Brunswick Corporation

Gm Global Technolgoy Operations, Inc.

Allison Transmission, Inc.

Bruswick Corporation

Steven J Andrasko

Jason S Arbuckle

Andrew J Przybyl

Kenneth G Gable

Steven M Anschuetz

Michael J Lemancik

Brad E Taylor

Yun Xiao

David M Van Buren

Thomas S Kirchhoff

Matthew W Jaeger

John P Kresse

Stephen R Collins

John I S Park

Mark W Henker

Brad J VanRuiswyk

Brett Caldwell

Justin R Poirier

Kevin Kluemper

David P Quigley

Daniel E Clarkson

Daniel J Balogh

Wade A Loberger

Matthew W Snyder

Aaron J Ward

William P O'Brien

Brent T Deep

Christopher J Kalebjian

Gene A Smedema

Thomas L Bahensky

Travis C Malouf

Andrew S Waisanen

Robert Raymond Osthelder

Chad E Marlett

Douglas D Reichardt

Matthew J Snider

Ryan A Fergus

Robert J Sutschek

Ameer B Ambavaram

Bryan A Kuieck

Jason P Hafer

Thomas E Wiseman

Scott M Neher

Aaron K Saltsman

Michael M Blackwood

Richard A Barkman

Robert T Stockwell

Andrew Sheely

Michael J Roth

A system for steering a marine vessel includes first and second marine drives connected by a mechanical link such that they are steered in parallel, a first steering actuator configured to rotate the first marine drive and a first steering position sensor configured to measure a steering position thereof. A second steering actuator configured to rotate the second marine drive. The control system is configured to receive a steering command and a current steering position from the first steering position sensor. A first steering instruction is then determined for the first steering actuator based on the steering command and the current steering position such that the first steering actuator bears a first portion of a total steering load to effectuate the steering command. A coordinated steering instruction is determined for the second steering actuator such that the second steering actuator bears a remaining portion of the total steering load.

Parallel steering actuation system and method for a marine vessel

A propulsion system and propulsion control method for a marine vessel is configured to detect a steering position of at least one propulsion device, determine a difference between the detected steering position and a centered steering position, and require, by a controller, that the detected steering position be within a threshold range of the centered steering position prior to enabling a joystick thrust control mode wherein thrust by the at least one propulsion device is controlled based on user input at a joystick.

Marine propulsion control system and method

A method for maintaining a marine vessel at a target position in a body of water, the method being carried out by a processing system and including: estimating at least one roughness condition of the body of water based on measurements related to an attitude of the marine vessel; calculating a desired linear velocity based on a difference between an actual position of the marine vessel and the target position; filtering an actual linear velocity of the marine vessel based on the roughness conditions; and operating a propulsion system of the marine vessel to move the marine vessel to minimize a difference between the desired linear velocity and the filtered actual linear velocity. A method for maintaining a marine vessel at a target heading in a body of water is also disclosed.

Marine vessel station keeping to reduce wear and noise on propulsion system

An outboard motor has a top cowl and a service lid on the top cowl is movable into and between a closed position enclosing the powerhead compartment and an open position providing manual access to the powerhead compartment from above the outboard motor. An engine is in the powerhead compartment, wherein a peripheral gap is defined between the top cowl and the engine. A serviceable engine oil device is in the peripheral gap and is manually accessible from above the outboard motor when the service lid is in the open position. A serviceable transmission fluid device is in the peripheral gap and is manually accessible from above the outboard motor when the service lid is in the open position. A serviceable gearcase fluid device is in the peripheral gap and is manually accessible from above the outboard motor when the service lid is in the open position.

Top-down serviceable outboard motors

A propulsion system on a marine vessel includes at least one steerable propulsion device and at least one lateral thruster. A steering wheel is operable by a user to steer the at least one propulsion device. A user interface device is operable by a user to provide at least a lateral thrust command to command lateral movement and a rotational thrust command to command rotational movement of the vessel. A controller is configured to determine a difference between a steering position of the propulsion device and a centered steering position. A user interface display is controllable to indicate at least one of the steering position of the propulsion device and the difference between the steering position and the centered steering position. The controller is further configured to determine that the steering position is within a threshold range of the centered steering position prior to enabling a joystick thrust control mode.

