KR970062292A - Method for judging normal operation of exhaust gas recirculation control valve - Google Patents

Method for judging normal operation of exhaust gas recirculation control valve Download PDF

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Publication number
KR970062292A
KR970062292A KR1019960004866A KR19960004866A KR970062292A KR 970062292 A KR970062292 A KR 970062292A KR 1019960004866 A KR1019960004866 A KR 1019960004866A KR 19960004866 A KR19960004866 A KR 19960004866A KR 970062292 A KR970062292 A KR 970062292A
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KR
South Korea
Prior art keywords
control valve
egr control
egr
normal
normal operation
Prior art date
Application number
KR1019960004866A
Other languages
Korean (ko)
Inventor
김영환
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.)
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Publication date
Application filed by 한승준, 기아자동차 주식회사 filed Critical 한승준
Priority to KR1019960004866A priority Critical patent/KR970062292A/en
Publication of KR970062292A publication Critical patent/KR970062292A/en

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  • Exhaust-Gas Circulating Devices (AREA)

Abstract

본 발명은 배기가스 재순환(EGR : Exhaust Gas Recirculation) 제어 밸브의 정상 작동 판단 방법에 관한 것으로, 특히 EGR 제어 밸브내의 압력을 부스트(Boost) 센서를 이용하여 검출하여 이를 기준 EGR 밸브 제어 값과 비교하여 EGR 제어 밸브의 정상 작동 여부를 판단하는 EGR 제어 밸브의 정상 작동 판단 방법에 관한 것이다.The present invention relates to a method for determining normal operation of an exhaust gas recirculation (EGR) control valve, and more particularly, to a method of detecting a normal operation of an exhaust gas recirculation (EGR) control valve by detecting a pressure in an EGR control valve using a boost sensor, The present invention relates to a normal operating determination method for an EGR control valve that determines whether or not the EGR control valve is normally operated.

본 발명은 EGR 제어 밸브 정상 작동 판단 방법은 EGR 제어 밸브가 작동중일 때 부스트 센서에 의해 검출된 EGR 제어 밸브의 압력신호값과 기준값을 비교하는 단계와, 상기 비교 결과 압력신호값이 기준값과 같거나 클 경우 상기 EGR 제어 밸브가 정상인 것으로 판단하고, 상기와 반대인 경우는 상기 EGR 제어 밸브가 고장인 것으로 판단하는 단계와, 상기 판단 결과를 메모리에 기억시킨 후 상기 기억된 값을 점검함에 의해 EGR 제어 밸브의 정상 동작 여부를 진단하는 단계로 구성되는 것을 특징으로 한다.A method of determining normal operation of an EGR control valve includes comparing a pressure signal value of an EGR control valve detected by a boost sensor with a reference value when the EGR control valve is in operation and comparing the pressure signal value with a reference value Determining that the EGR control valve is normal if it is determined that the EGR control valve is normal, and determining that the EGR control valve is malfunctioning if it is determined that the EGR control valve is normal; and storing the determination result in the memory, And diagnosing whether the valve operates normally or not.

Description

배기가스 재순환 제어 밸브의 정상 작동 판단 방법Method for judging normal operation of exhaust gas recirculation control valve

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명에 따른 포텐시오메터 내장형 EGR 제어 밸브를 구비한 EGR 시스템의 개략계통도.FIG. 2 is a schematic diagram of an EGR system equipped with a potentiometer built-in EGR control valve according to the present invention; FIG.

제3도는 본 발명에 따른 EGR 제어 밸브의 정상 작동 판단 방법을 나타낸 흐름도이다.FIG. 3 is a flowchart illustrating a normal operation determination method of an EGR control valve according to the present invention.

Claims (1)

EGR 제어 밸브가 작동중일 때 부스트 센서에 의해 검출된 EGR 제어밸브의 압력신호값과 기준값을 비교하는 단계와, 상기 비교 결과 압력신호값이 기준값과 같거나 클 경우 상기 EGR 제어밸브가 정상인 것으로 판단하고, 상기와 반대인 경우는 상기 EGR 제어 밸브가 고장인 것을 판단하는 단계와, 상기 판단 결과를 메모리에 기억시킨 후 상기 기억된 값을 점검함에 의해 EGR 제어 밸브의 정상 동작 여부를 진단하는 단계로 구성되는 것을 특징으로 하는 EGR 제어 밸브의 정상 작동 판단 방법.Comparing the pressure signal value of the EGR control valve detected by the boost sensor with the reference value when the EGR control valve is in operation and determining that the EGR control valve is normal if the pressure signal value is equal to or greater than the reference value And a step of diagnosing whether the EGR control valve is normally operated by checking whether the EGR control valve is malfunctioning or not, and storing the result of the determination in a memory and checking the stored value Wherein the EGR control valve is operated in a normal operating state. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960004866A 1996-02-27 1996-02-27 Method for judging normal operation of exhaust gas recirculation control valve KR970062292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960004866A KR970062292A (en) 1996-02-27 1996-02-27 Method for judging normal operation of exhaust gas recirculation control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960004866A KR970062292A (en) 1996-02-27 1996-02-27 Method for judging normal operation of exhaust gas recirculation control valve

Publications (1)

Publication Number Publication Date
KR970062292A true KR970062292A (en) 1997-09-12

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KR1019960004866A KR970062292A (en) 1996-02-27 1996-02-27 Method for judging normal operation of exhaust gas recirculation control valve

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KR (1) KR970062292A (en)

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