Abstract: A method of controlling a variable geometry turbocharger is provided. A predefined desired boost pressure of a turbocharger is obtained from a memory. A predefined desired mass flow rate in an intake manifold of an engine is obtained from the memory. A theoretical amount of power required by the turbocharger to generate the desired boost pressure and the desired mass flow rate is calculated. An actual mass flow rate in the intake manifold is determined. An actual amount of power required by the turbocharger to generate the desired boost pressure and the actual mass flow rate is calculated. At least one adjustable vane of the turbine of the turbocharger is adjusted to allow the theoretical amount of power required of the turbocharger to generally equal the actual amount of power by adjusting the boost pressure.

Abstract: A method for controlling an internal combustion engine limits emission of undesirable compounds of nitrogen and oxygen and provides increased transient power.

Abstract: A method of controlling operation of an engine is provided that utilizes a number of preset operating parameters. The method determines an operating mode of the engine. The method determines an operating state of the engine. A plurality of engine parameter settings is retrieved from a memory in response to the determined operating mode and the determined operating state of the engine. The plurality of engine parameter settings are applied to at least one control algorithm of the engine.

Abstract: A rotary device is coupled to the rotary mechanism of a turbocharger for selectively adding torque to and subtracting torque from the rotary turbocharger mechanism. A controller causes the rotary device to apply torque to the rotary turbocharger mechanism which causes the compressor to operate at a power level which creates a target pressure in the intake manifold different from existing pressure in the intake manifold.

Abstract: A method is provided for operating an engine to limit soot emissions during fuel-enriched operation. The method includes operating the engine using a first fuel injection pattern and timing to inject fuel into a combustion chamber of the engine. The method further includes receiving a request for an increased engine power output and operating the engine using a second fuel injection pattern and timing to inject more fuel into the combustion in response to the request for the increased power output, where the second fuel injection pattern and timing is configured to minimize soot emissions during enriched fuel operations, such as during transient operations.

Abstract: A method of operating the turbine booster to improve engine operating response and to increase the effectiveness of emission control devices is disclosed. A turbocharger turbine booster for a turbo charged internal combustion engine provides pressurized air to the turbocharger turbine and increases the oxygen in engine exhaust without increasing the engine combustion oxygen content.