기 위해 스위치를 조작하고 소정시간 동안 기다리는 것은 운전자에게 너무 번거로운 일이다.However, it is too cumbersome for the driver to complete the operation of the vehicle and then operate the switch and wait for a predetermined time to completely burn the fuel remaining in the fuel supply pipe.
본 발명은, 상기와 같은 점을 감안하여 안출된 것으로, 키셋이 오프 단자로 전환되면, 자동으로 연료공급관에 남아 있는 연료를 완전히 연소시키는 방법을 제공하는데 그 목적이 있다.The present invention has been made in view of the above, and an object thereof is to provide a method of completely burning fuel remaining in a fuel supply pipe when a keyset is switched to an off terminal.
도 1은 액화석유가스 차량의 연료 공급 장치를 개략적으로 도시한 도면.1 is a view schematically showing a fuel supply device of a liquefied petroleum gas vehicle;
도 2는 본 발명의 액화석유가스 차량의 연소 제어 방법을 설명하기 위한 흐름도.2 is a flowchart illustrating a combustion control method for a liquefied petroleum gas vehicle of the present invention.
도 3은 본 발명의 액화석유가스 차량의 연소 제어 방법을 실행하기 위한 장치의 구성도이다.3 is a block diagram of an apparatus for executing a combustion control method for a liquefied petroleum gas vehicle of the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
2 : 키셋 3 : 배터리2: keyset 3: battery
4 : 연소제어부 5 : 제어부4: combustion control unit 5: control unit
6 : 제 2전원공급스위치 7 : 엔진6: second power supply switch 7: engine
상기의 목적을 달성하기 위하여 본 발명에 따른 액화석유가스를 연료로 사용하는 자동차의 연소 제어 방법은 운전자가 키셋의 오프단자로 전환하면, 연료공급 스위치가 온 상태인지를 판단하는 단계; 연료 공급 스위치가 온 상태가 아니면 제 2 전원공급 스위치가 온되어 제 2 전원공급스위치를 통해 배터리로부터 제어부로 전원이 인가되는 단계; 제어부가 엔진을 작동시켜 연료공급관에 남아 있는 연료를 완전히 연소시키는 단계; 연료가 완전히 연소되면 엔진의 회전수가 "0"인지를 판단하는 단계; 및 엔진의 회전수가 "0"이면 제 2 전원 공급 스위치가 오프되는 단계로 이루어진다.In order to achieve the above object, a combustion control method for a vehicle using liquefied petroleum gas according to the present invention includes determining whether a fuel supply switch is turned on when a driver switches to an off terminal of a keyset; If the fuel supply switch is not in an on state, the second power supply switch is turned on to supply power from the battery to the controller through the second power supply switch; Controlling the engine to completely burn fuel remaining in the fuel supply pipe; Determining whether the engine speed is "0" when the fuel is completely burned; And the second power supply switch is turned off when the engine speed is "0".
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 액화석유가스를 연료로 사용하는 자동차의 연소 제어 방법을 설명하기 위한 흐름도이다.2 is a flowchart illustrating a combustion control method for a vehicle using liquefied petroleum gas as a fuel according to an embodiment of the present invention.
도 3은 본 발명의 연소 제어 방법을 실행하기 위한 장치의 개략적인 구성도로서, 키셋(2)과, 키셋(2)의 온 단자와 접속된 제어부(5)와, 제어부(5)의 제어 신호에 의해 작동하는 엔진(7)과, 엔진(7)에 연료를 공급하는 액화석유가스 저장탱크(10)와, 액화석유가스 저장탱크(10)로부터 엔진(7)으로 연료의 공급을 단속하는 밸브(9)와, 밸브(9)를 제어하는 연료공급스위치(8)와, 제어부(5)에 전원을 공급하는 배터리(3)와, 배터리(3)와 제어부(5)사이에 별도로 부착된 연소 제어부(4)와, 제 2차 연소 제어부(4)에 의해 온, 오프 변환되는 제 2 전원공급스위치(6)로 구성되며, 제 2 전원공급스위치(6)에 의해 자동차의 운행이 정지된 후에 별도로 제어부(5)에 전원을 공급하여 연료공급관에 남아 있는 연료를 완전히 연소한다.3 is a schematic configuration diagram of an apparatus for executing the combustion control method of the present invention, in which the control unit 5 connected to the keyset 2, the on-terminal of the keyset 2, and the control signal of the control unit 5 are shown. Valve for controlling fuel supply to the engine 7 from the engine 7 operated by the engine, the liquefied petroleum gas storage tank 10 for supplying fuel to the engine 7, and the liquefied petroleum gas storage tank 10. (9), a fuel supply switch (8) for controlling the valve (9), a battery (3) for supplying power to the controller (5), and combustion separately attached between the battery (3) and the controller (5). And a second power supply switch 6 that is turned on and off by the second combustion control unit 4 and after the driving of the vehicle is stopped by the second power supply switch 6. Separately, power is supplied to the control unit 5 to completely burn fuel remaining in the fuel supply pipe.
