Turbocharged diesel engine, control apparatus therefor, method of controlling and controlling a diesel engine and computer program product

摘要

A diesel engine with a turbocharger is provided. The engine includes an engine body including a cylinder, a fuel injection valve, a turbine of the turbocharger, a bypass passage for bypassing the turbine, a bypass valve for opening and closing the bypass passage, an oxidation catalyst for purifying HC, and a diesel particulate filter for trapping Russ has. The apparatus includes a fuel cutoff module for stopping, when the diesel engine is in a deceleration state, a main injection of the fuel being performed on a compression stroke, a diesel particulate filter regeneration module for performing, when a predetermined diesel particulate filter regeneration condition is met, post-injection an expansion stroke to supply HC to the oxidation catalyst and regenerate the diesel particulate filter by heat generated from an oxidation reaction of HC, and a bypass valve control module for controlling the bypass valve.