Method and control system for a dual fuel engine

摘要

The present disclosure relates to a method and control system (44) for a dual fuel internal combustion engine (1). The control system (44) may comprise a release line (50) fluidly connecting a gaseous fuel system (29) to a charge air system (13). A release valve unit (48) may be provided in the release line (50). A control unit (46) may be connected to the release valve unit (48) and configured to open the release valve unit (48) when receiving information that a gaseous fuel mode is stopped such that remaining gaseous fuel from the gaseous fuel system (29) is releasable via the release line (50) into charge air in the charge air system (13).