AlanSubie4Life
Efficiency Obsessed Member
Thanks. So nothing has changed there. It’s probably 230Wh/rmi still - if you are not super careful when gathering the data, it tends to bias the result to the low side. And 227 is basically 230 anyway...
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AWD efficiency boost with 2019.24.4?
- Thread starter mike123abc
- Start date
Thanks. So nothing has changed there. It’s probably 230Wh/rmi still - if you are not super careful when gathering the data, it tends to bias the result to the low side. And 227 is basically 230 anyway...
ProphetM
Member
I have an AWD non-P with 18" wheels, and I do not have autopilot - just standard cruise control which I use quite a lot. I just went and checked my Wh/mi and noticed a decrease from my historical average - today's average was 216 and my lifetime has just dropped to 249. This despite the Vegas heat of 100+ that keeps the AC running. The last time I looked at it, it was 253 or 254.
From hypermiling with the old Roadster it is well known that cruise speed control has a large influence. In the case of the Roadster using cruise control as much as possible was more efficient than even an experienced driver could manage. I immediately noted that Model 3 TACC was (in March 2019 in my case) very inefficient. It constantly accelerated and decelerated a little. If that has changed, it could explain the differences noted. I am currently away from my car so I cannot check.
RSL2020
Member
For what it is worth, I am perceiving less throttle tip in from a stand still. It seems the first inch or so of throttle travel has less acceleration than on previous software versions. Could account for efficiency increase I suppose (if its a thing).
Jedi2155
Model 3 has Arrived.
I'm not entirely sure how much loss is in the internal resistance of the battery either which usually is used to determine maximum power capability, rather than energy losses in terms of efficiency. I can't think its a lot though. HVAC losses are the primary impact of reduced driving efficiency though. Temperature also has a large impact on battery capacity, but capacity does not play a part into vehicle efficiency in terms of Wh/mi being discussed here. So I'm not convinced that temperature has a particularly large impact unless weather changed HVAC operating conditions significantly.
Explains a lot! Especially when I used up 20% of my pack parked in a snowstorm up in Big Bear!
I don't have any long drives coming up soon (no more than 40-50 miles) but my running counter is at 340 miles this morning, and still reading 261 Wh/mi which is really good still.
AlanSubie4Life
Efficiency Obsessed Member
Someone else chimed once with data showing the constant was still about 230Wh/rmi, so not much reason to fiddle around measuring it again.
In any case, who knows, maybe there is something to Autopilot efficiency improvements. Though I would expect that to reflect in the fleet data, because people who use AP are probably contributing a lot of miles. Stats says ~0.4% driving efficiency improvement since mid-July. Still only 60% installed but that should be sufficient.
AlanSubie4Life
Efficiency Obsessed Member
Sadly that information is either not provided, or is not obvious. But at least there is no monthly subscription fee.
What did the fleet efficiency trends look like on TeslaFi?
i had service done this thursday and asked them to check software revision....he told me i had 2019.20.4.4
he said this was old and there was an update to 2019.24.4.4
then he said that 24.4.4 was for the Model S
Is that true?
Jedi2155
Model 3 has Arrived.
So I got 28.2 update last night. I decided to reset my counter.
So with 24.4 it ended up
529.3 miles | 137 kWh | 258 Wh/m
7/26/2019 to 8/4/2019
I've reset my counter today, but I also FINALLY got my spoiler installed today as well so that might change the numbers a bit.
@AlanSubie4Life I would think at this point (~1.5 weeks), the fleet values for 24.4 should show some type of efficiency change.
So with 24.4 it ended up
529.3 miles | 137 kWh | 258 Wh/m
7/26/2019 to 8/4/2019
I've reset my counter today, but I also FINALLY got my spoiler installed today as well so that might change the numbers a bit.
@AlanSubie4Life I would think at this point (~1.5 weeks), the fleet values for 24.4 should show some type of efficiency change.
