KR960018184A - True engine detection system of automobile engine - Google Patents

True engine detection system of automobile engine Download PDF

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Publication number
KR960018184A
KR960018184A KR1019940029198A KR19940029198A KR960018184A KR 960018184 A KR960018184 A KR 960018184A KR 1019940029198 A KR1019940029198 A KR 1019940029198A KR 19940029198 A KR19940029198 A KR 19940029198A KR 960018184 A KR960018184 A KR 960018184A
Authority
KR
South Korea
Prior art keywords
state
time
normal
combustion
ncy1
Prior art date
Application number
KR1019940029198A
Other languages
Korean (ko)
Other versions
KR100215664B1 (en
Inventor
홍재희
Original Assignee
한승준
기아자동차 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 한승준, 기아자동차 주식회사 filed Critical 한승준
Priority to KR1019940029198A priority Critical patent/KR100215664B1/en
Publication of KR960018184A publication Critical patent/KR960018184A/en
Application granted granted Critical
Publication of KR100215664B1 publication Critical patent/KR100215664B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/11—Testing internal-combustion engines by detecting misfire
    • 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
    • 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
    • F02D2200/1015—Engines misfires

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

본 발명은 연소가 안정되지 않은 특정상태로부터 실화상태를 검출하는 시스템에 관한 것으로, 이는 연료의 과도한 분사나 각종센서의 이상 또는 악셀레이터의 이상시동등에 의해 연소가 안정되지 않은 특정상태의 유무판단에 따라 특정상태에 있을 경우 특정상태 최초시간(t1), 특정상태 경과후의 시간(t2) 및 연소사이클(ncy1)타임을 리셋팅한 후 실화판정을 무효로 하고, 특정상태에 있지 않을 경우 특정상태 최초시간(t1)과 연소사이클(ncy1)타임이 정상일 경우를 “0”으로 설정하고 있어 t1, ncy1=0이면 정상상태임을 나타내므로 이와 같이 정상 상태이면 전기통이 정상 연소상태인지를 판단하여 정상이면 특정상태 경과후의 시간(t2) 및 연소사이클(ncy1)타임이 정상, 즉 t2, ncy1=0상태일 경우 실화판정을 실행시키도록 하여 특정상태가 경과된 후의 엔진의 안정영역이 확실하게 판정되고 실화판정의 정도를 향상시킬 수 있도록 한 것이다.The present invention relates to a system for detecting a misfire state from a specific state in which combustion is not stable, which is determined by the presence or absence of a specific state in which combustion is not stabilized due to excessive injection of fuel, abnormality of various sensors, or abnormal starting of an accelerator. If it is in a specific state, the misfire determination is invalid after resetting the initial state of the specific state (t 1 ), the time after the specific state has elapsed (t 2 ), and the combustion cycle (ncy1) time. If the initial time (t 1 ) and the combustion cycle (ncy1) time are normal, it is set to “0”. If t 1 and ncy1 = 0, it indicates that it is in a normal state. after the lapse of the specified state to the normal it is to execute the misfire determination if the specific condition has passed after the time (t 2) and the combustion cycle (ncy1) time is normal, i.e., t 2, ncy1 = 0 state The spirit stable region is reliably determined is one to improve the degree of misfire determination.

Description

자동차엔진의 실화검출시스템True engine detection system of automobile engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (1)

연소가 안정되지 않은 특정상태인지의 여부를 판단하고, 특정상태에 있을 경우 특정상태 최초시간, 특정 상태 경과후의 시간 및 연소사이클타임을 리셋팅한 후 실화판정을 무효로 하고, 특정상태에 있지 않을 경우 특정상태 최초시간과 연소사이클타임이 정상인지를 판단하여 정상일 경우 전기통이 정상 연소상태인지를 파악하고, 정상 연소상태이면 특징 시간경과후의 시간과 연소사이클타임이 정상인지를 판단하여 정상일 경우 실화 판정이 실행되게 한 것을 특징으로 하는 자동차엔진의 실화검출시스템.It is determined whether the combustion is in a certain state that is not stable, and if it is in a specific state, the misfire determination is invalid after resetting the initial time of the specific state, the time after the specific state has elapsed, and the combustion cycle time, and not in the specific state. In this case, it is determined whether the initial state of the specific state and the combustion cycle time are normal. If it is normal, it is determined whether the electric cylinder is in normal combustion state. If it is normal combustion state, it is determined that the time after the elapsed time and the combustion cycle time are normal. A misfire detection system for an automobile engine, characterized in that determination is executed. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940029198A 1994-11-08 1994-11-08 Misfire detecting system of internal combustion engine KR100215664B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940029198A KR100215664B1 (en) 1994-11-08 1994-11-08 Misfire detecting system of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940029198A KR100215664B1 (en) 1994-11-08 1994-11-08 Misfire detecting system of internal combustion engine

Publications (2)

Publication Number Publication Date
KR960018184A true KR960018184A (en) 1996-06-17
KR100215664B1 KR100215664B1 (en) 1999-08-16

Family

ID=19397370

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940029198A KR100215664B1 (en) 1994-11-08 1994-11-08 Misfire detecting system of internal combustion engine

Country Status (1)

Country Link
KR (1) KR100215664B1 (en)

Also Published As

Publication number Publication date
KR100215664B1 (en) 1999-08-16

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