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What does Wh/Mi include?

Discussion in 'Model S' started by Steveb48, Feb 24, 2017.

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  1. Steveb48

    Steveb48 Member

    Joined:
    Aug 25, 2016
    Messages:
    25
    Location:
    San Jose Ca
    I had 2 perhaps unrelated things happen this morning.

    1) I was unable to contact the car via the app and when I got in the car, there was a message on the dash that said systems powering up. Press brake after this message goes away. The 17" display was off. It took a minute or so and then came to life. It was about 36° outside.

    2) My Wh/Mi was 410 in a 30 mile average and if I looked at the graph, it seemed to be in the 800 range for a while. After driving for a few miles it settled back to the low 300s.

    My question is, does the Wh/Mi display include all power or just propulsion? I'm guessing all power. I saw somewhere that the cabin heater is 6kw. Is there a listing of other draws like seat heaters, rear window defogger, batter heater...?
    I had the cabin heater set to 70°, the driver side seat heater on and the rear window defogger on. Was that the reason for the high consumption?

    thanks,
    Steve
     
  2. croman

    croman Active Member

    Joined:
    Nov 21, 2016
    Messages:
    3,173
    Location:
    Chicago, IL
    All power. I believe it doesn't track once car is off but while you are in any gear including park it seems to register power use.
     
  3. Nietschy

    Nietschy Member

    Joined:
    Oct 2, 2016
    Messages:
    95
    Location:
    Austria
    yes.
    and: normal
     
  4. mknox

    mknox Well-Known Member

    Joined:
    Aug 7, 2012
    Messages:
    9,892
    Location:
    Toronto, ON
    It records power coming out of the main pack whenever the car is "on". This would include topping up the 12v battery via the DC-DC converter, but again, only when the car is "on". It does not account for vampire losses when the car sits (including 12v top-ups) nor charging inefficiencies. I meter my electrical connection to the car and my "calculated" Wh/mi is at least 25% greater than what the car reports.
     

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