우선, 운전자가 키셋(2)의 오프단자로 전환하면, 연소 제어부(4)는 연료공급스위치(8)가 온(ON)상태인지를 판단한다 (S1). 여기서, 연료공급스위치(8)가 온상태이면 자동차의 엔진이 정지되지 않은 상태를 의미하며, 이때 자동차는 정상적인 제어를 수행한다. 한편, 연료공급스위치(8)가 오프상태이면 엔진(7)으로 연료의 공급이 차단되어 엔진(7)이 정지된 상태이므로 연료공급관 내에 여분의 연료가 남아 있게 된다.First, when the driver switches to the off terminal of the key set 2, the combustion control unit 4 determines whether the fuel supply switch 8 is in an ON state (S1). Here, when the fuel supply switch 8 is on, it means a state in which the engine of the vehicle is not stopped. In this case, the vehicle performs normal control. On the other hand, when the fuel supply switch 8 is in the off state, the supply of fuel to the engine 7 is cut off and the engine 7 is stopped, so that extra fuel remains in the fuel supply pipe.
다음, 연료공급스위치(8)가 온상태가 아니면, 즉, 오프상태이면 연소 제어부(4)는 제 2전원공급스위치를 온시킨다(S2). 연소 제어부(4)에 의해 제 2 전원공급스위치(6)가 온되면 제어부(5)에 전원이 공급되고, 제어부(5)는 엔진을 작동시켜 연료공급관에 잔류된 여분의 연료를 완전히 연소한다(S3).Next, when the fuel supply switch 8 is not in an on state, that is, in an off state, the combustion control unit 4 turns on the second power supply switch (S2). When the second power supply switch 6 is turned on by the combustion control unit 4, power is supplied to the control unit 5, and the control unit 5 operates the engine to completely burn excess fuel remaining in the fuel supply pipe ( S3).
다음, 연소 제어부(4)는 엔진(7)의 회전수가 "0"인지를 판단하여(S4), 엔진의 회전수가 "0"이 되면 연소 제어부(4)는 제 2 전원공급스위치(6)를 오프시켜(S5) 제어부(5) 내로의 전원공급을 차단하여 배터리(3)의 방전을 막는다.Next, the combustion control unit 4 determines whether the rotation speed of the engine 7 is "0" (S4), and when the rotation speed of the engine reaches "0", the combustion control unit 4 opens the second power supply switch 6. OFF (S5) to cut off the power supply to the control unit 5 to prevent the discharge of the battery (3).
상기된 바와 같이, 본 발명의 일 실시예에 따른 액화석유가스를 연료로 사용하는 차량의 연소 제어 방법은, 엔진의 정지시 자동으로 연료공급관에 남아 있는 연료를 완전히 연소시킴으로써, 운전자가 자동차의 운행을 완료한 다음 연료공급관에 남아 있는 연료를 완전히 연소시키기 위해 스위치를 조작하고 소정 시간 동안 기다리지 않아도 되는 장점이 있다.As described above, the combustion control method of a vehicle using liquefied petroleum gas as a fuel according to an embodiment of the present invention, by the driver completely burns the fuel remaining in the fuel supply pipe automatically when the engine stops, There is an advantage of not having to wait for a predetermined time after operating the switch to completely burn the remaining fuel in the fuel supply pipe.
이상에서는, 본 발명을 특정의 바람직한 실시예에 대해 도시하고 설명하였다. 그러나, 본 발명은 상술한 실시예에만 한정되는 것은 아니며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면, 이하의 특허청구범위에 기재된 본 발명의 기술적 사상의 요지를 벗어남이 없이 얼마든지 다양하게 변결실시할 수 있을 것이다.In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiment, and those skilled in the art to which the present invention pertains can make any number without departing from the gist of the technical idea of the present invention described in the claims below. Various modifications can be made.
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0020921A KR100394796B1 (en) | 2001-04-18 | 2001-04-18 | Method for controlling burning in a motor vehicle using LPG as fuel |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2001-0020921A KR100394796B1 (en) | 2001-04-18 | 2001-04-18 | Method for controlling burning in a motor vehicle using LPG as fuel |
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| Publication Number | Publication Date |
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| KR20020080985A KR20020080985A (en) | 2002-10-26 |
| KR100394796B1 true KR100394796B1 (en) | 2003-08-14 |
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