Global Patent Index - EP 1711704 A1

EP 1711704 A1 20061018 - METHOD FOR MONITORING THE OPERABILITY OF A FUEL INJECTION SYSTEM

Title (en)

METHOD FOR MONITORING THE OPERABILITY OF A FUEL INJECTION SYSTEM

Title (de)

VERFAHREN ZUM ÜBERWACHEN DER FUNKTIONSFÄHIGKEIT EINES KRAFTSTOFFEINSPRITZSYSTEMS

Title (fr)

PROCEDE POUR SURVEILLER LE BON FONCTIONNEMENT D'UN SYSTEME D'INJECTION DE CARBURANT

Publication

EP 1711704 A1 20061018 (DE)

Application

EP 06704233 A 20060120

Priority

  • EP 2006050334 W 20060120
  • DE 102005004423 A 20050131

Abstract (en)

[origin: DE102005004423B3] The method involves measuring pressure over a certain measurement period of one second. Temporal behavior of the pressure is compared with a desired value characteristic for the given operating conditions, during the measurement period. A source of defect is identified based on the difference of the measured temporal behavior of the pressure and the desired value characteristic and when the difference falls below a target pressure.

IPC 8 full level

F02D 41/22 (2006.01); F02D 41/38 (2006.01)

CPC (source: EP US)

F02D 41/22 (2013.01 - EP US); F02D 41/3809 (2013.01 - EP US); F02D 41/3863 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F02M 65/003 (2013.01 - EP US); F02D 2041/224 (2013.01 - EP US); F02D 2041/225 (2013.01 - EP US); F02D 2041/227 (2013.01 - EP US)

Citation (search report)

See references of WO 2006079606A1

Designated contracting state (EPC)

DE FR GB IT

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

DE 102005004423 B3 20060614; CN 100434683 C 20081119; CN 1942663 A 20070404; DE 502006000413 D1 20080417; EP 1711704 A1 20061018; EP 1711704 B1 20080305; EP 1711704 B8 20080423; US 2008109144 A1 20080508; US 7444993 B2 20081104; WO 2006079606 A1 20060803

DOCDB simple family (application)

DE 102005004423 A 20050131; CN 200680000096 A 20060120; DE 502006000413 T 20060120; EP 06704233 A 20060120; EP 2006050334 W 20060120; US 59891707 A 20070912