Patent ID: 8398092

Claim:
An active roll control system for a vehicle suspension comprising: a suspension sub-frame; a lower control arm; a stabilizer bar including a middle straight portion fixed to the sub-frame; a stabilizer link interconnecting an end of the stabilizer bar to the lower control arm to suppress roll of the vehicle body; and wherein a roll control mechanism is disposed between a lower-end connecting portion of the stabilizer link and the lower control arm to increase roll stiffness by adjusting a lever ratio of the stabilizer bar; and wherein the roll control mechanism includes: upper and lower cases defining a space therebetween and fixed along the lower control arm in a transverse direction of the vehicle; a slider disposed within the space and movable left and right in the space; a bracket fixed to an upper portion of the slider and connected with the lower-end connecting portion of the stabilizer link; a screw shaft rotatably disposed in the space and operably connected with the slider; and an actuator connected to one end of the screw shaft and controlled by an ECU to rotate the screw shaft in the normal and reverse directions, in accordance with a traveling condition of the vehicle.