KR960023712A - Device per failure of crank angle sensor and its method - Google Patents

Device per failure of crank angle sensor and its method Download PDF

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Publication number
KR960023712A
KR960023712A KR1019940039698A KR19940039698A KR960023712A KR 960023712 A KR960023712 A KR 960023712A KR 1019940039698 A KR1019940039698 A KR 1019940039698A KR 19940039698 A KR19940039698 A KR 19940039698A KR 960023712 A KR960023712 A KR 960023712A
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South Korea
Prior art keywords
crank angle
cylinder
set value
signal
pulses
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KR1019940039698A
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Korean (ko)
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KR0180376B1 (en
Inventor
김남종
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전성원
현대자동차 주식회사
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Priority to KR1019940039698A priority Critical patent/KR0180376B1/en
Publication of KR960023712A publication Critical patent/KR960023712A/en
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Publication of KR0180376B1 publication Critical patent/KR0180376B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/22Safety or indicating devices for abnormal conditions
    • F02D41/222Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/009Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/22Safety or indicating devices for abnormal conditions
    • F02D2041/228Warning displays

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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

엔진구동에 따라 회전하는 크랭크축의 회전수를 감지하여 그에 해당하는 전기적인 신호를 출력하는 크랭크각 감지수단과;차량주행상태에 따라 작동하는 실린더를 각각 감지하여 각 실린더에 해당하는 전기적인 신호를 출력하는 기통 감지수단과; 상기 기통감지수단에서 출력되는 신호에 따라 현재 동력행정을 수행하는 실린더를 판별한 다음, 상기 판별된 실린더 감지신호가 출력되는 동안 크랭크각 감지수단에서 출력되는 신호의 펄스수를 카운트한 다음, 크랭크각 감지수단이 정상작동하는 경우에 판별된 실린더가 동력행정을 수행하는 동안 감지되는 크랭크각 신호의 펄스수인 설정값을 판독하여, 상기 카운트된 펄스수와 상기 설정값의 일치여부를 판단하여, 상기 카운트된 펄스수가 상기 설정값과 일치하지 않는 경우에 크랭크각 감지수단에 이상이 발생한 것으로 판단하고, 상기 카운트된 펄스수와 설정값이 일치하는 경우에는 계속하여 다음 동력행정을 수행하는 실림더를 감지하는 엔진 제어수단으로 이루어지는 크랭크각 센서의 고장진단 장치는, 크랭크각 센서에이물질로 인하여 정확한 신호가 출력되지 않는 경우와 엔진스톨로 인한 일시적인 크랭크각 신호출력 정지상태여부를 판단하여, 보다 정확하게 크랭크각 센서의 고장여부를 판단하여 오판을 방지할 수 있으며 그 효과적인 방법을 제공할 수 있다.Crank angle detection means for detecting the number of revolutions of the crankshaft rotates according to the engine drive and outputs an electrical signal corresponding to the engine; Outputs an electrical signal corresponding to each cylinder by detecting each cylinder operating in accordance with the vehicle driving state Cylinder sensing means; After determining the cylinder performing the current power stroke according to the signal output from the cylinder sensing means, counting the number of pulses of the signal output from the crank angle sensing means while the determined cylinder sensing signal is output, and then crank angle Read the set value which is the number of pulses of the crank angle signal detected while the cylinder determined in the normal operation of the sensing means performs the power stroke, and determines whether the counted number of pulses matches the set value, If the counted pulse number does not coincide with the set value, it is determined that an abnormality has occurred in the crank angle detecting means. If the counted pulse number coincides with the set value, the cylinder which continuously performs the next power stroke is detected. The fault diagnosis device of the crank angle sensor composed of the engine control means is accurate due to the foreign matter in the crank angle sensor. When a signal is not output and the temporary crank angle signal output stop state due to the engine stall is judged, the failure of the crank angle sensor can be judged more accurately, thereby preventing a false positive and providing an effective method.

