| ORTSLocomotive DriveWheelOnlyBraking ( x ) | ENG
A | Determines whether both drive and non-drive wheels are braked. | Integer -
where
x =1 (Drive Wheels only)
x = 0 (Braking on all locomotive wheels). | As per locomotive specifications.
Applys to steam locomotives only. | New | ORTSLocomotive DriveWheelOnlyBraking ( 1 ) |
| AirBrakesMainMaxAir Pressure ( x ) | ENG
A | Maximum air pressure in the main air brake reservoir. When this pressure is reached the compressor will automatically stop running. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. | Existing | AirBrakesMainMaxAir Pressure( 105.0 ) |
| AirBrakeMaxMainRes PipePressure ( x ) | ENG
A | The maximum pressure that the main reservoir pipe can reach. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. (only to be used with twin pipe systems) | Existing | AirBrakeMaxMainRes PipePressure( 95.0 ) |
| AirBrakesCompressor RestartPressure ( x ) | ENG
A | Pressure below which the compressor will start to recharge the main reservoir. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. | Existing | AirBrakesCompressor RestartPressure( 90.0 ) |
| ORTSCompressorIs MuControlled ( x ) | ENG
V | Synchronize compressor operation on MU locomotives. | Integer -
0 = No, 1 = Yes
Default - No | As per train brake system specifications. | Existing | ORTSCompressorIs MuControlled ( 0 ) |
| AirBrakesMainResVolume ( x ) | ENG
A | Pressure below which the compressor will start to recharge the main reservoir. | VolumeDefaultFT3 - ft^3, in^3, m^3, l, g-uk, g-us
Default - ft^3 | As per brake system specifications. | Existing | AirBrakesMainResVolume ( 20.490ft^3 ) |
| ORTSMainResChargingRate ( x ) | ENG
A | Recharging rate for main reservoir, depends upon the capacity of the air compressor. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. (if unknown see brake force calculator) | New | ORTSMainResChargingRate ( 0.237 ) |
| ORTSDynamicBrakes HasAutoBailOff ( x ) | ENG
A | Gives preference to Dynamic braking when braking. | Integer -
0 = No, 1 = Yes
Default - No | As per brake system specifications. | New | ORTSDynamicBrakes HasAutoBailOff ( 1 ) |
| ORTSDynamicBrakes HasPartialBailOff ( x ) | ENG
A | Gives preference to Dynamic braking when braking. If dynamic braking is not sufficient, air brakes will be partially applied so the combination air+dynamic provides the required brake demand. | Integer -
0 = No, 1 = Yes
Default - No | As per brake system specifications. | New | ORTSDynamicBrakes HasPartialBailOff ( 1 ) |
| ORTSEngineBrake ReleaseRate ( x ) | ENG
A, V | Release rate for engine brakes. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. | New | ORTSEngineBrake ReleaseRate ( 12.5 ) |
| ORTSEngineBrake ApplicationRate ( x ) | ENG
A, V | Application rate for engine brakes. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. | New | ORTSEngineBrake ApplicationRate ( 12.5 ) |
| ORTSBrakePipe QuickChargingRate ( x ) | ENG
A, V | Charging rate for lead engine brake pipe during a quick release. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications.
Default - ORTSBrakePipeChargingRate. | New | ORTSBrakePipe QuickChargingRate ( 12.5 ) |
| ORTSBrakePipeChargingRate ( x ) | ENG
A, V | Charging rate for brake pipe, influences the pressure gradient, or how fast the air can travel to the end of the train. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications.
