Abstract
A series hybrid electrical vehicle with a bio fuel diesel engine generator, named as bio EV, is proposed in this paper. The diesel engine rotates an electric generator using straight or waste bio fuels such as sun flower oil. The hybrid electric vehicle is able to run using the generated electricity. The electric generator is also able to charge the electricity to batteries. It is expected to realize a long distance running electrical vehicle, and also a carbon neutral system. This paper will discuss the driving system of the bio EV.