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US 2010/0300386 A1Published application
Control apparatus of internal combustion engine for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoshikazu Asami, Toshio Inoue, Masakiyo Kojima, Takashi Suzuki
Life of this patent
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Abstract
A control apparatus for an internal combustion engine of a vehicle sets the overlap amount of an intake valve and an exhaust valve small when the engine is idling and the vehicle is stopped. Also, the control apparatus sets the overlap amount large using normal control when the vehicle is traveling, even if the engine is idling.
Claims9
A control apparatus for an internal combustion engine of a vehicle, comprising:
- an intake passage that is communicated with a combustion chamber;
- an exhaust passage that is communicated with the combustion chamber;
- an intake valve that selectively opens and closes communication between the combustion chamber and the intake passage;
- an exhaust valve that selectively opens and closes communication between the combustion chamber and the exhaust passage;
- a variable valve timing mechanism that is provided for at least one of the intake valve or the exhaust valve and adjusts valve timing;
- and
- a valve timing control device that controls the variable valve timing mechanism to set the valve timing to a vibration-reducing valve timing when the internal combustion engine is idling and the vehicle is stopped.
4 more elements
A control apparatus for an internal combustion engine of a vehicle, comprising:
- an intake passage that is communicated with a combustion chamber;
- an exhaust passage that is communicated with the combustion chamber;
- an intake valve that selectively opens and closes communication between the combustion chamber and the intake passage;
- an exhaust valve that selectively opens and closes communication between the combustion chamber and the exhaust passage;
- a variable valve timing mechanism that is provided for at least one of the intake valve or the exhaust valve and adjusts valve timing;
- and
- a valve timing control device that makes the overlap amount of the intake valve and the exhaust valve from an exhaust stroke through an intake stroke when the internal combustion engine is idling and the vehicle is stopped smaller than the overlap amount when the internal combustion engine is idling and the vehicle is traveling.
4 more elements
A control apparatus for an internal combustion engine of a vehicle, comprising:
- an intake passage that is communicated with a combustion chamber;
- an exhaust passage that is communicated with the combustion chamber;
- an intake valve that selectively opens and closes communication between the combustion chamber and the intake passage;
- an exhaust valve that selectively opens and closes communication between the combustion chamber and the exhaust passage;
- a variable valve timing mechanism that is provided for at least one of the intake valve or the exhaust valve and adjusts valve timing;
- and
- a valve timing control device that makes the overlap amount of the intake valve and the exhaust valve from an exhaust stroke through an intake stroke when the internal combustion engine is idling and the vehicle is stopped larger than the overlap amount when the internal combustion engine is idling and the vehicle is traveling.
4 more elements
Dependencies are inferred from the claim text.