A freight vehicle has a frame defining a support surface for the goods to be transported, a plurality of rubberized wheel assemblies with suspensions, the height of which can be adjusted to shift the support surface between a lowered loading position and a raised transport position, and a driver's cab arranged beneath said support surface; the cab being coupled to, and overhanging, the frame by means of an articulated quadrilateral transmission unit and being shifted by pneumatic actuators configured to vertically move the whole cab in relation to the support surface between two extreme end positions, one approaching the support surface and one spaced apart from said support surface, and to arrange the cab in a cushioned intermediate position for the transport of the goods.

A cabin suspension system, adapted to be used in a forestry vehicle, comprising an operator cabin, adapted to control the forest vehicle, spring dampers, mountable between the operator cabin and a vehicle frame, magnetorheological dampers, mountable between the operator cabin and a vehicle frame, sensors, adapted to detect velocity and/or acceleration and/or movement of the cabin, of the vehicle frame and a dampening coefficient of the magnetorheological dampers, and a controlling unit.

A hydropneumatic suspension system for vehicles, at least consisting of an axle suspension (10) and a cabin suspension (12), which for supplying them with pressurized fluid, can be connected to a pressure supply source, is characterized in that both the axle suspension (10) and the cabin suspension (12) can be actuated jointly by means of an control device (14), and in that, by means of a priority detection system (16) involving a sensor device (18) for the respective suspension (10, 12), the supply with pressurized fluid of the one suspension (10, 12) takes precedence depending on demand over the other suspension (12, 10).

Resin plate-shaped mudguards 11 are disposed on vehicle width direction outer sides of left and right side members 7 below a cab. A cab rear member 12 is fixed to a vehicle body frame 5 and extends upward from the vehicle body frame 5 to support a rear end side of the cab from below. Mudguard brackets 17 for supporting the left and right mudguards 11 are fixed to an upper end portion of a support member 15L of the cab rear member 12. The mudguard 11 is disposed forward of the mudguard bracket 17 and supported by the mudguard bracket 17. A BSM radar 10 detects information of an object around a vehicle, is disposed on a vehicle width direction outer end portion behind the mudguard 11, and is fixed to a second bracket 19 of the mudguard bracket 17 via a radar bracket 20.

A vibration isolator includes a housing forming an internal cavity, an elastomeric diaphragm within the internal cavity, the elastomeric diaphragm combining with a first end of the housing to form an air spring within the internal cavity, a mechanical spring in series with the air spring within the internal cavity; a mount in series with the mechanical spring opposite the air spring, an annular elastomeric stopper between a second end of the housing and the mount, wherein the mount and the annular elastomeric stopper combine to seal the second end of the housing to form a chamber within the internal cavity between the elastomeric diaphragm and the second end of the housing, and a plate seated on the mount within chamber.

A spring-damper system includes at least a differential cylinder (4), a hydraulic accumulator (26) and a control valve device (1, 2). By 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 closed circuit using the control valve device (1, 2).

The present subject matter relates to improved damping fluid mount devices, systems, and methods in which a damping fluid mount (100) includes an inner member (110), an elastomer section (130) that is affixed to an outer surface of the inner member (110), an annular damping plate (140) attached to a bottom portion of the inner member (110), a cup (200) containing viscous fluid positioned about the elastomer section and the damper plate, and a collar (310) positioned about a portion of the elastomer section (130), the collar (310) having an inner diameter that is less than an outer diameter of the damper plate (140).

A system for suspending a cab frame relative to a base component of a work vehicle may generally include a sensor assembly coupled between the cab frame and the base component. The sensor assembly may include a sensor coupled to the cab frame and a sensor arm configured to pivot relative to the sensor. The sensor assembly may also include a sensor linkage extending lengthwise between a first end portion and a second end portion. The first end portion of the sensor linkage may be coupled to the sensor arm. Additionally, the second end portion of the sensor linkage may be coupled to the base component such that the second end portion is rotatable relative to the base component about at least two different axes.

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).

Vehicle cab suspension control systems are disclosed herein. In some embodiments, the cab suspension control systems can include front cab-to-frame mounts that include controllable elastomer-based isolators that can provide real time variable damping to improve ride quality and/or road holding and reduce cab roll in response to, for example, input from one or more cab and/or frame mounted accelerometers, position sensors, etc. Embodiments of the control systems described herein can utilize a single vehicle controller (e.g., an ECU) to control all of the cab suspension components (e.g., semi-active damping technologies, air spring technologies, etc.) employed on a vehicle to provide a single suspension control solution that can provide improved ride performance, road holding, etc.