Browse Publications Technical Papers 2014-36-0263
2014-09-30

Vehicle Efficiency on Chassis Dynamometer Tests 2014-36-0263

Nowadays, due to the global warming questions related to CO2 emissions, many countries legislation lead automotive and fuel industries to search for higher efficiencies in their products. Therefore, new engine technologies and cleaner fuels are being developed and launched in the market.This paper presents a study of efficiencies on chassis dynamometer tests, in order to evaluate vehicle and fuel contributions.Tests were performed using one Brazilian flex fuel vehicle in full load condition at constant speeds to evaluate the losses of each part of the system, such as, wheel, air resistance and powertrain. The vehicle energy parcels were determined. So, it was possible to assess vehicles mechanical losses, aerodynamic losses and also the engine efficiencies.

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