| 摘要 |
<p>An active suspension system for a vehicle including at least one fluid operated ram (14) having a cylinder (52) and a main piston (54) mounted therein for reciprocating movement, control means for controlling an equilibrium position of the piston (54) in the ram (14) in response to lateral acceleration of the vehicle in order to counter the effects of body roll of the vehicle, and wherein the ram (14) includes shock absorbing means (70) for permitting rapid movement of the piston (54) from the equilibrium position when operating fluid in the ram (14) is subjected to transient increases in pressure. For each ram (14), first and second working chambers (65, 67) are defined in the cylinder (52) on opposite sides of the piston (54) and the piston (54) includes at least one damping passage therethrough and valve means to control flow of operating fluid through said damping passage when the fluid in one or the other of the working chambers (65, 67) is subjected to transient increases in pressure.</p> |
