Vehicle driving system

The present invention relates to a vehicle driving system in which one of front wheels (2) and rear wheels (4) is driven by an internal combustion engine (3) and the other thereof is driven by an electric motor (5). The system is comprised of: a generating apparatus (10) that generates electric power by rotation of the internal combustion engine (3); the electric motor (5) driven by electric power outputted from the generating apparatus (10); and a control unit (6) for controlling output power of the generating apparatus (10) in accordance with a driving force requested from a vehicle and controlling the electric motor (5). The generating apparatus (10) comprises a tandem generator equipped with a charge function for charging a vehicle-mounted battery (9) and a power supply function for driving the electric motor (5).