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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTatsuo Iida, Takashi Izuo, Masahiko Asano, Hiroyuki Hattori
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The present invention offers a valve driving apparatus provided in an internal combustion engine. The valve driving apparatus drives an exhaust valve by using electromagnetic force. The exhaust valve is movable between an open position and a closed position. The valve driving apparatus includes an armature coupled with the exhaust valve, an electromagnetic coil for generating an electromagnetic force exerted on the exhaust valve, and a control means for controlling the electromagnetic force applied to the armature in the direction of the closed position of the exhaust valve when the exhaust valve is moving to the open position, in the fuel injection cut control, that is, combustion is suspended in the internal combustion engine. The present invention also offers a method for driving the exhaust valve, which comprises the steps of driving the electric current through the electromagnetic coil, biasing the armature and controlling the electromagnetic force applied to the armature.
A valve driving apparatus for driving an exhaust valve, using electromagnetic force, provided in an internal combustion engine, said exhaust valve being movable between an open position and a closed position, said valve driving apparatus comprising:
A method for driving an exhaust valve having an open position and a closed position, the exhaust valve being associated with an internal combustion engine, and the exhaust valve being coupled to an armature, the method comprising the steps of:
Dependencies are inferred from the claim text.