公开(公告)号：US20190300137A1

公开(公告)日：2019-10-03

申请号：US16302823

申请日：2016-05-18

Applicant: ABB Oy

Inventor： Jari Toiva

IPC: B63H21/21 ,  B63H1/15 ,  B63H1/14 ,  B63H21/17 ,  B63J99/00

Abstract: The propulsion unit includes a frame construction having an upper portion forming a support arm protruding from a hull of the vessel and a lower portion forming a longitudinal compartment provided with a propeller shaft having at least one propeller attached thereto, and a first electric motor driving the propeller shaft. The method includes measuring vibrations of the propulsion unit with at least one measuring device, forming a first auxiliary torque control signal based on the measured vibration signal, adding the first auxiliary torque control signal to a first torque control signal produced by a first torque controller of the first electric motor. The first auxiliary torque signal acts against the measured vibrations.

公开(公告)号：US10894590B2

公开(公告)日：2021-01-19

申请号：US16302823

申请日：2016-05-18

Applicant: ABB Oy

Inventor： Jari Toiva

IPC: B63H21/21 ,  B63H1/15 ,  B63H1/14 ,  B63H21/17 ,  B63J99/00 ,  G05D19/02 ,  F16F15/00 ,  F16F15/02 ,  B63B71/00 ,  B63H5/125 ,  B63B79/00

Abstract: The propulsion unit includes a frame construction having an upper portion forming a support arm protruding from a hull of the vessel and a lower portion forming a longitudinal compartment provided with a propeller shaft having at least one propeller attached thereto, and a first electric motor driving the propeller shaft. The method includes measuring vibrations of the propulsion unit with at least one measuring device, forming a first auxiliary torque control signal based on the measured vibration signal, adding the first auxiliary torque control signal to a first torque control signal produced by a first torque controller of the first electric motor. The first auxiliary torque signal acts against the measured vibrations.