EP 1740813 B1 20110706 - METHOD FOR DETERMINING THE CLOSING TIME FOR A CLOSING BODY AND CIRCUIT ARRANGEMENT
Title (en)
METHOD FOR DETERMINING THE CLOSING TIME FOR A CLOSING BODY AND CIRCUIT ARRANGEMENT
Title (de)
VERFAHREN ZUM BESTIMMEN EINER SCHLIEßZEIT EINES SCHLIEßGLIEDES UND SCHALTUNGSANORDNUNG
Title (fr)
PROCEDE POUR DETERMINER UN TEMPS DE FERMETURE D'UN ELEMENT DE FERMETURE ET ENSEMBLE CIRCUIT
Publication
Application
Priority
- EP 2005003223 W 20050326
- DE 102004020937 A 20040428
Abstract (en)
[origin: WO2005108765A1] A method for determining the closure time for a valve, operated by a piezoelectric actuator, is disclosed. In order to record the closing time, the voltage at the piezoelectric actuator is recorded and the time is recorded at which the voltage has a maximum difference value from a comparison curve. The difference curve is generated between a start and an end point for a measured curve, comprising the voltage values applied to the piezoelectric actuator. A precise determination of the closing time can thus be carried out.
IPC 8 full level
F02D 41/20 (2006.01); H01L 41/04 (2006.01)
CPC (source: EP US)
F02D 41/2096 (2013.01 - EP US); F02D 2041/2051 (2013.01 - EP US); F02D 2041/2055 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2005108765 A1 20051117; CN 100564847 C 20091202; CN 101010503 A 20070801; DE 102004020937 A1 20051124; DE 102004020937 B4 20100715; EP 1740813 A1 20070110; EP 1740813 B1 20110706; US 2007251492 A1 20071101; US 7413160 B2 20080819
DOCDB simple family (application)
EP 2005003223 W 20050326; CN 200580013377 A 20050326; DE 102004020937 A 20040428; EP 05729139 A 20050326; US 56836705 A 20050326