A suspension actuator includes an upper mount, a lower mount, a first actuator mechanism, and a second actuator mechanism. The upper mount is connectable to a sprung mass of a vehicle. The lower mount is connectable to an unsprung mass of the vehicle. The first actuator mechanism forms a first load path between the upper mount and the lower mount. The first actuator mechanism is one of an electromagnetic linear actuator mechanism or a ball screw actuator mechanism. The second actuator mechanism forms a second load path in parallel with the first load path between the upper mount and the lower mount. The second actuator mechanism is one of a mechanical linear actuator mechanism, an air spring actuator mechanism, or a hydraulic actuator mechanism.

An air control valve (100) adapted to control an air flow (FA) for an air cushioning receptacle (802) in a motor vehicle (1000) includes a valve seat (120), a valve body (110), and a valve passage element (105) with a passage inlet (140) on an inlet side (141) and a passage outlet (150) on an outlet side (151). A coil spring (160) in contact with the valve body (110) and with a valve stop (152) on the outlet side (151) is adapted to exert a closing force (FC) to press the valve body (110) to the valve seat (120). A damping body (200) is arranged in an inner spring space (161) of the coil spring (160) such that the damping body (200) radially extends in a winding space (162) between a first coil winding (163) and a second coil winding (164) of the coil spring (160).

An air spring has an air-spring lobe made of elastomer material, which is clamped at the lobe ends thereof via connection parts between the sprung mass and the unsprung mass and is connected by way of the connection parts to the fastening parts of the sprung and the unsprung mass. The connection parts and the air-spring lobe enclose the working chamber that is under internal pressure and contains the air-spring volume. The working chamber is in connection with at least one air connection provided in the connection parts. At least one of the connection parts is connected to the associated fastening part by a releasable snap-in or latching connection and the snap-in or latching connection includes at least one air connection, to which a feed line or a hose for the compressed air supply is connected.

An air spring includes a closing member, a rolling piston, and an air spring bellows connected to the rolling piston and the closing member to form a fluid-filled pressure chamber. A level control system for supplying and/or discharging fluid may be integrated into the pressure chamber to control level position based on air spring stroke. The level control system may have a control valve and an actuator connected to the control valve. The actuator may include a guide tube coupled to the rolling piston or closing member, and movably arranged within the pressure chamber. An actuating member may include a pin member and may operate the control valve. A compression spring may have a central spring and a biasing spring, and the guide tube may include a control flange coupled to the pin member, and the biasing spring may be supported to press the pin member against the control valve.

A suspension system (2) comprising two flanges (10A, 10B), defining respective absolute reference positions, the second flange (10B) defining a relative reference position relative to the first flange (10A); and a core member (17), which is mobile only along a two degrees of freedom (M19, R19), a damper (21) applying an elastic return for bringing back the core member (17) to two degree reference positions; wherein the positions of the flanges (10A, 10B) and of the core member (17) are mechanically linked so that: when the flanges (10A, 10B) are in the absolute reference positions, the core member (17) is in the two degree reference positions; when the second flange (10B) is away from the relative reference position, the core member is away from the first degree reference position; and when the flanges (10A, 10B) are away from the absolute reference positions, the core member is away from the second degree reference position.

A cabin (12) of a mobile work machine (10) is adaptable to a frame of the work machine by means of an arrangement (1) which comprises longitudinal levelling means (2) for levelling the cabin in the direction of longitudinal tilting (A) of the work machine, and transverse levelling means (20) for levelling the cabin in the direction of sideward tilting (H),transverse in relation to the longitudinal direction (B) of the work machine, with respect to transverse pivoting axle (J). The transverse pivoting axle extends in a substantially orthogonal horizontal direction in relation to the longitudinal pivoting axle (C), and is adapted at a lower height than the longitudinal pivoting axle.

An operator station suspension system including a subframe structure with connection locations, isolators, and suspension components to couple the subframe structure to a chassis and enable movement of the subframe structure relative to the chassis. The subframe structure connects to an operator station at the connection locations with isolators between the subframe structure and operator station at each connection location to reduce noise and vibration. The isolators can be made of rubber, polymer or other materials. Each connection location can have a connection post, and the isolators can be ring-shaped to fit over the connection posts. The suspension components can include shock dampers that enable vertical movement, control linkages that enable pitch motion, and/or stabilizer linkages that enable roll motion of the subframe structure relative to the chassis. The subframe structure can include a rigid body with forward and rearward arms rigidly connected to the rigid body.

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.

An operator station suspension system including isolators, a butterfly crossbar and station connection locations located on the butterfly crossbar. The butterfly crossbar includes a central crossbar that extends laterally with forward extending arms rigidly connected at the left and right ends, and rearward extending arms rigidly connected at the left and right ends of the central crossbar. The butterfly crossbar couples to the operator station at the station connection locations with one of the isolators located between the butterfly crossbar and the operator station at each of the station connection locations to reduce noise and vibration. Each connection location can have a connection post, and the isolators can be ring-shaped to fit over the connection posts. The suspension system can also include shock dampers for vertical movement, control linkages for pitch motion, and/or stabilizer linkages for roll motion of the subframe structure relative to the chassis.

An operator station suspension system including isolators, a butterfly crossbar and station connection locations located on the butterfly crossbar. The butterfly crossbar includes a central crossbar that extends laterally with forward extending arms rigidly connected at the left and right ends, and rearward extending arms rigidly connected at the left and right ends of the central crossbar. The butterfly crossbar couples to the operator station at the station connection locations with one of the isolators located between the butterfly crossbar and the operator station at each of the station connection locations to reduce noise and vibration. Each connection location can have a connection post, and the isolators can be ring-shaped to fit over the connection posts. The suspension system can also include shock dampers for vertical movement, control linkages for pitch motion, and/or stabilizer linkages for roll motion of the subframe structure relative to the chassis.