Car buffers, also known as shock absorbers, are an important component of the vehicle suspension system. Its main function is to absorb and reduce the impact and vibration experienced by the wheels during driving, thereby improving the vehicle's driving stability and ride comfort.

The working principle of a buffer is to adjust the movement between the wheels and the vehicle body through hydraulic or pneumatic means. It can effectively control the vibration of vehicles when driving on uneven roads, prevent excessive shaking of the body, and maintain good contact between the wheels and the ground to improve handling and safety.

Common types of buffers include

1. Hydraulic shock absorber: uses the flow of liquid to absorb impact.

2. Pneumatic shock absorber: uses the compression and expansion of gas to absorb shock.

3. Electronic shock absorber: The shock absorption effect is adjusted through an electronic control system to adapt to different driving conditions.

Regular inspection and replacement of buffers are important measures to ensure the safety and comfort of car driving.