An Approach to Simulate Chassis Dynamometer Test Cycles with Engine Dynamometer Test Cycles for Heavy-Duty Urban Buses 962196
A mathematical model has been developed to transfer Chassis Dynamometer (CD) test cycles for heavy duty vehicles to the equivalent Engine Dynamometer (ED) test cycles. The model assumed a generalized drivetrain layout, and a variable drive line efficiency. An interactive computer code was written to represent the mathematical model for different drivetrain systems. Several CD test cycles were used to obtain equivalent ED test cycles for a sample based upon an urban bus equipped with an automatic transmission. Results showed the possibility of simulating CD test cycles with equivalent ED test cycles for heavy-duty urban buses under certain assumptions.
Citation: Salem, M. and Bata, R., "An Approach to Simulate Chassis Dynamometer Test Cycles with Engine Dynamometer Test Cycles for Heavy-Duty Urban Buses," SAE Technical Paper 962196, 1996, https://doi.org/10.4271/962196. Download Citation
Mohamed I. Salem, Reda M. Bata
West Virginia Univ.
1996 SAE International Truck and Bus Meeting and Exposition
Alternative Fuels and Heavy Duty Engines-SP-1247, SAE 1996 Transactions - Journal of Commercial Vehicles-V105-2