As a kind of automobile suspension, automobile air suspension is usually composed of an air compressor, accumulator, control unit, front and rear axle body height sensors, 3 different directions of body acceleration sensors, and 4 air spring extension acceleration sensors. The gas in the shock airbag or the air chamber plays a role in changing the state of shock absorption and stabilizing the level of the vehicle body.
At the same time, the air spring shock absorber is equipped with an exhaust valve that can be used to remove the air inside. According to the position of the airbag, there are two common air suspensions. One is to install the airbag separately on the outside and exist independently. ; One is set inside the shock absorber and is integrated with the shock absorber.
The principle is that the sensor transmits the collected signals to the control unit, and the control unit issues instructions after calculation to adjust the air spring hardness and shock absorber damping, so as to achieve the highest elastic state, and the entire reflected time course is only a few. Ten subtle, so the air suspension system can make a timely and appropriate response to every tiny movement of the wheel.
The benefits of air suspension are different from ordinary suspensions that only consist of springs and shock absorbers in the traditional sense. The height of the body, the softness, and hardness of the shock absorbers and the response speed to the longitudinal impact are all fixed. Under different road conditions, It cannot be adjusted according to the road conditions. The air suspension can be autonomously mobilized according to these conditions and make corresponding changes. In addition, when driving at high speed, the computer will also control the lowering of the body to reduce the wind resistance above the body and make the vehicle more stable.
On the contrary, its disadvantages are that the complicated manufacturing process and the numerous components that make up the product result in high sales costs. Generally, only high-end cars are equipped with air suspensions, such as Mercedes-Benz S-Class and Volkswagen Phaeton. However, the high cost will naturally lead to extremely expensive maintenance costs in the later period. The replacement of a single air shock absorber and the labor cost often cost tens of thousands of dollars.
The air suspension is controlled solely by the computer, and sometimes the back and forth changes in the height of the vehicle can easily cause the problem of deviation, and just doing the four-wheel alignment will not be able to restore the effect. In addition, it needs to be reset by the computer. Set a ride height.
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