Electric assist and variable geometry turbocharger

A controller for controlling intake charge pressure to an internal combustion engine, the controller comprising:

• control logic to determine one or more control parameters based at least partially on a intake charge target pressure;
• and
• one or more outputs to output the one or more control parameters to control an electric motor operatively coupled to a compressor capable of boosting intake charge pressure, to control a generator, the generator operatively coupled to the turbine, and to control a variable geometry actuator capable of adjusting exhaust flow to a turbine.

A method for controlling intake charge pressure to an internal combustion engine, the method comprising:

• determining one or more control parameters based at least partially on an intake charge target pressure;
• and
• outputting the one or more control parameters to control an electric motor operatively coupled to a compressor capable of boosting intake charge pressure, to control a generator, the generator operatively coupled to the turbine, and to control a variable geometry actuator capable of adjusting exhaust flow to a turbine.

A controller for controlling intake charge pressure to an internal combustion engine, the controller comprising:

• control logic means for determining one or more control parameters based at least partially on a intake charge target pressure wherein the control logic means includes use of an operation function that pertains to operation of an electric motor as a function of time;
• and
• output means for outputting the one or more control parameters to control the electric motor operatively coupled to a compressor capable of boosting intake charge pressure and to control a variable geometry actuator capable of adjusting exhaust flow to a turbine.

A controller for controlling intake charge pressure to an internal combustion engine, the controller comprising:

• control logic to determine one or more control parameters based at least partially on a intake charge target pressure wherein the control logic includes use of an operation function that pertains to operation of an electric motor as a function of time;
• and
• one or more outputs to output the one or more control parameters to control the electric motor operatively coupled to a compressor capable of boosting intake charge pressure and to control a variable geometry actuator capable of adjusting exhaust flow to a turbine.

A method for controlling intake charge pressure to an internal combustion engine, the method comprising:

• determining one or more control parameters based at least partially on an intake charge target pressure wherein the determining includes use of an operation function that pertains to operation of an electric motor as a function of time;
• and
• outputting the one or more control parameters to control the electric motor operatively coupled to a compressor capable of boosting intake charge pressure and to control a variable geometry actuator capable of adjusting exhaust flow to a turbine.