ClassID:

138294

F01N2900/1812 - 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 system for adding a substance into the exhaust; Properties of reducing agent or dosing system Flow rate

Recent Application in this class:
#1
20260125999
2026-05-07

AMMONIA GASIFIER FOR A SELECTIVE CATALYTIC REDUCTION DEVICE, AND ASSOCIATED SYSTEMS AND METHODS

#2
20250179953
2025-06-05

IMPROVED UREA SENDER UNIT

#3
20250116217
2025-04-10

MOTOR VEHICLE PROVIDED WITH AN AFTER-TREATMENT APPARATUS AND A DEVICE FOR HEATING THE AFTER-TREATMENT APPARATUS

#4
20240200481
2024-06-20

Exhaust after-treatment in heavy-duty motor vehicles

#5
20240035406
2024-02-01

Catalytic converter of vehicle

#6
20230349312
2023-11-02

Method for detecting urea consumption deviation, and vehicle post-processing system

#7
20230193803
2023-06-22

Method for controlling the operation of an exhaust aftertreatment system

#8
20230182074
2023-06-15

Reducer supply device

#9
20230175424
2023-06-08

Method for checking an exhaust gas system in a vehicle, and control unit for performing the method

#10
20230147578
2023-05-11

Non-intrusive reductant injector clogging detection

#11
20230143384
2023-05-11

Method and a control arrangement for a process of selective catalytic reduction after-treatment of an exhaust gas

#12
20230003156
2023-01-05

Method to control a burner for an exhaust system of an internal combustion engine

#13
20220381171
2022-12-01

Controlling urea injection in exhaust after treatment systems

#14
20220298944
2022-09-22

Optimizing an SCR catalytic converter state when parking a vehicle with a diesel engine

#15
20220170401
2022-06-02

Urea injection control system for an internal combustion engine

#16
20220025804
2022-01-27

Aftertreatment system with multiple dosing modules

#17
20210332769
2021-10-28

Method for controlling emissions of nitrogen oxides in exhaust of internal combustion engine

#18
20210308701
2021-10-07

Nozzle lance, combustion plant and method for exhaust gas treatment

#19
20210293172
2021-09-23

Method and system for diagnosing an aftertreatment system

#20
20210239021
2021-08-05

Dynamic monitoring of the flow rate of liquid additive injected into a motor vehicle exhaust gas treatment system

#21
20210164376
2021-06-03

SYSTEMS AND METHODS FOR MULTIPOINT REDUCTANT INSERTION

#22
20210148268
2021-05-20

Systems and methods for increasing reductant insertion accuracy

#23
20210146297
2021-05-20

System and method for removing harmful gas in discharged cleaning solution of exhaust gas treatment apparatus

#24
20210140357
2021-05-13

Method for regulating exhaust emissions

#25
20200386136
2020-12-10

Method and apparatus for selective catalytic reduction system

#26
20200340381
2020-10-29

System and method for determining reductant delivery performance

#27
20200271038
2020-08-27

System and a method for diagnosing functionality of dosing units of a fluid dosing system

#28
20200182117
2020-06-11

UREA WATER SUPPLY DEVICE

#29
20200123952
2020-04-23

Reductant delivery systems and methods

#30
20200056526
2020-02-20

Exhaust gas purification controller for engine

#31
20200049047
2020-02-13

METHOD AND SYSTEM FOR CONTROL OF AT LEAST ONE OF A DOSAGE DEVICE AND AN ENGINE

#32
20190368400
2019-12-05

Urea deposit growth thermal management via multi-zone alternating variable diesel exhaust fluid injection utilizing a physics-based deposit growth and decay model

#33
20190323400
2019-10-24

Assembly and methods for NOx reducing reagent dosing with variable spray angle nozzle

#34
20190292970
2019-09-26

Catalyst state estimation apparatus, catalyst state estimation method with information processing apparatus, and non-transitory recording medium in which program is stored

#35
20190218950
2019-07-18

Method for controlling an SCR catalytic converter

#36
20190195101
2019-06-27

Exhaust gas purification apparatus for an internal combustion engine

#37
20190178134
2019-06-13

Systems and methods for reducing noise in reductant insertion assemblies

#38
20190178132
2019-06-13

Reductant dosing quantity correction based on accumulated error during reductant insertion

#39
20190136733
2019-05-09

Systems and methods for heating reductant

#40
20190093534
2019-03-28

Method for controlling an exhaust gas treatment system

#41
20190078481
2019-03-14

Method for operating an SCR catalytic converter system which has a first SCR catalytic converter and a second SCR catalytic converter

#42
20190072016
2019-03-07

Method for controlling reductant injection for an emission reduction system of an internal combustion engine

