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Prius Prime Plus in my hands

Discussion in 'Prime Main Forum (2017-2022)' started by bwilson4web, Jan 19, 2017.

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  1. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    True, but parts of the dashboard are shiny black. I believe the decals are shiny too.
     
    #101 Prodigyplace, Jan 29, 2017
  2. giora

    giora Senior Member

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    This small display does not show %SOC but rather % of full charge (software full) there is an upper buffer between 100% full charge and 100%SOC.
     
    #102 giora, Jan 29, 2017
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  3. bwilson4web

    bwilson4web BMW i3 and Model 3

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    As long as all Prime are using the same scale, I see no problem. The 'head room' SOC is not usable.

    In an ideal world, I would have a 'trip meter' that reports something like kWh used over a given distance. That may exist in the Prime but the BMW i3-REx tripmeter, only one, is built around it with Teutonic precision.

    Bob Wilson
     
    #103 bwilson4web, Jan 29, 2017
  4. JamesBurke

    JamesBurke Senior Member

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    Did you see this thread from a few months back Bob?
    Prime's Charge Mode - Fast Charge? | Page 3 | PriusChat

    New to me feature "Quote between threads or just partial message text".
     
    #104 JamesBurke, Jan 29, 2017
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  5. bwilson4web

    bwilson4web BMW i3 and Model 3

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    More seat time today, I found the nav option that enables reading speed signs.

    Sad to say the manual describes how to reset the TPS after fully inflating the tires . . . the instructions for my Plus (lowest level) are wrong. This justifies registering the car with 'My Toyota' and opening a case.

    Bob Wilson
     
    #105 bwilson4web, Jan 29, 2017
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  6. Lee Jay

    Lee Jay Senior Member

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    Bob, how did you make this plot from the certification data? I can't see any data in that spreadsheet from which I could derive the above plot.
     
    #106 Lee Jay, Jan 29, 2017
  7. bwilson4web

    bwilson4web BMW i3 and Model 3

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    A work in progress, I reduced the spreadsheet to the data table and graph:
    The spreadsheet has one flaw I plan to fix (see columns S and T.) I have the roll down coefficients but only use the single set of coefficients in S5:T13. So all cars get "40%" thermodynamic efficiency and "600W" overhead. All of these parameters need to be put under the vehicle specific, roll-down coefficients and adjusted for the specific models. It is particularly obvious with the Gen-3 graph. But this much we know:
    • Gen-4 and Prime - improved engine efficiency from ~38% to ~40%
    • Gen-4 and Prime - improved transmission efficiency substantially
    • Gen-4 and Prime - I suspect have lower vehicle overhead than the Gen-3
    I suspect that if we can get accurate metrics, we can find the performance curves match the observed benchmarks. Regardless, enjoy the spreadsheet.

    Bob Wilson
     

    Attached Files:

    #107 bwilson4web, Jan 29, 2017
  8. Lee Jay

    Lee Jay Senior Member

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    Oh...okay, so no bsfc or efficiency maps can be derived from this spreadsheet - you essentially assumed one.
     
    #108 Lee Jay, Jan 29, 2017
  9. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Actually I used values previously reported by Toyota and my own engineering estimates. The PRIME curve pretty well fits two data points at 28 mph and 60 mph. I have one Gen-4 data point for the Level 3-4 and a more extensive set for the Gen-3. So I'll adjust the coefficients to match the benchmarks.

    Bob Wilson
     
    #109 bwilson4web, Jan 29, 2017
  10. bestmapman

    bestmapman 04, 07 ,08, 09, 10, 16, 21 Prime

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    Congrats Bob
     
    #110 bestmapman, Jan 29, 2017
  11. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Ok, fixed the spreadsheet:
    [​IMG]

    Bob Wilson
     
    #111 bwilson4web, Jan 30, 2017
    Lithium MPG, EV-ish, Prius Maximus and 1 other person like this.
  12. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    I must not know how to read that. Is it saying the 2 ECO gets over 110 mpg at 20 mph?
     
    #112 Prodigyplace, Jan 30, 2017
  13. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Based on the spreadsheet model:
    • ~122 MPG @21-22 mph - Level 2 ECO
    • ~115 MPG @20 mph - Prius Prime
      • 105.5 MPG @28 mph for 10.5 miles
      • 55.7 MPG @60-65 mph for 1,200 miles
    • ~105 MPG @25 mph - Gen-3 Prius
      • 99 MPG @25 mph, limit of vehicle meter
    Bob Wilson
     
    #113 bwilson4web, Jan 30, 2017
  14. bwilson4web

    bwilson4web BMW i3 and Model 3

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    After a cold soak to 32F and having filled the tires on Sunday, I tried my local roll-down slope. The car was doing 14 mph when I reached the stop sign. This suggests the Prime has unusually low rolling resistance ... very nice!

    Bob Wilson
     
    #114 bwilson4web, Jan 30, 2017
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  15. EV-ish

    EV-ish Active Member

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    yes
     
    #115 EV-ish, Jan 30, 2017
  16. EV-ish

    EV-ish Active Member

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    Engineering magic, pure and simple
     
    #116 EV-ish, Jan 30, 2017
  17. Lee Jay

    Lee Jay Senior Member

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    Bob, have you seen a thing like this for the 2016+ (4th generation) with all the improvements to get to 40% thermal efficiency?

    ToyotaPrius2Prius3_Motor_bsfc_010.jpg
     
    #117 Lee Jay, Jan 30, 2017
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  18. EV-ish

    EV-ish Active Member

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    Just as impressive, or perhaps more, is the expanded 230 gram/kWh island.
     
    #118 EV-ish, Jan 30, 2017
  19. Lee Jay

    Lee Jay Senior Member

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    That was for gen 3 (2010).
     
    #119 Lee Jay, Jan 30, 2017
  20. Lee Jay

    Lee Jay Senior Member

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    The only thing I've seen is this:

     
    #120 Lee Jay, Jan 30, 2017
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