EP 1371836 B1 20091021 - Fuel supply control system for internal combustion engine
Title (en)
Fuel supply control system for internal combustion engine
Title (de)
System für die Kraftstoffzufuhr in einer Brennkraftmaschine
Title (fr)
Système de commande d'alimentation en carburant de moteur à explosion interne
Publication
Application
Priority
- JP 2002169008 A 20020610
- JP 2003134554 A 20030513
Abstract (en)
[origin: EP1371836A2] A fuel supply control system is arranged to execute a first diagnosis based on the a fuel injection quantity (Qi) and a fuel pump discharge quantity (Q) after a feedback control of a fuel pressure (p) is started, to execute a second diagnosis when a result of the first diagnosis is NG or when the fuel pump discharge quantity (Q) approximately takes one of a maximum quantity (MAX) or minimum quantity (MIN) of the fuel pump discharge quantity, and to make a NG decision in the second diagnosis when a condition of a magnitude of a difference (Pcal) between a target fuel pressure (Pt) and an actual fuel pressure (P) is greater than a predetermined pressure is maintained for a predetermined time period (T).
IPC 8 full level
F02D 41/06 (2006.01); F02D 45/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); F02D 41/38 (2006.01); F02M 51/00 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP)
F02D 41/221 (2013.01); F02D 41/3845 (2013.01); F02M 63/0225 (2013.01); F02D 2041/224 (2013.01); F02D 2041/389 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/18 (2013.01); F02D 2250/31 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1371836 A2 20031217; EP 1371836 A3 20060517; EP 1371836 B1 20091021; DE 60329733 D1 20091203; JP 2004068810 A 20040304; JP 4222097 B2 20090212
DOCDB simple family (application)
EP 03013060 A 20030610; DE 60329733 T 20030610; JP 2003134554 A 20030513