Global Patent Index - EP 2151555 A1

EP 2151555 A1 20100210 - Catalyst deterioration determination device and method

Title (en)

Catalyst deterioration determination device and method

Title (de)

Vorrichtung und Verfahren zur Bestimmung der Alterung eines Katalysators

Title (fr)

Dispositif et procédé pour la détermination de la détérioration d'un catalyseur

Publication

EP 2151555 A1 20100210 (EN)

Application

EP 09166370 A 20090724

Priority

  • JP 2008201475 A 20080805
  • JP 2009074631 A 20090325

Abstract (en)

A catalyst deterioration determination device determines whether or not a catalyst which purifies exhaust gases exhausted from an internal combustion engine is deteriorated based on the capacity of the catalyst for purifying exhaust gases. If it is determined that the catalyst is deteriorated, first sulfur elimination control is executed for eliminating sulfur content accumulated in the catalyst. Further, when the first sulfur elimination control is terminated, the deterioration determination of the catalyst is executed. Then, when it is determined by the deterioration determination that the catalyst is not deteriorated, it is determined that the fuel is high-sulfur fuel containing lots of sulfur content.

IPC 8 full level

F01N 3/08 (2006.01)

CPC (source: EP US)

F01N 3/0842 (2013.01 - EP US); F01N 3/0871 (2013.01 - EP US); F01N 3/0885 (2013.01 - EP US)

Citation (applicant)

JP 2002195089 A 20020710 - DENSO CORP

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2151555 A1 20100210; EP 2151555 B1 20100915; AT E481557 T1 20101015; DE 602009000187 D1 20101028; JP 2010059957 A 20100318; JP 4688941 B2 20110525; US 2010031632 A1 20100211

DOCDB simple family (application)

EP 09166370 A 20090724; AT 09166370 T 20090724; DE 602009000187 T 20090724; JP 2009074631 A 20090325; US 51261409 A 20090730