Description

크랭크각 센서의 고장진당 장치 및 그 방법Device per failure of crank angle sensor and its method

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

제1도는 이 발명의 실시예에 따른 크랭크각 센서의 고장진단 장치의 구성블럭도이고, 제2도는 이 발명의 실시예에 따른 크랭크각 감지부와 기통 감지부의 상세도이고, 제3도는 이 발명의 실시예에 따른 각 센서신호의 출력 파형도이고, 제4도는 이 발명의 실시예에 따른 크랭크각 센서의 고장진단 장치의 동작 순서도이다.1 is a block diagram of a device for diagnosing a failure of a crank angle sensor according to an embodiment of the present invention, and FIG. 2 is a detailed view of a crank angle detection unit and a cylinder detection unit according to an embodiment of the present invention, and FIG. 4 is an output waveform diagram of each sensor signal according to an embodiment of the present invention, and FIG. 4 is an operation flowchart of a failure diagnosis apparatus for a crank angle sensor according to an embodiment of the present invention.

Claims (5)

엔진구동에 따라 회전하는 크랭크축의 회전수를 감지하여 그에 해당하는 전기적인 신호를 출력하는 크랭크각 감지수단과; 차량주행상태에 따라 작동하는 실린더를 각각 감지하여 각 실린더에 해당하는 전기적인 신호를 출력하는기통 감지수단과; 상기 기통감지수단에서 출력되는 신호에 따라 현재 동력행정을 수행하는 실린더를 판별한 다음, 상기판별된 실린더 감지신호가 출력되는 동안 크랭크각 감지수단에서 출력되는 신호의 펄스수를 카운트한 다음, 크랭크각 감지수단이 정상작동하는 경우에 판별된 실린더가 동력행정을 수행하는 동안 감지되는 크랭크각 신호의 펄스수인 설정값을판독하여, 상기 카운트된 펄스수와 상기 설정값의 일치여부를 판단하여, 상기 카운트된 펄스수가 상기 설정값과 일치하지않는 경우에 크랭크각 감지수단에 이상이 발생한 것으로 판단하고, 상기 카운트된 펄스수와 설정값이 일치하는 경우에는계속하여 다음 동력행정을 수행하는 실림더를 감지하는 엔진 제어수단으로 이루어지는 것을 특징으로 하는 크랭크각 센서의 고장진단 장치.Crank angle detection means for detecting the number of revolutions of the crankshaft rotating according to the engine driving and outputting an electrical signal corresponding thereto; Cylinder sensing means for sensing cylinders operating according to the vehicle driving state and outputting an electrical signal corresponding to each cylinder; After determining the cylinder performing the current power stroke according to the signal output from the cylinder sensing means, counting the number of pulses of the signal output from the crank angle sensing means while the determined cylinder sensing signal is output, and then crank angle The cylinder reads the set value which is the number of pulses of the crank angle signal detected during the power stroke, and determines whether or not the counted number of pulses coincides with the set value. When the counted pulse number does not coincide with the set value, it is determined that an abnormality has occurred in the crank angle detecting means. When the counted pulse number and the set value coincide, the cylinder which continuously performs the next power stroke is detected. Crank angle sensor failure diagnosis apparatus comprising an engine control means. 제1항에 있어서, 카운트되는 크랭크각 신호 펄스수가 상기 설정값과 일치하지 않는 경우에 크랭크각 감지수단에 이상이 발생하였음을 나타내기 위한 경고수단을 더 포함하여 이루어지는 것을 특징으로 하는 크랭크각 센서의 고장진단 장치.2. The crank angle sensor according to claim 1, further comprising a warning means for indicating that an abnormality has occurred in the crank angle detecting means when the number of crank angle signal pulses to be counted does not match the set value. Troubleshooting device. 제1항에 있어서, 상기한 크랭크각 감지수단과 기통감지수단이 크랭크축에 장착되고 크랭크각의 회전수를감지하기 위한 다수의 슬릿이 외측에 형성되어 있고, 각 실린더를 판별하기 위한 슬릿이 내측에 형성되어 있는 금속제 원판과 상기 외측의 슬릿을 검출하기 발광 다이오드와 포토 트랜지스터로 이루어진 크랭크각 감지수단과, 상기 내측의 슬릿을 검출하기 위한 발광다이오드와 포토 트랜지스터로 이루어진 기통 감지수단으로 이루어지는 것을 특징으로 하는 크랭크각 센서의 고장진단 장치.2. The apparatus according to claim 1, wherein the crank angle detecting means and the cylinder detecting means are mounted on the crankshaft, and a plurality of slits for sensing the rotation speed of the crank angle are formed on the outside, and the slits for discriminating each cylinder are on the inside. And a crank angle sensing means consisting of a light emitting diode and a photo transistor, and a cylinder sensing means comprising a light emitting diode and a photo transistor for detecting the inner slit. Crank angle sensor fault diagnosis device. 