High Accuracy High Response 48 Inch Roll Chassis Dynamometer

Paper #:
  • 940487

Published:
  • 1994-03-01
Citation:
Suzuki, Y., Torikai, K., Ichiriki, H., Maruki, T. et al., "High Accuracy High Response 48 Inch Roll Chassis Dynamometer," SAE Technical Paper 940487, 1994, https://doi.org/10.4271/940487.
Pages:
20
Abstract:
The development is completed of a new 48″ roll chassis dynamometer for 2 wheel drive (2WD) and 4 wheel drive (4WD) light duty vehicle (LDV). Overhung roll configuration onto the shaft of a hydraulic frame floated AC dynamometer is applied. Braking force measurement accuracy of PAU is ±0.1% of full scale. Vehicle traction force can be measured in high response manner without wheel torquemeter. The above and some new instrumentation architecture are reported.Digital vector controller for PAU and a new digital road load controller enabled 90% step response in 75 ms. Besides that, a dynamic road load verification method and 4WD application is reported.
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