Patents
Sitemap › 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 › F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022)
04/2014
04/02/2014CN103703223A Emissions measuring system
04/02/2014CN103696839A Detection method and device for DPF (diesel particulate filter) active regeneration system
04/02/2014CN103696834A SCR (selective catalytic reduction) catalytic noise elimination system and SCR catalytic noise eliminator thereof
04/01/2014US8683856 Catalyst abnormality diagnosis apparatus
04/01/2014US8683844 Sensor monitoring methods and systems
03/2014
03/27/2014DE102012018781A1 Method for monitoring particle filter in exhaust gas tract of internal combustion engine, involves characterizing differential pressure during regeneration phase of particle filter by value
03/26/2014EP2711513A2 Waste gas treatment system for combustion engines
03/26/2014EP2710241A1 Storage vessel for a liquid, and method for measuring the electric conductivity of a liquid
03/26/2014CN203499778U Scr electric control system
03/26/2014CN203499776U Urea tank in urea injection system
03/26/2014CN103670633A Differential pressure-based particulate filter diagnostic
03/26/2014CN103670632A Apparatus and method for onboard performance monitoring of oxidation catalyst
03/26/2014CN103670631A Non-interfering exhaust sensor monitoring based on fuel steam blowing operation
03/26/2014CN103670621A Urea solution tank with observation window
03/20/2014DE102010019988B4 Steuersystem zur vorhersage des verfügbaren regenerationsvolumens eines elektrisch beheizten partikelfilters Control system to predict the available volume of an electrically heated particulate filter regeneration
03/19/2014EP2707580A1 Secondary air system diagnostic test
03/19/2014CN103649481A Method for the dynamic detection of leakages for scr catalytic converters
03/19/2014CN102312713B Method of monitoring soot mass in a particulate filter and monitoring system for same with correction for active regeneration inefficiency
03/18/2014US8671736 Agglomeration and charge loss sensor for measuring particulate matter
03/18/2014US8671665 Exhaust gas purifying apparatus for internal combustion engine
03/13/2014WO2014037645A1 Method for detecting the positioning direction of an asymmetric particle filter
03/13/2014WO2014037144A1 Measurement element and method for differentiating various kinds of liquids
03/13/2014WO2013164548A3 Method for treating exhaust gases of a supercharged engine comprising exhaust-gas recirculation
03/13/2014US20140069081 Differential pressure-based enablement of a particulate filter diagnostic
03/13/2014DE102013217622A1 Differenzdruckbasierte Aktivierung einer Partikelfilterdiagnose Differential pressure-based activation of a particulate diagnosis
03/13/2014DE102011122165B4 Verfahren zur Bestimmung einer Rußpartikelfiltereffizienz eines Rußpartikelfilters Method for determining a particulate filter efficiency of a particulate filter
03/13/2014DE102011107784B4 Verfahren zur Zustandsbestimmung einer Abgasreinigungsvorrichtung A method for determining the state of an emission control device
03/12/2014CN203476461U Detection device for rear section of exhaust pipe
03/12/2014CN203476453U Off-gas treatment system
03/12/2014CN103628961A Method of monitoring diesel oxidation catalyst performance
03/12/2014CN103628954A Soot accumulation computing and displaying device
03/12/2014CN103625461A Diagnosis system and method of oxygen sensor for hybrid vehicle
03/11/2014US8667778 Catalyst overheat prevention apparatus
03/06/2014WO2014035324A1 Method and system to establish a sensor function for a pm sensor in an exhaust stream
03/06/2014WO2014035323A1 Method and system to establish a sensor function for a pm sensor
03/06/2014WO2014035322A1 Method and system to establish a sensor function for a pm sensor
03/06/2014WO2014035321A1 Method and system to establish a sensor function for a pm sensor
03/06/2014US20140067237 Method to limit temperature increase in a catalyst and detect a restricted exhaust path in a vehicle
03/06/2014US20140067235 Non-intrusive exhaust gas sensor monitoring based on fuel vapor purge operaton
03/06/2014US20140060015 Fluid delivery apparatus with flow rate sensing means
03/06/2014US20140060012 Deterioration diagnosis device for oxidation catalyst
03/06/2014DE102013217374A1 Abnutzungs-Diagnosevorrichtung für Oxidations-Katalysator Wear diagnostic apparatus for oxidizing catalyst
03/06/2014DE102013217004A1 Vorrichtung und Verfahren zur an Bord erfolgenden Überwachung des Leistungsvermögens eines Oxidationskatalysators Apparatus and method for success on board monitoring of the performance of an oxidation catalyst
