PROCEDE DE CONTROLE DU FONCTIONNEMENT D'UN SYSTEME DE POST-TRAITEMENT DES GAZ D'ECHAPPEMENT D'UN MOTEUR ET VEHICULE ADAPTE POUR LA MISE EN ŒUVRE DU PROCEDE

The method involves estimating balance pressure at the level of a pressure sensor (20) based on external temperature, where the sensor is placed between a reagent tank (16) and a dosing unit (18) i.e. electrovalve, that injects reagent in exhaust gas in open position of an exhaust gas post-treatment...

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Bibliographische Detailangaben
Hauptverfasser:	GRISE CLEMENT, MASSOT GUILLAUME
Format:	Patent
Sprache:	fre
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The method involves estimating balance pressure at the level of a pressure sensor (20) based on external temperature, where the sensor is placed between a reagent tank (16) and a dosing unit (18) i.e. electrovalve, that injects reagent in exhaust gas in open position of an exhaust gas post-treatment system (10) i.e. selective catalytic reduction (SCR) system, of a vehicle. Pressure measured by the sensor is compared with the estimated balance pressure and with external pressure. An independent claim is also included for a vehicle comprising an exhaust gas post-treatment system.