Torsion bar system for a vehicle axle of a two track vehicle

摘要

A torsion bar system for a vehicle axle, in particular a rear axle, of a two-track vehicle, includes first and second rotary actuators, each of which is associated with a vehicle side, for an active suspension control. Each rotary actuator has at least one motor/gear unit with which torques can be generated and transmitted as actuating forces onto a wheel suspension element via an output lever. The motor/gear units of both rotary actuators are arranged in a common housing which is rotationally fixed to the vehicle body. The housing has at least two attachment points for bracing the vehicle body, wherein the attachment points are spaced from one another across a bearing distance, and the housing is mounted on the vehicle body in a rigid assembly via said attachment points.

主权项

1. In combination,
a vehicle body having a subframe comprised of two longitudinal members and at least one cross member which is connected to the longitudinal members, said cross member having an attachment point for a drive component; and a torsion bar system for a vehicle axle of a two-track vehicle, said torsion bar system comprising: first and second rotary actuators, respectively associated with a vehicle side, for an active suspension control, each rotary actuator including at least a motor-gear unit to allow generation of a torque, and an output lever configured to transmit the torque as actuating force onto a wheel suspension element, and a housing mounted in fixed rotative engagement to the vehicle body and accommodating the motor-gear unit of the first rotary actuator and the motor-gear unit of the second rotary actuator, said housing having for stiffening the vehicle body at least two attachment points which are spaced from one another by a bearing distance and via which the housing is mounted rigidly to the subframe of the vehicle body, said housing being arranged in a vertical direction in alignment entirely below the cross member of the subframe, thereby forming a double support, in which the housing is mounted as an additional crossbeam on the subframe, said attachment point of the cross member for the drive component being arranged in a vehicle transverse direction between the attachment points of the housing.