EP 0848151 B1 20040128 - Method of closed loop control of the air/fuel ratio of an internal combustion engine
Title (en)
Method of closed loop control of the air/fuel ratio of an internal combustion engine
Title (de)
Verfahren zur Regelung des Kraftstoff-Luft-Verhältnisses einer Brennkraftmaschine
Title (fr)
Méthode de commande rétroactive du rapport air/carburant d'un moteur à combustion intern
Publication
Application
Priority
DE 19651613 A 19961212
Abstract (en)
[origin: EP0848151A2] The air/fuel ratio regulation method uses a regulator with a proportional-integral regulation characteristic, receiving a signal from a lambda probe (5) which is inserted in the engine exhaust line upstream of a catalyser (2), providing a setting value for the fuel/air ratio. The proportional component of the output signal from the first regulation circuit (9) for the first lambda probe is altered in dependence on the output signal from a second lambda probe (6) inserted in the exhaust gas line after the catalyser.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01)
CPC (source: EP)
F02D 41/1441 (2013.01); F02D 41/1483 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0848151 A2 19980617; EP 0848151 A3 19990512; EP 0848151 B1 20040128; DE 19651613 C1 19980806; DE 59711258 D1 20040304
DOCDB simple family (application)
EP 97120602 A 19971125; DE 19651613 A 19961212; DE 59711258 T 19971125