Global Patent Index - EP 1492947 A1

EP 1492947 A1 20050105 - METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Title (en)

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Title (de)

VERFAHREN ZUM BETRIEB EINER BRENNKRAFTMASCHINE

Title (fr)

MODE DE FONCTIONNEMENT D'UN MOTEUR A COMBUSTION INTERNE

Publication

EP 1492947 A1 20050105 (DE)

Application

EP 03712026 A 20030315

Priority

  • DE 10215674 A 20020410
  • EP 0302728 W 20030315

Abstract (en)

[origin: WO03085244A1] The invention relates to a method for operating an internal combustion engine comprising a compression ignition, according to which a quantity of exhaust gas which is retained in the combustion chamber is regulated according to the operating point by varying valve control times. An ion current signal is measured by means of an ion current sensor which is disposed inside the combustion chamber. The position of the 50-percent mass conversion point of the on-going combustion is detected from the course of the ion current signal so as to be able to control the combustion process during a subsequent cycle by adjusting the operating parameters.

IPC 1-7

F02D 41/14; F02D 35/02; F02P 17/12

IPC 8 full level

F02B 1/12 (2006.01); F02D 13/02 (2006.01); F02D 35/02 (2006.01); F02D 41/14 (2006.01); F02D 41/30 (2006.01); F02P 17/12 (2006.01)

CPC (source: EP)

F02B 1/12 (2013.01); F02D 13/0207 (2013.01); F02D 13/0253 (2013.01); F02D 35/021 (2013.01); F02D 35/028 (2013.01); F02D 41/0052 (2013.01); F02D 41/006 (2013.01); F02D 41/3035 (2013.01); F02D 2041/001 (2013.01); F02D 2041/389 (2013.01); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01)

Citation (search report)

See references of WO 03085244A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03085244 A1 20031016; DE 10215674 A1 20031030; EP 1492947 A1 20050105

DOCDB simple family (application)

EP 0302728 W 20030315; DE 10215674 A 20020410; EP 03712026 A 20030315