KR970044814A - Engine stall prevention device and its method during cold start - Google Patents

Engine stall prevention device and its method during cold start Download PDF

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Publication number
KR970044814A
KR970044814A KR1019950055163A KR19950055163A KR970044814A KR 970044814 A KR970044814 A KR 970044814A KR 1019950055163 A KR1019950055163 A KR 1019950055163A KR 19950055163 A KR19950055163 A KR 19950055163A KR 970044814 A KR970044814 A KR 970044814A
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KR
South Korea
Prior art keywords
engine speed
engine
temperature
amount
fuel
Prior art date
Application number
KR1019950055163A
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Korean (ko)
Other versions
KR0183127B1 (en
Inventor
강재훈
Original Assignee
전성원
현대자동차 주식회사
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Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950055163A priority Critical patent/KR0183127B1/en
Publication of KR970044814A publication Critical patent/KR970044814A/en
Application granted granted Critical
Publication of KR0183127B1 publication Critical patent/KR0183127B1/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
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
    • 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
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/101—Engine speed

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

냉각수의 온도를 감지하는 냉각수온 감지 수단과; 엔진 구동에 따라 출력되는 엔진 회전수를 감지하는 엔진 회전수 감지 수단과; 흡입되는 공기량을 감지하는 흡입 공기량 감지수단과; 현재 냉각수의 온도가 일정 온도이하인 경우에, 감지되는 엔진 회전수가 현재 온도에 따른 목표 엔진 회전수보다 작은 경우에 시간당 엔진 회전수 변화율을 산출한 다음, 산출된 엔진 회전수 변화율 설정값 이하인 경우에 엔진 회전수가 급격히 떨어지고 있는 것으로 판단하여 공기량 및 연료량을 증가시켜 그에 해당하는 연료 증대 신호를 출력하는 엔진 제어 수단과; 상기 엔진 제어 수단에서 출력되는 연료 증대 신호에 다라 구동되어 엔진으로 공급되는 연료량을 증가시켜 공급하는 연료 분사 수단을 포함하여 이루어지는 저온 시동시의 엔진 스톨 방지 장치는, 수동 변속 차량에 있어서 주위 온도가 극히 낮아서 엔진 회전수가 일정값 이하로 떨어지는 경우에, 흡입되는 공기량과 연료량을 증가시켜 엔진 스톨 현상을 방지할 수 있다.Cooling water temperature sensing means for sensing a temperature of cooling water; Engine speed detection means for detecting an engine speed output according to engine driving; Intake air amount detecting means for detecting an intake air amount; When the current coolant temperature is below a certain temperature, the engine speed change rate per hour is calculated when the detected engine speed is lower than the target engine speed according to the current temperature, and then the engine is lower than the calculated engine speed change rate setting value. Engine control means for determining that the rotational speed is falling rapidly and increasing the amount of air and the amount of fuel and outputting a fuel increase signal corresponding thereto; The engine stall prevention apparatus at low temperature start-up which comprises the fuel injection means which drives according to the fuel increase signal output from the said engine control means, and increases and supplies the amount of fuel supplied to an engine, has the ambient temperature extremely in a manual transmission vehicle. When the engine speed is low and the engine speed drops below a certain value, the engine stall phenomenon can be prevented by increasing the amount of intake air and fuel.

Description

저온 시동시의 엔진 스톨 방지장치 및 그 방법Engine stall prevention device and its method during cold start

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

제1도는 이 발명의 실시예에 따른 저온 시동시의 엔진 스톨 방지 장치의 구성 블록도.1 is a block diagram illustrating a configuration of an engine stall prevention apparatus at a low temperature start according to an embodiment of the present invention.

제2도는 이 발명의 실시예에 따른 저온 시동시의 엔진 스톨 방지 방법의 동작 순서도이고,2 is an operation flowchart of the engine stall prevention method at the low temperature start according to the embodiment of the present invention,

Claims (2)

