Control apparatus of engine having variable valve lift apparatus and a method thereof
AssigneeHyundai Motor Company
InventorByong Young CHOI
Life of this patent
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Abstract
A control apparatus of an engine may include a variable valve lift apparatus, an engine including a plurality of cylinders generating power by combustion of fuel, at least one intake valve and at least one exhaust valve for opening and closing the cylinder, a variable valve lift apparatus adjusting a valve lift of the intake valve and exhaust valve, and a controller driving the intake valve in a low lift mode by using the variable valve lift apparatus and closing the exhaust valve when one of the cylinders among the plurality of cylinders may be deactivated.
Claims12
A control apparatus of an engine having a variable valve lift apparatus, comprising:
- the engine including a plurality of cylinders generating power by combustion of fuel;
- at least one intake valve and at least one exhaust valve for opening and closing a cylinder;
- the variable valve lift apparatus adjusting a valve lift of an intake valve and an exhaust valve;
- and
- a controller driving the intake valve in a low lift mode by using the variable valve lift apparatus and closing the exhaust valve when one of the cylinders among the plurality of cylinders is deactivated.
A control apparatus of an engine having a variable valve lift apparatus, comprising:
- the engine including a plurality of cylinders generating power by combustion of fuel;
- at least one intake valve and at least one exhaust valve for opening and closing the cylinders;
- the variable valve lift apparatus adjusting a valve lift of an intake valve and an exhaust valve;
- and
- a controller driving the exhaust valve in a low lift mode by using the variable valve lift apparatus and closing the intake valve when one of the cylinders among the plurality of cylinders is deactivated.
A control method of an engine having a variable valve lift apparatus comprising at least one intake valve and at least one exhaust valve for opening and closing a cylinder provided in an engine, the variable valve lift apparatus adjusting a valve lift of an intake valve and an exhaust valve, and a controller controlling a lift of the intake valve and the exhaust valve by using the variable valve lift apparatus,
- wherein the controller executes a set of instructions for:
- determining whether the cylinder is deactivated from driving information of a vehicle;
- and
- closing the exhaust valve and driving the intake valve in a low lift mode when the cylinder is deactivated.
A control method of an engine having a variable valve lift apparatus comprising at least one intake valve and at least one exhaust valve for opening and closing a cylinder provided in the engine, the variable valve lift apparatus adjusting a valve lift of an intake valve and an exhaust valve, and a controller controlling a lift of the intake valve and the exhaust valve by using the variable valve lift apparatus,
- wherein the controller executes a set of instructions for:
- determining whether the cylinder is deactivated from driving information of a vehicle;
- and
- closing the intake valve and driving the exhaust valve in a low lift mode when the cylinder is deactivated.
Dependencies are inferred from the claim text.