Patent ID: 6910461
Filing Date: 2005-06-28
Classification: F01L,F02D,F02M,F02P,Y02T

Abstract:
1. A control apparatus for an internal combustion engine, the engine generating power by combusting mixture of air and fuel, wherein the apparatus performs a knock control for adjusting an ignition timing, at which the air-fuel mixture is ignited, and a variable valve actuation control for adjusting a valve actuation, which is actuation of a valve of the engine, in accordance with the occurrence of knocking in the engine, wherein the apparatus determines the magnitude of a change in the ignition timing due to adhesion of deposits in the engine based on the results of the knock control, and wherein, based on the magnitude of the change in the ignition timing, the apparatus changes a set value of the valve actuation in the variable valve actuation control.