A system for measuring motion of a locomotive vehicle includes a speed sensor, a decelerometer and an onboard processing unit. The speed sensor is configured to measure wheel speed of the locomotive vehicle. The decelerometer includes a level-sensitive device configured to measure acceleration or deceleration of the locomotive vehicle as a function of a tilt from a level position. The onboard processing unit computes a current grade traversed by the locomotive vehicle prior to detection of a slip or slide condition based on a first measurement signal from the decelerometer. Upon detection of the slip or slide condition, the onboard processing unit obtains a second measurement signal from the decelerometer and filters out the current grade from the second measurement signal. The onboard processing unit determines an actual acceleration or deceleration of the locomotive vehicle during the slip or slide condition from the filtered second measurement signal from the decelerometer.

The present disclosure provides a deep learning-based stop control method and system for a high-speed train, and relates to the technical field of rail transit management and control. The method includes: obtaining a training data set; establishing a convolutional neural network (CNN); training and optimizing the CNN by using the training data set, to obtain an optimized CNN; obtaining actual running data of a to-be-controlled train; inputting the actual running data into the optimized CNN to obtain a stop position of the to-be-controlled train; determining whether the stop position of the to-be-controlled train is 0; and if the stop position of the to-be-controlled train is 0, outputting a breaking command; or if the stop position of the to-be-controlled train is not 0, performing the step of “obtaining actual running data of a to-be-controlled train”. The present disclosure can ensure accurate stop of a high-speed train without high costs.

A brake control system includes first and second brake control units for controlling braking of first and second bogies of a rail car. The brake control units include relay valves for controlling pressurized air flow from a main reservoir to brake cylinder pipes. A bypass conduit connects an outlet of a first brake control module to an outlet of a second brake control module. A fail-safe valve moves between open and closed positions. In the closed position, the fail-safe valve prevents a flow of the pressurized air between the brake control units. The fail-safe valve provides a first pilot pressure to a first relay valve upon a failure of the first brake control unit and provides a third pilot pressure to the second relay valve in response to a failure of the second brake control unit.

A system and method for detecting the operational status of a brake system on a railcar. The system receives from a sensor an indication of the magnitude of a braking force applied by the braking system in response to an instruction to increase or decrease the braking force. It compares the response to possible responses of the braking system in view of the instruction provided. Based on the comparison, the system generates at least one of a message and/or an alert indicating the status of the brake system. Additional sensors, including a pressure sensor on a brake pipe of the railcar, can be added for additional functionality.

A vehicle, in particular to a rail vehicle, has at least one drive motor and a brake control device. A monitoring device measures, in the braking mode of the vehicle, at least one drive current which flows through the drive motor, and at least one drive voltage which is applied to the drive motor, to form measured values, and to generate operational information which specifies the mode of operation of the drive motor, in particular braking information which specifies a braking effect of the drive motor, on the basis of the measured values.

A control system can include a controller that may obtain a location of a phase break along a route. The controller can monitor locations of a vehicle and determine when the vehicle will reach the phase break location. The system also may include a switch proximate to a collector device of the vehicle and/or an actuator that moves the collector device relative to a conductive pathway. The conductive pathway may operate to supply electrical power to the vehicle. The controller can actuate a switch, an actuator, or both the switch and the actuator, and (upon activation) can change a source of power for one or more loads for propulsion of the vehicle through the location of the phase break along the route.

A brake control system includes an interface controller configured to communicate with different control paths of sources for control of a brake system of a vehicle system. Each of the control paths is configured to communicate a control signal from a different source of the sources to control operation of the brake system. The interface controller is configured to arbitrate between the control signals concurrently received from the different sources via the control paths to dictate which of the different sources controls operation of the brake system at different times and prevent control by other sources of the different sources from concurrently controlling the operation of the brake system.

A system for controlling centralized brake of vehicles, comprising: a pressure collection device for collecting the pressure of a main blast pipe and a train pipe control device. The pressure signal output end of the pressure collection device is connected to the pressure signal input end of the train pipe control device; the brake signal input end of the train pipe control device is connected to the brake signal output end of a brake controller; the train pipe control device is pneumatically connected to the main blast pipe and a train pipe separately by means of an air channel. By means of the solution, the installation space of a trailer is reduced, and the costs are lowered. In addition, the change in the pressure of the train pipe is controlled by an automatic brake control system, the train can operate after being connected to an automatically air-braked coach, according to a brake request output by the brake controller and the detection of the real-time pressure of the train pipe, the change in the pressure of the train pipe is controlled, and a five-line control signal is used, so that flexible marshalling can be implemented.

A vehicle control system includes a first controller configured to communicate a first brake command to one or more brake devices of a vehicle system via a communication pathway. The system includes a second controller configured to monitor the communication pathway to determine whether the first brake command from the first controller is communicated via the communication pathway to the one or more brake devices. The second controller is configured to implement a backup brake command to the one or more brake devices based on a presence of the first brake command and a level of brake application dictated by the first brake command.

A vehicle includes an axle, an electric machine, a first wheel, a second wheel, a first friction brake, a second friction brake, and a controller. The controller is programmed to, in response to and during an anti-locking braking event, generate first and second signals indicative of a braking torque demand at the first and second wheels, respectively, based on a difference between a desired wheel slip ratio and an actual wheel slip ratio of the first and second wheels, respectively, adjust a regenerative braking torque of the electric machine based on a product of the first signal and a regenerative braking weighting coefficient, adjust a first friction braking torque based on a product of the first signal and a friction braking weighting coefficient, and adjust a second friction braking torque based on the second signal and dynamics of the first and second output shafts.