Abstract: The description relates to a control strategy for assisting regeneration of a particulate filter for a turbocharged diesel V-engine. The engine has two cylinder banks, a first cylinder bank coupled to a first exhaust pipe and a second cylinder bank coupled to a second exhaust pipe. The two exhaust pipes are in communication with one another by a connecting pipe and have two exhaust gas turbochargers each connected in a respective one of the exhaust pipes. The first exhaust pipe being provided with an exhaust shut-off valve in order to operate the engine either with a single turbocharger when the valve is in its closed position or with the two turbochargers when the valve is in its open position. The first exhaust pipe is connected to a diesel particulate filter (DPF) and the second exhaust pipe is connected to a diesel oxidation catalyst and to the DPF.

Abstract: The description relates to a control strategy for assisting regeneration of a particulate filter for a turbocharged diesel V-engine. The engine has a common-rail fuel injection system 6, 7 and two cylinder banks 1,2, each cylinder bank 1, 2 having a respective exhaust pipe, designated the low pressure (LP) exhaust pipe 3 and the high pressure (HP) exhaust pipe 4. The two exhaust pipes 3, 4 are in communication with one another by a connecting pipe 5 and have two exhaust gas turbochargers 30, 40 each connected in a respective one of the exhaust pipes. The LP exhaust pipe 3 being provided with an exhaust shut-off valve 80 in order to operate the engine either with a single turbocharger 40 when the valve 80 is in its closed position or with the two turbochargers 30, 40 when the valve 80 is in its open position. The LP exhaust pipe 3 is connected to a diesel particulate filter (DPF) 100 and the HP exhaust pipe 4 is connected to a diesel oxidation catalyst (DOC) 90 and to the DPF 100.