Methods and systems for managing power of an engine

A power management system (100) for online power management of an engine (10). The power management system including a baseline power management component (102) configured to receive at least one data input (112) from an engine control system (104) operating on a first bandwidth, wherein the baseline power management component is configured to operate on a second bandwidth, and a model predictive control (204). The model predictive control is configured to predict an engine operating condition over a desired future horizon using the at least one data input and a closed-loop model of the engine, determine an optimal engine power management based on the prediction, solve a constrained optimization for a desired optimization objective, and output the optimal engine power management.