СПОСОБ ЭКСПЛУАТАЦИИ ДВИГАТЕЛЯ С СИСТЕМОЙ РЕЦИРКУЛЯЦИИ ОТРАБОТАВШИХ ГАЗОВ (ВАРИАНТЫ)

摘要

Methods and systems are provided for operating an engine including a DEGR system during start-stop and DFSO conditions. In one example, the DEGR cylinder may be deactivated prior to deactivating the non-DEGR cylinder group and stopping the engine, to purge EGR from the intake system.