EP 1457644 B1 20051123 - Method and apparatus for monitoring the position of a variable valve control
Title (en)
Method and apparatus for monitoring the position of a variable valve control
Title (de)
Verfahren und Vorrichtung zur Überwachung der Stellung einer variablen Ventilsteuerung
Title (fr)
Méthode et dispositif pour surveiller la position d'une commande variable de soupapes
Publication
Application
Priority
EP 03075727 A 20030312
Abstract (en)
[origin: EP1457644A1] A method and apparatus for monitoring the position of a variable valve control in a combustion engine having a plurality of cylinders, comprising the followings steps: measuring engine speed over at least one engine cycle for all cylinders included in said plurality of cylinders, determining engine speed fluctuations for respective cylinder as the difference between maximum and minimum engine speed at a time interval including the combustion stroke of respective cylinder. <IMAGE>
IPC 1-7
IPC 8 full level
F01L 1/14 (2006.01); F01L 13/00 (2006.01); F02D 41/14 (2006.01)
CPC (source: EP)
F01L 1/143 (2013.01); F01L 13/0036 (2013.01); F01L 2001/0537 (2013.01); F01L 2800/00 (2013.01); F02D 41/1498 (2013.01)
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 1457644 A1 20040915; EP 1457644 B1 20051123; DE 60302426 D1 20051229; DE 60302426 T2 20060817
DOCDB simple family (application)
EP 03075727 A 20030312; DE 60302426 T 20030312