KR940015220A - Fuel pressure control method and engine thereof when idling engine - Google Patents

Fuel pressure control method and engine thereof when idling engine Download PDF

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Publication number
KR940015220A
KR940015220A KR1019920026955A KR920026955A KR940015220A KR 940015220 A KR940015220 A KR 940015220A KR 1019920026955 A KR1019920026955 A KR 1019920026955A KR 920026955 A KR920026955 A KR 920026955A KR 940015220 A KR940015220 A KR 940015220A
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KR
South Korea
Prior art keywords
fuel
engine
injector
idle
fuel pressure
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Application number
KR1019920026955A
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Korean (ko)
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KR960004279B1 (en
Inventor
이우직
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전성원
현대자동차 주식회사
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Priority to KR1019920026955A priority Critical patent/KR960004279B1/en
Publication of KR940015220A publication Critical patent/KR940015220A/en
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Publication of KR960004279B1 publication Critical patent/KR960004279B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D1/00Controlling fuel-injection pumps, e.g. of high pressure injection type

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

엔진으로 공급되는 공기량을 조절하는 스로틀(13)의 위치를 감지하여 엔진의 공회전 상태여부를 판단하는 스로틀 위치센서와, 흡입되는 공기를 각각의 실린더에 공급하는 플레넘 챔버(14)와, 각각의 실린더에 연료를 분사하는 인젝터(16)와, 상기 각각의 센서로 부터 공급되는 신호를 처리 제어하여 적절한 엔진 작동상태를 이루게 하는 전자제어장치(23)로 구성되는 엔진에 있어서, 상기 스로틀 위치센서(22)가 엔진이 공회전 상태임을 판정할시 상기 플레넘 챔버(14)로 계속해서 직접 연료를 분사하여 플레넘 챔버(14)내에서 공기와 연료의 혼합이 균일하게 이루어지도록 상기 플레넘 챔버(14)에 마련된 공회전용 인젝터(17)와, 상기 인젝터(17)로 공급되는 연료의 압력을 감지하는 연료압 측정센서(18)와, 상기 전자제어장치(23)의 지시에 따라 라인(20)을 통해 연료펌프로 부터 공급되는 연료를 상기 인젝터(17)와 라인(21)을 통해 연료펌프로 선택적으로 송출하거나, 또는 일부는 인젝터(17)로 공급하고 일부는 연료탱크는 귀환시켜 요구되는 인젝션 압력이 되도록 조절하는 부하제어 3방향 밸브(19)로 구성되는 것을 특징으로 하는 엔진 공회전시의 연료압 제어시스템.A throttle position sensor that senses the position of the throttle 13 for adjusting the amount of air supplied to the engine and determines whether the engine is idle, a plenum chamber 14 for supplying inhaled air to each cylinder, and In an engine composed of an injector 16 for injecting fuel into a cylinder and an electronic control unit 23 for processing and controlling signals supplied from the respective sensors to achieve an appropriate engine operating state, the throttle position sensor ( When 22 determines that the engine is idle, the plenum chamber 14 continues to inject fuel directly into the plenum chamber 14 so that air and fuel are mixed uniformly in the plenum chamber 14. The idler injector (17) provided in the < RTI ID = 0.0 >), a fuel pressure measurement sensor (18) for detecting the pressure of the fuel supplied to the injector (17), < / RTI > Kite through The fuel supplied from the pump is selectively discharged through the injector 17 and the line 21 to the fuel pump, or a part is supplied to the injector 17 and a part of the fuel tank is returned to the required injection pressure. A fuel pressure control system at engine idle, characterized in that the load control three-way valve (19) to adjust.

Description

엔진 공회전시 연료압 제어방법 및 그 장치Fuel pressure control method and engine thereof when idling engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 연료압 제어장치의 구성을 나타내는 개략도, 제2도는 본 발명에 따른 연료압 제어장치의 작동단계를 나타내는 플로우 챠트.1 is a schematic diagram showing a configuration of a fuel pressure control device according to the present invention, and FIG. 2 is a flow chart showing an operation step of the fuel pressure control device according to the present invention.

Claims (5)

