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Air brakes and suspension

  • 23-06-2014 07:09AM
    #1
    aidanki
    Registered Users, Registered Users 2 Posts: 1,287 ✭✭✭


    I guess im going to go a bit off topic here mods feel free to move if necessary

    anybody got any links to an air suspension/air bag setup on a truck, something Im researching at the min


Comments

  • #2
    darragh o meara
    Registered Users, Registered Users 2 Posts: 3,236 ✭✭✭darragh o meara


    What do you need to know?


  • #3
    aidanki
    Registered Users, Registered Users 2 Posts: 1,287 ✭✭✭aidanki


    darragh o meara wrote: »
    What do you need to know?

    how the whole thing works really both brakes and suspension

    does the air hold the brakes off and a spring activate the brake or is that just something i misread somewhere?

    when you have air over hydraulic brakes is it the same setup or something else?


  • #4
    DublinDilbert
    Registered Users, Registered Users 2 Posts: 5,421 ✭✭✭DublinDilbert


    aidanki wrote: »
    how the whole thing works really both brakes and suspension

    does the air hold the brakes off and a spring activate the brake or is that just something i misread somewhere?

    when you have air over hydraulic brakes is it the same setup or something else?

    Yea once the vehicle is above a certain weight (3.5 tons AFAIK) the brakes need to be normally closed and require air to release them.

    There's a variety of air suspension systems out there, are you looking at trucks or lighter vehicles? Many on motor homes might just be open loop and the driver can adjust for the load in the vehicle using manual valves/gauges.

    After that there's some with mechanical levelling valves to allow air in/out of the air springs and maintain a constant ride height. Finally there's electronically controlled suspensions that will use height sensors and allow a variety of different heights to be set by the driver. These will use some sort of pneumatic valve manifold where each valve is controlled by an electrical solenoid.


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