Patent ID: 7377248

Claim:
An engine starting control system of an internal combustion engine including: a plurality of cylinders, each of which has an intake passage injection valve for injecting fuel into an intake passage, a cylinder injection valve for injecting fuel into a cylinder, and an ignition plug for igniting an air-fuel mixture in a cylinder; and engine stopping means for performing an engine stop of the internal combustion engine when a predetermined condition is satisfied in an operating state of the internal combustion engine, the system comprising: combustion stroke prediction means for predicting a combustion stroke that a cylinder of said internal combustion engine reaches when said internal combustion engine comes to an engine stopped state by said engine stopping means; preliminary fuel injection means for injecting fuel of a predetermined amount from said intake passage injection valve into the intake passage just before said internal combustion engine comes to an engine stopped state, in an expansion stroke cylinder in which a combustion stroke predicted by said combustion stroke prediction means is an expansion stroke; and engine starting means for performing, in said expansion stroke cylinder, an engine start of the internal combustion engine in an engine stopped state by injecting fuel from said cylinder injection valve into the cylinder and igniting an air-fuel mixture in the cylinder by said ignition plug.