SYSTEM AND METHOD FOR ENGINE CONTROL

1 . A system for controlling transient operations of an engine, comprising:

a controller configured to:

receive a first signal corresponding to a load setpoint of the engine;

determine a boost pressure setpoint based at least on the first signal;

receive a second signal corresponding to an actual boost pressure in the engine;

compare the second signal to the boost pressure setpoint;

actuate or modify one or more of a bypass valve, a wastegate valve, a throttle valve, and a variable valve timing profile when the second signal is greater than or equal to a boost pressure threshold value; and

actuate the throttle valve when the second signal is less than the boost pressure threshold value.

2 . The system of claim 1 , wherein the second signal is sent from a sensor configured to monitor a pressure of fluid exiting a supercharger.

3 . The system of claim 2 , wherein the supercharger comprises a compressor and a turbine.

4 . The system of claim 1 , wherein the second signal is sent from a sensor configured to monitor a pressure of fluid exiting an intake manifold.

5 . The system of claim 1 , wherein the first signal is sent from a load sensor, a sensor configured to sense engine speed, or any other sensor configured to detect a load demand of the engine.

6 . The system of claim 1 , wherein the controller is configured receive a third signal and to compute one or more of a degree of actuation or modification for the bypass valve, the wastegate valve, and the variable valve timing profile based at least on the third signal.

7 . The system of claim 6 , wherein the third signal comprises a quality of fuel entering the engine, an ambient pressure, an ambient temperature, an ambient humidity, or any combination thereof.

8 . A system for controlling transient operations of an engine comprising:

a controller configured to:

receive a first signal corresponding to an engine power setpoint of the engine;

receive a second signal corresponding to an actual engine power of the engine;

determine an ignition timing and a position of a variable valve timing device based at least on the second signal;

receive a third signal from a knock sensor;

compare the first signal to the second signal; and

modify one or more of a variable valve timing profile and an ignition timing map when the first signal is greater than the second signal and when the third signal indicates an engine knock event.

9 . The system of claim 8 , wherein the controller is configured to receive a fourth signal and to compute one or more of a degree of modification of the variable valve timing profile and the ignition timing map based at least on the fourth signal.

10 . The system of claim 9 , wherein the fourth signal comprises a quality of fuel entering the engine, an ambient pressure, an ambient temperature, an ambient humidity, or any combination thereof.

11 . The method of claim 8 , wherein the knock sensor is a piezoelectric accelerometer, a microelectromechanical system sensor, a Hall effect sensor, a magnetostrictive sensor, and/or any other sensor designed to sense vibration, acceleration, acoustics, sound, and/or movement.

12 . The system of claim 9 , wherein the variable valve timing device comprises an intake valve or a throttle valve.

13 . A system for controlling transient operations of an engine, comprising:

a sensor configured to monitor an engine demand;

an actuator coupled to one or more valves; and

a controller configured to:

receive a signal from the sensor corresponding to the engine demand;

determine an operational profile of the one or more valves based on the signal, an operational condition, and an operational constraint; and

send a signal to the actuator to adjust the one or more valves according to the operational profile to satisfy the operational condition and the operational constraint.

14 . The system of claim 13 , wherein the one or more valves comprise one or more of a throttle valve, a compressor bypass valve, a fuel metering valve, a wastegas valve, and an intake valve.

15 . The system of claim 13 , wherein the sensor comprises one or more of a pressure sensor, a temperature sensor, a humidity sensor, and a knock sensor.

16 . The system of claim 13 , wherein the controller comprises a boost control sub-controller that is configured to:

determine pressure demand for a throttle valve based on the engine demand;

actuate the throttle valve when the engine demand is less than a first threshold; and

actuate one or more of a bypass valve, a wastegate valve, and a variable valve timing device when the engine demand is greater than or equal to the first threshold.

17 . The system of claim 13 , comprising a knock sensor, and wherein the controller is configured to:

determine an engine knock event based on a signal received from the knock sensor;

determine an expected ignition timing based on the engine demand;

actuate an intake valve when the engine load is greater than or equal to a first threshold and the signal corresponds to an engine knocking event; and

determine a new ignition timing.

18 . The system of claim 13 , wherein the operational profile comprises a lambda/gas flow profile, an ignition timing profile, a boost pressure profile, a bypass valve closure profile, a throttle valve closure profile, a wastegate valve closure provile, and/or a variable valve timing profile.

19 . The system of claim 13 , wherein the operational constraint comprises a knock limit, a misfire limit, a compressor surge limit, an emission limit, a power demand, an engine speed limit, a pressure limit, a temperature limit, or any combination thereof.

20 . The system of claim 13 , wherein the operational condition comprises an engine load setpoint, an engine speed setpiont, an engine power setpoint, a boost pressure setpoint, or any combination thereof.