EP 2013464 B1 20091223 - METHOD FOR ADJUSTING THE AIR/FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR ADJUSTING THE AIR/FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUM EINSTELLEN DES LUFT-/KRAFTSTOFFVERHÄLTNISSES EINES VERBRENNUNGSMOTORS
Title (fr)
PROCÉDÉ POUR RÉGLER LE RAPPORT AIR-CARBURANT D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 2007000546 W 20070324
- DE 102006017863 A 20060418
- DE 102006049348 A 20061019
- DE 102006049350 A 20061019
Abstract (en)
[origin: US7706959B2] A method is for adjusting a fuel/air ratio by means of an on-off controller as well as a diagnostic method in which a desired fuel/air mixture is regulated in accordance with a test signal of a lambda probe that is embodied as a jump probe. The switching point of the on-off controller is moved/adapted while the oscillation of the test signal of the lambda probe is analyzed regarding the amplitude and/or the asymmetry of the oscillation around the switching point at a constant control stroke. A desired value for the asymmetry or the amplitude of the oscillation of the test signal of the lambda probe around the respective switching point is predefined, the switching point of the on-off controller being moved such that the desired value is reached.
IPC 8 full level
F02D 41/14 (2006.01)
CPC (source: EP US)
F02D 41/1454 (2013.01 - EP US); F02D 41/1476 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007118444 A1 20071025; AT E453043 T1 20100115; DE 502007002425 D1 20100204; EP 2013464 A1 20090114; EP 2013464 B1 20091223; US 2009138182 A1 20090528; US 7706959 B2 20100427
DOCDB simple family (application)
DE 2007000546 W 20070324; AT 07722105 T 20070324; DE 502007002425 T 20070324; EP 07722105 A 20070324; US 92229007 A 20070324