Patent ID: 7693646
Filing Date: 2010-04-06
Classification: F02D,Y02T

Abstract:
1. A control device of an internal combustion engine having an injector that supplies fuel into a combustion chamber and a valve-actuating mechanism capable of changing an opening characteristic of at least one of an intake valve and an exhaust valve, and that generates power by burning a mixture of fuel and air in the combustion chamber, comprising: an intake pressure detection device that detects intake air pressure upstream of the combustion chamber; an in-cylinder pressure detection device that detects in-cylinder pressure in the combustion chamber; a controller that causes the injector to inject an initial amount of fuel determined so that a first air-fuel ratio of a first mixture in the combustion chamber is higher than a target value in accordance with the anticipated amount of air estimated by the controller, and causes the injector to inject a correction amount of fuel determined based on the initial amount of fuel and the amount of air aspired into the combustion chamber calculated by the controller so that a second air-fuel ratio of a second mixture in the combustion chamber corresponds to the target value.