Simulation of 8.65″ Uncoupled Twin-Roll Hydrokinetic Dynamometer Operation on a 48″ Single-Roll Electric Dynamometer 940486
Vehicle operation on 8.65″ uncoupled twin-roll hydrokinetic and 48″ single-roll dynamometers was analyzed for speed, road load, and inertia simulation differences. Tire slip measurements were used to determine generic coefficients accounting for differences on the two dynamometers. Control methods were developed to use operational speed and load measurements on the 48″ dynamometer to predict the instantaneous rear roll speed which would have occurred on the twin rolls, and to compute instantaneous load corrections on the 48″ dynamometer to simulate the twin-roll dynamometer. Emission and fuel economy tests were run to evaluate simulation effectiveness.
Citation: Brownell, C., Brownell, C., D'Angelo, S., Fagerman, T. et al., "Simulation of 8.65″ Uncoupled Twin-Roll Hydrokinetic Dynamometer Operation on a 48″ Single-Roll Electric Dynamometer," SAE Technical Paper 940486, 1994, https://doi.org/10.4271/940486. Download Citation
Charles L. Brownell, Curtis Brownell, Severino D'Angelo, Todd M. Fagerman, William G. Mears
Horiba Instruments, Inc.
International Congress & Exposition
Testing and Instrumentation-SP-1039, SAE 1994 Transactions: Journal of Passenger Cars-V103-6