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Schedule-based methods and systems for controlling hybrid marine propulsion systems

  • US 8,725,329 B1
  • Filed: 02/07/2013
  • Issued: 05/13/2014
  • Est. Priority Date: 02/07/2013
  • Status: Active Grant
First Claim
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1. 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.

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