DE69413784D1 - Electronic system for calculating the air-fuel ratio of an internal combustion engine - Google Patents
Electronic system for calculating the air-fuel ratio of an internal combustion engineInfo
- Publication number
- DE69413784D1 DE69413784D1 DE69413784T DE69413784T DE69413784D1 DE 69413784 D1 DE69413784 D1 DE 69413784D1 DE 69413784 T DE69413784 T DE 69413784T DE 69413784 T DE69413784 T DE 69413784T DE 69413784 D1 DE69413784 D1 DE 69413784D1
- Authority
- DE
- Germany
- Prior art keywords
- calculating
- air
- combustion engine
- internal combustion
- fuel ratio
- 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 - Fee Related
Links
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
- F02D41/1493—Details
- F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
-
- 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
- F02D41/1474—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method by detecting the commutation time of the sensor
-
- 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
-
- 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)
- F02D41/148—Using a plurality of comparators
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2454—Learning of the air-fuel ratio control
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2474—Characteristics of sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO930857A IT1261114B (en) | 1993-11-12 | 1993-11-12 | ELECTRONIC CALCULATION SYSTEM OF THE MIXTURE TITLE. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69413784D1 true DE69413784D1 (en) | 1998-11-12 |
DE69413784T2 DE69413784T2 (en) | 1999-02-25 |
Family
ID=11411876
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69430017T Expired - Fee Related DE69430017T2 (en) | 1993-11-12 | 1994-11-09 | Electronic mixture composition calculation system |
DE69413784T Expired - Fee Related DE69413784T2 (en) | 1993-11-12 | 1994-11-09 | Electronic system for calculating the air-fuel ratio of an internal combustion engine |
DE69427199T Expired - Fee Related DE69427199T2 (en) | 1993-11-12 | 1994-11-09 | Electronic mixture composition calculation system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69430017T Expired - Fee Related DE69430017T2 (en) | 1993-11-12 | 1994-11-09 | Electronic mixture composition calculation system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69427199T Expired - Fee Related DE69427199T2 (en) | 1993-11-12 | 1994-11-09 | Electronic mixture composition calculation system |
Country Status (5)
Country | Link |
---|---|
EP (3) | EP0855498B1 (en) |
BR (1) | BR9404572A (en) |
DE (3) | DE69430017T2 (en) |
ES (3) | ES2172836T3 (en) |
IT (1) | IT1261114B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1285311B1 (en) * | 1996-03-12 | 1998-06-03 | Magneti Marelli Spa | METHOD OF DIAGNOSING THE EFFICIENCY OF AN EXHAUST GAS STOICHIOMETRIC COMPOSITION SENSOR PLACED DOWNSTREAM OF A CONVERTER |
US6112731A (en) * | 1998-12-21 | 2000-09-05 | Ford Global Technologies, Inc. | Engine diagnostic method |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS608328B2 (en) * | 1979-05-31 | 1985-03-02 | 日産自動車株式会社 | Air-fuel ratio feedback control device |
JPS5713245A (en) * | 1980-06-30 | 1982-01-23 | Toyota Motor Corp | Method of controlling air fuel ratio of internal combustion engine |
JPS5751936A (en) * | 1980-09-12 | 1982-03-27 | Hitachi Ltd | Controlling and trouble discrimination initializing timing setting system for engine controller |
US4491921A (en) * | 1980-12-23 | 1985-01-01 | Toyota Jidosha Kogyo Kabushiki Kaisha | Method and apparatus for controlling the air fuel ratio in an internal combustion engine |
JPS5830446A (en) * | 1981-08-13 | 1983-02-22 | Honda Motor Co Ltd | Trouble detection device of air-fuel ratio feed-back control unit for internal combustion engine |
JPS58222939A (en) * | 1982-05-28 | 1983-12-24 | Honda Motor Co Ltd | Method of controlling air fuel ratio of internal combustion engine in trouble of oxygen concentration detecting system |
JPH0733790B2 (en) * | 1985-12-11 | 1995-04-12 | 富士重工業株式会社 | Air-fuel ratio controller for automobile engine |
JP2564510B2 (en) * | 1985-12-25 | 1996-12-18 | 本田技研工業株式会社 | Abnormality detection method for exhaust gas concentration sensor of internal combustion engine |
FR2592685B1 (en) * | 1986-01-06 | 1989-12-29 | Renault | FUEL DOSING METHOD FOR ELECTRONIC INJECTION INTERNAL COMBUSTION ENGINE. |
JPH03134240A (en) * | 1989-10-18 | 1991-06-07 | Japan Electron Control Syst Co Ltd | Air-fuel ratio feedback controller of internal combustion engine |
-
1993
- 1993-11-12 IT ITTO930857A patent/IT1261114B/en active IP Right Grant
-
1994
- 1994-11-09 DE DE69430017T patent/DE69430017T2/en not_active Expired - Fee Related
- 1994-11-09 ES ES98105228T patent/ES2172836T3/en not_active Expired - Lifetime
- 1994-11-09 DE DE69413784T patent/DE69413784T2/en not_active Expired - Fee Related
- 1994-11-09 EP EP98105228A patent/EP0855498B1/en not_active Expired - Lifetime
- 1994-11-09 EP EP98105227A patent/EP0856653B1/en not_active Expired - Lifetime
- 1994-11-09 DE DE69427199T patent/DE69427199T2/en not_active Expired - Fee Related
- 1994-11-09 ES ES94117678T patent/ES2125389T3/en not_active Expired - Lifetime
- 1994-11-09 ES ES98105227T patent/ES2158630T3/en not_active Expired - Lifetime
- 1994-11-09 EP EP94117678A patent/EP0657637B1/en not_active Expired - Lifetime
- 1994-11-10 BR BR9404572A patent/BR9404572A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69427199D1 (en) | 2001-06-13 |
DE69413784T2 (en) | 1999-02-25 |
ES2172836T3 (en) | 2002-10-01 |
ES2125389T3 (en) | 1999-03-01 |
EP0855498A3 (en) | 1998-08-26 |
EP0855498B1 (en) | 2002-02-27 |
EP0856653A2 (en) | 1998-08-05 |
EP0856653B1 (en) | 2001-05-09 |
EP0855498A2 (en) | 1998-07-29 |
DE69430017D1 (en) | 2002-04-04 |
ITTO930857A0 (en) | 1993-11-12 |
DE69427199T2 (en) | 2001-10-18 |
DE69430017T2 (en) | 2002-08-14 |
EP0856653A3 (en) | 1998-08-26 |
ES2158630T3 (en) | 2001-09-01 |
EP0657637A2 (en) | 1995-06-14 |
EP0657637B1 (en) | 1998-10-07 |
ITTO930857A1 (en) | 1995-05-12 |
BR9404572A (en) | 1995-10-24 |
IT1261114B (en) | 1996-05-09 |
EP0657637A3 (en) | 1995-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |