[lagagnon]

Mea culpa if there is an FAQ on this subject, but I cannot find one.

New Volt, about 3 weeks old now, lovin' it. Over this three last weeks of nice summer, babying it, using regen a lot, low gear in city traffic we are getting and "EV Range" estimate of around 110km, a nice improvement on the published 85km.

I realize 85 km is very much an average range. I also suspect the micro-controllers somehow average past driving to come up with this estimate in the DIC, but I wonder if there is any better explanations from GM on how they arrive at the EV Range estimate? Any links to such information greatly appreciated....

 

[obermd]

I suspect they look at how many KWh are used on the EPA efficiency testing.

 

[scrambler]

I have not seen any precise info on this, but my experience is that it is computing an estimated range, based on your average consumption over the last 3 to 4 days of driving.

So if your diving style / conditions change, it will take 3 to 4 days to be fully reflected in your estimated range after full charge.

 

[jcanoe]

Mea culpa if there is an FAQ on this subject, but I cannot find one.

New Volt, about 3 weeks old now, lovin' it. Over this three last weeks of nice summer, babying it, using regen a lot, low gear in city traffic we are getting and "EV Range" estimate of around 110km, a nice improvement on the published 85km.

I realize 85 km is very much an average range. I also suspect the micro-controllers somehow average past driving to come up with this estimate in the DIC, but I wonder if there is any better explanations from GM on how they arrive at the EV Range estimate? Any links to such information greatly appreciated....

The Volt's computer factors driving technique, terrain, ambient temperature and use of climate control when estimating EV range, and gas range. The Volt keeps a running average of your last few trips when computing range estimates.

Don't get too attached to 110km range as once the temperature starts to fall so will the estimated range.

 

[Upper5Percent]

"Drive it like you stole it" will drop your range like a stone...and it will take several days of "mild-manner Clark Kent" driving to get your numbers back up...

 

[dannycamps]

Range is always better in warmer weather. Nothing sucks the range away like heating the cabin. I've seen as high as 63 miles in the summer and as low as 43 miles in the winter.

 

[obermd]

OP is asking where the 53 mile EV range estimate printed on the Mulroney sticker came from.

 

[freshcut]

I believe the estimated EV range is based on the typical driver, using moderate acceleration, moderate climate control usage, etc. Pretty sure they base it on using approximately 275 watts/mile and the available power from a fully charged battery (~14kW gen2). Of course adjusting your driving style makes a vast difference in either direction as to how far it actually goes. Naturally using climate control draws power directly from the battery and will impact significantly in extreme hot or cold weather with cold making the largest impact not only due to heating requirements of both the battery and passenger compartment (if needed), but also the battery tends to discharge more quickly if it's cold. Hope that kinda clears up some of the question.

 

[obermd]

Found this: https://www.torquenews.com/2250/how-epa-determines-electric-vehicle-s-range-not-simple-it-sounds

 

[AZ EV Driver]

Based on all answers to this point - no one knows how they calculate projected range. But I feel they are doing better at projecting the future than most other manufacturers.

Just enjoy the Volt and don't worry too much about the numbers.

VIN # B0985

 

[Mister Dave]

Any links to such information greatly appreciated....

http://gm-volt.com/forum/showthread.php?18609-Battery-Mile-Estimate-in-30-s-not-40-s-50-s.-Problem

 

[BAZINGA]

Based on all answers to this point - no one knows how they calculate projected range. But I feel they are doing better at projecting the future than most other manufacturers.

Just enjoy the Volt and don't worry too much about the numbers.

VIN # B0985

I agree, the Volt's displayed range aka Guess-O-Meter is pretty accurate. But it can quickly change based on any change in driving routine. And as any EV owner will attest, cold weather and heating the cabin will suck the life err range out of your battery.

 

[hellsop]

I believe the estimated EV range is based on the typical driver, using moderate acceleration, moderate climate control usage, etc.

And averaged over a year of weather variation.