Brevet : EP1478831 - DISPOSITIF ET PROCEDE DE COMMANDE POUR MOTEUR A COMBUSTION INTERNE
Titre
DISPOSITIF ET PROCEDE DE COMMANDE POUR MOTEUR A COMBUSTION INTERNE
N° et date de publication de la demande
EP1478831 - 24/11/2004
Type de la demande
A1
N° et date de dépôt
EP03702940.2 - 25/02/2003
N° et date de priorité
JP2002049533 - 26/02/2002
Classification CIB
Classification CPC
F01N 3/0814 ; F01N 3/0842 ; F01N 11/007 ; F01N2550/05 ; F01N2610/03 ; F01N2900/0422 ; Y02T 10/40 ; F01N 11/007 ; F01N2550/05 ; F01N 3/0842 ; F01N 3/0814 ; F01N2610/03 ; F01N2900/0422 ; Y02T 10/40
Famille de brevets
EP1478831A1 ; US2004177605A1 ; WO03072916A1 ; DE60309134T2 ; ES2272940T3 ; PL365348A1 ; JP2003254048A ; ATE343052T1
Abrégé
If the amount of fuel added to exhaust gas becomes excessive as a result of an abnormality of an addition agent supply unit ( 60 ), the air-fuel ratio of exhaust as decreases. If an exhaust gas air-fuel ratio obtained from a value output from an A/F sensor ( 4 ) remains equal to or smaller than a predetermined value for a predetermined period, an ECU ( 2 ) determines that an addition agent supply unit ( 60 ) is abnormal. Upon detection of an abnormality of the addition agent supply unit ( 60 ), the ECU ( 2 ) incrteases an amount of EGR gas recirculated to the intake side by an EGR unit ( 40 ), reduces an amount of fuel injection from injectors ( 11 ), and restricts an operational state of an engine body ( 10 ) to a low-speed/low-load state. Also, the ECU ( 2 ) turns a warning lamp ( 7 ) on, warns a driver of the abnormality of the addition agent supply unit ( 60 ), and makes it possible to pull a vehicle over safely.
INTERVENANTS
Déposant
DENSO CORP (DENSO CORPORATION) - JP
TOYOTA MOTOR CO LTD (TOYOTA JIDOSHA KABUSHIKI KAISHA) - JP
Titulaire
DENSO CORPORATION
Inventeur
KOJIMA DAISUKE (KOJIMA, DAISUKE) - JP
KINUGAWA MASUMI (KINUGAWA, MASUMI) - JP
SEKIGUTI KIYONORI (SEKIGUTI, KIYONORI) - JP
KARIYA YASUHIRO (KARIYA, YASUHIRO) - JP
SUGIYAMA TATSUMASA (SUGIYAMA, TATSUMASA) - JP
Mandataire
NOVAGRAAF BREVETS - BATIMENT O2 2 RUE SARAH BERNHARDT CS90017 - 92665 ASNIERES SUR SEINE CEDEX - FR - N° Siren : 389361395
STATUT EN FRANCE : Dossier déchu définitivement
Délivrance
18/10/2006
Remise de traduction du brevet
13/04/2007 (BOPI 2007-15)
Date de constatation de déchéance
-
31/10/2013 (BOPI 2013-47)
Dernière annuité payée
09/02/2012
Quantième- N° de l'annuité payée
10