WO1996007020A1 - Verfahren zum steuern der kraftstoffzufuhr für eine brennkraftmaschine mit beheizbarem katalysator - Google Patents
Verfahren zum steuern der kraftstoffzufuhr für eine brennkraftmaschine mit beheizbarem katalysator Download PDFInfo
- Publication number
- WO1996007020A1 WO1996007020A1 PCT/DE1995/001174 DE9501174W WO9607020A1 WO 1996007020 A1 WO1996007020 A1 WO 1996007020A1 DE 9501174 W DE9501174 W DE 9501174W WO 9607020 A1 WO9607020 A1 WO 9607020A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- internal combustion
- secondary air
- combustion engine
- bren
- additional
- Prior art date
Links
Classifications
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- 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
- F01N3/18—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 characterised by methods of operation; Control
- F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
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- 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
- F01N3/18—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 characterised by methods of operation; Control
- F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
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- 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
- F01N3/18—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 characterised by methods of operation; Control
- F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
-
- 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
- F01N3/24—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 characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the invention relates to a method for controlling the fuel supply for an internal combustion engine equipped with a heatable catalyst according to the preamble of claim 1.
- the pollutant emission of an internal combustion engine can be effectively reduced by catalytic aftertreatment.
- the three-way catalytic converter in conjunction with a lambda control device has proven to be a powerful concept for exhaust gas aftertreatment.
- the pollutant emissions of a BKM are greatest in the cold start phase.
- the cause is the still cold catalytic converter, which can only fulfill its function as a pollutant converter when it has reached its so-called light-off temperature of around 300 ° C. This takes an average of one minute to two minutes in normal driving, but noticeably longer in city traffic, due to the low engine load and the resulting lower exhaust gas temperature.
- various measures have already become known.
- the secondary air injection system consists of an air pump, one or more check valves and a shut-off valve.
- the invention is based on the object of controlling the fuel supply for an internal combustion engine equipped with an externally heated catalyst in such a way that the catalyst heats up as shortly as possible without impairing the operability of the internal combustion engine.
- FIG. 1 shows a simplified block diagram of an internal combustion engine with a catalyst which can be heated by means of a burner system, in which the method according to the invention is applied
- FIG. 2 shows a selection of time-dependent signal profiles when the method is carried out.
- the reference numeral 10 denotes an internal combustion engine with an intake pipe 11 and an exhaust pipe 12.
- the air necessary for the combustion of the mixture in the cylinders of the internal combustion engine 10 is determined by an air mass meter 13 arranged in the intake line 11.
- the air mass meter can be implemented as a hot wire or hot film air mass meter.
- An oxygen sensor in the form of a lambda probe 15 is inserted in the exhaust gas line 12 upstream of a three-way catalytic converter 14 used to convert the constituents HC, CO and NOx contained in the exhaust gas of the internal combustion engine, which sensor outputs an output signal UL to an electronic control device 16 as a function of the oxygen concentration in the exhaust gas the engine 10 outputs.
- a sensor 17 for detecting the engine speed N and a coolant temperature sensor 18 are provided at suitable points on the internal combustion engine.
- the outputs of the sensors mentioned are connected via interfaces to corresponding inputs of an electronic control device 16 for the internal combustion engine 10.
- Such electronic control devices for internal combustion engines which, in addition to fuel injection, can also take on a multitude of other tasks (for example ignition control), are known per se, so that only the structure and mode of operation associated with the present invention are dealt with below.
- Centerpiece of the Electronic control device 16 is a microcomputer that controls the required functions according to a defined program.
- the injection quantity calculated in this way is injected into the intake line 11 over the opening period (total injection time TI) of one or more injection valves 19
- An electrically operated air pump 20 draws in fresh air via an air line (not shown) and, if necessary, conveys this additional air via a secondary air line 22 having a metering valve 21 into the exhaust line 12 of the internal combustion engine machine 10, as well as via a burner air line 23 to a burner system 25 which is used for external heating of the exhaust gas catalytic converter 14.
- the quantity of secondary air quantity can be controlled either statically or via a duty cycle via the metering valve 21.
- a pressure regulator 26 and a burner air shutoff valve 27 are switched on in the burner air line 23.
- the burner system 25, which is operated with fuel from the internal combustion engine 10, essentially consists of a combustion chamber 24 with a burner nozzle 31 and an ignition device 32.
