TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Real World Range Calculations

Discussion in 'Model S' started by NigelM, Jun 19, 2012.

  1. NigelM

    NigelM Recovering Member

    Joined:
    Apr 3, 2011
    Messages:
    13,257
    Location:
    Sarasota, FL
    Thanks to *AnOutsider* over here for finding the pics of Jurvetson's Founders #1. I figured that one aspect - real world range - will motivate enough discussion to start a new thread.

    Here's the source pic:
    IMG_05282.jpg

    Now it appears from the acceleration spikes that Jurvetson has been enjoying his new car and probably showing off some (BTW, these spikes will look absolutely normal to Roadster owners!). However the average Wh/mile is still only 309, so on a simplistic level he has an 85kWh battery pack with 309Wh/mile which equals a range of 275 miles based on that style of driving. That would be an amazing range under those conditions.

    P.S. The more technically gifted TMC-er's are invited to dissect these numbers in a more scientific manner.
     
  2. Adm

    Adm Active Member

    Joined:
    Jun 7, 2010
    Messages:
    1,048
    Location:
    The Netherlands
    Assuming he's still on his first full charge here he's got 143 + 123 = 266mi on a charge. Again assuming he's been doing some serious test driving, than that is not bad at all!
     
  3. Hache

    Hache Member

    Joined:
    Oct 28, 2010
    Messages:
    74
    Off-topic, but very nice to see that the screen is readable even with the reflexion of trees on the left side. :wink:
     
  4. NigelM

    NigelM Recovering Member

    Joined:
    Apr 3, 2011
    Messages:
    13,257
    Location:
    Sarasota, FL
    Serious test driving? Look how that third spike goes off the display.... :biggrin:
     
  5. Zextraterrestrial

    Joined:
    Mar 11, 2010
    Messages:
    3,636
    Location:
    Humboldt/Los Altos
    #5 Zextraterrestrial, Jun 19, 2012
    Last edited: Jun 19, 2012
    So what is the 75 on the right?

    present use? while it is not moving

    so Wh/ mile while stopped will be strange due to not moving? or is it W/hr when not moving
     
  6. ElSupreme

    ElSupreme Model S 03182

    Joined:
    Jan 13, 2012
    Messages:
    4,279
    Location:
    Atlanta, GA
    It is a Wh/mile calculation so it is probably the moving average over the last 100 feet or so.
     
  7. Zextraterrestrial

    Joined:
    Mar 11, 2010
    Messages:
    3,636
    Location:
    Humboldt/Los Altos
    makes sense
     
  8. dsm363

    dsm363 Roadster + Sig Model S

    Joined:
    May 17, 2009
    Messages:
    18,235
    Location:
    Las Vegas, NV
    #8 dsm363, Jun 19, 2012
    Last edited: Jun 19, 2012
    It looks like it says past 5 miles in the picture. Roadster has 5, 15 or 30 miles you can select from.
     
  9. ElSupreme

    ElSupreme Model S 03182

    Joined:
    Jan 13, 2012
    Messages:
    4,279
    Location:
    Atlanta, GA
    Right the whole graph is the last 5 miles (from what appears on the dash) but the dot and 75 on the right edge is the instantaneous Wh/mile, which is probably the energy usage over the last bit of distance. Which is why it is still displayed when the car is stopped.
     
  10. Blurry_Eyed

    Blurry_Eyed MS Sig #267, MX Sig # 761

    Joined:
    Dec 29, 2011
    Messages:
    561
    I believe the terrain in the area that Jurvetson would be driving is probably relatively flat, so that may be a factor in the pretty good Wh/Mile number on his screen. It is nice to see a real world number that matches up with the 300 Wh/Mile figure that Tesla provided as a baseline.
     
  11. rsquared99

    rsquared99 Member

    Joined:
    Jan 10, 2008
    Messages:
    239
    Location:
    Surprise AZ
    Is that top right tire symbol an indication of TPMS alarms? I hope this isn't a carry over from the Roadster, an annoying issue if it is.
     
  12. strider

    strider Active Member

    Joined:
    Oct 20, 2010
    Messages:
    2,918
    Location:
    NE Oklahoma
    Well, it isn't the alps but I would assume that since he's quite wealthy he would live in the hills above Menlo Park/Palo Alto, Woodside, Saratoga, Los Altos Hills, etc. There are some pretty steep hills back there (take Page Mill or Alpine Rd West from 280). All guessing on my part and I can't be bothered to try and figure out where he lives but I think this is good news on the real-world range front.
     
  13. 3lectronica

    3lectronica Member

    Joined:
    Apr 11, 2011
    Messages:
    82
    Don't forget, Model S offers two driving modes; Standard or Range. If he is in Standard mode, then there is a 10% "reserve" that is not shown in the range calculation.
     
  14. mcornwell

    mcornwell Active Member

    Joined:
    Dec 20, 2010
    Messages:
    1,016
    Location:
    USA
    For those into cyberstalking, this site shows about 6 addresses for him in Los Altos, Palo Alto, Redwood City and Walnut Creek. I'm guessing if someone was *really* curious they could cross reference the property tax database and see which one(s) he currently owns, then put the address into Google Earth and find out the elevation. :smile:
     
  15. NigelM

    NigelM Recovering Member

    Joined:
    Apr 3, 2011
    Messages:
    13,257
    Location:
    Sarasota, FL
    The mileage in the bottom LH corner shows 343, not 143. Besides he'd already had the car like a week or so by then so he wouldn't still be running on the first charge.
     
  16. Tommy

    Tommy Member

    Joined:
    Mar 3, 2010
    Messages:
    880
    Location:
    The great OC
    Well, one thing's for sure, it was hot that day; shows 95F.....thou some folks might say that's cool where I live!!!:biggrin:
     

Share This Page