Next is the interior. The structure of the vehicle is very simple. The basic units are frame, plastic parts, shock absorber, battery, controller and motor. The quality of the frame is particularly critical, and many users do not care much about the quality of the frame, because this part is difficult to observe. However, the quality of the frame directly determines the safety performance of the vehicle. Here are some methods to verify the frame. Firstly, the welding level of the frame inside the vehicle plastic parts is observed. If there are false welding and de-welding, the quality of the frame is not ideal. Secondly, observe whether there are any signs of rust on the frame, because in order to prevent rust, a process called electrophoresis is needed. In order to control the cost, many frame manufacturers simply spray black paint without electrophoresis. If there is rust on the new car, it means that the electrophoresis quality of the frame is abnormal. Finally, the test run, high-speed driving and emergency braking, to see whether there is left-right shaking frame, if the shaking is very strong, indicating that the quality of the frame is not up to standard, there are potential safety hazards. Because the market of electric vehicles is mixed, and the frame is hidden in the vehicle can not be directly inspected, so many manufacturers do not strictly control the quality of the frame. Choosing a good frame is very important for the whole car. There is also a simple way, if the car takes off the battery, you can hold up to try the weight, the heavier that the more solid the material used in the car, the greater the possibility of better safety performance.
From the network