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Nissan's third generation e-POWER powertrain

170 points · 462 comments · mroche

  1. Toutouxc · · focus · HN ↗
    I used to like hybrids, and obviously series hybrids are the coolest kind of hybrids, but now that I’m driving a budget EV, I honestly don’t see the point anymore. Just get the EV and skip the awkward half-way step that inherits the most expensive and complicated parts from both designs.

    Seeing a sleek modern car pull away whisper quiet and then start the ICE 3 seconds later with a stutter and a puff of water vapor from underneath is the most schizophrenic sight, it somehow feels more dated than actual ICE cars.

    Unless you live in bumfuck nowhere with expensive electricity, zero solar power and a daily 5 hour commute, an EV will likely work just fine for you.

    1. mchusma · · focus · HN ↗
      I agree I don’t like having both engines, more to fail. BUT I could see a world where you basically have basically an EV with a smaller battery pack (150 mile range) and basically a swappable $300 generator. I saw swappable so that if anything goes wrong they just swap it for $300, and credit you back async any recovery value. Just electricity generation from it, for rare needs of longer range. I think in theory, it could be a good way to get a cheaper EV supporting rare bursts of range and low maintenance cost.

      But I’m not even sure regulators would allow such a design. Even then I’m not sure it’s worth it.

      But I am totally done with ICE car maintenance. I want nothing to do with it anymore.

      1. jakeinspace · · focus · HN ↗
        A cheap diesel/gasoline generator might do like 5kW, which is enough for overnight charging but not for range extension or powering the wheels. There were several pretty good range extended EVs (plugin hybrid with larger battery and smaller engine), like the Volt and BMW i3, those had small engines that mainly acted as generators for the battery, but with enough horsepower to at least keep you rolling on the highway. A $300 modular generator ain't quite gonna cut it.

        I believe there's also a bunch of Chinese vehicles with similar design, entirely electric drivetrain with gas generators for range extension. Most of these will need to kick in before the battery is empty so that there's some stored energy buffer available for acceleration.

        1. malfist · · focus · HN ↗
          To put it in perspective why a 5kWh generator isn't a range extender: my lightening has a range of 331 miles and 135kWh battery. If we assume a spherical cow (60mph, and I get every single one of those 331 miles), the truck buns through the battery in 5.5 hours, which equates to 24.5kWh to keep up.

          In actuality, at highway speeds I'll burn through 80% of the battery in 3 hours which equals a run rate of 36kWh. If we ran a 5kWh generator the whole time and assume perfect charging efficiency, it'd extend the time to charge by 28 minutes.

          1. hdgvhicv · · focus · HN ↗
            But charging at the service station will take 20 minutes after a 3 hour drive which seems reasonable
            1. malfist · · focus · HN ↗
              We did a 12 hour driving trip just recently. Did 15-20 minute breaks for charging about every 2 hours. Perfect timing to get out, use the bathroom, get a new beverage and get going. Barely felt like we were stopping to charge anywhere except when walking to the bathroom since chargers tend to be on the edges of a parking lot instead of near the entrance.

              As a bonus, Ford pushed out an update last year that allowed the truck to charge at 185kws for the first 15 minutes or so of a charge before things heat up, so we took full advantage of it. By the time the charge rate was slowing down we were unplugging to go.

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