Patent ID: 8725329

Claim:
A method for controlling a hybrid propulsion system for a marine vessel, the method comprising: controlling with a control circuit an electric motor-generator according to at least two modes, including a first mode wherein the electric motor-generator receives power from a battery and rotates a driveshaft to drive a propulsor and a second mode wherein the electric motor-generator generates power to charge the battery based upon torque from an internal combustion engine; inputting to the control circuit a time criteria and at least one user-desired operational characteristic of at least one of the internal combustion engine, electric motor-generator, and battery; based on the time criteria and user-desired operational characteristic, calculating with the control circuit a schedule for at least one of charging the battery with the electric motor-generator and discharging the battery to a house load of the marine vessel; and controlling with the control circuit operation of the electric motor-generator according to the schedule.