KR870010297A - Engine control system - Google Patents

Engine control system Download PDF

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Publication number
KR870010297A
KR870010297A KR870003345A KR870003345A KR870010297A KR 870010297 A KR870010297 A KR 870010297A KR 870003345 A KR870003345 A KR 870003345A KR 870003345 A KR870003345 A KR 870003345A KR 870010297 A KR870010297 A KR 870010297A
Authority
KR
South Korea
Prior art keywords
engine
fuel
control unit
throttle valve
speed
Prior art date
Application number
KR870003345A
Other languages
Korean (ko)
Inventor
기요미 모리타
쥰지 미야케
Original Assignee
미타 가츠시게
가부시키가이샤 히타치세이사쿠쇼
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 미타 가츠시게, 가부시키가이샤 히타치세이사쿠쇼 filed Critical 미타 가츠시게
Publication of KR870010297A publication Critical patent/KR870010297A/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
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • 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
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • F02D41/126—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off transitional corrections at the end of the cut-off period
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/045—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions combined with electronic control of other engine functions, e.g. fuel injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/1502—Digital data processing using one central computing unit
    • F02P5/1508—Digital data processing using one central computing unit with particular means during idling

Abstract

내용 없음No content

Description

엔진제어시스템Engine control system

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

제1도는 본 발명에 따른 엔진제어시스템의 실시예를 구비한 내연기관의 부분적인 개략설명도.1 is a partial schematic illustration of an internal combustion engine with an embodiment of an engine control system according to the invention;

제2도는 엔진제어시스템의 전기제어유닛의 동작에 대한 차트.2 is a chart of the operation of the electric control unit of the engine control system.

제3도는 본 발명에 따른 엔진제어시스템의 동작특성을 나타내는 그래프.3 is a graph showing the operating characteristics of the engine control system according to the present invention.

Claims (1)

내연기관은 흡입매니폴드와, 이 흡입매니폴드내에 배설되어 아이들 위치와 완전히 개방된 위치 사이에서 개폐되는 스로틀밸브와, 이 스로틀밸브의 상류측에 배설되어 상기 흡입매니폴드를 통과하는 공기흐름내에 연료를 분사하여 분사된 연료를 상기 흡입매니폴드내의 공기와 혼합하여 엔진실린더내로 흡입되는 공기연료혼합물을 생성하는 전기작동 연료분사기와, 각 엔진실린더내의 공기연료 혼합물을 점화하는 점화플러그를 포함한 점화시스템을 구비하며, 제어시스템은 상기 연료분사기와 상기 점화시스템에 전기적으로 점속된 전기제어유닛과, 이 제어유닛에 전기적으로 접속되어 상기 스로틀밸브의 위치를 검출하고 상기 아이들 위치에 있을 때 상기 스로틀밸브의 위치를 검출하는 아이들 스위치를 포함한 스로틀 위치센서와, 상기 제어유닛에 전기적으로 접속되어 상기 흡입매니폴드를 통과하여 상기 엔진내로 흐르는 공기유속을 검출하는 공기유량계와 상기 제어유닛에 전기적으로 접속되어 엔진 속도를 검출하는 엔진속도센서를 구비하며 상기 제어유닛은 상기 공기 유량계에 의하여 검출된 엔진흡입공기 유속과 상기 엔진속도센서에 의하여 검출된 엔진속도에 의거하여 상기 연료분사기를 통과하는 연료공급속도를 결정하여 상기 연료분사기에 전원을 인가하므로써 상기 제어유닛에 의하여 결정된 속도로 상기 분사기가 연료를 분사하며, 또한 상기 제어유닛은 엔진감속중에 연료분사기에 대한 전원을 차단하여 상기 스로틀밸브를 개방위치로부터 상기 아이들 위치로 닫고 엔진속도가 제1의 소정 회전속도(r.p.m) 레벨이하일 경우 엔진에 대한 연료공급을 중단하는 내연기관의 제어시스템에 있어서,The internal combustion engine is provided with a suction manifold, a throttle valve disposed in the suction manifold and opened and closed between an idle position and a fully open position, and a fuel in the air flow disposed upstream of the throttle valve and passing through the suction manifold. An ignition system including an electrically operated fuel injector for mixing the injected fuel with air in the intake manifold to produce an air fuel mixture sucked into the engine cylinder, and an ignition plug for igniting the air fuel mixture in each engine cylinder. A control system electrically connected to the fuel injection unit and the ignition system, the control unit electrically connected to the control unit to detect the position of the throttle valve and to position the throttle valve when in the idle position. A throttle position sensor including an idle switch for detecting a; An air flow meter electrically connected to detect the air flow rate through the intake manifold and flowing into the engine, and an engine speed sensor electrically connected to the control unit to detect the engine speed, wherein the control unit is connected to the air flow meter. The fuel supply speed passing through the fuel injector is determined based on the engine suction air flow rate detected by the engine speed and the engine speed detected by the engine speed sensor, and the power is supplied to the fuel injector at the speed determined by the control unit. The injector injects fuel, and the control unit shuts off the power to the fuel injector during engine deceleration to close the throttle valve from the open position to the idle position and the engine speed is below the first predetermined rpm level. Control system of internal combustion engine to stop fuel supply to engine In the system, 상기 제어유닛은(a) 상기 스로틀밸브가 상기 아이들 위치에 아직 있는가, 및 (b) 엔진 속도가 제1의 소정 회전속도 (r.p.m) 레벨보다 낮은 제2의 소정 회전속도(r.p.m) 레벨까지 낮아졌는가를 판단하는 판정 수단을 포함하며, 또한 상기 제어유닛은 다시 상기 연료분사기에 전원을 인가하여 그 때 검출된 엔진흡입 공기유속과 엔진속도 모두에 비하여 증가된 속도로 흡입매니폴드내로 연료공급을 재개하는 동시에 질문(a) 및 (b)에 대한 응답이 모두 YES일 때 점화시간을 지연시키고, 재개된 연료공급속도의 증가와 점화시간의 지연이 연료공급을 재개한 시점부터 소정의 시간내에 점차로 소멸하는 것을 특징으로 하는 엔진제어시스템.The control unit includes (a) the throttle valve is still in the idle position, and (b) the engine speed is lowered to a second predetermined rotational speed (rpm) level that is lower than the first predetermined rotational speed (rpm) level. And determining means for determining a power supply to the fuel injector again to resume fuel supply into the intake manifold at an increased speed relative to both the engine intake air flow rate and the engine speed detected at that time. At the same time, when both the answers to questions (a) and (b) are YES, the ignition time is delayed, and the increase in the resumed fuel supply rate and the delay in the ignition time gradually disappear within a predetermined time from the point of restarting the fuel supply. Engine control system, characterized in that. ※ 참고사항: 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the original application.
KR870003345A 1986-04-09 1987-04-08 Engine control system KR870010297A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61081650A JPS62240452A (en) 1986-04-09 1986-04-09 Fuel controller
JP81650 1986-04-09

