KR970044709A - Intake air amount determination device and method in case of intake air amount sensor abnormality - Google Patents

Intake air amount determination device and method in case of intake air amount sensor abnormality Download PDF

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Publication number
KR970044709A
KR970044709A KR1019950066770A KR19950066770A KR970044709A KR 970044709 A KR970044709 A KR 970044709A KR 1019950066770 A KR1019950066770 A KR 1019950066770A KR 19950066770 A KR19950066770 A KR 19950066770A KR 970044709 A KR970044709 A KR 970044709A
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South Korea
Prior art keywords
amount
state
engine
intake air
air
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KR1019950066770A
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Korean (ko)
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KR100302287B1 (en
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이원준
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전성원
현대자동차 주식회사
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Priority to KR1019950066770A priority Critical patent/KR100302287B1/en
Publication of KR970044709A publication Critical patent/KR970044709A/en
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Publication of KR100302287B1 publication Critical patent/KR100302287B1/en

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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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • 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
    • F02D31/002—Electric control of rotation speed controlling air supply
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow

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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)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

엔진의 상태가 정상 상태로 변환되기 전에 흡입되는 공기량을 산출하기 위한 공기량 센서가 정상적인 동작을 수행하지 못할 경우 엔진의 냉각수 온도에 따라 설정되어 있는 데이터를 이용하여 흡입되는 공기량을 판정하므로 엔진의 상태에 적절한 공기량이 산출될 수 있도록 하는 흡입 공기량 센서 이상시 흡입 공기량 판정 장치 및 그 방법을 제공하기 위하여, 엔진의 연소실로 흡입되는 공기량에 따라 출력되는 전기 신호의 상태가 변화하는 엔진 회전수 감지 수단과; 상기 흡입 공기량 감지 수단과 엔진 회전수 감지 수단에서 출력되는 신호를 판독하여, 흡입 공기량 감지 수단에서 출력되는 신호 상태가 비정상 상태일 경우, 엔진의 회전수 상태에 따라 판정된 엔진의 상태가 아이들 제어가 완료되지 않은 상태일 경우 엔진의 냉각수 온도를 기준으로 설정되어 있는 데이터를 이용하여 흡입되는 공기량을 판정하고, 아이들 제어가 완료된 상태일 경우 엔진의 회전수와 스로틀 밸브의 개도량에 따라 이미 설정되어 있는 데이터를 이용하여 흡입되는 공기량을 판정하는 엔진 제어 수단을 포함하여 이루어져 있다.If the air volume sensor for calculating the amount of air sucked in before the engine state is converted to the normal state does not perform a normal operation, the amount of air sucked is determined using the data set according to the coolant temperature of the engine. Engine rotation speed detection means for changing the state of an electrical signal output in accordance with the amount of air sucked into the combustion chamber of the engine in order to provide an intake air amount determination device and method therefor when an intake air amount sensor abnormality allows an appropriate amount of air to be calculated; When the signal output from the intake air amount detection means and the engine speed detection means is read and the signal state output from the intake air amount detection means is in an abnormal state, the state of the engine determined according to the engine speed state is set to idle control. In the case of not completed state, the amount of air to be sucked is determined by using the data set based on the coolant temperature of the engine.If the idle control is completed, the amount of air drawn in is determined according to the engine speed and the opening amount of the throttle valve. Engine control means for determining the amount of air sucked in using the data.

Description

흡입 공기량 센서 이상시 흡입 공기량 판정장치 및 그 방법Intake air amount determination device and method in case of intake air amount sensor abnormality

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

제1도는 이 발명의 실시예에 따른 흡입 공기량 센서 이상시 흡입 공기량 판정 장치의 블럭도이고,1 is a block diagram of the intake air amount determination device when the intake air amount sensor abnormality according to an embodiment of the present invention,

제2도는 이 발명의 실시예에 따른 흡입 공기량 센서 이상시 흡입 공기량 판정 방법의 동작 순서도.2 is an operation flowchart of the intake air amount determination method when the intake air amount sensor abnormality according to an embodiment of the present invention.

Claims (4)

