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Understanding the Toyota RAV4 Hybrid

WeberAuto · lecture · Watch on YouTube

Cars, EVs & motorcyclesMechanical & precision engineering

What it is

Weber State's Professor Kelly explains the Toyota RAV4 Hybrid transaxle, including its planetary gearset eCVT and all nine operating modes. It also covers how the engine reaches nearly 40 percent thermal efficiency.

Why Hacker News recommends it

HN points to it as the clearest hands-on explanation of how Toyota hybrids work.

  • 3 people recommended it
  • 3 different months
  • 1 strong recommendations
  • first 2023, last 2026

What HN commenters said

  1. “I understood after I watched the brilliant Weber Auto video on it, published 5 years ago[0].”

    Made the point of hybrids click

    globular-toast, 2026-05 · Strong recommendation · in “Nobody understands the point of hybrid cars [video]”

  2. “Weber Auto giving an extensive hands on explanation.”

    Extensive hands-on explanation of Toyota hybrid system

    somerandomqaguy, 2023-07 · Recommendation · in “Toyota Is Right: We Need More Hybrid Cars and Fewer EVs. Here’s Why”

  3. “long educational video from Weber State University that gives a good walkthrough”

    Educational walkthrough of planetary gear hybrid drivetrains

    hedgehog, 2025-12 · Recommendation · in “Ford kills the All-Electric F-150”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: hybrid, ecvt, planetary gears, transaxle, toyota

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