Cross-linked variable piston air suspension

摘要

An air suspension includes first (16a) and second (16b) air spring assemblies (16) that each include a piston airbag (28a,28b) and a primary airbag (30a,30b). A first fluid connection (60) connects one of a first piston airbag (28a) and a first primary airbag (30a) of the first air spring assembly (16a) to one of a second piston airbag (28a) and a second primary airbag (30b) of the second air spring assembly (16b). A second fluid connection (62) connects the other of the first piston airbag (28a) and the first primary airbag (30a) to the other of the second piston airbag (28b) and the second primary airbag (30b). Air flow through the first (60) and second (62) fluid connections is passively controlled solely in response to road load inputs to reduce roll stiffness and improve articulation.