EP 1639253 A1 20060329 - METHOD FOR MONITORING THE EXHAUST GAS RECIRCULATION OF A COMBUSTION ENGINE
Title (en)
METHOD FOR MONITORING THE EXHAUST GAS RECIRCULATION OF A COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR ÜBERWACHUNG DER ABGASRÜCKFÜHRUNG EINER BRENNKRAFTMASCHINE
Title (fr)
PROCEDE DE CONTROLE DU RECYCLAGE DES GAZ D'ECHAPPEMENT D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 2004001267 W 20040618
- DE 10327691 A 20030620
Abstract (en)
[origin: WO2004113710A1] The invention relates to a method for monitoring the exhaust gas recirculation (AGR) of a combustion engine by detecting pressure, during which exhaust gas is supplied from an outlet side of a combustion chamber arrangement via an exhaust gas recirculation channel (ARK) to an inlet side of the combustion chamber arrangement. The aim of the invention is to achieve a reliable monitoring of exhaust gas recirculation that involves a relatively low level of complexity. To this end: a pressure course is detected in at least one combustion chamber (ZYL1 ... ZYLn), and from this, a thermodynamic characteristic quantity serving as an actual value is determined; a set value of the characteristic quantity is prepared that takes the actual operating point of the combustion engine into account, and a difference between the set value and actual value is determined, and; on the basis of this difference, an item of information is obtained that concerns the actual state of the exhaust gas recirculation compared to the normal state thereof.
IPC 1-7
IPC 8 full level
F02D 21/08 (2006.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01); G01M 99/00 (2011.01); F02D 35/02 (2006.01)
CPC (source: EP US)
F02D 35/023 (2013.01 - EP US); F02D 35/028 (2013.01 - EP US); F02D 41/0052 (2013.01 - EP US); F02M 26/49 (2016.02 - EP US); Y02T 10/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2004113710A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 2004113710 A1 20041229; DE 10327691 A1 20050105; EP 1639253 A1 20060329; JP 2006509966 A 20060323; US 2007272211 A1 20071129
DOCDB simple family (application)
DE 2004001267 W 20040618; DE 10327691 A 20030620; EP 04738717 A 20040618; JP 2005518187 A 20040618; US 56163604 A 20040618