| Patents for F01N 11 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus (7,022) |
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| 07/12/2001 | WO2001049983A2 Method for operating an internal combustion engine in particular in a motor vehicle |
| 07/12/2001 | DE19963938A1 Verfahren zum Betreiben eines Dreiwegekatalysators einer Brennkraftmaschine A method of operating a three-way catalytic converter of an internal combustion engine |
| 07/12/2001 | DE19963936A1 Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs A method of operating an internal combustion engine in particular of a motor vehicle |
| 07/12/2001 | DE19963932A1 Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs A method of operating an internal combustion engine in particular of a motor vehicle |
| 07/12/2001 | DE19963927A1 Verfahren zum Betreiben eines Speicherkatalysators einer Brennkraftmaschine A method for operating a storage catalytic converter of an internal combustion engine |
| 07/12/2001 | DE19963925A1 Verfahren zum Betreiben eines Speicherkatalysators einer Brennkraftmaschine A method for operating a storage catalytic converter of an internal combustion engine |
| 07/12/2001 | DE19963924A1 Verfahren zum Betreiben eines Speicherkatalysators einer Brennkraftmaschine A method for operating a storage catalytic converter of an internal combustion engine |
| 07/12/2001 | DE19963921A1 Verfahren zum Betreiben eines Speicherkatalysators einer Brennkraftmaschine A method for operating a storage catalytic converter of an internal combustion engine |
| 07/12/2001 | DE19963903A1 Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs A method of operating an internal combustion engine in particular of a motor vehicle |
| 07/12/2001 | DE19963902A1 Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs A method of operating an internal combustion engine in particular of a motor vehicle |
| 07/12/2001 | DE19963901A1 Verfahren zum Betreiben eines Katalysators einer Brennkraftmaschine Method for operating a catalytic converter of an internal combustion engine |
| 07/12/2001 | DE10028365A1 Abgasreinigungssystem für einen Motor An exhaust gas purification system for an engine |
| 07/11/2001 | EP1114922A1 Exhaust system monitoring |
| 07/11/2001 | EP1114921A2 Method and system for evaluating exhaust on-board diagnostics systems |
| 07/11/2001 | EP1114920A2 Cold start vehicle catalyst monitor |
| 07/07/2001 | CA2330269A1 Exhaust system monitor |
| 07/05/2001 | DE10062022A1 Vorrichtung zum Erfassen einer Fehlfunktion eines Abgassystems des Motors An apparatus for detecting a malfunction of an exhaust system of the engine |
| 07/05/2001 | DE10061685A1 Equipment for estimating temperature of catalytic converter for IC engine vehicle exhausts based on information on the vehicle operating conditions |
| 07/04/2001 | EP1113156A2 An exhaust purification device of an engine |
| 07/04/2001 | EP1113155A2 An exhaust purification device of an engine |
| 07/04/2001 | EP0760055B1 Apparatus and method for judging deterioration of an oxygen content sensing device for a catalyst device |
| 07/03/2001 | US6253547 Apparatus and method for determining amount of unburned fuel component adsorbed by an adsorbent in an internal combustion engine |
| 07/03/2001 | US6253541 Triple oxygen sensor arrangement |
| 06/28/2001 | WO2001046569A1 Air-fuel ratio controller for internal combustion engines |
| 06/26/2001 | US6250976 Exhaust emission control for watercraft |
| 06/21/2001 | WO2001044629A2 Device and method for determination of exhaust gas and catalyst temperature |
| 06/21/2001 | DE19961164A1 Vorrichtung und Verfahren zur Abgas- und Katalysatortemperaturermittlung Apparatus and method for exhaust and catalyst temperature determination |
| 06/21/2001 | DE19959870A1 Meßanordnung und Verfahren zur Überwachung der Funktionsfähigkeit eines Rußfilters Measuring device and method for monitoring the functioning of a soot filter |
| 06/20/2001 | EP1108124A1 METHOD FOR RECOGNIZING AND MAINTAINING THE OPERATIONAL CAPABILITY OF A NOx STORAGE CATALYTIC CONVERTER |
| 06/13/2001 | EP1106800A1 Method of judging deterioration of emission gas control catalyst device |
| 06/13/2001 | EP1106799A1 Exhaust emission control device of internal combustion engine |
| 06/13/2001 | EP1106797A1 Measuring arrangement and method for monitoring operation of a soot filter |
