L2 charging speed recently dropped 33%

[azerik]

It was designed to run at 48amps. So When it's actually charging at 40 or 48 it's still less stress on it then 5 hours at 48amps which they all could do previously. This is not hardware driven. It's some module somewhere re-using a variable it shouldn't and borking up the charging instructions. 3 years the car has been out, charing at 48 amps all the time. Someone makes an update somewhere it' collides with something in the onboard charger instructions and we get this.

Don't think in any way Ford is doing this because all of a sudden they figured out it'll save the battery health or charger. I think (and I have been known to think WAY outside the box from time to time) If anything it could have been on purpose just to be nice to the grid (however ridiculous that sounds think about it for a few minutes.) or get a kick back from some vendor. But most likely someone just screwed up and the 2 people that QA these releases were on summer vacation and a PM cried enough to get the build guy to push it. Someone's getting written up no matter how this plays out.

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[Mach-Lee]

I'm lost why people having it drop from 48 or 40 amps to 32, set the EVSE to 32 and think it's solved, it's always dropping to 32, you're just removing the fact it ever was higher. Theres something software related going on with this. I'm thinking some of us might need to take a look at the SOBDM (Or whatever the on board charger module is) and see what version we're on and check against those not having the issue.
@Mach-Lee can you see that via VIN lookup?

Yes, but I think it's more complicated than that. I think there might be some kind of mismatch between software versions on the various powertrain modules that causes it. We have like 5 modules that all have to talk to each other to coordinate cooling functions, so something might be getting lost in the comms between them. The cooling requests by the charger seem to be either not getting sent or ignored. The different years and powertrain configs all have different software versions (e.g. AWD vs RWD vs GT standard range, extended, etc).

I'm pretty sure I have the same SOBDM software as the rest of people with the issue, but I don't have overheating or derate. I get "plugged in not charging" sometimes, but when its charging, mine doesn't derate.

 

[kdryden99]

Yes, but I think it's more complicated than that. I think there might be some kind of mismatch between software versions on the various powertrain modules that causes it. We have like 5 modules that all have to talk to each other to coordinate cooling functions, so something might be getting lost in the comms between them. The cooling requests by the charger seem to be either not getting sent or ignored. The different years and powertrain configs all have different software versions (e.g. AWD vs RWD vs GT standard range, extended, etc).

I'm pretty sure I have the same SOBDM software as the rest of people with the issue, but I don't have overheating. I get "plugged in not charging" sometimes, but when its charging, mine doesn't derate.

We are assuming overheating just because of the different comments and because of the thermal sensor issue. In no way is anybody claiming anything is overheating.

 

[azerik]

Or a false overheating, causing the car to request lower. We' don't know where it's coming from or if it's even that. I was thinking it's timed because mine throttled down at 20 or 25 minute mark for a month, regardless of the temps I was seeing from my EVSE. But I see others are throttled in 10 minutes, could be a sensor reading, but I get the same time at 40amp in 110 degrees that I do at 80. I've replaced my EVSE with another of the same unit and get the same 'time to taper'. (Want to coin that phrase lol, ToT) I ruled out the plug temp by the fact the handle temp and wire temp would continue to climb while the down cycle was running.

 

[Maquis]

Maybe the company’s like JB and others have to update their software to be compatible with Ford after a Ford update

assume that is another possibility

I don’t think that’s the case. All the EVSE is communicating to the car is what it can provide max. That uses the standard J1772 protocol so that hasn’t changed. The car then sets the charge rate up to the maximum it received from the EVSE.

I also don’t think it’s truly heat-related. At least not in my case. I’ve plugged in when the car has been sitting in my <80F garage for 10 hours, and it immediately starts charging at the reduced rate. It has to be either a false temp reading (bad sensor) or software bug. I’m leaning towards the latter.

 

[Mach-Lee]

I don’t think that’s the case. All the EVSE is communicating to the car is what it can provide max. That uses the standard J1772 protocol so that hasn’t changed. The car then sets the charge rate up to the maximum it received from the EVSE.

I also don’t think it’s truly heat-related. At least not in my case. I’ve plugged in when the car has been sitting in my <80F garage for 10 hours, and it immediately starts charging at the reduced rate. It has to be either a false temp reading (bad sensor) or software bug. I’m leaning towards the latter.

That could be true. I just don't like how people are reporting it's charging at 40A in hot weather without running the cooling pump or fans. It's going to get hot and bare minimum the pump needs to run.

 

[kdryden99]

That could be true. I just don't like how people are reporting it's charging at 40A in hot weather without running the cooling pump or fans. It's going to get hot and bare minimum the pump needs to run.

