Internal combustion engine with a processor and electromagnetic valve actuators

A processor includes functional units (34,38,39) to control valves of a motor next one at least two of the three modes. A press mode is activated relative to the number (n) of active cylinders. A disabled cylinder has its valves maintained closed, relative to the number and/or to the type of valves maintained active by the cylinder. A number of active cylinders is determined before a number and/or marks it of active valves by cylinder of every active valve being determined.