Global Patent Index - EP 1054138 A3

EP 1054138 A3 20010207 - Method for starting an electromagnetic valve actuator in an internal combustion engine

Title (en)

Method for starting an electromagnetic valve actuator in an internal combustion engine

Title (de)

Verfahren zur Inbetriebnahme eines elektromagnetischen Aktuators zur Betätigung eines Gaswechselventils an einer Kolbenbrennkraftmaschine

Title (fr)

Procédé de démarrage d'un actionneur de soupape électromagnétique dans un moteur à combustion interne

Publication

EP 1054138 A3 20010207 (DE)

Application

EP 00109582 A 20000505

Priority

DE 19922971 A 19990519

Abstract (en)

[origin: EP1054138A2] The method involves alternately applying a capture current to two electromagnets (3,4) with amplitude regulated depending on detected approach of an armature (5) to at least one pole surface. A reference temperature is detected for the magnets and the armature is stimulated to resonant frequency by alternately supplying current to the electromagnets for normal temperature and applied to a defined pole surface, preferably on the closing side. If a low temperature level exists then one of the electromagn preferably the closing one, is supplied with a high current pulse.

IPC 1-7

F01L 9/04

IPC 8 full level

F01L 9/20 (2021.01); F01L 13/00 (2006.01); F02D 13/02 (2006.01); F16K 31/06 (2006.01); F16K 37/00 (2006.01)

CPC (source: EP US)

F01L 9/20 (2021.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 1054138 A2 20001122; EP 1054138 A3 20010207; EP 1054138 B1 20020814; AT E222322 T1 20020815; DE 19922971 A1 20001123; DE 50000374 D1 20020919; JP 2000352325 A 20001219; US 2001013323 A1 20010816; US 6333843 B2 20011225

DOCDB simple family (application)

EP 00109582 A 20000505; AT 00109582 T 20000505; DE 19922971 A 19990519; DE 50000374 T 20000505; JP 2000144921 A 20000517; US 73619600 A 20001215