US20110094208A1 - Method and device for controlling an exhaust gas post-treatment - Google Patents

Method and device for controlling an exhaust gas post-treatment Download PDF

Info

Publication number
US20110094208A1
US20110094208A1 US13/000,271 US200913000271A US2011094208A1 US 20110094208 A1 US20110094208 A1 US 20110094208A1 US 200913000271 A US200913000271 A US 200913000271A US 2011094208 A1 US2011094208 A1 US 2011094208A1
Authority
US
United States
Prior art keywords
exhaust gas
internal combustion
combustion engine
catalytic converter
parameter
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.)
Abandoned
Application number
US13/000,271
Other languages
English (en)
Inventor
Peter Bauer
Tahar Zrilli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Assigned to CONTINENTAL AUTOMOTIVE GMBH reassignment CONTINENTAL AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZRILLI, TAHAR, DR., BAUER, PETER
Publication of US20110094208A1 publication Critical patent/US20110094208A1/en
Assigned to Vitesco Technologies GmbH reassignment Vitesco Technologies GmbH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CONTINENTAL AUTOMOTIVE GMBH
Abandoned legal-status Critical Current

Links

Images

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
    • F01N3/18—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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/07—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • F01N2610/146—Control thereof, e.g. control of injectors or injection valves
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/12—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle exterior
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

