SAE J1269 is a standard test defined by the Society of Automotive Engineers[1] to measure the rolling resistance of tires under conditions of thermal equilibrium.[2][3] SAE J2452 is an alternative procedure for measuring rolling resistance under conditions similar to a vehicle coastdown event, where the tire is in a roughly isothermal condition (but not thermal equilibrium).
| Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires | |
 SAE J1269 and SAE J2452 performed on new tires. | |
| Status | Published |
|---|---|
| Year started | 1979 |
| Latest version | 202012 December 22, 2020 |
| Organization | SAE International |
| Committee | Highway Tire Committee |
| Related standards | SAE J2452, ISO 28580 |
The rolling resistance coefficient (RRC) thus measured indicates the proportion of energy that is lost to the hysteresis of the material as the tire rolls.
References
edit- ^ "Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires J1269_202012". sae.org. SAE. Retrieved 3 February 2024.
- ^ Hall, D. E.; Moreland, J. C. (2001). "Fundamentals of Rolling Resistance". Rubber Chemistry and Technology. 74 (3): 525–539. doi:10.5254/1.3547650.
- ^ Mars, W. V.; Luchini, J. R. (1999). "An Analytical Model for the Transient Rolling Resistance Behavior of Tires". Tire Science and Technology. 27 (3): 161–175. doi:10.2346/1.2135982.
.JPG){kind=small} | This article about an automotive technology is a stub. You can help Wikipedia by expanding it. |
 | This standards- or measurement-related article is a stub. You can help Wikipedia by expanding it. |