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by kiev
Sat Jul 21, 2018 7:43 am
Forum: Modifications & Accessories
Topic: Supplemental cooling for the charger.
Replies: 74
Views: 50152

Re: Supplemental cooling for the charger.

During the course of dismantling jay's charger i discovered that the 'clear' plastic sleeving and black heat shrink tubing on the inductor and transformer wiring had somewhat melted and fused together. i don't know at what temperature that would occur, but it is likely greater than 360 F. i've never...
by kiev
Fri Jul 20, 2018 2:36 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 748
Views: 461589

Thermal Contact Patch

Seems to be quite small and limited for such a big and heavy box with liquid cooling. Here is the heatsink area in the top plenum covered in thermal paste. i'm going to clean and check the flatness.

Image
by kiev
Thu Jul 19, 2018 6:04 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 748
Views: 461589

Bottom of Bottom Board

i haven't traced the circuits yet, just opened the top of jray's box to remove the boards. This is a view of the plate that attaches to the heat sink. It is covered with a thermal paste that is non-conductive electrically and is really too thickly battered in places--excess compound defeats the purp...
by kiev
Thu Jul 19, 2018 6:01 am
Forum: General Technical Discussions
Topic: Help with scanned error codes
Replies: 21
Views: 15348

Re: Help with scanned error codes

The picture shows that the car is in R, Reverse. It will not start and go to READY unless in Park, or Neutral.
by kiev
Mon Jul 16, 2018 8:43 pm
Forum: General / Main Owners Forum
Topic: hobdrive - and i-MIEV ion zero, show electronic control units, reset errors
Replies: 154
Views: 111982

Re: new program for monitoring charge readings

This looks like an interesting app.

Will it work with the OBDLink scantool (STN chip?), or does it require an ELM327 chip device?
by kiev
Mon Jul 16, 2018 7:01 pm
Forum: Batteries and Battery Management
Topic: Switching on the balancer for an individual cell
Replies: 9
Views: 6343

Re: Switching on the balancer for an individual cell

A fellow contacted me about reading the CAN buss between the BMU and the CMUs, and from looking at the data has figured out how to turn on the balancing on one of the 4-cell CMU boards. Here are couple of videos showing the pulsing resistors with a thermal imaging FLIR camera. The visual overlay is ...
by kiev
Sun Jul 15, 2018 4:59 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 748
Views: 461589

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

What do you see on the back side?

The heat shrink has exposed quite a bit of the sides and tops of those big electrolytic caps.
by kiev
Sun Jul 15, 2018 2:42 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 748
Views: 461589

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

p.s. Good job on getting the board out and scrapping off the coating.

p.p.s. Current Sense Resistor R232, 8L00 = 8.00 mOhm 1%, is showing a bit of thermal scorching.
by kiev
Sun Jul 15, 2018 2:32 pm
Forum: Off Topic
Topic: Admin: Posting Pictures on this Forum
Replies: 42
Views: 35023

Re: Admin: Posting Pictures on this Forum

Here is another link with examples of the how to find the imgur "share links" that are used to post photos in the forum message. http://myimiev.com/forum/viewtopic.php?f=23&t=4079&p=36625#p36625 No gold members were harmed in the filming of this show... p.s. i don't see any red let...
by kiev
Sun Jul 15, 2018 2:27 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 748
Views: 461589

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

Okay i can click and see the picture. But to make it show on the forum, you need to use the "Share Links". In the upper right hand corner of the picture while you are on imgur, there will be a pull-down menu, or it may show up to the right hand side of the picture if you click on the thumb...

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