EP 0925433 B1 20010516 - AIR/FUEL MIXTURE CONTROL IN AN INTERNAL COMBUSTION ENGINE
Title (en)
AIR/FUEL MIXTURE CONTROL IN AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR REGELUNG DES KRAFTSTOFF-LUFT-VERHÄLTNISSES EINER BRENNKRAFTMASCHINE
Title (fr)
SYSTEME DE REGLAGE DU MELANGE AIR/CARBURANT DANS UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 19636465 A 19960907
- EP 9703166 W 19970618
Abstract (en)
[origin: WO9810183A1] The present invention relates to a method of controlling the air/fuel mixture in an internal combustion engine, wherein the output signal from a first Lambda probe located in the exhaust pipe upstream of a catalyst is carried to a controlling device which transmits a response output about the air/fuel mixture and then receives a correcting signal based on the output signal from the second Lambda probe situated downstream of the catalyst. In order to achieve such an accurate and adaptive control as to improve the air/fuel mixture in the sense of reducing gas emissions, the correcting signal is weighted in relation to the length of period of the output signal from the first Lambda probe.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01)
CPC (source: EP US)
F02D 41/1441 (2013.01 - EP US); F02D 41/1474 (2013.01 - EP US); F02D 41/1487 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9810183 A1 19980312; BR 9713196 A 19991103; DE 19636465 C1 19980430; DE 59703562 D1 20010621; EP 0925433 A1 19990630; EP 0925433 B1 20010516; US 6209314 B1 20010403
DOCDB simple family (application)
EP 9703166 W 19970618; BR 9713196 A 19970618; DE 19636465 A 19960907; DE 59703562 T 19970618; EP 97928228 A 19970618; US 25405399 A 19990226