Mileage for Extended Range Mach-E Models Revealed in EPA Emissions Certifications

[timbop]

Here is something I find curious about those data. This if from the ER submission:

Battery energy capacity is 288...
288 what, mega joules? That’s 80kWh, which is close to 20% less than the advertised ER battery.

Yeah, I saw that and wondered what the units were too

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[timbop]

Ampere hours (Ah).

If you read the associated submission document, there's all sorts of engineering details that you all can obsess and fret over while anxiously awaiting your vehicle, like curb weight, gear ratios, pack energy density, and so on.

hmm, but that doesn't make sense either. AFAIR watt-hrs = volts * amp-hours. So 288 ah* 404V= 116.4 kwh. That isn't right, either.

 

[kdryden99]

Yeah, I saw that and wondered what the units were too

AH its indicated in another document from epa with max charge times

 

[macchiaz-o]

hmm, but that doesn't make sense either. AFAIR watt-hrs = volts * amp-hours. So 288 ah* 404V= 116.4 kwh. That isn't right, either.

Batteries should never be kept at their maximum voltage, and I think to charge a rechargable battery, you must supply it with voltage higher than its current output.

But I'm not an electrical engineer, not an automotive engineer.

Most of this discussion seems fruitless to me, except for the occasional moments of levity and calm.

 

[FredT]

If Ford wants to play with the numbers and pretend the range is 270 miles, instead of the 250 miles in the EPA test, what do we expect the real range to be, based on what other EV makes are doing?

That's not a great source for a range comparison. From their article:

"We don't (yet) control the weather, so the worst-performing examples, including a 2018 Model 3 that only managed 65 percent of its range rating, took place with outside temperatures hovering around freezing."

I think most Kona owners would laugh at the suggestion that it only gets 160 miles.

 

[Maric]

At this point I really want to read the supposedly glowing JD Power article on the MachE to see if range was something they tested.

 

[ajmartineau]

Sounds like their "road load specification" is not set in stone. That would alter the results of this test.

 

[macchiaz-o]

Sounds like their "road load specification" is not set in stone. That would alter the results of this test.

The sections I find most illuminating are 2.2.2 and 2.3. Really alters my thinking about this.

 

[kdryden99]

The sections I find most illuminating are 2.2.2 and 2.3. Really alters my thinking about this.

you should read page 2 of section 17. The EPA numbers are very close to 270

 

[ClaudeMach-E]

So, here’s how I look at it:
Tesla is ruled out in my mind because of quality and lack of an IC (and no “hard” controls)
Ford had been saying “Projected 270 miles” range for the model I want (ER AWD)
They came in at 250 (apparently). This is ~ 93% of their target, which is within 10%. As a person with an engineering background, I’ll take something within 10%. Not going to be the end of my world. May have a significant impact on others.

And this 10% difference can easily be close with an OTA update.

 

[trutolife27]

.

 

[ClaudeMach-E]

I'll go with what came out of Norway...

https://insideevs.com/news/442601/ford-mach-e-484-km-norway/

At least it's a real experience WLTP/EPA the road talks.

 

[dbsb3233]

At least it's a real experience WLTP/EPA the road talks.

Albeit a pretty low-speed route (47 MPH avg according to Google). But it's one good anectodal example at least. One we've been hanging our hopes on for 2 months now.

 

[timbop]

.

Nature and fora abhor a vacuum.

 

[Leonard Rae]

Its because you guys wouldnt be able to play football anymore ?

But at least we Canadian's still golf in Yards! I never ever converted to metric- it was political!

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