Mach-E EPA Ratings Revealed in Window Sticker!

[Beholden]

Well played my freng, well played.

You forgot the weight of the dirt and rocks that accumulates under the rear underbody of Tesla’s.

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[efisher]

Within reason. You have to put a fairly large error band in there. If two vehicles have large differences in range then the EPA numbers should be indicative. But if the difference is a few percentage points, like 270 miles vs 250 miles, probably not.

Not criticizing the EPA. I think the EPA does a good job. It's just the legacy tests aren't designed for BEVs in the first place, and not for the type of driving where BEV drivers care about range (freeway kinda constant speed).

In my book 7% is more than a few.

 

[efisher]

Well not so fast, the one thing I am not seeing discussed here is the recommend total charge for regular daily EV use. Most MFG's leave this info off the fancy marketing slides but include it in the user manuals. To extend battery life we are told that we should only charge to 80% on a daily basis. Now we know the MACH-E only has 88% battery usage which leaves around ~10% of non use which generally is reserved at the top and at the bottom end of the battery. So when going with a SR battery you most likely will get 40% less total range of miles with 80%. I say 40% because you will most likely charge to 80% and should not regularly go below 20%. Range is from 20% to 80% and yes you can charge to 100% but that is really is for charge and go, not charge and let it sit at 100%. Food for thought and would be nice if the buffer they included allow for the overhead when at 100% but I somehow doubt it. So far this has been the case for all other EV's.

I would reexamine your assumptions. I do not thing they are valid.

 

[efisher]

This brings up an important point which people are missing so I'm going to respond. The fact is that I did EXACTLY what I should have done if I believed my claim. Going with SR reduces the charging rate from 150 kW to 115 kW. If charging rate is the important factor, you want to avoid SR, not necessarily because of range but because of the charging rate. The real test, which wasn't on the table, would be if SR charged at 300 kW and the ER at 150 kW. Not realistic of course but that would be the test.

Seriously? SR - 115 and ER - 150kW? Could Ford do anything more offensive to the buyers of their "less expensive" (just measly $47K, right?) than this? Is there any other company that did something like that? Did they artificially add that "option" for smaller batteries to "encourage" additional $5K spending? One more opportunity for my Tesla friend to have fun of my Ford "Mustang?!" selection - not only 230 miles but now only 115 kW. Perfect, just perfect...
[/QUOTE]
You get what you pay for. Makes sense to me.

 

[efisher]

I read that they did it this way for brake feel. Also, the iBosch brake controller/master cylinder is probably cheaper than a true drive-by-wire brake controller like the Audi E-tron uses. According to this story, Audi , the Audi was the first EV to incorporate brake-by-wire. I think the Taycan uses it too? But I'm not sure about that. Researching this I found something interesting: if you brake enough to activate ABS, regen is killed. Here's something I haven't tried: switch to low regen and see if pressing the brake pedal increases regen? (It doesn't for sure with standard regen...) The iBosch can blend regen with friction brakes, so maybe it does? I'll try that tomorrow. Speaking of the iBosch, do we know yet what brake controller the Mach-e uses?

The Mach-E is also a break by wire system. They discuss this indirectly in one of the drive mode videos where they discuss how they map regenerative breaking to both the accelerator and brake pedals.

 

[dbsb3233]

Seriously? SR - 115 and ER - 150kW? Could Ford do anything more offensive to the buyers of their "less expensive" (just measly $47K, right?) than this?

It makes sense though. Charging curves exist to protect the battery. They lower the amount of power applied as the battery fills. The more "space" a battery has left, the faster it can fill. The ER battery is bigger, thus more "space" when empty, thus can charge faster early.

The SR battery is smaller, thus it begins its charge curve at the point where the bigger battery has already tapered to 115 kW. (Or likely thereabouts).

 

[SnBGC]

The Mach-E is also a break by wire system. They discuss this indirectly in one of the drive mode videos where they discuss how they map regenerative breaking to both the accelerator and brake pedals.

The Mach E is brake by wire for both the regenerative and friction brake systems? I was not aware the hydraulic friction brake system was controlled by wire...

 

[Gilles]

The Mach E is brake by wire for both the regenerative and friction brake systems? I was not aware the hydraulic friction brake system was controlled by wire...

The hydraulic brakes are not controlled by wire. That would be illegal. The brake pedal position controls the regenerative braking. The early movement of the pedal does not generate enough movement in the hydraulic system to generate braking friction.

 

[SnBGC]

The hydraulic brakes are not controlled by wire. That would be illegal. The brake pedal position controls the regenerative braking. The early movement of the pedal does not generate enough movement in the hydraulic system to generate braking friction.

Okay thanks. That is my understanding as well. I was surprised when someone said the Mach E is brake by wire which I didnt think was true. Regen excluded of course......for obvious reasons.

 

[JamieGeek]

I'm guessing they used the same parts as all the other plugins.

Read more about it on the Focus Electric here:

 

[Gilles]

Seriously? SR - 115 and ER - 150kW? Could Ford do anything more offensive to the buyers of their "less expensive" (just measly $47K, right?) than this? Is there any other company that did something like that? Did they artificially add that "option" for smaller batteries to "encourage" additional $5K spending? One more opportunity for my Tesla friend to have fun of my Ford "Mustang?!" selection - not only 230 miles but now only 115 kW. Perfect, just perfect...

You get what you pay for. Makes sense to me.
[/QUOTE]
Nothing offensive here. The standard range battery has 288 cells. The extended range has 376 cells. Each cell can take 399.5 watts. This adds up to 115 KW for the standard range and 150 KW for the extended range.

 

[jlauro]

You get what you pay for. Makes sense to me.

Nothing offensive here. The standard range battery has 288 cells. The extended range has 376 cells. Each cell can take 399.5 watts. This adds up to 115 KW for the standard range and 150 KW for the extended range.
[/QUOTE]

Just like larger battery packs can accelerate faster, it makes sense they can charge faster. This should make no difference at home where the circuit from the power company is the limiting factor and only at a DC fast charger.

 

[Gilles]

Nothing offensive here. The standard range battery has 288 cells. The extended range has 376 cells. Each cell can take 399.5 watts. This adds up to 115 KW for the standard range and 150 KW for the extended range.

Just like larger battery packs can accelerate faster, it makes sense they can charge faster. This should make no difference at home where the circuit from the power company is the limiting factor and only at a DC fast charger.
[/QUOTE]
That is correct, every Mach-e comes with an 11.5 kW AC charger (same as the Tesla Model 3). But to fully use it, you need a 48 Amps. J 1772 station, requiring a 60 amps circuit. The most common installation is a 40 amps circuit with a 32 amps giving 7.2 KW charge power. It is the most common because that is the normal wiring for an electric stove or dryer. The stations tell the car the maximum it can deliver and the car charger is responsible for not exceeding that value.

 

[EV Lab]

My Fiat 500e does blending regen with the brake pedal. When slowing down on a highway exit I'll see 80kW+ in regen, but only when pressing the brake pedal. There is no configuration of regen or 1-pedal possible. At around 4-5 mph there is a noticeable change in negative g's when the regen falls to zero and it feels like the brakes are doing more work. Everything in the 500e is supplied by Bosch...

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