Global Patent Index - EP 1611334 B1

EP 1611334 B1 20080514 - METHOD FOR OPERATING AN AUTOMATICALLY IGNITING INTERNAL COMBUSTION ENGINE

Title (en)

METHOD FOR OPERATING AN AUTOMATICALLY IGNITING INTERNAL COMBUSTION ENGINE

Title (de)

VERFAHREN ZUM BETRIEB EINER BRENNKRAFTMASCHINE MIT SELBSTZÜNDUNG

Title (fr)

PROCEDE POUR FAIRE FONCTIONNER UN MOTEUR A COMBUSTION INTERNE A AUTO-ALLUMAGE

Publication

EP 1611334 B1 20080514 (DE)

Application

EP 04711992 A 20040218

Priority

  • EP 2004001518 W 20040218
  • DE 10316112 A 20030409

Abstract (en)

[origin: WO2004090311A1] The invention relates to a method for operating an automatically igniting internal combustion engine wherein an average gas temperature in the cylinder is determined during combustion in the combustion chamber in such a manner that a gradient of the average gas temperature is calculated. As a result, a nitrogen oxide raw emission of the internal combustion engine is determined from either a value of the gradient of the average gas temperature and/or from a maximum value of the average gas temperature in the cylinder. Subsequently, the motor parameters are adjusted in such a manner that an average gas temperature gradient, wherein less NOx-emissions are formed, is produced during combustion.

IPC 8 full level

F02D 35/02 (2006.01); F02D 21/08 (2006.01); F02D 41/14 (2006.01); F02D 43/00 (2006.01)

CPC (source: EP US)

F02D 35/025 (2013.01 - EP US); F02D 35/028 (2013.01 - EP US); F02D 41/1446 (2013.01 - EP US); F02D 41/1462 (2013.01 - EP US); F02D 35/023 (2013.01 - EP US); F02D 2250/36 (2013.01 - EP US)

Designated contracting state (EPC)

FR GB IT

DOCDB simple family (publication)

WO 2004090311 A1 20041021; DE 10316112 A1 20041028; EP 1611334 A1 20060104; EP 1611334 B1 20080514; JP 2006522888 A 20061005; US 2007157599 A1 20070712

DOCDB simple family (application)

EP 2004001518 W 20040218; DE 10316112 A 20030409; EP 04711992 A 20040218; JP 2006504431 A 20040218; US 55214004 A 20040218