수동 변속 차량에 있어서, 냉각수 온도를 감지하여 그에 해당하는 전기적인 신호를 출력하는 냉각수온 감지 수단과; 엔진 구동에 따라 출력되는 엔진 회전수를 감지하여 그에 해당하는 전기적인 신호를 출력하는 엔진 회전수 감지 수단과; 흡입되는 공기량을 감지하여 그에 해당하는 전기적인 신호를 출력하는 흡입 공기량 감지수단과; 현재 냉각수의 온도가 일정 온도이하인 경우에, 감지되는 엔진 회전수가 현재 온도에 따른 목표 엔진 회전수보다 작은 경우에 시간당 엔진 회전수 변화율을 산출한 다음, 산출된 엔진 회전수 변화율 설정값 이하인 경우에 엔진 회전수가 급격히 떨어지고 있는 것으로 판단하여 공기량 및 연료량을 증가시켜 공급하는 연료 증대 신호를 출력하는 엔진 제어 수단과; 상기 엔진 제어 수단에서 출력되는 연료 증대 신호에 따라 구동되어 엔진으로 공급되는 연료량을 증가시켜 연료 분사 수단을 포함하여 이루어지는 것을 특징으로 하는 저온 시동시의 엔진 스톨 방지 장치.A manual shift vehicle comprising: coolant temperature sensing means for sensing a coolant temperature and outputting an electrical signal corresponding thereto; Engine speed detection means for detecting an engine speed output according to engine driving and outputting an electrical signal corresponding thereto; Inhalation air amount sensing means for sensing an intake air amount and outputting an electrical signal corresponding thereto; When the current coolant temperature is below a certain temperature, the engine speed change rate per hour is calculated when the detected engine speed is lower than the target engine speed according to the current temperature, and then the engine is lower than the calculated engine speed change rate setting value. Engine control means for determining that the rotational speed is falling rapidly and outputting a fuel increase signal supplied by increasing the amount of air and the amount of fuel; And a fuel injection means by increasing the amount of fuel supplied to the engine by driving the fuel increase signal output from the engine control means. 차량이 시동이 걸린 다음 냉각수의 온도를 감지하는 단계와; 감지되는 냉각수의 온도가 일정 온도 이하인 경우에 감지되는 엔진 회전수와 냉각수의 온도가 일정 온도 이하인 경우의 목표 엔진 회전수의 관계를 비교하는 단계와; 상기에서 감지되는 엔진 회전수가 목표 엔진 회전수 보다 작은 경우에 시간당 엔진 회전수 변화율을 산출하여 설정값과의 관계를 비교 판단하는 단계와; 산출된 엔진 회전수 변화율이 설정값보다 작은 경우에는 엔진 회전수가 급격히 떨어지고 있는 상태로 판단하여, 공기량을 증가시키고 그에 따른 연료량을 증가시켜 엔진으로 공급하는 단계를 포함하여 이루어지는 것을 특징으로 하는 저온 시동시의 엔진 스톨 방지 방법.Sensing the temperature of the coolant after the vehicle is started; Comparing the detected engine speed when the sensed coolant temperature is below a predetermined temperature and the target engine speed when the coolant temperature is below a predetermined temperature; Calculating a rate of change of engine speed per hour when the detected engine speed is smaller than a target engine speed and comparing and determining a relationship with a set value; When the calculated engine speed change rate is smaller than the set value, it is determined that the engine speed is rapidly falling, and the engine speed is increased, and thus the amount of fuel is increased to supply the engine to the engine. To prevent engine stall.
KR1019950055163A 1995-12-23 1995-12-23 Apparatus for preventing engine stole at cold starting KR0183127B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950055163A KR0183127B1 (en) 1995-12-23 1995-12-23 Apparatus for preventing engine stole at cold starting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950055163A KR0183127B1 (en) 1995-12-23 1995-12-23 Apparatus for preventing engine stole at cold starting

Publications (2)

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KR970044814A true KR970044814A (en) 1997-07-26
KR0183127B1 KR0183127B1 (en) 1999-03-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020018755A (en) * 2000-09-04 2002-03-09 이계안 Method for controlling shift of vehicle
KR100507113B1 (en) * 2002-12-13 2005-08-09 현대자동차주식회사 Method of controlling fuel under rapid starting after cold starting for vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013880B1 (en) * 2004-11-25 2011-02-14 기아자동차주식회사 Control method for improvement of fuel-injection performance in cold temperature of diesel vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020018755A (en) * 2000-09-04 2002-03-09 이계안 Method for controlling shift of vehicle
KR100507113B1 (en) * 2002-12-13 2005-08-09 현대자동차주식회사 Method of controlling fuel under rapid starting after cold starting for vehicle

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Publication number Publication date
KR0183127B1 (en) 1999-03-20

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