| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 09/17/2002 | US6450018 Process and device for monitoring and observation of aging of a catalytic converter in exhaust gas of internal combustion engines and of emission of hazardous materials |
| 09/17/2002 | US6449944 Method of judging deterioration of emission gas control catalyst device |
| 09/17/2002 | US6449943 Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas |
| 09/12/2002 | WO2002070873A1 Device and method for diagnosing internal combustion engine and internal combustion engine control method using the device and method |
| 09/12/2002 | WO2002070116A1 Assembly and method for mixing gases |
| 09/12/2002 | US20020127151 Controlling the operating condition of a plasma generator mounted in an exhaust passage |
| 09/12/2002 | US20020124552 Diagnostic equipment for an exhaust gas cleaning apparatus |
| 09/12/2002 | US20020124551 Method for identifying the state of an NOx storage catalyst |
| 09/11/2002 | EP1239126A2 Exhaust gas purifying apparatus for internal combustion engine |
| 09/06/2002 | WO2002068807A1 Exhaust gas purifier for internal combustion engines |
| 09/04/2002 | EP1236873A2 Catalyst deterioration detection device for internal combustion engine |
| 09/04/2002 | EP0974002B1 PROCESS FOR MONITORING A NOx ACCUMULATOR |
| 08/29/2002 | WO2002066803A1 Method and device for detecting a temperature variable |
| 08/29/2002 | WO2002066802A1 Method and device for controlling an internal combustion engine |
| 08/29/2002 | US20020120386 Method and apparatus for determining oxygen storage capacity time of a catalytic converter |
| 08/29/2002 | US20020116991 Exhaust-gas purification device for internal combustion engine |
| 08/29/2002 | DE10108182A1 Verfahren und Vorrichtung zur Ermittlung einer Temperaturgröße Method and device for determining a temperature variable |
| 08/27/2002 | US6439038 Method for monitoring the operability of a lambda sensor |
| 08/22/2002 | US20020112468 Catalytic converter thermal aging method and apparatus |
| 08/22/2002 | US20020112467 Apparatus for detecting fault in exhaust system of internal combustion engine |
| 08/14/2002 | EP1230471A1 Method for operating an accumulator-type catalytic converter of an internal combustion engine |
| 08/14/2002 | CN1364214A Exhaust emission control for engine |
| 08/13/2002 | US6432168 Measuring arrangement and method for monitoring the operability of a soot filter |
| 08/08/2002 | US20020106947 Exhaust emission control for watercraft |
| 08/08/2002 | DE10153769A1 Verfahren und Einrichtung zur Überwachung des Schädigungsgrades eines Katalysators Method and apparatus for monitoring the degree of damage of a catalyst |
| 08/07/2002 | EP1229224A2 System for diagnosing deterioration of catalyst |
| 08/07/2002 | EP1228301A2 Method of monitoring the exhaust catalyst of an internal combustion engine |
| 08/07/2002 | CN1363014A Engine exhaust purifying device |
| 08/07/2002 | CN1363013A Engine exhaust purifying device |
| 08/07/2002 | CN1363012A Engine exhjaust purification device |
| 08/06/2002 | US6427438 Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas |
| 08/01/2002 | DE10065123A1 Verfahren zur Steuerung einer Diagnose eines Katalysators im Abgas eines Verbrennungsmotors Method for controlling a diagnosis of a catalytic converter in the exhaust gas of an internal combustion engine |
| 07/30/2002 | US6425242 Diagnostic system for monitoring catalyst operation using arc length ratio |
| 07/25/2002 | US20020099494 Catalyst deterioration detecting apparatus for internal combustion engine |
| 07/24/2002 | EP1225323A1 Exhaust gas purifying device for internal combustion engine |
| 07/24/2002 | EP1224385A2 METHOD FOR DIAGNOSING THE LEVEL OF DETERIORATION OF AN NOx CATALYST LOCATED IN THE EXHAUST CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 07/23/2002 | US6422006 Exhaust gas purifying apparatus for internal combustion engine |
