Mach E web series Part 4 - Performance and Charging

[jhalkias]

I guess it depends on their definition of "briefly". Here's what Heiser said back in December...

Mach-E will charge at 150 kw—briefly. Early materials about the Ford Mustang Mach-E haven’t been entirely clear if that vehicle will fast-charge at 150 kw, or whether it just needs 150-kw fast-charging hardware to charge at its peak rate somewhat less than that. Heiser verified that it indeed does charge at 150 kw, but only for a small window of time and state of charge. “At our price point it’s a position of strength,” Heiser said.

https://www.greencarreports.com/new...-how-project-went-from-milquetoast-to-mustang

OK guys. UNCLE. I give up on my hope that it will charge like the Etron at the DCFC. Party poopers.

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[jhalkias]

And......
Wait until you guys see how the MME helps you predict your range. I have some preliminary info from one of the software engineers and it's cool stuff. It will actually tell you if you are going to make it to your next charge point based on your current speed. If you have miles to spare....it will show that to you as well. If you don't or are too close for comfort then you can slow down and/or turn off your climate control and see your range increase. It is that dynamic. It won't take very long until you get to learn your car and feel comfortable going out on the open road.

They alluded to that last night, and I was hoping for more detail. So better than the regular GOM on other BEV cars. That's great to hear.

 

[SnBGC]

They alluded to that last night, and I was hoping for more detail. So better than the regular GOM on other BEV cars. That's great to hear.

Yeah. It's exciting stuff.
My FFE is pretty good at that already but I have to set my navigation and tell it I plan to charge somewhere. Which is a problem sometimes because not all the DCFC stations have a physical address....Walmart or truck stops are okay. Shopping malls or rest stops not so much....

From what I can tell.....the MME does this stuff automatically without much set up or input from the driver. I am anxious to get more details myself. It's like pulling teeth though.......

 

[dbsb3233]

OK guys. UNCLE. I give up on my hope that it will charge like the Etron at the DCFC. Party poopers.

Well there's always hope.

But I wouldn't bet the house on it. Maybe marginal improvement but probably not wholesale.

 

[ChasingCoral]

They alluded to that last night, and I was hoping for more detail. So better than the regular GOM on other BEV cars. That's great to hear.

Yes, last night Darren discussed integration of the navigation into the range calculations including road speeds, actual distances, and elevation changes (he really stumbled over the word topography LOL).

 

[kdryden99]

change from (C)ommunist to (F)reedom units for your temperature and it will be a lot warmer.

?

Lol like i stated b4 -40C is -40F. But seriously if you wanted to test your car in the cold you could have gone to Alaska or better yet you were already in Europe. You could have gone to Norway, Switzerland Sweden. Instead you test in Michigan. Its like saying "hey is the water good in Seattle? well let me open my water here in Michigan to check" mind boggling.

About charging speed. It was mention that after 80% the wattage will taper off so your charging will slow down. According to Electrek

Electrek’s Take

It’s good news that there are improvements, but it’s still hard to understand the actual capacity.


“61 miles of range in approximately 10 minutes” sounds good, but do I need to be at 1% state of charge to get those 61 miles in just 10 minutes? Because most people don’t start charging on the road at 1%.


The best metric they shared is “a 10 percent to 80 percent charge in approximately 45 minutes” while charging on a DC fast charging station. With the 98 KWh extended-range battery pack, it would mean an average charge rate of ~90 kW throughout the charging session.


That’s not bad at all, but we will know more once we are able to see a full charging cycle on the Mustang Mach-E."


And also i believe for the range yo do have to put the destination in the nav system. He kept on mentioning as an example "do you have enough charge to get home?" but he also said that home would be programmed in the nav so I think in order to get the proper range you have to put it in the nav.

 

[Shayne]

So nothing on why we are carrying around 11% of the battery as dead weight? Tesla 100 D has a 4% buffer therefore its warranty is 66% remaining battery after 8 years. Fords is 11% which equates to a warranty of 59% remaining battery after 8 years. Was hoping they would reconsider just dragging around all that dead weight, at a noticeable cost, and gives us the range/battery we paid for. 94 KWh at least (7% more range). Anyone here think when you bought a 100 KWh pack from Ford that 270 would end up the range? Appears they have enough leeway to decrease the warranty. Still looking forward to the MME but reduce that enormous buffer and let the mustang free. Rant over.

 

[timbop]

So nothing on why we are carrying around 11% of the battery as dead weight? Tesla 100 D has a 4% buffer therefore its warranty is 66% remaining battery after 8 years. Fords is 11% which equates to a warranty of 59% remaining battery after 8 years. Was hoping they would reconsider just dragging around all that dead weight, at a noticeable cost, and gives us the range/battery we paid for. 94 KWh at least (7% more range). Anyone here think when you bought a 100 KWh pack from Ford that 270 would end up the range? Appears they have enough leeway to decrease the warranty. Still looking forward to the MME but reduce that enormous buffer and let the mustang free. Rant over.

"let it go, Indiana"

Tesla initially had a bigger buffer too. I'm sure after a while they'll see the whole buffer isn't needed and send an OTA update to get more range, just like tesla did.

 

[Shayne]

"let it go, Indiana"

Tesla initially had a bigger buffer too. I'm sure after a while they'll see the whole buffer isn't needed and send an OTA update to get more range, just like tesla did.

Tonto to the lone ranger: What do mean us white man?

 

[kdryden99]

If you think about it your car tells you, you have no more gas when in reality you have roughly 10kms left maybe more. Most cars do this already we're just used to being told this outright. Also that top buffer might be there for the climate control. Especially for those (like me) where some early mornings it csn get to -36, -30, in the winter maybe the climate controls will use part of that top buffer and not just what it gets plugged in.

A big positive is at least now, as stated by others on this forum, there should be no issue charging everyday up to 100% since these buffers are in place. To reduce having the battery be hot all the time, they still recommend 3-4 times a week depending on your commute

 

[kdryden99]

Your also not supposed to let your gas car get to less than 1/4 tank cause it forces the pump. These are practices you do already or should at least with a gas car so with an electric its the same. We're just complaining about it cause we dont realize it

 

[JamieGeek]

Your also not supposed to let your gas car get to less than 1/4 tank cause it forces the pump. These are practices you do already or should at least with a gas car so with an electric its the same. We're just complaining about it cause we dont realize it

"forces the pump" ? I think you didn't finish there.

Forces the pump to do what?

Most ICE's now have the fuel pump in the tank so you can basically run them dry.

 

[kdryden99]

"forces the pump" ? I think you didn't finish there.

Forces the pump to do what?

Most ICE's now have the fuel pump in the tank so you can basically run them dry.

Yes but you're not supposed to let the pump scrape the bottom of the barrel. Running them dry as you say was and is still not good practice.

 

[kdryden99]

The pump is supposed to be soaked in gas. If your gasoline level is too low it can lead to overheating since its not lubricated. If you run it dry you have a chance of pulling air instead of gas wearing out the pump. If you think of a battery the same way, the pack might have 10% left but each cell might not , maybe some have more some might have less charge, so i could see the reasoing of keeping a 5% or 10% lower buffer to not overheat some of the cells.

 

[kdryden99]

For those saying well why not 5%. Well making 10 cars and testing them and making 50k cars and letting customers test them is very different. They probably want to see how well the batteries hold up to real world everyday use. And if they see no problems they can unlock some via ota after they see there are no issues

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