Heads Up Display (HUD)
Aim - this section provides an overview of the Heads Up Display (HUD) and the parameters displayed within HUD View.
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Index
Introduction
The HUD provides the user with both basic operational information, and extended information that can be used for debugging the performance of their rolling stock. The HUD can be accessed to show basic operational information by pressing the
At the moment the HUD windows are described for a standard steam locomotive. However most of the HUD windows are relevant to the complete train, and therefore will be applicable to diesel and electric traction. The windows will now be described in turn as the user cycles through them.
Main HUD
This screen appears when
Steam Locomotive
- Version - indicates the current version being run by the user.
- Time - indicates the current time within the simulation.
- Speed - indicates the current speed of the train.
- Gradient - indicates the gradient of the track, ie whether it is rising or falling. Generally +ve values indicate a rising track (ie going up a hill), and -ve values indicate a falling track.
- Direction - indicates the setting on the reverser (cutoff) and the direction of travel. The reverser value is in per cent, so for example a value of 50 indicates that the cylinder is cutting off @ 0.5 of the stroke.
- Regulator - indicates the setting of the regulator (throttle) in per cent.
- Train brake - indicates the status of the brake. EQ = Equalising reservoir pressure, BC = Brake cylinder pressure (first car, typically the locomotive), BP = pressure in the train brake pipe, EOT BP = pressure in the end of train brake cylinder.
- Engine brake - only appears if an engine brake (independent) is configured for the locomotive.
- Steam usage - this value represent the amount of steam used in an hour. This value will change colours to yellow and red to indicate that steam usage is close to the steam generation rate, or is exceeding the steam generation rate. The locomotive should not be operated for long periods of time with yellow or red text here as boiler pressure may start dropping.
- Boiler Pressure - this should be maintained close to the maximum working pressure of the locomotive. Again yellwo or red text will idicate that the pressure is close to the boiler rating, or has exceeded it.
- Boiler water level - indicates the level of water in the boiler. Under operation in AI fireman mode, the fireman should manage this.
- Fuel levels - indicates how much fuel and water is left in the locomotive.
- FPS - indicates how many frames per second are being displayed.
Consist Information
Under construction
Locomotive Information
Under construction
Brake Information
Under construction
Force Information
The top line in the HUD shows information from the wind model as follows: Speed = wind speed, Wind Direction = wind direction in dgrees, 0 / 360 is north, Train Direction = train direction in degrees, ResWind = Resultant component of train and wind direction in degrees, ResSpeed = Speed of resultant combination of wind and train speed.
- Car - indicates the car number in the train, and is aligned to the numbering in the
CON file. - Total - the total force being applied to each car.
- Brake - brake force applied by brake cylinder (force slowing train down, ie after the impact of the brakeshoe CoF).
- Friction - the resisting force due to movement on straight and level track (Typically the value calculated by the Davis formula when moving).
- Gravity - the resisting force due to gravity, ie whne the train is going up or down a gradient on the track.
- Curve - the resisting force due to travel around a curve.
- Tunnel - the resisting force due to travel through a tunnel.
- Wind - the resisting force due to wind movement. Typically the Davis formula calculates resistance in still air. This value is "combined" with the Friction column value. The wind resistance can be +ve if the wind is blowing "against" the train, and -ve if it is blowing in the same direction as the train, and thus assisting its movement.
- Coupler (1) - the force on the coupler. The coupler force will be +ve if the coupler is in tension, or -ve if the coupler force is in compression.
- Coupler (2) - indicates the status of the coupler. The first information column indicates wherher it is treated as a rigid (R) or flexible (F). The second column indicates whether the coupler is in tension (PULL) or compression (PUSH), overloaded (O/L), or broken (xxx).
- Slack - indicates the amount of travel in the coupler.
- Mass - wagon mass.
- Gradient - the gradient of the track that the car is currently travelling on.
- Curve - radius of the curve that the car is currently travelling on.
- Brk Frict. - the Coefficent of Friction (CoF) for the brakehsoes. Typically this value will decrease with speed.
- Brk Slide - indicates whether the wheels have lost grip during a braking operation, and sliding on the track. This reduces the effective braking power of the train.
- Bear Temp - indicates the current temperature of the wheel bearing.
Dispatcher Information
Under construction
Weather Information
Under construction
Debug Information
Under construction