Control apparatus for boat
AssigneeHonda Motor Co., Ltd.
InventorsKoji KURIYAGAWA, Hiroshi YAMAMOTO, Hajime YOSHIMURA
Life of this patent
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Abstract
In an apparatus for controlling a boat equipped with an outboard motor mounted on its stem and having an internal combustion engine, a propeller to be driven by the engine and a propeller pitch changer adapted to variably change a pitch of the propeller, an opening of a throttle valve installed at an air intake system of the engine and its change amount are detected, and based on the change amount of the detected opening of the throttle valve, it is determined whether or not the pitch of the propeller is to be changed through the propeller pitch changer.
Claims15
An apparatus for controlling a boat equipped with an outboard motor mounted on its stem and having an internal combustion engine, a propeller to be driven by the engine and a propeller pitch changer adapted to variably change a pitch of the propeller, comprising:
- a throttle opening detector that detects an opening of a throttle valve installed at an air intake system of the engine;
- a throttle opening change amount calculator that calculates a change amount of the detected opening of the throttle valve;
- and
- a propeller pitch change determiner that determines whether or not the pitch of the propeller is to be changed through the propeller pitch changer based on the change amount of the detected opening of the throttle valve.
An apparatus for controlling a boat equipped with an outboard motor mounted on its stem and having an internal combustion engine, a propeller to be driven by the engine and a propeller pitch changer adapted to variably change a pitch of the propeller, comprising:
- a throttle opening detecting means for detecting an opening of a throttle valve installed at an air intake system of the engine;
- a throttle opening change amount calculating means for calculating a change amount of the detected opening of the throttle valve;
- and
- a propeller pitch change determining means for determining whether or not the pitch of the propeller is to be changed through the propeller pitch changer based on the change amount of the detected opening of the throttle valve.
A method for controlling a boat equipped with an outboard motor mounted on its stem and having an internal combustion engine, a propeller to be driven by the engine and a propeller pitch changer adapted to variably change a pitch of the propeller, comprising the step of:
- detecting an opening of a throttle valve installed at an air intake system of the engine;
- calculating a change amount of the detected opening of the throttle valve;
- and
- determining whether or not the pitch of the propeller is to be changed through the propeller pitch changer based on the change amount of the detected opening of the throttle valve.
Dependencies are inferred from the claim text.