公开(公告)号：US20210061431A1

公开(公告)日：2021-03-04

申请号：US17007370

申请日：2020-08-31

Applicant: BRP US Inc.

Inventor： Samuel MCGINLEY ,  Philip BYLSMA

IPC: B63H20/12

Abstract: A power steering system for an outdrive engine has a steering actuator, a motor for operating the steering actuator, a motor speed sensor for determining at least indirectly a speed of the motor, a steering rate sensor for determining a steering rate, and a controller communicating with the steering rate sensor and with the motor speed sensor. The controller is programmed for determining if a fault has occurred in the power steering system based on the steering rate and the motor speed, and taking at least one steering fault action in response to the fault having occurred. A method for controlling a power steering system includes determining if a fault has occurred based on the steering rate and the speed of the motor, and taking at least one steering fault action in response to the fault having occurred.

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.