Vehicle comprising an exhaust purification device for a compression ignition type internal combustion engine

摘要

In an internal combustion engine, the engine is formed so that an output of an electric motor (27) can be superposed on an output of the engine. In the engine exhaust passage upstream of the NO X storage catalyst (14), an SO X trap catalyst (13) able to trap the SO X contained in the exhaust gas is arranged. When regenerating the SO X trap catalyst (13), the vehicle drive power from the engine and the vehicle drive power from the electric motor (27) are adjusted so that the SO X concentration in the exhaust gas flowing out from the SO X trap catalyst (13) becomes less than a predetermined SO X concentration during the regeneration period.