New energy vehicles have attracted much attention in recent years. First of all, it has the advantage of environmental protection, pure electric vehicles zero tailpipe emissions, reduce pollution to the environment, in line with the current green travel concept. Secondly, the use of low-cost, electricity costs compared to gasoline costs are much cheaper, and new energy vehicles relatively few maintenance projects, maintenance costs are also low. In terms of performance, many new energy vehicles accelerate rapidly, the power output is direct, and the driving experience is unique. In addition, the national and local governments have many policy support for new energy vehicles, such as purchase subsidies, free parking, license plate concessions, etc., which greatly reduces the threshold for purchase and use.