US Patent 7575491 Controller for an electric propulsion system for watercraft

A controller for an electric propulsion system for watercraft that provides for speed, steering and direction of propulsion with a single stick mechanism. The position of the joystick handle relative to the center position will define speed (deflection from center position), steering (angle position of the deflection relative to the stick access), and propulsion direction based upon the quadrant deflection in the angular position and the angle position of that deflection. The present control system includes an all electric wire connection between the controller and the electric motors eliminating any mechanical connections.