Da agencia de Energia americana, tem base no
É considerado um ciclo bem rígido que tem valores de autonomia menores que outros como
WLTP ,NEDC Dados dos veículos podem ser consultados em : https://www.fueleconomy.gov/feg/Find.do ... 0&id=45761 (exemplo XC40/C40)
Planilha para calculo - https://www.epa.gov/system/files/other- ... -2021.xlsm
"Draft Summary" - https://www.fueleconomy.gov/feg/pdfs/EP ... 4-2017.pdf
Não sei se é completo mas parece ter parte das definições aqui
- https://www.ecfr.gov/current/title-40/c ... -600?toc=1
- Aqui https://www.ecfr.gov/current/title-40/c ... 600.116-12 fala claramente que deve aplicar o
SAE J1634 com algumas modificações / explicações- "All label values related to fuel economy, energy consumption, and range must be based on 5-cycle testing or on values adjusted to be equivalent to 5-cycle results."
Na maior parte dos casos após todas as medidas para o calculo da autonomia é aplicado um redutor de 30% para tentar gerar valores com maior chance de que todos consigam atingir a autonomia (o que faz ele gerar números considerados rígidos e que a maioria das pessoas consegue autonomias maiores)
Existem alguns pontos de interpretação no
https://www.arenaev.com/comparison_of_n ... ws-419.php
- "For example, Porsche Taycan’s
EPA range is barely over 200 miles while owners and car tests indicate that the car is capable of going at least 25% longer. The opposite happens with Tesla Model S, which normally can't get near its officialEPA rating because of the adjustment factor that Tesla uses for its model which is based on a different interpretation of theSAE J1634 standard."
- "For example, Porsche Taycan’s
https://www.caranddriver.com/features/a ... e-numbers/
- "The default adjustment factor reduces the window-sticker range by 30 percent. So a car that achieves 300 miles of range during the city-cycle dynamometer test ends up with a 210-mile city rating. However, the
EPA allows automakers the option to run three additional drive cycles and use those results to earn a more favorable adjustment factor. Currently, only Tesla and Audi employ this strategy for their EVs, and Tesla scores the most advantageous results, with adjustments that range from 29.5 percent on the Model 3 Standard Range Plus to 24.4 percent on the Model Y Performance. If Tesla had used the standard adjustment factor of 30 percent, the Model Y Performance's window-sticker range would drop to 292 miles. But because Tesla takes advantage of theEPA 's alternate methodology, the company can instead claim a 315-mile range."
- "The default adjustment factor reduces the window-sticker range by 30 percent. So a car that achieves 300 miles of range during the city-cycle dynamometer test ends up with a 210-mile city rating. However, the
Aqui cita um artigo SAE que não esta mais disponível
- https://sites.google.com/site/nwpriuspl ... c-vehicles
"A five-cycle method for electric cars, to develop Wh/gal numbers, does not exist at this time, so automakers instead can apply anEPA alternative, a correction factor that caps at 30% (reduction) to city/highway, even past 2010... The manufacturers use the petroleum energy-content-equivalent of 33,705 W·h/gal, then dyno-test for Wh/mi and apply the 30% reduction to city and highway." Paul Weissler, from SAE Regulations/Standards,
"
- https://sites.google.com/site/nwpriuspl ... c-vehicles