DRIVE SYSTEM AND METHOD OF DRIVING A VEHICLE

摘要

The present invention concerns a drive system and a method of driving a vehicle (1). The drive system a combustion engine (2) a brake device (24) with which the vehicle (1) can be braked an electric machine (9) an energy storage (20) which is connected to the electric machine at least one assembly (22) which is operated by electric energy a planetary gear which comprises a sun wheel ( 10) a ring wheel (11) and a planet wheel holder ( 12). The drive system comprises a control unit (18) which is adapted to at an operation occasion when the vehicle (1) is in motion a driving moment (T) is demanded and the coupling member ( 15 ) is in the first position (I) based on a comparison between the demanded driving moment (T) and a necessary moment (T) which requires for operation of the assembly (22) control the combustion engine (2) and/or the brake device (24) and/or the electric machine (9) such that a desired electric effect for operation of said assembly (22) is obtained.