The invention relates to an air spring module having an air spring and a shock absorber for the suspension and damping of vibrations of a motor vehicle chassis. The air spring has a rolling bellows which is fastened to an air spring cover and a rolling piston. The rolling bellows at least partially delimits a first working space filled with compressed air. At least two working spaces are provided in the rolling piston, which are separated from one another by a partition and connectable to the first working space via switchable valves arranged in the rolling piston. In order to achieve simple production and installation as well as a low overall height, the rolling piston has at least two working spaces which are arranged adjacent to one another.

A spring-damper system consisting of at Least a differential cylinder (4), a hydraulic accumulator (26) and a control valve device (1, 2), is characterized in that by means of at least one motor-pump unit (22) pressure fluid can be supplied to the annular end (6) or both the annular end (6) and the piston end (8) of the differential cylinder (4) in a dosed circuit using the control valve device (1, 2).

An active control anti-yaw damper (100) is provided. When a piston (2) of the active control anti-yaw damper (100) reciprocates inside a hydraulic cylinder (1), an interior of the hydraulic cylinder (1) is divided into two cylinder blocks (PA, PB) which communicate with an oil reservoir through two main oil lines respectively to form a primary loop between the hydraulic cylinder (1) and the oil reservoir; a reversing valve (PV3) is installed between the two main oil lines and the oil reservoir and is configured to change a flow direction of the primary loop when the active control anti-yaw damper (100) is in an active mode and adjust a displacement of the piston (2) within the hydraulic cylinder (1).

A motor vehicle chassis is provided having a base structure that can be hydraulically adjusted in level between a raised and a lowered position. A hydraulic adjuster is assigned to one of the two foot points of the corresponding suspension spring in each of the four wheel suspensions. At least two of the adjusters can be pressurized in parallel by a common hydraulic aggregate comprising a tank and a motor-pump unit and activated by a control unit. The at least two hydraulic adjusters that can be pressurized by the common hydraulic aggregate communicate hydraulically with the accumulator chamber of a spring-piston accumulator, which has at least one piston-position transmitter linked by signal transmission to the control unit.

A suspension system configured to exhibit low variance in vehicle ride frequency over a large range of vehicle loads. The suspension system includes a strut having a cylinder and a piston configured to reciprocate in the cylinder. The suspension system also includes a vessel coupled to the strut, and a valve in an interior chamber of the vessel. The valve divides the interior chamber into a first liquid volume and a second liquid volume. The suspension system also includes a hydraulic accumulator having a volume and a liquid volume. The suspension system further includes a compressible liquid in the cylinder, the first liquid volume in the vessel, and the second liquid volume in the vessel, and a spring element in the volume of the hydraulic accumulator.

A motion control system includes a spring that supports a body structure with respect to a rotating assembly, the spring including an internal working volume, a structure that is connected between the spring and the rotating assembly, and a reservoir that is located in the structure. The reservoir is in fluid communication with the internal working volume of the spring to allow exchange of air between the internal working volume of the spring and the reservoir.

A vehicle suspension system includes a gas spring. The gas spring includes a cylinder and a rod movable relative to the cylinder. The rod and the cylinder at least partially define a chamber having a variable volume and containing a first pressurized gas therein. The gas spring further includes an accumulator in communication with the chamber and containing a second pressurized gas therein. The gas spring provides a first spring rate when the first pressurized gas is pressurized below a threshold pressure and a second spring rate when the first pressurized gas is pressurized above the threshold pressure.

An assembly for a hydraulically suspended vehicle axle may have a central housing, and at least two hydraulic suspension components supported on the central housing and fluidly connected to one another by a fluid line extending at least partially through the central housing.

A spring damper apparatus for a vehicle, with a hydropneumatic system, via which a wheel of the vehicle can be braced spring-mounted and damped on a body of the vehicle. The hydropneumatic system includes a first chamber delimited at least partially by a partition element, in which a fluid acting on the partition element is accommodated. In addition, the hydropneumatic system includes a second chamber separated from the first chamber by the partition element and delimited by the partition element, in which a gas forming a gas spring and acting on the partition element is accommodated. In addition, the hydropneumatic system includes a housing in which the fluid is accommodated. In addition, the hydropneumatic system includes a piston shiftably accommodated in the housing and acting on the fluid, via which piston the wheel can be braced on the body.

A control device for controlling a hydraulic consumer (2), such as a working cylinder, has at least one control valve (18) having a control spool (20). Control spool (20) is guided in a valve housing (22) in a longitudinally movable manner and is actuated by an electric motor (24). Electric motor (24) can be controlled by control electronics (MC), which receive input signals from a sensor device (58, 60, 62) detecting at least one operating state of the consumer (2).