KR970044804A - Cylinder discrimination and reference angle setting method with noise prevention function - Google Patents

Cylinder discrimination and reference angle setting method with noise prevention function Download PDF

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Publication number
KR970044804A
KR970044804A KR1019950068350A KR19950068350A KR970044804A KR 970044804 A KR970044804 A KR 970044804A KR 1019950068350 A KR1019950068350 A KR 1019950068350A KR 19950068350 A KR19950068350 A KR 19950068350A KR 970044804 A KR970044804 A KR 970044804A
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KR
South Korea
Prior art keywords
cylinder
noise
crank angle
counter
count value
Prior art date
Application number
KR1019950068350A
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Korean (ko)
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KR100273555B1 (en
Inventor
이원준
Original Assignee
전성원
현대자동차 주식회사
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Priority to KR1019950068350A priority Critical patent/KR100273555B1/en
Publication of KR970044804A publication Critical patent/KR970044804A/en
Application granted granted Critical
Publication of KR100273555B1 publication Critical patent/KR100273555B1/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
    • F02D41/008—Controlling each cylinder individually
    • 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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals

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

Abstract

이 발명은 크랭크각 센서(Crank Angle Sensor)와 홀 센서(Hall Sensor)를 구비한 엔진제어유닛(ECU : Engine Control Unit)에 적용되는 노이즈 방지 기능을 구비한 기통 판별 및 기준각 설정방법에 관한 것으로서, 크랭크각 센서에서 검출되는 크랭크각 신호 및 홀 센서에서 검출되는 실린더 신호에 노이즈가 포함되어 있을 경우에는 업카운트 동작을 중지하고 플래그를 세트시켜서 에러가 발생하였음을 알리며, 상기 각 신호에 노이즈가 포함되어 있지 않을 경우에만 정상적인 카운트 동작 및 기통판별 동작이 수행되도록 함으로써 엔진제어유닛에서 기통 판별 및 기준각 설정의 오류가 발생하는 것을 방지할 수 있다.The present invention relates to a cylinder discrimination method and a reference angle setting method having an anti-noise function applied to an engine control unit (ECU) having a crank angle sensor and a hall sensor. If the crank angle signal detected by the crank angle sensor and the cylinder signal detected by the hall sensor contain noise, the up count operation is stopped and a flag is set to indicate that an error has occurred. Normal count operation and cylinder discrimination operation can be performed only when it is not done, so that an error in cylinder determination and reference angle setting can be prevented from occurring in the engine control unit.

Description

노이즈 방지기능을 구비한 기통 판별 및 기준각 설정방법Cylinder discrimination and reference angle setting method with noise prevention function

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

제1도는 이 발명의 실시예에 따른 기통 판별 및 기준각 설정방법을 설명하는 순서도이고,1 is a flowchart illustrating a method of determining a cylinder and setting a reference angle according to an embodiment of the present invention.

제2도는 크랭크각 센서의 신호에 노이즈가 포함되어 있을 경우 이 발명의 방법이 적용되는 것을 도시하는 파형도이다.2 is a waveform diagram showing that the method of the present invention is applied when noise is included in a signal of a crank angle sensor.

Claims (1)

크랭크각 신호에 의한 인터럽트가 걸릴 경우, 크랭크각 신호에 노이즈가 포함되어 있는지 판단하며, 노이즈가 있으면 크랭크각 노이즈 플래그를 세트시키는 제1단계와; 상기 제1단계에서 크랭크각 신호에 노이즈가 포함되어 있지 않으면, 크랭크각 카운터의 카운트 값을 하나 증가시키며, 실린더 신호가 하이레벨일 경우에 실린더 신호에 노이즈가 포함되어 있는지 판단하는 제2단계와; 상기 제2단계에서 실린더 신호에 노이즈가 포함되어 있으면, 실린더 카운터의 카운트 값을 '0' 으로 세트시키고 실린더 노이즈 플래그를 세트시키며, 상기 제2단계에서 노이즈가 포함되어 있지 않으면, 실린더 카운터의 카운트 값을 하나 증가시키는 제3단계와; 상기 제1단계에서 크랭크각 신호에 의한 인터럽트가 걸리지 않고 실린더 신호에 의한 인터럽트가 걸릴 경우, 실린더 카운트 값이 '0' 인지를 판단하며, 실린더 카운터의 카운트 값이 '0' 일 경우에 실린더 노이즈를 세트시키는 제4단계와; 상기 제4단계에서 실린더 카운터의 카운트 값이 '0' 이 아닐 경우, 실린더 카운터의 카운트 값으로부터 제1실린더인지 판단하며, 제1실린더일 경우에는 실린더 기통 및 실린더 카운터를 세트시키고, 제1실린더가 아닐 경우에는 실린더 기통을 하나 증가시킨 후 실린더 카운터를 세트시키는 제5단계를 포함하여 이루어지는 것을 특징으로 하는 노이즈 방지 기능을 구비한 기통 판별 및 기준각 설정방법.Determining whether a crank angle signal includes noise when an interrupt is generated by the crank angle signal, and setting a crank angle noise flag if there is noise; If the crank angle signal does not contain noise in the first step, increasing the count value of the crank angle counter by one; and determining whether the cylinder signal contains noise when the cylinder signal is at a high level; If the cylinder signal contains noise in the second step, set the count value of the cylinder counter to '0' and set the cylinder noise flag. If the noise is not included in the second step, count value of the cylinder counter A third step of increasing one; When the interrupt by the crank angle signal is interrupted by the cylinder signal in the first step, it is determined whether the cylinder count value is '0', and when the count value of the cylinder counter is '0', the cylinder noise is determined. A fourth step of setting; If the count value of the cylinder counter is not '0' in the fourth step, it is determined whether the cylinder count is the first cylinder from the count value of the cylinder counter, and in the case of the first cylinder, the cylinder cylinder and the cylinder counter are set, and the first cylinder is If not, the cylinder discrimination and reference angle setting method having a noise prevention function comprising a fifth step of setting the cylinder counter after increasing one cylinder cylinder.
KR1019950068350A 1995-12-30 1995-12-30 Cylinder determining and referance angle determining method having noise protecting function KR100273555B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950068350A KR100273555B1 (en) 1995-12-30 1995-12-30 Cylinder determining and referance angle determining method having noise protecting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950068350A KR100273555B1 (en) 1995-12-30 1995-12-30 Cylinder determining and referance angle determining method having noise protecting function

Publications (2)

Publication Number Publication Date
KR970044804A true KR970044804A (en) 1997-07-26
KR100273555B1 KR100273555B1 (en) 2000-12-15

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KR1019950068350A KR100273555B1 (en) 1995-12-30 1995-12-30 Cylinder determining and referance angle determining method having noise protecting function

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KR100273555B1 (en) 2000-12-15

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