PROCEDE ET DISPOSITIF DE DIAGNOSTIC DE L'ETAT DE FONCTIONNEMENT D'UNE VANNE DE RECIRCULATION DE GAZ D'ECHAPPEMENT D'UN MOTEUR A COMBUSTION INTERNE

摘要

The method includes acquiring a measurement value of a reference position of the recycling valve (24) at a predetermined time corresponding to a normally closed position of the valve, calculating the difference between the acquired reference value and a reference value acquired during the diagnostic cycle previously carried out and comparing the calculated difference with a threshold value for detecting opening of the valve.