03/06/2014DE102013216553A1 Nichtinvasive abgassensorüberwachung auf der basis der kraftstoffdampfspüloperation Noninvasive exhaust sensor monitoring on the basis of kraftstoffdampfspüloperation
03/06/2014DE102013013063A1 Verfahren zum Betreiben einer Kraftfahrzeugbrennkraftmaschine mit einem Abgaspartikelfilter Method for operating a motor vehicle internal combustion engine with an exhaust gas particle filter
03/06/2014DE102012215804A1 Method for determining defect of internal combustion engine of motor vehicle, involves carrying out particle concentration measurement, which follows active change of function or operating state of internal combustion engine
03/06/2014DE102012215401A1 Method for diagnosing dosing system, which meters reagent into exhaust passage of internal combustion engine, involves bringing reagent by pump to operating pressure, where metering takes place with dosing valve
03/06/2014DE102012215398A1 Method for diagnosing dosing system in internal combustion engine, involves checking measure for pressure drop, and providing error signal during delay recorded with limit value, which is defined as function of diagnostic starting pressure
03/06/2014DE102012215394A1 Device for diagnosing dosing system, which meters reagent in exhaust gas passage of internal combustion engine, has pump and reagent for applying working pressure, where dosing valve is provided for metering
03/05/2014CN103615300A Device and method for performance testing of SCR (selective catalytic reduction) postprocessing system or component of diesel engine
03/05/2014CN102493860B Closed loop control method for SCR (Selective Catalyst Reduction) system of all-working-condition diesel engine
03/05/2014CN102022169B Exhaust diagnostic systems and methods for resetting after operation with poor reductant quality
02/2014
02/27/2014WO2014032050A1 Exhaust component cleaning and requalification process
02/27/2014DE102012222408A1 Diagnosesystem und -verfahren für sauerstoffsensoren in hybrid-fahrzeugen Diagnostic system and method for oxygen sensors in hybrid vehicles
02/27/2014DE102012215172A1 Method for monitoring oxidation catalyst of selective catalytic reduction system for vehicle diesel engine, involves determining catalyst improper operation when difference between oxygen levels is smaller than predefined level
02/27/2014DE102012215032A1 Method for checking back promotion of return flow of reactant of catalyst in conveying and dosing system, involves providing flow rate measurement in discharge line and return flow path to check back promotion of return flow
02/27/2014DE102012215024A1 Verfahren zur Überwachung eines Drucksensors in einem Förder- und Dosiersystem für ein Reaktionsmittel eines Katalysators Method for monitoring a pressure sensor in a conveying and metering system for a reactant of a catalyst
02/27/2014DE102010038176B4 Verfahren zum Messen der Qualität der Ammoniakeinspritzung für ein Nachbehandlungssystem eines Kraftfahrzeugs A method for measuring the quality of the ammonia injection for an aftertreatment system of a motor vehicle
02/27/2014DE102008030520B4 Steuermodul und Verfahren zum Wärmeschutz von Fahrzeugbauteilen Control module and method for thermal protection of vehicle components
02/26/2014EP2700793A1 Method for correcting a soot mass estimation in a particle filter
02/26/2014EP2699776A1 Method and device for determining the dosed reducing agent volume in an scr system
02/26/2014EP2699775A1 Method and device for determination of remaining volume of reducing agent in a container pertaining to an scr system
02/26/2014EP2699774A1 Method for detecting a change of reducing agent canister in an scr system, exhaust line and vehicle
02/26/2014EP2699773A1 Method for validating and detecting a change of reducing agent cannister in an scr system, exhaust line and vehicle
02/26/2014CN203452879U Motorcycle exhaust pipe connecting piece and oxygen sensor installation structure applying same
02/26/2014CN203452878U Reducer nozzle state detection device and catalytic reduction system
02/26/2014CN103603710A System and method for diesel particulate filter (DPF) automatic regeneration
02/20/2014DE102013215891A1 Verfahren und Vorrichtung zur Überwachung einer Reduktionsmittellösungszusammensetzung im Abgassystem eines Verbrennungsmotors Method and device for monitoring of a reducing agent solution composition in the exhaust system of a combustion engine
02/20/2014DE102012107430A1 Verfahren zum Betrieb einer Dosiervorrichtung Method for operating a metering device
