Provided is versine trolley-type equipment for inspecting a track irregularity, having sensors respectively provided to a trolley so as to measure a height difference, direction misalignment, gauge irregularity, rail longitudinal slope, cant and the like of railroad rails, and simultaneously measuring the height difference and direction misalignment of a left rail and a right rail so as to reduce a measurement time by half and, also, allowing left and right measurement frames to freely move in a vertical direction within a predetermined range, thereby bringing front and rear trolley wheels of the left and right measurement frames into close contact with the rails all the time even if the rails are warped.

Provided is versine trolley-type equipment for inspecting a track irregularity, having sensors respectively provided to a trolley so as to measure a height difference, direction misalignment, gauge irregularity, rail longitudinal slope, cant and the like of railroad rails, and simultaneously measuring the height difference and direction misalignment of a left rail and a right rail so as to reduce a measurement time by half and, also, allowing left and right measurement frames to freely move in a vertical direction within a predetermined range, thereby bringing front and rear trolley wheels of the left and right measurement frames into close contact with the rails all the time even if the rails are warped.

A load measuring device for a railcar bogie in which a vibrationproof rubber between an axle box and a bogie frame includes a vertical load fluctuation sensor in parallel with the vibrationproof rubber and configured to deform in conjunction with elastic deformation of the vibrationproof rubber in a vertical direction, the vibrationproof rubber supporting a downward load from the bogie frame. The vertical load fluctuation sensor changes an electric output by the deformation of the vertical load fluctuation sensor in conjunction with the elastic deformation of the vibrationproof rubber in the vertical direction.

A load measuring device for a railcar bogie in which a vibrationproof rubber between an axle box and a bogie frame includes a vertical load fluctuation sensor in parallel with the vibrationproof rubber and configured to deform in conjunction with elastic deformation of the vibrationproof rubber in a vertical direction, the vibrationproof rubber supporting a downward load from the bogie frame. The vertical load fluctuation sensor changes an electric output by the deformation of the vertical load fluctuation sensor in conjunction with the elastic deformation of the vibrationproof rubber in the vertical direction.

Disclosed is a method of monitoring a problem related to a railroad car by a railroad car monitoring apparatus, the method including: selecting a monitoring target of the railroad car; selecting a diagnosis reference related to the monitoring target; measuring travelling data related to the monitoring target while the railroad car travels; drawing a result value of the characteristic function according to the travelling data and comparing each of the travelling data with a reference value in a normal state and determining whether a defect is generated in the monitoring target.

A method for providing a diagnostic message associated with at least one process in a rail vehicle, includes using at least one device of the vehicle to carry out the process, using a diagnostic device of the vehicle associated with the process to produce at least one diagnostic report, and using a data acquisition device to acquire at least one environment dataset. In order to keep the time required for the preprocessing of the information content short despite high data volume, the data acquisition device includes at least one image and/or sound-recording unit. Image and/or sound data being recorded by the image and/or sound-recording unit, the environment dataset containing image and/or sound data, the diagnostic report and the environment dataset are combined by an aggregation unit of the vehicle to produce the diagnostic message. A rail vehicle having an apparatus providing a diagnostic message is also provided.

A method for providing a diagnostic message associated with at least one process in a rail vehicle, includes using at least one device of the vehicle to carry out the process, using a diagnostic device of the vehicle associated with the process to produce at least one diagnostic report, and using a data acquisition device to acquire at least one environment dataset. In order to keep the time required for the preprocessing of the information content short despite high data volume, the data acquisition device includes at least one image and/or sound-recording unit. Image and/or sound data being recorded by the image and/or sound-recording unit, the environment dataset containing image and/or sound data, the diagnostic report and the environment dataset are combined by an aggregation unit of the vehicle to produce the diagnostic message. A rail vehicle having an apparatus providing a diagnostic message is also provided.

The pulling device includes at least one motor; an epicyclic (or planetary) gear train comprising a first element, a second element, and a third element selected from an internal sun gear, an external ring gear, and a planet carrier, the first element being integrally secured in rotation with the output shaft of the motor, the second element being designed to drive an axle of the vehicle in rotation; the detection means detecting an anomaly with respect to the motor; the releasable locking means, that are capable of assuming a locking configuration locking the third element in rotation, and a release configuration for releasing the third element; and the control means commandcontrolling the maintaining of the locking means in the locking configuration when no anomaly is detected, and moving of the locking means into the release configuration when an anomaly is detected.

The pulling device includes at least one motor; an epicyclic (or planetary) gear train comprising a first element, a second element, and a third element selected from an internal sun gear, an external ring gear, and a planet carrier, the first element being integrally secured in rotation with the output shaft of the motor, the second element being designed to drive an axle of the vehicle in rotation; the detection means detecting an anomaly with respect to the motor; the releasable locking means, that are capable of assuming a locking configuration locking the third element in rotation, and a release configuration for releasing the third element; and the control means commandcontrolling the maintaining of the locking means in the locking configuration when no anomaly is detected, and moving of the locking means into the release configuration when an anomaly is detected.

A chassis for a rail vehicle includes a chassis frame supported on at least first and second wheelsets and one A-frame linkage per wheelset on both sides of the chassis for horizontal axle guidance of the wheelset. Each A-frame linkage is connected in an articulated manner to one of two axle bearings of a wheelset by a wheelset-side bearing and to the chassis frame by two frame-side bearings. At least one of the bearings per A-frame linkage has a hydraulic bushing with variable longitudinal rigidity. The hydraulic bushing has at least one fluid chamber fillable with hydraulic fluid so that in the fluid chamber a hydraulic pressure can form for adjusting longitudinal rigidity. An acceleration sensor per axle bearing measures wheelset acceleration and an adjustment device adjusts hydraulic pressure in at least one of the fluid chambers depending on the measured wheelset acceleration.