公开(公告)号：US20190118922A1

公开(公告)日：2019-04-25

申请号：US15799468

申请日：2017-10-31

Applicant: BRP US INC.

Inventor： Samuel MCGINLEY ,  Benjamin JONES ,  Darrell WIATROWSKI

IPC: B63H25/14 ,  B63H20/12 ,  B63H25/02

CPC classification number: B63H25/14 ,  B63H20/12 ,  B63H25/02 ,  B63H25/42 ,  B63H2020/003

Abstract: A hydraulic steering system for a watercraft has first and second hydraulic steering actuators for steering first and second outdrives respectively, at least one hydraulic pump selectively supplying hydraulic pressure to at least one of the first and second actuators, a steering controller operatively connected to the at least one pump, a hydraulic helm selectively supplying hydraulic pressure to the first and second actuators, an auxiliary steering input device connected to the controller, and at least one mode selection valve having first and second mode positions for steering the watercraft in first and second steering modes respectively. In the first steering mode, the hydraulic helm is hydraulically connected to the first and second actuators. In the second steering mode, the hydraulic helm is hydraulically disconnected from the first and second actuators. A watercraft having the steering system and a method for steering a watercraft are also disclosed.

公开(公告)号：US20190071160A1

公开(公告)日：2019-03-07

申请号：US16121062

申请日：2018-09-04

Applicant: BRP US INC.

Inventor： Philip BYLSMA ,  Benjamin JONES

IPC: B63H20/10

Abstract: A method for controlling a trim-tilt angle of a propulsion unit of a marine outboard motor. The method includes: receiving a request to increase the trim-tilt angle of the propulsion unit; determining a motor operation parameter; determining the trim-tilt angle of the propulsion unit; prior to increasing the trim-tilt angle in response to the request, determining if the propulsion unit is in a trim limit condition; increasing the trim-tilt angle of the propulsion unit in response to the request when the propulsion unit is determined not to be in the trim limit condition; and one of maintaining the trim-tilt angle of the propulsion unit and stopping increase of the trim-tilt angle of the propulsion unit when the propulsion unit is determined to be in the trim limit condition. A method for controlling the trim-tilt angle in view of an over-trim condition of the propulsion unit is also disclosed.