Publications (1)

Publication Number Publication Date
KR870010297A true KR870010297A (en) 1987-11-30

Family

ID=13752209

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870003345A KR870010297A (en) 1986-04-09 1987-04-08 Engine control system

Country Status (3)

Country Link
EP (1) EP0241008A3 (en)
JP (1) JPS62240452A (en)
KR (1) KR870010297A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327882C1 (en) * 1993-08-19 1994-09-29 Audi Ag Secondary air reserve system
JP4466864B2 (en) * 2005-09-21 2010-05-26 三菱自動車工業株式会社 Control device for internal combustion engine
JP4597156B2 (en) * 2007-03-19 2010-12-15 トヨタ自動車株式会社 Control device for torque demand type internal combustion engine
JP4548486B2 (en) * 2008-01-09 2010-09-22 トヨタ自動車株式会社 Control device for internal combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145819A (en) * 1978-05-04 1979-11-14 Nippon Denso Co Ltd Engine control
JPS5546057A (en) * 1978-09-29 1980-03-31 Hitachi Ltd Electronic engine controller
JPS59704B2 (en) * 1979-09-28 1984-01-07 日産自動車株式会社 Ignition timing control device
JPS5746032A (en) * 1980-09-03 1982-03-16 Toyota Motor Corp Method of control right after stoppage of fuel cut-off
US4442818A (en) * 1980-12-29 1984-04-17 Hitachi, Ltd. Fuel injection apparatus for internal combustion engines
JPS57124033A (en) * 1981-01-26 1982-08-02 Nissan Motor Co Ltd Fuel controller for internal combustion engine
JPS57188736A (en) * 1981-05-08 1982-11-19 Honda Motor Co Ltd Fuel supply controller for internal combustion engine

Also Published As

Publication number Publication date
JPS62240452A (en) 1987-10-21
EP0241008A2 (en) 1987-10-14
EP0241008A3 (en) 1987-11-19

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E902 Notification of reason for refusal
WITB Written withdrawal of application