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)
06/2003
06/05/2003US20030101716 Auxiliary air supplying system, and control methods and failure diagnostic methods thereof
06/04/2003EP1316694A1 A method and arrangement for maintaining an exhaust gas catalyst in an effective state
06/04/2003EP1316693A1 Method and device for diagnosing the operational condition of an exhaust gas line of an internal combustion engine
06/04/2003EP1316349A1 Method of evaluating deteriorated state of hydrocarbon adsorbent
06/04/2003CN1110622C Method for monitoring NOx storage catalytic converters and exhaust-gas purifier for carrying out the same method
06/03/2003US6571602 Apparatus and method for detecting catalyst temperature
05/2003
05/30/2003WO2003016686A3 Catalytic converter function detection
05/27/2003US6568176 Engine exhaust purification device
05/22/2003US20030093993 Fuel controller
05/22/2003US20030093991 Automotive catalyst state control method
05/22/2003US20030093989 Air-fuel ratio controller for internal combustion engines
05/22/2003US20030093988 Nox trap efficiency
05/21/2003EP1311748A1 Method and model for modeling an elimination phase of a nitrogen oxide accumulating catalytic converter
05/21/2003EP1311747A1 Exhaust-gas purification system comprising a deferred measured value recording
05/21/2003CN1419629A Method for operating a catalyst
05/20/2003US6564544 Engine exhaust purification arrangement
05/20/2003US6564543 System and method for monitoring a conditioning catalyst
05/15/2003WO2003040528A1 Method for control of secondary air amounts
05/15/2003US20030089165 Adsorbent state determining apparatus
05/15/2003US20030089100 Method of evaluating deteriorated state of hydrocarbon adsorbent
05/14/2003EP1309844A2 Method and system for performing an exhaust gas analysis on motor vehicles having an on-board engine control and diagnostic system
05/13/2003US6561014 Altitude simulator for dynamometer testing
05/08/2003US20030086850 For reduction of a gas component, in particular a NOx compound; adapted for operation by a lean air/fuel mixture
05/08/2003US20030084712 Altitude simulator for dynamometer testing
05/08/2003US20030084659 Exhaust-gas purification system with delayed recording of measured values and method for determining pollutant concentration in exhaust gas
05/02/2003EP1305507A1 Method for operating a catalyst
05/01/2003WO2003036053A1 Hydrocarbon adsorbent state monitoring device
05/01/2003US20030079520 Method and apparatus for testing catalytic converter durability
04/2003
04/30/2003CN1415050A Method for operating IC engine in particular in motor vehicle
04/30/2003CN1415046A Method for operating IC engine, in particular of motor vehicle
04/30/2003CN1415045A Method for operating three-way catalyst of IC engine
04/29/2003US6553817 Method and apparatus for monitoring a catalytic converter
04/23/2003EP1303690A1 Method for adapting a required catalyst temperature range for a no x? storage catalyst
04/23/2003EP1303685A2 Exhaust gas purification device
04/23/2003EP1192340B1 Method for verifying a catalytic exhaust box of an internal combustion engine
04/22/2003US6550237 Method and system for monitoring a catalytic converter
04/22/2003US6550236 Method for operating a three-way catalyst of an internal combustion engine
04/17/2003WO2003031782A1 Nox control for an internal combustion engine
04/17/2003US20030070423 Emission control system with catalyst warm-up speeding control
04/17/2003US20030070422 Oxidant storage capacity estimation
04/17/2003US20030070421 Deterioration diagnosis of exhaust gas purification catalyst for internal combustion engine
04/17/2003US20030070420 Apparatus and method for detecting deterioration of catalyst of internal combustion engine
04/16/2003EP1302648A2 Method for controlling engine exhaust gas system
04/16/2003EP1302633A2 Deterioration diagnosis of exhaust gas purification catalyst for internal combustion engine
04/15/2003US6546719 Air-fuel ratio control apparatus of internal combustion engine
04/09/2003EP1300571A1 Fuel controller for internal combustion engine
04/09/2003EP1299623A1 Circuit arrangement for compensating parasitic signals in the closed loop of a linear lambda probe
04/09/2003EP1108124B1 METHOD FOR RECOGNIZING AND MAINTAINING THE OPERATIONAL CAPABILITY OF A NOx STORAGE CATALYTIC CONVERTER
04/09/2003CN1409801A Device and method for determination of exhaust gas and catalyst temperature
04/03/2003WO2003027466A1 Method, computer programme and control and/or monitoring apparatus for using an internal combustion engine and internal combustion engine