#43
20190010884
2019-01-10

Selective catalytic reduction steady state ammonia slip detection

#44
20190010848
2019-01-10

Selective catalytic reduction ammonia storage control

#45
20190003362
2019-01-03

System and method for determining reductant delivery performance

#46
20180363529
2018-12-20

Method of determining operation of an SCR reductant doser

#47
20180363527
2018-12-20

Temperature-based control of reagent distribution

#48
20180298835
2018-10-18

Method and system for use when correcting supply of an additive to an exhaust gas stream

#49
20180283247
2018-10-04

Assembly and methods for NOreducing reagent dosing with variable spray angle nozzle

#50
20180274427
2018-09-27

Abnormality diagnosis apparatus for exhaust gas purification apparatus

#51
20180266294
2018-09-20

Model predictive control for multi-can selective catalytic reduction system

#52
20180258811
2018-09-13

Method and system for a first and a second supply of additive to an exhaust gas stream from an internal combustion engine

#53
20180202336
2018-07-19

Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for internal combustion engine

#54
20180171846
2018-06-21

System and method for the monitoring and controlling of emissions for multiple engines

#55
20180149058
2018-05-31

Automatic performance tuning for diesel exhaust fluid dosing unit

#56
20180149056
2018-05-31

Method for controlling an exhaust gas treatment system

#57
20180087426
2018-03-29

System for regulating exhaust emissions

#58
20180073408
2018-03-15

Method for controlling the injection of reductant for an exhaust after treatment unit

#59
20180058284
2018-03-01

Apparatus and methods for evaluating a soot quantity accumulated in a selective catalytic reduction washcoated particulate filter

#60
20180038302
2018-02-08

Exhaust emission control system of engine

#61
20180028974
2018-02-01

Systems and method for feed forward control of diesel exhaust fluid delivery systems

#62
20180023441
2018-01-25

Exhaust gas control system for internal combustion engine and control method for internal combustion engine

#63
20180010502
2018-01-11

Methods for detecting a dosing error

#64
20170350293
2017-12-07

Controlling nitrogen oxide emissions in the exhaust gas of an internal combustion engine

#65
20170335732
2017-11-23

Selective catalyst reduction system and method of controlling temperature of reducing agent injection module

#66
20170328251
2017-11-16

Systems and methods for reducing noise in reductant insertion assemblies

#67
20170306819
2017-10-26

Method for controlling an injector for injecting a reductant into an exhaust system of an internal combustion engine

#68
20170241314
2017-08-24

Self-tuning circuit for controlling input pressure values for an aftertreatment system

#69
20170234200
2017-08-17

Virtual reductant level sensor

#70
20170218814
2017-08-03

Diesel exhaust fluid delivery system with pressure control

#71
20170175606
2017-06-22

Dosing module

#72
20170167349
2017-06-15

System and method for fault diagnosis in emission control system

#73
20170145893
2017-05-25

Ammonia adsorption amount estimation apparatus, ammonia adsorption amount estimation method, and exhaust gas purification system for internal combustion engine

#74
20170138244
2017-05-18

Methods to adapt reductant injection controls for catalyst aging

#75
20170130629
2017-05-11

Method for checking the plausibility of a NOx sensor in an SCR catalytic converter system

#76
20170130628
2017-05-11

Method for operating an SCR catalytic converter system of an internal combustion engine

#77
20170089244
2017-03-30

Method for injecting reductant into an exhaust gas of an engine

#78
20170089243
2017-03-30

Method for injecting reductant into an exhaust gas of an engine using an oscillating supply pressures

#79
20170051648
2017-02-23

Reductant supply system

#80
20170037758
2017-02-09

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

#81
20170002707
2017-01-05

Constant mass flow injection system

#82
20160290201
2016-10-06

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

#83
20160258331
2016-09-08

Method of evaluating a soot quantity accumulated in a selective catalytic reduction washcoated particulate filter (SDPF)

#84
20160153336
2016-06-02

System for cooling vehicle SCR and method for controlling the same

#85
20160108789
2016-04-21

Constant mass flow injection system

#86
20160076422
2016-03-17

NH3 flow measurement

#87
20160061079
2016-03-03

Aftertreatment system having dynamic independent injector control

#88
20160040581
2016-02-11

Diagnosing system for reductant dosing system

#89
20160040580
2016-02-11

Reductant tank sensor diagnostic method and system

#90
20160010529
2016-01-14

Apparatus, method, and system for diagnosing reductant delivery performance

#91
20150345359
2015-12-03

Exhaust gas purification apparatus for internal combustion engine

#92
20150322838
2015-11-12

Exhaust gas processing system independent to engine controls

#93
20150192047
2015-07-09

Exhaust gas purification system for internal combustion engine

#94
20150176456
2015-06-25

Method of determining correcting logic for reacting model of selective catalytic reduction catalyst, method of correcting parameters of reacting model of selective catalytic reduction catalyst and exhaust system using the same

#95
20150168260
2015-06-18

System and method for the monitoring and controlling of emissions for multiple engines