- the burner nozzle 31 is the burner air delivered by the secondary air pump 20, as well as that from the fuel circuit of the internal combustion engine (Fuel tank 30, fuel distributor bar 33) fuel supplied is supplied via a fuel shutoff valve 28 and a fuel regulator 34.
- the ignition device 32 comprises ignition electrodes 35 which extend into the combustion chamber 24 and which are ignited by ignition pulses from the electronic control device 16.
- the individual valves (21, 27, 28) are also controlled via signals from the electronic control device 16.
- the burner is only switched on when the following start conditions are met:
- the coolant temperature is within a defined range when the internal combustion engine starts
- Any cooling water preheating that may have taken place can be derived, for example, from a relationship between the coolant temperature and the intake air temperature, as was proposed in the applicant's German patent application P 44 08 769.1.
- a diagnostic memory 36 present in the electronic control device 16 of the internal combustion engine is queried, in which diagnostic errors of individual components of the burner system are stored.
- both the secondary air pump 20 and the ignition of the burner are switched on at time t0 (FIG. 2) via corresponding signals from the electronic control device 16. Since the secondary air pump 20 has a certain start-up time until the combustion air necessary for combustion is available in the combustion chamber 24, the fuel shut-off valve 28 is therefore only switched on after a time delay T_TOTZ_BREN at the time t1 (FIG. 2).
- the burner is likewise switched off, since the functional reliability of the burner is no longer guaranteed when the exhaust gas counterpressure is high.
- the fuel shut-off valve 28 is closed immediately and thus the fuel supply to the burner is cut off when misfires in the combustion are detected or diagnostic errors of the ignition of the burner or the lambda control device of the internal combustion engine are determined.
- this is to prevent fuel from being injected into the combustion chamber 24 which cannot be burned due to a defect.
- the internal combustion engine 10 After the burner has started (time t1), the internal combustion engine 10 is operated with an optimal lambda value (for low raw HC emissions) and an ignition timing which is optimal in terms of consumption.
- a quantity of fuel is supplied in accordance with an injection time TI_MOT via a mixture formation device, implemented in the exemplary embodiment as one or more injection valves 19.
- the further heating of the catalytic converter is supported by a mixture enrichment and, if necessary, by an increase in the mass flow rate of the internal combustion engine by means of a retardation of the ignition angle.
- the catalytic converter 14 has exceeded the light-off temperature in the front region, ie in the region close to the engine, and the fuel cut-off valve 28 is over a corresponding signal from the electronic control device 16 is closed, but the burner air shutoff valve 27 remains open. This means that the combustion air of the burner is blown in as additional secondary air in front of the catalytic converter 14 for the secondary air which is conveyed into the exhaust gas line 12 by the secondary air pump 20 via the secondary air line 22.
- the time T_MAX_KAT within which the burner is switched on depends on the coolant temperature TKW of the internal combustion engine 10 and is stored in a map of a map memory 37 of the electronic control device 16.
- the secondary air pump 20 is either switched off after the time T_MAX_SL (calculated from the start of the internal combustion engine 10) or if the temperature in the catalytic converter 14 exceeds a predetermined limit value during the activation of its secondary air pump 20.
- a temperature sensor 29 in the first monolith of the catalytic converter 14 is used for this purpose.
- the time T_MAX_SL is also dependent on the coolant temperature at the start TKW_ST and is also stored in a map of the map memory 37 of the electronic control device 16.
- the lambda control is suppressed until the secondary air pump 20 is switched off (time t4). After a dead time T_TOTZ_SL, the lambda control is then switched on again at time t5.
- the mixture enrichment by extending the injection time is intended to heat the catalyst during burner operation, ie during the time T_BREN and even after the fuel supply to the burner has been switched off until Support the time when the secondary air pump 20 is switched off at the time t4.
- the fuel enrichment by the warm-up enrichment and the catalyst heating measures may only be so large that a lean mixture results overall from the secondary air injection in the catalyst 14.
- TI BREN LM FAK BREN
- LM_FAK_BREN is the additional secondary air mass which is blown into the exhaust system by means of the secondary air pump when the burner is active and LM_KG_H is the engine air mass flow which is determined by the air mass meter 13.
- a factor TI_FAK_WL which takes warm-up into account and / or a factor TI_FAK_KNS, which takes into account the cold post-start, must be subtracted from the value TI_BREN in order to achieve the correct To ensure free running of the internal combustion engine.