Definitions

  • the invention relates to a method and a device for controlling an exhaust gas post-treatment process for an internal combustion engine having an SCR catalytic converter.
  • nitrogen oxides can be produced during a combustion process in a combustion chamber of the corresponding internal combustion engine.
  • the nitrogen oxides produced then form part of an exhaust gas from the internal combustion engine.
  • a reducing agent can be metered into exhaust gas tract of the internal combustion engine, by means of which the nitrogen oxides are enabled to react in an SCR catalytic converter to form harmless nitrogen and water.
  • Ammonia is preferably used as the reducing agent.
  • the ammonia can be obtained by heating a complex salt and is metered in gaseous form into the exhaust gas tract.
  • an aqueous urea solution can be metered into the exhaust gas tract, which aqueous urea solution then at least partially hydrolyzes on account of the heat in the exhaust gas tract to form ammonia which reacts with the nitrogen oxides of the exhaust gas in the SCR catalytic converter. If the nitrogen oxides are not completely reduced, they contribute to pollution of the environment. If an excess of ammonia is metered in and the ammonia exits from exhaust gas tract, then this results in a considerable odor nuisance in an area around the internal combustion engine.
  • a method and a device for controlling an exhaust gas post-treatment for an internal combustion engine can be created, which contribute to a particularly advantageous reduction of the harmful emission content of the exhaust gas of the internal combustion engine.
  • a parameter is determined for a water content of an exhaust gas in the exhaust gas tract upstream of the SCR catalytic converter of the internal combustion engine, and—depending on the parameter for the water content of the exhaust gas a control signal is determined for an actuator for introducing ammonia into the exhaust gas and the actuator is set.
  • the parameter for the water content of the exhaust gas can be determined depending on the air humidity content of the ambient air fed to the internal combustion engine.
  • the parameter for the water content of the exhaust gas can be determined depending on the temperature of the ambient air fed to the internal combustion engine.
  • the air humidity content and/or the temperature can be determined by means of one or more sensors, the measurement signal from which is representative or the measurement signals from which are representative of the air humidity content and/or the temperature of the ambient air fed to the internal combustion engine.
  • a setting of the actuator may have an effect on an ammonia mass which is fed to the SCR catalytic converter.
  • a device for controlling an exhaust gas post-treatment process for an internal combustion engine having at least one cylinder with a combustion chamber and an exhaust gas tract in which is arranged an SCR catalytic converter is designed in order to determine a parameter for a water content of an exhaust gas in the exhaust gas tract upstream of the SCR catalytic converter of the internal combustion engine, and depending on the parameter for the water content of the exhaust gas, to determine a control signal for an actuator for introducing ammonia into the exhaust gas and to set the actuator.
  • FIG. 1 shows an internal combustion engine having a control device
  • FIG. 2 shows a block diagram for a method for controlling an exhaust gas post-treatment process for the internal combustion engine.
  • a parameter is determined for a water content of an exhaust gas in the exhaust gas tract upstream of the SCR catalytic converter of the internal combustion engine, and depending on the parameter for the water content of the exhaust gas a control signal is determined for an actuator for introducing ammonia into the exhaust gas and the actuator is set.
  • the advantage of taking into consideration the water content of an exhaust gas in the exhaust gas tract upstream of the SCR catalytic converter consists is the fact that the water/humidity content in the SCR catalytic converter can be taken into consideration with regard to the injection quantity and the injection timing point of the reducing agent to be added. If necessary, it is possible to introduce suitable heating measures for the catalytic converter. It is thus possible to more easily avoid NOx emissions. Furthermore, it is possible to avoid a blockage of the SCR catalytic converter resulting from a high water/humidity content in the SCR catalytic converter. In addition, specifications can be made relating to ageing behavior of the SCR catalytic converter dependent on the humidity penetration.
  • the parameter for the water content of the exhaust gas is determined depending on the humidity content of the ambient air fed to the internal combustion engine. A precise determination of the water/humidity content in the SCR catalytic converter is thus possible.
  • the parameter for the water content of the exhaust gas is determined depending on the temperature of the ambient air fed to the internal combustion engine. This has the advantage that a precise determination of the humidity content of the ambient air and thus of the exhaust gas is possible.
  • the air humidity content and/or the temperature are/is determined by means of one or more sensors, the measurement signal from which is representative or the measurement signals from which are representative of the air humidity content and/or the temperature of the ambient air fed to the internal combustion engine.
  • a setting of the actuator has an effect on an ammonia mass which is fed to the SCR catalytic converter. This constitutes a simple possible means of metering the ammonia mass in a suitable manner.
  • FIG. 1 shows an internal combustion engine having an intake tract 10 , an engine block 12 , a cylinder head 13 and an exhaust gas tract 14 .
  • the intake tract 10 preferably comprises a throttle valve 15 and an induction manifold 17 .
  • the induction manifold 17 leads to a cylinder Z 1 in the intake port into a combustion chamber 26 of the engine block 12 .
