LEAFer
Well-known member
My "Week With GIDs" ;-) Or "Giddy Week" if you prefer.
Also cross-posted a link in a couple of other threads to this completed data report. And now it's "Geeks Go Hog Wild With Giddy Data". Have at it and figure out what you can. My apologies in advance as to the length of this post.
Borrowed a GID meter on Wednesday 11/7 and have been recording various daily events, including a Range Test today and a subsequent Turtle-to-100% Fill Up.
Background: This is an early LEAF with a relatively high odometer in the Sacramento Area, which can get hot. It's not Phoenix, but a couple of months this summer were pretty continuously hot. We have GeekEV that has reported a lost a capacity bar in this area, but our LEAF still has all 12. Summer 2011 was relatively mild here. However, after a hot 2012 August & September here it felt like (subjectively) that range was suffering. In October I performed two Turtle-to-100% runs and associated unscientific range report (here and here). The data seemed to imply a 15% range loss and the surprise was how could this LEAF *not* have lost its top capacity bar.
Having access to Tony's GID meter from the BC2BC return tour at the end of June gave the results shown in the signature (259). I have not yet found a post I (may have) made for that measurement. Given the 259 reading it was felt that significant loss due to August & September heat had occurred by the time October rolled around.
So ... here's the Giddy Data ... (large spreadsheet ... also posted on GoogleDocs here) ...
And now to today's unscientific Range Test. Ideally I could duplicate Tony's Phoenix Range Test, but for several reasons that's pretty much impossible without an inordinate amount of time/effort/coordination I don't have right now. Mostly, due to where we live (9 miles from freeway) it's hard to stick to a continuous 100km/h. Secondly I wanted to do an accurate subsequent fill-up to 100%. So, yes, I made some very specific compromises, but nevertheless came up with some useful info to complete the "Giddy Data".
Cold Tire Pressure: 40 psi (rather than 36), but ambient Temps much cooler (low 60s, rather than mid 80s (IIRC)). First 9 miles: 5 stop signs, 2 lights (both hitting red when I got there), but in-between: 62mph. Freeway: pretty much continous 100km/h (plus/minus); most of the time I was watching the geeky sensor data (Vgs=1000), and had to alternate on CruiseControl between 63mph (Vgs 988-992) & 64mph (Vgs=1006-1009). I tried hard not to draft or be too close to vehicles ahead. Negligible wind. Overcast. No HVAC use. NAV on, Radio off. At mile 33 did my freeway turn-around. At mile 52.5 rebooted the NAV (losing sensor data). At 60.8 miles exited freeway. Surface roads with 4 stop signs within a mile. Then back to 63mph on country roads. At 62.3 miles (47gids) LBW. At 64.8 (29 gids; with 7+ miles to go) I finally chickened out ( I am adverse to tows ) and killed the CruiseControl as I watched the GIDs drop quickly; apparently quicker than before. Now set CC=25mph. VLBW at 67.2 miles (24gids). Continued with CC=25mph. At 71.9 miles/16 gids reached my private road turn-off; continued at 25mph on CC. After a mile or so started varying the speed up to 35mph to reach powerlimits (lost power circles). This happened at 74.1miles/10 gids. Shifted to ECO (for the first time) and resumed 25mph. Reached home at 75.3miles/7 gids. With ECO mode still engaged, turned on heater; after 2 minutes turtle popped-up. Power-off.
Until the point of cancelling CruiseControl (2.5 miles past LBW) EE=4.0miles/kWh, Dist=64.8 Gids=29 AvgSpeed=43.6.
(Below spreadsheet is at GoogleDocs here.)
And here are two items from Carwings. I don't have the latest updates, so I believe the data is inaccurate, but I am providing it FWIW. Notice the discrepancies in EE (EnergyEconomy, miles/kWh) between CW and the dash. Also notice the missing miles due to Nav Reboot (I was watching the Sensor data) at 52.5 miles. The GoogleDocs version is here.
Edit 16Nov2012 10:14: The kWh data comes from a CT-500 tied into a ChargePoint Network account and is believed to be trustworthy. Charging typically at 242V (239-244), topping out somewhere between 3.68-3.70kW. The OAT data is from the LEAF and relatively unreliable in cases where the car has been at rest for an extended period of time -- see time stamps recorded and notes in the Comment field.
Edit 17Nov2012 08:10 GID meter is being returned today (Saturday). Final data points above. I will add a few edits to clarify or pontificate ;-)
Edit: 19Nov2012 10:48: Added Carwings Data.
