Hybrid car or vehicle is kind of vehicle that the power of its engine would supply from two or more energy convertors(like chemical to electrical and electrical to mechanical). In recent years there are strong efforts for designing and manufacturing hybrid cars and vehicles vehicles in variation of capacities and capabilities by the way some of them have been produced in big scale .

By this much increasing population in the world and pollution in big cites are so higher than standards. We all know that this much pollution accordingly is depends on the number of cars and vehicles commuting in cites. Based on some statistic from environmental organization one of the branch of presidential campaign its measurements is 81.6 per cent for cars buses, motorbikes, taxies and so on .

For the price of gas and petrol and less consumption of hybrid cars(there are 3 times less than usual vehicles) gradually they will be economically approved in near future .

Also according to the increasingly the importance of environmental aspects and regarding standards costs and so on, the trend of moving through these kind of vehicles are accelerating. TKCCO for the first time as engineering and researching company in IRAN have started a projects of manufacturing of new electric hybrid bus .