After much expectation ,Volvo’s hybrid bus has finally hit the roads in Sweden and is carrying passengers now. This hybrid bus provides major fuel savings as a result of electric drive and shutting off the diesel engine at bus stops.
The jinx of hybrid technology not used in heavy vehicles have been broke by the Volvo hybrid bus. According to the company, the same hybrid technology can be used with many heavy vehicles such as trucks, construction equipment etc….
This hybrid bus is equipped with two engines, a diesel engine and an electric motor. The bus uses both the engines. When the bus brakes, the braking energy is recycled and stored in a battery mounted on the roof of the bus. This energy is then used to drive the electric motor. When the doors open at the bus stop, the diesel engine is shut off entirely. The bus then starts solely powered by the electric motor and first when the bus reaches a speed of 15-20 km/h, the diesel engines starts automatically.
This bus helps in reducing green house gas carbon dioxide by 30%. The emission of nitrous oxide also declines upto 40%. It is expected that the company will start its series of hybrid bus production in 2010. The company has already got orders from Switzerland and Luxemburg. The company has named the hybrid buses as Volvo 7700 hybrid bus.