| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 08/06/2008 | EP1951999A1 Air-fuel-ratio control apparatus for internal combustion engine |
| 08/06/2008 | CN101235741A Emission control diagnostic system and method |
| 08/05/2008 | US7409247 Method and system for estimating a quantity of particles emitted in the exhaust gas of a diesel engine for a motor vehicle |
| 07/31/2008 | WO2008091496A2 Honeycomb filter defect detecting method |
| 07/31/2008 | WO2008090433A1 Closed loop control of exhaust system fluid dosing |
| 07/31/2008 | WO2008090125A1 Method for achieving plausibility of a pressure difference value determined by means of a particle filter |
| 07/31/2008 | US20080178853 Exhaust Gas Recirculation System |
| 07/31/2008 | US20080178576 Gps-activated exhaust filtration monitoring and control system |
| 07/31/2008 | DE102007003153A1 Verfahren zur Plausibilisierung eines ermittelten Differenzdruckwerts über einen Partikelfilter Method for determining the plausibility of a determined pressure difference value with a particulate filter |
| 07/31/2008 | DE102007000892A1 Gerät zum Diagnostizieren eines anomalen Betriebs eines Gerätes zum Erfassen einer Druckdifferenz für ein Brennkraftmaschinenabgassystem Apparatus for diagnosing an abnormal operation of a device for detecting a pressure difference for an engine exhaust system |
| 07/30/2008 | EP1801375B1 Method for detecting abnormality occurred in exhaust gas clarification device |
| 07/30/2008 | CN101230795A Method for monitoring an exhaust gas secondary treatment system in an internal combustion engine |
| 07/30/2008 | CN100406694C Sulfur purge control method and exhaust gas purifying system |
| 07/24/2008 | WO2008088285A1 A method and an arrangement for monitoring the functioning of an exhaust gas after treatment system |
| 07/24/2008 | US20080173011 System for controlling regeneration of exhaust gas aftertreatment components |
| 07/24/2008 | US20080173010 System and method for inhibiting uncontrolled regeneration of a particulate filter for an internal combustion engine |
| 07/23/2008 | EP1945925A2 Methods for controlling and making particle filtering devices |
| 07/23/2008 | CN101228436A Method and system for detecting soot and ash concentrations in a filter |
| 07/23/2008 | CN101226105A Steel-ball-rolling machine for testing engine exhaust pipe |
| 07/17/2008 | US20080168824 Method for on-board diagnostics of diesel engine NOx adsorber catalysts |
| 07/17/2008 | DE102007062769A1 Diagnosis performing method for e.g. tractor-trailer, involves comparing minimum delta of inlet and outlet pressure in memory with minimum period of time to determine whether sensor is accurate |
| 07/17/2008 | DE102007059474A1 Dieselabgassteuerung während eines Notlaufmodus Diesel exhaust control during emergency mode |
| 07/17/2008 | DE102005006490B4 Verfahren zum Betreiben einer Brennkraftmaschine eines Fahrzeuges, insbesondere eines Kraftfahrzeuges A method of operating an internal combustion engine of a vehicle, in particular of a motor vehicle |
| 07/16/2008 | EP1944481A2 Device for estimating the loading state of a NOx storage catalytic converter |
| 07/16/2008 | EP1943415A1 Measuring of a soot deposition homogeneity in a particle filter and said filter regeneration control |
| 07/16/2008 | EP1943414A2 System for particulate matter sensor signal processing |
| 07/16/2008 | CN101220952A Method and apparatus for testing catalytic converter durability |
| 07/16/2008 | CN100402803C Method and apparatus for determining the activity and aging behavior of a catalyst |
| 07/10/2008 | WO2008081281A1 Control system of internal combustion engine |
| 07/10/2008 | WO2008059153A3 Estimation of exhaust gas temperature at the output of the egr circuit of a combustion engine |
| 07/10/2008 | US20080163611 Procedure for the desulfurization of a storage catalyst and the device for the implementation of this procedure |
| 07/10/2008 | DE102007061466A1 Verfahren zum Betreiben eines elektronisch gesteuerten Brennkraftmotors A method of operating an electronically controlled internal combustion engine |
| 07/09/2008 | CN101218420A Method for diagnosing at least one waste gas discharge control unit, device and computer program product |
| 07/09/2008 | CN100400810C Waste gas purifying device with nitrogen oxide absorption reduction catalast |
| 07/08/2008 | US7396389 Abnormality detection apparatus for exhaust gas purification apparatus for internal combustion engine |
| 07/03/2008 | WO2008079820A2 System for controlling regeneration of exhaust gas aftertreatment components |
| 07/03/2008 | WO2008079772A2 System and method for inhibiting uncontrolled regeneration of a particulate filter for an internal combustion engine |
| 07/03/2008 | WO2008079299A2 Software, methods and systems including soot loading metrics |
| 07/03/2008 | WO2008079183A1 Particulate loading monitoring system |
| 07/03/2008 | US20080155963 Method of estimating soot accumulation amount of exhaust gas purification filter, and computer program product therefor |
| 07/03/2008 | DE102007061467A1 Internal combustion engine e.g. high power diesel engine, operating method for e.g. lorry, involves comparing data signals to emission levels with calibratable values in memory, and recording error in memory area only with RAM |
