Haul Fleet Manager

This command manages the haul truck fleet. There are about 20 trucks included with the program by default, and other trucks can be added based on the type used on site. These input values are based on basic fuel and performance comparisons and applied to all trucks in general. Most mining trucks have about the same haul speed, plus or minus 3%-5%, or only a few mph or kph. What does vary is the engine size, road conditions (Effective Grade) and speed. The Effective Grade % is the Actual Grade + Rolling Resistance. The input screen appears a follows.

Resistance data for the highlighted truck appears below, and is in columns for Total Resistance %, Loaded Fuel Duty Cycle %, Loaded Operating Speed, Empty Fuel Duty Cycle% and Empty Operating Speed. Speed will be in mph or kph, and is determined by the setting under the CAD Drawing Settings.

Saved trucks are put into the text format as shown here. Any new trucks can be entered as ASCII text and imported.

The following graph illustrates the relationship between fuel and speed performance, and is how the Resistance Data table is populated. This will allow for user entry of new trucks, if a new truck is added with the green "+" button.

Once the engine size and effective grade is known, the haul speeds and fuel duties for both loaded and empty are derived. This allows for estimating time and net fuel consumption. For example, here is how it is calculated.
Truck Engine = 1491kW
Engine Duty = 100%
Fuel Consumption = 0.25 (l/kW) * 1491 (kW/h) * 100% = 373 (l/h)

The data can be fine-tuned with real dispatch information from mining operation.

Thank you to Peter Nahan of Goldcorp for his suggestions, references and help in developing this command.

Pull-Down Menu Location: Reserves/Timing in Surface Mining
Keyboard Command: haul_fleet