how the air suspension of a vehicle works?

Answer 1

Compressed air is pumped into a tank from an engine driven compressor. It is stored there until the air systems request it.

The air suspension system consists of an Air cushion (or bag) at each wheel, a vehicle height sensor between the axles and the body, and the stored air. there are also several valves but for simplicity I'll ignore those.

The sensor detects the height between the chassis and the body, if it is too low then more air is put into the air bags to inflate them, thus raising the body.

If the height is too high some air is let out and the body lowers.

All the time the engine is running this is an automatic procedure.

Most trucks have a manual over ride control that the driver can use to make loading/unloading easier

Answer 2

In a car or a pick-up truck, it works exactly the same as the "gas shocks" currently installed on your vehicle -- they come from the factory that way unless you special order your vehicle with "air assist shocks". The shocks are filled with regular air instead of an inert gas. The bonus to using "air assist shocks" instead of "gas shocks" is that when you need the extra boost of heavier duty shocks, you can put more air into the "air assist shocks" -- such as when you have an extra heavy load in the trunk of your car. To do this, you simply pull up to the air compressor at any filling station and hook the air nozzle onto a special vavle in the trunk of your vehicle. You add air to the "air assist shocks" until your vehicle sets level with it's load in the trunk. When you unload the vehicle, you vent the excess air out of the "air assist shocks" by pressing down on the valve -- just like letting the excess air out of your tires.

In heavy-duty class 8 vehicles (semi-trucks), the air suspension is very different. The class 8 vehicles do have shocks, but they are much larger and very different from a car or a pick-up truck's shocks. The drive axles (the two sets of axles at the back of the truck, not including the trailer) are "air ride". The steering axle (at the front of the truck) may or may not be "air ride" depending on the model of truck. In either case, next to where the shocks sit between the frame and the axle, there is also a large "air bag" for each shock. A semi-truck has an air compressor built onto the side of the motor which provides air not only for the "air ride" system, but also the "air brakes" on the truck and the trailer. If the trailer happens to be "air ride" as well, the truck's air compressor provides the air to that system, too. While the single compressor provides air for both systems, the two systems are completely independent of one another.

Hope that helps. :)

Answer 3

There is a air compressor system that either adds or removes air from special shocks to maintain a level ride through the use of heigth sensors. The more load,the more air needed,The less load,the less air needed.

Answer 4

its all hot air to me