Ford Math

[Zprime29]

So your truck shows 360 miles of range with 100% charge (or 324 with 90%) etc..?

It's actually low balling me, showed 286 miles at 85% this morning.

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[RickLightning]

Which seems to show that the predicted miles added via charging doesn't tie to the GOM, which seems pretty crazy.

 

[skyak]

Which seems to show that the predicted miles added via charging doesn't tie to the GOM, which seems pretty crazy.

I guess in terms of calculations to get right "miles added" would not be at the top of the list. But come on co-op students, you can do better!

 

[GoodSam]

With the DTE update, whenever you L2 charge above 80%, it resets the GOM to a number based of the EPA rating

How was this relationship discovered?

 

[TaxmanHog]

If they want to project the optimistic EPA based value regardless of environmental influences (not a Texas driver) then simply use a static value of 2.442748 MPK times the computed kWh's stored, of course even this value has variabilities.

 

[Maquis]

I got by fine with no DTE in my ICE vehicles and I don’t need the range display in my EVs. I basically ignore both. All I need is the fuel gauge / % charge.
Range prediction has so many variables that it’s biggest product is either confusion, consternation, or questions.

 

[Henry Ford]

This is probably worthy of it's own thread but here goes...

EPA range is dumb. It's based on... something...who cares, it's dumb. Nobody wants to know how much range they get while driving their kids to school and going to Costco. I want to know how far I can go on a highway at highway speeds, but like at real highway speeds not speed limit speeds. And tell me what that range is at the median winter temperature in Ann Arbor, MI (home of the EPA testing routes). If I know that I know pretty close to worse case scenario and I can plan accordingly.

 

[cwstnsko]

How was this relationship discovered?

My truck was delivered with the DTE update already loaded, so it has always behaved this way. I have tested it on my truck and if I set it to charge at home to 80% or higher, it jumps up to a battery temperature adjusted EPA rating, If I charge it to 70%, it retains the driving history based estimate. I’ve watched it as it is charging and just as it passes through 80%, the estimated range jumps up.

 

[Tony Burgh]

This is probably worthy of it's own thread but here goes...

EPA range is dumb. It's based on... something...who cares, it's dumb. Nobody wants to know how much range they get while driving their kids to school and going to Costco. I want to know how far I can go on a highway at highway speeds, but like at real highway speeds not speed limit speeds. And tell me what that range is at the median winter temperature in Ann Arbor, MI (home of the EPA testing routes). If I know that I know pretty close to worse case scenario and I can plan accordingly.

EPA mileage was developed to allow comparison between vehicles.

 

[Henry Ford]

EPA mileage was developed to allow comparison between vehicles.

You could compare highway range between vehicles.

 

[Zprime29]

So your truck shows 360 miles of range with 100% charge (or 324 with 90%) etc..?

Dropped off the truck at the dealer to have the seat repaired and they plugged it in to top me off while waiting on parts.

 

[TaxmanHog]

Dropped off the truck at the dealer to have the seat repaired and they plugged it in to top me off while waiting on parts.

Wow 2.7557 MPK

 

[Gnarwhl]

I really dont understand how their math works. I have driven about 2500 miles with an average ~2.6 mi/kwh. Yet, my range always seems to assume ~2 mi/kwh. For example, if at ~50% range, it will say 100 miles range.

 

[MRButtler]

Wow 2.7557 MPK

2.7 miles per kilogram!? Wow that's 9,500 miles!

 

[TaxmanHog]

2.7 miles per kilogram!? Wow that's 9,500 miles!

MPK an alternate term for miles / kilowatt hour

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