抄録
Electric vehicles, hybrid vehicles and fuel cell vehicles are expected as the one of the low-emission and high-efficiency vehicles to improve global warming problems. This paper describes the high efficiency of the electric power train in EVs, hybrid vehicles and fuel cell vehicles, and also describes feature, problems to be solved and technical view on these vehicles. In the present technical conditions, we will be not able to replace conventional internal combustion engine vehicle with EVs, due to power less batteries. We will also have many hurdles to jump over before we put fuel cell vehicle to practical use, and have to choose hybrid vehicles as the practical high efficiency vehicle to reduce the CO_2 emission in the tail pipes. So, this paper describes hybrid system configurations and state of the art of main components of hybrid vehicles and future of their technologies. And this paper also describes possibility of the plug-in hybrid vehicle that is expected to become popular in Europe and U. S.
