ClassID:

138281

F01N2900/1616 - CPC Classification

Classification description:

Details of electrical control or of the monitoring of the exhaust gas treating apparatus; Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst NH-slip from catalyst

Recent Application in this class:
#1
20260098491
2026-04-09

SYSTEMS AND METHODS FOR DOSER BIAS DETECTION IN AFTERTREATMENT SYSTEMS

#2
20250264046
2025-08-21

PURIFICATION SYSTEM

#3
20250179952
2025-06-05

HYDROGEN OXIDATION CATALYSTS FOR HYDROGEN-INTERNAL COMBUSTION ENGINE SYSTEMS

#4
20250163839
2025-05-22

METHOD FOR CONTROLLING AT LEAST A PART OF AN EXHAUST AFTER TREATMENT SYSTEM OF A VEHICLE

#5
20240337209
2024-10-10

SYSTEMS AND METHODS FOR DIAGNOSING NOx SENSOR BASED ON AMMONIA SLIP

#6
20240271555
2024-08-15

AFTERTREATMENT DIAGNOSTIC SYSTEM

#7
20240200481
2024-06-20

Exhaust after-treatment in heavy-duty motor vehicles

#8
20240066468
2024-02-29

EXHAUST GAS TREATMENT SYSTEM

#9
20230392532
2023-12-07

Exhaust after-treatment in heavy-duty motor vehicles

#10
20230347326
2023-11-02

METHOD OF TREATING EXHAUST GAS AND SYSTEM FOR SAME

#11
20230228206
2023-07-20

Method for controlling an exhaust flow in an exhaust aftertreatment system (EATS) of a vehicle

#12
20230220794
2023-07-13

Systems and methods for diagnosing NOx sensor based on ammonia slip

#13
20230220793
2023-07-13

Method for ascertaining an exhaust gas composition of an exhaust gas of an internal combustion engine

#14
20230212994
2023-07-06

Methods and systems for controlling selective catalytic reductant catalyst of a gasoline engine

#15
20230135221
2023-05-04

Method and device for diagnosing a coated particulate filter arranged in an exhaust-gas duct of a motor vehicle

#16
20230031074
2023-02-02

Diesel exhaust fluid doser protection during cold ambient temperature conditions using cylinder cutout methods

#17
20230020759
2023-01-19

Injection amount calculation device, injection amount control method, and exhaust gas purification device

#18
20230003152
2023-01-05

Controller and method for controlling operation of an aftertreatment system based on short-term and long-term cumulative degradation estimates

#19
20230001354
2023-01-05

Fluid injector, assembly and exhaust line comprising such an injector

#20
20220403793
2022-12-22

Internal combustion engine with exhaust gas aftertreatment and control of the nitrogen oxide emissions

#21
20220403768
2022-12-22

Method and system for diagnosing oxidation of a substance in an exhaust gas stream

#22
20220341354
2022-10-27

Method for detecting a sensor anomality

#23
20220185441
2022-06-16

Fuel supply system for eco-friendly ship

#24
20220170400
2022-06-02

Methods and system for controlling selective catalytic reductant catalyst of a gasoline engine

#25
20220056830
2022-02-24

Dynamic excess ammonia detection with the aid of a software algorithm in order to eliminate the ammonia sensor

#26
20210372309
2021-12-02

Method for adapting an amount of reductant for controlling the nitrogen oxide pollution of gases in a motor exhaust line

#27
20210270167
2021-09-02

Method and internal combustion engine for improving the efficiency of an SCR system

#28
20210095590
2021-04-01

Method of monitoring an SCR catalyst

#29
20210033041
2021-02-04

System and a method for diagnosing the performance of two NOX sensors in an exhaust gas processing configuration comprising two SCR units

#30
20200400088
2020-12-24

SYSTEMS AND METHODS FOR CONTROLLING AN ENGINE BASED ON AFTERTREATMENT SYSTEM CHARACTERISTICS

#31
20200378288
2020-12-03

Operating an exhaust gas aftertreatment system of an internal combustion engine and an exhaust gas aftertreatment system