  • the engine block 12 comprises a crankshaft 18 which is coupled by way of a connecting rod 20 to a piston 21 in the cylinder Z 1 .
  • the cylinder head 13 comprises a valve operating mechanism having a gas inlet valve 22 and a gas outlet valve 24 .
  • the cylinder head 13 also comprises an injection valve 28 and a spark plug 30 .
  • the injection valve 28 can also be arranged in the induction manifold 17 .
  • An SCR catalytic converter 34 is arranged in the exhaust gas tract 14 in order to reduce NOx.
  • control device 35 Also associated with the internal combustion engine is a control device 35 , with associated sensors which sense different measurement variables and can in each case determine the value of the measurement variables.
  • the control device 35 is designed in order to determine correcting variables, depending on at least one of the measurement variables, which correcting variables can then be converted into one or more control signals for controlling actuators by means of corresponding final control elements.
  • the control device 35 is here referred to as a device for controlling an exhaust gas post-treatment process.
  • the actuators are for example the throttle valve 15 , the gas inlet and gas outlet valves 22 , 24 , the injection valve 28 or the spark plug 30 .
  • the sensors comprise a pedal position sensor 36 which senses an accelerator pedal position of an accelerator pedal 38 .
  • the internal combustion engine also has a humidity sensor 40 which is arranged upstream of the throttle valve 15 where it senses an air humidity content of the intake air.
  • a temperature sensor 42 upstream of the throttle valve 15 senses an intake air temperature.
  • a NOx sensor 44 Arranged downstream of the SCR catalytic converter 34 is a NOx sensor 44 which senses a NOx concentration of the exhaust gas.
  • any desired subset of the aforementioned sensors may be present, or additional sensors may also be present.
  • cylinders Z 2 to Z 4 are preferably also provided, to which corresponding actuators and, where applicable, sensors are likewise assigned.
  • a program can be stored in a program memory in the control device 35 and executed during operation of the internal combustion engine.
  • the program is illustrated in FIG. 2 .
  • the figure shows a temperature model 100 for calculating the temperature of the exhaust gas of the internal combustion engine from an exhaust gas mass flow EXH_MASS_FLOW, an exhaust gas temperature TEMP_TUR_UP upstream of a turbine of the internal combustion engine, and a total injection quantity MF_TOT of fuel.
  • a modeled exhaust gas temperature TEMP_EXH_MDL is determined by means of the temperature model 100 for the exhaust gas of the internal combustion engine.
  • a measured exhaust gas temperature TEMP_EXH_MES is determined and compared in a comparison block 102 with the modeled exhaust gas temperature TEMP_EXH_MDL, as a result of which an exhaust gas temperature TEMP_EXH is defined in a suitable manner as an output variable from the comparison block 102 .
  • a modeled water content HDT_EXH_MDL of the exhaust gas is defined from an air temperature AIR_TEMP of the ambient air, an air humidity content AIR_HDT of the ambient air, an injection quantity MF_CYL into a cylinder, a total air charge MASS_GAS_CYL in the cylinder and a combustion efficiency level CMB_EFF of the internal combustion engine.
  • the air humidity content AIR_HDT of the ambient air is preferably sensed by the humidity sensor 40
  • the air temperature AIR_TEMP of the ambient air is preferably sensed by the temperature sensor 42 upstream of the throttle valve 15 .
  • the air humidity content AIR_HDT and the air temperature AIR_TEMP of the ambient air can also be determined by means of an empirical model of weather data.
  • a correction factor FAC_EGR_COR of the exhaust gas recirculation is determined from a mass flow MASS_EGR of the exhaust gas recirculation by means of a first characteristic diagram 106 and a water content HDT_EXH of the exhaust gas is determined in a first multiplier 108 together with the modeled water content HDT_EXH_MDL of the exhaust gas determined from the humidity model 104 of the exhaust gas.
  • a temperature model 110 of the SCR catalytic converter 34 depending on the exhaust gas temperature TEMP_EXH, the exhaust gas mass flow EXH_MASS_FLOW, a vehicle speed VS, the temperature AIR_TEMP of the ambient air fed to the internal combustion engine, a heat capacity C_CAT and a catalyst volume VOL_CAT of the SCR catalytic converter 34 , a modeled catalyst temperature TEMP_CAT_MDL is determined and fed to a second multiplier 114 .
  • the value determined for the water content HDT_EXH of the exhaust gas is fed to a second characteristic diagram 112 and a correction factor FAC_HDT_COR for the humidity content is determined from this and likewise fed to the second multiplier 114 .
  • a modeled urea injection quantity UREA_INJ_MDL for the injection of urea into the exhaust gas in the exhaust gas tract 14 is determined by means of a urea injection model 116 , amongst other things, from the exhaust gas mass flow EXH_MASS_FLOW and a NOx content NOX in the exhaust gas and fed to a third multiplier 120 .
  • a catalyst temperature TEMP_CAT is determined and fed to a third characteristic diagram 118 .
  • a correction factor UREA_INJ_COR for the urea injection quantity is determined by means of the third characteristic diagram 118 and likewise fed to the third multiplier 120 .
  • the injection quantity UREA_INJ of urea into the exhaust gas tract 14 upstream of the SCR catalytic converter 34 is determined.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
US13/000,271 2008-08-05 2009-06-17 Method and device for controlling an exhaust gas post-treatment Abandoned US20110094208A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008036418A DE102008036418B4 (de) 2008-08-05 2008-08-05 Verfahren und Vorrichtung zum Steuern einer Abgasnachbehandlung
DE10-2008-036-418.5 2008-08-05
PCT/EP2009/057499 WO2010015453A1 (fr) 2008-08-05 2009-06-17 Procédé et dispositif pour commander un processus de traitement secondaire de gaz d'échappement

