TonyWilliams
Well-known member
Edit: The trip was completed in 70 - 80 degree weather, with clear skies and no wind.
drees said:Can you give all the details as I have a trip I'd like to try that's similar, except to the other side of Julian to Shelter Valley. Did you fully charge at Nissan Poway? How much charge did you have loft when you got to Julian after your trip?
drees said:Yes - I figure if I can get to Julian with a bar remaining I ought to be able to make it the rest of the way. .....
Edit: Looking at your data in the previous post more closely, I'm thinking it may not be possible without going very slow or charging. It will certainly be cutting it very close - closer than comfort should anything unexpected arise. A 10 min quick charge in Ramona would be ideal. Too bad the Wild Animal Park doesn't have any L2 stations - could stop there for a couple hours on the way.
The park does have parking for RVs, with power, including 240v circuits. If you have a modded EVSE...drees said:... Too bad the Wild Animal Park doesn't have any L2 stations - could stop there for a couple hours on the way.
Thanks - will have to check that out, didn't realize there was 240V there as well as 120V. Still need to send my EVSE out to get upgraded.davewill said:The park does have parking for RVs, with power, including 240v circuits. If you have a modded EVSE...drees said:... Too bad the Wild Animal Park doesn't have any L2 stations - could stop there for a couple hours on the way.
Report and pics at the link: http://www.mynissanleaf.com/viewtopic.php?f=15&t=3318" onclick="window.open(this.href);return false;
Ideally I'd charge back up to 100% there - it's 21 miles slightly uphill, so would probably need 2 full hours to get back up to 100%. At least an hour would be required. Long wait... Wild Animal Park would be a much nicer way to spend a couple hours (have a Zoo pass) if I can get my EVSE modded and confirm the 240V outlets work.TonyWilliams said:Drive the Poway Nissan route, and charge there. There's shopping / lunch spots within a 15 minute walk west on Poway Road.
TonyWilliams said:Made my second trip to Julian...
Completed the trip with 85 miles at VLB. So, almost 90 miles of range.
Several recent posts on this thread saying hills limit their range, suggest the same underestimate of energy ascent recovery, as is shown in the range chart. Most of the energy used in climbing, will be recovered, as long as you return to the same altitude you started from.
In fact, I think most all those who regularly drive their LEAFs with large ascents and descents, have found similar ratios of ascent energy recovery that I have, about 80%, rather than the 50% shown in the range chart...
My longest range drive, over 92 miles to just past VLBW, on a hot summer day averaging about 40 mph, was a two way trip on the road profile below, with the first few (left of profile) miles repeated several times at the end, for a total ascent/descent of between 5,000 and 5,500 ft...
edatoakrun said:TonyWilliams said:Made my second trip to Julian...
Completed the trip with 85 miles at VLB. So, almost 90 miles of range.
Now that you have made multiple trips proving the 50% rate of recovery of ascent energy on your range chart is way off, will you please correct it? It looks to me like you get close to the 80% reported by several others.
If I had seen your range chart, and believed it, I would probably not have purchased a LEAF, as I would have been mislead to believe it unsuited to my driving range requirements.
I also expect that if you try the same trip entirely in ECO, you will find that there are negligible improvement in efficiency (if any) from shifting into D and N. The longer drive, re-posted below, with similar (?) ascent/descent (how did you calculate your total?-the profile you posted does not seem to match 6,700 ft) was done entirely in ECO.
TonyWilliams said:edatoakrun said:TonyWilliams said:Made my second trip to Julian...
Completed the trip with 85 miles at VLB. So, almost 90 miles of range.
Now that you have made multiple trips proving the 50% rate of recovery of ascent energy on your range chart is way off, will you please correct it? It looks to me like you get close to the 80% reported by several others.
If I had seen your range chart, and believed it, I would probably not have purchased a LEAF, as I would have been mislead to believe it unsuited to my driving range requirements.
I also expect that if you try the same trip entirely in ECO, you will find that there are negligible improvement in efficiency (if any) from shifting into D and N. The longer drive, re-posted below, with similar (?) ascent/descent (how did you calculate your total?-the profile you posted does not seem to match 6,700 ft) was done entirely in ECO.
You're making a bunch of assumptions. First, this trip was not a data generating trip. Secondly, I did specifically >not< coast down like i did last time, and instead used regen and power (I constantly switch to ECO when there is a need for more regen without brake application... I prefer D mode for power application).
There is no good way to post facto try and accurately compare the two trips for the purpose of determining regen percent (at least to my satisfaction). We already know that it can be 0% with coasting in N or in either Eco or D with a full battery. We also know regen will never be close to 100%.
To figure our the parameters for regen on a range calculation beyond my mostly arbitrary 50%, I'm all ears. If your answer is just 80%, then we simply do not agree., and if my opinion, more wrong than a simple 50%.
Again, we have to establish the parameters to calculate it. We can measure with a Gid meter to get baseline data from test runs (they are definitely accuracy issues with this) but the more difficult part is organizing all the variables into a simple format.
PS: Almost forgot, both trips came up with substantially similar data outside the obvious battery capacity and heater issues associated with colder temps.
Just "little 'ole me"? Tony....you are FUNNY! :lol:TonyWilliams said:Made my second trip to Julian, after a San Diego county snow storm. It was my Dad's 70th birthday, too, so to offset my green, zero carbon emission trip to Julian, we also flew the Piper Mailbu to Santa Catalina Island for lunch.
I used a bit more power on this trip, and had a bit less usable battery capacity with significantly lower ambient temps. Plus, more weight with 3 people vice just little 'ole me last summer, and my parents appreciated the heater!
Completed the trip with 85 miles at VLB. So, almost 90 miles of range.
"We also know regen will never be close to 100%."-BUT RECOVERY OF ASCENT ENERGY CAN BE.
This occurs every time you "coast" downhill, neither using energy, or receiving charge though regen, whether you are in D, N, or ECO.
TonyWilliams said:How about we set up a simple non-GOM or CWP experiment. I have two long descents near my house. Speed, weight, and verticle decent profile seem like likely variables. Anything else? Oh ya, that pesky top of the charge. How do you want to account for that?
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