low fuel alerts
1. Enable Low Fuel Alerts should be checked. The vehicle must be allowed to send low fuel alerts (true by default, controlled by Vehicles:VehicleTriggerLowFuelAlerts).
2. The vehicle must not be a container, a test number, or an unknown vehicle (vehicle 0).
3. The raw miles run must be at least 40 miles since the last time it fueled.
4. The raw miles run must be within the unbounded fueling limit (aka Max Trip Distance without fuel bounding, typical default=400 miles).
5. No maintenance bays or similar controllers can trigger alerts, only servicing lanes.
6. Percentage Expected To Trigger Low Fuel Alert: The amount of fuel actually dispensed must be less than the expected value times the trigger percentage (Vehicles:VehicleLowFuelTrigger). In other words, must be less than x% of the expected amount of fuel.
a. More Low Fuel emails: If the vehicle has an expected fuel of 60 gallons, and the low fuel trigger is 90%, 54 gallons or more must be pumped to avoid an alert. 60*.9=54. Used when even 6 gallons of fuel would be deemed critical to avoid a road call.
b. Fewer Low Fuel emails: If the vehicle has an expected fuel of 60 gallons, and the low fuel trigger is 70%, 42 gallons or more must be pumped to avoid alert 60*.7=42. Used if 10 – 20 gallons more would be deemed necessary to bring the bus back to the yard.
c. Fewer yet: If the vehicle has an expected fuel of 60 gallons, low fuel trigger is 50%, only 30 gallons or more must be pumped to avoid alert (60*.5=30). Used if operations want to know if a bus received half the fuel it probably should’ve
7. Fluid Alert Threshold (% Of Tank Capacity) The amount of "missing fuel" must represent at least x% of the tank capacity (default=20%). If we expected 78 gallons to go to a 125-gallon tank and they put in 46 then the missing fuel is 32 gallons (78-46), or 25.6% of the tank size. That’s GREATER than 20% of the tank size (125 Gallons), so it’s significant and we trigger an alert.
8. There must have been fuel dispensed and the expected value must have been within the tank capacity limit, or the vehicle must be specifically set to trigger on no-fuel cases.
9. There must have been an odometer input, and that input value must be considered valid.