02/19/2014EP2697487A1 Method for operating a lambda probe
02/19/2014CN103590879A System and method for testing exhaust aftertreatment
02/19/2014CN103590878A Diesel engine exhaust gas purifier diagnosing method based on sound wave signal HHT marginal spectrum
02/19/2014CN103590877A Method and device for monitoring reducing agent solution composition in exhaust gas system of internal combustion engine
02/13/2014DE102013108387A1 Katalysatorverschlechterungsdetektionssystem Catalyst deterioration detection system
02/13/2014DE102011008496B4 Verfahren zur Überwachung eines Partikelfilters Method for monitoring a particle filter
02/13/2014DE102010022317B4 Regenerationssysteme für Partikelfilter unter Verwenden von virtuellen Bricktemperatursensoren Regeneration systems for particulate Using virtual Brick temperature sensors
02/13/2014DE102007048751B4 Verschlechterungsdiagnosesystem für einen Luft/Kraftstoff-Verhältnis-Sensor Deterioration diagnostic system for an air / fuel ratio sensor
02/12/2014CN103573363A System and method for monitoring a particulate filter in a vehicle exhaust aftertreatment device
02/12/2014CN103573362A NOx-flowrate and temperature correction during soot mass estimation in vehicle exhaust after-treatment device
02/12/2014CN103573361A Accumulated ash correction during soot mass estimation in a vehicle exhaust aftertreatment device
02/12/2014CN103573360A Vehicle having system and method of diagnosing secondary air injection apparatus
02/12/2014CN103573359A Urea crystallization detecting and testing method of SCR tail gas treatment system of engine
02/12/2014CN103573358A Urea crystallization detecting and testing method of SCR tail gas treatment system of engine
02/12/2014CN103573357A System for controlling an after-treatment system (ats) temperature of a combustion engine
02/12/2014CN103573345A A method of operating a conveyor and proportioning system
02/12/2014CN102536406B Particulate matter sensor and measurement method thereof
02/06/2014WO2014020251A1 Method for controlling a particle filter of a motor vehicle on the basis of the level of damage of same
02/06/2014US20140036617 Exhaust gas dilution device and pm measurement system
02/06/2014US20140033680 System and method for monitoring a particulate filter in a vehicle exhaust aftertreatment device
02/06/2014US20140033679 Accumulated ash correction during soot mass estimation in a vehicle exhaust aftertreatment device
02/06/2014US20140033678 Nox-flowrate and temperature correction during soot mass estimation in a vehicle exhaust after-treatment device
02/06/2014DE102013214757A1 NOx-Durchfluss- und Temperaturkorrektur während einer Russmassenschätzung in einer Abgasnachbehandlungsvorrichtung eines Fahrzeugs NOx flow and temperature correction during a soot mass estimation in an exhaust aftertreatment device of a vehicle
02/06/2014DE102013214656A1 System und Verfahren zum Überwachen eines Partikelfilters in einer Fahrzeug-Abgasnachbehandlungsvorrichtung System and method for monitoring a particle filter in a vehicle exhaust aftertreatment device
02/06/2014DE102013214653A1 Korrektur von angesammelter Asche während einer Rußmassenschätzung in einer Abgasnachbehandlungsvorrichtung eines Fahrzeugs Correction of ash accumulated during a Rußmassenschätzung in an exhaust aftertreatment device of a vehicle
02/06/2014DE102013214541A1 Method for diagnosing fault in oxygen sensor e.g. wideband sensor, of vehicle, involves increasing error count when actual ratio is different from desired ratio and diagnosing fault when error count is greater than predetermined value
02/06/2014DE102013214476A1 Entstickung während motorleerlaufabschaltungsoperationen Denitrification during engine idle shutdown operations
02/06/2014DE102013214416A1 Entstickung während einer zylinderdeaktivierung Denitrification during a cylinder deactivation
02/06/2014DE102013108391A1 Katalysatordiagnosevorrichtung Catalyst diagnostic device
02/06/2014DE102012213601A1 Method for checking wide band lambda probe for analysis of exhaust gas i.e. oxygen, in internal combustion engine of motor car, involves impressing preset current by Nernst cell, and detecting change of voltage of cell due to preset current
02/06/2014DE102012213525A1 Method for monitoring of conveying and dosing system for selective catalytic reduction catalyst in internal combustion engine, involves carrying out comparison measurement with internal reference for monitoring functioning of dosing module
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ... 71