| 07/18/2002 | WO2002033235A3 Method and device for diagnosing the storing properties of a nox storage catalyst |
| 07/18/2002 | US20020092292 Emission control apparatus for engine and method for reducing emissions of engine |
| 07/16/2002 | US6418711 Method and apparatus for estimating lean NOx trap capacity |
| 07/11/2002 | WO2002053892A1 Method for control of a diagnosis of a catalyst in the exhaust of an internal combustion engine |
| 07/10/2002 | EP0883737B1 Method for monitoring catalytic converter performance |
| 07/04/2002 | WO2002052130A1 Internal combustion engine comprising a secondary air charge and a method for controlling the secondary air-charge assembly |
| 07/04/2002 | DE10065125A1 Computer modeling system for temperature in exhaust system for vehicle includes effects of evaporation of water in exhaust system and includes several comparator circuits |
| 07/04/2002 | DE10064499A1 Recognizing state of nitrogen oxide storage catalyst in exhaust gas stream of IC engine involves detecting two independent electrical parameters of electrical complex impedance of catalyst |
| 07/04/2002 | DE10064481A1 Brennkraftmaschine mit Sekundärluftaufladung und Verfahren zur Regelung des Sekundärluftladers Internal combustion engine with secondary air charging and method for regulating the secondary air charger |
| 06/25/2002 | US6408686 Exhaust system monitor |
| 06/25/2002 | US6408617 Diagnostic equipment for an exhaust gas cleaning apparatus |
| 06/25/2002 | US6408616 Diesel OBD-II system for detection of degradation of catalyst activity |
| 06/20/2002 | US20020073693 System for diagnosing deterioration of catalyst |
| 06/20/2002 | DE10154261A1 Verfahren zur Bestimmung der Beladung eines Teilchenfilters im Abgasweg eines Motors Method for determining the loading of a particulate filter in the exhaust path of an engine |
| 06/19/2002 | EP1214511A1 METHOD FOR MONITORING THE FUNCTIONING OF AN NO x? SENSOR ARRANGED IN AN EXHAUST GAS CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 06/19/2002 | EP1214510A2 Engine exhaust purification arrangement |
| 06/19/2002 | EP1214505A1 Method for operating an internal combustion engine |
| 06/19/2002 | EP1214504A1 Method and system for monitoring the operating conditions of an internal combustion engine catalytic converters |
| 06/18/2002 | US6405528 Method for determining load on particulate filter for engine exhaust, including estimation of ash content |
| 06/13/2002 | DE10059403A1 Monitoring functionality of exhaust gas post-treatment unit in vehicles comprises sensor in exhaust gas line connected to signal determining unit and air feed unit |
| 06/11/2002 | US6401453 Method and device for monitoring the functional ability of a catalyst of an internal combustion engine |
| 06/11/2002 | US6401452 Catalytic monitoring method |
| 06/11/2002 | US6401451 Degradation discrimination system of internal combustion engine exhaust gas purification system |
| 06/11/2002 | US6401450 Catalyst deterioration detector and method of detecting deterioration of catalyst |
| 06/06/2002 | WO2002044531A1 Method for monitoring a particle filter system in the exhaust gas train of an internal combustion engine |
| 06/06/2002 | DE10059683A1 Verfahren zur Überwachung eines Partikelfiltersystems im Abgasstrang einer Brennkraftmaschine Method for monitoring a particle filter system in the exhaust line of an internal combustion engine |
| 06/05/2002 | EP1210508A2 Engine exhaust purification device |
| 06/04/2002 | US6397587 System and method for monitoring the loading of a diesel particulate filter |
| 06/04/2002 | US6397585 Catalyst temperature estimating apparatus |
| 06/04/2002 | US6397583 Method for catalyst monitoring using flex fuel |
| 05/28/2002 | US6393833 Abnormality test method and apparatus for secondary air supply system of a vehicle |
| 05/23/2002 | DE10100543A1 Sekundärluftzufähreinheit Sekundärluftzufähreinheit |