| 06/12/2001 | US6245134 Apparatus for testing systems designed for NOx reduction in the combustion of carbonaceous fuels |
| 06/12/2001 | US6244045 Method of monitoring efficiency of a catalytic converter and a control system suitable for use in the method |
| 06/07/2001 | US20010002550 Method for checking the dynamic behavior of a measuring sensor in the exhaust tract of an internal combustion engine |
| 06/07/2001 | DE19955947A1 Verfahren zur Überprüfung der katalytischen Aktivität eines Katalysators Method for checking the catalytic activity of a catalyst |
| 06/07/2001 | DE10057082A1 Verfahren zum Altern eines Katalysators A method for aging a catalyst |
| 06/05/2001 | US6242263 Automotive hydrocarbon sensor |
| 05/31/2001 | WO2001038704A1 Emissions diagnostic system |
| 05/31/2001 | WO2001023875A3 METHOD FOR DIAGNOSING THE LEVEL OF DETERIORATION OF AN NOx CATALYST LOCATED IN THE EXHAUST CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 05/31/2001 | DE10055528A1 Determining aging state of NOx storage catalyser involves determining basic storage capacity correction factor depending on time-weighted air ratio and temperature |
| 05/31/2001 | DE10026988A1 Catalyst degradation detector judges degradation based on statistics value obtained from frequency data of each divided area of catalyst |
| 05/29/2001 | US6240340 Control unit for vehicle and total control system therefor |
| 05/23/2001 | EP1101913A2 Method of monitoring the catalytic activity of a catalytic converter |
| 05/23/2001 | DE19954549A1 Verfahren zum Betrieb einer Abgasreinigungsanlage mit Stickoxidadsorber und Beladungssensor Method for operating an emission control system with nitrogen oxide and load sensor |
| 05/23/2001 | DE19953601A1 Verfahren zum Überprüfen eines Abgaskatalysators einer Brennkraftmaschine Method for checking a catalytic converter of an internal combustion engine |
| 05/22/2001 | US6234390 Process for acquiring and/or paying a fee for exhaust pollutants and a motor vehicle with an exhaust pollutant set which operates using this process |
| 05/22/2001 | US6233923 Exhaust emission control device of internal combustion engine |
| 05/17/2001 | WO2001034960A2 Method of monitoring the exhaust catalyst of an internal combustion engine |
| 05/16/2001 | EP1099844A2 Air-fuel ratio control apparatus for internal combustion engine |
| 05/16/2001 | EP1099836A2 Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas |
| 05/15/2001 | US6230487 Method for regenerating a catalytic converter |
| 05/10/2001 | WO2001033059A1 Method for operating an internal combustion engine |
| 05/10/2001 | WO2001033052A1 Method for monitoring a secondary air system associated with the exhaust system of a vehicle |
| 05/10/2001 | DE19952526A1 Verfahren zum Betreiben einer Brennkraftmaschine A method of operating an internal combustion engine |
| 05/10/2001 | DE10027347A1 Abgasemissionssteuerungs/regelungsvorrichtung für einen Verbrennungsmotor Exhaust emission control / control device for an internal combustion engine |
| 05/09/2001 | EP1097299A1 METHOD FOR CHECKING THE EFFICIENCY OF AN NOx ACCUMULATION CATALYST |
| 05/02/2001 | EP1096125A2 Method for controlling the operation of a NOx storage catalytic converter |
| 05/02/2001 | EP1096117A1 A method for the diagnosis of an exhaust gas purification system for an internal combustion engine |
| 04/26/2001 | DE10030064A1 Motorabgasreinigungsvorrichtung Engine exhaust gas purification device |
| 04/25/2001 | CN1065019C Process and device for monitoring operation of catalytic converter |
| 04/24/2001 | US6220017 Exhaust emission control system for internal combustion engine |
| 04/19/2001 | WO2001027447A1 Diagnostic method for an exhaust system of a combustion engine |
| 04/18/2001 | EP1092856A2 Exhaust emission control system for internal combustion engine |
| 04/18/2001 | EP1092086A1 Method for testing the dynamic behavior of a measure sensor in the exhaust system of an internal combustion engine |
| 04/17/2001 | US6216449 Process for evaluating performance deterioration of a nitrogen oxide storage catalyst |
| 04/17/2001 | US6216448 Method of diagnosing an NOX storage catalytic converter during operation of an internal combustion engine |
