EP 2396835 A1 20111221 - METHOD FOR DETERMINING A NEEDLE CLOSING IN A PIEZO INJECTOR
Title (en)
METHOD FOR DETERMINING A NEEDLE CLOSING IN A PIEZO INJECTOR
Title (de)
VERFAHREN ZUM BESTIMMEN EINES NADELSCHLIESSENS BEI EINEM PIEZOINJEKTOR
Title (fr)
PROCÉDÉ DE DÉTERMINATION D'UNE FERMETURE DE POINTEAU POUR UN INJECTEUR PIÉZOÉLECTRIQUE
Publication
Application
Priority
- EP 2010050030 W 20100105
- DE 102009000741 A 20090210
Abstract (en)
[origin: WO2010091902A1] The invention relates to a method for determining a needle closing of a valve needle (88) that is activated by a piezo actuator, wherein a signal of a voltage on the piezo actuator is measured and the needle closing is verified from a gradient (56, 58, 60, 62) of the signal. In addition, the invention relates to an assembly for determining a needle closing, to a computer program and to a computer program product.
IPC 8 full level
H01L 41/113 (2006.01); F02D 41/20 (2006.01); F02M 51/06 (2006.01); H01L 41/04 (2006.01)
CPC (source: CN EP KR US)
F02D 41/2096 (2013.01 - EP KR US); F02M 51/0603 (2013.01 - KR); F02M 63/0026 (2013.01 - KR); F02M 65/005 (2013.01 - EP KR US); H10N 30/30 (2023.02 - CN); H10N 30/802 (2023.02 - CN); F02D 2041/1432 (2013.01 - EP KR US); F02D 2041/2051 (2013.01 - EP KR US); F02D 2041/2055 (2013.01 - EP KR US); F02D 2200/025 (2013.01 - EP KR US); F02D 2200/063 (2013.01 - EP KR US); F02M 51/0603 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US)
Citation (search report)
See references of WO 2010091902A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009000741 A1 20100812; CN 102308403 A 20120104; CN 105514259 A 20160420; EP 2396835 A1 20111221; JP 2012517556 A 20120802; JP 5362039 B2 20131211; KR 20110124226 A 20111116; US 2012013325 A1 20120119; WO 2010091902 A1 20100819
DOCDB simple family (application)
DE 102009000741 A 20090210; CN 201080007108 A 20100105; CN 201610042493 A 20100105; EP 10700825 A 20100105; EP 2010050030 W 20100105; JP 2011549496 A 20100105; KR 20117018540 A 20100105; US 201013147757 A 20100105