- the additional secondary air mass LM_FAK_BREN which is blown into the exhaust system, results from a factor F_LM, which is stored as a function of the engine air mass flow LM, in a map of the map memory 37 and a factor F_UB, which takes the battery voltage UB of the vehicle electrical system into account, and thus via Speed of the electrically operated secondary air pump influences the delivery rate and is further determined by the LM_BREN burner air mass:
- LM_FAK_BREN (F_LM * F_UB) - F_LM_BREN.
- the combustion air of the burner as well as the secondary air as a whole is corrected with a height factor FAK_PH, which is obtained via a moving averaging and the ratio of the air mass actually sucked in to the air mass of the engine under normal conditions (20 ° C, 1025 mbar).
- An intake air temperature can also be taken into account using a factor FAK_P_TKW.
- the factor F_LM_BREN for the burner air mass is shown in the above Formula only taken into account when the burner is still working, i.e. the fuel shutoff valve 28 during the time T_BREN. is open.
- the additional injection time must be used to limit catalyst heating TI_BREN.
- different limit values are set for the load ranges idling and partial load, beyond which no further enrichment takes place.
- the limit values for the various load ranges are stored in a map of the diagnostic memory 37 of the electronic control device 16 as a function of the coolant temperature TKW.
- TI_BREN_ST ⁇ _BREN * F_ ⁇ .
- the method was described using an example of an internal combustion engine with an air-mass-controlled engine control and a fuel-operated burner system, it can also be used for an internal combustion engine with an intake manifold-pressure-guided system and a heated catalyst, regardless of the type of heating device (e.g. electrical heated catalyst or secondary injection alone) for the catalyst.
- the engine air mass LM_KG_H in the formula for calculating the additional injection time TI BREN can be used in an intake manifold pressure-guided system
- TI BREN ⁇ B * N * 14.5 * VD fmg / msl * -
- TI_B the basic injection time
- N the speed
- VD the valve flow of the injection valve
- Z the number of cylinders.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX9601594A MX9601594A (es) | 1994-08-31 | 1995-08-31 | Metodo para controlar la alimentacion de combustible a un motor de combustion interna equipado con un catalizador calentable. |
EP95929729A EP0725891A1 (de) | 1994-08-31 | 1995-08-31 | Verfahren zum steuern der kraftstoffzufuhr für eine brennkraftmaschine mit beheizbarem katalysator |
KR1019960702201A KR960706015A (ko) | 1994-08-31 | 1995-08-31 | 가열가능한 촉매장치를 구비한 내연기관용 연료 공급장치를 제어하는 방법(process for controlling the fuel supply to an internal combustion engine with heatable catalyst) |
JP8508416A JPH09504853A (ja) | 1994-08-31 | 1995-08-31 | 加熱可能な触媒付き内燃機関への燃料供給制御方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4430965A DE4430965C2 (de) | 1994-08-31 | 1994-08-31 | Verfahren zum Steuern der Kraftstoffzufuhr für eine Brennkraftmaschine mit beheizbarem Katalysator |
DEP4430965.1 | 1994-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996007020A1 true WO1996007020A1 (de) | 1996-03-07 |
Family
ID=6527054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/001174 WO1996007020A1 (de) | 1994-08-31 | 1995-08-31 | Verfahren zum steuern der kraftstoffzufuhr für eine brennkraftmaschine mit beheizbarem katalysator |
Country Status (7)
Country | Link |
---|---|
US (1) | US5617720A (de) |
EP (1) | EP0725891A1 (de) |
JP (1) | JPH09504853A (de) |
KR (1) | KR960706015A (de) |
DE (1) | DE4430965C2 (de) |
MX (1) | MX9601594A (de) |
WO (1) | WO1996007020A1 (de) |
