EP 1718854 A1 20061108 - METHOD AND DEVICE FOR DETERMINING THE CHARGING FLANKS OF A PIEZOELECTRIC ACTUATOR
Title (en)
METHOD AND DEVICE FOR DETERMINING THE CHARGING FLANKS OF A PIEZOELECTRIC ACTUATOR
Title (de)
VERFAHREN UND VORRICHTUNG ZUM BESTIMMEN DER LADEFLANKEN EINES PIEZOELEKTRISCHEN AKTORS
Title (fr)
PROCEDE ET DISPOSITIF POUR DETERMINER LES FLANCS DE CHARGE D'UN ACTIONNEUR PIEZO-ELECTRIQUE
Publication
Application
Priority
- EP 2005050017 W 20050104
- DE 102004007798 A 20040218
Abstract (en)
[origin: WO2005080776A1] The invention relates to a method for determining the charging flank of a piezoelectric actuator (2) of at least one injector with which a quantity of liquid is injected under high pressure into a cavity, particularly into a combustion chamber of an internal combustion engine. The invention is characterized in that the difference between a cutoff voltage threshold (Ucutoff) and a voltage of the actuator (2) is adjusted to a predeterminable set value shortly before the start of the discharging process (Uadjust).
IPC 8 full level
F02D 41/20 (2006.01); F02D 41/22 (2006.01)
CPC (source: EP)
F02D 41/2096 (2013.01); F02D 41/221 (2013.01); F02D 2041/2051 (2013.01)
Citation (search report)
See references of WO 2005080776A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2005080776 A1 20050901; CN 1922397 A 20070228; CN 1922397 B 20100908; DE 102004007798 A1 20050908; DE 502005006809 D1 20090423; EP 1718854 A1 20061108; EP 1718854 B1 20090311; JP 2006525455 A 20061109; JP 4130840 B2 20080806
DOCDB simple family (application)
EP 2005050017 W 20050104; CN 200580005142 A 20050104; DE 102004007798 A 20040218; DE 502005006809 T 20050104; EP 05701432 A 20050104; JP 2006500134 A 20050104