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Brake Positions

This section now refers to the Engine Blueprint and not the previous Engine Simulation Blueprint

The following Brake Control Positions are available. They should be used as ‘Notches’ on a Notched Lever TrainBrakeControl or EngineBrakeControl.

The following table describes the fields inserted into the Notched Data Identifiers. Values in these fields are a decimal fraction of the full action of the notch (1).

 Direct Just 0-1 full release to full application
 MaxQuickRelease Air Brakes only, release at Max Quick Release Rate parameter
 SelfLapped The train pipe maintained at current pressure
 Hold / HoldLapped Isolates the controller from the train pipe
 NeutralHandleOff Isolates the controller from the train pipe
 MinimalReduction Pressure is set to system pressure minus Minimum Reduction Pressure
 FullService Pressure is set to Max Pressure minus Full Serice Pressure Drop
 Suppression Pressure set to Max Pressure - Minimum Reduction Pressure
 Emergency Full on Application. Control Value is set to 1.0
 GraduatedQuickRelease Air Only - release rate is proportional to 'Max Quick Release Rate' and the Control position
 Release or ReleaseLapped The release rate is proportional to 'Max Release Rate' and the Control position
 EPApply or EPHold Electro Pneumatic Brakes only. Apply / Hold the EP Brake
 Running The controller closes all variable methods of train pipe control off
Note that a device maintained on idle will still operate (such as a small ejector, compressor or exhauster). On Vacuum brakes, you should get a slow release in 'Running' but only if there is a source working to restore the pressure
 GraduatedSelfLap The Train Pipe is maintained at pressure proportional to Control position
 Apply The Application rate is proportional to Control position
 ContinuousService The Application rate is proportional to Control position & Max Application Rate + Min Continuous Service Release Rate
 GraduatedSelfLapLimited This is the same as GraduatedSelfLap but proportional to Full Service Pressure Drop
 GraduatedSelfLapLimitedHolding The Train Pipe Pressure is proportional to Control position and the difference between Full Service Pressure Drop and Minimum Reduction Pressure
 GraduatedSelfLapLimitedKeepPressure The Train Pipe Pressure is proportional to Control position and the difference between Full Service Pressure Drop and Minimum Reduction Pressure