#32
20200370454
2020-11-26

Diagnostic methods for a high efficiency exhaust aftertreatment system

#33
20200363370
2020-11-19

Method for monitoring a gas sensor

#34
20200277885
2020-09-03

Method of operating a diesel engine and diesel engine with checking of NH3 concentration

#35
20200224570
2020-07-16

Method for ascertaining a NOconcentration and a NHslip downstream from an SCR catalytic converter

#36
20200173327
2020-06-04

Methods for operating and diagnosing internal combustion engine exhaust gas treatment systems

#37
20200080459
2020-03-12

Catalyst deterioration diagnosis method and catalyst deterioration diagnosis system

#38
20200040785
2020-02-06

Urea injection control method in exhaust aftertreatment system

#39
20190390586
2019-12-26

Method for optimizing the consumption of reducing agent in a motor vehicle exhaust line

#40
20190360378
2019-11-28

Exhaust gas purification system and the control method thereof

#41
20190345861
2019-11-14

Method and system for controlling an ammonia coverage degree profile

#42
20190292968
2019-09-26

Method and device for monitoring an SCR exhaust gas after-treatment device

#43
20190242287
2019-08-08

Exhaust gas treatment device comprising an electrochemical cell

#44
20190203624
2019-07-04

NHslip detection using NOsensor

#45
20190195114
2019-06-27

Abnormality diagnosis system for an exhaust gas purification apparatus

#46
20190195107
2019-06-27

Abnormality diagnosis system for an exhaust gas purification apparatus

#47
20190178131
2019-06-13

Methods for controlling selective catalytic reduction systems

#48
20190155230
2019-05-23

Virtual sensing system

#49
20190143271
2019-05-16

Exhaust gas purification system for internal combustion engine and exhaust gas purification method for internal combustion engine

#50
20190112953
2019-04-18

Exhaust purification system of controlling injection amount of reducing agent

#51
20190101075
2019-04-04

Method for adapting the characteristic curve of the nitrogen oxide sensor in an internal combustion engine

#52
20190049341
2019-02-14

Virtual diesel exhaust fluid (DEF) quality monitor

#53
20190040778
2019-02-07

Exhaust treatment system and method for treatment of an exhaust stream

#54
20190010884
2019-01-10

Selective catalytic reduction steady state ammonia slip detection

#55
20180306082
2018-10-25

Exhaust after-treatment system including sliding mode ammonia controller

#56
20180280877
2018-10-04

SCR with turbo and ASC/DOC close-coupled system

#57
20180280876
2018-10-04

ASC/DEC with rear-concentrated exotherm generation

#58
20180274422
2018-09-27

Soot model configurable correction block (CCB) control system

#59
20180266294
2018-09-20

Model predictive control for multi-can selective catalytic reduction system

#60
20180258873
2018-09-13

Systems and methods for controlling an engine based on aftertreatment system characteristics

#61
20180258821
2018-09-13

Diagnosis apparatus and diagnosis method for NOx sensor

#62
20180202341
2018-07-19

Integrated start/stop and after-treatment controls

#63
20180187583
2018-07-05

Methods and systems for an exhaust gas aftertreatment system

#64
20180163589
2018-06-14

Method and apparatus for controlling reductant injection into an exhaust gas feedstream from an internal combustion engine

#65
20180142593
2018-05-24

Model predictive control for multi-can selective catalytic reduction system

#66
20180142590
2018-05-24

Diagnostic methods for a high efficiency exhaust aftertreatment system

#67
20180071681
2018-03-15

Method for controlling an exhaust gas treatment system

#68
20180023440
2018-01-25

System and method of purifying exhaust gas

#69
20170370266
2017-12-28

Exhaust treatment device for diesel engine

#70
20170363029
2017-12-21

Methods and systems for treating vehicle emissions

#71
20170350291
2017-12-07

SCR conversion efficiency diagnostics

#72
20170333844
2017-11-23

Method and system for mitigating urea deposits within an SCR catalyst system

#73
20170268399
2017-09-21

Exhaust gas post treatment system and method for exhaust gas post-treatment

#74
20170218828
2017-08-03

Determining an ammonia mass flow between two SCR catalytic converters

#75
20170218813
2017-08-03

Exhaust treatment system and method for treatment of an exhaust stream

#76
20170218812
2017-08-03

Exhaust treatment system and method for treatment of an exhaust stream

#77
20170218811
2017-08-03

Method and system for controlling nitrogen oxide emissions from a combustion engine

