EP 1573188 A1 20050914 - DEVICE AND METHOD FOR IDENTIFYING DEFECTS IN A FUEL INJECTION SYSTEM
Title (en)
DEVICE AND METHOD FOR IDENTIFYING DEFECTS IN A FUEL INJECTION SYSTEM
Title (de)
VORRICHTUNG UND VERFAHREN ZUM ERKENNEN VON FEHLERN IN EINEM KRAFTSTOFFEINSPRITZSYSTEM
Title (fr)
DISPOSITIF ET PROCEDE POUR LA RECONNAISSANCE DE DEFAUTS DANS UN SYSTEME D'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 0303347 W 20031009
- DE 10259797 A 20021219
Abstract (en)
[origin: WO2004057172A1] The invention makes the identification of defects possible in a fuel injection system comprising a fuel accumulator (12), a continuously operating high-pressure pump (10) and a fuel pressure control valve (14). By evaluating the high-frequency portion of the fuel pressure course in the fuel accumulator (12), it can be indicated with a high probability which of the components are defective, whereby this is assisted, in particular, by additional evaluations performed during a diagnostic method.
IPC 1-7
IPC 8 full level
G01M 99/00 (2011.01); F02D 41/22 (2006.01); F02D 41/38 (2006.01)
CPC (source: EP US)
F02D 41/221 (2013.01 - EP US); F02D 41/3836 (2013.01 - EP US); F02D 2041/1432 (2013.01 - EP US); F02D 2041/224 (2013.01 - EP US); F02D 2200/0602 (2013.01 - EP US)
Citation (search report)
See references of WO 2004057172A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2004057172 A1 20040708; DE 10259797 A1 20040715; DE 50304094 D1 20060810; EP 1573188 A1 20050914; EP 1573188 B1 20060628; US 2006144130 A1 20060706; US 7137294 B2 20061121
DOCDB simple family (application)
DE 0303347 W 20031009; DE 10259797 A 20021219; DE 50304094 T 20031009; EP 03769234 A 20031009; US 53992905 A 20050617