"Motor" container: Difference between revisions
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| Line 7: | Line 7: | ||
motor | motor | ||
{ | { | ||
resistance 1.7 | resistance 1.7 | ||
adhesion 5.0 | adhesion 5.0 | ||
maxvoltage 600.0 | maxvoltage 600.0 | ||
maxspeed 33.3 | maxspeed 33.3 | ||
brakeratio 55000 | brakeratio 55000 | ||
max-accel 3500 | max-accel 3500 | ||
max-decel 9000 | max-decel 9000 | ||
throttle-notches 8 | throttle-notches 8 | ||
axle-count 6 | axle-count 6 | ||
surface-area 80.0 | surface-area 80.0 | ||
moving-friction-coefficient 0.03 | moving-friction-coefficient 0.03 | ||
air-drag-coefficient 0.00017 | air-drag-coefficient 0.00017 | ||
full-throttle-speed 33.0 | full-throttle-speed 33.0 | ||
driving-wheel-weight-ratio 1.0 | driving-wheel-weight-ratio 1.0 | ||
} | } | ||
| Line 41: | Line 41: | ||
====brakeratio==== | ====brakeratio==== | ||
:Type: Decimal | :Type: Decimal | ||
:Desc: | :Desc: Coefficient between the pressure in brake cylinder and the brake force. | ||
====max-accel==== | ====max-accel==== | ||
| Line 51: | Line 51: | ||
:Desc: Decelerative force available in DCC mode. Note - this is a force, not a rate of deceleration. The rate of deceleration will depend on the mass of the train as well. | :Desc: Decelerative force available in DCC mode. Note - this is a force, not a rate of deceleration. The rate of deceleration will depend on the mass of the train as well. | ||
====throttle-notches==== | ==== throttle-notches ==== | ||
:Type: Integer | :Type: Integer | ||
: | :Description: Specifies the number of throttle notches in the cabin. By default, all (non-steam) locos have 8 throttle notches, but this may be overridden with this tag. Note that this has no impact on train power output, unless the engine also enables the [[KIND_Engine#throttle-power-extended-notch-range|throttle-power-extended-notch-range]] or [[KIND_Engine#dynamic-brake-extended-notch-range|dynamic-brake-extended-notch-range]] options, and provides the relevant data in the power output graphs. | ||
====axle-count==== | ====axle-count==== | ||
:Type: Integer | :Type: Integer | ||
:Desc: Number of axles on this vehicle. Used in rolling [ | :Desc: Number of axles on this vehicle. Used in rolling [[#Resistance_calculations |resistance calculations]]. | ||
====surface-area==== | ====surface-area==== | ||
:Type: Decimal | :Type: Decimal | ||
:Desc: | :Desc: Frontal surface area (sq ft) of vehicle. Used in air [[#Resistance_calculations |resistance calculations]]. | ||
====moving-friction-coefficient==== | ====moving-friction-coefficient==== | ||
:Type: Decimal | :Type: Decimal | ||
:Desc: Used in rolling [ | :Desc: Used in rolling [[#Resistance_calculations |resistance calculations]]. | ||
====air-drag-coefficient==== | ====air-drag-coefficient==== | ||
:Type: Decimal | :Type: Decimal | ||
:Desc: Used in | :Desc: Used in air [[#Resistance_calculations |resistance calculations]]. | ||
====full-throttle-speed==== | ====full-throttle-speed==== | ||
:Type: Decimal | :Type: Decimal | ||
:Desc: | :Desc: Obsolete- no longer used. (Previously: maximum speed with DCC throttle at 100%) | ||
====driving-wheel-weight-ratio==== | ====driving-wheel-weight-ratio==== | ||
:Type: Decimal | :Type: Decimal | ||
:Desc: Ratio (between 0.0 and 1.0) of the weight of this vehicle bearing down on driven wheels. Used by steam locos only. | :Desc: Ratio (between 0.0 and 1.0) of the weight of this vehicle bearing down on driven wheels. Used by steam locos only. | ||
==Resistance calculations== | ==Resistance calculations== | ||
| Line 89: | Line 83: | ||
These calculations occur according to Davis formula: | These calculations occur according to Davis formula: | ||
R = (1. | R = (1.3·m + 29·axle-count) + moving-friction-coefficient·m·V + air-drag-coefficient·surface-area·V^2 + 20·m·G<br><br> | ||
R = total resistance in lb. including grade resistance<br> | R = total resistance in lb. including grade resistance<br> | ||
| Line 95: | Line 89: | ||
m = weight of the vehicle (tons)<br> | m = weight of the vehicle (tons)<br> | ||
G = % grade (upgrade +, downgrade -)<br> | G = % grade (upgrade +, downgrade -)<br> | ||
[[Category:Config Container|motor-container]] | |||
{{cont-Engine|motor-container}} | |||
{{ORP-bot|motor-container}}<div>{{FUN-bot|motor-container}} | |||
Latest revision as of 23:29, 30 September 2026
The Motor container is a top-level config.txt file entry used by Enginespec and Steam Enginespec assets.
