How do airbags help a tow vehicle?
It has been stated here many times that airbags do not increase your vehicles towing(cargo) capacity. So why is the usage of air bags so common? Do they shift the weight from back to front? Do they st...
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Air bags, or any auxiliary springs in PARALLEL will change the spring rate curve
and travel curve. In series, the lower rated will do the work until it compresses
to match the lowest rating of the bigger spring
In parallel and aired up a small bit...it will take some load off of the leaf
springs.
Then both of these springs will be in a lower rate (poundage) portion of their
respective curves
Meaning they will ride a bit softer until they compress into a higher rate portion
of their curve
and travel curve. In series, the lower rated will do the work until it compresses
to match the lowest rating of the bigger spring
In parallel and aired up a small bit...it will take some load off of the leaf
springs.
Then both of these springs will be in a lower rate (poundage) portion of their
respective curves
Meaning they will ride a bit softer until they compress into a higher rate portion
of their curve
