Internal combustion engine and method for controlling valve of internal combustion engine

An internal combustion engine comprising:

• at least one cylinder that includes first and second valves that are either first and second intake valves or first and second exhaust valves;
• and
• a controller that:
• determines a target angle of action for the first and second valves;
• determines an interval between a first valve-opening timing at which the first valve starts to open and a second valve-opening timing at which the second valve starts to open, the second valve-opening timing is different from the first valve-opening timing;
• and
• controls an angle of action of the first and second valves according to the determined interval between the first and second valve-opening timings in order to obtain the target angle of action.

An internal combustion engine comprising:

• at least one cylinder that includes at least a first exhaust valve and a second exhaust valve, opened and closed by an electromagnetic force of an electromagnet;
• a detector that detects an engine revolution number of said internal combustion engine;
• and
• a timing controller that controls an interval between a first valve-opening timing at which the first exhaust valve starts opening and a second valve-opening timing at which the second exhaust valve starts opening, wherein the second valve-opening timing is different from the first valve-opening timing in accordance with the detected engine revolution number.