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evnow
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Fri Mar 18, 2011 12:01 am

garygid wrote:I believe that the Regen kWh is incorrectly handled when the "total kWh" is calculated.
The problem isn't that simple ...
1st Leaf : 2/28/2011 to 5/6/2013
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garygid
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Fri Mar 18, 2011 8:22 am

What is the problem, please?
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
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Andy
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Wed Mar 23, 2011 12:33 am

This is the response I got from Nissan support on my question about the difference between miles/kWh in Carwings and the car:
 
Thank you for taking the time to personally contact us about your interest in the Nissan Electric Vehicle.
 
Discrepancy between carwings energy economy, and the miles/kWh indicated in the car
 
I apologize for the inconvenience. The shown average energy economy is different on the vehicle and website because the vehicle calculates with power-loss in motor. However, the website excludes power-loss in motor. This is actually a known issue that we are working to correct. Unfortunately, it will take some time for this to be accomplished.  If you have any additional questions, please do not hesitate to contact us.
Blue SL ordered on 8/31/10, delivered on 1/15/11

DaveinOlyWA
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Wed Mar 23, 2011 11:22 am

Power loss? R they refering to loss from heat? Or con
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 91.51% SOH
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TomT
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Wed Mar 23, 2011 2:05 pm

I'm sorry but that makes no sense. I'm seeing a discrepancy of 50 percent or more (around 4.1 on the car and over 6.5 on Carwings). That would be a hell of a power loss!

Andy wrote:This is the response I got from Nissan support on my question about the difference between miles/kWh in Carwings and the car:
 
Thank you for taking the time to personally contact us about your interest in the Nissan Electric Vehicle.
 
Discrepancy between carwings energy economy, and the miles/kWh indicated in the car
 
I apologize for the inconvenience. The shown average energy economy is different on the vehicle and website because the vehicle calculates with power-loss in motor. However, the website excludes power-loss in motor. This is actually a known issue that we are working to correct. Unfortunately, it will take some time for this to be accomplished.  If you have any additional questions, please do not hesitate to contact us.
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
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garygid
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Fri Mar 25, 2011 9:38 pm

CARWING figures are WRONG.
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
PU: SDG&E
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Andy
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Fri Mar 25, 2011 10:37 pm

Although Nissans explanation is questionable, at least they admitted that it is a known issue that they are working to correct. How hard can it be to just send the same number that the car displays to Carwings?
Blue SL ordered on 8/31/10, delivered on 1/15/11

DaveinOlyWA
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Sat Mar 26, 2011 6:18 am

ok, Centralia trip yesterday. 65.5 miles on full charge. "10 miles" range left on return. MPK per car, 3.5 implies 18.71 KWH used. trying (for first time ever) to recharge to full from a deep discharge. i have determined that this will be only way to get good handle on charging efficiency.

i will say one time, i am starting to see what Cali Owners are seeing. despite it only being slightly warmer as spring approaches, my efficiency is going up. how do i know?

well, my CPK is dropping. went from 3.25 CPK to 3.2 CPK but my average electricity cost went UP from 10.2 CPK to 10.3 CPK at the same time. i am also averaging 5.2 -5.5 MPK on my commutes when hitting 5 was a rarity.

all of this is happening with an average temp increase of only 7-10º. can t wait till summer when most of the summer can easily be done without AC
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 91.51% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

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HIOJim
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Sat Mar 26, 2011 7:07 am

DaveinOlyWA wrote:...all of this is happening with an average temp increase of only 7-10º. can t wait till summer when most of the summer can easily be done without AC
Dave, could you also be seeing other forces at work here? I remember when I first got my Prius I saw the mpg stats increase after a month or two of 'break in'. PriusChat posters postulated that bearings, tires, etc. might be responsible for it.
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DaveinOlyWA
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Re: Miles per kwh so far... my calcs vs. the LEAFs calcs

Sat Mar 26, 2011 7:20 am

HIOJim wrote:
DaveinOlyWA wrote:...all of this is happening with an average temp increase of only 7-10º. can t wait till summer when most of the summer can easily be done without AC
Dave, could you also be seeing other forces at work here? I remember when I first got my Prius I saw the mpg stats increase after a month or two of 'break in'. PriusChat posters postulated that bearings, tires, etc. might be responsible for it.
anything is possible, but i consider that to be about 98% unlikely. i attribute the difference to much less use of climate controls. when the OAT (outside air temperature) is in the mid 50's with even minimal sun creates enough radiant warmth that even cabin heat is not needed. that is not an options when temps are in the mid 40's. now is it acclimation?

oh ya, probably. when i was in Alaska, i can remember "spring" there in May when it would be in the 20's. we would be running around without shirts on because it was so warm. now after -30 for 6 months, 20 did feel plenty warm
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 91.51% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

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