Back to results
US 7,077,713 B2Granted
Engine speed control system for outboard motor
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsHiroshi Watabe, Hideaki Takada, Yoshinori Masubuchi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsHiroshi Watabe, Hideaki Takada, Yoshinori Masubuchi
Estimating the term…
In an engine speed control system for an outboard motor having a throttle valve that regulates air to be sucked and an actuator connected to the throttle valve to move it in an opening direction or in a closing direction, the actuator is driven to move the throttle valve in the closing direction such that the engine speed drops, if it is discriminated that a detected engine speed exceeds a predetermined speed (set to a speed at which the engine can assumably continue to run until the boat has returned to port), when a trouble has occurred in the engine. Thus, the system can lower the engine speed so as to allow the boat to return to port, without causing the engine to vibrate, when a trouble has occurred in the engine.
A system for controlling a speed of an internal combustion engine installed in an outboard motor mounted on a boat and having a propeller powered by the engine to propel the boat, the engine having a throttle valve that regulates air to be sucked, comprising:
A method of controlling speed of an internal combustion engine installed in an outboard motor mounted on a boat and having a propeller powered by the engine to propel the boat, the engine having a throttle valve that regulates air to be sucked and an actuator connected to the throttle valve to move it in an opening direction or in a closing direction, comprising the steps of:
A computer program embodied on a computer-readable medium for controlling speed of an internal combustion engine installed in an outboard motor mounted on a boat and having a propeller powered by the engine to propel the boat, the engine having a throttle valve that regulates air to be sucked and an actuator connected to the throttle valve to move it in an opening direction or in a closing direction, comprising the steps of:
Dependencies are inferred from the claim text.