WO2013139848A1 - Verfahren zum betreiben einer brennkraftmaschine - Google Patents
Verfahren zum betreiben einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2013139848A1 WO2013139848A1 PCT/EP2013/055803 EP2013055803W WO2013139848A1 WO 2013139848 A1 WO2013139848 A1 WO 2013139848A1 EP 2013055803 W EP2013055803 W EP 2013055803W WO 2013139848 A1 WO2013139848 A1 WO 2013139848A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nox
- exhaust gas
- gas recirculation
- value
- catalytic converter
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
-
- 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]
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0052—Feedback control of engine parameters, e.g. for control of air/fuel ratio or intake air amount
-
- 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
- F02D41/146—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 NOx content or concentration
-
- 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
- F02D41/146—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 NOx content or concentration
- F02D41/1461—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 NOx content or concentration of the exhaust gases emitted by the engine
-
- 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
- F02D41/146—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 NOx content or concentration
- F02D41/1463—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 NOx content or concentration of the exhaust gases downstream of 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
- F02D2200/0811—NOx storage efficiency
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M2026/001—Arrangements; Control features; Details
-
- 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 operating an internal combustion engine, in particular with self-ignition, with at least one SCR catalytic converter in the exhaust system and an exhaust gas recirculation system with an exhaust gas recirculation valve, wherein the exhaust gas recirculation amount and / or the position of the exhaust gas recirculation valve in dependence on the NOx concentration upstream of the SCR catalyst is regulated so that a measured by at least a first NOx sensor upstream of the SCR catalyst NOx concentration corresponds to a predetermined NOx concentration setpoint.
- the engine must be operated at higher exhaust gas recirculation rates to reduce the engine's NOx emissions, and still maintain the required low levels despite reduced NOx conversion capability To achieve NOx concentrations downstream of the SCR catalyst.
- JP 2000-282958 A an internal combustion engine with an exhaust gas recirculation system and an SCR catalyst is known, wherein the exhaust gas recirculation valve is controlled by a control unit so that a measured by a NOx sensor upstream of the SCR catalyst NOx concentration of a NOx concentration Setpoint corresponds.
- the object of the invention is to avoid these disadvantages and to be able to comply with the legally prescribed NOx emission limit values at the end of the exhaust gas line independently of aging phenomena in the simplest possible way.
- this is achieved by also measuring the NOx concentration in the exhaust gas downstream of the SCR catalytic converter with at least one second NOx sensor and comparing it with the NOx concentration of the first NOx sensor upstream of the SCR catalytic converter and from a comparison determining an efficiency value of the SCR catalyst for the NOx conversion, wherein the NOx concentration target value is adjusted upstream of the SCR catalyst when the determined efficiency value deviates from a predetermined efficiency target value.
- the NOx concentration setpoint upstream of the SCR catalyst is reduced if the determined efficiency value is less than a predetermined efficiency setpoint.
- the setpoint specification for the efficiency of the SCR catalytic converter depends on the operating conditions of the SCR catalytic converter, in particular the temperature and / or the space velocity of the exhaust gas flow, the operating conditions of the internal combustion engine, in particular the rotational speed and / or the load and or that measured by the first NOx sensor NOx concentration.
- the NOx concentration setpoint for the NOx concentration at the location of the first NOx sensor may be a function of at least one operating parameter of the internal combustion engine, preferably the speed or the load, and / or at least one environmental parameter, preferably the atmospheric pressure.
- the control can be adapted quickly to changing conditions, and to tolerances in the exhaust gas recirculation system.
- an upper limit value for the exhaust gas recirculation quantity and / or for the opening position of the exhaust gas recirculation valve is specified as a function of at least one operating parameter of the internal combustion engine, preferably the rotational speed or the load.
- the upper limit value for the exhaust gas recirculation quantity and / or for the position of the exhaust gas recirculation valve is predefined as a function of at least one environmental parameter, preferably the atmospheric pressure. This allows a rapid adaptation to changes even at the limit.
- Fig. 1 shows schematically an internal combustion engine for carrying out the method according to the invention
- Fig. 2 shows the procedure.
