I’ve been driving an automatic since I passed nearly a decade ago. In that time whenever I tell anyone I drive auto, it’s usually met with some level of derision. I think that attitude is changing, but I’m still kind of confused by it in the first place.

Why?

  • dragontamer@lemmy.worldEnglish
    1·
    11 months ago

    https://www.youtube.com/watch?v=jofycaXByTc

    I’ve decided to do some research on eCVT. I was surprised at its actual implementation. Toyota Prius, Ford Escape, and probably Honda Accord does this.

    Its basically planetary gear magic. A computer can control two or three inputs, while the outputs are hooked up to the wheels of the car. By changing the speed of the variable input (likely the electronic engine)… the effective gear ratio of the “constant” input (likely the ICE engine) is modified. In the most extreme case, the variable input runs backwards to have the “overdrive” gear ratio.

    It seems like the Honda Accord is a planetary gear eCVT system. Planetary gears are always so cool, I didn’t realize that a CVT could be implemented with one (albeit with a hybrid vehicle where you have 2 or more powered inputs).

    EDIT: it appears that you are correct. Honda’s Hybrid system is different than what I’m familiar with (which is what the above video demonstrated).

    https://youtu.be/QLUIExAnNcE?si=7JzkfL8GfUUoFnbK

    So you’re right with regards to Honda Accord Hybrid. Very interesting. Its always surprising to me how different car companies are with their implementations.

    • DeepChill@sh.itjust.works
      1·
      11 months ago

      I’m so glad you found that video! I’ve seen it before and was having trouble finding it again to post a link here. Since you’ve already fallen down this rabbit hole, might I suggest you watch some reviews of the new 11th gen Accord. Honda is not only adding fake shift points to an eCVT that does NOT HAVE FIXED GEAR RATIOS but they are matching those fake shifts with fake engine noises piped through the speakers inside the cabin. They’ve also regressed from the elegant push button gear selector in my 10th gen to a completely unnecessary shift knob protruding from the console in the 11th gen. It’s actually embarrassing how much they’ve had to dumb the car down for people who are either stuck in the past or people who are weekend race car drivers. Mercifully, most of this garbage fakery is only really noticeable if you really flog it or put the car in “Sport” mode.