EP 1581734 B1 20080326 - METHOD AND DEVICE FOR DIAGNOSING THE DYNAMIC CHARACTERISTICS OF A LAMBDA PROBE, USED FOR THE LAMBDA REGULATION OF INDIVIDUAL CYLINDERS
Title (en)
METHOD AND DEVICE FOR DIAGNOSING THE DYNAMIC CHARACTERISTICS OF A LAMBDA PROBE, USED FOR THE LAMBDA REGULATION OF INDIVIDUAL CYLINDERS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE DER DYNAMISCHEN EIGENSCHAFTEN EINER ZUR ZYLINDERINDIVIDUELLEN LAMBDAREGELUNG VERWENDETEN LAMBDASONDE
Title (fr)
PROCEDE ET DISPOSITIF DE DIAGNOSTIC DES PROPRIETES DYNAMIQUES D'UNE SONDE LAMBDA SERVANT A LA REGULATION LAMBDA PAR CYLINDRES INDIVIDUELS
Publication
Application
Priority
- DE 0304250 W 20031219
- DE 10260721 A 20021223
Abstract (en)
[origin: WO2004059152A1] The invention relates to a method for diagnosing the dynamic characteristics of a lambda probe, used at least occasionally for the lambda regulation of individual cylinders. Said method is characterised in that at least one control variable for lambda regulation is detected and compared with a predefinable maximum threshold and if said threshold is exceeded the dynamic behaviour of the lambda probe is rated as unsatisfactory in terms of its operational integrity for the lambda regulation of individual cylinders.
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/00 (2006.01); F02D 41/34 (2006.01)
CPC (source: EP US)
F02D 41/008 (2013.01 - EP US); F02D 41/1495 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 2004059152 A1 20040715; CN 100449130 C 20090107; CN 1692218 A 20051102; DE 10260721 A1 20040729; DE 50309504 D1 20080508; EP 1581734 A1 20051005; EP 1581734 B1 20080326; JP 2006511752 A 20060406; JP 4369872 B2 20091125; US 2006170538 A1 20060803; US 7481104 B2 20090127
DOCDB simple family (application)
DE 0304250 W 20031219; CN 200380100420 A 20031219; DE 10260721 A 20021223; DE 50309504 T 20031219; EP 03799439 A 20031219; JP 2004562496 A 20031219; US 54065103 A 20031219