| 07/03/2008 | DE102006062516A1 Catalytic converter i.e. three-way catalytic converter, oxygen storage capacity determining method for exhaust gas system of internal combustion engine of motor vehicle, involves determining oxygen storage capacity based on oxygen amount |
| 07/03/2008 | DE102006062515A1 Particle filter function monitoring method for exhaust gas system of internal combustion engine i.e. diesel engine, involves measuring concentration of one of nitric oxide and nitrogen dioxide, in exhaust gas mass flow, using sensor |
| 07/03/2008 | DE102006062057A1 Gas e.g. hydrogen, mixture composition determining method for use in motor vehicle, involves selecting pump voltage such that part of carbon-di-oxide-uniform weight is less than one-tenth of part of hydrogen-uniform weight of current |
| 07/03/2008 | DE102006061684A1 Oxygen level controlling method for internal combustion engine, involves modulating exhaust gas composition between threshold values such that lean and fat adjustments of composition are terminated, when amount reaches values, respectively |
| 07/03/2008 | DE102004013604B4 Verfahren zum Schätzen einer Nox-Absorptionsmenge A method for estimating a NOx absorption amount |
| 07/02/2008 | CN101210520A Air/fuel ratio control device for internal combustion engine |
| 07/02/2008 | CN101210509A Oxygen level method for regulating waste gas cleaning equipment |
| 06/26/2008 | US20080154481 Adaptive oxygen sensor methods, systems, and software |
| 06/26/2008 | US20080148709 Dynamic rich time capability for aftertreatment systems |
| 06/26/2008 | DE102007059473A1 Emissionserfüllung für ein Abgasnachbehandlungssystem mit einer Dosiermittelzufuhr Emission performance for an exhaust aftertreatment system with a dosing agent |
| 06/26/2008 | DE102007054612A1 Flexible-Fuel-Tolerantes Katalysator-Diagnoseverfahren Flexible-Fuel-tolerant catalyst diagnostic procedures |
| 06/26/2008 | DE102007025377A1 Luft/Kraftstoff-Verhältnis-Steuervorrichtung für einen Verbrennungsmotor Air / fuel ratio control apparatus for an internal combustion engine |
| 06/26/2008 | DE10115842B4 Vielschichtiges Gassensorelement zur Verwendung bei einem Abgassystem eines Verbrennungsmotors Multilayered gas sensor element for use in an exhaust system of an internal combustion engine |
| 06/26/2008 | DE10026988B4 Katalysatorverschlechterungs-Erfassungsvor- richtung für eine Brennkraftmaschine Catalyst deterioration Erfassungsvor- device for an internal combustion engine |
| 06/25/2008 | EP1936140A1 Method for monitoring an exhaust gas secondary treatment system in an internal combustion engine |
| 06/25/2008 | EP1936139A1 Differential pressure calculating device and method for calculating differential pressure between the upstream section and the downstream section of filter, and deposition amount estimating device and method for estimating deposition amount of particulate matter on the filter |
| 06/25/2008 | EP1934447A1 Method for estimating an engine exhaust temperature and method for diagnosing a cylinder pressure sensor using an exhaust temperature estimate |
| 06/25/2008 | CN100396895C Apparatus for feeding secondary air to exhaust gas in engine |
| 06/24/2008 | US7389637 Diagnostic equipment for an exhaust gas cleaning apparatus |
| 06/19/2008 | WO2008050216A3 Catalyst deterioration detecting system of internal combustion engine |
| 06/19/2008 | DE10345405B4 Katalysatorverschlechterungs-Detektionsvorrichtung A catalyst deterioration detection device |
| 06/19/2008 | DE102006059673A1 System for determining operational value in exhaust gas system of internal combustion engine of vehicle, has model simulation of exhaust gas plant components of exhaust gas plant, where model has inlets and outlet |
| 06/19/2008 | DE102006059587A1 Method for determining condition value of catalyzer arranged in exhaust gas unit of internal combustion engine, involves operating internal combustion engine to certain time point in throttle cutoff phase |
| 06/19/2008 | DE102006059081A1 Method e.g. for catalyst diagnosis, involves determining conversion properties of catalyst targeted by Lambda variation of lambda value before catalyst and is set out through exhaust probe with lambda value behind catalyst |
| 06/19/2008 | DE102006058425A1 Motor exhaust gas return to the air intake has a hot film anemometer with separate heat and temperature measurement resistance layers |
| 06/18/2008 | EP1931865A1 A diagnostic method for an exhaust aftertreatment system |
| 06/18/2008 | EP1931863A2 System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line |
| 06/18/2008 | EP1625287B1 Method of operating a catalyst which includes components for storing hydrocarbons |
| 06/12/2008 | WO2008068226A1 Method for diagnosing that a nitrogen oxides trap has been poisoned |
| 06/12/2008 | US20080140297 Internal combustion engine |
| 06/12/2008 | DE102007016763B3 Diagnosis of a three-way catalyst, for an internal combustion motor exhaust, monitors jumps in the oxygen sensor voltage signals on changing between rich/lean mixtures to detect oxygen storage capabilities |
