SE1651061A1 - A system and a method for diagnosing the performance of two NOx sensors in an exhaust gas processing configuration comprising two SCR units - Google Patents

A system and a method for diagnosing the performance of two NOx sensors in an exhaust gas processing configuration comprising two SCR units Download PDF

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Publication number
SE1651061A1
SE1651061A1 SE1651061A SE1651061A SE1651061A1 SE 1651061 A1 SE1651061 A1 SE 1651061A1 SE 1651061 A SE1651061 A SE 1651061A SE 1651061 A SE1651061 A SE 1651061A SE 1651061 A1 SE1651061 A1 SE 1651061A1
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Sweden
Prior art keywords
nox
sensor
unit
reducing agent
scr
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SE1651061A
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English (en)
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SE540087C2 (sv
Inventor
Sommansson Joakim
Strååt Fredrik
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Scania Cv Ab
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Priority to SE1651061A priority Critical patent/SE540087C2/sv
Priority to EP17828063.2A priority patent/EP3485151A4/en
Priority to PCT/SE2017/050756 priority patent/WO2018013039A1/en
Priority to US16/316,304 priority patent/US11174810B2/en
Priority to KR1020197002608A priority patent/KR20190021436A/ko
Priority to BR112018075697-0A priority patent/BR112018075697B1/pt
Priority to CN201780042435.4A priority patent/CN109415962B/zh
Publication of SE1651061A1 publication Critical patent/SE1651061A1/sv
Publication of SE540087C2 publication Critical patent/SE540087C2/sv

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—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
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495—Controlling the catalytic process
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0093—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are of the same type
    • 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]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/05—Systems for adding substances into exhaust
    • 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
    • F01N2560/14—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics having more than one sensor of one kind
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
    • 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
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
    • 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
    • F01N2900/1402—Exhaust gas composition
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1616—NH3-slip from catalyst
    • 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/108—Auxiliary reduction catalysts
    • 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
    • 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

Claims (12)