- Fig. 1 shows schematically an internal combustion engine 1, with an intake manifold 2, an exhaust line 3 and an exhaust gas recirculation system 4 for returning exhaust gases from the exhaust line 3 in the intake manifold 2.
- an SCR catalyst 5 is arranged, with which NOx in Exhaust gas can be reduced.
- a first NOx sensor 6, downstream of the SCR catalyst 5, a second NOx sensor 7 is arranged. With the two NOx sensors 6, 7, the NOx conversion of the SCR catalyst 5 can be monitored.
- the NOx sensors 6, 7 are in communication with an electronic control unit ECU. Further, the electronic control unit ECU is connected to an exhaust gas recirculation valve 8 with which the exhaust gas recirculation amount can be controlled.
- the two NOx sensors 6 and 7 are included as standard in conventional SCR catalyst systems.
- a setpoint value NOx s for the NOx concentration at the location of the first NOx sensor 6 is determined. It is advantageous if this specification NOx s depends on operating parameters of the internal combustion engine 1, such as in particular the rotational speed n, the load L, but also of environmental parameters such as the atmospheric pressure p. From the comparison of the first NOx concentration measured by the first NOx sensor NOxn and the specification NOx s of the NOx concentration, a desired value EGR S for the position of the exhaust gas recirculation valve 8 or the exhaust gas recirculation rate is calculated in a further step.
- step 30 it is examined whether the setpoint value EGR S for the position of the exhaust gas recirculation valve 8 or the exhaust gas recirculation rate exceeds a maximum value EGR max and equals the maximum value EG R max when the setpoint value EG R S is exceeded.
- EGR max a maximum value
- EG R max the maximum value of the exhaust gas recirculation rate
- an efficiency value K N ox of the SCR catalytic converter for the NOx conversion is first calculated in step 40 from the comparison of the signals NOxn and NOxi 2 of the two NOx sensors 6, 7. If the calculated value K efficiency of NOx by a reference value K s NOx from the NOx concentration setpoint NOx is adapted s (step 50). In particular, the NOx concentration target value specification NOx s is reduced by a predefined value ⁇ if the efficiency value K NOx is too low.
- the setpoint input K NOx s for the efficiency K NOx of the SCR catalytic converter depends on operating conditions of the SCR catalytic converter 5 (in particular the temperature and / or the space velocity of the exhaust gas flow in the SCR catalytic converter) and / or operating conditions Internal combustion engine 1 (in particular, the rotational speed n and / or the load L) and / or the NOx concentration NOxn, which is measured by the first NOx sensor 6.
- the exhaust gas recirculation control can be realized without additional sensors in the air path.
- a pure control of the exhaust gas recirculation valve 8 there is the advantage that changes and tolerances in the exhaust gas recirculation system 4 are immediately recognized by the first NOx sensor 6 based on changed NOx emissions.
- aging of the SCR system be compensated by the NOx emissions of the internal combustion engine 1 are reduced by increasing the exhaust gas recirculation rate. Although this may lead to a slight increase in the fuel consumption of the internal combustion engine 1 with increasing aging of the SCR system, the legally required emissions can be maintained in any case.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013001088.7T DE112013001088A5 (de) | 2012-03-21 | 2013-03-20 | Verfahren zum Betreiben einer Brennkraftmaschine |
