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How the iForce MAX system works (Toyota video)

Discussion in '4th Gen. Tacomas (2024+)' started by stevesnj, Aug 1, 2023.

  1. Aug 21, 2023 at 12:35 PM
    #21
    OpeCity

    OpeCity Well-Known Member

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    If you are climbing a mountain pass for 15 uninterrupted minutes at 5000+rpm and full throttle, how tall is that pass?
     
  2. Aug 22, 2023 at 7:02 AM
    #22
    ItalynStylion

    ItalynStylion Sounds Gooooood

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    11,300ft at the top. And yeah, it's a long pass. Google Monarch Pass. And there are plenty of others like it. It's rough up there an NA engines really suck for the purpose.
     
  3. Aug 22, 2023 at 7:33 AM
    #23
    OpeCity

    OpeCity Well-Known Member

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    Oh that is way up there. I guess I very rarely pull at full throttle and rpm for that long, but even so the turbo 4 will vastly improve the experience after the battery depletes

    and the 8 speed should help, too
     
  4. Aug 22, 2023 at 8:28 AM
    #24
    stevesnj

    stevesnj [OP] Well-Known Member

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    The battery doesn't deplete it's constantly charged from the generator.
     
  5. Aug 22, 2023 at 8:32 AM
    #25
    OpeCity

    OpeCity Well-Known Member

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    Right but if the system is giving 278hp from ICE and 48hp from electric, the 48hp still has to come from the ICE side once you deplete 1.87kwh of battery, which happens in about 3 mins at 48hp.

    so a full throttle pull for 15 minutes would either have you running on less than full rated power (that was the question originally), or the system is actually a 326hp rated ICE engine.
     
  6. Aug 22, 2023 at 8:34 AM
    #26
    stevesnj

    stevesnj [OP] Well-Known Member

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    Okay, once again, the generator is always charging the battery. That's why it's so small. It can easily and quickly be in a state of charge. Again....the battery is always charged!!!
     
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  7. Aug 22, 2023 at 8:36 AM
    #27
    OpeCity

    OpeCity Well-Known Member

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    Right but that energy isn’t free. It takes power to spin the generator. So to constantly produce 48hp from the electric side, it requires 48hp (plus efficiency losses) from the ICE engine

    not a problem in normal driving because people don’t often use full power for 3+ mins, but the original question was about such a scenario
     
  8. Aug 22, 2023 at 8:37 AM
    #28
    stevesnj

    stevesnj [OP] Well-Known Member

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    So, it still puts out the power. Why do you dispute every fact and spin it to your world? Very odd.
     
  9. Aug 22, 2023 at 8:42 AM
    #29
    OpeCity

    OpeCity Well-Known Member

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    I didn’t “dispute” any fact. I responded to this question:

    with an explanation of why there are situations —that are highly improbable—in which rated power wouldn’t be available.

    I even pushed back against the idea that it would ever be an issue, but one guy apparently runs full throttle at max RPM for 15 minutes regularly, so there we go
     
  10. Aug 22, 2023 at 8:49 AM
    #30
    stevesnj

    stevesnj [OP] Well-Known Member

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    Right, I have the factual response I believe even referenced in the video but you still 2nd guess.
     
  11. Aug 22, 2023 at 8:54 AM
    #31
    OpeCity

    OpeCity Well-Known Member

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    The video doesn’t cover that specific situation. In normal driving, I agree that zero people will ever experience anything but rated power.

    but it’s not possible to do so for the hypothetical 15 minutes at full throttle and RPM, so there are edge cases where power is less. That’s the answer to the question to which I responded
     
  12. Aug 22, 2023 at 10:08 AM
    #32
    ItalynStylion

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    You keep saying that but I've yet to find any information that supports that claim. Where did you see that stated by Toyota or another equally reputable source? It's not in the video. The video specifically states, "the motor/generator works with the internal combustion engine to drive the wheels as well as regenerate electricity when costing or braking for maximum efficiency."

    Asking because almost no hybrid systems work the way you described. Most hybrids use electrical energy from the battery to meet high demand for power where the engine alone is inadequate or inefficient. As an example, starting from a dead stop in first gear is the least efficient way to use an ICE engine. So many hybrids get you off the line and the engine kicks in once you're moving. Another typical use case is when the user asks for a large amount of power very quickly (AKA: WOT) and the vehicle gives it everything it has. The last scenario is why Toyota is claiming a "combined" output of 326 hp / 465 lb-ft.
     
  13. Aug 22, 2023 at 10:10 AM
    #33
    stevesnj

    stevesnj [OP] Well-Known Member

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    This isn't a typical hybrid like a Prius or Camry. They have larger batteries while this type of system supplements the ICE engine with extra HP and torque when demanded of it.
     
  14. Aug 22, 2023 at 10:31 AM
    #34
    ItalynStylion

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    Cite your source for what you're claiming about the battery always being charged. The video you posted doesn't support that claim and this is supposed to be a thread clearing up confusion about the system and how it works (per your first post).
     
  15. Aug 22, 2023 at 10:54 AM
    #35
    JB_TN

    JB_TN Well-Known Member

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    Start at 5:30. It may answer some questions.


     
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  16. Aug 22, 2023 at 11:47 AM
    #36
    OpeCity

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    In case he doesn’t click to watch; at that time stamp:

    “if the battery is depleted, you still have the horsepower and torque output of the twin turbo v6, which is still pretty high.”
     
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  17. Aug 22, 2023 at 11:52 AM
    #37
    ItalynStylion

    ItalynStylion Sounds Gooooood

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    This vid is also quite good. He covers a lot of details (like the fact the AC compressor is electric and there's no alternator). His verbal cadence is a bit slow so you can increase the speed.
    https://www.youtube.com/watch?v=bkXiYiGWZnE
     
  18. Aug 22, 2023 at 12:14 PM
    #38
    stevesnj

    stevesnj [OP] Well-Known Member

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    Well I read on Toyotas site that the battery is always in a charged state that's why I said this. If I'm wrong my bad. I was only quoting what I read. I will try and find it. Not a big deal really.
     
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  19. Aug 22, 2023 at 1:52 PM
    #39
    OpeCity

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    Oh I’m sure that it is. It’s a truly insane situation to drive at full throttle at max rpm without ever lifting your foot at all.
     
  20. Aug 22, 2023 at 2:58 PM
    #40
    batacoma

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