| 05/22/2002 | EP1207280A2 Secondary air supply device |
| 05/21/2002 | US6389805 Method for the diagnosis of an exhaust gas purification system for an internal combustion engine |
| 05/21/2002 | US6389804 Degradation discrimination system of internal combustion engine exhaust gas purification system |
| 05/20/2002 | CA2326469A1 Engine emission analyzer |
| 05/16/2002 | WO2002038923A1 Method and device for controlling an exhaust gas aftertreatment system |
| 05/16/2002 | DE10056015A1 Control method for motor vehicle internal combustion engine exhaust gas return circuit involves comparing two operating condition values and adjusting them to correspond |
| 05/16/2002 | DE10053828A1 Controlling catalyst comprises measuring temperature gradient over catalyst path during operation of catalyst, and ignoring and/or suppressing gradient measured at zero or close to zero in heating-up phase |
| 05/15/2002 | EP1204817A1 Method for monitoring a secondary air system associated with the exhaust system of a vehicle |
| 05/15/2002 | EP0930930B1 PROCESS FOR REMOVING NOx FROM EXHAUST FUMES |
| 05/09/2002 | US20020053203 Adsorbent state determining apparatus |
| 05/09/2002 | US20020053199 Failure determination device for humidity sensor and control system for exhaust passage changeover valve |
| 05/09/2002 | US20020053198 Exhaust emission control device for internal combustion engine |
| 05/08/2002 | EP1203878A2 Failure determination device for humidity sensor and control system for exhaust passage changeover valve |
| 05/08/2002 | DE10053669A1 Cleaning secondary air lines involves cleaning phase with secondary air blown into secondary air lines to loosen deposits at higher pressure than for heating and desulferizing phases |
| 05/08/2002 | DE10036942A1 Modeling of axial distribution of exhaust catalyst temperature, slices catalyst into discs, calculating temperature of each as function of approaching exhaust gas temperature |
| 05/07/2002 | US6383267 Exhaust gas cleaning system for an engine |
| 05/02/2002 | EP1201900A2 Control method for an internal combustion engine with exhaust gas catalyst |
| 05/02/2002 | EP1200811A1 Method for detecting the state of a catalytic converter system |
| 05/02/2002 | DE10053629A1 Steuerverfahren für einen Verbrennungsmotor mit einem Abgas-Katalysator A control method for an internal combustion engine with an exhaust gas catalyst |
| 05/02/2002 | DE10008564A1 Nitrogen oxide storage catalyst diagnosis process, involving reporting value of characteristics of desorption peak as storage catalyst changes mode |
| 05/02/2002 | DE10008563A1 Nitrogen oxide storage catalyst diagnosis process, involving reporting value of characteristics of desorption peak as storage catalyst changes mode |
| 04/30/2002 | US6378359 Method and system for evaluating exhaust on-board diagnostics system |
| 04/30/2002 | US6378296 Degradation discrimination system of internal combustion engine exhaust gas purification system |
| 04/25/2002 | WO2002033235A2 Method and device for diagnosing the storing properties of a nox storage catalyst |
| 04/25/2002 | DE10140048A1 System for monitoring loading of diesel particle filter compares induction manifold pressure signal with rated pressure selected based on engine operating attribute sensor signal |
| 04/23/2002 | US6375828 Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor |
| 04/23/2002 | US6374596 Exhaust-gas cleaning devices for engine |
| 04/18/2002 | WO2002031324A1 Exhaust emission control device of internal combustion engine |
| 04/18/2002 | DE10051012A1 Process for diagnosing the storage properties of a nitrogen oxides storage catalyst arranged in the exhaust gas pipe of an I.C. engine comprises determining an actual storage time period |
| 04/17/2002 | EP1196681A1 Method for controlling a rich/lean combustion mixture in a defined manner |
| 04/11/2002 | US20020040577 Air-fuel ratio control apparatus of internal combustion engine |