Method for operating direct injection internal combustion engine, involves opening exhaust valve during cylinder induction cycle so previously ejected exhaust gas in exhaust tract is partly sucked back in

摘要

The method involves carrying out a charge replacement per working cylinder via cylinder-individual, with suitable control of the inlet and outlet valves. The corresponding exhaust valve is opened during the induction cycle of a cylinder so that a previously ejected exhaust gas in the exhaust tract is partly sucked back into the cylinder.