#78
20170204763
2017-07-20

Exhaust purification system of internal combustion engine

#79
20170191394
2017-07-06

Exhaust purification system

#80
20170183998
2017-06-29

System and method for purification of an exhaust stream by use of two reduction catalysts

#81
20170175607
2017-06-22

Methods and systems for introducing reductant into an exhaust passage

#82
20170167349
2017-06-15

System and method for fault diagnosis in emission control system

#83
20170138237
2017-05-18

Method and apparatus to control reductant injection into an exhaust gas feedstream

#84
20170122168
2017-05-04

Ammonia slip detection

#85
20170122166
2017-05-04

Device and method comprising double reducing devices and a catalytically coated particle filter for treatment of an exhaust stream

#86
20170082003
2017-03-23

Method and system for controlling nitrogen oxide emissions from a combustion engine

#87
20170074139
2017-03-16

Exhaust treatment system and method for treatment of an exhaust stream

#88
20170051654
2017-02-23

Diagnostic methods for a high efficiency exhaust aftertreatment system

#89
20170044953
2017-02-16

Exhaust gas purification apparatus for an internal combustion engine

#90
20170037758
2017-02-09

Ammonia sensor control, with NOfeedback, of an SCR aftertreatment system

#91
20170030235
2017-02-02

Device and method for impacting the amount of nitrogen oxides in exhaust gases from an internal combustion engine

#92
20160367941
2016-12-22

Zoned exhaust system

#93
20160346732
2016-12-01

Method of controlling a multi selective catalytic reduction system

#94
20160319725
2016-11-03

Detection of an improper reductant in a storage tank

#95
20160290201
2016-10-06

Techniques for control of an SCR aftertreatment system in response to an ammonia slip condition

#96
20160290197
2016-10-06

Exhaust purification device and method of calculating NOx mass reduced from lean NOx trap during regeneration

#97
20160230632
2016-08-11

Dual path aftertreatment system and method utilizing fuel as an on-board reductant for NOx SCR

#98
20160215669
2016-07-28

Abnormality diagnosis device for a sensor

#99
20160115851
2016-04-28

Abnormality diagnosis device for exhaust gas control apparatus

#100
20160061079
2016-03-03

Aftertreatment system having dynamic independent injector control

#101
20160045869
2016-02-18

Method of controlling ammonia levels in catalytic units

#102
20150369106
2015-12-24

Exhaust gas purification system and method for controlling the same

#103
20150361845
2015-12-17

Feed-back for closed-loop selective catalytic reduction control

#104
20150355080
2015-12-10

Species spatial reconstruction for exhaust system using spectroscopy and tomography

#105
20150337707
2015-11-26

Abnormality diagnosis apparatus for exhaust gas purification apparatus

#106
20150330322
2015-11-19

Coordinated control of engine and after treatment systems

#107
20150328586
2015-11-19

Method and system for mitigating urea deposits within an SCR catalyst system

#108
20150315946
2015-11-05

Deterioration determination system of exhaust emission control device

#109
20150292383
2015-10-15

Exhaust aftertreatement system with catalytic deactivation monitoring

#110
20150275733
2015-10-01

Failure determination system of exhaust gas purification apparatus

#111
20150252700
2015-09-10

Assembly and method for reducing ammonia in exhaust of internal combustion engines

#112
20150247435
2015-09-03

Systems, methods, and apparatus for reductant dosing in an SCR aftertreatment system

#113
20150192047
2015-07-09

Exhaust gas purification system for internal combustion engine

#114
20150184569
2015-07-02

Exhaust gas purification apparatus for internal combustion engine

#115
20150151251
2015-06-04

Method for diagnosing a selective catalytic reduction catalyst

#116
20150118112
2015-04-30

SCR filter washcoat thickness efficiency compensation system

#117
20150113957
2015-04-30

Method for determining reducing agent slippage and motor vehicle employing the method

