The applied technologies to increase vehicle energy efficiency oftentimes have not shown the same benefits in standard laboratory testing when compared to off-cycle. The off-cycle values represent a substantial amount of the overall regulated reduction in emissions for the regulatory programs and the exact extent of this benefice depends on how large the regulatory reduction is considered. In many countries, the energy efficiency legislation considers the off-cycle credits, since it has been demonstrated, and encourages the automakers to use new and innovative technologies, resulting in improvements in vehicle energy efficiency. On the other hand, off-cycle benefits are difficult to measure due to the changes in the environmental conditions, traffic, temperature and others. The vehicles operating in real life have more diverse conditions than on the standards test cycle. The Start & Stop technology fuel consumption reduction is a good example of this. The "Rota 2030" is the new Brazilian legislation approved at the end of 2018, considered this benefit to some technologies. In order to identify those benefits, this work will present and analyze the vehicle fuel consumption reduction provide by Start & Stop technology on a Brazilian urban off-cycle and the data is enable in future comparisons with other technologies in the same real drive cycle.
Stop & Start technology influence on Brazilian urban off-cycle - Simulated versus experimental data analysis
Sae Technical Papers
2019 SAE Brasil Congress & Exhibition ; 2019
2020-01-13
Aufsatz (Konferenz)
Englisch
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