Patent ID: 9266594
Filing Date: 2016-02-23
CPC Classification: B63H

Claim Text:
1. A marine propulsion control system for controlling a set of propulsion units carried by a hull of a vessel, wherein the set of propulsion units comprise a first propulsion unit, a second propulsion unit and a third propulsion unit, wherein the second propulsion unit is provided as a center propulsion unit between the first and third propulsion unit, the marine propulsion control system comprising a control unit configured to: receive an input command from a steering control instrument for operating the vessel; determine a desired delivered thrust, gear selection and steering angle for the first, second and third propulsion unit respectively, based on the input command, and provide a set of control commands for controlling the desired delivered thrust, gear selection and steering angle for the first, second and third propulsion unit, wherein if the input command indicates a sway command the first propulsion unit is set to have a forward gear selection and the third propulsion unit is set to have a reverse gear selection, each with a selected thrust level, and only after the thrust level for at least one of the first and the third propulsion unit exceeds a predetermined thrust level the second propulsion unit is set to have a reverse gear selection with a thrust level depending on the selected thrust level of at least one of the first and the third propulsion unit.