04/03/2003US20030061805 Secondary air supply apparatus and method for detecting abnormality thereof
04/02/2003EP1298302A1 Exhaust gas purifying method for lean burn engines
04/01/2003USRE38051 Catalytic converter decontamination method
04/01/2003US6539705 Method for monitoring and exhaust-gas catalytic converter of an internal combustion engine
03/2003
03/27/2003WO2003025355A1 Method for controlling operating conditions of a particulate filter coated with a catalytic phase for combustion engine
03/27/2003US20030056496 State determining apparatus for exhaust gas purifier
03/27/2003US20030056495 System and method for determining target oxygen storage in an automotive catalyst
03/26/2003EP1294471A1 System for sensing catalyst coating loss and efficiency
03/20/2003WO2003023202A1 Deteriorated state evaluation device for exhaust emission control equipment
03/20/2003US20030051463 Oxygen storage control of engine exhaust gas purification catalyst
03/20/2003DE19928559C2 Verfahren zur Ermittlung des Taupunktendes bei einer Steuerung von abgasrelevanten Funktionen in einem Kraftfahrzeug Method for determining the Taupunktendes in control of emission-related functions in a motor vehicle
03/19/2003EP1293648A2 Secondary air supply apparatus and method for detecting abnormality thereof
03/18/2003US6532734 On-board diagnostic catalyst monitoring system
03/13/2003WO2003021090A1 Deteriorated state evaluation device of exhaust emission control equipment
03/13/2003US20030049176 Determines a deterioration of an adsorbent arranged in an exhaust system of an internal combustion engine for purifying exhaust gases; adsorbent is capable of adsorbing hydrocarbons and moisture in exhaust gases
03/13/2003US20030046925 State determining apparatus for exhaust gas purifier
03/13/2003US20030046924 Diagnosis apparatus for internal combustion engine
03/12/2003EP1291514A2 Exhaust emission control device of engine
03/12/2003EP1291508A2 Method for detecting malfunctioning in the exhaust flap valve and/or in the intake conduit valve
03/12/2003EP1291503A2 State determining apparatus for exhaust gas purifier
03/12/2003EP1291502A2 Diagnosis apparatus for internal combustion engine
03/12/2003EP1092086B1 Method for testing the dynamic behavior of a measure sensor in the exhaust system of an internal combustion engine
03/06/2003US20030043885 Temperature control system for humidity sensor
03/06/2003US20030042151 Determination oxygen concentration; calibrating voltage; quantative analysis
03/06/2003US20030041592 Exhaust gas purifying apparatus for an internal-combustion engine
03/06/2003US20030041591 Exhaust gas purifying apparatus for an internal-combustion engine
03/06/2003US20030041590 An air-fuel ratio feedback control apparatus
03/05/2003EP1288457A2 Temperature control system for humidity sensor
02/2003
02/27/2003WO2003016686A2 Catalytic converter function detection
02/27/2003US20030037538 Catalytic converter function detection
02/26/2003EP1286028A2 Diagnostic system for monitoring catalyst performance
02/26/2003EP1284807A1 Device and method for reduction of a gas component in an exhaust gas flow of a combustion engine
02/25/2003US6524150 Exhaust emission control for watercraft
02/25/2003US6523341 Cold start vehicle catalyst monitor
02/25/2003US6523340 Method and apparatus for diagnosing engine exhaust gas purification system
02/20/2003WO2003014620A1 Method and apparatus for testing catalytic converter durability
02/20/2003CA2454249A1 Method and apparatus for testing catalytic converter durability
02/18/2003US6519930 Method and configuration for monitoring an NOx-storage device
02/13/2003WO2003012272A1 Engine control based on exhaust back pressure
02/13/2003US20030032188 Diagnostic system for monitoring catalyst performance
02/13/2003CA2448215A1 Engine control based on exhaust back pressure
02/06/2003US20030024514 Apparatus for controlling air-fuel ratio of internal combustion engine
01/2003
01/30/2003US20030023368 Method for quantifying oxygen stored in a vehicle emission control device
01/30/2003US20030023367 Engine control based on exhaust back pressure
01/30/2003US20030019485 Air/fuel ratio controller for internal combustion engine
01/30/2003US20030019212 Method and device for operating an electrical supercharger
01/29/2003EP1279815A2 Method and device for operating an electric charger
01/23/2003US20030017603 Catalyst deterioration detecting apparatus and method
01/16/2003US20030011374 Sensor for the monitoring of an NOx catalyst
01/16/2003US20030010016 Method for monitoring and exhaust-gas catalytic converter of an internal combustion engine
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