Engine stop control device
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorsHitoshi Motose, Hidetoshi Ishigami
Life of this patent
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Abstract
A control system for a multiple cylinder, direct fuel injected, spark ignited, internal combustion engine that protects the fuel injectors by precluding the possibility of firing of the spark plugs at a time when a fuel injector is open and if the kill switch has been turned on. The control circuit precludes the disabling of the ignition circuits until all fuel injectors of the engine are in their closed positions.
Claims8
A fuel injected, spark ignited, internal combustion engine having a cylinder, a fuel injector for injecting fuel into said cylinder and having an injection valve operable between an opened position and a closed position, a spark plug for firing a charge in said cylinder, an ignition circuit for firing said spark plug, a kill switch for disabling said ignition circuit for stopping said engine, and control means for precluding the disabling of said ignition circuit when said kill switch is closed until said injection valve is closed.
A method of operating a fuel injected, spark ignited, internal combustion engine having a cylinder, a fuel injector for injecting fuel into said cylinder and having an injection valve operable between an opened position and a closed position, a spark plug for firing a charge in said cylinder, an ignition circuit for firing said spark plug, a kill switch for disabling said ignition circuit for stopping said engine, said method comprising steps of precluding the disabling of said ignition circuit when said kill switch is closed until said injection valve is closed.
Dependencies are inferred from the claim text.