A method is disclosed for controlling heading of a marine vessel having a steerable component coupled thereto, the steerable component being rotatable to affect a direction of movement of the vessel. The method is carried out by a control module and includes accepting a command to initiate a control mode in which the vessel's heading is to be maintained at a desired heading. The method includes receiving a current heading of the vessel and determining a heading error between the current heading and the desired heading. The method also includes determining if the vessel is on-plane or off-plane. In response to the vessel being off-plane, the method includes controlling the steerable component to rotate by at least a predetermined correction amount away from a starting position in a direction that will cause the vessel to rotate to reduce the heading error, and subsequently to rotate back toward the starting position.

Method for controlling heading of a marine vessel

A marine propulsion system for a marine vessel has an outboard motor including a cowl covering an internal combustion engine that powers the outboard motor and an accelerometer mounted to the outboard motor. A control module is communicatively connected to the accelerometer. The control module receives information regarding an acceleration of the outboard motor from the accelerometer. The control module uses the information regarding the acceleration of the outboard motor to do at least one of the following: determine an angle of the outboard motor with respect to gravity; determine an amount of oil in an oil sump of the outboard motor; and determine if a reading of the amount of oil in the oil sump is accurate.

Systems and methods for enhancing features of a marine propulsion system

A method for controlling marine vessel speed includes determining a setpoint vessel speed, which is constant while the system is operating in a cruise control mode. The method includes using vessel speed feedback control to adjust operational characteristics of the engine so as to achieve the setpoint vessel speed. The method also includes determining a measured vessel speed and filtering the measured vessel speed. In response to determining that the measured vessel speed is within a given range of the constant setpoint vessel speed, the method includes transitioning to the cruise control mode and comparing the filtered measured vessel speed to the constant setpoint vessel speed for purposes of the feedback control.

Systems and methods for controlling vessel speed when transitioning from launch to cruise

A method for maintaining a marine vessel propelled by a marine propulsion device in a selected position includes determining a current global position of the marine vessel and receiving a signal command to maintain the current global position. The current global position is stored as a target global position in response to receiving the signal command. A subsequent global position of the marine vessel is determined and a position error difference between the subsequent global position and the target global position is determined. The method includes determining marine vessel movements required to minimize the position error difference, and causing the marine propulsion device to produce a thrust having a magnitude, a direction, and an angle calculated to result in achievement of the required marine vessel movements. At least one of timing and frequency of discontinuity of thrust production is controlled while the position error difference is minimized.

Station keeping methods

A method for maintaining a marine vessel at a global position and/or heading includes receiving measurements related to vessel attitude and estimating water roughness conditions based on the measurements. A difference between the vessel's actual global position and the target global position and/or a difference between the vessel's actual heading and the target heading are determined. The method includes calculating a desired linear velocity based on the position difference and/or a desired rotational velocity based on the heading difference. The vessel's actual linear velocity and/or actual rotational velocity are filtered based on the roughness conditions. The method includes determining a difference between the desired linear velocity and the filtered actual linear velocity and/or a difference between the desired rotational velocity and the filtered actual rotational velocity. The method also includes calculating vessel movements that will minimize the linear velocity difference and/or rotational velocity difference and carrying out the calculated movements.

A propulsion system on a marine vessel includes at least one steerable propulsion device and at least one lateral thruster. A steering wheel is mechanically connected to and operable by a user to steer the at least one propulsion device. A user interface device is operable by a user to provide at least a lateral thrust command to command lateral movement and a rotational thrust command to command rotational movement of the vessel. A controller is configured to determine a difference between a steering position of the propulsion device and a centered steering position. A user interface display is controllable to indicate at least one of the steering position of the propulsion device and the difference between the steering position and the centered steering position. The controller is further configured to determine that the steering position is within a threshold range of the centered steering position.

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Oshkosh, WI, United States of America

Steven J Andrasko