CN201380026427.2A CN104321519A (zh) | 2012-03-21 | 2013-03-20 | 运行内燃机的方法 |
US14/387,018 US20150040540A1 (en) | 2012-03-21 | 2013-03-20 | Method for Operating an Internal Combustion Engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50092/2012 | 2012-03-21 | ||
ATA50092/2012A AT512760B1 (de) | 2012-03-21 | 2012-03-21 | Verfahren zum Betreiben einer Brennkraftmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013139848A1 true WO2013139848A1 (de) | 2013-09-26 |
Family
ID=48128265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/055803 WO2013139848A1 (de) | 2012-03-21 | 2013-03-20 | Verfahren zum betreiben einer brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150040540A1 (de) |
CN (1) | CN104321519A (de) |
AT (1) | AT512760B1 (de) |
DE (1) | DE112013001088A5 (de) |
WO (1) | WO2013139848A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015110247A3 (de) * | 2014-01-21 | 2015-09-17 | Volkswagen Ag | Verfahren zur diagnose eines abgaskatalysators sowie kraftfahrzeug |
WO2020124101A1 (de) * | 2018-12-20 | 2020-06-25 | Innio Jenbacher Gmbh & Co Og | Brennkraftmaschine mit abgasnachbehandlung und steuerung der stickoxidemission |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015004063A1 (de) * | 2015-03-28 | 2016-03-10 | Mtu Friedrichshafen Gmbh | Anordnung und Verfahren |
KR102417384B1 (ko) * | 2016-12-14 | 2022-07-06 | 현대자동차주식회사 | Egr 제어 방법 |
CN108952901B (zh) * | 2018-07-04 | 2019-12-27 | 中国汽车技术研究中心有限公司 | 基于双NOx传感器的SCR催化剂老化修正方法 |
NL2021315B1 (en) * | 2018-07-16 | 2020-01-24 | Daf Trucks Nv | SCR conversion efficiency testing method |
CN110761881B (zh) * | 2019-09-20 | 2021-01-08 | 东风商用车有限公司 | 一种scr效率的诊断方法 |
CN111622853A (zh) * | 2020-05-29 | 2020-09-04 | 一汽解放汽车有限公司 | 一种基于发动机氮氧排放的自适应的egr控制方法 |
US11181026B1 (en) | 2020-07-21 | 2021-11-23 | Paccar Inc | Methods for operation of an emissions aftertreatment system for NOx control during regeneration of diesel particulate filter |
US11352927B2 (en) | 2020-07-21 | 2022-06-07 | Paccar Inc | Control of selective catalytic reduction in heavy-duty motor vehicle engines |
US11428136B2 (en) | 2020-07-21 | 2022-08-30 | Paccar Inc | Heater diagnostics in heavy-duty motor vehicle engines |
US11326493B2 (en) | 2020-07-21 | 2022-05-10 | Paccar Inc | Ammonia storage capacity of SCR catalyst unit |
US11976582B2 (en) * | 2020-07-21 | 2024-05-07 | Paccar Inc | Methods for diagnostics and operation of an emissions aftertreatment system |
US11725560B2 (en) | 2020-07-21 | 2023-08-15 | Paccar Inc | Heater control in heavy-duty motor vehicle engines |
US11499463B2 (en) | 2020-07-21 | 2022-11-15 | Paccar Inc | Methods for evaluating diesel exhaust fluid quality |
US11879367B2 (en) | 2020-07-21 | 2024-01-23 | Paccar Inc | NOx sensor diagnostics in heavy-duty motor vehicle engines |
Citations (5)
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JP2000282958A (ja) | 1999-03-30 | 2000-10-10 | Toyota Motor Corp | 内燃機関の排気ガス再循環装置 |
DE10155929A1 (de) * | 2000-11-15 | 2002-05-23 | Gen Motors Corp | Steuersystem für einen Abgaszustrom zu einem NOx-Katalysator |
DE102006007122A1 (de) * | 2006-02-16 | 2007-08-23 | Daimlerchrysler Ag | Verfahren zum Betreiben eines Verbrennungsmotors und einer daran angeschlossenen Abgasnachbehandlungseinrichtung |
US20090158710A1 (en) * | 2007-12-20 | 2009-06-25 | Mitsubishi Fuso Truck And Bus Corporation | Exhaust purification apparatus for engine |
US20100139380A1 (en) * | 2008-12-05 | 2010-06-10 | Hyundai Motor Company | System for Calculating SCR Conversion Efficiency for Diesel Vehicles and Method Thereof |
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DE10039709A1 (de) * | 2000-08-14 | 2002-03-07 | Bosch Gmbh Robert | Verfahren und Steuergerät zum Bestimmen des Zustands eines Stickoxid (NOx)-Speicherkatalysators |
