CA1112740A - Electronic closed loop air-fuel ratio control system for use with internal combustion engine - Google Patents
Electronic closed loop air-fuel ratio control system for use with internal combustion engineInfo
- Publication number
- CA1112740A CA1112740A CA271,550A CA271550A CA1112740A CA 1112740 A CA1112740 A CA 1112740A CA 271550 A CA271550 A CA 271550A CA 1112740 A CA1112740 A CA 1112740A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- level
- level signal
- comparator
- air
- 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
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 58
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 24
- 230000004044 response Effects 0.000 claims description 9
- 230000001419 dependent effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 29
- 239000003990 capacitor Substances 0.000 description 17
- 239000000306 component Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- RWFBQHICRCUQJJ-NUHJPDEHSA-N (S)-nicotine N(1')-oxide Chemical compound C[N+]1([O-])CCC[C@H]1C1=CC=CN=C1 RWFBQHICRCUQJJ-NUHJPDEHSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010792 warming 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
- F02D41/02—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
- F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
- F02D41/1479—Using a comparator with variable reference
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51-13251 | 1976-02-12 | ||
| JP1325176A JPS5297029A (en) | 1976-02-12 | 1976-02-12 | Air fuel ratio controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1112740A true CA1112740A (en) | 1981-11-17 |
Family
ID=11827978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA271,550A Expired CA1112740A (en) | 1976-02-12 | 1977-02-11 | Electronic closed loop air-fuel ratio control system for use with internal combustion engine |
Country Status (4)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2805805C2 (de) * | 1978-02-11 | 1989-07-20 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und Einrichtung zum Betrieb einer Kraftstoffversorgungsanlage mit Lambda-Regelung |
| JPS5591745A (en) * | 1978-12-28 | 1980-07-11 | Nissan Motor Co Ltd | Controlling device for air-fuel ratio of internal conbustion engine |
| JPS55161932A (en) * | 1979-06-04 | 1980-12-16 | Toyota Motor Corp | Air-fuel ratio controller |
| JPS5915651A (ja) * | 1982-07-15 | 1984-01-26 | Hitachi Ltd | 空燃比制御装置 |
| JPH0697002B2 (ja) * | 1984-11-30 | 1994-11-30 | 日本電装株式会社 | 空燃比センサの良否判定装置 |
| JP2806501B2 (ja) * | 1987-03-23 | 1998-09-30 | 富士重工業株式会社 | エンジンの空燃比制御装置 |
| FR2848608B1 (fr) * | 2002-12-17 | 2005-03-18 | Renault Sa | Procede de controle du fonctionnement d'une sonde associee a des moyens de purification des gaz d'echappement d'un moteur a combustion interne et dispositif associe |
| US9638126B2 (en) * | 2013-04-12 | 2017-05-02 | Delbert Vosburg | Electronically controlled lean out device for mechanical fuel injected engines |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2151715A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-09-10 | 1973-04-20 | Sopromi Soc Proc Modern Inject | |
| DE2150187A1 (de) * | 1971-10-08 | 1973-04-12 | Bosch Gmbh Robert | Mit luftmengenmessung arbeitende, elektrisch gesteuerte kraftstoffeinspritzanlage fuer brennkraftmaschinen |
| DE2204292B2 (de) * | 1972-01-29 | 1978-02-02 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und vorrichtung zur verminderung von schaedlichen anteilen der abgasemission von brennkraftmaschinen |
| US3916170A (en) * | 1973-04-25 | 1975-10-28 | Nippon Denso Co | Air-fuel ratio feed back type fuel injection control system |
| JPS5326253B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-05-16 | 1978-08-01 | ||
| US3915135A (en) * | 1973-07-02 | 1975-10-28 | Ford Motor Co | Circuit for converting a temperature dependent input signal to a temperature independent output signal |
| JPS5053722A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-09-12 | 1975-05-13 | ||
| DE2401417C2 (de) * | 1974-01-12 | 1981-10-01 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zur Entgiftung der Abgase einer Brennkraftmaschine |
| GB1515734A (en) * | 1974-10-21 | 1978-06-28 | Nissan Motor | Apparatus for controlling the ratio of air to fuel of air-fuel mixture of internal combustion engine |
| JPS5950862B2 (ja) * | 1975-08-05 | 1984-12-11 | 日産自動車株式会社 | 空燃比制御装置 |
| US4067718A (en) * | 1975-11-12 | 1978-01-10 | American Cyanamid Company | Method for controlling the relative stem growth of plants |
| US4112880A (en) * | 1975-12-27 | 1978-09-12 | Nissan Motor Company, Limited | Method of and mixture control system for varying the mixture control point relative to a fixed reference |
| JPS5297027A (en) * | 1976-02-09 | 1977-08-15 | Nissan Motor Co Ltd | Air fuel ratio controller |
| JPS52139820A (en) * | 1976-05-18 | 1977-11-22 | Toyota Motor Corp | Exhaust gas purifier for internal combustion engine |
-
1976
- 1976-02-12 JP JP1325176A patent/JPS5297029A/ja active Granted
-
1977
- 1977-02-11 DE DE19772705838 patent/DE2705838A1/de not_active Ceased
- 1977-02-11 CA CA271,550A patent/CA1112740A/en not_active Expired
- 1977-02-11 US US05/767,988 patent/US4215656A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5297029A (en) | 1977-08-15 |
| DE2705838A1 (de) | 1977-08-18 |
| JPS573818B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-01-22 |
| US4215656A (en) | 1980-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |