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AC 3-phase charging only at 3.6kwh

Discussion in 'Cooper SE' started by Luis Abreu, Dec 10, 2021.

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  1. Dec 10, 2021 #1
    Luis Abreu

    Luis Abreu Member

    Hello guys.

    Not sure on what happened, but it seems like something is wrong when using ac 3-phase carging: instead of getting the 10.6 kwh, I'm only getting 3.6 kwh now. Single charging (from wall socket) and DC charging are working as expected. Any clue on what might be happening? Maybe the internal onboard charger broke? I've already done a couple of tests and the cable and charger are working fine (I've tested both with other car and everything is working as expected). I still haven't tested charging with a single phase type 2 cable (I'm thinking that using it might allow me to get 7 kwh and it would proove that something is wrong with the 3 phase onboard charger, but not sure if this is something I should do).

    Any clues on what's going on? Any ideas on how to troubleshoot this issue?
     

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  2. Dec 10, 2021 #2
    insightman

    insightman Well-Known Member Subscriber

    Ann Arbor
    Are you in Britain where 3-phase AC charging is possible? Check your settings. MINI ships the car to the US set to use the lower of two charging rates.
     
  3. Dec 11, 2021 #3
    Luis Abreu

    Luis Abreu Member

    Hi.

    No, I'm in Portugal. The setting you mention is the level 3 charging that can be set to maximum or reduced iirc (there's another which is used for setting level 2 charging from the wall socket). That charging doesn't really affect 3 phase charging though it will affect single phase charging from 32 amp boxes.

    Any more ideas?
     
  4. Dec 11, 2021 #4
    insightman

    insightman Well-Known Member Subscriber

    Ann Arbor
    It sure sounds like the problem so many US owners experienced before correcting their charging settings. You wrote that your 3-phase EVSE works as expected with a different car--can you try your SE on a different 3-phase EVSE? If you're sure the settings are correct for 3-phase charging, that's the only simple diagnostic I can think of.
     
  5. Dec 11, 2021 #5
    Luis Abreu

    Luis Abreu Member

    THe more I look into it, the more it seems like there might be an issue with the on-board charger...anyone knows if using an obd + android app is enough for getting the on-board charger status?

    Btw, one more question: according to the charging table presented here, I think that using a single phase cable on a 32 A 3 phase charging station should give me 7.4 kw, right? Just asking to see if getting a single phase cable might help me get more charging speed until the issue gets solved...
     
    Last edited: Dec 11, 2021

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  6. Dec 11, 2021 #6
    Carsten Haase

    Carsten Haase Well-Known Member

    Nope, pretty much none of the ODB apps work for EVs since they are not required to comply with the standard. The only app that'll connect is "electrified" but it only a small amount of live info and definitely no troubleshooting
     
  7. Dec 11, 2021 #7
    Puppethead

    Puppethead Well-Known Member

    Twin Cities, MN
    Yes, maximum 1-phase Level 2 charging is 7.4 kW. This is what I get on my Level 2 home EVSE. 3-phase should be max 11 kW, but those of us in North America using J1772 connectors can't use 3-phase.
     
  8. Dec 11, 2021 #8
    Luis Abreu

    Luis Abreu Member

    oh bummer...it seems like it will take a while until this is fixed...
     
  9. Dec 11, 2021 #9
    insightman

    insightman Well-Known Member Subscriber

    Ann Arbor
    Please report back when the fault is identified and what the solution will be.
     

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  10. Dec 11, 2021 #10
    Luis Abreu

    Luis Abreu Member

    What i meant was that my 3 phase type 2 cable works ok with other cars on the same charging station ( public charging station).

    This really isn't a software configuration issue... It was working fine 4 days ago. Unfortunately, it really looks like the on board charger is damaged...
     
  11. Dec 11, 2021 #11
    Luis Abreu

    Luis Abreu Member

    I'll do that...
     
  12. Dec 11, 2021 #12
    insightman

    insightman Well-Known Member Subscriber

    Ann Arbor
    Oh, I didn't realize it was working before. I just jumped on the problem many owners encounter with their new MINI Cooper SEs. Because it used to work but no longer allows full-speed charging at the same public 3-phase EVSE, your suspicions are probably correct. If the problem is the on-board charger, it's nice that it kept trying to do its job as best as it could at a lower charging speed.
     
  13. Dec 12, 2021 #13
    Luis Abreu

    Luis Abreu Member

    True... On the other hand, and since i do my charging on public stations, it's really bad... Until now I was able to get 30% in 1 hour. Currently, it barely reaches 9%...
     
  14. Dec 12, 2021 #14
    Godfrey

    Godfrey Member

    This may not be helpful because it isn't an Android app, but I've been using a free iPhone app called mi3 that I learned about from a post by @MichaelC. I've been using it to get more precise SoC values before and after charging on the "EV" tab, but I noticed a "Charging" tab as well. I just plugged in my SE to see what charging data shows. Again, this may not be useful without an iPhone, but it'll show some of the data that's available through ODB. Screenshot below from a couple of minutes after plugging in with my Grizzl-e set to 24A.
    mi3_charging_tab_reduced.png
     
  15. Dec 13, 2021 #15
    Luis Abreu

    Luis Abreu Member

    Hello.

    It shows plenty of info...it even shows the number of phases that is being used... Thanks for the tip.
     
  16. Dec 13, 2021 #16
    Godfrey

    Godfrey Member

    I noticed that the narrow screen of my iPhone 12 Mini truncated one of the items on the mi3 screenshot in my previous post. This morning I tried the mi3 iPhone app on my iPad while car was charging and got slightly wider screenshots. (To find it in the iPhone app store, searching on "mi3" didn't do it for me--searching "mi3 ev" found it.)

    Charging and EV tabs are shown below. (I let app run a few minutes before taking screenshots so chart could fill in a little. A little bit of vertical scrolling is required in practice to see all the content below; for each tab, I spliced together two screenshots to show entire tab content.)

    mi3_charging_ipad.png mi3_ev_ipad.png
     
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  17. Dec 13, 2021 #17
    Luis Abreu

    Luis Abreu Member

    Thanks... Plenty of info there...

    Today I've went to the dealer and they have finally managed do reproduce the problem. Now they've reported the issue to BMW and we should get a response tomorrow...
     
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  18. Jan 3, 2022 #18
    Luis Abreu

    Luis Abreu Member

    Hello guys.

    Just to give some more info: it seems like there's a problem with the on-board charger (KLE) which will be replaced next week...

    Oh, and Happy new year everyone!
     
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  19. Jan 10, 2022 #19
    Luis Abreu

    Luis Abreu Member

    Hello again guys.

    More feedback about my issue with 3-phase charging. So, today the KLE was replaced and guess what? still charging at 3.6kw...now, they're waiting for instructions from B;W to see if they should replace the EME.

    What a mess!
     
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  20. Jan 10, 2022 #20
    insightman

    insightman Well-Known Member Subscriber

    Ann Arbor
    Thanks for keeping us updated. What's the EME? Does it control the KLE onboard charger?
     
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