Berlin, 26. June 2008 – even the automotive industry’s board members are now openly admitting that electric vehicles are on the way. With the golf twindrive, vw is now introducing a version of the electric drive that allows zero-emission operation in the city without sacrificing interurban driving. Federal environment minister sigmar gabriel and vw ceo martin winterkorn presented a first prototype at the launch of the "electric mobility fleet test" project in berlin.
Combustion engine supplements electric motor
The vehicle will be powered by an electric motor and a combustion engine. Both together can produce up to 130 kw. Unlike previous hybrid concepts, vw is not only aiming to reduce fuel consumption, but above all to achieve completely emission-free operation in urban traffic. Nevertheless, the combustion engine is integrated in such a way that it can also provide propulsion on its own in interurban traffic. The golf twindrive selects the operating mode automatically. The combustion engine only needs one gear, because up to about 120 km (120 miles) it can be driven in one gear. The electric motor thus takes over the function of the transmission, before the combustion engine takes over the drive completely at higher speeds. In the golf presented here, the engine is a tdi with 122 hp, but a tsi could also be used, which inherently provides the necessary high torque at low engine speeds.
Up to 50 kilometers on battery power
The prototype runs on first-generation lithium-ion (li-ion) batteries. Initially, the vehicle is expected to travel around 50 kilometers in electric mode. Any power outlet can be used to charge the battery. On a typical commuter route, for example from potsdam to berlin mitte, the golf twindrive is expected to get by on eight kilowatt hours and 2.5 liters of fuel per 100 kilometers.