엔진으로 공급되는 공기량을 조절하는 스로틀(13)의 위치를 감지하여 엔지의 공회전 상태여부를 판단하는 스로틀 위치센서와, 흡입되는 공기를 각각의 실린더에 공급하는 플레넘 챔버(14)와, 각각의 실린더에 연료를 분사하는 인젝터(16)와,상기 각각의 센서로부터 공급되는 신호를 처리, 제어하여 적절한 엔진작동 상태를 이루게 하는 전자제어장치(23)로 구성되는 엔진에 있어서, 상기 스로틀 위치센서(22)가 엔진이 공회전 상태임을 판정할시 상기 플레넘 챔버(14)로 직접 연속으로 연료를 분사하여 플레넘 챔버(14)내에서 공기와 연료의 혼합이 균질하게 이루어지도록 상기 플레넘 챔버(14)에 마련된공회전용 인젝터(17)와, 상기 인젝터(17)로 공급되는 연료의 압력을 감지하는 연료압 측정센서(18)와, 상기 전자제어장치(23)의 지시에 따라 라인(20)을 통해 연료펌프로부터 공급되는 연료를 상기 인젝터(17)와 라인(21)을 통해 연료펌프로 선택적으로 송출하거나, 또는 일부는 인젝터(17)로 공급하고 일부는 연료 탱크로 귀환시켜 요구되는 인젝터 압력이 되도록하는 듀티제어 3방향 밸브(19)로 구성되는 것을 특징으로 하는 엔진 공회전시의 연료압 제어장치.A throttle position sensor that senses the position of the throttle 13 for adjusting the amount of air supplied to the engine and determines whether the engine is idle, a plenum chamber 14 for supplying inhaled air to each cylinder, and An engine comprising an injector 16 for injecting fuel into a cylinder and an electronic controller 23 for processing and controlling signals supplied from the respective sensors to achieve an appropriate engine operating state, wherein the throttle position sensor ( When 22 determines that the engine is idle, the plenum chamber 14 causes fuel to be continuously injected directly to the plenum chamber 14 so that the mixing of air and fuel in the plenum chamber 14 is homogeneous. The injector dedicated to the revolution, the fuel pressure sensor 18 for detecting the pressure of the fuel supplied to the injector 17, and the line 20 according to the instructions of the electronic controller 23. Through fuel The fuel supplied from the pump is selectively discharged through the injector 17 and the line 21 to the fuel pump, or a part is supplied to the injector 17 and a part is returned to the fuel tank so as to obtain the required injector pressure. A fuel pressure control device at engine idle, characterized in that it comprises a duty control three-way valve (19). 제1항에 있어서, 상기 원래의 인젝터(16)는 상기 공회전용 인젝터(17)의 작동시에는 연료를 분사하지 않도록 구성된 것을특징으로 하는 엔진 공회전시의 연료압 제어장치.The fuel pressure control apparatus at the engine idle according to claim 1, characterized in that the original injector (16) is configured not to inject fuel when the idle injector (17) operates. 제1항에 있어서, 엔진으로부터의 배기관(24)에 위치하여 배기가스내의 산소량을 측정하여 이를 전자제어장치(23)로 공급하여 각각의 실린더내의 적합한 공회전용의 공연비가 이루어지도록 피드백 하는 산소센서(25)로 구성되는 것을 특징으로하는 에너지 공회전시의 연료압 제어장치.2. An oxygen sensor according to claim 1, wherein the oxygen sensor is located in the exhaust pipe 24 from the engine and measures the amount of oxygen in the exhaust gas and supplies it to the electronic control unit 23 so as to feed back an air-fuel ratio suitable for each idle in each cylinder. A fuel pressure control device at the time of energy idling, characterized in that consisting of 25). 제3항에 있어서, 상기 공회전용의 공연비가 약 14.5인 것을 특징으로 하는 에너지 공회전시의 연료압 제어장치.4. The fuel pressure control device at the time of energy idling according to claim 3, wherein the air-fuel ratio for the idle is about 14.5. 엔진 공회전시의 연료압 제어방법에 있어서, 스로틀 포지션 센서(22)에 의해 엔진이 공회전 상태인가의 여부를 판단하는단계, 상기 단계에서 엔진이 공회전 상태일 경우 기준 회전수와 실제 회전수 사이의 차이를 측정하여 상기 회전수 차에상응하는 연료압을 결정하는 단계, 상기 연료압을 실험에 의하여 결정된 연료압과 합하여 기준연료압을 결정하고 밸브(19)를 통하여 기준 연료압을 제공하는 단계, 필요한 기준공기량과 실제 공기량의 편차가 0이 되도록 실제 공기량을 보정하는 단계, 및 상기 기준 회전수와 실제 회전수의 편차가 설정된 범위에 속하는가의 여부를 판단하는 단계로 구성되는 엔진 공회전시의 연료압 제어방법.In the fuel pressure control method at the engine idle, determining whether the engine is idle by the throttle position sensor 22, the difference between the reference speed and the actual speed when the engine is idle Determining a fuel pressure corresponding to the rotational speed difference, summing the fuel pressure with the fuel pressure determined by the experiment to determine a reference fuel pressure and providing a reference fuel pressure through the valve 19; Correcting the actual air amount such that the deviation between the reference air amount and the actual air amount becomes zero, and determining whether the deviation between the reference speed and the actual speed falls within a set range. Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920026955A 1992-12-30 1992-12-30 Apparatus and method of controlling fuel pressure in engine idling KR960004279B1 (en)

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Application Number Priority Date Filing Date Title
KR1019920026955A KR960004279B1 (en) 1992-12-30 1992-12-30 Apparatus and method of controlling fuel pressure in engine idling

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Application Number Priority Date Filing Date Title
KR1019920026955A KR960004279B1 (en) 1992-12-30 1992-12-30 Apparatus and method of controlling fuel pressure in engine idling

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KR940015220A true KR940015220A (en) 1994-07-20
KR960004279B1 KR960004279B1 (en) 1996-03-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100902488B1 (en) * 2007-10-15 2009-06-10 콘티넨탈 오토모티브 시스템 주식회사 Method for driving engine of car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100902488B1 (en) * 2007-10-15 2009-06-10 콘티넨탈 오토모티브 시스템 주식회사 Method for driving engine of car

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