| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 04/11/2002 | DE10146372A1 Device for determining the deterioration of a catalyst used for purifying I.C. engine exhaust gases comprises a unit for determining the concentration of the sulfur |
| 04/10/2002 | EP1195507A2 Air-fuel ratio control apparatus of internal combustion engine |
| 04/09/2002 | US6367320 Process for monitoring operation of an exhaust gas treatment system |
| 04/09/2002 | US6367245 Method of evaluating deteriorated state of exhaust gas adsorbent |
| 04/04/2002 | WO2002027162A1 Method for controlling the operation of a particle filter for internal combustion engine |
| 04/03/2002 | EP1192343A1 METHOD FOR INITIATING AND MONITORING A DESULFURIZATION OF AT LEAST ONE NO x? STORAGE-TYPE CATALYTIC CONVERTER ARRANGED IN AN EXHAUST CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 04/03/2002 | EP1192340A1 Method for verifying a catalytic exhaust box of an internal combustion engine |
| 04/03/2002 | EP1121513B1 Method for reducing nitrogen oxide in the exhaust gases of an internal combustion engine operated with a lean mixture |
| 04/02/2002 | US6363771 Emissions diagnostic system |
| 04/02/2002 | US6363713 On-board diagnostics for detecting the operation of diesel emissions control system |
| 03/28/2002 | DE10046249A1 Exhaust HC measurement unit operational during cold start, contains HC storage component and heater in addition to measurement and reference electrodes |
| 03/28/2002 | DE10032571A1 Catalyst system monitoring method for internal combustion engine of vehicle, involves determining catalyst state code value based on amount of NOx present in exhaust gas corresponding to rich and lean air fuel ratio |
| 03/28/2002 | DE10010745A1 Catalyst system monitoring method for internal combustion engine of vehicle, involves processing primary status parameters and secondary parameters using artificial neuronal network |
| 03/27/2002 | EP1191196A2 NOx trap capacity |
| 03/27/2002 | EP1190164A1 METHOD FOR DETECTING DETERIORATION OF AT LEAST ONE NO x? STORAGE CATALYST ARRANGED IN THE EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE |
| 03/21/2002 | WO2001063105A3 Engine exhaust purification device |
| 03/20/2002 | EP1187670A1 CALIBRATION OF AN NOx SENSOR AND REGULATION OF AN UPSTREAM NOx STORAGE CATALYST |
| 03/20/2002 | EP1029164B1 A method of monitoring efficiency of a catalytic converter and a control system suitable for use in the method |
| 03/20/2002 | EP0928366B1 Secondary-air system for an internal combustion engine |
| 03/20/2002 | CN1341191A Method for operating accumulator-type catalytic converter of IC engine |
| 03/20/2002 | CN1341190A Method for operating IC engine in particular of motor vehicle |
| 03/19/2002 | US6357225 Failure diagnosing device for exhaust gas purifying apparatus |
| 03/19/2002 | US6357224 Engine exhaust gas purifying apparatus |
| 03/14/2002 | WO2001063109A3 Engine exhaust purification arrangement |
| 03/14/2002 | US20020029562 Engine exhaust purifying apparatus |
| 03/14/2002 | US20020029561 Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas |
| 03/14/2002 | DE10135759A1 Determination of catalyst efficiency using e.g. temperature- and carbon monoxide sensors involves estimating degree of conversion from engine condition, temperature and concentration measurements |
| 03/14/2002 | DE10038461A1 Determining distribution of nitrate and sulfate in nitrogen oxide storage catalyst involves employing finite element model describing local nitrogen oxide and sulfur oxide exchange in terms of storage efficiency factors |
| 03/12/2002 | US6354076 Exhaust gas purification system of internal combustion engine |
| 03/07/2002 | US20020026790 Exhaust gas purifying facility with nitrogen oxides absorption-reduction catalyst |
| 03/07/2002 | US20020026789 Apparatus for detecting deterioration of exhaust gas purifying catalysts |
| 03/07/2002 | DE10039709A1 Verfahren und Steuergerät zum Bestimmen des Zustands eines Stickoxid (NOx)-Speicherkatalysators A method and control apparatus for determining the condition of a nitrogen oxide (NOx) storage catalytic converter |
