L2 charging speed recently dropped 33%

[kennethjk]

Off subject a bit but while charging I was talking to an Audi EV owner who loves the car but hates it. They can’t fix anything. Car has been in the shop numerous times and they cant seem to fix things.

once lease is up he is getting rid of the car.

he ended up charging to 100% (it charges real fast to 100%) to make it home to Ct. as he didn’t want hassle of finding chargers not working on way home . He also seemed a bit clueless that there were chargers available on 95 going home.

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[mkhuffman]

Off subject a bit but while charging I was talking to an Audi EV owner who loves the car but hates it. They can’t fix anything. Car has been in the shop numerous times and they cant seem to fix things.

once lease is up he is getting rid of the car.

he ended up charging to 100% (it charges real fast to 100%) to make it home to Ct. as he didn’t want hassle of finding chargers not working on way home . He also seemed a bit clueless that there were chargers available on 95 going home.

Seems like he has figured out the truth: public charging sucks. And all BEV owners are early adopters, like it or not. Normal people won't like it. I don't like it but Iove my car and I am not going back to ICE.

 

[crownmountain]

I had that happen and got it replaced under warranty. The new one is different inside. For example, when I connect it there is a very loud click from a relay. Since I had used the original one to charge the car since March of 2021 I wonder if the the duty cycle was too much. In any case, I purchased an Emporia for the garage and placed the Ford charger in the car for trips.

 

[Bikespace]

This thread has gotten long. Perhaps someone already linked this, but this related thread shows a possible resolution to the original issue.

https://www.macheforum.com/site/threads/my-charging-waveform-has-changed-what’s-up-with-this.28096/

 

[Mach-Lee]

This thread has gotten long. Perhaps someone already linked this, but this related thread shows a possible resolution to the original issue.

https://www.macheforum.com/site/threads/my-charging-waveform-has-changed-what’s-up-with-this.28096/

Yes, replacing the charge port is likely going to be the fix for the derate issue.

 

[Bikespace]

Yes, replacing the charge port is likely going to be the fix for the derate issue.

Is there a related TSB or SSM yet?

Unless your EVSE makes pretty plots, or you record the data yourself, most won't even notice an issue.

 

[Gimme_my_MME]

Yes, replacing the charge port is likely going to be the fix for the derate issue.

Not necessarily true for THIS de-rate issue

 

[Shayne]

Not necessarily true for THIS de-rate issue

Keep us guessing thanks for the support.

Do you know if we should drop our chargers down to 32 amp for now? Or is the pulsing some are seeing at 40 amps OK on the hardware? My dumb charger uses dip switches and have not wanted to mess with it yet. Not sure if this bouncing around I see and shown in others graphs is hurting anything? Me I just know it takes hours longer to charge but if pulsing is not advisable I will open the charger and flip switches. Any info appreciated.

 

[kennethjk]

I brought my car to dealership for this and was told after they looked at the car, Ford is aware of situation and working on it.

Dealership is usually pretty good and do updates for free, just an FYI,

my personal belief is that it is software related. Too many situations all of a sudden. Or maybe we are just noticing it.

 

[Shayne]

I brought my car to dealership for this and was told after they looked at the car, Ford is aware of situation and working on it.

Dealership is usually pretty good and do updates for free, just an FYI,

my personal belief is that it is software related. Too many situations all of a sudden. Or maybe we are just noticing it.

No I do not think so takes hours longer to charge now and is noticeable. Always woke up and it was done charging but that is no longer the case. Guess not much help or transparency. Hoping the ups and downs are not stressing anything else ?‍.

 

[roamtheworld]

No I do not think so takes hours longer to charge now and is noticeable. Always woke up and it was done charging but that is no longer the case. Guess not much help or transparency. Hoping the ups and downs are not stressing anything else ?‍.

I agree with the above. I charge overnight 3-4 times a week and it used to be finished no later than 3-4AM if I plugged in around 10 PM. I don’t let the car get much lower than 50% because we sometimes have longer trips needed during the week. Now it is finishing around 6-7AM and even once last week didn’t get to my 90% before it was needed at 7:30. This has been consistent for 2 years and is now changed. We use the Ford provided EVSE and I never bother to keep notes on such things. Something has changed with charging on L2 with recent updates.

