In the Models step enter truck data to calculate acceleration, deceleration, axle loading, and fuel burn.
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Truck List
On the left hand side is the truck list. You can have as many trucks as you would like to evaluate.
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You can edit names of added trucks, delete, move them up and down in the list, as well as export to “.opentruck” file.
Axle Data
Axle data is used to calculate road friction forces and TKPH on tires during travel. It shows the full and empty weight over each axle, the number of tyres on that axle, and whether it is driven.
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Cross-check these values with the equipment manufacturer’s handbook. Make sure to account for any custom tray modifications that affect axle weights.
Curves
The available curves are Rimpull, Retard, Fuel and Trolley Assist Rimpull.
Turn curves on and off using flags in the Active column.
Curves are digitized out of the manufacturer's handbooks. For better accuracy, calibrate with data from your fleet management system.
Click in the graph area to manually show a point.
Curves can be copied into and pasted from Microsoft Excel using Copy to Clipboard and Paste from Excel buttons.
Rimpull Curve
Rimpull is the amount of tractive force that the engine delivers to the ground through torque on the drive wheels.
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P = power; F = force; V = velocity; F = P / V; |
Retard Curve
Haul Infinity uses retard curves to calculate the maximum safe braking force without overheating the brakes.
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Braking curves are not used to calculate stopping distances. The deceleration properties are set in Setup > Settings > Acceleration.
Fuel Curve
Fuel curves show the fuel consumption in liters per hour at different engine loads. Haul Infinity uses this to calculate total fuel burned on each haul cycle.
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Calibrate this graph with data from the fleet management system.
Trolley Assist Rimpull
Trolley Assist provides an (optional) secondary rimpull curve, which is used when trucks cross traverse a Trolley Assisted segment.
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