Systems and methods for monitoring a vehicle determine a baseline wheel rotational speed and wheel rotational speeds of a wheel for different positions along an outer perimeter of the wheel. One or more deviations between the wheel rotational speeds and the baseline wheel rotational speed are determined, and the deviations between the wheel rotational speeds and the baseline wheel rotational speed are correlated with one or more identified positions of the positions along the outer perimeter of the wheel. One or more of damage to the wheel or damage to a drivetrain of the vehicle is identified based at least in part on the one or more deviations being correlated with the one or more identified positions.

Methods are provided that may include determining one or more of a vibration characteristic or a fluid characteristic of one or more components of a vehicle and determining one or more expected characteristics for the one or more of the vibration characteristic or the fluid characteristic. The methods may also include determining whether the one or more of the vibration characteristic or the fluid characteristic deviates from the one or more expected respective characteristics, and implementing one or more responsive actions in response to determining that the one or more of the vibration characteristic or the fluid characteristic deviates from the one or more expected characteristics.

Methods are provided that may include determining one or more of a vibration characteristic or a fluid characteristic of one or more components of a vehicle and determining one or more expected characteristics for the one or more of the vibration characteristic or the fluid characteristic. The methods may also include determining whether the one or more of the vibration characteristic or the fluid characteristic deviates from the one or more expected respective characteristics, and implementing one or more responsive actions in response to determining that the one or more of the vibration characteristic or the fluid characteristic deviates from the one or more expected characteristics.

A structural state of at least one component of a mechanically loaded target unit, in particular a target unit of a rail vehicle, can be determined by introducing, in an actual excitation step of an evaluation cycle, a defined actual mechanical input signal into the target unit, capturing, in an actual capturing step of the evaluation cycle, an actual mechanical response signal of the target unit to the mechanical input signal, and comparing, in an actual evaluation step of the evaluation cycle, the actual mechanical response signal to a previously recorded baseline signal to establish an actual differential feature and using the actual differential feature to determine the structural state. The baseline signal is representative of a previous mechanical response signal of the target unit to a previous mechanical input signal.

A structural state of at least one component of a mechanically loaded target unit, in particular a target unit of a rail vehicle, can be determined by introducing, in an actual excitation step of an evaluation cycle, a defined actual mechanical input signal into the target unit, capturing, in an actual capturing step of the evaluation cycle, an actual mechanical response signal of the target unit to the mechanical input signal, and comparing, in an actual evaluation step of the evaluation cycle, the actual mechanical response signal to a previously recorded baseline signal to establish an actual differential feature and using the actual differential feature to determine the structural state. The baseline signal is representative of a previous mechanical response signal of the target unit to a previous mechanical input signal.

The disclosure relates to a method for radially aligning wheelsets of rail vehicles relative to a coordinate system of a wheelset diagnosis tool and/or wheelset machine tool, which method can be implemented quickly with sufficient precision and comprises the following steps: a) positioning the wheelset at a working position of the tool; b) defining a tool-side coordinate system in an assumed wheel centre point of each wheel, where an X-axis adopts a vertical extent, a Y-axis adopts a horizontal extent and a Z-axis describes the resulting depth extent of the wheel; c) measuring the distance of the wheel backs with respect to one another and defining the Z-position=0 on each wheel back; d) defining a unique Z-position for each measuring point; e) positioning each measuring sensor at the specified Z-position; f) measuring the X-position of each measuring point; g) aligning the wheelset by vertically displacing one of the wheels in order to match the X-positions of the measuring points of two wheels.

The disclosure relates to a method for radially aligning wheelsets of rail vehicles relative to a coordinate system of a wheelset diagnosis tool and/or wheelset machine tool, which method can be implemented quickly with sufficient precision and comprises the following steps: a) positioning the wheelset at a working position of the tool; b) defining a tool-side coordinate system in an assumed wheel centre point of each wheel, where an X-axis adopts a vertical extent, a Y-axis adopts a horizontal extent and a Z-axis describes the resulting depth extent of the wheel; c) measuring the distance of the wheel backs with respect to one another and defining the Z-position=0 on each wheel back; d) defining a unique Z-position for each measuring point; e) positioning each measuring sensor at the specified Z-position; f) measuring the X-position of each measuring point; g) aligning the wheelset by vertically displacing one of the wheels in order to match the X-positions of the measuring points of two wheels.

A vibration test bench for electrodynamic-suspension magnetic levitation trains and a testing method using the same. The vibration test bench includes an adjustable track mounting surface, a track base, a guiding track and a simulated levitation device. The track base includes a first track base and a second track base. The first track base and the second track base are respectively provided at two sides of the adjustable track mounting surface. The guiding track is arranged at a bottom of the track base and can be embedded in the T-shaped bolt mounting grooves on the adjustable track mounting surface to move. The simulated levitation device is arranged on the track base and is configured to levitate the magnetic levitation train between the first track base and the second track base.

A vibration test bench for electrodynamic-suspension magnetic levitation trains and a testing method using the same. The vibration test bench includes an adjustable track mounting surface, a track base, a guiding track and a simulated levitation device. The track base includes a first track base and a second track base. The first track base and the second track base are respectively provided at two sides of the adjustable track mounting surface. The guiding track is arranged at a bottom of the track base and can be embedded in the T-shaped bolt mounting grooves on the adjustable track mounting surface to move. The simulated levitation device is arranged on the track base and is configured to levitate the magnetic levitation train between the first track base and the second track base.

An abrasion inspection apparatus includes: a first imaging unit that is installed on a side of a track, a vehicle traveling along the track, a guide wheel being installed on a side of the vehicle, the first imaging unit imaging an inside of the track via a telecentric lens; a second imaging unit that is installed in a vehicle traveling direction with respect to the first imaging unit on the side of the track and images the inside of the track via a telecentric lens; an image acquisition unit that acquires an image which is an image of a boundary of the guide wheel captured by the first imaging unit and is an image of a boundary on a first direction side in the vehicle traveling direction and an image which is an image of the boundary of the guide wheel captured by the second imaging unit at the same time as the capturing of the image by the first imaging unit and is an image of a boundary on an opposite side to the first direction side; and a guide wheel detection unit that detects an abrasion situation of the guide wheel according to a position of a boundary indicated in the images acquired by the image acquisition unit.