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by coulomb
Sun Jun 21, 2020 4:55 pm
Forum: Batteries and Battery Management
Topic: 12V battery cumulative drain higher then overall charging.
Replies: 19
Views: 777

Re: 12V battery cumulative drain higher then overall charging.

With the ~13mA drain, does it stay that high for ever? I mention this because I've been checking the current drain on my 2012 Leaf; it has terrible problems with auxiliary battery drain. The Leafs draw hundreds of milliamps for ten minutes (with a step down or two in that time, starting at over two ...
by coulomb
Sun Jun 21, 2020 4:29 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 159220

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

All that soot and molten metal [pic# 21]looks to me that the OBC was operating with a split snubber [pic# 11] that was arcing and eroding over some length of time. Look at the size of that gap! That looks like arc erosion has just eaten out the guts and spread it inside the box. I agree, and was th...
by coulomb
Sat Jun 20, 2020 5:06 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 159220

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

I guess there is a lesson to be learned from this repair. If you choose to replace the capacitors without removing the lower board from the Waffle Plate™, you risk leaving some soot on the top of the Waffle Plate™. I'd say the devices themselves would be fine; that potting mix and the epoxy of the d...
by coulomb
Sat Jun 20, 2020 3:44 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 159220

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

I added the odd numbered images in the above post, for those that might have missed my edit. [ Edit: and re-ordered in order of date and time. ] Do you know if Mr. Wilbrink had to replace the parts on the Waffle Plate™ that appear to be burned? Or did they just get really hot and yet survived? [ Edi...
by coulomb
Sat Jun 20, 2020 3:16 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 159220

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

Those images didn't display for me, due to what seems like a https problem (maybe expired certificate). [ Edit: I see that once I forced the certificate on one, they all displayed. Or maybe it was because I viewed and saved them all; anyway, I hope it saves some readers a lot of trouble. ] [ Edit 2:...
by coulomb
Fri Jun 12, 2020 10:36 pm
Forum: General Technical Discussions
Topic: MUT3/MUTIII Clone Software
Replies: 10
Views: 2815

Re: MUT3/MUTIII Clone Software

Could you please send me the image or archive of the 2012 CD-Rom with the additions of i-MiEV? Сan google drive Try this link to a zip of the files (526 MB): https://drive.google.com/file/d/1ujgwMVd5u0Ylr-zKz2ZI7CMC7bFK4YUf/view?usp=sharing I didn't realise I already had that zip up there, so I hav...
by coulomb
Sun Jun 07, 2020 5:09 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 159220

Re: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter

Found a burnt out element C545 https://i.imgur.com/D1KBjS5.jpg Eek. Judging by the thick track that appears to be leading from it, and its proximity to the chip, I'd guess it's a supply bypass capacitor. For that to burn, I'd expect a lot more carnage elsewhere, unfortunately. Good luck!
by coulomb
Thu Jun 04, 2020 6:12 pm
Forum: General Technical Discussions
Topic: MCU 20A 450VDC fuse investigation
Replies: 41
Views: 18446

Re: MCU 20A 450VDC fuse investigation

On both of the 2011's that I've worked on with multiple EVSE, they never respond to the button push, and only break current when the shorter proximity pin comes out. Pull the plug very slowly, and you'll hear the EVSE contactor open up, but yank it fast, and there will be a little arc as you unplug...
by coulomb
Sat May 23, 2020 10:44 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 86
Views: 22918

Re: not charging my iON, cell or CMU or BMU problems

I appear today to have confirmed that the MUT3 can renumber CMU BMS PCBs I actually thought that they would renumber themselves, using a daisy chained pair of wires between each CMU. Are you sure you needed the MUT3 for this? Perhaps the MUT3 is needed to "kick things off", and the CMUs t...
by coulomb
Sat May 09, 2020 9:35 pm
Forum: Batteries and Battery Management
Topic: No READY. P1A15 error. Condenser charge timeout.
Replies: 59
Views: 24108

Re: No READY. P1A15 error. Condenser charge timeout.

I have hope that pictures will be available.. They are, thanks. It turns out that flickr.com is one of the hardest ones to extract actual images from. Imgur.com is easier; you'll find a lot of images on this site hosted there. https://flic.kr/p/2iZe2cj https://flic.kr/p/2iZe2C9 https://flic.kr/p/2i...

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