Priority Update: 22-PU-1009-MIL-DTE Calculation

[astolleis]

If it makes you feel any better, you're better off without this update. The DTE shown before this update was pretty reliable. Now it isn't.

This is my DTE after charging last night.

This is my DTE after driving my 50 mile commute.

I'm using the same percentage of battery, but the DTE is an unachievable number. I would attach my EV drive history, but that never reset last night. Another software issue Ford has yet to address. But my mi/kWh was around 1.7 driving home last night.

I drive this same commute every day. When my DTE was showing 195-ish at 90% before this update it was correct. Now we are being misled about our range, probably to appease people that see a small number and think there is something wrong. Now people are going to complain when they can't go as far as the truck says.

I would rather have an uncomfortable truth than be misled.

I always appreciate your perspective and sadly I now will have to keep on my DTE's new version. I was uncomfortable before now seems my anxiety will be greater now.

My truck finally updated successfully after about 1 hour of driving around town, then home. At home. I plugged into FCSP, turned off PAAK and put phone in house. Used a fob to start the truck and manually start the update. I stopped the truck and locked the doors. The countdown started to update. At 10 minutes, i still hadn't got the email you failed. I walked out and looked in with no key so the "welcome" did not occur. The Software update screen was up and the truck was making some weird noises. I did see the truck reboot and everything went black. Phone now says updated to the new version.

I got an email from ford about a new layout of screens on Sync4/4A. Is that is what is coming in 4.1.1?

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[Pioneer74]

I always appreciate your perspective and sadly I now will have to keep on my DTE's new version. I was uncomfortable before now seems my anxiety will be greater now.

Don't get anxious. Just be aware that you're being misled and plan accordingly by watching battery percentage and your trip efficiency.

I got an email from ford about a new layout of screens on Sync4/4A. Is that is what is coming in 4.1.1?

No. That's something different coming in the future.

 

[Pioneer74]

Ok. I'm hoping I can control my disappointment with this update to not negatively comment on it after this post, but here is where i ended up at the end of the day.

100 mile commute. I can't tell you the mi/kwh because of the glitch where the trip didn't reset. Anywho, this is where I started.

And this is where I ended 100 miles later.

This update is going to get somebody that drives in cold weather stranded somewhere with a dead battery.

 

[bmwhitetx]

And this is where I ended 100 miles later.

Doing the rough math you started at 90% (x 131 kWh battery) = 117.9 kWh and ended at 43% or 56.3 kWh. So you used 61.6 kWh over 100 miles which is 1.62 mi/kWh. If you keep up that rate the remaining 43%/56.3 kWh will go 91. 4 miles which is real close to the 93 it is predicting.

I think it should be more accurate for you going forward. The update wiped out your EV driving history and that history should be building back up and is real close to what it's prediciting. Be curious when you charge to 90% if it will still say 285. If so, then definitely a fail!

 

[GDN]

I figure the next 10 days should help us all see what will happen. Truly on average I drive just a few miles a day, then some couple hundred miles once every few months, but this next week the "cold" weather is creeping into TX and we're going to drop below freezing, plus I'll have a 400 mile trip to make.

I'm hoping that it just reset our driving history once and it will start to calculate better as we put miles on the trucks and update with reality again.

 

[Pioneer74]

I'm hoping that it just reset our driving history once and it will start to calculate better as we put miles on the trucks and update with reality again.

I was hoping that too. But after 2 days and 200 miles I haven't seen any improvement in its accuracy. If it works anything like the gas trucks, it should take the last 50 miles into consideration to get its numbers.

 

[Pioneer74]

Doing the rough math you started at 90% (x 131 kWh battery) = 117.9 kWh and ended at 43% or 56.3 kWh. So you used 61.6 kWh over 100 miles which is 1.62 mi/kWh. If you keep up that rate the remaining 43%/56.3 kWh will go 91. 4 miles which is real close to the 93 it is predicting.

I think it should be more accurate for you going forward. The update wiped out your EV driving history and that history should be building back up and is real close to what it's prediciting. Be curious when you charge to 90% if it will still say 285. If so, then definitely a fail!

Ok campers. Rise and shine. It's Groundhog Day.

One more post and I'll be spitting facts.

According to my Vue2, my FCSP used 71.018 kW to charge my truck last night. That also includes the time it was plugged in and remote started.

That correlates with what the FCSP says.

And here is my DTE after charging. Funny thing, after driving down my road and braking at the stop sign, it regenned to 285.miles.

And this is after my 50 mile drive.

Everybody watch your battery percentage. The DTE is unreliable.

 

[TaxmanHog]

I join the YES list, early this morning [Sunday] the automatic update finally processed!!!

This happened after my Saturday efforts of disconnecting the LV battery, making sure both +/- posts were clean with a wire brushing, let it set for 5+ minutes unconnected, then put everything back where it belonged, tightened all connections, reset the LVB BMS.

I tried an immediate update which failed. Drove the truck only a short distance to and from church with Marie, then we headed home, plugged in and charged to 80% for the night.

This morning I got the good news and like everyone else she was charging toward 100%

What I got:

After letting the charging continue for about 30 minutes, it did not seem to want to hit 100% so I hit "Resume Schedule" to suspend the charging effort, before doing this I captured a snapshot of the Emporia energy monitor, it was trickling at a slow rate of charge approaching 99% --> 100%

The period of charging from 80% to 100% from 05:21 am to when I stopped it at 08:39 am

The last few minutes of the charging curve, pace was only 2683 watts

GOM is highly optimistic, I'll take that with a grain of salt, we're never traveling those distances this time of year so I'm not worried about being stranded, as an extra measure of sanity I reset my drivers history again, just to be sure the log is clear.

