KR970045295A - Apparatus and method for controlling start operation of engine in case of engine water temperature sensor failure - Google Patents

Apparatus and method for controlling start operation of engine in case of engine water temperature sensor failure Download PDF

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Publication number
KR970045295A
KR970045295A KR1019950048854A KR19950048854A KR970045295A KR 970045295 A KR970045295 A KR 970045295A KR 1019950048854 A KR1019950048854 A KR 1019950048854A KR 19950048854 A KR19950048854 A KR 19950048854A KR 970045295 A KR970045295 A KR 970045295A
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South Korea
Prior art keywords
engine
temperature
coolant temperature
signal output
state
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KR1019950048854A
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Korean (ko)
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KR100302701B1 (en
Inventor
조진희
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전성원
현대자동차 주식회사
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Priority to KR1019950048854A priority Critical patent/KR100302701B1/en
Publication of KR970045295A publication Critical patent/KR970045295A/en
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Publication of KR100302701B1 publication Critical patent/KR100302701B1/en

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Classifications

    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • 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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0223—Cooling water temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0225—Intake air or mixture temperature

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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 냉각수 온도를 감지하는 온도 센서에 이상이 발생한 경우 흡기도관을 통해 흡입되는 공기의 온도를 이용하여 엔진의 냉각수 온도에 따른 엔진 제어 동작을 실행할 수 있도록 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치 및 그 방법을 제공하기 위하여,엔진의 냉각수 온도에 따라 출력되는 전기 신호가 변화하는 엔진 냉각수온 감지 수단과;흡기 계통을 통해 흡입되는 공기의 온도에 따라 출력되는 전기 신호가 변화하는 흡기온 감지 수단과;상기 엔진 냉각수온 감지 수단에서 출력되는 신호의 상태가 비정상 상태일 경우 흡기온 감지 수단에서 출력되는 신호를 판독하여,시동시 엔진의 제어 동작을 실행할 수 있도록 하는 제어 신호를 출력하는 엔진 제어 수단과;상기 엔진 제어 수단에서 출력되는 제어 신호에 따라 동작 상태가 변화하여 산출된 양만큼의 연료가 분사될 수 있도록 하는 연료 분사 장치를 포함하여 이루어진다.In the event of an abnormality in the temperature sensor that senses the coolant temperature of the engine, control of the starting operation of the engine when the engine water temperature sensor fails, enabling the engine control operation according to the coolant temperature of the engine using the temperature of the air sucked through the intake pipe In order to provide an apparatus and a method thereof, an engine coolant temperature sensing means for changing an electrical signal output according to a coolant temperature of an engine; and an intake temperature sensing for changing an electrical signal output according to a temperature of air sucked through an intake system; And engine control for reading a signal output from the intake air temperature detecting means when the state of the signal output from the engine cooling water temperature detecting means is abnormal, and outputting a control signal for executing a control operation of the engine at startup. An operation state is changed according to a control signal output from the engine control means; W is made to the fuel by the calculated amount of a fuel injection apparatus so that it can be injected.

Description

엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치 및 그 방법Apparatus and method for controlling start operation of engine in case of engine water temperature sensor failure

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

제1도는 이 발명의 실시예에 따른 엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치의 블록도이다.1 is a block diagram of a starting operation control apparatus of an engine when an engine water temperature sensor fails in accordance with an embodiment of the present invention.

제2도는 이 발명의 실시예에 따른 엔진 수온 센서 고장시 엔진의 시동 동작 제어 방법의 동작 순서도이다.2 is an operation flowchart of a method for controlling the starting operation of an engine when an engine water temperature sensor is broken according to an embodiment of the present invention.

Claims (6)

