This SAE Recommended Practice provides uniform testing procedures for measuring the road load force on a vehicle as a function of vehicle velocity and for simulation of that road load force at 80 km/h (50 mph) on a chassis dynamometer.
SAE J1263-1996 history
2010SAE J1263-2010 Road Load Measurement and Dynamometer Simulation Using coastdown Techniques
2009SAE J1263-2009 Road Load Measurement and Dynamometer Simulation Using Coastdown Techniques
1996SAE J1263-1996 Road Load Measurement and Dynamometer Simulation Using Coastdown Techniques
1991SAE J1263-1991 Road Load Measurement and Dynamometer Simulation Using coastdown Techniques
1984SAE J1263-1984 ROAD LOAD MEASUREMENT AND DYNAMOMETER SIMULATION USING COASTDOWN TECHNIQUES
1979SAE J1263-1979 Road Load Measurement and Dynamometer Simulation Using Coastdown Techniques