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How do electric car ranges get determined? It’s called “EPA Range” so I figured that the company gives a car to the EPA and the agency runs it from 100-0 under
by idontwantthis 3y ago
How do electric car ranges get determined? It’s called “EPA Range” so I figured that the company gives a car to the EPA and the agency runs it from 100-0 under fixed conditions. Is that not the case? Or would Tesla be doing some kind of VW-esque cheat here?
- maxerickson 3y agoThe EPA isn't calculating the range displayed on the dashboard.
- jackmott42 3y agoon the tesla, they are as the baseline, the multiplied by estimated capacity remaining
- maxerickson 3y agoIs the argument then that what Tesla is doing makes sense? The EPA range estimate is designed to generate a number that is comparable between vehicles, for some definition of typical driving. It isn't all that reasonable to expect it to always apply to the various conditions that vehicles might be operating in.
- jackmott42 3y agoIt is a bit more complicated than that, car makers do the test themselves, EPA can spot check, and manufactures can choose between two methods, one of which comes up with a bigger number, and is reflective more of city driving than highway driving. imho, I fault the EPA for not having a sensible highway range/city range as a standard, then none of this would be an issue
- pseudosavant 3y agoEPA mileage ratings, gas, diesel, and electric are all submitted by the manufacturers themselves. Sometimes if the car is similar enough to another car (Toyota Avalon and Camry) they won't even test it and just give it the same number. Car and Driver have a very thorough breakdown of published range versus their "real world 75mph highway test". https://www.caranddriver.com/features/a44676201/ev-range-epa-vs-real-world-tested/ https://www.caranddriver.com/features/a44676201/ev-range-epa... Mercedes' worst car only gets 3% over the published range. Most Porsche's are above their range. Tesla's best vehicles are only 20% below their rated range. The worst Teslas are 30% below their stickers. Easily the worst in the entire industry. Their average for the BEV industry is 13% below the sticker range. So Tesla is 2-3x worse than average. For comparison against gas vehicles. Across all of their tests, ICE vehicles tend to perform 4% better than their sticker.
- idontwantthis 3y agoAny idea which are the best there?
- pseudosavant 3y agoCheck the Car and Driver link. They are very thorough, scientific, and realistic with their testing. https://www.caranddriver.com/features/a44676201/ev-range-epa-vs-real-world-tested/ https://www.caranddriver.com/features/a44676201/ev-range-epa... I wish EVs would prominently also publish their efficiency (miles/kw). MPGe isn't a useful value for an EV. My Bolt has a 60kw battery, depending on my driving I get between 3.5 to 4.5 miles per KW - 210-270 miles. This notion that your car gets 240 miles, even if the conditions are adverse, is silly. Gas cars are impacted by cold weather too. My car got 20% worse gas mileage in the winter when I lived in the Midwest. If you drive really fast you won't get as good of range out of tank as if you drive slower.
- idontwantthis 3y agoSorry, but does it say somewhere which model is which besides the S performance being the worst?