APPARATUS AND METHOD FOR CONTROLLING A DIESEL ENGINE OPERATING WITH PREMIXED COMBUSTION

To decrease combustion noise, etc. of a diesel engine(10) at the time of transition to premixed combustion, the cylinder pressure of the diesel engine (10) is detected, and a parameter which is related to change in the cylinder pressure of the diesel engine is computed on the basis of the detected cylinder pressure. The fuel injection timing at the time when combustion in the diesel engine is switched to premixed combustion is controlled such that the parameter falls within a target range.