Publications (1)

Publication Number Publication Date
US20110094208A1 true US20110094208A1 (en) 2011-04-28

Family

ID=41017170

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/000,271 Abandoned US20110094208A1 (en) 2008-08-05 2009-06-17 Method and device for controlling an exhaust gas post-treatment

Country Status (4)

Country Link
US (1) US20110094208A1 (fr)
CN (1) CN102076934B (fr)
DE (1) DE102008036418B4 (fr)
WO (1) WO2010015453A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110235679A1 (en) * 2010-03-23 2011-09-29 Societe De Prospection Et D'inventions Techniques Spit Fastening apparatus with engine and cartridge thermistors
CN103590877A (zh) * 2012-08-15 2014-02-19 福特环球技术公司 用于监测内燃发动机的排气系统中的还原剂溶液成分的方法和装置
US9453449B2 (en) 2015-01-06 2016-09-27 Robert Bosch Gmbh Diesel exhaust system and method for controlling exhaust fluid dosing
US20170335738A1 (en) * 2016-05-17 2017-11-23 Volvo Car Corporation Dual catalytic converter exhaust-gas aftertreatment arrangement
US10465626B2 (en) 2015-12-11 2019-11-05 Continental Automotive Gmbh Method for testing a moisture sensor of a diesel engine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103726907B (zh) * 2014-01-13 2015-10-28 东南大学 一种应用于南极科考支撑平台柴油发电机的烟气监控除尘系统
DE102016201354B4 (de) 2016-01-29 2017-08-10 Continental Automotive Gmbh Verfahren zur Überprüfung eines Feuchtigkeitssensors
US10087803B2 (en) * 2016-08-04 2018-10-02 Ford Global Technologies, Llc Method and system for an exhaust catalyst
DE102017122933A1 (de) * 2016-10-13 2017-11-23 FEV Europe GmbH Regelungsverfahren für ein Motorsystem
DE102016222418A1 (de) * 2016-11-15 2018-05-17 Robert Bosch Gmbh Verfahren zur Regelung einer Füllung eines Speichers eines Katalysators für eine Abgaskomponente
DE102022117681B3 (de) 2022-07-14 2023-12-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Betreiben einer Abgasanlage mit einem SCR-Katalysator für eine Verbrennungskraftmaschine, Verbrennungskraftmaschine mit einer Abgasanlage sowie ein Kraftfahrzeug mit einer Verbrennungskraftmaschine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445491A (en) * 1981-08-27 1984-05-01 Nissan Motor Company, Limited Ignition system for starting a diesel engine
US5930993A (en) * 1995-12-23 1999-08-03 Volkswagen Ag Method for monitoring the exhaust gas conversion rate of an exhaust catalyst for an internal combustion engine
US6357227B1 (en) * 1998-03-27 2002-03-19 Siemens Aktiengesellschaft System and method for reducing pollutants in the exhaust gas of an internal combustion engine
US20030226545A1 (en) * 2002-06-11 2003-12-11 Dingle Philip J. G. Direct in-cylinder reductant injection system and a method of implementing same
US6725847B2 (en) * 2002-04-10 2004-04-27 Cummins, Inc. Condensation protection AECD for an internal combustion engine employing cooled EGR
US6823659B2 (en) * 2002-01-22 2004-11-30 Hitachi, Ltd. Moisture removal device and method thereof for internal combustion engine use exhaust gas cleaning device
US7452724B2 (en) * 2003-01-17 2008-11-18 Robert Bosch Gmbh Method for operating a metering unit of a catalytic converter
US20090000280A1 (en) * 2007-06-27 2009-01-01 Denso Corporation Addition-amount controller for exhaust gas purifying agent and exhaust emission control system
US20100138245A1 (en) * 2007-04-16 2010-06-03 Hartford Fire Insurance Company Method and system for providing a fixed rate annuity with a lock-in interest rate feature

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19903439A1 (de) * 1999-01-29 2000-08-03 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung eines Abgasnachbehandlungssystem
JP3951774B2 (ja) * 2002-03-29 2007-08-01 三菱ふそうトラック・バス株式会社 内燃機関のＮОｘ浄化装置
DE10216278B4 (de) * 2002-04-12 2005-05-04 Siemens Ag Verfahren zur Bestimmung einer NOx-Konzentration
DE10301603B4 (de) * 2003-01-17 2020-03-19 Robert Bosch Gmbh Verfahren zum Dosieren von Ammoniak oder eines Ammoniak freisetzenden Reagenzmittels in ein Abgas
DE102004043933A1 (de) * 2004-09-11 2006-03-30 Daimlerchrysler Ag Abgassystem eines Kraftfahrzeugs und Verfahren zur Überwachung des Abgassystems
DE102006058880A1 (de) * 2006-12-13 2008-07-03 Siemens Ag Verfahren zur Korrektur eines Ausgangssignals eines Lambda-Sensors und Brennkraftmaschine
CN201013423Y (zh) * 2007-02-12 2008-01-30 潍柴动力股份有限公司 大排量发动机scr后处理管路装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445491A (en) * 1981-08-27 1984-05-01 Nissan Motor Company, Limited Ignition system for starting a diesel engine
US5930993A (en) * 1995-12-23 1999-08-03 Volkswagen Ag Method for monitoring the exhaust gas conversion rate of an exhaust catalyst for an internal combustion engine
US6357227B1 (en) * 1998-03-27 2002-03-19 Siemens Aktiengesellschaft System and method for reducing pollutants in the exhaust gas of an internal combustion engine
US6823659B2 (en) * 2002-01-22 2004-11-30 Hitachi, Ltd. Moisture removal device and method thereof for internal combustion engine use exhaust gas cleaning device
US6725847B2 (en) * 2002-04-10 2004-04-27 Cummins, Inc. Condensation protection AECD for an internal combustion engine employing cooled EGR
US20030226545A1 (en) * 2002-06-11 2003-12-11 Dingle Philip J. G. Direct in-cylinder reductant injection system and a method of implementing same
US7452724B2 (en) * 2003-01-17 2008-11-18 Robert Bosch Gmbh Method for operating a metering unit of a catalytic converter
US20100138245A1 (en) * 2007-04-16 2010-06-03 Hartford Fire Insurance Company Method and system for providing a fixed rate annuity with a lock-in interest rate feature
US20090000280A1 (en) * 2007-06-27 2009-01-01 Denso Corporation Addition-amount controller for exhaust gas purifying agent and exhaust emission control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Oxford English Dictionary (definition of 'Model') [retrieved on 7/31/2014]. Retrieved from the Internet: . *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110235679A1 (en) * 2010-03-23 2011-09-29 Societe De Prospection Et D'inventions Techniques Spit Fastening apparatus with engine and cartridge thermistors
US8721175B2 (en) * 2010-03-23 2014-05-13 Societe De Prospection Et D'inventions Techniques Spit Fastening apparatus with engine and cartridge thermistors
CN103590877A (zh) * 2012-08-15 2014-02-19 福特环球技术公司 用于监测内燃发动机的排气系统中的还原剂溶液成分的方法和装置
US8815188B2 (en) * 2012-08-15 2014-08-26 Ford Global Technologies, Llc Method and device for monitoring a reducing agent solution composition in the exhaust gas system of an internal combustion engine
US9453449B2 (en) 2015-01-06 2016-09-27 Robert Bosch Gmbh Diesel exhaust system and method for controlling exhaust fluid dosing
US10465626B2 (en) 2015-12-11 2019-11-05 Continental Automotive Gmbh Method for testing a moisture sensor of a diesel engine
US20170335738A1 (en) * 2016-05-17 2017-11-23 Volvo Car Corporation Dual catalytic converter exhaust-gas aftertreatment arrangement
US10145287B2 (en) * 2016-05-17 2018-12-04 Volvo Car Corporation Dual catalytic converter exhaust-gas aftertreatment arrangement

