Knorr-Bremse Rail Systems (UK) Limited

Westinghouse Brake and Signal Holdings Limited

Westinghouse Brakes (UK) Limited

Knorr-Bremse Rail System (UK) Limited

Knorr Bremse Rail Systems Limited

Derek Tate

Ross Bradley

Nigel Anstey

Keith William Langley

Rodney Miflin

Andrew Ross Bradley

Mark Andrew Hemmings

Russell Clinton Harding

In a brake system for a railway vehicle, actuation of the respective inlet, (), exhaust () and a link valve () is controlled by an electronic control unit (). The electronic control unit () has a counter for counting the number of valve operations performed by each respective inlet () and exhaust () valve, wherein the electronic control unit (), in use, determines which of the respective inlet () and exhaust () valves are to be actuated to brake the railway vehicle. The determination is made at least in part in dependence on the number of valve operations performed by the respective inlet () and exhaust () valves.

Railway vehicle brake control system

A control system for a platform screen door system. The platform screen door system includes a door configured to be opened and closed. The control system includes a door drive means and a microprocessor door drive control means configured to control an opening and closing of the door according to a predetermined profile. Also included is at least one probe configured to monitor one or both of the door drive means and a motion of the door. Further included is a controller configured to control the door drive means such that when the controller is in use the controller brakes the door drive means when a signal from the probe is outside a predetermined door operating envelope.

Platform screen door

An apparatus and method for controlling the operation of a screen door system. The apparatus includes a first transceiver adapted to be mounted on a train, a second transceiver adapted to be mounted on either a train platform or a portion of the platform screen door system. The first and second transceivers are configured to communicate with each other such that when a train is stopped at the train platform within a predetermined distance of and adjacent to a door of the platform screen door system, a signal is transmitted from the first transceiver to the second transceiver to open the door. When passenger embarkation and debarkation is complete, a signal is transmitted from the first transceiver to the second transceiver to close the door, and when the door is closed and locked, a signal is transmitted to the train to depart.

Platform screen doors

A brake system for a railway vehicle (), wherein the axles () of the vehicle are provided with axle speed sensors () adapted to measure the speed of rotation of the respective axle. The output of the axle speed sensor being fed to a data processor (), which is provided with local intelligence so as to permit individual control of brake pressure on each axle or, alternatively on each bogie or car. The data processor () communicates, in use, with a brake control unit via a databus (), the sensor outputs being processed so that the data can be communicated between the data processor () and further data processors (), which further data processors are adapted to process sensor outputs on further axles or bogies.

Digital databus

A valve arrangement is disclosed for controlling the pressure in first and second brake actuation outputs (). First and second air inlet valves () supply air to respective ones of the actuation outputs; first and second exhaust valves () are each associated with a respective one of the inlet valves; and a link valve () is between the actuation outputs. The arrangement is such that the pressure in each of the actuation outputs is controllable selectively either in mode a) jointly, with the link valve enabling air flow between the actuation outputs or in mode b) independently, with the link valve blocking air flow between the brake actuation outputs.

Controlling pressure in brake actuation outputs

Apparatus for controlling a brake system operable using an air supply, includes an electronic control ( ) for controlling air distribution and air to an air to electrical converter ( ) for generating an electrical supply for energising the electronic control using air under pressure from the air supply ( ). Air distribution is controlled either as a result of sensed pressure in a brake control pressure pipe ( ) or as a result of an electronic brake control signal.

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Melksham, United Kingdom

Derek Tate