Systems and methods for setting engine speed in a marine propulsion device

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Systems and methods for setting engine speed in a marine propulsion device

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ARBUCKLE JASON S / ANDRASKO STEVEN J / PRZYBYL ANDREW J / O'BRIEN WILLIAM P / GABLE KENNETH G / VAN BUREN DAVID M / SMEDEMA GENE A

Abstract

A method for setting an engine speed of an internal combustion engine in a marine propulsion device of a marine propulsion system to an engine speed setpoint includes determining the engine speed setpoint based on an operator demand and predicting a position of a throttle valve that is needed to achieve the engine speed setpoint. The method also includes determining a feed forward signal that will move the throttle valve to the predicted position, and after moving the throttle valve to the predicted position, adjusting the engine speed with a feedback controller so as to obtain the engine speed setpoint. An operating state of the marine propulsion system is also determined. Depending on the operating state, the method may include determining limits on an authority of the feedback controller to adjust the engine speed and/or determining whether the operator demand should be modified prior to determining the engine speed setpoint.

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Title :

Systems and methods for setting engine speed in a marine propulsion device

Contributors:

ARBUCKLE JASON S (author) / ANDRASKO STEVEN J (author) / PRZYBYL ANDREW J (author) / O'BRIEN WILLIAM P (author) / GABLE KENNETH G (author) / VAN BUREN DAVID M (author) / SMEDEMA GENE A (author)

Publication date :

2017-10-03

Type of media :

Patent

Type of material :

Electronic Resource

Language :

English

Classification :

IPC:

F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung