| 摘要 |
<p>A suspension system (e.g. for a vehicle) comprises a gas spring (1) and a mass (e.g. the vehicle body) mounted on the spring for damped oscillating movement. Gas spring has a first gas chamber (2) of variable volume which is compressible and expansible by oscillations of the spring, and a second rigid gas chamber (3) which communicates directly with the first chamber (1) via a rapidly openable and closable valve (5, 6). The system incorporates means (11, 12) for detecting a function of changing compression of the first chamber (1). These detection means are operatively associated with the valve (4, 5) to affect closure or opening thereof when the function passes through predetermined values. Opening of the valve when there is a pressure difference thereacross serves to dissipate energy in the subsequent equalising process, and the changes in stiffness of the spring serve to de-tune the system.</p> |
