Brennkraftmaschine, mit einem System zur variablen Betätigung der Einlassventile, welches ausgerüstet ist mit einem elektrischen 3-Wegeventil, welches mit 3 unterschiedlichen Stromstärken bestromt werden kann, und verfahren zur Steuerung dieser Brennkraftmaschine.

Details

Veröffentlichungs-Nr.

EP2801706

Aktenzeichen

EP13167181

Anmeldetag

9. Mai 2013

Veröffentlichung

15. Juni 2016

Erteilung

15. Juni 2016

Rechtsraum

EP

IPC

F01L9/02

Abstract

An internal-combustion engine with two intake valves (7A, 7B) for each cylinder is provided with a system for variable actuation of the intake valves, comprising a single electrically actuated or electromagnetically actuated control valve for each cylinder that controls communication of the pressurized-fluid chamber (C) of the system with an exhaust channel (23). The control valve (24) is a three-way, three-position valve, comprising an inlet (i) permanently communicating with the pressurized-fluid chamber and with the hydraulic actuator of an intake valve (7B), and two outlets (ul, u2) communicating, respectively, with the actuator of the other intake valve (7A) and with said exhaust channel, and has an actuator that supplies a first value of current (11) for bringing the control valve into its aforesaid second position (P2); a second value of current (I2peak), for bringing the control valve into its aforesaid third position (P3); and a third value of current (I2hold).

Anmelder

Firma

C.R.F. Società Consortile per Azioni

Land

🇮🇹 Italien

Fachgebiete