Verfahren zum Betrieb eines parallelen Hybridantriebs

摘要

The invention relates to an operational method for a parallel hybrid drive unit in a motor vehicle comprising an internal combustion engine (1) which is connected to a drive shaft via a clutch (2) and a mechanical gear box (3), and a three-phase machine (5) which is directly coupled by an armature to a secondary shaft (4) of the mechanical gear box (3) and connected to an electric energy accumulator (7) by means of a three-phase converter (6). According to the inventive method, an average time value is determined for the torque required during a specific time interval, and the output of the internal combustion engine (1) and the three-phase machine (5) is controlled in such a way that the internal combustion engine (1) provides the appropriate torque for the determined average time value and the three-phase machine (5) supplies the difference between the actual required torque and the torque delivered by the internal combustion engine. The inventive method can be used, for example, for diesel engines in heavy goods vehicles.