#118
20150093292
2015-04-02

Abnormality judging system for exhaust gas purification apparatus of internal combustion engine

#119
20150033704
2015-02-05

Temperature gradient correction of ammonia storage model

#120
20150023853
2015-01-22

Method for reducing nitrogen oxides in diesel-engine exhaust gases and exhaust gas aftertreatment system for carrying out the method

#121
20150010449
2015-01-08

Emissions control in stationary rich burn engines

#122
20140314645
2014-10-23

SCR catalyst ammonia surface coverage estimation and control

#123
20140305106
2014-10-16

Control apparatus of internal combustion engine

#124
20140301925
2014-10-09

Enhanced real-time ammonia slip detection

#125
20140298778
2014-10-09

Enhanced real-time ammonia slip detection

#126
20140260213
2014-09-18

Aftertreatment system for simultaneous emissions control in stationary rich burn engines

#127
20140208721
2014-07-31

Method, system, and apparatus for diagnosing an exhaust aftertreatment component

#128
20140202166
2014-07-24

Method of operating a gas turbine for reduced ammonia slip

#129
20140150409
2014-06-05

Method, apparatus, and system to control selective catalytic reduction (SCR) catalyst ammonia slip during high temperature transitions

#130
20140102077
2014-04-17

Methods and systems for ammonia slip detection

#131
20140033682
2014-02-06

Method for operating an SCR catalyic converter provided for the aftertreatment of exhaust gases of an internal combustion engine

#132
20140030810
2014-01-30

Method for the dynamic detection of leakages for SCR catalytic converters

#133
20140024128
2014-01-23

Method of detecting nitrogen compounds contained in exhaust gases, notably of internal-combustion engines

#134
20140023576
2014-01-23

Systems and methods for reducing secondary emissions from catalyst components

#135
20140017794
2014-01-16

Method and system for mitigating urea deposits within an SCR catalyst system

#136
20140000240
2014-01-02

Process for the reduction of nitrogen oxides and sulphur oxides in the exhaust gas from internal combustion engine

#137
20130332086
2013-12-12

Method for determining the NHloading of an SCR catalytic converter

#138
20130283769
2013-10-31

Exhaust gas purification system and method for controlling the same

#139
20130247543
2013-09-26

Exhaust gas control apparatus and control method for exhaust gas control apparatus

#140
20130202506
2013-08-08

Method for monitoring an SCR catalyst

#141
20130199157
2013-08-08

Systems and methods for controlling reductant delivery to an exhaust stream

#142
20130115150
2013-05-09

SCR catalyst system and method for the operation thereof

#143
20130104530
2013-05-02

SCR control system utilizing a differential NHand NOmeasurement using an exhaust gas sensor coupled with a micro SCR catalyst

#144
20130098462
2013-04-25

Model-based controls for selective catalyst reduction systems

#145
20130000278
2013-01-03

Method for minimizing ammonia slip from SCR catalysts

#146
20120311996
2012-12-13

Filtering method and filter for a NOX sensor of an exhaust gas system

#147
20120310507
2012-12-06

METHOD AND DEVICE FOR CONTROLLING AN SCR CATALYTIC CONVERTER OF A VEHICLE

#148
20120233986
2012-09-20

System and method to control selective catalytic reduction systems in feedback

#149
20120192552
2012-08-02

Exhaust manifold

#150
20120102927
2012-05-03

Exhaust purification system of internal combustion engine

#151
20120085083
2012-04-12

SCR ammonia slip detection

#152
20120085082
2012-04-12

System and method for detecting low quality reductant and catalyst degradation in selective catalytic reduction systems

#153
20120079812
2012-04-05

EXHAUST GAS PURIFICATION APPARATUS OF ENGINE AND EXHAUST GAS PURIFICATION METHOD OF ENGINE

#154
20120042631
2012-02-23

CATALYST MATERIALS FOR AMMONIA OXIDATION IN LEAN-BURN ENGINE EXHAUST

#155
20120023907
2012-02-02

System and method for processing NHD slippage of a selective catalyst reduction system

