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Top 20 MPGe

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by markabele, Jul 1, 2013.

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  1. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    I unfortunately don't have the time right now to redo all of the top ten numbers. If anyone else is willing I would be grateful.
     
    #61 markabele, Jul 19, 2013
  2. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Nevermind...working on it right now. :)
     
    #62 markabele, Jul 19, 2013
  3. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Updated!
     
    #63 markabele, Jul 19, 2013
  4. retired4999

    retired4999 Prius driver since 2005

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    Cool, Thanks! :)
     
    #64 retired4999, Jul 19, 2013
  5. usbseawolf2000

    usbseawolf2000 HSD PhD

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    Just need the formula updated.
     
    #65 usbseawolf2000, Jul 19, 2013
    markabele likes this.
  6. RBooker

    RBooker Member

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    I thought this was interesting.
    Over on the Cmax Energi foroum they estimate the charging efficiency of the Energi is 61%. To calculate MPGe for they Energi they multiple kWh by 1.4.
     
    #66 RBooker, Jul 20, 2013
  7. Jeff N

    Jeff N The answer is 0042

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    That seems unlikely. Do you have a link? Which forum site (URL)?
     
    #67 Jeff N, Jul 20, 2013
  8. Jeff N

    Jeff N The answer is 0042

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    Ah, I now see where the 19% loss estimate came from on the new Volt top 10 MPGe thread. Yes, that's about right for charging at 120v as indicated by the reference to measuring this with a kill-a-watt.

    ChargePoint tells me that a full daytime (70-85F typically) charge if my 2011 Volt at 208-240v is usually 11.5-12.0 kWh (12-15% overhead) with a few 12.28 and 12.78 kWh charges in July last year. I'm guessing the higher numbers were due to especially hot weather causing the TMS system to cool the battery.

    I'll try measuring full charging sessions overnight on OnStar and daytime on OnStar at work this week (yes, we finally have 208v stations now at work!).

    I'll report my results over on the Volt top 10 thread.
     
    #68 Jeff N, Jul 20, 2013
  9. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    I doubt that you can use the full or usable battery capacity and the Chargepoint or kill-a-watt result to measure charging efficiency.
    I did it by measuring several charges, only driving in EV, and using the car reported kwh used. I got 9-10% losses from L2 on Chargepoint over 140 miles...some uncertainty because the ICE did come on briefly at 124 miles and I did need one L1 charge.

    Mike
     
    #69 3PriusMike, Jul 22, 2013
  10. Jeff N

    Jeff N The answer is 0042

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    Well, it's a bit of a guess since my 2011 Volt doesn't display the kWh drawn from the battery like the 2012 and later cars do. But, I've got the same battery pack as the 2012 and we know from documentation and experience with the 2012 cars that the typical usable capacity is around 10.3 kWh if the weather is pleasant and you are driving efficiently. The Volt doesn't stays in EV mode until the usable capacity is depleted so there is no need to worry about that.
     
    #70 Jeff N, Jul 22, 2013
  11. kurbmaster

    kurbmaster Junior Member

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    here is my screen shot
     

    Attached Files:

    #71 kurbmaster, Jul 22, 2013
  12. usbseawolf2000

    usbseawolf2000 HSD PhD

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    81.7 MPGe (137 MPGe / 57 MPG, 51% EV)

    That should put you on the #7 spot.
     
    #72 usbseawolf2000, Jul 23, 2013
  13. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Updated!

    Clearly anyone trying to get on the list now will need above a 50% EV ratio.
     
    #73 markabele, Jul 23, 2013
  14. priuskitty

    priuskitty PIP FAN

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    From April 23, 2012 to July 22, 2013 Driving Ratio from April 23, 2012 to July 22, 2013.JPG
     
    #74 priuskitty, Jul 23, 2013
  15. fortytwok

    fortytwok Active Member

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    Suggestion - instead of using HV gallons + .5 wouldn't it be much more accurate to use 10.6 (full tank) minus (the remaining tank miles divided by 50) ?

    on an HV read of 9 the formula is assuming 9.5 but it could be 9 or 9.99
    Changes the outcome by quite a bit...

    I understand that assumption of 50mpg could be anything from 45-55 but seems like that's a lot closer to accurate.
    My current (lifetime) read now shows HV = 10. Adding .5 means I'm on empty !
    Yet I have about 1.5 gallons left as evidenced by 2 gas bars and remaining tank miles of 70

    just a thought...
     
    #75 fortytwok, Jul 23, 2013
  16. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Update!

    It will now pretty much take 80 MPGe to get in the Top 10.
     
    #76 markabele, Jul 23, 2013
  17. -1-

    -1- Don

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    :)Here's mine as of this evening (072313).

    [​IMG]
     
    #77 -1-, Jul 23, 2013
  18. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Updated!

    Nice work!

    As a side note...I think I'm beginning to realize how freakish retired4999 run was. Truly unbelievable.
     
    #78 markabele, Jul 23, 2013
  19. fortytwok

    fortytwok Active Member

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    GREAT advertisement for the PiP - thats my goal for tank #2
    Tank #1 just hit 4,000 miles but just 1.5 gallons left so days are numbered ...

    http://i1329.photobucket.com/albums/w545/golfx15/photo_zps18fc9d29.jpg

    still think the calculation we're using is flawed - read says 10gallons used so adding .5 means I'm empty yet I see 70miles left....
     
    #79 fortytwok, Jul 24, 2013
  20. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    I can't see all the numbers on that pic....and is that a new entry?

    You reset the ratio screen at the same time as you filled up? Did you get a really full fill?
     
    #80 markabele, Jul 24, 2013
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