Tire Rolling Resistance for Light Vehicles, I: Selection of Tires and Tests for Rating System Development

Five Test Methods Evaluated:

1) SAE (USA) Rolling Resistance Test J2452 Coastdown (auto manufacturers use for vehicle fuel economy calculations over a range of speeds),

2) SAE (USA) Rolling Resistance Test J1269 Multi-Point (Uses four or six sets of test conditions and allows calculation of rolling resistance at a “Standard Reference Condition (SRC)),

3) SAE (USA) Rolling Resistance Test J1269 Single Point (Runs a single test at the SRC),

4) ISO (Global) Rolling Resistance Test ISO-18164 Multi-Point (Four or five rolling resistance values based on four or five test conditions)

5) ISO (Global) Rolling Resistance Test ISO- 28580 Single Point (Draft International Standard) in ballot (Runs a single test)