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)
12/2003
12/04/2003US20030225507 Exhaust emission control apparatus for internal combustion engine
12/04/2003US20030221419 Method for controlling the temperature of an emission control device
12/04/2003US20030221417 Method for controlling transitions between operating modes of an engine for rapid heating of an emission control device
12/04/2003US20030221416 Method and system for rapid heating of an emission control device
12/04/2003US20030221415 Method for diagnosing an exhaust gas cleaning system of a lambda-controlled internal combustion engine
11/2003
11/26/2003EP1365137A1 Exhaust gas purifier for internal combustion engines
11/26/2003EP1365122A2 Method for evaluating the efficiency of an oxidation catalyst
11/26/2003EP1364111A1 Method and device for detecting a temperature variable
11/26/2003EP1364110A1 Method and device for controlling an internal combustion engine
11/25/2003US6651423 Method for operating a storage catalyst of an internal combustion engine
11/25/2003US6651422 Catalyst efficiency detection and heating method using cyclic fuel control
11/20/2003US20030213234 Emission control system
11/20/2003US20030213233 Air-fuel ratio control system and method for internal combustion engines
11/19/2003CN1457388A Engine exhaust purification device
11/18/2003US6650121 Sensor for the monitoring of an NOx catalyst
11/13/2003US20030212484 Diagnostic apparatus for an engine
11/06/2003WO2003091553A1 Device and method for determining a malfunction in a filter
11/06/2003WO2003091552A1 Method and electronic control unit for diagnosing a catalytic converter
11/05/2003EP0923721B1 MONITORING SENSOR FOR NOx CATALYTIC CONVERTER
11/04/2003US6641303 Temperature control system for humidity sensor
11/04/2003US6640540 Adsorbent state determining apparatus
10/2003
10/30/2003US20030204305 Method and system for inferring exhaust temperature of a variable compression ratio engine
10/28/2003US6637197 Method for controlling a rich/lean combustion mixture in a defined manner
10/28/2003US6637194 Exhaust emission control for engine
10/28/2003US6637191 Method and system for diagnosing a secondary air supply for an internal combustion engine
10/23/2003WO2003087550A1 Method and apparatus for controlling a gas-emitting process and related devices
10/23/2003WO2003086580A1 APPARATUS AND METHOD FOR FILTERING PARTICULATE AND REDUCING NOx EMISSIONS
10/23/2003CA2481774A1 Apparatus and method for filtering particulate and reducing nox emissions
10/15/2003CN1124176C Reducing NOx emissions from an engine by temperature-controlled urea injection
10/14/2003US6631611 Methodology of robust initialization of catalyst for consistent oxygen storage capacity measurement
10/09/2003WO2003083274A1 METHOD OF DECIDING ON CATALYST DETERIORATION AND MEANS FOR DECIDING ON CATALYST DETERIORATION IN NOx PURGING SYSTEM
10/09/2003WO2003083273A1 NOx PURGING SYSTEM AND METHOD OF REACTIVATING DETERIORATED CATALYST THEREIN
10/09/2003WO2003083272A1 Exhaust gas decontamination system and method of controlling the same
10/08/2003EP1247006B1 Method for operating a storage catalyst of an internal combustion engine
10/07/2003US6629409 System and method for determining set point location for oxidant-based engine air/fuel control strategy
10/07/2003US6629408 Exhaust emission control system for internal combustion engine
10/02/2003US20030182994 Method and arrangement for performing an exhaust gas analysis on motor vehicles having an on-board engine control and diagnostic system
09/2003
09/30/2003US6626033 Method for operating an accumulator-type catalytic converter of an internal combustion engine
09/30/2003US6625974 Method for operating an internal combustion engine
09/25/2003US20030182050 Apparatus and method for diagnosis of vehicular system
09/25/2003US20030178303 Circuit arrangement for compensating interference signals in the control loop of a linear lambda probe
09/25/2003US20030177760 Diagnosis of a water adsorber in the exhaust of an internal combustion engine
09/23/2003US6622479 Engine exhaust purification device
09/23/2003US6622478 Engine exhaust purification device
09/23/2003US6622477 Air/fuel ratio controller for internal combustion engine
09/18/2003US20030172645 Method and model for modeling a discharge phase of a nitrous oxide storage catalytic converter
09/17/2003EP1196681B1 Method for controlling a rich/lean combustion mixture in a defined manner
09/16/2003US6622081 Catalyst deterioration detecting apparatus for internal combustion engine
09/16/2003US6619108 Method for identifying the state of an NOx storage catalyst
09/16/2003US6619032 Engine exhaust purification device
09/12/2003WO2003074847A1 Exhaust emission control system, method of calculating pressure loss of filter, and method of manufacturing filter
09/11/2003US20030167757 Method of determining the amount of particulate accumulated in a particulate filter
09/04/2003WO2003072916A1 Control device and control method for internal combustion engine
09/03/2003CN2570474Y Single-cylinder explosion-proof diesel engine automatic protective device
08/2003
08/28/2003US20030159433 Exhaust emission control system for multiple cylinder internal combustion engine
08/27/2003EP1337745A1 Method and device for controlling an exhaust gas aftertreatment system
08/21/2003US20030154709 Abnormality diagnosing apparatus of exhaust gas sensor
08/13/2003EP1228301B1 Method of monitoring the exhaust catalyst of an internal combustion engine
08/13/2003CN1436276A Method and model for modeling elimination phase of nitrogen oxide accumulating catalytic converter
08/07/2003US20030145582 System for controlling particulate filter temperature
08/06/2003EP1333166A1 An On-Board Diagnostic Catalyst Monitoring Method
08/06/2003EP1333165A1 Method of determining the amount of particulate accumulated in a particulate filter
08/06/2003CN1434896A Air-fuel ratio controller for internal combustion engines
08/05/2003US6601383 Emission control apparatus for engine and method for reducing emissions of engine
08/05/2003US6601381 Process for operating an exhaust gas treatment device for a gasoline engine
07/2003
07/31/2003US20030140619 Method of controlling the concentration of nitrogen oxides, hydrocarbons and carbon monoxide in conjunction with the cleansing of emission gases
07/30/2003EP1331374A2 Method and device to diagnose the storing properties of a NOx storage catalyst
07/30/2003EP1331372A2 Method and apparatus for operating a NOx storage catalyst according to exhaust gas norms and for aging diagnosis of the catalyst
07/30/2003EP1331371A1 Exhaust emission control device of internal combustion engine
07/29/2003US6600998 Catalyst deteriorating state detecting apparatus
07/24/2003US20030136118 Engine control apparatus
07/24/2003US20030136114 Method of operating an internal combustion engine in particular in a motor vehicle
07/23/2003EP1329627A2 Method of and apparatus for controlling of a component protection function
07/23/2003EP1329626A2 Engine exhaust gas leakage diagnosis
07/22/2003US6594987 Apparatus for detecting fault in exhaust system of internal combustion engine
07/22/2003US6594986 Oxidant storage capacity estimation
07/22/2003US6594985 Exhaust gas aftertreatment device efficiency estimation
07/17/2003US20030134425 Method for estimating the sulfur content in the fuel of an internal combustion engine
07/17/2003US20030131650 Method for balancing ozone sensors
07/17/2003US20030131587 Engine exhaust gas leak diagnosis
07/17/2003US20030131586 Deterioration determining for an exhaust gas purifier of an internal-combustion engine
07/16/2003EP1327755A2 Deterioration determining system for an exhaust gas purifier of an internal-combustion engine
07/16/2003EP1327138A1 Method and device for the on-board diagnosis of an nox sensor
07/15/2003US6591604 Oxygen storage capacity estimation
07/10/2003US20030126858 Method and device for controlling an exhaust gas aftertreatment system
07/09/2003EP1325218A2 Method and device for diagnosing the storing properties of a nox storage catalyst
07/09/2003CN1114031C Method for monitoring function of NOx sensor arranged in exhaust gas channel of internal combustion engine
07/08/2003US6591167 Control unit for vehicle and total control system therefor
07/08/2003US6588251 Method for checking the dynamic behavior of a measuring sensor in the exhaust tract of an internal combustion engine
07/03/2003US20030121316 Abnormality diagnosing apparatus for vehicle
07/02/2003EP1324037A1 Method for estimating the sulfur content in the fuel of an internal combustion engine
07/02/2003EP1323905A1 Method and Apparatus for Monitoring the Operational State of a Catalytic Converter in the Exhaust System of an Internal Combustion Engine
07/02/2003EP1323904A1 Method for detecting uncontrolled regeneration of a particulate filter in an exhaust line of an internal combustion engine
07/01/2003US6586254 Method and apparatus for accelerated catalyst poisoning and deactivation
06/2003
06/26/2003US20030115854 Exhaust gas purifier for internal combustion engines
06/25/2003EP1320668A1 Method for controlling the operation of a particle filter for internal combustion engine
06/24/2003US6581371 Engine catalyst monitor
06/24/2003US6581370 Failure determination device for humidity sensor and control system for exhaust passage changeover valve
06/18/2003CN1111641C Exhaust purifier of IC engine
06/11/2003CN1111252C Engine exhaust purifying device
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