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JP3426451B2 (ja) * | 1996-10-23 | 2003-07-14 | トヨタ自動車株式会社 | 内燃機関の排気ガス浄化装置 |
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DE19746814A1 (de) * | 1997-10-23 | 1999-04-29 | Behr Gmbh & Co | Pumpeneinrichtung, damit ausgerüstete Abgasreinigungsanlage und Betriebsverfahren hierfür |
DE19755871C2 (de) * | 1997-12-16 | 1999-11-11 | Siemens Ag | Verfahren zum Aufheizen eines Abgaskatalysators für eine Brennkraftmaschine mittels Sekundärluft |
US5910096A (en) * | 1997-12-22 | 1999-06-08 | Ford Global Technologies, Inc. | Temperature control system for emission device coupled to direct injection engines |
DE19829205C1 (de) * | 1998-06-30 | 1999-08-26 | Siemens Ag | Verfahren zur Einspritzzeitkorrektur bei einer Brennkraftmaschine mit Sekundärluftsystem |
DE19959605A1 (de) * | 1999-12-10 | 2001-06-13 | Volkswagen Ag | Vorrichtung und Verfahren zur NOx- und/oder SOx-Regeneration eines NOx-Speicherkatalysators |
US6167698B1 (en) * | 1999-12-21 | 2001-01-02 | Ford Motor Company | Exhaust gas purification system for a lean burn engine |
DE19963930A1 (de) * | 1999-12-31 | 2001-07-12 | Bosch Gmbh Robert | Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE10003597A1 (de) * | 2000-01-28 | 2001-08-02 | Volkswagen Ag | Verfahren zum Einstellen eines gewünschten Luftverhältnisses eines Abgasmassenstroms einer Brennkraftmaschine |
KR20020044769A (ko) * | 2000-12-06 | 2002-06-19 | 류정열 | 촉매기를 예열하는 공연비 제어 방법 |
DE10154081A1 (de) * | 2001-11-02 | 2003-05-22 | Bosch Gmbh Robert | Verfahren zur Steuerung der Sekundärluftmenge |
DE10211115A1 (de) | 2002-03-14 | 2003-09-25 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Bestimmung der Kraftstoffmenge für einen Brenner im Abgassystem eines Verbrennungsmotors |
US7032376B1 (en) * | 2003-08-27 | 2006-04-25 | Southwest Research Institute | Diesel fuel burner for diesel emissions control system |
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DE102004041457B4 (de) * | 2004-08-27 | 2013-05-29 | Volkswagen Ag | Brennkraftmaschine und Verfahren zum Betreiben dieser |
EP1637706A1 (de) * | 2004-09-16 | 2006-03-22 | Delphi Technologies, Inc. | System und Verfahren um die Abgastemperatur einer Brennkraftmaschine zu erhöhen |
EP1643094B1 (de) * | 2004-10-01 | 2009-06-17 | J. Eberspächer GmbH & Co. KG | Abgasanlage für eine Brennkraftmaschine und zugehöriges Betriebsverfahren |
DE102005054733A1 (de) * | 2005-11-17 | 2007-05-24 | Robert Bosch Gmbh | Brenner zur Katalysatoraufheizung mit gesteuerter oder geregelter Kraftstoffzuführung |
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US8056320B2 (en) | 2008-05-30 | 2011-11-15 | GM Global Technology Operations LLC | Cold-start control systems for internal combustion engines |
US9194273B2 (en) | 2008-10-31 | 2015-11-24 | Cummins Inc. | Apparatus, system, and method for aftertreatment control and diagnostics |
US8223337B2 (en) * | 2008-10-31 | 2012-07-17 | Cummins Inc. | Apparatus, system, and method for aftertreatment control and diagnostics |
US8648322B2 (en) * | 2008-10-31 | 2014-02-11 | Cummins Inc. | Optical sensing in an adverse environment |
US8353153B2 (en) * | 2010-02-25 | 2013-01-15 | Tenneco Automotive Operating Company Inc. | Snapper valve for hot end systems with burners |
US8218147B2 (en) | 2010-06-18 | 2012-07-10 | Cummins Inc. | Apparatus, system, and method for detecting engine fluid constituents |
JP2012082708A (ja) * | 2010-10-07 | 2012-04-26 | Toyota Motor Corp | 排気浄化装置および内燃機関 |
US8464516B2 (en) * | 2010-11-18 | 2013-06-18 | Tenneco Automotive Operating Company Inc. | Inlet for exhaust treatment device |
KR102603482B1 (ko) * | 2016-10-26 | 2023-11-16 | 에이치디현대인프라코어 주식회사 | 배기가스 후처리 시스템 |
