Brunswick Corporation

Bret A Martin

Phillip D Magee

Andrew S Waisanen

Brad E Taylor

Jeffrey C Etapa

Daniel E Clarkson

Michael J Biel

Guy A Coonts

David W Dochterman

Chad W Martin

A method of controlling a plurality of marine drives on a multi-hull marine vessel includes determining, based on steering information, that the multi-hull marine vessel is entering a turn and then receiving a running trim position for each marine drive. A trim position of at least a portion of the plurality of marine drives is then adjusted from each respective running trim position so as to induce roll of the multi-hull marine vessel during the turn.

System and method for controlling trim position of marine drives on a multi-hull marine vessel

A stern drive arrangement is for propelling a marine vessel in water. A diverter valve is movable into and between an open position in which the exhaust gas is allowed to flow through the above-water outlet via the secondary exhaust conduit and a closed position in which the exhaust gas is at least partially prevented from flowing through an above-water outlet via a secondary exhaust conduit. Via a bypass conduit, the exhaust gas in the secondary exhaust conduit can bypass the diverter valve and discharge to atmosphere when the diverter valve is in the closed position.

Stern drive arrangements having idle relief exhaust gas bypass

A marine propulsion system is provided with an electric motor that drives a water pump. This arrangement allows an engine control unit to selectively change the speed of the electric motor and the water pump to suit operating conditions of the engine. Rather than driving the water pump directly from an output shaft of the internal combustion engine, it is driven by the electric motor which responds to signals provided by the engine control unit. These signals are preferably pulsed width modulated signals in which the duty cycle is changed to affect a change in the operating speed of the motor.

Marine propulsion system having a water pump driven by an electric motor

A Hall effect rotational position sensor is mounted on a pivotable member of a marine propulsion system and a rotatable portion of the rotational position sensor is attached to a drive structure of the marine propulsion system. Relative movement between the pivotable member, such as a gimbal ring, and the drive structure, such as the outboard drive portion of the marine propulsion system, cause relative movement between the rotatable and stationary portions of the rotational position sensor. As a result, signals can be provided which are representative of the angular position between the drive structure and the pivotable member.

Hall effect trim sensor system for a marine vessel

A steering sensor system is provided for a marine vessel in which a rotational position sensor is attached to a guide member that rotates about the central axis of the rotor of the rotational position sensor. A pin is attached to a moveable portion of the steering actuator and slidably disposed within a slot formed in the guide member. The pin is slidably within the slot as the moveable portion of the steering actuator moves along an acuate path that does not have the same center of rotation as the rotation of the rotatable portion of the rotational position sensor. The sliding of the pin within the slot of the guide member accommodates these different radii of curvature.

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Wellington, FL, United States of America

Bret A Martin