| 摘要 |
<p>A stabilizer bar (D) for controlling the roll of an automotive vehicle has left and right sections (16,18), each provided with a torsion rod (24) and a torque arm (26). The torsion rods are aligned along a transverse axis (X) and attached to a structural component (B) of the vehicle, while the torque arms are connected to the left and right control arms (2) of the vehicle's suspension system (A). In addition, the bar has a coupling (20) between the torsion rods of the two sections and a valve (22) connected to the coupling, all for controlling the torsional stiffness of the bar. When one torsion rod rotates relative to the other out of a neutral position, a piston (40) within the coupling displaces a magneto-rheological fluid from the coupling. Within the valve are a restrictor (98) and a coil (104) at the restrictor for controlling the viscosity of the fluid there, and this determines the rate at which the fluid is displaced from the cavity, which in turn determines the force required to move the piston and ultimately the torsional stiffness of the stabilizer bar.</p> |
