Developments in tire pressure monitoring and inflation led to NACFE's update of its Tire Pressure Systems Confidence Report. - Photo: Jim Park

Developments in tire pressure monitoring and inflation led to NACFE’s update of its Tire Pressure Systems Confidence Report.

Photo: Jim Park


The North American Council for Freight Efficiency (NACFE) recently completed a revision of its Tire Pressure Systems Confidence Report, originally published in 2013. NACFE is currently assessing other reports to update.

“For much of last year we focused our efforts on emerging technologies and published Guidance Reports on commercial battery electric vehicles, but we also recognize the importance of keeping the industry up to date on developments in existing fuel-savings technologies,” said Mike Roeth, NACFE Executive Director. “Throughout this year we will continue to review and refresh each of the Confidence Reports on existing technology while continuing our work on emerging technologies.”

Developments in tire-pressure monitoring and inflation lead NACFE to revise the report, which noted that while fleets will see increased productivity when tires are properly inflated, statistics show that only 46% of all tractor tires and 38% of all trailer tires inspected are within ±5 psi of their target inflation pressure.

The report identified five types of tire pressure systems:

  • Tire pressure monitoring systems
  • Dual tire pressure equalizers
  • Automatic tire inflation systems
  • Central tire inflation systems
  • Passive pressure containment approaches

Since the original report was released, tire pressure monitoring systems (TPMS) have become the “enabler of tire management systems,” according to NACFE, adding that TPMS automated tire inflation systems are recognized efficiency options in the Greenhouse Gas Emissions Model of the Greenhouse Gas Phase 2 regulations.

The revision of the Tire Pressure Systems Confidence Report is part of NACFE’s effort to update all existing Confidence Reports. The reports on idle reduction technologies and 6×2 axles were updated in 2019, with the remainder to be updated later this year.





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