An adjustable brake system for a railroad truck wheel frame. The system includes an elongated body secured to a railroad truck and rotatably secured to a plurality of wheels, the elongated body having a brake side pocket positioned near a wheel of the plurality of wheels; a compression bar and an extension bar extending from a first side of the elongated body to a second side of the elongated body; a strut positioned between the compression bar and the extension bar; a brake head rigidly secured to the compression bar; a protrusion extending from the brake head and configured to engage within the brake side pocket; and a cam rotatably attached to the compression bar and configured to engage within the brake side pocket.

An electropneumatic rail brake system configured to provide emergency braking including an emergency magnet valve which controls air flow into an emergency regulator valve, which valve has an emergency back-up chamber. The emergency regulator provides an output pressure nominally equal to the variable load pressure and no lower than the tare back-up. The magnet valve is closed when energized and when de-energized, pressure is allowed into the emergency back-up chamber, Regulation of the brake cylinder pressure continues during an emergency application such that the brake cylinder pressure applied during an emergency stop does not drop below a predetermined level. In the event of power-loss during an emergency brake stop, the nominal emergency brake pressure is applied to the brake cylinders.

The invention relates to a brake system of a rail vehicle having at least one pneumatic brake actuator, a pneumatic braking device for generating a brake pressure, an electro-pneumatic braking device for generating a brake pressure, and a controller. In the event of rapid, forcible, or emergency braking, the pneumatic braking device or the electro-pneumatic braking device provides a basic brake pressure, and the brake pressure is changed by the electro-pneumatic braking device, starting from the basic brake pressure provided, depending in particular on a load and/or a speed.

A system and method for reducing the threat of derailment of a train during deceleration is provided. An individualized braking force for each rail car of a train, such individualized braking force being determined by the braking deceleration of the train's locomotive, may be calculated by the rail car's controller and is directly proportional to the mass of the rail car. The controller may utilize the various forces acting upon the individual rail car as measured by a plurality of sensing and measuring devices to dynamically adjust the braking force applied to the individual rail car's brakes. Such a system and method allows for the train to act as a single body mass when decelerating to eliminate rail car pile-up and reduce the threat of derailment.

An electro-pneumatic service and emergency braking control system is described, comprising: a switching device arranged to allow the connection of a first group of control and feedback signals from an emergency braking control module to an electro-pneumatic emergency braking module when a monitoring device determines the correct operation of the emergency braking control module and to allow the connection of a third group of control and feedback signals from the service braking control module to the electro-pneumatic emergency braking module when the monitoring device determines the incorrect operation of the emergency braking control module.

A rail train brake control system, comprising: a single vehicle brake control unit, a train brake control unit, a traction control unit and a communication control unit; the single vehicle brake control unit is provided in each vehicle of the rail train, the train brake control unit and the communication control unit are provided in the vehicles at both ends of the rail train, and the traction control unit is disposed in motor vehicles of a plurality of vehicles; and the single vehicle brake control unit, the train brake control unit, the traction control unit and the communication control unit implement communication by means of the gateway. The system can realize flexible marshalling of a train. Further disclosed is a train comprising the train brake control system.

A powering pattern representing velocity of a vehicle at each position of a powering interval in a braking delay period between a timing at which the vehicle exceeds allowable velocity and a braking timing at which the vehicle starts to brake, and a coasting pattern representing velocity of the vehicle at each position of a coasting interval subsequent to the powering interval in the braking delay period are calculated after calculating a braking pattern representing velocity of the vehicle in a braking interval, which is a running interval subsequent to the coasting interval and which occurs between a position of the vehicle at the braking timing and a target position for controlling the vehicle to run at predetermined velocity or less, wherein an acceleration characteristic depending on velocity of the vehicle is used to calculate at least the powering pattern.

A distributor valve for a brake control system of a vehicle is provided with an access interface that includes a plurality of access ports for measuring the operational pressures of the distributor valve. The distributor valve includes a pipe bracket and a main line and main portions mounted on the pipe bracket. The pipe bracket includes a plurality of passages for communicating the main portion and the main line portion with each other and with a brake pipe, brake cylinder, and reservoir of the brake control system. The plurality of access ports of the access interface includes ports in communication with the working chamber passage, valve chamber passage, brake pipe passage, reservoir passage, and the brake cylinder passage of the pipe bracket.

The invention relates to a method and to a system for putting into service a brake system having specified approval prerequisites, in particular wherein the brake system is a pneumatic and/or hydraulic braking system, in particular a pneumatic and/or hydraulic braking system of a rail vehicle, wherein the control data set for the brake system is set on the basis of a real reference operation and a virtual test operation in such a way that the specified approval prerequisites are achieved.

A recognition system of a position of a mechatronic braking control device associated with a railway vehicle along a train is described. The recognition system includes a sustaining and fixing support installed on the railway vehicle, an identifying binary coding of the position along the train, and a mechatronic braking control device adapted to be fixed to the sustaining and fixing support and including an optical reading device arranged to detect the identifying binary coding. The mechatronic braking control device determines the position along the train according to the binary coding that is read by the optical reading device.