EP0848151A3 - Method of closed loop control of the air/fuel ration of an internal combustion engine - Google Patents
Method of closed loop control of the air/fuel ration of an internal combustion engine Download PDFInfo
- Publication number
- EP0848151A3 EP0848151A3 EP97120602A EP97120602A EP0848151A3 EP 0848151 A3 EP0848151 A3 EP 0848151A3 EP 97120602 A EP97120602 A EP 97120602A EP 97120602 A EP97120602 A EP 97120602A EP 0848151 A3 EP0848151 A3 EP 0848151A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion engine
- internal combustion
- output signal
- air
- controller
- 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.)
- Granted
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
- F02D41/1477—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)
- F02D41/1483—Proportional component
-
- 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
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
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)
Abstract
Die Erfindung betrifft ein Verfahren zur Regelung des Kraftstoff-Luft-Verhältnisses einer Brennkraftmaschine, wobei das Ausgangssignal einer ersten Lambdasonde, die im Abgaskanal der Brennkraftmaschine vor einem Katalysator angeordnet ist, einem Regler zugeführt wird, welcher eine PI-Charakteristik aufweist, und der Regler eine Stellgröße für das Kraftstoff-Luft-Verhältnis abgibt und daß dem Regler ein weiteres Signal zugeführt wird, welches aus dem Ausgangssignal einer zweiten, dem Katalysator nachgeordneten Lambdasonde gewonnen wird, und auf den Regelkreis der ersten Lambdasonde einwirkt.The invention relates to a method for regulating the fuel-air ratio an internal combustion engine, the output signal of a first Lambda sensor in the exhaust duct of the internal combustion engine in front of a catalytic converter is arranged, a controller is supplied, which has a PI characteristic has, and the controller a manipulated variable for the fuel-air ratio emits and that the controller is fed another signal, which from the output signal of a second, downstream of the catalyst Lambda probe is obtained, and on the control loop of the first Lambda sensor acts.
Um eine genaue und anpassungsfähige Regelung zu ermöglichen, wird der P-Anteil des Ausgangssignals des Regelkreises der ersten Lambdasonde in Abhängigkeit des Ausgangssignals der zweiten Lamdasonde geändert. In order to enable precise and adaptable control, the P component of the output signal of the control circuit of the first lambda probe is changed as a function of the output signal of the second lambda probe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/010,208 US6062019A (en) | 1997-11-25 | 1998-01-21 | Method for controlling the fuel/air ratio of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19651613 | 1996-12-12 | ||
DE19651613A DE19651613C1 (en) | 1996-12-12 | 1996-12-12 | Method for regulating the fuel-air ratio of an internal combustion engine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0848151A2 EP0848151A2 (en) | 1998-06-17 |
EP0848151A3 true EP0848151A3 (en) | 1999-05-12 |
EP0848151B1 EP0848151B1 (en) | 2004-01-28 |
Family
ID=7814430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97120602A Expired - Lifetime EP0848151B1 (en) | 1996-12-12 | 1997-11-25 | Method of closed loop control of the air/fuel ratio of an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0848151B1 (en) |
DE (2) | DE19651613C1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5848528A (en) * | 1997-08-13 | 1998-12-15 | Siemens Automotive Corporation | Optimization of closed-loop and post O2 fuel control by measuring catalyst oxygen storage capacity |
DE102006049656B4 (en) * | 2006-10-18 | 2016-02-11 | Volkswagen Ag | Lambda control with a jump lambda probe |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3500594A1 (en) * | 1985-01-10 | 1986-07-17 | Robert Bosch Gmbh, 7000 Stuttgart | Metering system for an internal combustion engine for influencing the operating mixture |
JPH01155046A (en) * | 1987-12-14 | 1989-06-16 | Japan Electron Control Syst Co Ltd | Electronic control fuel injection system for internal combustion engine |
US5115639A (en) * | 1991-06-28 | 1992-05-26 | Ford Motor Company | Dual EGO sensor closed loop fuel control |
US5203165A (en) * | 1990-07-31 | 1993-04-20 | Robert Bosch Gmbh | Method for the lambda control of an internal combustion engine having a catalyzer |
US5341641A (en) * | 1990-05-28 | 1994-08-30 | Nissan Motor Co., Ltd. | Dual sensor type air fuel ratio control system for internal combustion engine |
JPH07305647A (en) * | 1994-05-09 | 1995-11-21 | Honda Motor Co Ltd | Air-fuel ratio controller of internal combustion engine |
-
1996
- 1996-12-12 DE DE19651613A patent/DE19651613C1/en not_active Expired - Fee Related
-
1997
- 1997-11-25 EP EP97120602A patent/EP0848151B1/en not_active Expired - Lifetime
- 1997-11-25 DE DE59711258T patent/DE59711258D1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3500594A1 (en) * | 1985-01-10 | 1986-07-17 | Robert Bosch Gmbh, 7000 Stuttgart | Metering system for an internal combustion engine for influencing the operating mixture |
JPH01155046A (en) * | 1987-12-14 | 1989-06-16 | Japan Electron Control Syst Co Ltd | Electronic control fuel injection system for internal combustion engine |
US5341641A (en) * | 1990-05-28 | 1994-08-30 | Nissan Motor Co., Ltd. | Dual sensor type air fuel ratio control system for internal combustion engine |
US5203165A (en) * | 1990-07-31 | 1993-04-20 | Robert Bosch Gmbh | Method for the lambda control of an internal combustion engine having a catalyzer |
US5115639A (en) * | 1991-06-28 | 1992-05-26 | Ford Motor Company | Dual EGO sensor closed loop fuel control |
JPH07305647A (en) * | 1994-05-09 | 1995-11-21 | Honda Motor Co Ltd | Air-fuel ratio controller of internal combustion engine |
US5661972A (en) * | 1994-05-09 | 1997-09-02 | Honda Giken Kogyo Kabushiki Kaisha | Air-fuel ratio control system for internal combustion engines |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 013, no. 418 (M - 871) 18 September 1989 (1989-09-18) * |
Also Published As
Publication number | Publication date |
---|---|
EP0848151B1 (en) | 2004-01-28 |
DE19651613C1 (en) | 1998-08-06 |
DE59711258D1 (en) | 2004-03-04 |
EP0848151A2 (en) | 1998-06-17 |
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