A torsion spring arrangement for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.

An anti-roll bar for a vehicle. The anti-roll bar includes a first bar portion for connection to a left-side wheel suspension of the vehicle and a second bar portion for connection to a right-side wheel suspension of the vehicle, and an actuator unit connecting the first bar portion and the second bar portion to each other for transferring torque between the first bar portion and the second bar portion. The actuator unit has a first selectable mode providing a first predetermined torque ratio between the first bar portion and the second bar portion, and a second selectable mode providing a second predetermined torque ratio between the first bar portion and the second bar portion. The first torque ratio and the second torque ratio are different from each other.

A stabilizer assembly for a two-track vehicle comprises: a first and a second stabilizer section; a spring element between the stabilizer sections; a hydraulic actuator having an actuator outer part and an actuator inner part, each of which is non-rotatably connected to one of the stabilizer sections, and an intermediate element connected to the actuator outer part and actuator inner part respectively via outer and inner engagement means, wherein one of the engagement means has a pitch component in the axial direction and the other runs parallel to the longitudinal axis, so that a relative rotational movement of the actuator parts is converted into an axial movement of the intermediate element, wherein the intermediate element pressurises a first and second hydraulic chamber respectively; the hydraulic chambers being hydraulically connected to one another with interposition of a control element.

This stabilizer device is provided with first and second stabilizers and a joint device that can be switched between and ON-state and an OFF-state. The ON-state is a state in which a force inputted to one of the stabilizers can be transmitted to the other stabilizer, and the OFF-state is a state in which said transmission is disabled. The joint device has at least one engagement part that can be displaced to an engagement position and a non-engagement position. In addition, the joint device assumes the ON-state when the at least one engagement part is in the engagement position, and assumes the OFF-state when the at least one engagement part is in the non-engagement position.

This stabilizer device is provided with first and second stabilizers and a joint device that can be switched between and ON-state and an OFF-state. The ON-state is a state in which a force inputted to one of the stabilizers can be transmitted to the other stabilizer, and the OFF-state is a state in which said transmission is disabled. The joint device has at least one engagement part that can be displaced to an engagement position and a non-engagement position. In addition, the joint device assumes the ON-state when the at least one engagement part is in the engagement position, and assumes the OFF-state when the at least one engagement part is in the non-engagement position.

A torsion spring arrangement for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.

A damping system of a two-track vehicle includes a passive stabilizer having a torsion bar which runs in a vehicle transverse direction and having lever elements which adjoin the torsion bar at the end sides and which are connected to mutually oppositely situated wheel suspension arrangements of an axle of the vehicle. Two actuators are assigned to respective wheels of the wheel suspension arrangements and are mounted on the vehicle body. Each actuator has a drive by way of which a torque can be exerted on that section of the stabilizer which faces toward the respective wheel. Here, the actuators are in the form of electric motors and are designed to dampen vertical vibrations of the respective wheel or of the so-called unsprung mass, and/or vibrations of the vehicle body in a frequency range between 0 Hertz and at least 20 Hertz, through suitable regulation of the drive of the actuators and thus also through active introduction of forces into the system.

A torsion spring assembly for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars, and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.

A suspension system for use in vehicles includes a heave spring and an anti-roll bar. The system architecture allows for the ride spring rate and the wheel spring rates to be decoupled, such that each can be independently tuned. Furthermore, the suspension system may be fully active, quasi-fully active, semi-active, or passive.

A vehicle-height control system of an independent corner module, includes a suspension link connected to a wheel and configured to be rotated according to upward-downward displace of the wheel, a gear unit connected to a vehicle body and a rotational center portion of the suspension link and configured to receive a rotation force from the suspension link, a control torsion bar, a first end portion thereof being connected to the gear unit and the second end portion thereof being connected to a torsion variation unit, the torsion variation unit applying a drive force to adjust a height of the control torsion bar and to maintain the adjusted height, and a controller connected to the torsion variation unit and adjusting the height of the control torsion bar.