1. in li) 2G Ciairns fi. A rnetitori for diagnosing an exhaiist gas processing configuration for a cornbustion engine(231) of a vehicie (100), said configuration ttontprisiitg a first SCR~unit (2110) and a first NOX-sensor (243) arranged downstream said first SCR-unit (240) and a second SCR-unit (250) anda second NOX--sensor (253) arranged dovifitstreain said second SCR-unit (250) and a firstreducing agent dosing unit (237) arranged upstrearn said first 5CR-unit(21i-0) and a secondreducing agent dosing unit (242) arranged hetweeit said first SCfi-tinit (240) and said second SCR-unit (250), contprisirtg the steps of: - deterrrtining vvhethei' a predetermined status of said exhaust gas processing configuration is at hand, and if so; -i performing a series of reducing agent dosing operations by said first reduciiig agent dosing unarzarp - deterntining an amount of NÛX-tíontertt (Nüxít, Nüx2) measured hv nteans of said first NOVsensor (243) and said second Nüwsertsor' (253) for a number of said reducing agent dosing operations; ~ cornparing said NOX-conterit(i\ií3x1, Nüx2) measured hy said first NÛX-seitsor (243) and said second NOX--sensor (253)_; and ~ ifthe respective NOX-corttent (Nüxl, Nüx2) rneasured by the respective Nüfsertsors (243,253) during the performed reducirig agent dosirig operations are supstantiaiiy eduai, considering that the respective NÛX-sensors (243, 253) provide a proper performance.
2. The method according to ciairn l, if the respective Nüfcontent (Nüxl, NOXZ) measuredby the respective NOX-sensors (243, 253) during the performed reducing agent dosing operations are not suhstantiaiiy eduai, the rnetfiod further comprises the steps of: - deterrnining if one of said NOX-sensors exhibits a non-iinear performance vvith respect tothe performed reducing agent drasirtg operations and the measured NOX-cortterit by the other NQX-sertsoi” vvitii respect to the performed reducirtg agent ciosirig operations, and lt) 2G -s determining ifthere is an arnrnoitia siip present at said one NSX-sensor, and if so, ~ considering that both NÜX-sensors provide a proper pertorrrtahtïe.
3. The rnethod according to ciairn 2, it no arnrnonia siip at said one NOX--sensor is determined to be present, the method turther cornprises the step ot: -s determining ifthere is an ott--set error associated vvith said one NOX--sensoii
4. , The method according to ciaim 3, if it is deterrnined that there is no off-set error associated vvitii said one Nüfserisor, the rnetiiod further cornprises the step ot: - considering that said one NOK-sensor does not provide a proper performance.
5. The rnetiioci according to ciairn 3, it it is determined that there is an ott~set errorassociated with said one Nüfseitsor' and a prior tirne out regarding reducing agent drisingoperations has been performed tor said one NOX--sertsorg the rnethod further cornprises the step ot: ~ considering that said one Nüfsensrir does not provide a proper performance.
6. 5. The rnethod according to ciaim 3, it it is deterrnined that there is an ott-set errorassociated vvith said one NOX-sensor and a prior time out regarding reducing agent dosingoperations has not been performed tor said one NOX-sensor, the method further cornprises the step ot: - pertorrning a tirne out regarding reducing agent dosing operations for said one NGX-sensor.
7. A systern tor diagnosing an exhaost gas processing cohtigoratioit tor a corniotistion engine (231) ot a vehicie (199), said ttohtigoration cornprising a tirst SCR-iinit (240) and a tirst NÛX» 1G 27 sensor (243) arranged downstrea m said first SCR-unit (240) and a second SCR-unit (250) anda second NOK-sensor (253) arranged downstream said second SCR--unit (250) and a firstreducing agent dosing unit (EET) arranged upstrearn said first SCR-unit (240) and a secondreducing agent dosing unit (247) arranged between said first SCR-unit (240) and said second SCR-unit (250), cornprisirig: -- means (2011 210; 500) arranged for determining vifnether a predeterrrtined status of said exhaust gas processing configuration is at hand; -- means (2011 210; 500) arranged for performing a series of reduciitg agent dosing operations by said first reducing agent dosing unit (237); ~ means (200; 21.0; 500) arranged for determining an amount of NQX-corttent (Níâxït, NQXZ)measured by rneans of said first NSX-sensor (243) and said second NOX-sensor (253) for a nurnper of said reducing agent dosing operations; - nteans i200; 210; 500) arranged for cornparing said NÛX-tïonteitt (Nüxl, N0x2) measured by said first Nüfsenstar (243) and said second NOX-sensor (253); and ~ means (200; 210; 500) arranged for considering that the respective NOX-sensttrs prowcie aproper performance, ifthe respective Nüfcontent measured by the respective N02 sensors during the performed reducing agent dosing operations are suhstantiaiiy equai.
8. , The system according to ciaiin 7, further cornprising: -r rneans i200; 210; 500) arranged for deterntining if one of said NOX-»sensors exnihits a non-iinear performance with respect to the performed reduciitg agent dosing operations and tnemeasured Níifconteitt by the other Nífiifsensoi' with respect to the performed reducing agent dosing operations; -r rneans i200; 210; 500) arranged for deterntining iftnere is an ammonia siip is present at said one NOK-sensor; and -r rneans i200; 210; 500) arranged for considering tnat hotn NOX--seitsors provide a proper performance if there is an ammonia siip present at said one NSX-sensor. 2G E25 28
9. The systern according 'to cäairn 8, further cornprisäng: - means ilüü; 219,: EGO) arranged for determining itthere is an off-set error associated with said one NOX-serisor. 1G.
10. The systern according to ciaini 9, further cornprising: ~ means (ZOCL 211); SÜÜ) arranged for considering 'that said one NOX-serisor does not providea proper pertorniaritïe ii ät äs deterntäried 'that there is no citiïset error' associated with said one NOX--seitsoii
11. The systern according to ciairn 9, further comprising, -- means (Ztliil 210; 590) arranged for considering that said one NOX--sensor does not providea proper performance if it is deterntineci that there is an off-set error associated with saidone NSX-sensor and a prior tirne out regarding reducing agent dosing operations has heen rserforrned for said one NEA-sensor.
12. The systern according to ciairn 'iuirtiier cornprising: ~ rneans QGÜ; 21th 500) arranged for performing a tirne out regarding reducing agent dosingoperations 'for said one NQX-serisor it it is deterniined that there is an off-set error associatedWith said one Nöt-sensor arid a prior tirne out regarding reciucirig agent dosäng operations has not been periornterà ior said one NÛX-serisor. life-lå. A vehicie (lütl 119) coniprisirtg a systern aceordirig to anyone ot eiairns 7~12. The vehicie G90; 11ti) according to ciairn ét-éi-lg; vtfhicii vehieie is any front among a truck, hus or passeriger car. 29 êaêlâ. A contputei' program (P) for diagnosing an exnaust gas processing configuration for ancombustion engine of a vehicie, wherein said computer program (F) comprises programcode for causing an eiectronic controä unit (Züíll 500) or a computer (210; 509) connected to the eiectronic controå unit QOS; SUG) to perform the steps aceorciing to any ottne ciairris 1-5. A cornputei' program profiuct containing a program code store-ri on a cornpiiter-readabåe medium 'for performing ntetnod steps according to any of ttiairns 1-5. vifhen saidcontputei' orograin is run on an eiectronic controi unit (ZGQ 509) or a contputei' (Zltt EGO) connected to the eiectronic controi unit (209,- 506).
SE1651061A 2016-07-14 2016-07-14 A system and a method for diagnosing the performance of two NOx sensors in an exhaust gas processing configuration comprising two SCR units SE540087C2 (sv)