x > 1000, disables the function. This value can also be set through the option menu. | New | ORTSBrakePipe ChargingRate ( 40.0 ) |
| TrainPipeLeakRate ( x ) | ENG
A, V | Leakage rate for brake pipe, influences the pressure maintained in brake pipe. Leaking brake pipes can apply brakes. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. | Existing | TrainPipeLeakRate ( 0.0833 ) |
| ORTSBrakePipeTimeFactor ( x ) | ENG
A, V | Influences the time for brake pressure changes to propogate through the train brake pipe along the length of the train. | Time - s, m, h
Default - s | As per train brake system specifications. | New | ORTSBrakePipeTimeFactor ( 0.003 ) |
| ORTSBrakeService TimeFactor ( x ) | ENG
A, V | Influences the time for the brake pipe pressure to drop and equate to the equalising reservoir pressure under normal operation. | Time - s, m, h
Default - s | As per train brake system specifications. | New | ORTSBrakeService TimeFactor ( 1.009 ) |
| ORTSBrakeEmergency TimeFactor ( x ) | ENG
A, V | Influences the time for the brake pipe pressure to drop and equate to the equalising reservoir pressure under emergency operation. | Time - s, m, h
Default - s | As per train brake system specifications. | New | ORTSBrakeEmergency TimeFactor ( 0.1 ) |
| ORTSBrakePipe DischargeTimeMult ( x ) | ENG
V | Controls propagation decrease time along train pipe as vacuum is destroyed, ie when brakes applied | Factor | As per train brake system specifications. | New | ORTSBrakePipe DischargeTimeMult ( 1.5 ) |
| BrakesTrainBrakeType ( x ) | ENG
V | Indicates type of train brake implemented. | set to "vacuum_single_pipe_eq" or "vacuum_single_pipe" as appropriate. | As per engine brake system specifications. | Existing | BrakesTrainBrakeType ( "vacuum_single_pipe_eq" ) |
| BrakesEngineBrakeType ( x ) | ENG
V | Indicates type of engine brake implemented. | set to "steam_brake" or defaults to air or vacuum as set by train brake type. | As per train brake system specifications. | Existing | BrakesTrainBrakeType ( "steam_brake" ) |
| VacuumBrakesSmall EjectorUsageRate ( x ) | ENG
V | The rate that the small ejector uses steam from the boiler when it is on. Referenced to 120psi steam pressure. (Steam locomotives only). | MassRateDefaultLBpH - lb/hr
Default - lb/h | As per train brake system specifications. | Existing | VacuumBrakesSmall EjectorUsageRate ( 300.0 ) |
| VacuumBrakesLarge EjectorUsageRate ( x ) | ENG
V | The rate that the large ejector uses steam from the boiler when it is on. Referenced to 120psi steam pressure. (Steam locomotives only). | MassRateDefaultLBpH - lb/hr
Default - lb/h | As per train brake system specifications. | Existing | VacuumBrakesLarge EjectorUsageRate ( 650.0 ) |
| VacuumBrakesHas VacuumPump ( x ) | ENG
V | A vacuum pump is fitted to the locomotive. (Steam locomotives only) | Integer -
0 = No, 1 = Yes
Default - No | As per train brake system specifications. | Existing | VacuumBrakesHas VacuumPump ( 0 ) |
| VacuumBrakesMin BoilerPressureMaxVacuum ( x ) | ENG
V | The boiler pressure impacts upon the maximum vacuum possible by the ejector. | Pressure - psi, kPa, bar, inHg
Default - psi | As per train brake system specifications. | Existing | VacuumBrakesMin BoilerPressureMaxVacuum ( 250 ) |
| ORTSVacuumBrakes MainResVolume ( x ) | ENG
V | The volume of the main vacuum brake reservoir | VolumeDefaultFT3 - ft^3, in^3, m^3, l, g-uk, g-us
Default - ft^3 | As per train brake system specifications. | New | ORTSVacuumBrakes MainResVolume ( 180 ) |
| ORTSVacuumBrakesMainRes MaxVacuum ( x ) | ENG
V | The maximum vacuum in the main vacuum brake reservoir. When this pressure is reached the exhauster will automatically stop running. | Pressure - psi, kPa, bar, inHg
Default - psi | As per train brake system specifications. | New | ORTSVacuumBrakesMainRes MaxVacuum ( 23.0InHg/s ) |
| ORTSVacuumBrakes ExhausterRestartVacuum ( x ) | ENG
V | The rate that the large ejector uses steam from the boiler when it is on. Referenced to 120psi steam pressure. (Steam locomotives only). | Pressure - psi, kPa, bar, inHg
Default - psi | As per train brake system specifications. | New | ORTSVacuumBrakes ExhausterRestartVacuum ( 21.0InHg/s ) |
| ORTSVacuumBrakesMainRes ChargingRate ( x ) | ENG
V | The rate at which the main vacuum reservoir charges at. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default | As per train brake system specifications. | New | ORTSVacuumBrakesMainRes ChargingRate ( 0.2In/Hg ) |
| VacuumBrakesVacuum PumpResistance ( x ) | ENG
V | The resistance that the vacuum pump puts on the locomotive pulling power. | Force - N, kN, lbf
Default - Newtons | As per train brake system specifications. | New | VacuumBrakesVacuum PumpResistance ( 1000N ) |
| ORTSTrainDynamic BlendingTable ( x y ) | ENG
V | Allows blending of dynamic brake so that different % of brake can be applied at different speeds. | x = speed (m/s),
