A system for controlling electromechanical of an internal combustion has a
valve-closing electromagnet for attracting the armature coupled to the
valve to close the valve, a valve-opening electromagnet for attracting
the armature to open the valve, a valve-opening spring for biasing the
valve open, and a valve-closing spring for biasing the valve closed. The
method includes de-energizing the valve-closing electromagnet for a
predetermined time, enabling the valve to oscillate by the valve springs,
and then energizing the valve-closing electromagnet to close the valve.
Consequently, only the valve-closing electromagnet is energized to open
and close the valve. The valve biasing springs force the valve to a
location at which the valve-closing electromagnet can close the valve.
This provides an electrical energy over prior methods in which both the
valve-opening and valve-closing electromagnets are energized to actuate
the valve.