 

[mkhuffman]

I agree with the above. I charge overnight 3-4 times a week and it used to be finished no later than 3-4AM if I plugged in around 10 PM. I don’t let the car get much lower than 50% because we sometimes have longer trips needed during the week. Now it is finishing around 6-7AM and even once last week didn’t get to my 90% before it was needed at 7:30. This has been consistent for 2 years and is now changed. We use the Ford provided EVSE and I never bother to keep notes on such things. Something has changed with charging on L2 with recent updates.

Have you checked your Ford EVSE to confirm that it is working properly? It could be your problem is your EVSE, and not the issue others are reporting here. My Ford EVSE overheats rather easily, causing the same problem you are describing.

 

[Mach-Lee]

Android users, it looks like Torque has the correct AC port temp parameter, so you can take a look at that along with amps:

You need to charge without interruption for at least an hour to get steady-state temperatures.

In most cases, the AC port temp should be about +73ºF or +41ºC above the ambient temperature for a 48A charge rate. For example, if the garage is 100ºF, port temp would be expected to be around 173ºF. Much hotter than that would indicate a bad connection.

Preliminary data shows the derate happens when the charge port temp exceeds 80ºC or 176ºF. This means a even good connection may derate when the garage temps are hotter than about 100ºF with the current programming.

 

[azerik]

Yes, replacing the charge port is likely going to be the fix for the derate issue.

Except i've yet to throw a code no matter how hot I get the handle/port so far.

That's the door control module update, seems unlikely that would affect charging? Unless it's some sort of reset effect that rebooted the charger module?

Actually I think I might go pull the 12v battery again. I'd got the door module update a second time a week or two ago, and 4.3.6.
BTW when i pulled the 12v I could still open the door with no issues. I tried for nearly 20 minutes opening the door a couple times. The screens never came on but the door kept opening with no problem. Wonder just how much capacitor is in this car lol.

Errors | Description

Code: U0293 - Lost Communication With Hybrid/EV Powertrain Control Module 'A*

Status:

• Previously Set DTC - Not Present at Time of Request
• Malfunction Indicator Lamp is Off for this DTC

Module: DC to DC Converter Control Module

Freeze Frame #1:

• EVENT_TIME: 82217736 s (Sat Jul 22 14:05:48 2023) - Event time
• TOTAL_ DISTANCE: 30543 miles - Total Distance
• MODULE_VOLTAGE: 13.8 V - Control Module Voltage
• INCAR_ TEMPERATURE: 32 °F - In car temperature
• ECU_STATUS: ON - ECU Status
• IGN_VOLTS_SW: 13.60 V - Switched Ignition Voltage
• HEV_HI_VOL: 366.00 V - Hybrid Electric Vehicle (HEV) High Voltage Bus - Measured
• ConvLoCurre: 65.00 A - DC/DC Converter Low Voltage (LV) current
• EnableStat: Enable - DC To DC Voltage Converter Status
• LoVoltSet: 13.90 V - DC/DC Low Voltage Setpoint
• INT_TEMP: 122 °F - DC/DC Converter Internal Temperature - Measured

--------------------
Errors | Description

Code: B108E - Display

Additional Fault Symptom:

- Over Temperature

Status:

• Previously Set DTC - Not Present at Time of Request
• Malfunction Indicator Lamp is Off for this DTC

Module: Accessory Protocol Interface Module
-------------------

Errors | Description


Code: U1020 - Lost Communication With Generic Function Module 2


Status:

• DTC Present at Time of Request
• Malfunction Indicator Lamp is Off for this DTC
• Test not complete

Module: Gateway Module A


I take that back, I have a few DTC's now. I pulled the 12v cable, I'll leave it off for 20 + min again. Interestingly I havn't DC charged in over a month. It was also unpossible to be 32f in my car o a 116+ degree day at noon ish.

 

[kennethjk]

Android users, it looks like Torque has the correct AC port temp parameter, so you can take a look at that along with amps:

You need to charge without interruption for at least an hour to get steady-state temperatures.

In most cases, the AC port temp should be about +73ºF or +41ºC above the ambient temperature for a 48A charge rate. For example, if the garage is 100ºF, port temp would be expected to be around 173ºF. Much hotter than that would indicate a bad connection.

Preliminary data shows the derate happens when the charge port temp exceeds 80ºC or 176ºF. This means a even good connection may derate when the garage temps are hotter than about 100ºF with the current programming.

My garage never gets above 80 when I charge because it’s always in the evening

Usually it much cooler, it derates every time now

But since I’ve already derated the EVSE hard to know when it is fixed

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