#96
20150113960
2015-04-30

Leak detection and mitigation in reductant delivery systems

#97
20150096283
2015-04-09

Method for monitoring components in an exhaust after treatment system, an exhaust after treatment system, and a controller for an exhaust after treatment system

#98
20150075143
2015-03-19

System, methods, and apparatus for low temperature dosing in diesel exhaust systems

#99
20150059317
2015-03-05

System and method for enhancing the performance of a selective catalytic reduction device

#100
20150047326
2015-02-19

Water injection exhaust treatment system

#101
20150034167
2015-02-05

Control apparatus for a diesel exhaust fluid injector

#102
20140360168
2014-12-11

System and method for sequential injection of reagent to reduce NOx from combustion sources

#103
20140325968
2014-11-06

Exhaust gas purification device for internal combustion engine

#104
20140325966
2014-11-06

Injector control for a selective catalytic reduction system

#105
20140305106
2014-10-16

Control apparatus of internal combustion engine

#106
20140260216
2014-09-18

Apparatus, method, and system for diagnosing reductant delivery performance

#107
20140202166
2014-07-24

Method of operating a gas turbine for reduced ammonia slip

#108
20140188326
2014-07-03

Method and system of determining failure of urea level sensor

#109
20140150409
2014-06-05

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

#110
20140102077
2014-04-17

Methods and systems for ammonia slip detection

#111
20140060015
2014-03-06

Fluid delivery apparatus with flow rate sensing means

#112
20140053535
2014-02-27

Method for monitoring a pressure sensor in a delivery and metering system for a reactant of a catalytic converter

#113
20140047820
2014-02-20

Device and method for controlling urea injection system of diesel engine

#114
20130276913
2013-10-24

Pumping device

#115
20130259753
2013-10-03

Exhaust purification system of internal combustion engine

#116
20130259751
2013-10-03

Exhaust gas system with a reducing agent supply

#117
20130153652
2013-06-20

Status indicator for amonia cartridge

#118
20130152549
2013-06-20

Method and system for optimizing fuel and reductant consumption

#119
20130118153
2013-05-16

Method and device pertaining to cooling of dosing units of SCR systems

#120
20130032214
2013-02-07

PURGE PHASE CONTROL STRATEGY FOR A SELECTED CATALYTIC REDUCTION SYSTEM

#121
20130025262
2013-01-31

Exhaust purification apparatus for engine

#122
20120324866
2012-12-27

Method for operating a delivery device for a reducing agent and delivery device for a reducing agent

#123
20120324865
2012-12-27

Method for regulating a pump of an SCR system

#124
20120304744
2012-12-06

Urea quality diagnosis system

#125
20120304626
2012-12-06

Method for determining an amount of liquid removed from a tank and reducing agent supply device for a motor vehicle

#126
20120216510
2012-08-30

Vehicle-based strategy for removing urea deposits from an SCR catalyst

#127
20120067031
2012-03-22

Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system

#128
20120039779
2012-02-16

Method for feeding reducing agent into an exhaust gas system and corresponding exhaust gas system and motor vehicle

#129
20120017568
2012-01-26

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

#130
20120006010
2012-01-12

Injector control for a selective catalytic reduction system

#131
20110265458
2011-11-03

Hydrocarbon energy storage and release control systems and methods

#132
20110247319
2011-10-13

Exhaust emission purifying apparatus and liquid level measuring device

#133
20110083424
2011-04-14

Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system

#134
20110072790
2011-03-31

Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device

#135
20110067382
2011-03-24

SYSTEM AND METHOD FOR NOX REDUCTION OPTIMIZATION

#136
20110036078
2011-02-17

METHOD FOR UREA INJECTION CONTROL

#137
20100242439
2010-09-30

CONTROL UNIT AND CONTROL METHOD FOR REDUCTANT SUPPLY DEVICE

#138
20090272440
2009-11-05

Freeze protection for on-board vehicle emissions treatment system

#139
20090107119
2009-04-30

Method and system of thermal management in an exhaust system

#140
20090019835
2009-01-22

Fluid delivery system

#141
20080271440
2008-11-06

Vehicle-based strategy for removing urea deposits from an SCR catalyst

#142
20080022654
2008-01-31

Method and apparatus for reducing emissions in diesel engines

#143
20070266703
2007-11-22

Apparatus for judging condition of injection of reducing agent incorporated in exhaust gas purification system

#144
20070245714
2007-10-25

Optimized exhaust after-treatment integration

#145
20070163244
2007-07-19

System and method for NOx reduction optimization

#146
20070084193
2007-04-19

Freeze protection for on-board vehicle emissions treatment system

#147
18915088
2026-02-10

Systems and methods for monitoring nitrogen dioxide variability in an engine aftertreatment system

#148
15990107
2018-12-18

Systems and methods for compensating a reductant delivery system in an aftertreatment system of an internal combustion engine