I have not noticed a change in energy consumption with recent updates. I got 225 Wh/mi yesterday to and from Philadelphia. That seems in line with what I’ve been getting in the summer.
The Stats app is also not showing a step change associated with recent updates.
The Stats app is also not showing a step change associated with recent updates.
Yep, Stat does not seem to be showing any sudden change; however, that chart seems to be the aggregate chart, and not a Model 3 specific one.
When I look at the two charts above that one, in the app, I see a change in the peak in the histogram. The left chart is from July 26th, right after I had updated, and the right chart is from today, Aug 7th. It's interesting.
AlanSubie4Life
Efficiency Obsessed Member
Good point. I filtered by Model 3, and since the other three charts did change, I assumed the bottom one did as well. But it doesn't appear to, after swapping around a bit. Kind of a bug in Stats.
That being said, there are a lot of Model 3s and probably they represent the majority of the Stat's user base (no idea). And furthermore, your histograms don't show a huge change (but we also don't know the time interval used to generate the histogram).
So hard to say. The overall average has continued to creep up a percent or so, which is actually surprising to me, since there is probably more AC use right now than there was before, but it's hard to say. It's a small change, if any.
I noticed it accelerated and decelerated a little too (annoying), but only when following another car that is keeping you under your set speed. If it's maintaining set speed without anyone in front bringing you below your set point it does not do that. I'm not sure how much the acc/dec is really impacting efficiency though. I'm thrilled with the efficiency I'm getting (230 wh/mi AWD on OEM 19" when not using heat) with TACC/AP almost always on, on the highway only.
Redid the chart with a couple arrows pointing at the peak of the bellcurve histograms.
Obviously, not a big change, as the time period is less than 2 weeks. The Tesla overall efficiency chart, Models S, X and 3, that Big Earl posted shows only a 0.4% improvement, from 96.3% to 96.7% in the same timeframe as the chart below, but the chart below shows the peak of the bellcurves to have shifted from ~95% to ~99%. Sort of implies that maybe a small subset of users are getting better efficiency. Look at my efficiency, it's gone from 120% to 129%. That's not a daily instant reading, but an average over the last 4000+ miles. For less than 2 weeks and about 250 miles of driving to have such an outsize influence on my 4000+ mile average seems highly unusual.
Remember, the only people wondering about an improvement seem to be either AWD or P-AWD drivers. That's not all Model 3 owners. It's just an observation, nothing more.
Obviously, not a big change, as the time period is less than 2 weeks. The Tesla overall efficiency chart, Models S, X and 3, that Big Earl posted shows only a 0.4% improvement, from 96.3% to 96.7% in the same timeframe as the chart below, but the chart below shows the peak of the bellcurves to have shifted from ~95% to ~99%. Sort of implies that maybe a small subset of users are getting better efficiency. Look at my efficiency, it's gone from 120% to 129%. That's not a daily instant reading, but an average over the last 4000+ miles. For less than 2 weeks and about 250 miles of driving to have such an outsize influence on my 4000+ mile average seems highly unusual.
Remember, the only people wondering about an improvement seem to be either AWD or P-AWD drivers. That's not all Model 3 owners. It's just an observation, nothing more.
groovidad
Living the Dream!
I can only speak to my location driving. There are numerous values that fluctuate daily. School is out/in, less/more traffic, more ability to drive faster/slower . Headwind, tailwind, humidity, temperature equating to lower/higher A/C or heat(I never use heat), construction zones, accidents-stalls impeding travel, weight in vehicle, spirited vs conservative, stop and go traffic, using/not using radio, use of sentry, updates, added aftermarket trim/mud guards, recent changes in tires/wheels, under inflated/over inflated tires, battery health, SoC, rain, road conditions, use of UI (games/stuff), drafting, widows open/closed, EAP/FSD use, regenerative braking, overheat protection. If you are going to attempt a “study” of this issue, there are variables that must be considered. Personally, I’ve noticed no change in my consumption that I would consider “significant” since taking delivery. Do I think about it? No, I just enjoy the ride!
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