Featured Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by Gokhan, Jun 7, 2024.

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  1. Zythryn

    Zythryn Senior Member

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    I agree. I would suggest starting with the total US grid capacity, grid use, and EV electrical use. All are easily available and have been mentioned previously in this thread if you don't want to look elsewhere.
     
    #261 Zythryn, Jul 9, 2024
  2. Gokhan

    Gokhan Senior Member

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    It looks like the thermal efficiency of the engine in the new Corolla and Gen 6 Prius will be around 50%, a huge improvement from the 41% of the current engine, bringing the EPA fuel economy to around 70 mpg.

    With the Arene software platfom and TSS 4.0 and higher, which will have OTA updates, the current generation Toyotas will be outdated in a couple of years.

    Development of super-lean-burn engine with 50% thermal efficiency to achieve carbon neutrality

    The new gasoline engines will also have a slightly higher thermal efficiency than the new diesel engines.

    Toyota-led consortium reaches > 50% net maximum thermal efficiency in both gasoline and diesel cars—window-to-japan.eu

    [​IMG]

    @Salamander_King can read and summarize for us the paper in Japanese.
     
    #262 Gokhan, Jul 29, 2025 at 8:05 AM
    Last edited: Jul 29, 2025 at 8:37 AM
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  3. hill

    hill High Fiber Member

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    #263 hill, Jul 29, 2025 at 9:21 AM
  4. Gokhan

    Gokhan Senior Member

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    Gotta love those four-digit thermal-efficiency figures. Chinese excel at hyping things. The real question is, does it even work?
     
    #264 Gokhan, Jul 29, 2025 at 9:26 AM
  5. hill

    hill High Fiber Member

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    & toyo never does that

    how's that promised toyo solid state battery coming along?

    how are those toyo promised 100s of thousands of hydrogen cars doing?
     
    #265 hill, Jul 29, 2025 at 9:58 AM
  6. Trollbait

    Trollbait It's a D&D thing

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    The real question is what are the emissions? Will it require the exhaust controls of a diesel in order to pass EPA? That will increase the price and maintenance.
     
    #266 Trollbait, Jul 29, 2025 at 10:08 AM
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  7. Rmay635703

    Rmay635703 Senior Member

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    Nothing like particulate filters
     
    #267 Rmay635703, Jul 29, 2025 at 9:19 PM
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  8. Trollbait

    Trollbait It's a D&D thing

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    Gas cars are getting particle filters in Europe. The dual port/direct injection of the Dynamic Force engines is a means of avoiding that. While cheaper than the exhaust filter, it is still an added cost over using just one injection type.

    While not a major cost, adding fluid for a SCR system is a maintenance item most will not expect with a gas car.
     
    #268 Trollbait, Jul 29, 2025 at 11:22 PM
  9. Gokhan

    Gokhan Senior Member

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    Do the Toyota research papers mention particulate filters?

    More complicated emission systems have become a thing with Japanese cars since the 1970s.
     
    #269 Gokhan, Jul 30, 2025 at 4:47 AM
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