What is the principle of an air suspension system?
2 Answers
The principle of an air suspension system is: to use an air compressor to form compressed air, and then deliver the compressed air to the air chambers of the springs and shock absorbers, thereby changing the vehicle's height. Level sensors are installed near the front and rear wheels. Based on the output signals from these level sensors, the air suspension control unit determines changes in the vehicle's height and then controls the compressor and exhaust valves to compress or extend the springs, achieving a damping effect. The suspension system is the general term for all force-transmitting connection devices between the vehicle's frame and the axles or wheels. Its function is to transmit forces and torque between the wheels and the frame, buffer the impact from uneven road surfaces transmitted to the frame or body, and dampen the resulting vibrations to ensure smooth driving.
The principle of air suspension is quite interesting. I imagine it as replacing traditional hard springs with a bunch of air bags. There are air springs installed under the vehicle, pressurized by a small compressor. When sensors detect different road conditions or height changes, the computer quickly adjusts the air volume. For example, it inflates more when going over bumps to cushion the impact, and deflates at high speeds to enhance stability. This system also allows you to adjust the height—lowering the body when parking or raising it for off-road use, making it very flexible. The advantage is a much more comfortable ride, especially reducing fatigue on long drives, unlike steel springs that can make your bones ache from the vibrations. Of course, it requires regular checks for leaks to maintain airtightness, and the maintenance is slightly more involved than traditional suspension systems.