| 04/05/2001 | WO2001023875A2 METHOD FOR DIAGNOSING THE LEVEL OF DETERIORATION OF AN NOx CATALYST LOCATED IN THE EXHAUST CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 04/05/2001 | DE19952836C1 Monitoring method for secondary air system coupled to automobile engine exhaust system uses evaluation of calculated signal representing secondary air flow mass |
| 04/05/2001 | DE19946628A1 Verfahren zur Diagnose eines Schädigungszustandes eines in einem Abgaskanal einer Verbrennungskraftmaschine angeordneten NOx-Speicherkatalysators A method for diagnosing a damage state of an object arranged in an exhaust passage of an internal combustion engine, the NOx storage catalyst |
| 03/29/2001 | WO2001021951A1 METHOD FOR MONITORING THE FUNCTIONING OF AN NOx SENSOR ARRANGED IN AN EXHAUST GAS CHANNEL OF AN INTERNAL COMBUSTION ENGINE |
| 03/29/2001 | WO2001021942A1 Method and system for monitoring the operating conditions of an internal combustion engine catalytic converters |
| 03/29/2001 | DE19945374A1 Verfahren zur Funktionsüberwachung eines in einem Abgaskanal einer Verbrennungskraftmaschine angeordneten NO¶x¶-Sensors A method for functional monitoring of a arranged in an exhaust passage of an internal combustion engine NO¶x¶ sensor |
| 03/27/2001 | US6205774 Method for detecting flow-reducing changes in an exhaust-gas catalyst body |
| 03/22/2001 | WO2001019499A1 Method for operating an scr catalyst |
| 03/22/2001 | DE19944009A1 Verfahren zum Betrieb eines SCR-Katalysators Method for operating an SCR catalytic converter |
| 03/21/2001 | EP1085179A2 Exhaust control device of internal combustion engine |
| 03/21/2001 | EP1084331A2 Method and device to monitor the functioning of a catalyst in an internal combustion engine |
| 03/20/2001 | US6202406 Method and apparatus for catalyst temperature control |
| 03/15/2001 | WO2001018367A1 Method for operating an internal combustion engine |
| 03/15/2001 | DE19942270A1 Verfahren zum Betreiben einer Brennkraftmaschine A method of operating an internal combustion engine |
| 03/07/2001 | EP1081348A2 Exhaust emission control system for internal combustion engine |
| 03/07/2001 | EP1081346A2 Exhaust emission control device of internal combustion engine |
| 03/06/2001 | US6195986 Method and system for monitoring a catalytic converter |
| 02/21/2001 | EP1077375A1 Method and apparatus for measuring NOx gas concentration |
| 02/20/2001 | US6192324 On-board diagnosis of emissions from catalytic converters |
| 02/15/2001 | DE10027738A1 Engine exhaust emission control device for engine, changes control parameter of air fuel ratio change unit based on comparison result of time detected by NOx release completion time sensor |
| 02/13/2001 | US6185931 Failure detecting system of exhaust purification apparatus |
| 02/07/2001 | EP1074834A1 Method and apparatus for measuring NOx gas concentration |
| 02/07/2001 | EP1074833A1 Method and apparatus for measuring NOx gas concentration |
| 02/06/2001 | US6182445 Exhaust switch-over valve malfunction detection system of internal combustion engine |
| 01/25/2001 | WO2001006223A1 Method for detecting the state of a catalytic converter system |
| 01/25/2001 | DE19931007A1 Process for the determination of the cumulative state of a selective catalytic reactor(SCR) for ammonia storage for the treatment and conversion of nitrogenous fumes(NOx) |
| 01/18/2001 | WO2001004471A1 Method for verifying a catalytic exhaust box of an internal combustion engine |
| 01/18/2001 | DE19932715A1 Verfahren zur Zustandserfassung eines Katalysatorsystems A method for determining the condition of a catalyst system |
| 01/18/2001 | DE19931321A1 Verfahren zum Überprüfen eines Dreiwege-Abgaskatalysators einer Brennkraftmaschine A method for inspecting a three-way exhaust gas catalytic converter of an internal combustion engine |
| 01/18/2001 | DE19931223A1 Verfahren zum Erkennen und Aufrechterhalten der Betriebsbereitschaft eines NOx-Speicherkatalysators A method for detecting and maintaining the operational readiness of a NOx storage catalytic converter |
| 01/16/2001 | US6173569 Catalyst deterioration detecting apparatus for internal combustion engine |
| 01/11/2001 | DE19928559A1 Determining dew point end for controlling vehicle exhaust gas functions involves correcting heat demand value for re-start if actual heat quantity at switch-off less than previous demand value |
| 01/10/2001 | EP1067279A2 Method to detect and maintain the state of a NOX storage catalyst |