Abstract
In the HCCI combustion, it is known that the influence of the combustion characteristics by the fuel property is large, and it is one of the issues to practical use. Therefore, to perform the three-dimensional combustion calculated using the reduced reaction scheme can correspond to a multi-component fuel authors constructed so far, and we studied the combustion control method corresponding to the ignition timing changes due to the fuel component. As a result of this study, the coolant temperature of cylinder head hasmore influence than that of liner. So, the possibility of combustion control was shown.