This paper reports surveys on electric vehicles carried out by the General Energy Engineering Research Institute of Japan. Electric vehicles have not evolved because of having been incapable of sufficient performance to be competitive with gasoline fueled cars. Global environmental problems having become conspicuous, attentions have been drawn again to electric vehicles. The present flash point is in the central Los Angeles area in Southern California with very heavy air pollution, where automobile makers and distributors in that state were obligated to sell electric vehicles at a certain rate after 1998. Electric vehicles with the currently available performance have no chance of success. The vehicles have a number of problems including development of batteries, and their future is uncertain. Further promotion of their use requires strongly social consensus, assistance for technical development, and economic subsidiary measures. It may safely be said that practicable electric vehicles are the most influential theme for solving drastically the problem of automotive exhaust emission. Nothing can, however, guarantee that the Californian requirement would be complied with as being called for. Works on a long-term basis is desirable. 12 refs., 6 figs., 7 tabs.


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