• JackbyDev@programming.dev
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      22 hours ago

      Also, EVs have the potential to basically be “100% efficient” if they happen to be charged by solar. With combustion engines you’re never going to get any sort of improvement, it’s just always what it is.

      • innermachine@lemmy.world
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        20 hours ago

        Not necessarily true, things like direct injection, VVT and VVL and variable compression engines and variable vane turbos and 8 + speed transmissions have increased the efficiency of gas cars. The gas engines are still wasting a lot as heat, if you have any interest in that u should look into smokey yunick and his hot vapor engines. There are improvements to be made in ice but it will still never be 100% efficient. We have far from mastered internal combustion, and I suspect we never will as hopefully EV eventually replace most combustion vehicles.

        • JackbyDev@programming.dev
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          17 hours ago

          Of new gas cars though. But by changing how you charge a battery you change its effective efficiency. A gas engine can’t run on anything but gasoline. (E.g., gas and diesel engines aren’t compatible with the opposite liquid.)

        • Jiral@lemmy.world
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          19 hours ago

          Combustion engine efficiency is limited by hard physics and modern day combustion engines have gotten impressively close to that theoretical limit. So no, the remaining potential of ICE is not that great anymore.

          Actual efficiency of BEVs is way better than even the theoretical limit of ICE.

    • innermachine@lemmy.world
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      20 hours ago

      Right. But what I’m getting at is when we can have 1/3rd of the battery weight with the same capacity, the vehicle range will be even greater cuz it won’t have to lug the batteries around too. Once we get past the weight of the batteries and are able to produce LIGHT evs, the ICE will become even less appealing. Weight has always been a struggle with electric vehicles, and to me is the obvious next big step in tech to improve them.

      • muusemuuse@sh.itjust.works
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        10 hours ago

        Battery weight isn’t as much a deal as you think it is. It can actually be beneficial. For example, instead of the weight being in the front of the car, you can have a lighter motor and have all that weight in between all four wheels. It really does wonders for winter traction.

        • innermachine@lemmy.world
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          1 hour ago

          It does wonders to increase ur inertia so u can’t stop as well in snow too, and makes it harder to change direction. I live in a snowy mountain range and my 2900 lb shit box runs circles around the Tesla’s and big trucks and suvs around here lol. Weight is the enemy of range, speed, efficiency, and gobbles up tires. I’m not saying the weight is an end all be all to things, but it is imo one of the major hurdles left to make EVs so much more competitive than they are. I mean shit a mid 90s geo metro is about as efficient as a brand new Prius. Why? Weight. Once evs can be produced in the 3k lb range they won’t need as much battery for a 300 mile range, or the heavy EVs will have some fucking crazy 800 mile range. THAT is what will knock ice out of the park and get them all replaced. The next big leap in battery tech will about kill gass cars, and only ice left on the road will likely be diesel 18 wheelers. But what do I know? I just work on these things every day.