100 Mile Club, 200 km, 300 km, 200 Mile Club (24kWh LEAF)
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surfingslovak
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Indeed, in my recent test runs the Leaf could travel a mile or two after the first power bubble disappeared. There is less than 0.5kWh of available energy in the battery at that point, so it depends on how fast you are going.drees said:
The model I built for the reverse SOC meter thread predicts LB at 102 miles, VLB at 120 and turtle at 127 miles for N1ghtrider's latest trip. Assuming the same overall energy efficiency and 21 kWh of available capacity. Considering Tony's comment, I think the VLB to LB ratio is off a bit in the model. It's about 44%, which is on the low side.
Although we are having some difficulty to reconcile the data, congratulations N1ghtrider. Well done! Amazing work.
N1ghtrider
Well-known member
Tony:
I don't know how to IM, but my size is XXL (or XL if that is the largest you have) and my favorite color is blue. I will take a picture of the odometer after changing the setting to metric (as I rode my Harley to work today instead of driving the Leaf, so the mileage has not changed).
The temperature was from 65 to 75 for all of the trips on this charge.
On the data discrepancy, it may have been more than 114 miles when VLB came on, as I made a mental note when it happened, but then my memory got a little fuzzy as I experienced the delight in passing 200 km. I will write it down immediately next time. The 103 for LB is absolutely correct.
Roy
I don't know how to IM, but my size is XXL (or XL if that is the largest you have) and my favorite color is blue. I will take a picture of the odometer after changing the setting to metric (as I rode my Harley to work today instead of driving the Leaf, so the mileage has not changed).
The temperature was from 65 to 75 for all of the trips on this charge.
On the data discrepancy, it may have been more than 114 miles when VLB came on, as I made a mental note when it happened, but then my memory got a little fuzzy as I experienced the delight in passing 200 km. I will write it down immediately next time. The 103 for LB is absolutely correct.
Roy
drees said:He still had all his power bubbles, so who knows how much farther he could have gone.TonyWilliams said:Nicely done!
This was my thought. He's in VLB but has not lost any power bubbles yet. I lost my first bubble in VLB at about 6.5 miles with a 5.3 m/kWh trip average. So methinks if he hadn't lost any power bubbles, he had a bit to drive before turtle... or as Tony points out, temperature plays a much bigger factor on the behavior of the car than we realized.
surfingslovak
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Thank you for sharing this. Your data would imply about 1.6 kWh of usable capacity in VLB. Is it safe to assume that you charged to 100%? I believe that Roy's trip data implies at least 2 kWh available energy, which is relatively high.TNleaf said:
surfingslovak said:
Yes it was a 100% charge. I documented that event in this thread
http://www.mynissanleaf.com/viewtopic.php?f=27&t=7022&start=40#p155369" onclick="window.open(this.href);return false;
On that instance (100% charge), I didn't hit turtle, but noticed a loss of the far right power bubble before driving 6.5 miles in VLB. The overall charge economy was 5.3, but for the last 13 miles (I reset the NAV reading) I was getting 6.3 m/kWh.
surfingslovak
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Yes, thank you for pointing that out. That's a great trip report. I was curious how well the rough model we came up with in the other thread would work with your data set. It appears that your available battery capacity is about 10% higher than mine. I factored this difference it into the trip energy economy, and made it 10% higher. It looks like the model is 2 miles off. It predicts LB at 96 miles and VLB at 112 miles. Pretty close, but no cookie. At least not yet.TNleaf said:Yes it was a 100% charge. I documented that event in this thread
http://www.mynissanleaf.com/viewtopic.php?f=27&t=7022&start=40#p155369" onclick="window.open(this.href);return false;
It seems like I need to make the spreadsheet smarter and allow available battery capacity as a parameter. Out of curiosity, what was the ambient temperature in early December where you live?
Click to open
N1ghtrider
Well-known member
"I will take a picture of the odometer after changing the setting to metric"
It does not change the trip meter miles already logged to meters when the settings are changed, so we will just have to mathematically extrapolate the metric distance..
It does not change the trip meter miles already logged to meters when the settings are changed, so we will just have to mathematically extrapolate the metric distance..
TonyWilliams
Well-known member
N1ghtrider said:
Ok, I think the biggest I have is XL, but they are big ! 100% organic 5 ounce cotton. Just email me your address at:
TonyWilliams
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Perfect~~~~ Almost perfect 21kWh in the battery, which checks good with the temp.
Ok, thanks for clarifying. That's why I use Trip A and B !!
The 22 miles you drove after 103 is logical, so we'll just have to assume that the VLB was probably at 116.5-ish, which would also be logical (13.5/8.5 split, LBW to VLB to Turtle).
Nekota
Well-known member
surfingslovak said:Yes, thank you for pointing that out. That's a great trip report. I was curious how well the rough model we came up with in the other thread would work with your data set. It appears that your available battery capacity is about 10% higher than mine. I factored this difference it into the trip energy economy, and made it 10% higher. It looks like the model is 2 miles off. It predicts LB at 96 miles and VLB at 112 miles. Pretty close, but no cookie. At least not yet.TNleaf said:Yes it was a 100% charge. I documented that event in this thread
http://www.mynissanleaf.com/viewtopic.php?f=27&t=7022&start=40#p155369" onclick="window.open(this.href);return false;
It seems like I need to make the spreadsheet smarter and allow available battery capacity as a parameter. Out of curiosity, what was the ambient temperature in early December where you live?