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DE102004051747A1 (de) * | 2004-10-23 | 2006-04-27 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens |
JP4537417B2 (ja) * | 2007-03-06 | 2010-09-01 | トヨタ自動車株式会社 | NOxセンサの異常診断装置 |
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US8621854B2 (en) * | 2010-06-29 | 2014-01-07 | GM Global Technology Operations LLC | System and method for determining an age of and controlling a selective catalytic reduction catalyst |
WO2012067617A1 (en) * | 2010-11-18 | 2012-05-24 | Mack Trucks, Inc. | Method and engine arrangement for controlling nox |
JP5760423B2 (ja) * | 2010-12-16 | 2015-08-12 | いすゞ自動車株式会社 | NOx浄化率低下原因診断装置 |
US8844267B2 (en) * | 2011-03-17 | 2014-09-30 | GM Global Technology Operations LLC | Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor |
US8869512B2 (en) * | 2011-04-06 | 2014-10-28 | Commins Inc. | Combined engine out NOX management |
US8943798B2 (en) * | 2012-10-12 | 2015-02-03 | Ford Global Technologies, Llc | Methods and systems for ammonia slip detection |
US9638122B2 (en) * | 2013-12-20 | 2017-05-02 | Ford Global Technologies, Llc | Method to diagnose SCR catalyst |
-
2012
- 2012-03-21 AT ATA50092/2012A patent/AT512760B1/de not_active IP Right Cessation
-
2013
- 2013-03-20 US US14/387,018 patent/US20150040540A1/en not_active Abandoned
- 2013-03-20 WO PCT/EP2013/055803 patent/WO2013139848A1/de active Application Filing
- 2013-03-20 DE DE112013001088.7T patent/DE112013001088A5/de not_active Ceased
- 2013-03-20 CN CN201380026427.2A patent/CN104321519A/zh active Pending
Patent Citations (5)
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JP2000282958A (ja) | 1999-03-30 | 2000-10-10 | Toyota Motor Corp | 内燃機関の排気ガス再循環装置 |
DE10155929A1 (de) * | 2000-11-15 | 2002-05-23 | Gen Motors Corp | Steuersystem für einen Abgaszustrom zu einem NOx-Katalysator |
DE102006007122A1 (de) * | 2006-02-16 | 2007-08-23 | Daimlerchrysler Ag | Verfahren zum Betreiben eines Verbrennungsmotors und einer daran angeschlossenen Abgasnachbehandlungseinrichtung |
US20090158710A1 (en) * | 2007-12-20 | 2009-06-25 | Mitsubishi Fuso Truck And Bus Corporation | Exhaust purification apparatus for engine |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015110247A3 (de) * | 2014-01-21 | 2015-09-17 | Volkswagen Ag | Verfahren zur diagnose eines abgaskatalysators sowie kraftfahrzeug |
CN105917091A (zh) * | 2014-01-21 | 2016-08-31 | 大众汽车有限公司 | 用于诊断废气催化器的方法以及机动车 |
KR101777986B1 (ko) | 2014-01-21 | 2017-09-12 | 폭스바겐 악티엔 게젤샤프트 | 배기가스 촉매 컨버터의 진단 방법 및 자동차 |
CN105917091B (zh) * | 2014-01-21 | 2018-11-06 | 大众汽车有限公司 | 用于诊断废气催化器的方法以及机动车 |
US10316770B2 (en) | 2014-01-21 | 2019-06-11 | Volkswagen Aktiengesellschaft | Method for diagnosing an exhaust gas catalytic converter, and motor vehicle |
WO2020124101A1 (de) * | 2018-12-20 | 2020-06-25 | Innio Jenbacher Gmbh & Co Og | Brennkraftmaschine mit abgasnachbehandlung und steuerung der stickoxidemission |
US11391231B2 (en) | 2018-12-20 | 2022-07-19 | Innio Jenbacher Gmbh & Co Og | Internal combustion engine with exhaust gas aftertreatment and control of the nitrogen oxide emissions |
US11898514B2 (en) | 2018-12-20 | 2024-02-13 | Innio Jenbacher Gmbh & Co Og | Internal combustion engine with exhaust gas aftertreatment and control of the nitrogen oxide emissions |
Also Published As
Publication number | Publication date |
---|---|
CN104321519A (zh) | 2015-01-28 |
DE112013001088A5 (de) | 2014-11-06 |
AT512760B1 (de) | 2014-05-15 |
AT512760A1 (de) | 2013-10-15 |
US20150040540A1 (en) | 2015-02-12 |
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