Also cross-posted a link in a couple of other threads to this completed data report. And now it's "Geeks Go Hog Wild With Giddy Data". Have at it and figure out what you can. My apologies in advance as to the length of this post.
Borrowed a GID meter on Wednesday 11/7 and have been recording various daily events, including a Range Test today and a subsequent Turtle-to-100% Fill Up.
Background: This is an early LEAF with a relatively high odometer in the Sacramento Area, which can get hot. It's not Phoenix, but a couple of months this summer were pretty continuously hot. We have GeekEV that has reported a lost a capacity bar in this area, but our LEAF still has all 12. Summer 2011 was relatively mild here. However, after a hot 2012 August & September here it felt like (subjectively) that range was suffering. In October I performed two Turtle-to-100% runs and associated unscientific range report (here and here). The data seemed to imply a 15% range loss and the surprise was how could this LEAF *not* have lost its top capacity bar.
Having access to Tony's GID meter from the BC2BC return tour at the end of June gave the results shown in the signature (259). I have not yet found a post I (may have) made for that measurement. Given the 259 reading it was felt that significant loss due to August & September heat had occurred by the time October rolled around.
So ... here's the Giddy Data ... (large spreadsheet ... also posted on GoogleDocs here) ...
And now to today's unscientific Range Test. Ideally I could duplicate Tony's Phoenix Range Test, but for several reasons that's pretty much impossible without an inordinate amount of time/effort/coordination I don't have right now. Mostly, due to where we live (9 miles from freeway) it's hard to stick to a continuous 100km/h. Secondly I wanted to do an accurate subsequent fill-up to 100%. So, yes, I made some very specific compromises, but nevertheless came up with some useful info to complete the "Giddy Data".
Cold Tire Pressure: 40 psi (rather than 36), but ambient Temps much cooler (low 60s, rather than mid 80s (IIRC)). First 9 miles: 5 stop signs, 2 lights (both hitting red when I got there), but in-between: 62mph. Freeway: pretty much continous 100km/h (plus/minus); most of the time I was watching the geeky sensor data (Vgs=1000), and had to alternate on CruiseControl between 63mph (Vgs 988-992) & 64mph (Vgs=1006-1009). I tried hard not to draft or be too close to vehicles ahead. Negligible wind. Overcast. No HVAC use. NAV on, Radio off. At mile 33 did my freeway turn-around. At mile 52.5 rebooted the NAV (losing sensor data). At 60.8 miles exited freeway. Surface roads with 4 stop signs within a mile. Then back to 63mph on country roads. At 62.3 miles (47gids) LBW. At 64.8 (29 gids; with 7+ miles to go) I finally chickened out ( I am adverse to tows ) and killed the CruiseControl as I watched the GIDs drop quickly; apparently quicker than before. Now set CC=25mph. VLBW at 67.2 miles (24gids). Continued with CC=25mph. At 71.9 miles/16 gids reached my private road turn-off; continued at 25mph on CC. After a mile or so started varying the speed up to 35mph to reach powerlimits (lost power circles). This happened at 74.1miles/10 gids. Shifted to ECO (for the first time) and resumed 25mph. Reached home at 75.3miles/7 gids. With ECO mode still engaged, turned on heater; after 2 minutes turtle popped-up. Power-off.
Until the point of cancelling CruiseControl (2.5 miles past LBW) EE=4.0miles/kWh, Dist=64.8 Gids=29 AvgSpeed=43.6.
(Below spreadsheet is at GoogleDocs here.)
And here are two items from Carwings. I don't have the latest updates, so I believe the data is inaccurate, but I am providing it FWIW. Notice the discrepancies in EE (EnergyEconomy, miles/kWh) between CW and the dash. Also notice the missing miles due to Nav Reboot (I was watching the Sensor data) at 52.5 miles. The GoogleDocs version is here.
Edit 16Nov2012 10:14: The kWh data comes from a CT-500 tied into a ChargePoint Network account and is believed to be trustworthy. Charging typically at 242V (239-244), topping out somewhere between 3.68-3.70kW. The OAT data is from the LEAF and relatively unreliable in cases where the car has been at rest for an extended period of time -- see time stamps recorded and notes in the Comment field.
Edit 17Nov2012 08:10 GID meter is being returned today (Saturday). Final data points above. I will add a few edits to clarify or pontificate ;-)
Edit: 19Nov2012 10:48: Added Carwings Data.