Patent ID: 8579313

Claim:
An active roll control device comprising: a suspension arm including a penetrating slot is formed in one side of the suspension arm in an up/down direction and a housing disposed at a lower side of the penetrating slot along a vehicle width direction; a variable stabilizer link that interconnects an end portion of a stabilizer bar and the suspension arm such that torsion rigidity of the stabilizer bar is varied to actively control vehicle roll; a sliding unit that includes a rail plate that is disposed in the housing and that connects a connector that is movably disposed on the rail plate with a lower end of the stabilizer link to guide the lower end of the stabilizer link along a width direction of a vehicle; and a drive unit that includes a motor having a lead screw as a rotation shaft through a three-joint mounting portion of a sub-frame disposed at a lower side of a vehicle frame and engages the lead screw with a screw connector that is connected to a hinge portion of one side of the stabilizer link to transfer a driving torque to the stabilizer link.