EP 1526269 B1 20120613 - Method and device for monitoring a fuel pressure sensor
Title (en)
Method and device for monitoring a fuel pressure sensor
Title (de)
Verfahren und Vorrichtung zum Überwachen eines Kraftstoffdrucksensors
Title (fr)
Méthode et dispositif de surveillance d'un capteur de pression de carburant
Publication
Application
Priority
DE 10348610 A 20031020
Abstract (en)
[origin: EP1526269A2] The fuel pressure sensor (58) is located in a fuel accumulator (55) of an engine with fuel pumps (51,54) and injection valves (34). A temporary change in the fuel pressure determined by the sensor is compared to a temporary change in an estimated fuel pressure, and a sensor error is recognized dependent upon the comparison. The change in the estimated pressure is calculated dependent upon a fuel volume supplied by the injection valves, and a fuel volume supplied by the pump into the tank. The comparison is carried out only, when the change in actual fuel pressure exceeds a set value.
IPC 8 full level
F02D 41/38 (2006.01); F02D 41/22 (2006.01)
CPC (source: EP)
F02D 41/222 (2013.01); F02D 41/3836 (2013.01); F02D 41/3845 (2013.01); F02D 2041/223 (2013.01); F02D 2200/0604 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1526269 A2 20050427; EP 1526269 A3 20060906; EP 1526269 B1 20120613; DE 10348610 A1 20050525; DE 10348610 B4 20090709
DOCDB simple family (application)
EP 04104594 A 20040922; DE 10348610 A 20031020