Supported Tags
The Motor container supports the following tags. Each tag is show here with its default value.
motor
{
resistance 1.7
adhesion 5.0
maxvoltage 600.0
maxspeed 33.3
brakeratio 55000
max-accel 3500
max-decel 9000
throttle-notches 8
axle-count 6
surface-area 80.0
moving-friction-coefficient 0.03
air-drag-coefficient 0.00017
full-throttle-speed 33.0
driving-wheel-weight-ratio 1.0
}
resistance
- Type: Decimal
- Desc: Not used
adhesion
- Type: Decimal
- Desc: Not used
maxvoltage
- Type: Decimal
- Desc: Voltage to traction motors. This is used to scale the ammeter displayed in the cab. (Power is volts times amps - increasing the voltage means reducing the ammeter...)
maxspeed
- Type: Decimal
- Desc: Maximum speed in DCC mode.
brakeratio
- Type: Decimal
- Desc: Coefficient between the pressure in brake cylinder and the brake force.
max-accel
- Type: Decimal
- Desc: Accelerative force available in DCC mode. Note - this is a force, not a rate of acceleration. The rate of acceleration will depend on the mass of the train as well.
max-decel
- Type: Decimal
- Desc: Decelerative force available in DCC mode. Note - this is a force, not a rate of deceleration. The rate of deceleration will depend on the mass of the train as well.
throttle-notches
- Type: Integer
- Description: Specifies the number of throttle notches in the cabin. By default, all (non-steam) locos have 8 throttle notches, but this may be overridden with this tag. Note that this has no impact on train power output, unless the engine also enables the throttle-power-extended-notch-range or dynamic-brake-extended-notch-range options, and provides the relevant data in the power output graphs.
axle-count
- Type: Integer
- Desc: Number of axles on this vehicle. Used in rolling resistance calculations.
surface-area
- Type: Decimal
- Desc: Frontal surface area (sq ft) of vehicle. Used in air resistance calculations.
moving-friction-coefficient
- Type: Decimal
- Desc: Used in rolling resistance calculations.
air-drag-coefficient
- Type: Decimal
- Desc: Used in air resistance calculations.
full-throttle-speed
- Type: Decimal
- Desc: Obsolete- no longer used. (Previously: maximum speed with DCC throttle at 100%)
driving-wheel-weight-ratio
- Type: Decimal
- Desc: Ratio (between 0.0 and 1.0) of the weight of this vehicle bearing down on driven wheels. Used by steam locos only.
Resistance calculations
These calculations occur according to Davis formula:
R = (1.3·m + 29·axle-count) + moving-friction-coefficient·m·V + air-drag-coefficient·surface-area·V^2 + 20·m·G
R = total resistance in lb. including grade resistance
V = speed - mph
m = weight of the vehicle (tons)
G = % grade (upgrade +, downgrade -)