Also Published As

Publication number Publication date
DE102008036418A1 (de) 2010-02-11
CN102076934B (zh) 2013-05-29
DE102008036418B4 (de) 2010-04-29
WO2010015453A1 (fr) 2010-02-11
CN102076934A (zh) 2011-05-25

Similar Documents

Publication Publication Date Title
US20110094208A1 (en) Method and device for controlling an exhaust gas post-treatment
CN106246368B (zh) 内燃机的控制装置
US8286417B2 (en) Diagnosis method for an exhaust gas post-treatment system
RU2605167C2 (ru) Способ управления двигателем (варианты) и система двигателя
CN100580236C (zh) 用于内燃机的燃料喷射控制装置
US8434294B2 (en) Method and device for determining a dynamic time duration for exhaust gas probes of an internal combustion engine
US20150308321A1 (en) Exhaust emission prediction system and method
EP3548729B1 (fr) Capteur de flux inférentiel
RU2010108242A (ru) Способ регулирования дозировки восстановителя при селективном каталитическом восстановлении
CN101988415A (zh) 用于检测湿度的方法、系统和传感器
CN101988435A (zh) 运转包括柴油微粒过滤器的发动机的方法
US8170776B2 (en) Method and device for controlling an internal combustion engine
EP2940280B1 (fr) Dispositif et procédé d'estimation de l'indice de cétane d'un carburant
CN103061854A (zh) 用于控制将释放氨的还原剂供至内燃发动机的排气净化系统的喷射装置的方法
US9845746B2 (en) Internal combustion engine provided with a selective catalytic reduction system
WO2014189528A1 (fr) Modèle de nox de moteur
US20110271657A1 (en) Control system and method for improved efficiency of particulate matter filter regeneration
CN102305118B (zh) 控制在颗粒物质过滤器再生期间的排气温度的系统和方法
US7617812B2 (en) Method of operating a compression ignition engine
US9217384B2 (en) Diagnosis method and device for operating an internal combustion engine
KR101216451B1 (ko) 내연기관 제어 방법 및 장치
US8315782B2 (en) Method and device for operating an internal combustion engine
US9551263B2 (en) Method and device for operating an internal combustion engine
US20110231079A1 (en) Method and device for operating an internal combustion engine

Legal Events

Date Code Title Description
AS Assignment

Owner name: CONTINENTAL AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BAUER, PETER;ZRILLI, TAHAR, DR.;SIGNING DATES FROM 20101210 TO 20101216;REEL/FRAME:025733/0605

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: VITESCO TECHNOLOGIES GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONTINENTAL AUTOMOTIVE GMBH;REEL/FRAME:053335/0887

Effective date: 20200601