Method of piloting electromagnetic actuators for the control of a plurality of valves of an engine

摘要

Method for piloting electromagnetic actuators for the control of the valves of an engine; each electromagnetic actuator is provided with at least one respective electromagnet, which is piloted by a common piloting device by means of the supply of an electric current wave which has two, initial and end control portions in which the intensity of the electric current varies rapidly and an intermediate maintenance portion in which the intensity of the electric current remains substantially constant; the method consists of supplying respective electric current waves cyclically to the electromagnets in order to control the valves according to the drive point, and to vary at a control portion of each wave the value of the intensity of the electric current supplied during the portions of maintenance of the other waves in order to limit the variation of the quantity of electric charge distributed overall by the piloting device.