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SE1651061A SE540087C2 (sv) 2016-07-14 2016-07-14 A system and a method for diagnosing the performance of two NOx sensors in an exhaust gas processing configuration comprising two SCR units
EP17828063.2A EP3485151A4 (en) 2016-07-14 2017-07-06 SYSTEM AND METHOD FOR PERFORMANCE DIAGNOSIS OF TWO NOX SENSORS IN AN EXHAUST GAS PROCESSING ARRANGEMENT WITH TWO SCR UNITS
PCT/SE2017/050756 WO2018013039A1 (en) 2016-07-14 2017-07-06 A system and a method for diagnosing the performance of two nox sensors in an exhaust gas processing configuration comprising two scr units
US16/316,304 US11174810B2 (en) 2016-07-14 2017-07-06 System and a method for diagnosing the performance of two NOX sensors in an exhaust gas processing configuration comprising two SCR units
KR1020197002608A KR20190021436A (ko) 2016-07-14 2017-07-06 2개의 scr 유닛을 포함하는 배기가스 처리 장치 내의 2개의 nox 센서의 성능을 진단하는 방법 및 시스템
BR112018075697-0A BR112018075697B1 (pt) 2016-07-14 2017-07-06 Sistema e método para diagnosticar o desempenho de dois sensores de nox em uma configuração de processamento de gás de exaustão compreendendo duas unidades scr e veículo
CN201780042435.4A CN109415962B (zh) 2016-07-14 2017-07-06 用于诊断排气处理构造的系统和方法

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE543882C2 (en) * 2020-01-23 2021-09-14 Scania Cv Ab Method for adaption of an exhaust treatment system
US11760169B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Particulate control systems and methods for olfaction sensors
US11932080B2 (en) 2020-08-20 2024-03-19 Denso International America, Inc. Diagnostic and recirculation control systems and methods
US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
US11828210B2 (en) 2020-08-20 2023-11-28 Denso International America, Inc. Diagnostic systems and methods of vehicles using olfaction
US11881093B2 (en) 2020-08-20 2024-01-23 Denso International America, Inc. Systems and methods for identifying smoking in vehicles
US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods
US11636870B2 (en) 2020-08-20 2023-04-25 Denso International America, Inc. Smoking cessation systems and methods
EP4080024A1 (en) 2021-04-22 2022-10-26 Volvo Truck Corporation A method for detecting a sensor anomality
CN115977777B (zh) * 2023-03-22 2023-06-23 潍柴动力股份有限公司 一种前后级氮氧传感器的修正方法和相关装置
CN116085098B (zh) * 2023-04-07 2023-07-18 潍柴动力股份有限公司 降低scr双喷系统结晶的方法及车辆

