Patent ID: 7735837
Filing Date: 2010-06-15
Classification: B60G

Abstract:
1. An active anti-roll device of a vehicle, comprising: a wheel set including two wheel supports coupled to a frame of the vehicle; a torsion bar linked to the frame, said torsion bar including free ends coupled to the wheel supports; and at least one actuator having a first zone and a second zone, and the first zone being connected to an eccentric point by an actuator-bar linkage and the eccentric point being relative to a median axis of the vehicle and the torsion bar, and the second zone being connected to the frame by an actuator-frame linkage; wherein the at least one actuator presents actuation means to create a relative displacement between the first and the second zones and the at least one actuator being arranged so as to adjust a substantially vertical distance between the eccentric point and the frame as a function of a control signal. and the active anti-roll device further including control means to transmit the control signal to the at least one actuator, and wherein the first zone of the at least one actuator is linked to the second zone of the actuator by a pivot linkage of an axis parallel with a transversal direction of the frame, the first zone being arranged such that the axis of the pivot linkage and the eccentric point of the torsion bar are in a substantially horizontal plane relative to the frame, and the actuator includes a force reduction means coupled to the actuation means, said force reduction means causes pivoting of the first zone relative to the second zone.