This was the predicted range from last night after the truck reached 80% prior to the updates

Funny thing about the Ford Pass charge session entry, the inferred 28 KWH of energy stored from 80% to 100%, comes to a 140 KWH battery pack [28 / 0.2 = 140], IIRC we've come to the understanding that is the capacity of the pack including the buffers.

Also the predicted extra 82 miles / 28kWh = 2.93 MPK which is over the top even with EPA mixed circuit driving in either spring or fall when HVAC has minimal impact.

The Connected Charge Station log of the FCSP shows 33.997 kWh being sent to the truck.

The Emporia Vue2 shows 33.5 kWh, using these values we can assume it was indeed 34 kwh and the battery stored 28 kwh of that or 82.4% with charging losses around 17.6%, I think these values are off as well, previous charging sessions have yielded charginging losses in the range of 11%

Looking forward to the driver history log accumulating my real world experiences and adapting these numbers to a true winter experience.

 

[Pioneer74]

Sorry. I can't help but post this.

Same 50 mile commute as the past week.

 

[TaxmanHog]

My GOM is quickly relearning my poor operating characteristics, (several remote starts to warm-up) I burned the battery down from 100% to 81% [24.89 KW] in 34 miles, yielding about 1.37 MPK

Though the drivers calm screen does not agree with the FP
At 81% I can go 216 miles [2.04 MPK], my actual winter MPK is around 1.8 MPK so far.

At 81% I can go 239 miles [2.25 MPK], not really!!

Another interesting thing I noticed this morning while remote start warming the cabin, when the truck battery is at 100% SOC, the FCSP will not supply substantial energy to the truck, it was only pushing around 23 watts. The truck was supplying all the energy to warm the cabin, I guess this is a protective measure to prevent overcharging the HVB while shore power would normally be much higher during remote start and pre conditioning.

 

[TaxmanHog]

After today's travels, I got the truck below my planned charging parameters of 80% to be loaded early morning just prior to the following mornings travels. This is what I expected would occur

When I returned home after my evening coffee run, I plugged into the FCSP, the truck ignored the charging rules which were a carry over from prior to the PU update Sunday morning.

Several of you have previously mentioned this happening, so I kind of anticipated it happening here as well, sure enough it did. So deleted all prior charging schemes, plugged the truck in and set up a new HOME rule, used the same conditions, saved it, shut down the truck, went to accessory mode and then off again to see the confirmation of what rule would be followed.

Plugged the truck in again, and she started charging immediately!!!!!! Wash, Rinse, Repeated the reset process a couple times using slightly different values, each time the truck kicked off an immediate charging session, I was expecting it to start briefly then pause after a few seconds, which is what it has done in the past.

In this graphic you see me making four attempts to properly configure the scheme, after the fourth try at 7:55 PM I said the heck with it and let her rip.

Returned to the house, later checking the app to see that the truck finally complied with my request, pausing the charging session at 8:04 pm.

Looking at Ford Pass, it still showed odd time frames for what was happening, none of which made sense. So , I made additional revisions to the rules, expanding the charging window enough to convince the system that it had sufficient time to replenish the battery before starting a warming pre-conditioning session before next departure at 8:10am

While making this fifth round of adjustments it resumed charging again, then paused according to the rules finally set.

New rule the truck ~thinks~ will be sufficient to reach target SOC and accommodate a timely departure with scheduled preconditioning.

Will watch what happens in the morning and report back..... I'm pretty sure this issue is linked to the conservative predicted time to replenish the battery, the calculations imply the 32 amp charger is being used instead of a 80 amp (75 observed amps) FCSP. There should be variable adaptation to the EVSE capacity, which is what the initial 60 second sampling should be doing when first plugged in

 

[Farmford42]

@Ford Motor Company i was trying to get the update to run after nearly a week. This morning I got a very strange issue where it kept refusing to cancel the update. I finally got it to cancel the update and then it went ahead and tried to update anyway.

 

[TaxmanHog]

Will watch what happens in the morning and report back..... I'm pretty sure this issue is linked to the conservative predicted time to replenish the battery, the calculations imply the 32 amp charger is being used instead of a 80 amp (75 observed amps) FCSP. There should be variable adaptation to the EVSE capacity, which is what the initial 60 second sampling should be doing when first plugged in

Charging kicked off as planned at 5am, and only took 65 minutes to load 17 kWh to the battery from 68% to 80%, actual energy through the EVSE was 18.72 kWh, 9.2% charging losses.

It then paused at 6:05am, and resumed providing power at 7:30 am to begin battery preconditioning, peaking at 12 kWh for a couple minutes then ramping down just under 8 kWh, and the moderating the cabin at just under 6 kWh until 8 am scheduled departure.

I intentionally set the time 15 minutes earlier than actual leave time at 8:15 to test a concept we're discussing in another thread about how much idle time is needed to get the steering wheel to re-engage for the pending drive.

It appears 15 minutes idle is not enough, potentially 20, 25 or 30 will be need to reset conditions to activate the steering wheel heater on startup from prior preconditioning status. As you see in these charts the truck actually never shutdown and continued to "idle" from 8:00 to 8:15 then shut down when I unplugged the EVSE connection.

 

[Farmford42]

@Ford Motor Company let us know exactly what the error is. That would be really helpful.

 

[LightningShow]

So, it appears the entire point of this update was to make the truck show around 320 miles at 100% so they would stop getting calls from angry customers claiming their truck is “broken”.

Makes no difference to me, i completely ignore the GoM anyway.

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