Cor,
So, just to make sure I understand, you have 8 capacity bars, which
you're assuming is
100% - 15% - 3 * 6.25% = 66% of 24 kWh, or about 16 kWh, correct?
In my case, with between 8 and 9 capacity bars, that would be
100% - 15% - 2.5 * 6.25% = 69%,
or 24 kwh * 69% = 16.5 kWh.
My estimate for the range remaining doesn't change - I used the table
in
the link below and did not assume them to be linear. So the rest of my
calculations are unchanged.
Still results in 3.5 kWh being "lost" somewhere.
If someone local (Seattle) has a gid meter and is willing to lend it,
I
might be able to get some more accurate extrapolations. At least I'd
know the true capacity and the true amount of energy used, right?
Peri
------ Original Message ------
From: "Cor van de Water via EV" <ev@lists.evdl.org>
To: "Electric Vehicle Discussion List" <ev@lists.evdl.org>
Cc: "Cor van de Water" <cor.vandewa...@gmail.com>
Sent: 04-Dec-18 6:48:24 PM
Subject: Re: [EVDL] poor 2011 Leaf performance
>Capacity bars are not linear.
>The 12 bar display is actually anything from 85% to 100% capacity.
>Below that, every bar stands for 6.25% if I am not mistaken (quoting
>from memory)
>So 7 bar capacity can be as low as 100 – 15 – 4 x 6.25% = 60% so less
>than 15kWh.
>Also, there is a reason it is called the GOM (Guess-O-Meter).
>My Leaf has 8 capacity bars. I can drive home and go from 12 quickly
to
>10 or 9 and then arrive home with only 6 or 7 bars left.
>Then drive to work starting with that half charge and arrive at work
>with still 3 bars left….
>I have noticed that range bars are not linear, so you can’t say X
bars
>is so many kWh left.
>GIDs are a better measurement, so use LeafSpy and you can much better
>judge what your Leaf is doing.
>Hope this helps,
>Cor.
>
>Sent from Mail for Windows 10
>
>From: Peri Hartman via EV
>Sent: Tuesday, December 4, 2018 6:13 PM
>To: Electric Vehicle Discussion List
>Cc: Peri Hartman
>Subject: [EVDL] poor 2011 Leaf performance
>
>Anyone want to take a stab at this mystery - poor performance of my
>2011
>Leaf ?
>
>Temp about 45F
>Heat on: drawing average of about 1 kW
>"other systems" drawing about .25 kW
>Drove 14 miles, went from 12 range bars to 5 bars (full charge level
is
>9 capacity bars)
>Average 3.2 miles / kWh
>Duration about 1 hr.
>Driving pretty carefully - usually only 2 "balls" on the usage meter.
>
>For electrical systems, I estimate I used about 1.25 kWh.
>For traction, 14 / 3.2 = about 4.5 kWh
>Total: 5.75 kWh.
>
>According to
>https://electrolease.nz/blog/nissan-leaf-range-charts-and-tables.html
>5 bars equates to about 45% charge remaining.
>
>Assuming that the capacity bars are linear and I'm between 8 and 9,
the
>battery should have somewhere near 17 kWh (24 originally).
>
>45% of that is about 7.5 kWh remaining charge.
>Add in what I've used, 5.75, makes 13.25 kW - but should be around
17.
>
>Plus extrapolating the mileage: 14 / 45% = 31 miles estimated total
>range.
>
>What happened to the other 4 kWh?
>
>And, am I the only one who get 31 miles per charge? This Leaf has had
>miserable winter range since the beginning. Still don't know why.
>
>Peri
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