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1. bhtooefr (bhtooefr@mastodon.social)'s status on Sunday, 04-Mar-2018 00:51:10 UTC bhtooefr

   And, wait, if it was bigger... how did they get that? The engine's more powerful, after all, and not much more advanced than what they showed in 2009.

   They made it a plug-in hybrid, which is a completely valid approach to improving efficiency of vehicles. As the electric grid moves towards renewables, electric transport only gets better.

   However, plug-in hybrids in Europe have efficiency reported in a very strange way.

   • Hallå Kitteh repeated this.
   • bhtooefr (bhtooefr@mastodon.social)'s status on Sunday, 04-Mar-2018 00:56:29 UTC bhtooefr

     In the US, when a plug-in hybrid's efficiency is certified, there's a lot of numbers reported to the customer, which looks a lot like this.

     You'll see a miles per gallon gasoline equivalent figure for "elec+gas" - charge depleting mode, in other terms. This is complete with the amount of gasoline and the amount of electricity used to go 100 miles, and a range figure in that mode.

     Then, you'll see a separate figure for "reg. gas" - charge sustaining mode - with the same figures.

     Hallå Kitteh repeated this.
   • bhtooefr (bhtooefr@mastodon.social)'s status on Sunday, 04-Mar-2018 01:02:48 UTC bhtooefr

     (That's because the charge depleting range is 50 km.)

     That electricity is a huge deal, though, and it's completely ignored.

     You actually can reverse the real charge sustaining efficiency out of their claimed range figures, though - 50 km on electric only, >500 km on electric plus the diesel, with a 10 liter tank.

     That means 10 l/450 km, or 2.2 l/100 km, which is nowhere *NEAR* the target!

     Hallå Kitteh repeated this.