The spring shock absorbers of different models vary significantly, and these differences are mainly reflected in the spring hardness and shock absorption damping. Among sedans, comfort sedans emphasize driving comfort, and passengers have higher requirements for road bump filtering, so they usually choose softer shock absorber springs and shock absorbers with smaller shock absorption damping, which can effectively absorb the slight vibration of the road and improve riding comfort.

In contrast, sports sedans pay more attention to handling and vehicle dynamic response. Such models are often equipped with relatively hard shock absorber springs and larger shock absorption damping to reduce body tilt and increase the handling limit. This design helps to maintain the stability of the vehicle when driving at high speeds.

In terms of SUVs and off-road vehicles, urban SUVs need to find a balance between comfort and certain passability on urban roads, so their shock absorber adjustment is usually between comfort sedans and off-road vehicles. The moderate spring hardness and damping ensure both riding comfort and certain passability.

Off-road vehicles need to cope with complex and changeable road conditions, and are usually equipped with high-strength shock-absorbing springs and shock absorbers with adjustable damping. This design can be adjusted according to different road conditions, providing sufficient support and stability to ensure that the vehicle can maintain good driving performance under various harsh conditions.

In terms of commercial vehicles, trucks are mainly used for cargo transportation and have a large load-bearing weight, so they often use a multi-leaf spring or air spring shock absorption system. Multi-leaf springs can withstand large weights, but the comfort is poor. In contrast, air springs can automatically adjust the height and hardness according to the load, which not only ensures the load-bearing capacity but also improves the comfort.

In order to provide passengers with a comfortable riding environment and a long body, large buses usually choose shock absorbers with good buffering performance. The front and rear axles may adopt different shock absorption designs to meet the specific needs of the vehicle.

Shock absorbers are mainly divided into hydraulic shock absorbers, pneumatic shock absorbers, air spring shock absorbers and inductive shock absorbers according to the different materials that produce damping. Among them, hydraulic shock absorbers are widely used in automobile suspension systems. The principle is that through the relative movement of the frame and the axle, the piston moves back and forth in the cylinder, and the oil in the shell repeatedly flows into another inner cavity through narrow pores. The friction between the liquid and the inner wall and the friction between the liquid molecules form a damping force.

The pneumatic shock absorber is equipped with a floating piston and a closed air chamber at the bottom of the cylinder, which is filled with high-pressure nitrogen. The working piston has a compression valve and an extension valve that change the channel cross-sectional area with the movement speed. When the wheel bounces, the reciprocating motion of the working piston generates an oil pressure difference, and the valve generates a damping force on the pressure oil to attenuate the vibration.

The air spring shock absorber, that is, the air suspension system, uses air springs instead of traditional coil springs. The control unit controls the air compressor to work according to the sensor signal, so that the air spring automatically expands and contracts, and the height of the vehicle body automatically adjusts according to the road conditions.

In addition, there are two types of inductive shock absorbers: magnetorheological and electrorheological. They detect road conditions and driving conditions through sensors, and use the changes in electromagnetic fluid density and current to make the inductive shock absorber react instantly to suppress vibration and keep the vehicle body stable.

In summary, different models choose different spring shock absorbers according to performance requirements to achieve the best driving effect. This personalized design not only improves the comfort and handling of the vehicle, but also enhances the vehicle's adaptability under various road conditions.