KR970044693A - Oxygen sensor failure diagnosis device and method - Google Patents
Oxygen sensor failure diagnosis device and method Download PDFInfo
- Publication number
- KR970044693A KR970044693A KR1019950058633A KR19950058633A KR970044693A KR 970044693 A KR970044693 A KR 970044693A KR 1019950058633 A KR1019950058633 A KR 1019950058633A KR 19950058633 A KR19950058633 A KR 19950058633A KR 970044693 A KR970044693 A KR 970044693A
- Authority
- KR
- South Korea
- Prior art keywords
- oxygen sensor
- reference value
- signal
- engine speed
- failure diagnosis
- Prior art date
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- Measuring Oxygen Concentration In Cells (AREA)
Abstract
본 발명은 산소 센서 고장 진단 장치 및 그 방법에 관한 것으로서, 수온, 엔진 회전수(RPM), 엔진 부하(load)등의 공기-연료비(A/F) 피드백(feedback)조건에서 산소 센서 신호가 일정 지연 시간동안 변화없이 고정되어 있을 때, 산소 센서의 고장을 판정하는 장치 및 그 방법이다.The present invention relates to an oxygen sensor failure diagnosis apparatus and a method thereof, wherein the oxygen sensor signal is constant under air-fuel ratio (A / F) feedback conditions such as water temperature, engine speed (RPM), and engine load. An apparatus and method for determining a failure of an oxygen sensor when fixed without change for a delay time.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명에 의한 산소 센서 고장 진단 방법의 동작 순서도이다.2 is an operation flowchart of the oxygen sensor failure diagnosis method according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950058633A KR970044693A (en) | 1995-12-27 | 1995-12-27 | Oxygen sensor failure diagnosis device and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950058633A KR970044693A (en) | 1995-12-27 | 1995-12-27 | Oxygen sensor failure diagnosis device and method |
Publications (1)
Publication Number | Publication Date |
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KR970044693A true KR970044693A (en) | 1997-07-26 |
Family
ID=66619670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950058633A KR970044693A (en) | 1995-12-27 | 1995-12-27 | Oxygen sensor failure diagnosis device and method |
Country Status (1)
Country | Link |
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KR (1) | KR970044693A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100412694B1 (en) * | 2001-10-09 | 2003-12-31 | 현대자동차주식회사 | Method of checking mis-combination of o2 sensor |
KR100828797B1 (en) * | 2006-12-08 | 2008-05-09 | 현대자동차주식회사 | Checking method for disorder of lambda sensor built in diesel vehicle |
-
1995
- 1995-12-27 KR KR1019950058633A patent/KR970044693A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100412694B1 (en) * | 2001-10-09 | 2003-12-31 | 현대자동차주식회사 | Method of checking mis-combination of o2 sensor |
KR100828797B1 (en) * | 2006-12-08 | 2008-05-09 | 현대자동차주식회사 | Checking method for disorder of lambda sensor built in diesel vehicle |
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E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |