| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 09/10/1996 | US5553450 Method and apparatus for judging the functioning of a catalytic converter |
| 08/28/1996 | EP0689640B1 Process for checking the conversion capability of a catalyst |
| 08/22/1996 | DE19506012A1 Efficiency test system for vehicle catalytic converter contg. two lambda probes |
| 08/21/1996 | EP0727568A1 Diagnostic apparatus for exhaust gas purification apparatus for internal combustion engine |
| 08/14/1996 | DE19605103A1 Monitoring circuit for catalyst of motor vehicle IC engine |
| 08/13/1996 | US5545377 Control device for processing the output of the air-fuel ratio sensors and generating a signal based on the processed output |
| 08/13/1996 | US5544482 Exhaust gas-purifying system for internal combustion engines |
| 08/13/1996 | US5544481 Engine air/fuel control system and catalytic converter monitoring |
| 08/06/1996 | US5542292 Method and device for monitoring a secondary-air system of a motor vehicle |
| 07/16/1996 | US5535620 Engine management system |
| 07/09/1996 | US5533332 Method and apparatus for self diagnosis of an internal combustion engine |
| 07/03/1996 | EP0719931A1 Exhaust control device of internal combustion engine |
| 07/02/1996 | US5531069 Catalyst deterioration-determining device of an internal combustion engine |
| 06/26/1996 | EP0718493A1 Engine control to achieve rapid catalyst warm-up |
| 06/25/1996 | US5528898 Apparartus for detecting deterioration of catalysts |
| 06/18/1996 | US5526643 System for diagnosing deterioration of catalyst |
| 06/18/1996 | US5526642 Method for monitoring a system for delivering secondary air to the exhaust gas of an internal combustion engine |
| 06/12/1996 | CN1124522A Sensor to determine the gas component concentration in gas mixtures |
| 06/11/1996 | US5524433 Methods and apparatus for monitoring the performance of hydrocarbon engine emission trapping devices |
| 06/05/1996 | EP0715063A2 System to monitor the efficiency on a catalytic converter, in particular for motor vehicules |
| 06/04/1996 | US5522219 Exhaust system with bypass catalytic converter and diagnostics |
| 05/30/1996 | WO1996016257A1 Device for monitoring the operatability of catalytic converters and/or lambda probes |
| 05/28/1996 | US5519992 Exhaust gas purification system for internal combustion engine, and apparatus and method for controlling the same |
| 05/23/1996 | DE4441432A1 Anordnung zur Überwachung der Funktionsfähigkeit von Katalysatoren und/oder Lambda-Sonden Arrangement for monitoring the health of catalysts and / or oxygen sensors |
| 05/21/1996 | US5517848 Exhaust gas purification system for internal combustion engine, and apparatus and method for controlling the same |
| 05/02/1996 | DE4437655A1 Catalyst heater functional effectiveness monitoring method for motor vehicle IC engine exhaust |
| 05/02/1996 | DE19539708A1 Auspuffemissionssteuerungssystem für Verbrennungsmotoren Exhaust emission control system for internal combustion engines |
| 04/30/1996 | US5511413 Used in an exhaust gas system of a diesel engine |
| 04/25/1996 | DE19539024A1 Diagnostic system for catalytic converter damage in combustion engine |
| 04/25/1996 | DE19537798A1 Heater for road vehicle with IC engine |
| 04/23/1996 | US5509267 Automotive vehicle catalyst diagnostic |
| 04/11/1996 | WO1996010685A1 Process for checking a catalyst heating burner system |
| 04/04/1996 | DE19536798A1 Device to determine the redn. in catalytic converter cleaning capacity |
| 04/04/1996 | DE19536252A1 Exhaust gas catalytic converter degradation detection device |
| 03/27/1996 | CN1119464A Process and device for monitoring the operation of a catalytic converter |
| 03/19/1996 | US5499500 Engine air/fuel control system with catalytic converter and exhaust gas oxygen sensor monitoring |
| 03/12/1996 | US5497618 Air/fuel control system with catalytic converter monitoring |
| 03/05/1996 | US5497099 Antenna system for soot detecting |
| 02/28/1996 | EP0698208A1 Sensor to determine the gas component concentration in gas mixtures |
| 02/13/1996 | US5490381 Need-based method of heating a catalyst in the exhaust system of an internal combustion engine |
| 02/06/1996 | US5490064 Control unit for vehicle and total control system therefor |
| 02/01/1996 | DE4426020A1 IC engine exhaust gas catalytic converter effectiveness monitoring |
| 02/01/1996 | DE19527774A1 Vehicle IC engine exhaust catalyst deterioration monitoring system |
| 02/01/1996 | DE19527490A1 Vehicle IC engine exhaust gas emissions cleaning system |
| 01/30/1996 | US5487372 Malfunctional detecting apparatus for an assist air control system for internal combustion engines |
| 01/30/1996 | US5487270 Air-fuel ratio control system for internal combustion engine |
| 01/30/1996 | US5487269 Method for monitoring the efficiency of a catalytic converter for treating exhaust gases from an internal combustion engine |
| 01/23/1996 | US5485826 Air-fuel ratio control device for internal combustion engine |
| 01/18/1996 | WO1996001364A1 System for monitoring the performance of automotive catalysts |
| 01/18/1996 | DE4424811A1 Forming simulated signal relating to temp. in exhaust gas system of motor vehicle |
| 01/16/1996 | US5483795 Exhaust purification device of internal combustion engine |
| 01/11/1996 | WO1996000943A1 Method and apparatus for machine health inference by comparing two like loaded components |
| 01/11/1996 | CA2189331A1 Method and apparatus for machine health inference by comparing two like loaded components |
| 01/03/1996 | EP0690213A1 Exhaust purification device of internal combustion engine |
| 01/03/1996 | EP0689641A1 Process and device for monitoring the operation of a catalytic converter |
| 12/27/1995 | EP0688394A1 Heated catalytic converter efficiency monitoring method |
| 12/12/1995 | US5474746 Catalyst carrier body for exhaust systems of internal combustion engines |
| 12/06/1995 | EP0587836B1 Methods and device for assessing the operatability of a catalytic converter |
| 12/05/1995 | US5473304 Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method |
| 12/05/1995 | US5472580 Catalytic converter diagnostic sensor |
| 10/25/1995 | EP0678660A1 Shutdown device in a gas measuring system at raised water content |
| 10/25/1995 | EP0678154A1 Exhaust filter backpressure indicator. |
| 10/24/1995 | US5459997 Engine exhaust gas purification system |
| 10/12/1995 | DE4435196C1 Burner system efficiency checking method for vehicle exhaust catalytic converter warm=up |
| 10/03/1995 | CA2104573C On-board catalytic converter efficiency monitoring |
| 09/28/1995 | DE4410225A1 IC engine management method |
| 09/21/1995 | WO1995025277A1 Sensor to determine the gas component concentration in gas mixtures |
| 09/21/1995 | DE4408504A1 Sensor zur Bestimmung der Konzentration von Gaskomponenten in Gasgemischen Sensor for determining the concentration of gas components in gas mixtures |
| 09/12/1995 | US5448886 Catalyst deterioration-determining device for an internal combustion engine |
| 09/05/1995 | US5447696 Each on exhaust passages and containing catalyst to remove pollutants ; detectors for parameters relating to temperature rise of catalysts and for collating these; automobile engines |
| 09/05/1995 | US5447031 Wastegate failure detection apparatus and method for operating same |
| 08/29/1995 | US5444977 Air/fuel ratio sensor abnormality detecting device for internal combustion engine |
| 08/29/1995 | US5444975 Method and arrangement for controlling the supply of secondary air for an internal combustion engine |
| 08/29/1995 | US5444974 On-board automotive exhaust catalyst monitoring with a calorimetric sensor |
| 08/23/1995 | EP0668438A1 Catalyst degradation detecting apparatus |
| 08/23/1995 | EP0611415B1 Method for monitoring the efficiency of a catalytic converter for treating exhaust gases from an internal combustion engine |
| 08/22/1995 | US5442911 Exhaust gas aftertreatment equipment for an internal combustion engine |
| 08/16/1995 | EP0667446A1 Method and apparatus for diagnosing engine exhaust gas purification system |
| 08/08/1995 | US5438827 Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic diagnosis apparatus for the same |
| 08/03/1995 | DE19500619A1 Motor exhaust catalyst test |
| 08/01/1995 | US5437154 Misfire-detecting system for internal combustion engines |
| 07/25/1995 | US5435172 Process for testing the operating efficiency of exhaust gas catalysts |
| 07/19/1995 | EP0663516A2 Malfunction monitoring apparatus and method for secondary air supply system of internal combustion engine |
| 07/12/1995 | EP0662608A2 Fault detection system for a vehicle |
| 07/11/1995 | US5431043 Catalyst activity test |
| 07/11/1995 | US5431012 Resistive device comprising electrically insulating substrate with thin electroconductive film; internal combustion engines |
| 07/11/1995 | US5431011 Catalytic converter diagnostic |
| 07/04/1995 | US5428956 Method for monitoring the catalytic activity of a catalytic converter in the exhaust gas system of an internal combustion engine |
| 07/04/1995 | US5428955 Device for controlling heating of catalyst for purifying exhaust gas |
| 06/29/1995 | WO1995017588A1 Method for testing the convertability of a catalytic converter |
| 06/29/1995 | WO1995017587A1 Catalytic converter and process for its manufacture |
| 06/28/1995 | EP0659988A1 Light-off catalyst monitor |
| 06/28/1995 | EP0659987A1 Catalyst monitor for a Y pipe exhaust configuration |
| 06/28/1995 | EP0659986A1 Method to monitor a secondary air system relating to the exhaust gas system of a motor vehicle |
| 06/27/1995 | US5426937 Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same |
| 06/27/1995 | US5426934 Engine and emission monitoring and control system utilizing gas sensors |
| 06/20/1995 | US5425234 Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same |
| 06/15/1995 | WO1995016109A1 Process and device for checking and regulating the air-fuel mixture such as for motor vehicles |
| 06/14/1995 | EP0603222B1 Catalyzer bearing body |
| 06/08/1995 | DE4442734A1 Fuel control system for iC engine |