EP1479894A1 - Verfahren zum Betreiben einer Brennkraftmaschine - Google Patents
Verfahren zum Betreiben einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1479894A1 EP1479894A1 EP04102086A EP04102086A EP1479894A1 EP 1479894 A1 EP1479894 A1 EP 1479894A1 EP 04102086 A EP04102086 A EP 04102086A EP 04102086 A EP04102086 A EP 04102086A EP 1479894 A1 EP1479894 A1 EP 1479894A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lambda
- value
- oxygen
- measuring device
- signal
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 title claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000007704 transition Effects 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 9
- 230000003197 catalytic effect Effects 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 33
- 239000003054 catalyst Substances 0.000 claims description 28
- 239000000446 fuel Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 150000002430 hydrocarbons Chemical class 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 hydrocarbons HC Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
-
- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
- F02D41/126—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off transitional corrections at the end of the cut-off period
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0802—Temperature of the exhaust gas treatment apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0802—Temperature of the exhaust gas treatment apparatus
- F02D2200/0804—Estimation of the temperature of the exhaust gas treatment apparatus
-
- 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
- F02D41/1446—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 exhaust temperatures
-
- 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
Definitions
- the NO X storage catalytic converters used in lean-burn gasoline engines for exhaust gas purification have a lower level of high-temperature stability than conventional 3-way catalytic converters.
- the use of this catalyst technology therefore requires special efforts to limit the temperature load of these catalysts.
- measures are considered that lead to a lowering of the stationary temperature level, such as exhaust gas cooling or a reduction in the residual oxygen content of the exhaust gases by optimizing the combustion process.
- measures that reduce the load during transient engine operation such as the optimization of the application with regard to HC peaks, make sense here.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims (7)
- Verfahren zum Betreiben einer Brennkraftmaschine, insbesondere eines Ottomotors, insbesondere eines Kraftfahrzeuges, mit wenigstens einem in einer Abgasanlage angeordneten Katalysator, wobei die Brennkraftmaschine wahlweise in einem stöchiometrischen Betrieb mit einem Luft-Kraftstoff-Verhältnis Lambda im wesentlichen gleich 1, in einem mageren Betriebsmodus mit einem Luft-Kraftstoff-Verhältnis Lambda größer 1, in einem ungefeuertem Schubbetrieb oder in einem unterstöchiometrischen Betrieb mit einem Luft-Kraftstoff-Verhältnis Lambda kleiner 1 betrieben wird,
dadurch gekennzeichnet, daß nach einem Übergang von dem mageren Betriebsmodus oder Schubbetrieb zu dem unterstöchiometrischen Betrieb der Wert von Lambda für eine vorbestimmte oder eine durch das Signal einer sauerstoffsensitiven Messeinrichtung definierte Zeit derart von einem für den unterstöchiometrischen Betrieb vorgegebenen Wert abweichend gewählt wird, daß eine Funktion einer Maximaltemperatur des Katalysators nach dem Übergang in Abhängigkeit vom Lambdawert, der vorbestimmten oder durch das Signal einer sauerstoffsensitiven Messeinrichtung definierten Zeitdauer und einer sich daraus ergebenden Summe aus thermischem und chemischem Energieeintrag in den Katalysator ein Minimum aufweist. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der thermische Energieeintrag einen Energieeintrag durch eine Abgasenthalpie umfaßt.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der chemische Energieeintrag einen Energieeintrag durch chemische Reaktionen aufgrund der Freisetzung und Abreaktion von Sauerstoff umfaßt, welcher im vorangegangenen Betrieb in einer Schicht des Katalysators gespeichert wurde.
- Verfahren nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in der vorbestimmten oder durch das Signal einer sauerstoffsensitiven Messeinrichtung definierten Zeit nach dem Übergang der Wert von Lambda größer als der für den unterstöchiometrischen Betrieb vorgegebene Wert und kleiner als 1 gewählt wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß während der vorbestimmten oder durch das Signal einer sauerstoffsensitiven Messeinrichtung definierten Zeitspanne für Lambda ein konstanter Wert im Bereich von 0,88 bis 0,98, insbesondere 0,93 bis 0,97 gewählt wird.
- Verfahren nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß am Ende der vorbestimmten oder durch das Signal einer sauerstoffsensitiven Messeinrichtung definierten Zeit vom für den unterstöchiometrischen Betrieb vorgegebenen Wert abweichenden Lambdawert auf den für den unterstöchiometrischen Betrieb vorgegebenen Wert für Lambda gesprungen wird.
