CCG/Diesel Engine File Breakdown

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DIESEL ENGINE FILE BREAKDOWN

kind ­ asset type

rem and ; - comment lines, are no longer supported.. DO NOT USE..

flowsize rate of flow through pipes, generally leave these settings:

trainbrakepipe 170000
epreservoirpipe 0.1
no3pipe 0.1
no4pipe 0.1
auxreservoirvent 0.1
auxreservoir_no3 0.1
auxreservoir_trainbrakepipe 0.1
autobrakecylindervent 0.1
auxreservoir_autobrakecylinder 0.1
equaliser_mainreservoir 0.06
equaliservent 0.06
equaliserventhandleoff 0.1
equaliserventemergency 0.1
no3pipevent 1.5
no3pipe_mainreservoir 0.1
compressor 10
trainbrakepipe_reservoir 1
trainbrakepipevent 0.06
no3pipe_autobrakecylinder 0.1
epreservoirpipe_autobrakecylinder 0.1
mainreservoir_ep 0.1
vacuumbrakepipe 0.1
vacuumbrakepipereleasevent 0.1
vacuumbrakepipevent 0.1
vacuumbrakereservoir_vacuumbrakepipe 0.1
vacuumbrakecylinder_vacuumbrakepipe 0.1
highspeedexhauster_vacuumbrakepipe 0.1

volume ­ size of pipes and appliances.

scale 1 multiplies volume by given value, generally leave this setting.

trainbrakepipe............................. 0.2 brake pipe volume

epreservoirpipe ...........................0.2 For electro pneumatic braking - not currently in use, generally leave this setting

no3pipe..................................... 0.2 Independent brake pipe

no4pipe .....................................0.2 Bail pipe - not currently in use, generally leave this setting

Auxreservoir................................0.0384678 Auxiliary reservoir volume.

Autobrakecylinder........................ 0.00969387 Brake cylinder volume.

vacuumbrakepipe .........................0

vacuumbrakecylinder.................... 0 For vacuum braking - not currently in use, generally leave this setting


mainreservoir ..............................0.9 Main reservoir volume.

equaliser ....................................0.5 Equalising reservoir volume

independantbrakecylinder...............0.0103239 Loco brake cylinder volume.


pressure Brake system pressures.

scale 1 Multiplies pressure by given value, generally leave this setting.

compressor.................................0.00946941 (120psi expressed in grams/m³) Compressor maximum pressure.

mainreservoir...............................0.00946941 Main reservoir maximum pressure

highspeedexhauster .....................0 For vacuum braking - not currently in use, generally leave this setting

brakepipe ...................................0.00736041 (80psi expressed in grams/m³) Brake pipe pressure when fully charged

brakeinitial..................................0.00693861 (72psi expressed in grams/m³) Brake pipe pressure after initial service reduction (for self lapping brakes)

brakefull .....................................0.0044992 (57psi expressed in grams/m³) Brake pipe pressure after full service reduction (for self lapping brakes)

indbrakefull .................................0.005075 Brake cylinder pressure for independant brake service.

trainbrakepipe_start .....................0.00553261 Brake pipe pressure on loading the game.

epreservoirpipe_start ....................0 For electro pneumatic braking - not currently in use, generally leave this setting

no3pipe_start ..............................0

no4pipe_start ..............................0 Generally leave these settings.

auxreservoir_start.........................0.00553261 Auxiliary reservoir pressure on loading the game.

autobrakecylinder_start .................0.00560291 Train brake cylinder pressure on loading the game.

vacuumbrakepipe_start .................0

vacuumbrakereservoir_start ...........0

vacuumbrakecylinder_start .............0 For vacuum braking - not currently in use, generally leave this setting

mainreservoir_start .......................0.00946941 (100psi expressed in grams/m³) Main Reservoir pressure on loading the game.

equaliser_start ............................0.00553261 Equalising Reservoir pressure on loading the game.

independantbrakecylinder_start ......0.00560291 Locomotive brake cylinder pressure on loading the game.

mass

scale 1 Multiplies fuel mass by given value, not currently in use, generally leave this setting.

fuel ...........................................6.2156e+006 Fuel level, not currently in use, generally leave this setting.

motor

resistance....................................1.7 Power figure for DCC, higher resistance value=less power

adhesion .....................................2.5 Adhesion parameter, higher value=greater adhesion

maxvoltage .................................600 Generally leave this setting

maxspeed ...................................40 Maximum speed for DCC, expressed in metres per second.

Brakeratio................................... 55000 Brake force for pressure reduction

max-accel...................................3500

max-decel...................................9000 Parameters for DCC acceleration & deceleration.

axle-count...................................4 Resistance axle count

surface-area..............................80 Resistance ­surface area

moving-friction-coefficient...............0 .03 Resistance moving friction

air-drag-coefficient........................0.00017 Resistance air drag

throttle-power ... Acceleration variables in cabin mode.

   1                            = notch number (1)
     {
       0            30
       5            25          = At speed 5, acceleration = 25
       10           15
       12           0
     }


dynamic-brake ... Deceleration variables while dynamic braking in cabin mode.

   1                            = notch number (1)
     {
       1.333         0
       2            30
       5            25          = At speed 5, deceleration = 25
       10           15
       12            0
     }


Equalisation of Pressures There is a point at which no further brake pipe pressure reduction will result in increased braking effort, this is known as full application or equalisation of pressures.

Imagine you made a 26 psi reduction when operating a loco with a 90psi brake pipe. 90psi in the train pipe minus 26psi reduction equals 64 psi in the pipe. Due to the 2.5:1 ratio of auxiliary reservoir volume to brake cylinder volume, the 26 psi reduction puts 64 psi into the brake cylinder.

As the pressure in the reservoir and the pressure in the cylinder is now equal, no more air will flow into the brake cylinder; and making a further reduction in brake pipe pressure will have no effect on braking.

Equalisation occurs at different pressures, depending on the train pipe feed pressure. 100 psi pipe (e.g. the UK locos - 7 bar) equalisation at 71 psi. 90 psi pipe (e.g. the US locos) equalisation at 64 psi. 72 psi pipe (e.g. French & Queensland locos) equalisation at 49 psi.

The easiest way to set your custom content to the desired brake pipe feed pressure is to copy the entire pressure section from the config of a loco that uses the pressure you desire.


Note: Converting PSI to Grams /m cubed...

e.g. 90psi...    (90+14.7)0.0000703        (add atmospheric pressure 14.7psi to get absolute pressure)
                     = 104.7 x 0.0000703
                     = 0.00736041


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