Engine operation using fully flexible valve and injection events

A method for controlling a plurality of operational modes of an engine including valve and injection events, in which the engine comprises a plurality of cylinders having an intake and exhaust valve, an injector, a chamber and an intake and exhaust port, wherein the plurality of cylinders are connected by an intake and exhaust manifold, said method comprising the steps of:

• controlling, independently, a mode of operation for each of the cylinders by:
• controlling at least one of an opening and closing of the intake and exhaust valves of a given cylinder independently of the operation of the intake and exhaust valves of the others of said plurality of cylinders;
• and
• controlling fuel injection timing of the injector of said given cylinder independently of the opening and closing of the intake and exhaust valves of said given cylinder and of the operation of the injection of said other cylinders.

An internal combustion engine adapted to perform a plurality of operational modes including a combination of independent cylinder events, wherein said engine comprises:

• a plurality of cylinders, connected by an intake and exhaust manifold, each cylinder comprising an intake and exhaust valve, an injector, a chamber, an intake and exhaust port;
• means for governing at least a first cylinder of said plurality of cylinders in a first operational mode, wherein said first operational mode has a first ordered set of cylinder events;
• and
• means for independently governing at least a second cylinder of said plurality of cylinders in a second operational mode, wherein said second operational mode has a second ordered set of cylinder events;
• wherein said first ordered set of cylinder events is different from said second ordered set of cylinder events.

A method for controlling simultaneous firing of a plurality of cylinders of an internal combustion engine by scheduling of combustion events, comprising the steps of:

• (1) placing two cylinders in a firing mode to cause substantially simultaneous blow-down;
• (2) waiting approximately 240.degree. of crank shaft rotation;
• (3) placing two further cylinders in a firing mode to cause additional substantially simultaneous blow-down;
• and
• (4) repeating steps 2 and 3 to increase turbocharger speed at low engine speed.