JPH0559263B2 - - Google Patents
Info
- Publication number
- JPH0559263B2 JPH0559263B2 JP5059884A JP5059884A JPH0559263B2 JP H0559263 B2 JPH0559263 B2 JP H0559263B2 JP 5059884 A JP5059884 A JP 5059884A JP 5059884 A JP5059884 A JP 5059884A JP H0559263 B2 JPH0559263 B2 JP H0559263B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen concentration
- concentration sensor
- current type
- limiting current
- type oxygen
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 105
- 239000001301 oxygen Substances 0.000 claims description 105
- 229910052760 oxygen Inorganic materials 0.000 claims description 105
- 238000002485 combustion reaction Methods 0.000 claims description 43
- 239000000446 fuel Substances 0.000 claims description 33
- 230000006866 deterioration Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 21
- 238000012545 processing Methods 0.000 description 21
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000000872 buffer Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F02D41/02—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
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
- F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
- F02D41/1476—Biasing of the sensor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5059884A JPS60192849A (ja) | 1984-03-15 | 1984-03-15 | 限界電流型酸素濃度センサの劣化検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5059884A JPS60192849A (ja) | 1984-03-15 | 1984-03-15 | 限界電流型酸素濃度センサの劣化検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60192849A JPS60192849A (ja) | 1985-10-01 |
| JPH0559263B2 true JPH0559263B2 (enrdf_load_stackoverflow) | 1993-08-30 |
Family
ID=12863405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5059884A Granted JPS60192849A (ja) | 1984-03-15 | 1984-03-15 | 限界電流型酸素濃度センサの劣化検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60192849A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177575A (ja) * | 1994-12-28 | 1996-07-09 | Nippondenso Co Ltd | 内燃機関の空燃比制御装置の自己診断装置 |
| US5781878A (en) * | 1995-06-05 | 1998-07-14 | Nippondenso Co., Ltd. | Apparatus and method for diagnosing degradation or malfunction of oxygen sensor |
| JP4577160B2 (ja) * | 2005-09-01 | 2010-11-10 | トヨタ自動車株式会社 | 排気ガスセンサの故障検出装置 |
| KR100828797B1 (ko) | 2006-12-08 | 2008-05-09 | 현대자동차주식회사 | 디젤 차량에 장착된 람다 센서의 이상 점검 방법 |
-
1984
- 1984-03-15 JP JP5059884A patent/JPS60192849A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60192849A (ja) | 1985-10-01 |