EP 2102474 A1 20090923 - METHOD FOR OPERATING A FUEL INJECTION VALVE
Title (en)
METHOD FOR OPERATING A FUEL INJECTION VALVE
Title (de)
VERFAHREN ZUM BETREIBEN EINES KRAFTSTOFFEINSPRITZVENTILS
Title (fr)
PROCÉDÉ DE FONCTIONNEMENT D'UNE SOUPAPE D'INJECTION DE CARBURANT
Publication
Application
Priority
- EP 2007062730 W 20071123
- DE 102006058742 A 20061212
Abstract (en)
[origin: WO2008071532A1] The invention relates to a method for operating a fuel injection valve (10), particularly of an internal combustion engine of a motor vehicle, wherein the fuel injection valve (10) comprises a piezoelectric actuator (12) for actuating a valve needle (13), which is preferably hydraulically coupled to the actuator (12). The control voltage (U) of the piezoelectric actuator (12) is evaluated in order to determine an operating state of the fuel injection valve (10). According to the invention, the second temporal derivation of the control voltage (U) and/or a value (ddu) dependant on the second temporal derivation of the control voltage (U) is evaluated.
IPC 8 full level
F02D 41/20 (2006.01)
CPC (source: EP US)
F02D 41/2096 (2013.01 - EP US); F02M 51/0603 (2013.01 - EP US)
Citation (search report)
See references of WO 2008071532A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102006058742 A1 20080619; CN 101558227 A 20091014; CN 101558227 B 20131023; EP 2102474 A1 20090923; JP 2010512486 A 20100422; JP 5039147 B2 20121003; US 2011180046 A1 20110728; US 8483933 B2 20130709; WO 2008071532 A1 20080619
DOCDB simple family (application)
DE 102006058742 A 20061212; CN 200780045742 A 20071123; EP 07847294 A 20071123; EP 2007062730 W 20071123; JP 2009540696 A 20071123; US 30452907 A 20071123