Control apparatus of engine having variable valve lift apparatus and a method thereof

摘要

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.

主权项

1. 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 is configured to execute:
determining whether the cylinder is deactivated; andclosing the exhaust valve and driving the intake valve in a low lift mode when the cylinder is deactivated, wherein the controller is configured to control opening timing of the intake valve to be equivalent to a time that a piston reaches to top dead center or bottom dead center of the piston reciprocating in the cylinder.