| 03/07/2002 | DE10039708A1 Verfahren und Modell zur Modellierung einer Ausspeicherphase eines Stickoxid-Speicherkatalysators Method and model to model a discharge phase of a nitrogen oxide storage catalytic converter |
| 03/06/2002 | EP1184548A2 Catalyst deterioration detection device for internal combustion engine |
| 03/06/2002 | EP1183455A1 Engine exhaust purification device |
| 02/28/2002 | US20020023430 Diagnostic equipment for an exhaust gas cleaning apparatus |
| 02/28/2002 | DE10039965A1 Verfahren und Anordnung zur Abgasuntersuchung an Kraftfahrzeugen mit bordeigenem Motorsteuerungs- und Diagnosesystem Method and apparatus for emissions test on motor vehicles with on-board motor control and diagnostic system |
| 02/26/2002 | US6349540 Catalyst deterioration determining apparatus for internal combustion engine, and control method for the apparatus |
| 02/21/2002 | WO2002014828A2 Method and system for performing an exhaust gas analysis on motor vehicles having an on-board engine control and diagnostic system |
| 02/21/2002 | WO2002014659A1 Method and model for modeling an elimination phase of a nitrogen oxide accumulating catalytic converter |
| 02/21/2002 | WO2002014658A1 Method and control device for determining the state of a nitrogen oxide (nox) storage catalyst |
| 02/21/2002 | US20020022272 Method and apparatus for accelerated catalyst poisoning and deactivation |
| 02/14/2002 | WO2001049983A3 Method for operating an internal combustion engine in particular in a motor vehicle |
| 02/14/2002 | US20020017467 Methods and apparatus for measuring nox gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor |
| 02/12/2002 | US6345498 Exhaust gas purifier for internal combustion engine |
| 02/07/2002 | DE10035525A1 Verfahren zum Betreiben eines Katalysators A method of operating a catalyst |
| 02/07/2002 | DE10034143A1 Verfahren zur Adaption eines Katalysatortemperatur-Sollbereichs für einen NOx-Speicherkatalysator A method for adapting a catalyst temperature setpoint range for a NOx storage catalytic converter |
| 02/06/2002 | EP1178188A2 Method and system for dircetly monitoring the efficiency of a conditioning catalyst |
| 02/05/2002 | US6343466 System for diagnosing deterioration of catalyst |
| 01/31/2002 | WO2002008594A1 Method for operating a catalyst |
| 01/31/2002 | WO2002008581A2 Exhaust gas purification device |
| 01/31/2002 | US20020012623 Process for checking the operatability of a nitrogen oxide storage catalyst |
| 01/31/2002 | US20020011066 Fault determining apparatus for exhaust passage switching valve |
| 01/31/2002 | DE10133944A1 Diesel On-Board-Diagnostic-II system for detecting degradation in catalyser activity indicates when current hydrocarbon conversion value exceeds target emission capability threshold |
| 01/30/2002 | EP1176295A2 Apparatus and method for diagnosing reducing-agent supplying device in internal combustion engine |
| 01/30/2002 | EP1176292A1 Exhaust gas purifying apparatus of internal combustion engine |
| 01/30/2002 | EP1175554A1 Engine exhaust purification device |
| 01/24/2002 | WO2002006654A1 Method for adapting a required catalyst temperature range for a nox storage catalyst |
| 01/24/2002 | US20020007628 Method for determining emission control system operability |
| 01/24/2002 | US20020007626 Catalyst temperature estimating apparatus |
| 01/24/2002 | DE10033730A1 Schaltungsanordnung zur Kompensation von Störgrößen in der Regelschleife einer Iinearen Lambdasonde Circuitry to compensate for disturbances in the control loop Iinearen a lambda probe |
| 01/23/2002 | EP1174601A2 Monitoring of diesel emissions control system |
| 01/23/2002 | EP1174600A2 Emission control system and method of internal combustion engine |
| 01/23/2002 | EP1173665A1 Engine exhaust purification device |
| 01/23/2002 | EP1173661A1 Exhaust emission control for engine |
| 01/17/2002 | WO2002004792A1 Circuit arrangement for compensating parasitic signals in the closed loop of a linear lambda probe |
| 01/17/2002 | WO2001057369A3 Engine exhaust purification device |
| 01/17/2002 | US20020005064 Apparatus and method for detecting catalyst temperature |