엔진의 냉각수 온도에 따라 출력되는 전기 신호가 변화하는 엔진 냉각수온 감지 수단과;흡기 계통을 통해 흡입되는 공기의 온도에 따라 출력되는 전기 신호가 변화하는 흡기온 감지 수단과;상기 엔진 냉각수온 감지 수단에서 출력되는 신호의 상태가 비정상 상태일 경우 흡기온 감지 수단에서 출력되는 신호를 판독하여,시동시 엔진의 제어 동작을 실행할 수 있도록 하는 제어 신호를 출력하는 엔진 제어 수단과;상기 엔진 제어 수단에서 출력되는 제어 신호에 따라 동작 상태가 변화하여 산출된 양만큼의 연료가 분사될 수 있도록 하는 연료 분사 장치를 포함하여 이루어지는 것을 특징으로 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치.An engine coolant temperature sensing means for changing an electrical signal output according to a coolant temperature of an engine; an intake air temperature sensing means for changing an electrical signal output according to a temperature of air sucked through an intake system; and the engine coolant temperature sensing means; An engine control means for reading a signal output from the intake air temperature detecting means and outputting a control signal for executing a control operation of the engine at startup; And a fuel injection device configured to change the operation state according to the control signal to be injected so that the fuel can be injected by the calculated amount. 제1항에 있어서,상기 엔진 냉각수온 감지 수단은,엔진을 냉각시키기 위한 냉각 장치 내부에 장착되고,감지되는 냉각수의 온도에 따라 내부 저항값이 변화하여 출력 전압이 변화하는 서머스터를 이용하는 것을 특징으로 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치.According to claim 1, The engine cooling water temperature detection means, is mounted inside the cooling device for cooling the engine, characterized in that for use the thermoster, the internal resistance value changes according to the temperature of the detected coolant to change the output voltage Engine operation control device when the engine water temperature sensor breaks down. 제1항에 있어서,상기 흡기온 감지 수단은,흡기 계통에 장착되고,감지되는 흡입 공기의 온도에 따라 내부 저항값이 변화하여 출력 전압이 변화하는 서머스터를 이용하는 것을 특징으로 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치.The engine water temperature sensor failure of claim 1, wherein the intake air temperature detecting means uses a thermoster mounted on an intake air system, and uses an internal resistance value according to a detected temperature of intake air to change an output voltage. Control device for starting operation of city engine 제1항에 있어서,상기 엔진 제어 수단은,엔진 냉각수온 감지 수단에서 출력되는 신호에 의해 판정된 엔진의 냉각수 온도가 설정 범위를 벗어날 경우,엔진 냉각수온 감지 수단의 동작 상태를 이상 상태로 판정하는 것을 특징으로 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 장치.According to claim 1, The engine control means, When the coolant temperature of the engine determined by the signal output from the engine coolant temperature detection means is out of the setting range, determining the operating state of the engine coolant temperature detection means as an abnormal state The engine start operation control device when the engine water temperature sensor failure. 엔진 냉각수온 감지 수단에서 출력되는 신호를 판독하여 엔진의 냉각수 온도를 판정하는 단계와;판정된 엔진의 냉각수 온도 상태가 정상 상태인지를 판단하는 단계와;판단된 엔진의 냉각수 온도 상태가 정상 상태일 경우,엔진의 냉각수 온도를 이용하여 엔진의 시동 동작을 제어하는 단계와;판단된 엔진의 냉각수 온도 상태가 비정상 상태일 경우,흡기온 감지 수단에서 출력되는 신호를 판독하여 흡입되는 공기의 온도를 판정하는 단계와;판정된 흡입 공기의 온도를 이용하여 엔진의 시동 동작을 제어하는 단계를 포함하여 이루어져 있는 것을 특징으로 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 방법.Determining a coolant temperature of the engine by reading a signal output from the engine coolant temperature sensing means; determining whether the coolant temperature state of the determined engine is in a normal state; and the coolant temperature state of the determined engine is in a normal state In the case of controlling the starting operation of the engine by using the coolant temperature of the engine; If the coolant temperature state of the determined engine is in an abnormal state, reading the signal output from the intake air temperature sensing means to determine the temperature of the intake air And controlling the starting operation of the engine using the determined temperature of the intake air. 제5항에 있어서,판정된 엔진의 냉각수 온도가 설정 범위를 벗어날 경우, 엔진의 냉각수 온도 감지 수단의 상태를 비정상 상태로 판정하는 것을 특징으로 하는 엔진 수온 센서 고장시 엔진의 시동 동작 제어 방법.The method according to claim 5, wherein when the determined coolant temperature of the engine is out of a predetermined range, the state of the coolant temperature sensing means of the engine is determined as an abnormal state.
KR1019950048854A 1995-12-12 1995-12-12 Device and method for controlling engine start operation in failure of coolant temperature sensor KR100302701B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950048854A KR100302701B1 (en) 1995-12-12 1995-12-12 Device and method for controlling engine start operation in failure of coolant temperature sensor

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Application Number Priority Date Filing Date Title
KR1019950048854A KR100302701B1 (en) 1995-12-12 1995-12-12 Device and method for controlling engine start operation in failure of coolant temperature sensor

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KR970045295A true KR970045295A (en) 1997-07-26
KR100302701B1 KR100302701B1 (en) 2001-11-30

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KR100423285B1 (en) * 2000-12-28 2004-03-18 현대자동차주식회사 A method for fuel temperature sensor fail detect of vehicle
KR20020080977A (en) * 2001-04-18 2002-10-26 기아자동차주식회사 Method for pre-heating a sucked air for a diesel engine in a motor vehicle

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JPH04330348A (en) * 1991-04-30 1992-11-18 Suzuki Motor Corp Trouble diagnostic device for vehicle

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