Patent ID: 7104255
Filing Date: 2006-09-12
Classification: F02D

Abstract:
1. A method of controlling an internal combustion engine that includes: a port injection valve that injects fuel into an intake passage of the internal combustion engine; and a direct injection valve that injects fuel directly into a combustion chamber of the internal combustion engine, the method comprising: determining whether operating conditions of the internal combustion engine during uniform combustion are satisfied, the operating conditions including a specified load of the internal combustion engine and a specified engine speed of the internal combustion engine, the specified load being defined as a high load based on a maximum torque of the internal combustion engine, the specified engine speed being defined as low to medium speeds based on a maximum engine speed of the internal combustion engine; and injecting fuel from both the port injection valve and the direct injection valve if it is determined at the determining that the operating conditions are satisfied, and injecting fuel at a predetermined ratio of a whole amount of fuel injection from the direct injection valve during a compression stroke.