METHOD AND CONTROL DEVICE FOR TORQUE-NEUTRAL SWITCHING BETWEEN TWO ENGINE OPERATING STATES IN AN INTERNAL COMBUSTION ENGINE WITH DISCONNECTABLE CYLINDERS AND AT LEAST ONE CONNECTABLE COMPRESSOR

摘要

The present invention relates to a supercharging engine (20) having an intake pipe (26), a plurality of cylinders and a connectable, particularly electrically driven compressor (18), from a first engine operating state to a second engine operating state To a method for torque-neutral switching and to a corresponding control unit (22). In the first engine operating state, the engine is operated in a supercharged state without the connectable compressor (18). In order to switch from the first engine operating state to the second engine operating state, the intake valves and / or the exhaust valves of one or more cylinders are stopped. The connectable compressor 18 is at least temporarily connected during a plurality of strokes in which the engine 20 is throttled to increase the pressure immediately before the intake valve and / or exhaust valve stops in the first engine operating state. Thereby, a further reinforcement of the pressure in the intake pipe 26 is at least partly realized by the connectable compressor 18. In the second engine operating state, the intake valves and / or the exhaust valves of one or more cylinders are stopped.