Method to control engine using airflow actuators

A method for controlling an engine system of a vehicle, the method comprising:

• generating an air torque request for an engine based on driver input;
• using model predictive control (MPC):
• identifying a plurality of sets of possible target values based on the air torque request, each of the plurality of sets of possible target values including a possible target effective throttle area percentage and a possible target effective wastegate area percentage;
• determining a predicted set of operating parameters for each of the plurality of sets of possible target values, respectively, based on a plurality of measured disturbances and a plurality of feedback inputs;
• determining cost values for each of the plurality of sets of possible target values based on the predicted set of operating parameters of each of the plurality of sets of possible target values, respectively;
• selecting one of the plurality of sets of possible target values based on the cost values;
• and
• selecting a set of target values based on the selected one of the plurality of the sets of possible target values, the set of target values including a target effective throttle area percentage and a target effective wastegate area percentage;
• determining a target opening area of the throttle valve based on the target effective throttle area percentage;
• and
• controlling the throttle valve based on the target opening area.

A method for controlling an engine system of a vehicle, the method comprising:

• generating an air torque request for an engine based on driver input;
• using model predictive control (MPC):
• identifying a plurality of sets of possible target values based on the air torque request, each of the plurality of sets of possible target values including a possible target effective throttle area percentage a possible target effective wastegate area percentage, a possible target exhaust cam maximum opening position, and a possible target intake cam maximum opening position;
• determining a predicted set of operating parameters for each of the plurality of sets of possible target values, respectively, based on a plurality of measured disturbances and a plurality of feedback inputs;
• determining cost values for each of the plurality of sets of possible target values based on the predicted set of operating parameters of each of the plurality of sets of possible target values, respectively;
• selecting one of the plurality of sets of possible target values based on the cost values;
• and
• selecting a set of target values based on the selected one of the plurality of the sets of possible target values, the set of target values including a target effective throttle area percentage, a target effective wastegate area percentage, a target exhaust cam maximum opening position, and a target intake cam maximum opening position;
• determining a target opening area of a throttle valve based on the target effective throttle area percentage;
• and
• controlling the throttle valve based on the target opening area.