| 01/17/2002 | US20020005039 Process for operating an exhaust gas treatment device for a gasoline engine |
| 01/16/2002 | EP1172537A1 Method and apparatus for controlling the regeneration of a particle filter in an exhaust gas system of an internal combustion engine |
| 01/16/2002 | CN2471935Y Silencing purifier for vehicle |
| 01/15/2002 | US6338243 Exhaust emission control system for internal combustion engine |
| 01/10/2002 | DE10031924A1 Effectiveness checking method for heating catalytic converter in internal combustion engine, involves evaluating heating measure based on comparison result of catalytic converter temperature with predetermined value |
| 01/10/2002 | DE10028882A1 Carrying out nitrogen oxides regeneration of nitrogen oxides storage catalyst in IC engine comprises using nitrogen oxides storage activity values of storage catalyst during all or one part of rich phases |
| 01/09/2002 | CN2470543Y Regenerated-heat impaction checking apparatus for exhust-gas micro-particle filter body of disel engine |
| 01/09/2002 | CN1330745A Method for reducing nitrogen oxide in exhaust gases of internal-combustion engine operated with lean mixture |
| 01/09/2002 | CN1330215A Checking for heating measure of internal-combustion engine catalyst |
| 01/09/2002 | CN1330213A Waste gas purifying device with nitrogen oxide absorption reduction catalast |
| 01/03/2002 | US20020000087 Method and arrangement for checking catalytic converter heating measures in an internal combustion enqine |
| 01/03/2002 | DE10023080A1 Monitoring storage capability of nitrogen oxides storage catalyst arranged in lean burn IC engine comprises using characteristic value for storage capability of catalyst from nitrogen oxides concentration |
| 01/03/2002 | DE10023079A1 Controlling regeneration of nitrogen oxides storage catalyst arranged in exhaust gas pipe of IC engine comprises establishing regeneration parameters before and after catalyst at the end of regeneration |
| 01/03/2002 | DE10023060A1 Determining aging state of nitrogen oxides storage catalyst arranged in exhaust gas stream of IC engine comprises calculating theoretical regeneration |
| 01/01/2002 | US6334304 Degradation discrimination system of internal combustion engine exhaust gas purification system |
| 12/27/2001 | US20010054285 Exhaust gas purifying apparatus for internal combustion engine |
| 12/27/2001 | US20010054282 Apparatus and method for monitoring NOx storage catalytic converters |
| 12/27/2001 | US20010054281 Non-engine based exhaust component rapid aging system |
| 12/19/2001 | EP1164268A2 Arrangement for monitoring a NOx-trap |
| 12/18/2001 | US6330795 Diagnostic equipment for an exhaust gas cleaning apparatus |
| 12/13/2001 | DE10027410A1 Abgasreinigungssystem mit verzögerter Meßwerterfassung Emission control system with delayed data acquisition |
| 12/13/2001 | DE10023791A1 Process for controlling an exhaust gas purification system of IC engine comprises controlling an operating parameter of the engine and/or at least one instrument of the exhaust gas |
| 12/12/2001 | EP1161619A1 Method for monitoring the function of catalysts in internal combustion engines |
| 12/12/2001 | CN1326530A Method for monitoring NOx storage catalytic converters and exhaust-gas purification device for carrying out said method |
| 12/11/2001 | US6327847 Method for improved performance of a vehicle |
| 12/06/2001 | WO2001092697A1 Exhaust-gas purification system comprising a deferred measured value recording |
| 12/06/2001 | WO2001091890A1 System for sensing catalyst coating loss and efficiency |
| 12/06/2001 | WO2001044629A3 Device and method for determination of exhaust gas and catalyst temperature |
| 12/06/2001 | DE10017931A1 Verfahren zur Diagnose einer Abgasreinigungsanlage einer lambdageregelten Brennkraftmaschine A method for diagnosing an emission control system of a lambda-controlled internal combustion engine |
| 12/05/2001 | EP1159519A1 Method for operating a three-way catalyst of an internal combustion engine |
| 12/05/2001 | EP1159518A1 Method for operating a storage catalyst of an internal combustion engine |
| 12/05/2001 | EP1159517A1 Method for operating the catalyst of an internal combustion engine |