Patent ID: 8843294
Filing Date: 2014-09-23
Classification: F01L,F02D,F02N,Y02T

Abstract:
1. An apparatus for controlling a variable valve timing mechanism that changes a closing timing of an intake valve of an internal combustion engine, comprising: a first control unit configured to control the closing timing of the intake valve in an intake stroke of a first cylinder of a plurality of cylinders, which first cylinder goes into the intake stroke first of the plurality of cylinders at a time of startup of the internal combustion engine, so as to be a first closing timing on a retardation side from an intake bottom dead center; and a second control unit configured to change the closing timing of the intake valve to a second closing timing at which the intake valve is closer to the intake bottom dead center than at the first closing timing, from after the time of startup of the internal combustion engine until the closing timing of the intake valve in a second intake stroke for another cylinder of the plurality of cylinders.