Commercial Motor Vehicle TPMS

Commercial Motor Vehicle

The load-carrying capability of a tire is critically linked to the inflation pressure. Fleet operators will generally select a particular “target pressure” for their trucks based on the unique load, operating, and environmental conditions in which they operate.

If not properly inflated, the useful tire life, as well as safety is compromised. Tires are often improperly inflated; the act of tire pressure maintenance is labor and time intensive. An 18-wheeled vehicle can take from 20-30 minutes to check all of the tires and inflate perhaps two or three tires that may be low on air. Thus, new approaches and technologies have been developed for the commercial motor vehicle market to help improve tire maintenance practices, including various types of tire pressure monitoring systems.

Key observations:

  • Tire-related costs are the single largest maintenance cost item for commercial vehicle fleet operators.
  • For the average fleet operator in the U.S. improper tire inflation increases the annual procurement costs for both new and retreaded tires by about 10-13%.
  • For a typical TL or LTL operator, improper tire inflation increases the total operating costs by about $750 annually per tractor-trailer combination.
  • The cost associated with routine tire pressure maintenance, combined with the increased costs due to poor inflation, arguably represents the total costs that could be addressed (that is reduced) by tire pressure monitoring systems.

Article Source:  Federal Motor Carrier Safety Administration/U.S. Dept. of Transportation.

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