Abstract: A method for controlling low-speed propulsion of a marine vessel powered by a marine propulsion system having a plurality of propulsion devices includes receiving a signal indicating a position of a manually operable input device movable to indicate desired vessel movement within three degrees of freedom, and associating the position of the manually operable input device with a desired inertial velocity of the marine vessel. A steering position command and an engine command are then determined for each of the plurality of propulsion devices based on the desired inertial velocity and the propulsion system is controlled accordingly. An actual velocity of the marine vessel is measured and a difference between the desired inertial velocity and the actual velocity is determined, where the difference is used as feedback in subsequent steering position command and engine command determinations.

Abstract: A method for controlling propulsion of a marine vessel powered by a marine propulsion system including a plurality of propulsion devices includes operating at least one proximity sensor to determine a relative position of the marine vessel with respect to an object, the at least one proximity sensor having a field of view (FOV), identifying a trigger condition for expanding the FOV of the at least one proximity sensor, and determining whether the object will be sufficiently captured based on recent vessel angle data of the marine vessel. Upon determining that the object will not be sufficiently captured, thrust and/or steering position of at least one of the plurality of propulsion devices is controlled to expand the FOV of the at least one proximity sensor by inducing a roll movement or a pitch movement of the marine vessel.

Abstract: A method for controlling propulsion of a marine vessel powered by a marine propulsion system including a plurality of propulsion devices includes operating at least one proximity sensor to determine a relative position of the marine vessel with respect to an object, the at least one proximity sensor having a field of view (FOV), identifying a trigger condition for expanding the FOV of the at least one proximity sensor, and determining whether the object will be sufficiently captured based on recent vessel angle data of the marine vessel. Upon determining that the object will not be sufficiently captured, thrust and/or steering position of at least one of the plurality of propulsion devices is controlled to expand the FOV of the at least one proximity sensor by inducing a roll movement or a pitch movement of the marine vessel.

Abstract: A propulsion control system for a marine vessel includes a plurality of propulsion devices steerable to propel the marine vessel, at least one proximity sensor that determines a relative position of the marine vessel with respect to an object, wherein the at least one proximity sensor has a field of view (FOV). A controller is configured to identify a trigger condition for expanding the FOV of the at least one proximity sensor and control thrust and/or steering position of at least one of the plurality of propulsion devices to expand the FOV of the at least one proximity sensor by inducing a roll movement or a pitch movement of the marine vessel.

Abstract: A method for controlling low-speed propulsion of a marine vessel powered by a marine propulsion system having a plurality of propulsion devices includes receiving a signal indicating a position of a manually operable input device movable to indicate desired vessel movement within three degrees of freedom, and associating the position of the manually operable input device with a desired inertial velocity of the marine vessel. A steering position command and an engine command are then determined for each of the plurality of propulsion devices based on the desired inertial velocity and the propulsion system is controlled accordingly. An actual velocity of the marine vessel is measured and a difference between the desired inertial velocity and the actual velocity is determined, where the difference is used as feedback in subsequent steering position command and engine command determinations.

Abstract: A steering system on a marine vessel includes a steering wheel, a wheel sensor configured to measure wheel movement of the steering wheel, a steering actuator configured to rotate a steerable component based on movement of the steering wheel, and a variable resistance device controllable to apply a variable resistance amount to resist movement of the steering wheel. The system further comprises a controller that controls the variable resistance device and is configured to receive the wheel movement measurements by the wheel sensor and determine a resistance amount based on the wheel movement measurements and a corresponding steering response relative to the response capability of the steering system, and then to control the variable resistance device based on the resistance amount.

Abstract: A method for controlling low-speed propulsion of a marine vessel powered by a marine propulsion system having a plurality of propulsion devices includes receiving a signal indicating a position of a manually operable input device movable to indicate desired vessel movement within three degrees of freedom, and associating the position of the manually operable input device with a desired inertial velocity of the marine vessel. A steering position command and an engine command are then determined for each of the plurality of propulsion devices based on the desired inertial velocity and the propulsion system is controlled accordingly. An actual velocity of the marine vessel is measured and a difference between the desired inertial velocity and the actual velocity is determined, where the difference is used as feedback in subsequent steering position command and engine command determinations.

Abstract: A method for controlling low-speed propulsion of a marine vessel powered by a marine propulsion system having a plurality of propulsion devices includes receiving a signal indicating a position of a manually operable input device movable to indicate desired vessel movement within three degrees of freedom, and associating the position of the manually operable input device with a desired inertial velocity of the marine vessel. A steering position command and an engine command are then determined for each of the plurality of propulsion devices based on the desired inertial velocity and the propulsion system is controlled accordingly. An actual velocity of the marine vessel is measured and a difference between the desired inertial velocity and the actual velocity is determined, where the difference is used as feedback in subsequent steering position command and engine command determinations.

Abstract: A propulsion control system for a marine vessel includes a plurality of propulsion devices steerable to propel the marine vessel, at least one proximity sensor that determines a relative position of the marine vessel with respect to an object, wherein the at least one proximity sensor has a field of view (FOV). A controller is configured to identify a trigger condition for expanding the FOV of the at least one proximity sensor and control thrust and/or steering position of at least one of the plurality of propulsion devices to expand the FOV of the at least one proximity sensor by inducing a roll movement or a pitch movement of the marine vessel.