Starter-generator device for internal combustion engines and method for operating the device

This application claims the priority of German patent Document 100 47 755.0, filed Sep. 27, 2000, the disclosure of which is expressly incorporated by reference herein. A device with a starter-generator for internal combustion engines, the combustion engine having a centrifugal mass for stabilizing its smoothness of running, with at least one first nonpositive clutch and a flywheel generator, which can be actuated by means of an electrical energy source and is in effective connection with a selectable gearbox, the nonpositive clutch being provided between the flywheel generator, which can be actuated by means of an electrical energy source, and the combustion engine, and the flywheel generator forming the centrifugal mass of the combustion engine.