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19547646A1 (de) 1995-12-20 1997-06-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
US6701707B1 (en) 2002-09-04 2004-03-09 Ford Global Technologies, Llc Exhaust emission diagnostics
US6925796B2 (en) * 2003-11-19 2005-08-09 Ford Global Technologies, Llc Diagnosis of a urea SCR catalytic system
JP4789242B2 (ja) 2005-12-09 2011-10-12 Ｕｄトラックス株式会社 排気浄化装置
EP2080889A4 (en) 2006-11-09 2011-02-09 Nissan Diesel Motor Co AMBIENT AIR TEMPERATURE SENSOR AND EXHAUST PURIFICATION APPARATUS
KR100957138B1 (ko) * 2007-07-09 2010-05-11 현대자동차주식회사 질소산화물 센서 고장 판단 방법 및 이를 수행하는 선택적환원 촉매 시스템
DE102007040439A1 (de) 2007-08-28 2009-03-05 Daimler Ag Betriebs- und Diagnoseverfahren für ein SCR-Abgasnachbehandlungssystem
KR100907363B1 (ko) 2008-03-03 2009-07-10 현대자동차주식회사 Ｕｒｅａ-ｓｃｒ 시스템 제어방법
US8161731B2 (en) 2008-05-12 2012-04-24 Caterpillar Inc. Selective catalytic reduction using controlled catalytic deactivation
US8245567B2 (en) 2008-08-19 2012-08-21 GM Global Technology Operations LLC On board diagnostic monitor of NOx conversion efficiency for aftertreatment device
US8555613B2 (en) * 2009-03-02 2013-10-15 GM Global Technology Operations LLC Model-based diagnostics of NOx sensor malfunction for selective catalyst reduction system
US9133750B2 (en) 2009-07-30 2015-09-15 GM Global Technology Operations LLC Method and system for verifying the operation of an SCR catalyst
DE102009055082A1 (de) 2009-12-21 2011-06-22 Robert Bosch GmbH, 70469 Verfahren zur Überwachung einer Schadstoff-Konvertierungsfähigkeit in einem Abgasnachbehandlungssystem
DE102010060099A1 (de) 2010-10-21 2012-04-26 Ford Global Technologies, Llc. Verfahren zum Anpassen eines SCR Katalysators in einem Abgassystem eines Kraftfahrzeugs
DE102011003084A1 (de) 2011-01-25 2012-07-26 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung einer Abgasreinigungsanlage
WO2012129179A1 (en) * 2011-03-18 2012-09-27 Cummins Inc. A method and apparatus to control selective catalytic reduction systems in feedback
US8281578B2 (en) 2011-03-24 2012-10-09 Ford Global Technologies, Llc Method for correcting an estimate of NH3 stored within a selective catalyst reduction system
DK2726413T3 (en) 2011-07-01 2017-06-26 Alzchem Ag AMMONIA GAS GENERATOR FOR AMMONIA PRODUCTION TO REDUCE NITROGEN OXIDES IN EXHAUST GAS
JP5846490B2 (ja) 2011-12-21 2016-01-20 三菱ふそうトラック・バス株式会社 内燃機関の排ガス浄化装置
JP6114305B2 (ja) 2011-12-23 2017-04-12 ボルボ ラストバグナー アーベー 排気後処理システム及びそのシステムを操作する方法
US9162183B2 (en) 2012-03-06 2015-10-20 Cummins Inc. System and method to manage SCR catalyst NO2/NOX ratio
WO2013134539A1 (en) * 2012-03-07 2013-09-12 Cummins Inc. Method and algorithm for performing an nh3 sensor rationality diagnostic
US9492788B2 (en) 2012-03-29 2016-11-15 Volvo Construction Equipment Ab Method for diagnosing a selective catalytic reduction catalyst
US8607625B2 (en) 2012-05-10 2013-12-17 GM Global Technology Operations LLC Service test for exhaust gas treatment system
DE102012209240A1 (de) 2012-05-31 2013-12-05 Robert Bosch Gmbh Verfahren zur Plausibilisierung einer Messvorrichtung zur Ermittlung einer Qualität einer Harnstoffwasserlösung in einem Behälter eines SCR-Katalysatorsystems
