Patent ID: 7918696

Claim:
A system for a waterborne vessel, comprising: an engine; an electrical power generator coupled to the engine; a battery; a first motor coupled to a first water flow actuator for controlling positioning of the vessel, the first motor electrically coupled to the electrical power generator and the battery; a second motor coupled to a second water flow actuator for controlling positioning of the vessel, the second motor electrically coupled to the electrical power generator and the battery; an electronic controller for maintaining position of the waterborne vessel by adjusting at least the first water flow actuator and the second water flow actuator, the controller operating the first motor to drive the first water flow actuator while operating the second motor to brake the second water flow actuator during a first condition, the controller further operating the second motor to drive the second water flow actuator while operating the first motor to brake the first water flow actuator during a second condition, wherein the controller operates the second motor to regenerate energy from the second water flow actuator during the first condition, and operates the first motor to regenerate energy from the first water flow actuator during the second condition.