자동차에 시동이 걸려 전원이 인가되면 모든 사용변수를 초기화한 다음, 기통감지수단에서 출력되는 신호에 따라 현재 동력행정을 수행하는 실린더를 감지하는 단계와; 상기에서 현재 동력행정을 수행하는 실린더를 감지한 다음기통감지수단에서 감지신호가 출력되는 동안 크랭크각 신호의 펄스수를 카운트하는 단계와; 상기에서 카운트된 크랭크각신호 펄스수와, 크랭크각 감지수단이 정상작동하는 경우에 판별된 실린더가 동력행정을 수행하는 동안 감지되는 크랭크각신호수인 설정값을 판독하여 일치여부를 판단하는 단계와; 상기 카운트된 크랭크각 신호 펄스수가 상기 설정값과 일치하지 않는 경우에 크랭크각 감지수단에 이상이 발생한 것으로 판단하고, 상기 카운트된 펄스구와 설정값이 일치하는 경우에는 계속하여 다음 동력행정을 수행하는 실린더를 감지하는 단계로 이루어지는 것을 특징으로 하는 크랭크각 센서의 고장진단 방법.Initializing all used parameters when a vehicle is started and power is applied, and then detecting a cylinder currently performing a power stroke according to a signal output from the cylinder sensing means; Counting the number of pulses of the crank angle signal while detecting a cylinder for performing the current power stroke and then outputting a detection signal from the cylinder sensing means; Reading the counted number of crank angle signal pulses and a set value which is the number of crank angle signals detected during the power stroke of the cylinder determined when the crank angle detection means operates normally, and determining whether to match with each other; When the counted number of crank angle signal pulses does not match the set value, it is determined that an abnormality has occurred in the crank angle detecting means, and when the counted pulse port and the set value match, the cylinder continues to perform the next power stroke. Crank angle sensor failure diagnosis method comprising the steps of detecting. 제4항에 있어서, 카운트되는 크랭크각 신호 펄스수가 상기 설정값과 일치하지 않는 경우에 크랭크각 감지수단에 이상이 발생하였음을 나타내는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 크랭크각 센서의 고장진단 방법.5. The method of claim 4, further comprising indicating that an error has occurred in the crank angle detecting means when the number of crank angle signal pulses to be counted does not match the set value. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940039698A 1994-12-30 1994-12-30 Fault diagnosis apparatus of crank angle sensor KR0180376B1 (en)

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KR1019940039698A KR0180376B1 (en) 1994-12-30 1994-12-30 Fault diagnosis apparatus of crank angle sensor

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Application Number Priority Date Filing Date Title
KR1019940039698A KR0180376B1 (en) 1994-12-30 1994-12-30 Fault diagnosis apparatus of crank angle sensor

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KR960023712A true KR960023712A (en) 1996-07-20
KR0180376B1 KR0180376B1 (en) 1999-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100832235B1 (en) * 2007-01-29 2008-05-23 지멘스 오토모티브 주식회사 Apparatus and method for detecting backlashing engin of car

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444062B1 (en) * 2002-05-09 2004-08-11 현대자동차주식회사 Method of protecting engine stall for vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100832235B1 (en) * 2007-01-29 2008-05-23 지멘스 오토모티브 주식회사 Apparatus and method for detecting backlashing engin of car

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