US9528462B2 (en) * 2012-06-15 2016-12-27 GM Global Technology Operations LLC NOx sensor plausibility monitor
DE102012211703A1 (de) * 2012-07-05 2014-01-09 Robert Bosch Gmbh Verfahren zur Überprüfung eines Stickoxidsensors
SE538193C2 (sv) 2012-07-05 2016-03-29 Scania Cv Ab SCR-system och förfarande vid ett SCR-system
US20140065041A1 (en) 2012-08-28 2014-03-06 Cummins Emission Solutions, Inc. Emissions aftertreatment component recovery system and method
CN104603412B (zh) 2012-08-31 2017-06-09 沃尔沃卡车集团 用于估计反应剂质量的方法和系统
WO2014073408A1 (ja) 2012-11-07 2014-05-15 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102012025002A1 (de) 2012-12-20 2014-06-26 Volkswagen Aktiengesellschaft Verfahren zur Diagnose eines Abgaskatalysators, Diagnoseeinrichtung sowie Kraftfahrzeug mit einer solchen
US9038369B2 (en) 2013-02-13 2015-05-26 Cummins Inc. Systems and methods for aftertreatment system diagnostics
JP5672328B2 (ja) 2013-03-22 2015-02-18 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102013006153A1 (de) 2013-04-10 2014-10-30 Daimler Ag Verfahren zum Betreiben einer Abgasreinigungsanlage eines Kraftfahrzeug-Verbrennungsmotors
DE102013209487B4 (de) 2013-05-22 2020-07-02 Mtu Friedrichshafen Gmbh Verfahren zum Betreiben einer Antriebseinrichtung sowie entsprechende Antriebseinrichtung
CN105283642B (zh) 2013-06-10 2018-03-09 博世株式会社 控制装置、内燃机的排气净化装置及排气净化装置的控制方法
DE102013012575A1 (de) 2013-07-30 2015-02-05 Man Truck & Bus Ag Verfahren und Vorrichtung zur Ermittlung des Wirkungsgrades einer Abgasreinigungsvorrichtung
US9109495B2 (en) * 2013-08-08 2015-08-18 GM Global Technology Operations LLC Method and system for identifying a source of nitrogen oxide reduction inefficiency
JP6037037B2 (ja) 2013-09-25 2016-11-30 トヨタ自動車株式会社 センサの異常診断装置
US9010087B1 (en) * 2013-11-13 2015-04-21 Ford Global Technologies, Llc Method and system for NOx sensor degradation
SE540265C2 (sv) 2014-01-31 2018-05-15 Scania Cv Ab Förfarande och system vid tillförsel av tillsatsmedel till en avgasström
US10001042B2 (en) 2014-03-03 2018-06-19 Cummins Inc. Systems, methods, and apparatus for reductant dosing in an SCR aftertreatment system
US20150273395A1 (en) 2014-03-26 2015-10-01 GM Global Technology Operations LLC Reductant quality and scr adaption control system
DE112014006820T5 (de) 2014-07-18 2017-04-06 Cummins Emission Solutions Inc. Abgasnachbehandlungssystem und Verfahren mit zwei geregelten Reduktionsmittel-Dosiersystemen
JP2016098682A (ja) 2014-11-19 2016-05-30 トヨタ自動車株式会社 内燃機関の排気浄化装置
US9784166B2 (en) 2014-12-30 2017-10-10 Cummins Inc. NOx sensor diagnostic for an exhaust aftertreatment system
US9879580B2 (en) 2015-08-19 2018-01-30 Cummins, Inc. Diagnostic methods for a high efficiency exhaust aftertreatment system
DE102015222209A1 (de) * 2015-11-11 2017-05-11 Robert Bosch Gmbh Verfahren zur Plausibilisierung eines NOx-Sensors in einem SCR-Katalysatorsystem

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US20210033041A1 (en) 2021-02-04
CN109415962A (zh) 2019-03-01
EP3485151A1 (en) 2019-05-22
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SE540087C2 (sv) 2018-03-20
BR112018075697A2 (pt) 2019-04-02

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