y = Tractive Force (N) | As per train brake system specifications. | New | ORTSTrainDynamic BlendingTable ( 10 1000 ) |
| Locomotive Brake Controller Information |
| This section describe the parameters defining the brake control equipment for the automatic (train brake) and independent (engine) brake. These parameters control the pressure in the brake pipe, which inturn operates the triple valve located on the wagon. They appear in the ENG section of the ENG file. Only the parameters for the automatic brake are shown below, but by substituting the word "Engine" for "Train" at the beginning of each parameter the independent brake can be defined with the same type of parameters. |
| EngineBrakesController HasProportionalBrake ( x ) | ENG
A | | | Not currently defined in OR code. | Existing | |
| EngineBrakes ProportionalBrakeLag ( x ) | ENG
A | | | Not currently defined in OR code. | Existing | |
| EngineBrakesController MinSystemPressure ( x ) | ENG
A | | | Not currently defined in OR code. | Existing | |
| EngineBrakesController EmergencyBrakeTimePenalty ( x ) | ENG
A | | | Not currently defined in OR code. | Existing | |
| EngineBrakesController DirectControlExponent ( x ) | ENG
A | | | Not currently defined in OR code. | Existing | |
| TrainBrakesController MinSystemPressure ( x ) | ENG
A | | | Not currently defined in OR code. | Existing | |
| TrainBrakesController MaxSystemPressure ( x ) | ENG
A, V | Maximum pressure that the train brake pipe will operate at for the train brake system. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. | Existing | TrainBrakesController MaxSystemPressure ( 70 ) |
| TrainBrakesController MaxReleaseRate ( x ) | ENG
A, V | Maximum rate the train brake controller will increase air in the train pipe, under normal brake release. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. | Existing | TrainBrakesController MaxReleaseRate ( 5.0 ) |
| TrainBrakesController MaxQuickReleaseRate ( x ) | ENG
A | Maximum rate the train brake controller will increase air in the train pipe, under quick brake release. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. | Existing | TrainBrakesController MaxQuickReleaseRate ( 20.0 ) |
| TrainBrakesController MaxApplicationRate( x ) | ENG
A, V | Maximum rate the train brake controller will release air from the train pipe, under normal brake application. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. | Existing | TrainBrakesController MaxApplicationRate ( 2.0 ) |
| TrainBrakesController EmergencyApplicationRate( x ) | ENG
A, V | Maximum rate the train brake controller will release air from the train pipe, under emergency brake application. | PressureRateDefaultPSIpS - psi/s, kPa/s, bar/s, inHg/s
Default - psi/s | As per brake system specifications. | Existing | TrainBrakesController EmergencyApplicationRate ( 30.0 ) |
| TrainBrakesController FullServicePressureDrop ( x ) | ENG
A, V | Pressure drop resulting from a full service application of the train brake controller. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. | Existing | TrainBrakesController FullServicePressureDrop ( 25.0 ) |
| TrainBrakesController MinPressureReduction ( x ) | ENG
A | Pressure that will be dropped by a minimum reduction setting on the train brake controller. | Pressure - psi, kPa, bar, inHg
Default - psi | As per brake system specifications. | Existing | TrainBrakesController MinPressureReduction ( 7.0 ) |
| Locomotive Brake Control Valve Information |
| This section describes some of the parameters used to define the brake control valve used by the locomotive driver. They appear in the ENG section of the ENG file. This statement includes a train or engine 'brakecontroller' for each notch position on the brake control valve. For an indication of the type of brakecontrollers to use for different brake valves refer to the Air brakecontrollers or Vacuum brakecontrollers pages. |
| ControlName ( w x y z ) | ENG
A, V, M | Describes a notched control valve. | Mulitpliers | As per brake system specifications.
w - minimum value of valve
x - maximum value of valve
y - step value of valve
z - default value (setting this values determines the starting position of the brakes) | Existing | Brake_Train ( 0 1 0.01 0.25 |
| ORTSSmallEjector ( w x y z ) | ENG
V | Describes a notched control valve which operates the small steam ejector. | Mulitpliers | As per brake system specifications.
w - minimum value of valve
x - maximum value of valve
y - step value of valve
z - default value (setting this values determines the starting position of the brakes) | New | ORTSSmallEjector( 0 1 0.1 0.55 ) |
| ORTSFast VacuumExhauster ( x ) | ENG
V | In diesel and electric locomotives, the Vacuum Exhauster preforms a similar function to the small and large ejector, but in an "automated" fashion. (Diesel and Electric only) | Multipliers | As per train brake system specifications. | New | ORTSFast VacuumExhauster ( 0 1 0 ) |