When you hear a car equipped with air suspension, then most of this car is a car close to a million, in the early years it is true that most of the models equipped with air suspension are Range Rover, 7 Series, S class such administrative models, but the air suspension Most people understand that it is a suspension that can adjust the height of the body, but the air suspension is not an air suspension, today I will take you to understand what is the air suspension.
Air suspension
The suspension composition of a car is not as simple as imagined, in addition to the spring and shock absorber that everyone knows, a bunch of parts are also needed to cooperate, the simple understanding is that when the vehicle encounters bumps, the spring can alleviate the vehicle bumps, and the difference between the air suspension and the suspension of the ordinary model is that the medium that supports the vehicle and relieves the bumps of the vehicle has changed, and the air suspension uses the air bag as the medium to relieve the bump, not the spring, and the air bag is hit to a certain air pressure to play the role of supporting the vehicle. Since the need to inflate must have other parts to assist, the air suspension will be equipped with high-pressure cylinders, compressors, etc., the supporting airbags are generally rubber materials, but this rubber is vulcanized to enhance durability, so the air suspension is not an air suspension, like shock absorbers these still exist, strictly speaking, it should be called air springs.
class
Air spring can be roughly divided into two kinds, bladder air spring and membrane air spring, the difference between the two is that the bladder air spring will have an iron ring in the middle, which makes the bladder air spring and the traditional spring feel closer, but after adding the iron ring in the middle, the air spring will become two sections or even more, although the more the number of sections The better the elasticity, but the sacrifice of the vehicle's lateral support force, in addition to the need for higher air pressure to support.
The advantage of membrane air spring is that it can also support the vehicle at a relatively low air pressure, and the membrane air spring also has stronger torsional resistance, if compared with the bladder air spring, the membrane air spring will have stronger comfort and support in the same environment and the structure will be simpler, the membrane gas spring uses the lower sealing design, the adjustable height range is also larger, and the service life is longer.
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The main purpose of the air suspension is to improve the lack of traditional metal springs, by adjusting the air pressure in the air bag to achieve the suspension soft and hard purpose, in addition to the basic soft and hard air suspension also has the function of adjusting the height, especially some SUV models need to be raised to improve the passability, at this time some careful people may ask, the vehicle increases the pressure in the air bag will also increase with the height, when reaching the highest, the vehicle suspension will not become as hard as iron, but the air suspension is not what you think. Although the elevated vehicle will make the airbag pressure become higher, but even if it rises to the highest air suspension, the hardness will not increase much, the air suspension also has a more powerful function is the level, if it is an ordinary car when the back seat of the car is full of people, from the outside is the state of the head, if it is the air suspension model will be through the front and rear wheels of the air pressure, to balance the vehicle attitude, so that the vehicle is always in a horizontal state.
Pros and cons
First of all, the advantages of air suspension is that when the vehicle is driving on the bumpy road can ensure the comfort of the vehicle, but also has enough support, in the SUV model can also improve the height of the body to obtain passability, not only in some luxury cars, the air suspension is also used to the extreme, the manufacturer uses the air spring can adjust this feature through the air pressure, the manufacturer will install a camera on the car, the purpose is to constantly scan the road in front of the road, after scanning will transmit information to the vehicle computer, The computer will adjust the air pressure of the air suspension according to the road conditions to improve the comfort of the vehicle, when the vehicle is driving at a high speed, the air suspension air pressure can also be adjusted according to the speed, and the vehicle can achieve the purpose of reducing by deflation, and improve the stability of the vehicle when driving at high speed.
The following is talking about the shortcomings of the air suspension, first of all, the maintenance and repair problem, because the air bag of the air suspension is injected with gas through the gas cylinder and the air compressor, which will inevitably have moisture, and the air bag will accelerate the aging rate of rubber for a long time in a watery environment, although the manufacturer has also found this problem, and installed a desiccant, so that the air must go through a desiccant before entering the air bag, so that although the moisture problem can be solved, But long-term use plus the effect of the desiccant to reduce the life of the airbag will also be affected, in addition to itself, the outside world will also cause damage to the airbag, such as the vehicle in the driving will inevitably press some small stones, some stones are very sharp, but the bullet to the airbag when the slight may scratch a little to form a slow gas, serious may directly let the airbag scrapped, in addition to the airbag, cylinders and compressors and a series of accessories, if there is a problem maintenance is a big cost.
brief summary
Air suspension should be nearly 10 years without a configuration of the lowering, the air suspension itself has many advantages, but this configuration will not be as slowly as other configurations, first of all, the air suspension will have a compressor, and gas cylinders and other accessories combined together to call the air suspension, and these accessories also need to be installed in the car, which requires space requirements, and then there is a cost problem, the air suspension to today has always been the representative of luxury cars or even standard, If this configuration is lowered to the 200,000-level car is indeed very unrealistic, if this consumer is the happiest, you can get the same driving texture as the million-level model, but the car company will never think so, if you do this 200,000 models and 1 million models at least the driving texture of this difference is not very big, this is also the 20 to 30 level of high-end models will choose variable suspension or even electromagnetic suspension reasons, if the future trend is electric vehicles, Then this configuration may also be a little downgraded to lower-priced models to increase the driving texture.
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