电动汽车分类及优缺点（Classification and advantages and disadvantages of electric vehicles）.doc

电动汽车分类及优缺点（Classification and advantages and disadvantages of electric vehicles） Six major categories of electric vehicles and their advantages and disadvantages Electric vehicles include hybrid vehicles (HEV), pure electric vehicles (BEV), fuel cell vehicles (FCEV), hydrogen engine cars, and gas cars, alcohol ether cars, and more Hybrid vehicle A hybrid is a type of vehicle that uses conventional fuel and is equipped with an electric motor / engine to improve low speed power output and fuel consumption. According to different fuel types, the main can be divided into gasoline hybrid and diesel hybrid two. At present, the mainstream of hybrid vehicles in the domestic market is gasoline hybrid, while the diesel hybrid vehicles in the international market are developing very fast. Advantages: 1. After adopting the hybrid power, the maximum power of the internal combustion engine can be determined according to the power required by the average. At this time, it is under the optimum working conditions with low fuel consumption and less pollution. Need high-power internal combustion engine power shortage, by the battery to supplement; less load, surplus power can power battery, because internal combustion engine can work continuously, battery constantly charging, so the same trip and ordinary cars. 2, because there is a battery, you can easily recycle braking, downhill, idle energy. 3, in the bustling urban areas, can be shut down internal combustion engine, driven by the battery alone, to achieve zero emissions. 4, with an internal combustion engine, it is very convenient to solve the problems of electric energy, air-conditioning, heating, defrosting and other pure electric vehicles. 5, you can use the existing gas station refueling, do not have to invest. 6, the battery can be maintained in good working condition, no excessive charge, release, extend its service life, reduce costs. Disadvantages: long distance, high speed, basically can not save oil. Blade Electric Vehi