엔진의 연소실로 흡입되는 공기량에 따라 출력되는 전기 신호가 변화하는 흡입 공기량 감지 수단과; 엔진의 회전수에 따라 출력되는 전기 신호의 상태가 변화하는 엔진 회전수 감지 수단과; 상기 흡입 공기량 감지 수단과 엔진 회전수 감지 수단에서 출력되는 신호를 판독하여, 흡입 공기량 감지 수단에서 출력되는 신호 상태가 비정상 상태일 경우, 엔진의 회전수 상태에 따라 판정된 엔진의 상태가 아이들 제어가 완료되지 않은 상태일 경우 엔진의 냉각수 온도를 기준으로 설정되어 있는 데이터를 이용하여 흡입되는 공기량을 판정하고, 아이들 제어가 완료된 상태일 경우 엔진의 회전수와 스로틀 밸브의 개도량에 따라 이미 설정되어 있는 데이터를 이용하여 흡입되는 공기량을 판정하는 엔진 제어 수단을 포함하여 이루어져 있는 것을 특징으로 하는 흡입 공기량 센서 이상의 흡입 공기량 판정 장치.Intake air amount detecting means for changing an output electrical signal in accordance with the amount of air sucked into the combustion chamber of the engine; Engine speed detection means for changing a state of an electrical signal output in accordance with the rotation speed of the engine; When the signal output from the intake air amount detection means and the engine speed detection means is read and the signal state output from the intake air amount detection means is in an abnormal state, the state of the engine determined according to the engine speed state is set to idle control. In the case of not completed state, the amount of air to be sucked is determined by using the data set based on the coolant temperature of the engine.If the idle control is completed, the amount of air drawn in is determined according to the engine speed and the opening amount of the throttle valve. And an engine control means for determining the amount of air sucked in using the data. 제1항에 있어서, 상기 엔진 제어 수단은, 판정된 엔진의 상태가 아이들 제어 상태일 경우, 설정된 값만큼 판정되는 흡입 공기량이 단계적으로 변화하여, 스로틀 밸브의 개도량과 엔진의 회전수에 따라 설정되는 흡입 공기량만큼 갈아질 때까지 제어하는 것을 특징으로 하는 흡입 공기량 센서 이상의 흡입 공기량 판정 장치.The engine control means according to claim 1, wherein when the determined engine state is in the idle control state, the intake air amount determined by the set value is gradually changed, and the engine control means is set according to the opening amount of the throttle valve and the engine speed. The intake air amount determination device of the intake air amount sensor or more, characterized in that the control is performed until the amount of intake air is changed. 흡입 공기량 감지 수단에서 출력되는 신호를 판독하여, 흡입 공기량 감지 수단에서 출력되는 신호 상태가 정상 상태인지를 판단하는 단계와; 판단된 출력 신호의 상태가 비정상 상태일 경우, 엔진 회전수 감지 수단에서 출력되는 신호를 판독하여, 엔진의 회전수를 판정하는 단계와; 판정된 엔진의 회전수 상태가 시동 초기 상태일 경우, 이미 설정된 값으로 흡입되는 공기량을 판정하는 단계와; 판정된 엔진의 회전수 상태가 아이들 제어 상태일 경우, 이미 설정된 값으로 흡입되는 공기량을 판정한 후, 설정된 값만큼 단계적으로 감소시켜 흡입 공기량을 판정하는 단계와; 판정되는 흡입 공기량이 스로틀 밸브의 개도량과 엔진의 회전수에 따라 설정되는 흡입 공기량만큼 같아질 때까지 단계적으로 흡입 공기량을 감소시켜 판정하는 단계를 포함하여 이루어져 있는 것을 특징으로 하는 흡입 공기량 센서 이상의 흡입 공기량 판정 방법.Reading a signal output from the intake air amount detecting means to determine whether a signal state output from the intake air amount detecting means is in a normal state; If the determined state of the output signal is abnormal, reading the signal output from the engine speed detecting means, and determining the engine speed; Determining the amount of air sucked into a value already set when the determined engine speed state is an initial starting state; When the determined engine speed state is in the idle control state, determining the amount of air sucked into the already set value, and gradually decreasing the set amount by the set value to determine the amount of intake air; And reducing the intake air amount step by step until the determined intake air amount is equal to the intake air amount set according to the opening amount of the throttle valve and the engine speed. Air volume determination method. 제3항에 있어서, 엔진의 상태가 아이들 제어가 완료된 정상 상태가 아닐 경우, 흡입되는 공기량을 판정하기 위한 설정 데이터는 엔진의 냉각수 온도를 기준으로 설정되는 것을 특징으로 하는 흡입 공기량 센서 이상의 공기량 판정 방법.The method of claim 3, wherein the setting data for determining the amount of air to be sucked is set based on the coolant temperature of the engine when the state of the engine is not a normal state in which the idle control is completed. .
KR1019950066770A 1995-12-29 1995-12-29 Device and method for deciding induction air amount when induction air sensor disorder KR100302287B1 (en)

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KR1019950066770A KR100302287B1 (en) 1995-12-29 1995-12-29 Device and method for deciding induction air amount when induction air sensor disorder

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KR1019950066770A KR100302287B1 (en) 1995-12-29 1995-12-29 Device and method for deciding induction air amount when induction air sensor disorder

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100245698B1 (en) * 1997-08-30 2000-04-01 정몽규 Method for diagnosing malfunction of a measuring sensor of the amount of air
KR20040001638A (en) * 2002-06-28 2004-01-07 현대자동차주식회사 Apparatus for diagnosis failure of water temperature sensor on vehicle and method thereof
KR100428042B1 (en) * 2002-03-15 2004-04-28 기아자동차주식회사 Method of controlling start extinction prevention according to contact defectiveness of afs during deceleration
KR100448388B1 (en) * 2002-08-23 2004-09-10 현대자동차주식회사 Method of controlling air flow sensor for vehicle under its fail
KR100860228B1 (en) * 2007-03-05 2008-09-24 콘티넨탈 오토모티브 시스템 주식회사 Method for detecting open of positive crankcase ventilation hose cap of intake system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100245698B1 (en) * 1997-08-30 2000-04-01 정몽규 Method for diagnosing malfunction of a measuring sensor of the amount of air
KR100428042B1 (en) * 2002-03-15 2004-04-28 기아자동차주식회사 Method of controlling start extinction prevention according to contact defectiveness of afs during deceleration
KR20040001638A (en) * 2002-06-28 2004-01-07 현대자동차주식회사 Apparatus for diagnosis failure of water temperature sensor on vehicle and method thereof
KR100448388B1 (en) * 2002-08-23 2004-09-10 현대자동차주식회사 Method of controlling air flow sensor for vehicle under its fail
KR100860228B1 (en) * 2007-03-05 2008-09-24 콘티넨탈 오토모티브 시스템 주식회사 Method for detecting open of positive crankcase ventilation hose cap of intake system

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