Operating mode switching control method for direct fuel injection IC engine using adjustment of ignition timing angle and multiple injection of fuel at least partially within compression phase

摘要

The control method has the ignition timing angle for the IC engine adjusted for preventing a rapid variation in the engine torque when the engine is switched from the normal operating mode to a free-running operating mode, with the fuel injected into at least one engine cylinder via a multiple injection, such that at least part of the fuel is injected during the compression phase (K). An independent claim for a control device for operating mode switching in an IC engine is also included.