- Verfahren nach wenigstens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß während der vorbestimmten oder durch das Signal einer sauerstoffsensitiven Messeinrichtung definierten Zeit vom für den unterstöchiometrischen Betrieb vorgegebenen Wert abweichenden Lambdawert auf den für den unterstöchiometrischen Betrieb vorgegebenen Wert für Lambda gemäß einer stetig differenzierbaren Funktion übergegangen wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10323248A DE10323248A1 (de) | 2003-05-22 | 2003-05-22 | Verfahren zum Betreiben einer Brennkraftmaschine |
| DE10323248 | 2003-05-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1479894A1 true EP1479894A1 (de) | 2004-11-24 |
| EP1479894B1 EP1479894B1 (de) | 2006-05-03 |
Family
ID=33039278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04102086A Expired - Lifetime EP1479894B1 (de) | 2003-05-22 | 2004-05-13 | Verfahren zum Betreiben einer Brennkraftmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1479894B1 (de) |
| AT (1) | ATE325265T1 (de) |
| DE (2) | DE10323248A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115523035A (zh) * | 2022-09-19 | 2022-12-27 | 东风柳州汽车有限公司 | 车辆控制方法、装置、设备及存储介质 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021163863A1 (zh) * | 2020-02-18 | 2021-08-26 | 潍柴动力股份有限公司 | 一种发动机控制方法及装置 |
| DE102025111575B3 (de) | 2025-03-25 | 2026-04-23 | Audi Aktiengesellschaft | Verfahren zum Betreiben einer Antriebseinrichtung für ein Kraftfahrzeug, entsprechende Antriebseinrichtung für ein Kraftfahrzeug sowie Computerprogrammprodukt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4103747A1 (de) * | 1991-02-07 | 1992-08-13 | Emitec Emissionstechnologie | Verfahren und vorrichtung zur steuerung eines verbrennungsmotors unter einbeziehung der aktuellen temperatur eines nachgeschalteten katalysators |
| DE19748971A1 (de) * | 1997-11-06 | 1999-05-12 | Opel Adam Ag | System zum Schutz einer Katalysatoranordnung im Abgasstrang einer fremdgezündeten Brennkraftmaschine vor Überhitzung |
| JP2000045821A (ja) * | 1998-07-27 | 2000-02-15 | Mazda Motor Corp | エンジンの空燃比制御方法及びその装置 |
| WO2002027172A1 (de) * | 2000-09-29 | 2002-04-04 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren zur temperaturabhängigen schubabschaltung |
-
2003
- 2003-05-22 DE DE10323248A patent/DE10323248A1/de not_active Withdrawn
-
2004
- 2004-05-13 AT AT04102086T patent/ATE325265T1/de not_active IP Right Cessation
- 2004-05-13 EP EP04102086A patent/EP1479894B1/de not_active Expired - Lifetime
- 2004-05-13 DE DE502004000497T patent/DE502004000497D1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4103747A1 (de) * | 1991-02-07 | 1992-08-13 | Emitec Emissionstechnologie | Verfahren und vorrichtung zur steuerung eines verbrennungsmotors unter einbeziehung der aktuellen temperatur eines nachgeschalteten katalysators |
| DE19748971A1 (de) * | 1997-11-06 | 1999-05-12 | Opel Adam Ag | System zum Schutz einer Katalysatoranordnung im Abgasstrang einer fremdgezündeten Brennkraftmaschine vor Überhitzung |
| JP2000045821A (ja) * | 1998-07-27 | 2000-02-15 | Mazda Motor Corp | エンジンの空燃比制御方法及びその装置 |
| WO2002027172A1 (de) * | 2000-09-29 | 2002-04-04 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren zur temperaturabhängigen schubabschaltung |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115523035A (zh) * | 2022-09-19 | 2022-12-27 | 东风柳州汽车有限公司 | 车辆控制方法、装置、设备及存储介质 |
| CN115523035B (zh) * | 2022-09-19 | 2024-01-30 | 东风柳州汽车有限公司 | 车辆控制方法、装置、设备及存储介质 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004000497D1 (de) | 2006-06-08 |
| DE10323248A1 (de) | 2005-01-05 |
| EP1479894B1 (de) | 2006-05-03 |
| ATE325265T1 (de) | 2006-06-15 |
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