MME Charging Mode Seems Confused

[bpbailey]

Given that we have two EVs in the garage, I typically alternate charging my MME with my Level 1 or my Level 2 charge station (whichever is available given the charging needs of my EVs). I have my MME set to charge between midnight and 6am to access the cheapest electricity available to me. Up until now (coming up on two years next April), my MME has "recognized" whether I have plugged in the Level I or Level 2 charger and responded accordingly (charging out of the my preferred charging time frame, if necessary, to ensure that Level 1 charging reaches 80% in a reasonable time frame). Within the past two weeks, my MME quit accurately recognizing when it is plugged into Level 1. When I plug into Level 1, it acts like it is plugged into Level 2 and gives me an "Estimated finish time" as if it was plugged into Level 2. Therefore, it will not charge outside of my preferred charging time frame. The only way that I have found to make my MME charge outside of my preferred charging time frame (when plugged into Level 1) is to tell it to "Charge to 100%". Of course, I rarely charge above 80%, so when I tell it to charge to 100%, I have to monitor it and tell it to stop charging when it gets to 80%. This is a pain in the butt. Has anyone else observed this problem and, if so, how did you "fix" the problem?

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[AKgrampy]

I do not know the answer but as a point of clarification will your car not reach 80% on L1 charging within your charge window?

 

[Mach-Lee]

Given that we have two EVs in the garage, I typically alternate charging my MME with my Level 1 or my Level 2 charge station (whichever is available given the charging needs of my EVs). I have my MME set to charge between midnight and 6am to access the cheapest electricity available to me. Up until now (coming up on two years next April), my MME has "recognized" whether I have plugged in the Level I or Level 2 charger and responded accordingly (charging out of the my preferred charging time frame, if necessary, to ensure that Level 1 charging reaches 80% in a reasonable time frame). Within the past two weeks, my MME quit accurately recognizing when it is plugged into Level 1. When I plug into Level 1, it acts like it is plugged into Level 2 and gives me an "Estimated finish time" as if it was plugged into Level 2. Therefore, it will not charge outside of my preferred charging time frame. The only way that I have found to make my MME charge outside of my preferred charging time frame (when plugged into Level 1) is to tell it to "Charge to 100%". Of course, I rarely charge above 80%, so when I tell it to charge to 100%, I have to monitor it and tell it to stop charging when it gets to 80%. This is a pain in the butt. Has anyone else observed this problem and, if so, how did you "fix" the problem?

Ha, I bet they changed it to deal with the "Why does it charge outside of my charging hours?" Stans, so they change it and now it's "Why does it stick to my charging schedule so rigidly?"

My solution would be to install enough Level 2 charging to get everything charged in your 6 hour window. Intelligent power sharing is the way to go if you want to share a circuit to charge multiple EVs.

 

[bpbailey]

I do not know the answer but as a point of clarification will your car not reach 80% on L1 charging within your charge window?

The issue is that when I plug into Level 1, my MME thinks that it is plugged into Level 2. Therefore, it gives me an "Estimated finish time" commensurate with Level 2 charging speed and will not start charging outside of my charging window because it thinks it will complete the charge within my midnight to 6am charging window.

 

[bpbailey]

Ha, I bet they changed it to deal with the "Why does it charge outside of my charging hours?" Stans, so they change it and now it's "Why does it stick to my charging schedule so rigidly?"

My solution would be to install enough Level 2 charging to get everything charged in your 6 hour window. Intelligent power sharing is the way to go if you want to share a circuit to charge multiple EVs.

I don't need to spend the money to upgrade my charging options. My Level 1/Level 2 charging options worked fine for nearly a year until the past two weeks. My assumption is that there was a software change that is screwing things up with Level 1 charging recognition.

 

[bpbailey]

Here is an example of my problem. I plugged into Level 1 this afternoon and this is the current charging status. There is no way that the car will add 11% (approximately 30 miles) in 58 minutes (from midnight start until 12:58am). This is the amount of charge that I typically get when I plug into Level 2. My MME believes that it is plugged into Level 2.

 

[ChuckA]

The estimated finish charging info is showing it’s making a bad estimate but is only information. As soon as your L1 starts charging at 3.0? kWh it should change the estimate.

I find these finish times unreliable and ignore them.

 

[bpbailey]

The estimated finish charging info is showing it’s making a bad estimate but is only information. As soon as your L1 starts charging at 3.0? kWh it should change the estimate.

I find these finish times unreliable and ignore them.

Prior to the past couple of weeks, the estimates that I have received have at least been close, and the estimates reflected whether I was plugged into L1 or L2 charging. The problem, now, is that it is using that estimate (which is always an L2 estimate, regardless of whether I am plugged into L1 or L2 charging) to start and stop charging sessions. Therefore, because it believes that it is going to achieve the 11% charge target in 58 minutes (in the screenshot example I shared), it will not start an L1 charging session outside of the target charging time and will discontinue an L1 charging session within the target charging time because it believes that it will complete the charging in the next charging time block. Like I stated in my original post, the only way for me to override this action, while plugged into L1 charging, is to tell it to charge to 100%.

 

[flapjake314]

that estimate program is INCREDIBLY bad. luckily it doesn't really matter? you know how fast your charger is anyway....

 

[Maquis]

The estimated finish charging info is showing it’s making a bad estimate but is only information. As soon as your L1 starts charging at 3.0? kWh it should change the estimate.

I find these finish times unreliable and ignore them.

L1 maximum net charge rate is about 1.1 kw.

 

[mcondo]

The issue is that when I plug into Level 1, my MME thinks that it is plugged into Level 2. Therefore, it gives me an "Estimated finish time" commensurate with Level 2 charging speed and will not start charging outside of my charging window because it thinks it will complete the charge within my midnight to 6am charging window.

Same issue here. All of a sudden app thinks it's charging on level 2 and gives bad info. Likely a software bug in latest update.

 

[bpbailey]

Same issue here. All of a sudden app thinks it's charging on level 2 and gives bad info. Likely a software bug in latest update.

THANK YOU!!! At least I know that I'm not the only one experiencing this and I'm not going crazy. Hopefully Ford will monitor this thread and fix the problem.

 

[bpbailey]

The estimated finish charging info is showing it’s making a bad estimate but is only information. As soon as your L1 starts charging at 3.0? kWh it should change the estimate.

I find these finish times unreliable and ignore them.

It doesn't change the estimate. It retains the estimate (which reflects an L2 connection) and shuts off charging prematurely believing that it will complete the charging in the next midnight to 6am charging session.

 

[EMX]

It is not just the app for me. It is the car that has started giving unrealistic charging time estimates. I have a 2022 Premium AWD Extended range, and only have a Level 1 (120 V) charger at home. For the past month or two, both the car and app report completely unrealistic charging times for a Level 1 charger. In the attached picture, I am at 28% at 1:03 P.M. on Wednesday charging with the Ford-provided Level 1 charger on a 120 V outlet. The car believes it will be at 80% on Wednesday at 5:45 p.m. In truth, it will take nearly two days to get to 80% from 28% on my Level 1. Before this change, the expected charging time was more realistic, and usually pessimistic (that is, I would usually complete charging in less time than the car predicted). Unfortunately, I can't figure out which update caused the issue.

Possibly related, around the same time, I started noticing that the coolant pump is running continuously whenever the car is charging on Level 1. I can hear the hum of the pump, and the gurgling of the coolant flowing when I remove the upper trim panel under the frunk. I have had the car since May 2022 and I don't recall the coolant pump running continuously while charging last winter. Either the coolant pump is noisier than last year, or something has changed in the software to cause it to run continuously while charging.

 

[Jimbo]

Same here. After the litany of "get ready" updates, mine seems to think it's charging L2 (ridiculously short time estimates and the cooling pump or something is constantly running) when it's just on L1.

Disconcerting, but thus far, at least it actually charges (unlike the folks in the related thread).

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