KR970044789A - Fuel control method to prevent sudden drop in engine speed at low temperature - Google Patents

Fuel control method to prevent sudden drop in engine speed at low temperature Download PDF

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Publication number
KR970044789A
KR970044789A KR1019950053724A KR19950053724A KR970044789A KR 970044789 A KR970044789 A KR 970044789A KR 1019950053724 A KR1019950053724 A KR 1019950053724A KR 19950053724 A KR19950053724 A KR 19950053724A KR 970044789 A KR970044789 A KR 970044789A
Authority
KR
South Korea
Prior art keywords
engine speed
control method
sudden drop
fuel control
low temperature
Prior art date
Application number
KR1019950053724A
Other languages
Korean (ko)
Other versions
KR100211690B1 (en
Inventor
이진구
Original Assignee
전성원
현대자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950053724A priority Critical patent/KR100211690B1/en
Publication of KR970044789A publication Critical patent/KR970044789A/en
Application granted granted Critical
Publication of KR100211690B1 publication Critical patent/KR100211690B1/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
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/007—Electric control of rotation speed controlling fuel 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
    • F02D41/04—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

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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)

Abstract

본 발명은 저온으로 인해 엔진에 부하가 걸려 엔진 회전수가 급격히 저하할 시, 이를 방지키 위해 저하되는 만큼의 연료량을 증가 공급토록 하는 저온 시 엔진 회전수의 급저하 방지를 위한 연료제어 방법에 관한 것으로, 최대 엔진 회전수 저하값을 설정하고, 이 값에 현 엔진 회전수를 비교한 후 엔진 회전수가 저하된 만큼만 연료량을 증가하여 공급토록 하므로써, 쓸데없이 낭비되는 연료량을 효율적으로 제어한다.The present invention relates to a fuel control method for preventing a sudden drop in the engine speed at low temperatures to increase the amount of fuel that is reduced in order to prevent this, when the engine speed is sharply lowered due to the low temperature. By setting the maximum engine speed reduction value and comparing the current engine speed to this value, the amount of fuel is increased and supplied only as much as the engine speed decreases, thereby efficiently controlling the amount of unnecessary waste.

Description

저온 시 엔진 회전수의 급저하 방지를 위한 연료제어방법Fuel control method to prevent sudden drop in engine speed at low temperature

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

제1도는 본 발명의 연료제어방법을 설명키 위한 그래프.1 is a graph for explaining the fuel control method of the present invention.

제2도는 본 발명의 연료제어방법 과정을 도시한 순서도이다.2 is a flowchart illustrating a fuel control method process of the present invention.

Claims (1)

엔진의 공급되는 연료량을 제어하는 방법에 있어서, 부하에 따른 최대 엔진 회전수 저하값(Ne Ø)설정한 후(S1); 현차량의 엔진 회전수(RPM)를 입력받아(S2); 상기 입력된 값(RPM)이 최대 엔진 회전수 저하값(Ne Ø) 보다 작은가(NeØ 〉 RPM)의 여부를 판단하여(S3); 작으면 상기에서 판단된 값만큼 보정값을 계산하고, 이 보정값을 기본 연료량에 곱하여 엔진 회전수 저하를 방지함을 특징으로 하는 저온 시 엔진 회전수의 급저하 방지를 위한 연료제어 방법.A method for controlling the amount of fuel supplied to an engine, comprising: setting a maximum engine speed decrease value Ne Ø according to a load (S1); Receiving the engine speed (RPM) of the current vehicle (S2); Determining whether the input value RPM is smaller than the maximum engine speed decrease value Ne Ø (NeØ> RPM) (S3); If it is small, the fuel control method for preventing a sudden drop in the engine speed at low temperatures, characterized in that by calculating the correction value by the value determined above, and multiplying the correction value by the base fuel amount to reduce the engine speed.
KR1019950053724A 1995-12-21 1995-12-21 Fuel injection control method preventing sudden drop of engine r.p.m. when low temperature KR100211690B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950053724A KR100211690B1 (en) 1995-12-21 1995-12-21 Fuel injection control method preventing sudden drop of engine r.p.m. when low temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950053724A KR100211690B1 (en) 1995-12-21 1995-12-21 Fuel injection control method preventing sudden drop of engine r.p.m. when low temperature

Publications (2)

Publication Number Publication Date
KR970044789A true KR970044789A (en) 1997-07-26
KR100211690B1 KR100211690B1 (en) 1999-08-02

Family

ID=19442608

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950053724A KR100211690B1 (en) 1995-12-21 1995-12-21 Fuel injection control method preventing sudden drop of engine r.p.m. when low temperature

Country Status (1)

Country Link
KR (1) KR100211690B1 (en)

Also Published As

Publication number Publication date
KR100211690B1 (en) 1999-08-02

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