SAE J2452

Stepwise Coastdown Methodology for Measuring Tire Rolling Resistance.

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Standard:
  • J2452
Issued:
  • 1999-06-01
Issuing:
  • Highway Tire Committee
Scope:

This SAE Recommended Practice is applicable to pneumatic Passenger Car ""P"" Type, Light Truck Metric, and Light Truck High Flotation tires, or similar tires approved by bodies other than Tire & Rim Association. The methodology is applicable within normal operating ranges of vertical load and inflation pressure, and for velocities between 115 km/h and 15 km/h (71 mph and 9 mph) during a relatively short duration event such as a coastdown. This procedure is applicable only to operation in the free-rolling mode at zero slip and camber angle for ambient temperatures between 20 °C and 28 °C (68 °F and 82 °F) and for surfaces with diameters of 1.2 m (48 in) diameter or greater. Details regarding the equipment, tires, and test methods used specifically for validation of this document are included in Appendix A.

History:
StandardPublishedRevisionStatus
J2452_1999061999-06-01LatestIssued
AKA:
  • SAE J 2452
Sector:
  • Automotive
Topic:
  • Tires and Traction
  • Tests and Testing

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