I see 6 bars on N1's temp gauge - maybe that 'coarse' reading will be enough?
surfingslovak said:Yes, thank you for pointing that out. That's a great trip report. I was curious how well the rough model we came up with in the other thread would work with your data set. It appears that your available battery capacity is about 10% higher than mine. I factored this difference it into the trip energy economy, and made it 10% higher. It looks like the model is 2 miles off. It predicts LB at 96 miles and VLB at 112 miles. Pretty close, but no cookie. At least not yet.TNleaf said:Yes it was a 100% charge. I documented that event in this thread
http://www.mynissanleaf.com/viewtopic.php?f=27&t=7022&start=40#p155369" onclick="window.open(this.href);return false;
It seems like I need to make the spreadsheet smarter and allow available battery capacity as a parameter. Out of curiosity, what was the ambient temperature in early December where you live?
That week of driving the LEAF battery temp display was always 4 or 5 bars. TN weather is ever so crazy, it ranged from 35F days to 65F days that week. Most of the driving (including the last morning) it was closer to 40F (4 temp bars on the battery).
DaveinOlyWA
Well-known member
TNleaf said:surfingslovak said:Yes, thank you for pointing that out. That's a great trip report. I was curious how well the rough model we came up with in the other thread would work with your data set. It appears that your available battery capacity is about 10% higher than mine. I factored this difference it into the trip energy economy, and made it 10% higher. It looks like the model is 2 miles off. It predicts LB at 96 miles and VLB at 112 miles. Pretty close, but no cookie. At least not yet.TNleaf said:Yes it was a 100% charge. I documented that event in this thread
http://www.mynissanleaf.com/viewtopic.php?f=27&t=7022&start=40#p155369" onclick="window.open(this.href);return false;
It seems like I need to make the spreadsheet smarter and allow available battery capacity as a parameter. Out of curiosity, what was the ambient temperature in early December where you live?
That week of driving the LEAF battery temp display was always 4 or 5 bars. TN weather is ever so crazy, it ranged from 35F days to 65F days that week. Most of the driving (including the last morning) it was closer to 40F (4 temp bars on the battery).
i must be suffering from battery degradation. i cant get nowhere near that performance and my temps are not that different from yours. last year when Leaf was a month old, i did a 130 mile trip (with charging). will be doing the same next weekend. will be interesting to see how much of a charge i will need to make the trip. last time was total of about 2¼ hours.
BrainDonor
Well-known member
Dave, have you had your 1-year battery check yet? It'd be interesting to see what it says.DaveinOlyWA said:
DaveinOlyWA
Well-known member
BrainDonor said:
my anniversary date is Wed the 18th. just rolled 12,000 miles. i hope to have it done within next few weeks. i am guessing i have some degradation but not enough to warrant the "FYI" oh well...maybe next year.
i am seriously comtemplating getting a real analysis done for cost if its reasonable enough.
i guess i should start a thread to find out what people would pay
N1ghtrider
Well-known member
Tony:
My "Love my Leaf" t-shirt arrived and it is great. Thank you.
My "Love my Leaf" t-shirt arrived and it is great. Thank you.
TonyWilliams
Well-known member
N1ghtrider said:Tony:
My "Love my Leaf" t-shirt arrived and it is great. Thank you.
Glad you like it. I can confidently say that you're the first one in Florida with one!
I'm almost afraid to suggest a longest range challenge, because I think you'll blow the 135 mile record out of the water!
Tony
N1ghtrider
Well-known member
It may be awhile before I win the long range challenge but I am shooting to beat my personal record on the current charge. In other news, on another thread a member named Eniac reports:
A reporter, Nick Chambers, drove 116.1 miles on a LEAF test drive back in Oct 2010. I've driven 111 miles once (100% charge), a year ago.
I suppose that Eniac should be added to the 100 mile club.
A reporter, Nick Chambers, drove 116.1 miles on a LEAF test drive back in Oct 2010. I've driven 111 miles once (100% charge), a year ago.
I suppose that Eniac should be added to the 100 mile club.
TomT
Well-known member
Unfortunately, there have now been enough battery checks to let us know that it shows very little (to us, at least). For capacity, it shows the same 12 divisions as the tick marks to the right of the 12 SOC bars, and the first one does not extinguish until you drop something like 15 percent in capacity...
BrainDonor said:
TonyWilliams
Well-known member
N1ghtrider said:
I posted this over on the other thread:
This run by Nick was done in Oct 2010, months before the first LEAF delivery. Because he drove 116 miles at 5.1 miles/kWh, that means there was 22.7kWh in the battery to use.
What was the ambient air temperature during this run ? We don't know, but considering when and where it was done, I don't think it was over 100F/40C. Because it was driven by a pre-production car, I suspect that the cell voltages were at 4.2v per cell, and not the 4.1v of the production car.
There are references in some of the documents to a 403v battery (96 cell pairs * 4.2v), but the current production car has about 21kWh available at 70F/20C temperature, and has 393.5v with 4.1v per cell. That capacity decreases about 1% per 4F/2C temperature decrease below 70F/20C.
Nick's calculated battery capacity of 22.7kWh (8% above 21kWh) is significantly above that standard, and could be explained either by higher cell voltage, or extreme battery temperature of over 100F/40C.
N1ghtrider
Well-known member
Tonight I beat my own record by reaching 130 miles (209.4 km) on a single charge. It took me 4 days of driving my usual crosstown trips in city traffic. The temps were 65 to 75 degrees so I did not use climate control. I did not go on interstate.
I averaged 6.4 m/kwh. I hit low batt at 105.8 miles (when GOM showed 13 miles left), and VLB at 121 miles.
It took me 4 days of driving my usual crosstown trips in city traffic. The temps were 65 to 75 degrees so I did not use climate control. I did not go on interstate. I averaged 6.4 m/kwh. I hit low batt at 105.8 miles (when GOM showed 13 miles left), and VLB at 121 miles.
