EP 1618291 B1 20100519 - METHOD FOR OPERATING A HYDRAULIC ACTUATOR, ESPECIALLY A GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR OPERATING A HYDRAULIC ACTUATOR, ESPECIALLY A GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUM BETREIBEN EINES HYDRAULISCHEN AKTORS, INSBESONDERE EINES GASWECHSELVENTILS EINER BRENNKRAFTMASCHINE
Title (fr)
PROCEDE POUR FAIRE FONCTIONNER UN ACTIONNEUR HYDRAULIQUE, EN PARTICULIER UNE SOUPAPE D'ECHANGE DES GAZ D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0303305 W 20031006
- DE 10310300 A 20030310
Abstract (en)
[origin: DE10310300A1] Method for operating the hydraulic actuator of a combustion engine valve in which the to determine the actual operating behavior of the actuator (26) the work space (60) of the actuator is temporarily connected to a hydraulic fluid accumulator (80). The resultant pressure drop in the accumulator is measured and, based on the known geometrical parameters of the actuator, the current stroke position of the actuator is determined and at least a measurement pair of opening time and stroke of an actuator element (58) determined. The invention also relates to a corresponding computer program for method implementation, a control and or regulation unit for a combustion engine and a combustion engine, especially for a motor vehicle.
IPC 8 full level
F01L 9/02 (2006.01); F01L 9/10 (2021.01); F15B 1/02 (2006.01); F15B 15/28 (2006.01); F15B 19/00 (2006.01)
CPC (source: EP US)
F01L 9/10 (2021.01 - EP US); F15B 1/024 (2013.01 - EP US); F15B 15/2838 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT SE
DOCDB simple family (publication)
DE 10310300 A1 20040923; DE 50312728 D1 20100701; EP 1618291 A1 20060125; EP 1618291 B1 20100519; JP 2006514206 A 20060427; JP 4500168 B2 20100714; US 2006241846 A1 20061026; US 7380528 B2 20080603; WO 2004081350 A1 20040923
DOCDB simple family (application)
DE 10310300 A 20030310; DE 0303305 W 20031006; DE 50312728 T 20031006; EP 03770900 A 20031006; JP 2004569263 A 20031006; US 54719006 A 20060504