In recent years, China's automobile production and sales of new energy rapidly. 2014 to 2015, cumulative production of new energy vehicles to 462,900, of which the production of pure electric commercial vehicles 163,600, accounting for 35%; commercial production of plug-in 32700, accounting for 7%; new energy business vehicle production accounting for nearly half. Over the same period, China's new energy vehicles to promote the type of pure electric bus has 81,300, accounting for 21%, there is a plug-in bus 25 600, accounting for 7%, pure electric vehicles dedicated 3.7 million, accounting for 10% . It is worth mentioning that the production and sales of electric vehicles dedicated also showed rapid growth trend in December last year, production reached a historical high. 2015 electric special vehicle production enterprises, the production of the top three Dongfeng Automobile, Chongqing Ruichi cars, Shaanxi through automobile.