EP 2530288 A2 20121205 - Activation determining system for oxygen sensor
Title (en)
Activation determining system for oxygen sensor
Title (de)
Aktivierungsbestimmungssystem für einen Sauerstoffsensor
Title (fr)
Système de détermination de l'activation pour capteur d'oxygène
Publication
Application
Priority
JP 2011122679 A 20110531
Abstract (en)
In an activation determining system, a signal processing circuit is configured to output a signal converging to a predetermined convergence value VP when the oxygen sensor is maintained in the deactivated state. A deactivation determining section is configured to determine that the oxygen sensor is in the deactivated state when an output value Vd (n) from the signal processing circuit varies towards the convergence value VP for a predetermined period of time or longer during execution of fuel supply cut-off or when the output value Vd(n) varies towards the convergence value VP by a predetermined amount or greater during execution of the fuel supply cut-off.
IPC 8 full level
F02D 41/12 (2006.01); F02D 41/14 (2006.01); F02D 41/28 (2006.01)
CPC (source: EP)
F02D 41/1486 (2013.01); F02D 41/123 (2013.01); F02D 41/1454 (2013.01); F02D 41/1456 (2013.01); F02D 2041/281 (2013.01)
Citation (applicant)
JP 2006170938 A 20060629 - HONDA MOTOR CO LTD
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2530288 A2 20121205; EP 2530288 A3 20141029; EP 2530288 B1 20151216; ES 2557603 T3 20160127; JP 2012251795 A 20121220; TW 201248142 A 20121201; TW I458971 B 20141101
DOCDB simple family (application)
EP 11185695 A 20111019; ES 11185695 T 20111019; JP 2011122679 A 20110531; TW 100142972 A 20111123