KR19980052997A - 산소 센서 활성화 판단 방법 - Google Patents
산소 센서 활성화 판단 방법 Download PDFInfo
- Publication number
- KR19980052997A KR19980052997A KR1019960072033A KR19960072033A KR19980052997A KR 19980052997 A KR19980052997 A KR 19980052997A KR 1019960072033 A KR1019960072033 A KR 1019960072033A KR 19960072033 A KR19960072033 A KR 19960072033A KR 19980052997 A KR19980052997 A KR 19980052997A
- Authority
- KR
- South Korea
- Prior art keywords
- oxygen sensor
- state
- voltage signal
- oxygen
- lean
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000001301 oxygen Substances 0.000 title claims abstract description 69
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 69
- 230000004913 activation Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000000446 fuel Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims (3)
- 배기 가스 중에 포함되어 있는 산소의 농도를 측정하고 측정된 산소 농도에 해당하는 전압 신호를 출력하는 산소 센서와, 상기 산소 센서로부터 출력되는 전압 신호를 입력받고, 상기 입력된 전압 신호가 린 판단 기준 신호보다 작으면 린 상태로 판단하고, 리치 판단 기준 신호보다 크면 리치 상태로 판단하는 제어 수단을 포함하는 자동차에서,계수를 일정값으로 초기화한 후,상기 산소 센서로부터 입력되는 전압 신호가 린 상태 또는 리치 상태이고, 상기 상태가 최소 판단 시간보다는 길게, 최대 판단 시간보다는 짧게 지속되면 상기 계수를 증가시킨 후, 상기 계수가 활성화 판단값보다 커질 때부터 상기 산소 센서를 활성화 상태로 판단하는 것과,상기 산소 센서로부터 입력되는 전압 신호가 린 상태 또는 리치 상태이고, 상기 상태가 최대 판단 시간보다 길게 지속되면 상기 산소 센서를 불활성화 상태로 판단하는 것을 특징으로 하는 산소 센서 활성화 판단 방법.
- 청구항 1에 있어서, 상기한 계수는 0으로 초기화되고, 1씩 증가되는 것을 특징으로 하는 산소 센서 활성화 판단 방법.
- 청구항 2에 있어서, 상기 산소 센서를 불황성화로 판단할 때, 상기 계수를 0으로 셋팅하는 것을 특징으로 하는 산소 센서 활성화 판단 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960072033A KR100273526B1 (ko) | 1996-12-26 | 1996-12-26 | 산소 센서 활성화 판단 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960072033A KR100273526B1 (ko) | 1996-12-26 | 1996-12-26 | 산소 센서 활성화 판단 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980052997A true KR19980052997A (ko) | 1998-09-25 |
KR100273526B1 KR100273526B1 (ko) | 2000-12-15 |
Family
ID=19490916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960072033A KR100273526B1 (ko) | 1996-12-26 | 1996-12-26 | 산소 센서 활성화 판단 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100273526B1 (ko) |
-
1996
- 1996-12-26 KR KR1019960072033A patent/KR100273526B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100273526B1 (ko) | 2000-12-15 |
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