Patent attributes
An air suspension includes a plurality of air spring assemblies that each include a piston airbag and a primary airbag mounted over the piston airbag. The primary and piston airbags each have a variable volume that is controlled independently of the other for active suspension control. Each piston airbag includes a piston intake valve and a piston exhaust valve. Each primary airbag includes a control valve that is operable to supply and exhaust air from the corresponding primary airbag. The control valves and piston intake valves operate independently of each other. A compressor supplies air to a supply reservoir which is used to supply air to the primary and piston airbags. The compressor includes a bypass loop that directs exhausted air to a compressor inlet when the compressor is running.
