Global Patent Index - EP 0953754 B1

EP 0953754 B1 20031119 - Process of cancellation of the variations of richness of the gas mixture exhausted out of the cylinders of an internal combustion engine

Title (en)

Process of cancellation of the variations of richness of the gas mixture exhausted out of the cylinders of an internal combustion engine

Title (de)

Prozess zur Annullierung der Variationen des Reichtums der Gasmischung, die aus den Zylindern eines Verbrennungsmotors einer Maschine heraus fliesst

Title (fr)

Procédé d'annulation des variations de richesse du mélange gazeux issu des cylindres d'un moteur à combustion interne

Publication

EP 0953754 B1 20031119 (FR)

Application

EP 99400985 A 19990422

Priority

FR 9805507 A 19980430

Abstract (en)

[origin: EP0953754A1] The four cylinders (101-4) send exhaust to a collector (12) which introduces a delay (14) before arrival at a proportional probe (16) which sends a richness signal y(t) to a synchronization unit (20) where a new signal y(k), correcting the delay in the collector is produced. A regulating unit (22) uses the corrected signal y(k) and a disturbance model representing anticipated variations between cylinders to generate an injector signal annulling the variations

IPC 1-7

F02D 41/14; F02D 41/34

IPC 8 full level

F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02D 41/34 (2006.01)

CPC (source: EP)

F02D 41/008 (2013.01); F02D 41/1401 (2013.01); F02D 41/0085 (2013.01); F02D 2041/1431 (2013.01); F02D 2041/1433 (2013.01)

Citation (examination)

EP 0330934 A2 19890906 - HITACHI LTD [JP]

Designated contracting state (EPC)

DE ES GB IT

DOCDB simple family (publication)

EP 0953754 A1 19991103; EP 0953754 B1 20031119; DE 69912875 D1 20031224; DE 69912875 T2 20041111; FR 2778210 A1 19991105; FR 2778210 B1 20001215

DOCDB simple family (application)

EP 99400985 A 19990422; DE 69912875 T 19990422; FR 9805507 A 19980430