Patent Number: 6,332,436

Title: Method for the control of electromagnetic actuators for the actuation of intake and exhaust valves in internal combustion engines

Abstract: A method for the control of an electromagnetic actuator coupled to a respective valve and provided with a moving member actuated magnetically, by means of a net force, in order to control the movement of the valve between a closed position and a position of maximum opening, a pair of electromagnets disposed on opposite sides with respect to the moving member and an elastic member adapted to maintain the valve in a rest position. The method comprises the stages of estimating the disturbing forces acting on the valve, calculating an actual force as a function of the objective force value and the disturbing forces and implementing this actual force value.

Inventors: Di Lieto; Nicola (Salerno, IT), Burgio; Gilberto (Ferrara, IT), Flora; Roberto (Florli', IT)

Assignee: Magneti Marelli S.p.A.

International Classification: F01L 9/04 (20060101); F01L 009/04 ()

Expiration Date: 12/25/2018