#156
20120017568
2012-01-26

Ammonia sensor control, with NOfeedback, of an SCR aftertreatment system

#157
20120017567
2012-01-26

Transient compensation control of an SCR aftertreatment system

#158
20120000185
2012-01-05

Method for detecting abnormality in reducing agent

#159
20110296905
2011-12-08

Method for monitoring an SCR catalytic converter

#160
20110265461
2011-11-03

Abnormality detection apparatus for exhaust gas purification apparatus and abnormality detection method for exhaust gas purification apparatus

#161
20110265452
2011-11-03

Ammonia sensor control of an SCR aftertreatment system

#162
20110262329
2011-10-27

SCR catalyst ammonia surface coverage estimation and control

#163
20110258992
2011-10-27

Ammonia slip catalyst diagnostic methods and systems

#164
20110239627
2011-10-06

Apparatus and method for monitoring oxidation catalyst functionality

#165
20110203259
2011-08-25

Method for correcting an estimate of NHstored within a selective catalyst reduction system

#166
20110192149
2011-08-11

Exhaust gas purifying apparatus for internal combustion engine

#167
20110192148
2011-08-11

Exhaust gas purifying apparatus for internal combustion engine

#168
20110192147
2011-08-11

Model-based controls for selective catalyst reduction system

#169
20110138779
2011-06-16

Determination of the Linear Correlation Between Signals, Which are Determined by Means of NOx Sensors, in an SCR Exhaust Gas Aftertreatment System

#170
20110099985
2011-05-05

Exhaust purification system for internal combustion engine

#171
20110072798
2011-03-31

NOx CONTROL REQUEST FOR NH3 STORAGE CONTROL

#172
20110056188
2011-03-10

Exhaust purification apparatus for internal combustion engine

#173
20110047993
2011-03-03

Exhaust purification system of internal combustion engine

#174
20110005209
2011-01-13

Ammonia storage set-point control for selective catalytic reduction applications

#175
20110005203
2011-01-13

Identifying ammonia non-slip conditions in a selective catalytic reduction application

#176
20110005202
2011-01-13

Identifying ammonia slip conditions in a selective catalytic reduction application

#177
20100281855
2010-11-11

Model based method for selective catalyst reducer urea dosing strategy

#178
20100281853
2010-11-11

Method of estimating quantity of NO produced in ammonia oxidation catalyst and exhaust gas purification system for internal combustion engine

#179
20100242440
2010-09-30

Apparatus, system, and method for estimating an NOx conversion efficiency of a selective catalytic reduction catalyst

#180
20100223908
2010-09-09

Ammonia (NH) storage control system and method based on a nitrogen oxide(NO) sensor

#181
20100199636
2010-08-12

Exhaust purifying apparatus for an internal combustion engine

#182
20100170226
2010-07-08

DIAGNOSTIC METHOD FOR A REAGENT MATERIAL TO BE INTRODUCED INTO AN EXHAUST GAS REGION OF AN INTERNAL COMBUSTION ENGINE AND DEVICE FOR PERFORMING THE METHOD

#183
20100107609
2010-05-06

Method for controlling a SCR catalyst

#184
20100050614
2010-03-04

System and method for selective catalytic reduction control

#185
20100050611
2010-03-04

Procedure for operating a combustion engine with a SCR-catalyzer

#186
20100028228
2010-02-04

Current storage estimation for selective catalytic reduction catalysts

#187
20100024393
2010-02-04

Apparatus, system, and method for NOx signal correction in feedback controls of an SCR system

#188
20100024389
2010-02-04

Nitrogen oxide estimation downstream of a selective catalytic reduction catalyst

#189
20090272105
2009-11-05

Apparatus, system, and method for reducing NOemissions on an SCR catalyst

#190
20090272101
2009-11-05

Apparatus, system, and method for controlling ammonia slip from an SCR catalyst

#191
20080250774
2008-10-16

Reductant injection control strategy

#192
20070199309
2007-08-30

Exhaust gas purification apparatus

#193
20050282285
2005-12-22

Strategy for controlling NOx emissions and ammonia slip in an SCR system using a nonselective NOx/NH3

#194
17806377
2023-11-07

System and method for dosing a selective catalytic reduction catalyst