EP2786002A1 - Verfahren zum betreiben einer verbrennungskraftmaschine sowie zur ausführung des verfahrens eingerichtetes steuergerät - Google Patents
Verfahren zum betreiben einer verbrennungskraftmaschine sowie zur ausführung des verfahrens eingerichtetes steuergerätInfo
- Publication number
- EP2786002A1 EP2786002A1 EP12795389.1A EP12795389A EP2786002A1 EP 2786002 A1 EP2786002 A1 EP 2786002A1 EP 12795389 A EP12795389 A EP 12795389A EP 2786002 A1 EP2786002 A1 EP 2786002A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- time
- lambda
- probe
- value
- setpoint
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/101—Three-way catalysts
-
- 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
- F02D41/1454—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 an oxygen content or concentration or the air-fuel ratio
-
- 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)
- F02D41/1482—Integrator, i.e. variable slope
-
- 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
- F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating conditions
- F02D41/1488—Inhibiting the regulation
-
- 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
- F02D41/24—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
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1422—Variable gain or coefficients
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1431—Controller structures or design the system including an input-output delay
Definitions
- the invention relates to a method for operating an internal combustion engine, wherein an exhaust gas generated by the internal combustion engine is guided over a arranged in an exhaust passage 3-way catalyst.
- FIG. 1 shows schematically the structure of an internal combustion engine 10 with a downstream exhaust system.
- the internal combustion engine 10 may be a spark ignition engine (gasoline engine). With regard to their fuel supply, they can have a direct injection fuel supply, so working with internal mixture formation, or have a pilot fuel injection and thus work with external mixture formation.
- the internal combustion engine 10 can be operated homogeneously, wherein in the entire combustion chamber of a cylinder, there is a homogeneous air-fuel mixture at the ignition point, or in an inhomogeneous mode (stratified charge mode), in which at the time of ignition a comparatively rich air-fuel mixture, especially in the area of a spark plug, is present, which is surrounded by a very lean mixture in the remaining combustion chamber.
- the internal combustion engine 10 with a substantially stoichiometric air-fuel mixture can be operated, that is, with a mixture with a lambda value close to or equal to 1.
- various parameters of the internal combustion engine 10, in particular the engine speed and the engine load are read from the engine control unit 28.
- a controller implemented in the engine control unit 28 thus controls the operation of the internal combustion engine 10, in particular regulating the fuel supply and the air supply such that a desired fuel mass and a desired air mass supplied to represent a desired air-fuel mixture (the exhaust target lambda).
- the air-fuel mixture is determined as a function of the operating point of the internal combustion engine 10, in particular the engine speed and the engine load from maps.
- lambda modulation takes place as shown in FIG. 6 (actual lambda value from the probe signal: rich dark curve, control variable of the controller: bold bright curve, lambda nominal value ranges: bright rectangles).
- the switching of the controller direction takes place.
- P jump P component to reach the setpoint.
- the size of the P-jump can depend on various parameters. Among others, the P-jump may be dependent on a fixed desired amplitude. In a preferred embodiment, it may be determined here which portion of the specified desired amplitude is to be displayed via the P jump.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011087399.6A DE102011087399B4 (de) | 2011-11-30 | 2011-11-30 | Verfahren zum Betreiben einer Verbrennungskraftmaschine sowie zur Ausführung des Verfahrens eingerichtetes Steuergerät |
| PCT/EP2012/073470 WO2013079405A1 (de) | 2011-11-30 | 2012-11-23 | Verfahren zum betreiben einer verbrennungskraftmaschine sowie zur ausführung des verfahrens eingerichtetes steuergerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2786002A1 true EP2786002A1 (de) | 2014-10-08 |
| EP2786002B1 EP2786002B1 (de) | 2016-09-28 |
Family
ID=47290935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12795389.1A Active EP2786002B1 (de) | 2011-11-30 | 2012-11-23 | Verfahren zum betreiben einer verbrennungskraftmaschine sowie zur ausführung des verfahrens eingerichtetes steuergerät |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9212584B2 (de) |
| EP (1) | EP2786002B1 (de) |
| CN (1) | CN103958868B (de) |
| DE (1) | DE102011087399B4 (de) |
| WO (1) | WO2013079405A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018007647B4 (de) * | 2018-09-27 | 2021-06-02 | Mtu Friedrichshafen Gmbh | Verfahren zur modellbasierten Steuerung und Regelung einer Brennkraftmaschine mit einem SCR-Katalysator |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3802444A1 (de) * | 1988-01-28 | 1989-08-10 | Vdo Schindling | Verfahren zur regelung des kraftstoff-luft-verhaeltnisses einer brennkraftmaschine |
| WO2002103183A1 (fr) * | 2001-06-19 | 2002-12-27 | Honda Giken Kogyo Kabushiki Kaisha | Dispositif, procede, et support d'enregistrement de programme de regulation du rapport du melange air-carburant |
| JP4213148B2 (ja) * | 2005-08-09 | 2009-01-21 | 三菱電機株式会社 | 内燃機関の制御装置 |
| JP4380625B2 (ja) * | 2005-11-24 | 2009-12-09 | トヨタ自動車株式会社 | 内燃機関の空燃比制御装置 |
| US8132400B2 (en) * | 2005-12-07 | 2012-03-13 | Ford Global Technologies, Llc | Controlled air-fuel ratio modulation during catalyst warm up based on universal exhaust gas oxygen sensor input |
| JP2007231844A (ja) * | 2006-03-01 | 2007-09-13 | Mitsubishi Electric Corp | 内燃機関の制御装置 |
| DE102006047188B4 (de) | 2006-10-05 | 2009-09-03 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Überwachen einer Abgassonde |
| DE102006049656B4 (de) | 2006-10-18 | 2016-02-11 | Volkswagen Ag | Lambda-Regelung mit einer Sprung-Lambda-Sonde |
| JP4256898B2 (ja) * | 2007-04-20 | 2009-04-22 | 三菱電機株式会社 | 内燃機関の空燃比制御装置 |
| DE102007038478A1 (de) * | 2007-08-14 | 2009-02-19 | Volkswagen Ag | Verfahren zur λ-Regelung in Betriebsbereichen mit Kraftstoff-Mangel oder Kraftstoff-Überschuss bei einer Nernst-Sonde |
| JP4743443B2 (ja) * | 2008-02-27 | 2011-08-10 | 株式会社デンソー | 内燃機関の排気浄化装置 |
| JP4877246B2 (ja) * | 2008-02-28 | 2012-02-15 | トヨタ自動車株式会社 | 内燃機関の空燃比制御装置 |
-
2011
- 2011-11-30 DE DE102011087399.6A patent/DE102011087399B4/de active Active
-
2012
- 2012-11-23 EP EP12795389.1A patent/EP2786002B1/de active Active
- 2012-11-23 US US14/361,088 patent/US9212584B2/en active Active
- 2012-11-23 WO PCT/EP2012/073470 patent/WO2013079405A1/de not_active Ceased
- 2012-11-23 CN CN201280059333.0A patent/CN103958868B/zh active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013079405A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140345256A1 (en) | 2014-11-27 |
| US9212584B2 (en) | 2015-12-15 |
| CN103958868B (zh) | 2017-06-30 |
| WO2013079405A8 (de) | 2013-09-12 |
| CN103958868A (zh) | 2014-07-30 |
| DE102011087399A1 (de) | 2013-06-06 |
| DE102011087399B4 (de) | 2022-08-11 |
| WO2013079405A1 (de) | 2013-06-06 |
| EP2786002B1 (de) | 2016-09-28 |
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