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RU 🇷🇺

In the Limits step set the safe operating limits by truck type, as well as some limiting parameters of battery trucks.

TKPH Limits

Bridgestone Limit (tkph)

Michelin Limit (tkph)

Haul Infinity automatically adds TKPH delays to cycle times to keep tyres below the TKPH limit.

  • TKPH limits can be found in the tyre manufacturer’s handbook.

  • Michelin provides a temperature coefficient for calculating TKPH at different temperatures. This coefficient can sometimes be negative if the average haul speed is below 5 kilometers per hour. Essentially this means that there are no TKPH delays.

  • Haul Infinity calculates TKPH for every possible source and destination and then matches that with the limit set in this setup task. If the vehicle's calculated TKPH is greater than the TKPH limit for a haul in that period, then it will introduce delays (or it will slow down the truck to match the TKPH limit).

Cornering Speed Limits

Cornering speeds are used to slow down trucks at intersections and switchbacks. Corners are measured by the angle of deflection and the lookahead distance.

Haul Infinity automatically assigns speed limits to corners based on the inputs in this table.

For angles greater than ninety degrees, consider dropping the speed limit to 10 km/hr.

Cornering measures deflection rather than radius, because we are dealing with digitized points.

Speed Limits

These are the default speed limits that apply on all unsigned roads.

A truck is never allowed to exceed its loaded or unloaded speed limits. The speed limits are for each increment of gradient between -15.5% downhill and +15.5% uphill.

Haul Infinity will always choose the lowest speed between the defaults and road signage.

Loaded Speed Limits

Haul Infinity automatically assigns speed limits to loaded trucks based on the inputs in this table.

For grades steeper than -9.5%, consider dropping the speed limit to 20 km/hr (or second gear equivalent).

For grades steeper than +9.5%, consider dropping the speed limit to 10 km/hr (or first gear equivalent).

Unloaded Speed Limits

Haul Infinity automatically assigns speed limits to unloaded trucks based on the inputs in this table.

For grades steeper than -9.5%, consider dropping the speed limit to 40 km/hr (or fourth gear equivalent).

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