DE102018118565A1 (de) * | 2018-07-31 | 2020-02-06 | Volkswagen Ag | Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors und Abgasnachbehandlungssystem |
CN112594037A (zh) * | 2020-11-20 | 2021-04-02 | 沪东重机有限公司 | 补燃系统和提高选择性催化还原烟气温度的方法 |
IT202100029297A1 (it) * | 2021-11-19 | 2023-05-19 | Marelli Europe Spa | Metodo di controllo di un dispositivo riscaldatore per un sistema di scarico di un motore a combustione interna |
DE102022201645A1 (de) | 2022-02-17 | 2023-08-17 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Betreiben eines mit Kraftstoff betriebenen Brenners |
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US3696618A (en) * | 1971-04-19 | 1972-10-10 | Universal Oil Prod Co | Control system for an engine system |
DE2333072A1 (de) * | 1973-06-29 | 1975-01-16 | Bosch Gmbh Robert | Verfahren zum entgiften der abgase |
JPS5395417A (en) * | 1977-01-31 | 1978-08-21 | Toyota Motor Corp | Catalyzer heater for catalyzer convertor |
JPH0621544B2 (ja) * | 1983-11-09 | 1994-03-23 | 株式会社日立製作所 | デイ−ゼルエンジン排気浄化装置 |
DE3933924A1 (de) * | 1989-10-11 | 1991-04-18 | Bayerische Motoren Werke Ag | Verfahren zur abgasnachbehandlung an einer brennkraftmaschine |
JP2601072B2 (ja) * | 1991-09-20 | 1997-04-16 | 株式会社日立製作所 | 内燃機関とその運転方法および自動車 |
DE4132814C2 (de) * | 1991-10-02 | 1994-02-17 | Pierburg Gmbh | Verfahren und Vorrichtung zur Abgasentgiftung einer Brennkraftmaschine |
DE4239079A1 (de) * | 1992-11-20 | 1994-05-26 | Pierburg Gmbh | Brennersystem zur Abgasentgiftung bzw. -reinigung einer Brennkraftmaschine |
US5353591A (en) * | 1993-08-19 | 1994-10-11 | General Motors Corporation | Exhaust heating control |
DE4408769C2 (de) * | 1994-03-15 | 1996-02-15 | Siemens Ag | Verfahren zum Vermindern der Abgasschadstoffemissionen bei einer Brennkraftmaschine |
-
1994
- 1994-08-31 DE DE4430965A patent/DE4430965C2/de not_active Expired - Fee Related
-
1995
- 1995-08-31 JP JP8508416A patent/JPH09504853A/ja active Pending
- 1995-08-31 KR KR1019960702201A patent/KR960706015A/ko not_active Application Discontinuation
- 1995-08-31 EP EP95929729A patent/EP0725891A1/de not_active Withdrawn
- 1995-08-31 WO PCT/DE1995/001174 patent/WO1996007020A1/de not_active Application Discontinuation
- 1995-08-31 MX MX9601594A patent/MX9601594A/es unknown
-
1996
- 1996-04-30 US US08/641,289 patent/US5617720A/en not_active Expired - Fee Related
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WO1991013247A1 (en) * | 1990-02-27 | 1991-09-05 | Orbital Engine Company (Australia) Pty Limited | Exhaust emission control |
EP0499207A1 (de) * | 1991-02-12 | 1992-08-19 | Nippondenso Co., Ltd. | Steuergerät zur schnellen Erwärmung des Katalysators einer Brennkraftmaschine |
WO1992014912A1 (en) * | 1991-02-22 | 1992-09-03 | Ab Volvo | A method and a device for catalyst emission control |
WO1992022734A1 (en) * | 1991-06-12 | 1992-12-23 | Ford Motor Company Limited | Operation of an internal combustion engine |
JPH06212959A (ja) * | 1992-10-15 | 1994-08-02 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
DE4239081A1 (de) * | 1992-11-20 | 1994-05-26 | Pierburg Gmbh | Verfahren zur Abgasentgiftung einer Brennkraftmaschine |
DE4241494A1 (de) * | 1992-12-09 | 1994-06-16 | Emitec Emissionstechnologie | Verfahren zur Steuerung der Aufheizung eines elektrisch beheizbaren katalytischen Konverters |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 18, no. 579 (M - 1698) 7 November 1994 (1994-11-07) * |
Also Published As
Publication number | Publication date |
---|---|
US5617720A (en) | 1997-04-08 |
MX9601594A (es) | 1997-05-31 |
DE4430965A1 (de) | 1996-03-14 |
KR960706015A (ko) | 1996-11-08 |
EP0725891A1 (de) | 1996-08-14 |
DE4430965C2 (de) | 1997-09-11 |
JPH09504853A (ja) | 1997-05-13 |
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