Control for marine propulsion
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorKo Tanaka
Life of this patent
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Abstract
The invention relates to an engine control system for an internal combustion engine for propulsion of an associated watercraft. The engine includes an air intake in communication with a combustion chamber of the engine and an air intake adjustment means for altering the amount of air let into the combustion chamber of the engine. There is also an operation device controlling a water propulsion device of the watercraft. The device is movable between a forward, a neutral or a reverse position. A first control means for controls the air intake adjustment means based upon the position of the movable operating device. A second control means controls the air intake adjustment means independent of the first control means based upon a set of predetermined conditions.
Claims22
An engine control system for an internal combustion engine for propulsion of an associated watercraft, said engine including an air intake in communication with a combustion chamber of said engine, an air intake adjustment means for altering the amount of air let into said combustion chamber of said engine comprised of first and second independently operated air intake adjustment devices, an operation device controlling a water propulsion device of said watercraft said device movable between a forward, a neutral or a reverse position, a first control means for controlling said first air intake adjustment device based upon the position of said movable operating device, a second control means for controlling said second air intake adjustment device independent of said first control means based upon a set of predetermined conditions.
A method of operating an internal combustion engine of a watercraft including an air intake in communication with a combustion chamber of said engine, main throttle air intake adjustment means for adjusting the air flow in said intake member and to said combustion chamber of said engine and an idle air intake adjustment means for bypassing said main throttle air intake adjustment means for controlling idle air flow and control means for the adjustment of said air intake adjustment means comprising of the steps of increasing the air flow into said main throttle air intake adjustment means and to said combustion chamber of said engine dependent on said position based upon a position of an operating device movable in a forward, a neutral and a reverse position and for controlling said idle air intake adjustment means based on a predetermined condition.
Dependencies are inferred from the claim text.