For all we know it is running we might just not hear it. There are multiple pumps and they might not be running at full capacity so they make less noise but we have not seen any evidence that they are not running. We were even told that 2 pumps was overkill so they could be each running at 50%.

 

[Shayne]

For all we know it is running we might just not hear it. There are multiple pumps and they might not be running at full capacity so they make less noise but we have not seen any evidence that they are not running. We were even told that 2 pumps was overkill so they could be each running at 50%.

What are you seeing?

On 40 amp it jumps around like a jack rabbit, on 32 amp it works steady?

Heat is not an issue here. At least never has been it was the cold that killed it at first.

Do you think I should open the cover on my charger and switch the dip switch to 32 amp for a bit? Real hit in speed and you can not go around dropping everyone's charger amps when you need to use theirs? Popping the charger sealed cover I am really not into but it could be months until we see a fix

May be a steady 32 is faster than set to an up and down 40 amp? Don't think those pulses are a bonus or anyone would want it to work that way therefore most likely an oops? Definitely a software update is involved. We need a restore point and fall back . All in time I guess and Ford software is no where near that yet.

 

[kdryden99]

What are you seeing?

On 40 amp it jumps around like a jack rabbit, on 32 amp it works steady?

Heat is not an issue here. At least never has been it was the cold that killed it at first.

Do you think I should open the cover on my charger and switch the dip switch to 32 amp for a bit? Real hit in speed and you can not go around dropping everyone's charger amps when you need to use theirs? Popping the charger sealed cover I am really not into but it could be months until we see a fix

May be a steady 32 is faster than set to an up and down 40 amp? Don't think those pulses are a bonus or anyone would want it to work that way therefore most likely an oops? Definitely a software update is involved. We need a restore point and fall back . All in time I guess and Ford software is no where near that yet.

I get the feeling that we will need the harness. I dont think any software fix is coming

 

[Shayne]

I get the feeling that we will need the harness. I dont think any software fix is coming

Let us know how that goes. Do you think this will be something Ford will come out and let people know about or will it be only for those that push the issue while letting others sit with crappy L2 charging? Kind of matches DCFC now and have to say getting really tired of this.

 

[kennethjk]

I charged up last night and this morning at 32 amp and it was steady except for one jump, no yo-yo up and down

i did not here any pumps running but didn’t follow all night . Car charged to 100 as I requested so no problems with that.

guess I will stay at 32 amp (I normally do anyway) but they need to fix. If a software update screwed it ip I would think a software update can fix it.

 

[Shayne]

I charged up last night and this morning at 32 amp and it was steady except for one jump, no yo-yo up and down

i did not here any pumps running but didn’t follow all night . Car charged to 100 as I requested so no problems with that.

guess I will stay at 32 amp (I normally do anyway) but they need to fix. If a software update screwed it ip I would think a software update can fix it.

Thinking out of the box they are having problems with AC charging overheating and damaging hardware (mostly in hot climates) so they adopt a software update across the board to deal with that. This cripples the Job 1 vehicles. The ups and downs can not be a wanted result so the software has to be a bit of an oops but the general principle will live on. This is software driven but may be here to stay? @kdryden99 may be right?

As far as Ford looking for brownie points from hydro suppliers I would think that is the owners responsibility to charge off peak and Ford would not bugger up L2 charging for that. Guess.

 

[kdryden99]

I keep on hearing that @Ford Motor Company is aware and working on it but you would figure that if this was the case they might advise service centers to not replace the harness and wait for the fix. But the dealers are relying on their past experiences and solutions because they don't have other instructions. This also leads me to believe that like the braking issues we had before, that we will always know before any dealer or Ford does and that a fix is nowhere near right now.

 

[kdryden99]

I do have to say though my dealer experience has been nothing but top and that they're probably one of the best dealers in all of North America because their service has been fantastic

 

[Shayne]

I do have to say though my dealer experience has been nothing but top and that they're probably one of the best dealers in all of North America because their service has been fantastic

That has been my saving grace my service takes time but competent (really good). Never had a brake problem they would stick and I'd goose it and break them off. Me no charging schedule SOBDMC replaced, 12 v dying multiple times replaced 12V once but continued, HVBJB and BECM replaced, Software locked me out of sync, door fault and the glass recalls. I went in for the rear brake harness but that was not a show stopper here like the others and now charging craps out. Normally you have to put up with these things for about 4 months. Service can not do anything until Ford gives them the thumbs up.

Let us know if the harness is the fix.

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