KR970006824A - 희박 연소 엔진 차량에 있어서의 공연비 제어시스템 - Google Patents

희박 연소 엔진 차량에 있어서의 공연비 제어시스템 Download PDF

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Publication number
KR970006824A
KR970006824A KR1019950023210A KR19950023210A KR970006824A KR 970006824 A KR970006824 A KR 970006824A KR 1019950023210 A KR1019950023210 A KR 1019950023210A KR 19950023210 A KR19950023210 A KR 19950023210A KR 970006824 A KR970006824 A KR 970006824A
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KR
South Korea
Prior art keywords
injection amount
correction value
lean
engine
fuel ratio
Prior art date
Application number
KR1019950023210A
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English (en)
Other versions
KR100187974B1 (ko
Inventor
이우직
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.)
Filing date
Publication date
Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950023210A priority Critical patent/KR100187974B1/ko
Priority to AU60808/96A priority patent/AU6080896A/en
Priority to EP96112294A priority patent/EP0757167A3/en
Publication of KR970006824A publication Critical patent/KR970006824A/ko
Application granted granted Critical
Publication of KR100187974B1 publication Critical patent/KR100187974B1/ko

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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
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating conditions
    • F02D41/1488—Inhibiting the regulation
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2454—Learning of the air-fuel ratio control
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions

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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 희박연소엔진을 장착한 차량에 있어서 이론공연비에 의한 운전과 희박공연비에 의한 운전을 각기 달리 제어하기 위한 제어시스템에 관한 것으로 이를 위해 각종센서로부터 얻어지는 정보에 기초하여 피드백 제어하므로써 엔진의 혼합기 공급을 제어하게 되는 엔진제어장치를 갖는 차량에 있어서, 상기 엔진제어장치는 이론공연비의 연소시에는 미리 설정된 보정값에 이론공연비시의 기본분사량을 곱한 값이 되도록 연료분사량을 결정하여 연소시킨 후 다시 λ센서에 의하여 배기가스중에 함유된 산소량을 검출하여 피드백 제어하는 과정을 반복하되 상기와 같이 얻어진 피드백 값은 다음 분사량을 결정하게 되는 보정값에 카운팅되어 엔진제어장치의 램에 저장되므로써 새로운 보정값을 형성하게 되며, 희박공연비의 연소시에는 상기 램에 저장된 보정값에 희박공연비시의 기본 분사량을 곱한 값으로 연료분사량을 결정토록 하므로써λ-센서에 의한 피드백 제어를 생략한 채 목표공연비에 접근토록 오픈제어하게 됨을 특징으로 한다.

Description

희박 연소 엔진 차량에 있어서의 공연비 제어시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 일반적인 공연비 제어흐름 블록도, 제2도는 본 발명 공연비 제어시스템의 블록도, 제3도는 본 발명의 작동흐름도.

Claims (1)

  1. 각종센서로부터 얻어지는 정보에 기초하여 피드백 제어하므로써 엔진의 혼합기 공급을 제어하게 되는 엔진제어장치를 갖는 차량에 있어서, 상기 엔진제어장치는 이론공연비의 연소시에는 미리 설정된 보정값에 이론공연비시의 기본분사량을 곱한 값이 되도록 연료분사량을 결정하여 연소시킨 후 다시 λ센서에 의하여 배기가스중에 함유된 산소량을 검출하여 피드백 제어하는 과정을 반복하되 상기와 같이 얻어진 피드백 값은 다음 분사량을 결정하게 되는 보정값에 카운팅되어 엔진제어장치의 램에 저장되므로써 새로운 보정값을 형성하게 되며, 희박공연비의 연소시에는 상기 램에 저장된 보정값에 희박공연비시의 기본 분사량을 곱한 값으로 연료분사량을 결정토록 하므로써λ-센서에 의한 피드백 제어를 생략한 채 목표공연비에 접근토록 오픈제어하게 됨을 특징으로 하는 희박연소엔진 차량에 있어서의 공연비 제어시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950023210A 1995-07-31 1995-07-31 희박 연소 엔진 차량에 있어서의 공연비 제어방법 KR100187974B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950023210A KR100187974B1 (ko) 1995-07-31 1995-07-31 희박 연소 엔진 차량에 있어서의 공연비 제어방법
AU60808/96A AU6080896A (en) 1995-07-31 1996-07-30 Air/fuel ratio control method for vehicles having thin combustion engines
EP96112294A EP0757167A3 (en) 1995-07-31 1996-07-30 Air/fuel ratio control method for a lean burn combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950023210A KR100187974B1 (ko) 1995-07-31 1995-07-31 희박 연소 엔진 차량에 있어서의 공연비 제어방법

Publications (2)

Publication Number Publication Date
KR970006824A true KR970006824A (ko) 1997-02-21
KR100187974B1 KR100187974B1 (ko) 1999-06-01

Family

ID=19422266

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950023210A KR100187974B1 (ko) 1995-07-31 1995-07-31 희박 연소 엔진 차량에 있어서의 공연비 제어방법

Country Status (3)

Country Link
EP (1) EP0757167A3 (ko)
KR (1) KR100187974B1 (ko)
AU (1) AU6080896A (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100435637B1 (ko) * 1997-12-16 2004-09-04 현대자동차주식회사 희박연소엔진을장착한차량에서의공연비제어방법
KR100422619B1 (ko) * 1997-12-31 2004-06-16 현대자동차주식회사 연료 분사 제어방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105530A (en) * 1980-12-23 1982-07-01 Toyota Motor Corp Air-fuel ratio controlling method for internal combustion engine
NL8400271A (nl) * 1984-01-30 1985-08-16 Philips Nv Regelinrichting voor een verbrandingsmotor.
JPS6176733A (ja) * 1984-09-10 1986-04-19 Mazda Motor Corp エンジンの空燃比制御装置

Also Published As

Publication number Publication date
EP0757167A3 (en) 1998-04-08
AU6080896A (en) 1997-02-06
KR100187974B1 (ko) 1999-06-01
EP0757167A2 (en) 1997-02-05

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