EP 1860307 B1 20111012 - Method of controlling a piezoelectric actuator
Title (en)
Method of controlling a piezoelectric actuator
Title (de)
Verfahren zur Steuerung eines piezoelektrischen Aktuators
Title (fr)
Méthode de contrôle d'un actionneur piézoélectrique
Publication
Application
Priority
GB 0610225 A 20060523
Abstract (en)
[origin: EP1860307A1] A method for controlling the displacement of a stack (2) of a piezoelectric actuator (1) for use in a fuel injector comprises determining a desirable amount of charge (”Q) to be added or removed from the stack (2). The method further comprises selecting a drive current level (PO, SO) and a drive time (t open , t close ) in accordance with the desired amount of charge (”Q) and an operating parameter, and driving the drive current through the stack (2) for the drive time (t open , t close ) in order to add or remove the desired amount of charge (”Q).
IPC 8 full level
F02D 41/20 (2006.01)
CPC (source: EP)
F02D 41/2096 (2013.01); F02D 2041/2058 (2013.01); F02D 2200/0602 (2013.01)
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1860307 A1 20071128; EP 1860307 B1 20111012; AT E528496 T1 20111015; GB 0610225 D0 20060705; JP 2011001963 A 20110106; JP 5259672 B2 20130807
DOCDB simple family (application)
EP 06254039 A 20060801; AT 06254039 T 20060801; GB 0610225 A 20060523; JP 2010227334 A 20101007