Patent ID: 7031821

Claim:
A computer readable storage medium having stored data representing instructions executable by a computer to control an internal combustion engine of a vehicle, said storage medium comprising: instructions to select at least an intake valve for each cylinder of said first cylinder group, located in at least one region of said first and second region, and to select at least a different intake valve for each cylinder of said second cylinder group, located in at least one region of a first and second region, and to select at least an exhaust valve for said first cylinder group located in at least one region of said third and fourth region, and to select at least a different exhaust valve for said second cylinder group located in at least one region of a third and fourth region, and to operate at least one cylinder from each of said selected first and second cylinder group with said selected intake and exhaust valves, without operating non-selected valves, during a respective cycle of said cylinder group.