A side bearing assembly for a truck assembly of a rail vehicle includes a base, a cap moveably coupled to the base, and one or more elastomer springs disposed between the base and the cap. The one or more elastomer springs include a foam having air pockets that are configured be compressed.

The railroad vibration control device includes a first cylinder device and a second cylinder device, the first cylinder device includes a first cylinder body, a pump configured to supply hydraulic pressure to the first cylinder body, and a hydraulic pressure circuit configured to adjust a thrust force generation direction and a thrust force of the first cylinder body, the second cylinder device includes a second cylinder body and a damper circuit configured to cause the second cylinder body to function as a damper, and the hydraulic pressure circuit and the damper circuit are the same circuit.

A maglev vehicle and a suspension frame assembly thereof. The suspension frame assembly includes multiple suspension frames sequentially connected to each other. Each suspension frame comprises two motor beams, four support arms, and four air springs. An air spring mounting seat is disposed at a top portion of each support arm. The air spring mounting seats are cavities having openings. The air springs are accommodated in the respective cavities.

A side bearing assembly for a truck assembly of a rail vehicle includes a base, a cap moveably coupled to the base, and one or more elastomer springs disposed between the base and the cap. The one or more elastomer springs include a foam having air pockets that are configured be compressed.

Disclosed is a railway vehicle with a car and a bogie. The bogie includes a chassis and a secondary suspension system. The secondary suspension system includes a jack and a power supply device of the jack fluidly connected to the jack by at least one flow limiter. The jack is configured to go from a first so-called passive configuration, in which the supply device is inactive, the jack then being able to passively damp the oscillations between the car and the chassis using the flow limiter, to a second so-called active configuration in which the supply device is configured to supply the jack in order to modify the distance between the car and the chassis or in order to keep the distance constant between the car and the chassis.

A bogie frame includes a cross beam extending in a car width direction and including a car width direction middle portion at which a center pin arrangement space is formed. The cross beam includes a pair of pipe members extending in the car width direction and lined up so as to be located away from each other in a car longitudinal direction, and air spring seats provided at upper surfaces of car width direction end portions of the pair of pipe members. At least one of the pair of pipe members includes a curved portion at a car width direction middle portion thereof, the curved portion projecting outward in the car longitudinal direction such that a clearance between the pair of pipe members increases. The center pin arrangement space is formed between the pair of pipe members by the curved portion.

A level control system for a vehicle, in particular a rail vehicle, includes at least one level control cylinder and one level control piston, the level control piston being movably guided in the level control cylinder in order to adjust the level of the rail vehicle, the level control piston having an outer piston sleeve and a piston main body at least partially accommodated in the piston sleeve, and the piston main body being slidable relative to the piston sleeve for wear readjustment and being lockable and/or fixable in at least two adjustment positions.

A method for train suspension control by means of multiple air springs includes: receiving a vehicle load pressure; and controlling height adjustment valves according to the vehicle load pressure to adjust the pressure of a first air spring set, a second air spring set and/or a third air spring set. Three height adjustment valves are provided, and the three height adjustment valves form a triangular structure. Each of the first air spring set, the second air spring set and the third air spring set comprises a plurality of individual air springs, and all the individual air springs in each of the air spring sets are correspondingly connected to the same height adjustment valve. A system for train suspension control by means of multiple air springs and a train are further provided.

A bogie frame includes a cross beam extending in a car width direction and including a car width direction middle portion at which a center pin arrangement space is formed. The cross beam includes a pair of pipe members extending in the car width direction and lined up so as to be located away from each other in a car longitudinal direction, and air spring seats provided at upper surfaces of car width direction end portions of the pair of pipe members. At least one of the pair of pipe members includes a curved portion at a car width direction middle portion thereof, the curved portion projecting outward in the car longitudinal direction such that a clearance between the pair of pipe members increases. The center pin arrangement space is formed between the pair of pipe members by the curved portion.

A vehicle body inclination controller includes an air spring, an air reservoir, valve devices, an acquisition section, and a determination section. The determination section compares, with a predetermined threshold, at least one of a value of a ratio between supply control information of a supply valve and exhaust control information of an exhaust valve in the same valve device among the valve devices, a value of a ratio between pieces of the supply control information of the supply valves of different valve devices among the valve devices, or a value of a ratio between pieces of the exhaust control information of the exhaust valves of different valve devices among the valve devices, and determines that a failure occurs in the same valve device or at least one of the different valve devices when the value of the ratio exceeds the predetermined threshold.