Patent ID: 8991539
Filing Date: 2015-03-31
Classification: B60G,B62D

Abstract:
1. A suspension assembly for a vehicle comprising a primary suspension assembly for suspending the vehicle wheels to a chassis of the vehicle and a secondary suspension assembly for suspending a cabin of a vehicle to the chassis, the secondary suspension assembly comprising: a plurality of spring members arranged between the cabin and the chassis of the vehicle, and a torsion bar comprising a midsection and two arms each extending substantially transverse to the midsection, each arm being pivotally connected to brackets of the chassis, said torsion bar extending between at least two of said spring members so as to increase the roll stiffness of the secondary suspension assembly, wherein the secondary suspension assembly further comprises a rotation actuator, said rotation actuator comprising a stationary house fixed directly to one of the arms and a rotary part fixed to an end of the midsection, said rotation actuator being arranged at a junction of the midsection with one of the arms that rotatably interconnects the midsection of the torsion bar and one of the arms of the torsion bar and adjusts a torsion angle of the torsion bar to allow active roll stabilization of the cabin.