| 06/12/2008 | DE102006055562A1 Method for on-board-estimation of soot emission of internal combustion engine in vehicle, involves collecting soot particles by exhaust gas post treatment system, and saving multiple engine characteristics |
| 06/11/2008 | EP1929133A2 Dpf regeneration monitoring method |
| 06/11/2008 | EP1687515B1 Method for estimating a quantity of particles emitted into the exhaust gas of a diesel engine for a motor vehicle |
| 06/11/2008 | CN100393993C Exhaust emission control method and device for engine |
| 06/05/2008 | US20080131346 Exhaust emission control device and method for internal combustion engine, and engine control unit |
| 06/05/2008 | US20080127640 Exhaust gas purifying device for an internal combustion engine |
| 06/05/2008 | US20080127633 Exhaust system providing in situ sensor calibration |
| 06/04/2008 | EP1926543A1 Method for operating an internal combustion engine and device for implementing the method |
| 05/29/2008 | DE102006055542A1 Emission control component diagnozing method for motor vehicle, involves determining expected value of pipe emission with accepted operation of engine in process by charging measured pipe emission value with characteristic data of engine |
| 05/29/2008 | DE102006055238A1 Nitrogen oxide-storage catalyzer's nitrogen oxide-storage capability determining method for use in e.g. diesel engine, involves determining storage capability of nitrogen oxide storage catalyzers with larger loading of nitrogen oxide |
| 05/29/2008 | DE102006055237A1 Verfahren zur Prüfung der Vollständigkeit einer Regeneration eines Partikelfilters im Abgas eines Verbrennungsmotors Method for testing the completeness of a regeneration of a particulate filter in the exhaust gas of an internal combustion engine |
| 05/29/2008 | DE102006055235A1 Urea water solution's quality detecting method for exhaust gas treatment unit, involves concluding urea water solution to be of inferior quality, in case of deviation of signal from reference value at predetermined threshold value |
| 05/29/2008 | DE102006054755A1 Internal-combustion engine operating method, involves closing internal combustion engine at operating condition in pressurizing medium value, which is formed as floating average value over pressure values of ignition periods |
| 05/28/2008 | EP1924760A1 Arrangement and method in connection with a piston engine having a turbocompressor |
| 05/22/2008 | WO2008059153A2 Estimation of exhaust gas temperature at the output of the egr circuit of a combustion engine |
| 05/22/2008 | WO2008058896A1 Method for operating a reagent metering valve and apparatus for carrying out the method |
| 05/21/2008 | DE102007041884A1 Particle filter, catalyst soot filter and nitrous oxide absorbent catalyst passive regeneration method for vehicle, involves triggering engine control parameter setting to change engine operation to perform passive regeneration of filters |
| 05/20/2008 | US7373775 Method for metering ammonia into the exhaust-gas region of an internal combustion engine and device for implementing the method |
| 05/20/2008 | CA2341065C Process for checking the operatability of an exhaust gas purification catalyst |
| 05/15/2008 | US20080110239 Abnormality diagnosis apparatus for internal combustion engine |
| 05/15/2008 | US20080110238 Apparatus for diagnosing abnormal operation of pressure difference detection apparatus of internal combustion engine exhaust system |
| 05/15/2008 | DE102006053125A1 Functionality testing method for catalyst in waste gas system of combustion engine, involves preparing catalyst by bringing reducing agent into catalyst, and oxygen uptake of catalyst is determined and compared |
| 05/15/2008 | DE102006053124A1 Catalysator system operability evaluation method for motor vehicle, involves evaluating catalysator system insufficiently and functionally, if storage capability is smaller than preset value, which is determined as function of capability |
| 05/15/2008 | DE102006053103A1 Catalyst system's operability evaluating method for use in internal combustion engine, involves evaluating brace of catalyst system, to evaluate operability independently of oxygen storage capacity of main catalyst |
| 05/15/2008 | DE102006052985A1 Internal-combustion engine operating method, involves sorting error suspicion or error when engine is supplied with gaseous fuel, and/or lambda value is larger than preset threshold value and/or miss fire is detected during combustion |
| 05/15/2008 | DE102004061603B4 Verfahren zur Bestimmung der dynamischen Speicherfähigkeit des Sauerstoffspeichers eines Abgaskatalysators A method for determining the dynamic storage capacity of the oxygen storage component of an exhaust gas catalyst |
| 05/15/2008 | DE102004050629B4 Verfahren zur Bestimmung der Sauerstoffspeicherkapazität eines Oxidationskatalysators Method for determining the oxygen storage capacity of an oxidation catalyst |
| 05/15/2008 | DE102004050628B4 Verfahren zur Überprüfung der Sauerstoffspeicherkapazität eines Oxidationskatalysators Method for checking the oxygen storage capacity of an oxidation catalyst |