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by coulomb
Sat Nov 09, 2019 8:40 pm
Forum: General Technical Discussions
Topic: MCU 20A 450VDC fuse investigation
Replies: 23
Views: 2103

Re: Fuse Internal Element Views

On the PEC drawing there is a call-out for item 7, a small dot or blob of a tin alloy (solder?), which can be seen below. ... so this must be some secret sauce for making fuses. From the end of this page : "Another slow blow fuse is the "M" type (named for the inventor). This has a s...
by coulomb
Wed Nov 06, 2019 3:36 am
Forum: Batteries and Battery Management
Topic: CMU board notes, eprom, cell numbering
Replies: 16
Views: 1734

Re: eeprom readout for CMU Board

i noticed some possible ascii text string buried in here. It doesn't look like a VIN, but looks something like a mitsubishi part number, " 9? 94 A9 97 5? Z?". [For example, the label on BMU has part number 9499B116, and on the 8-cell CMU has 9499A794 with a serial number.] I note that if ...
by coulomb
Fri Nov 01, 2019 9:41 pm
Forum: Batteries and Battery Management
Topic: On-Board Charger (OBC) Warranty Extended!
Replies: 27
Views: 1724

Re: On-Board Charger (OBC) Warranty Extended!

pbui19 wrote:wonder if my 2014 iMiev is covered.

No idea.

But if there IS a cutoff date, that might tell us that they (think they) have fixed the problem at a certain point.
by coulomb
Tue Oct 08, 2019 2:55 am
Forum: EVSE (Charging Stations)
Topic: ChargePoint Charging Question
Replies: 101
Views: 12900

Re: ChargePoint Charging Question

Below is Chargepoint's analysis... Brilliant! It's more or less as we suspected; the car does something unusual but (as far as I can tell) perfectly legitimate, and the EVSE makes an invalid assumption (must be ramping down), and doesn't test that assumption later (is it drawing more current now? O...
by coulomb
Sat Sep 21, 2019 6:18 am
Forum: General Technical Discussions
Topic: Under the Cover--an Inside Look at a 2018 On-Board Charger (OBC2)
Replies: 4
Views: 341

Re: Under the Cover--an Inside Look at a 2018 On-Board Charger (OBC2)

i just got kiev back today with the new style On-Board Chargger So naturally, the first thing you did was to rip the covers off :D These will be much easier to repair-- no Waffle Plate™, all the high power diodes and transistors can be seen along the bottom board edges. This is indeed great news. S...
by coulomb
Thu Sep 12, 2019 6:56 am
Forum: Batteries and Battery Management
Topic: my 2013 Peugeot iOn will not charge :(
Replies: 23
Views: 1456

Re: my 2013 Peugeot iOn will not charge :(

kiev wrote: i took my car to the dealer yesterday to request a new chargger under the extended warranty letter. They said OK, no charge, we'll get it ordered.

I think a collective thanks is in order for Kiev's presumed part in making this happen! :ugeek:
by coulomb
Sat Aug 31, 2019 6:27 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 414
Views: 79943

Re: Blown Diode in the Waffle Plate

Now to consider how this plays for OBC failure-- And also how to repair an IGBT in the Waffle Plate™. Layout (for minimizing inductance and maximizing heat sinking) is probably too important to have something external grafted on. Plus, the IGBT probably failed shorted, and so needs to be removed fr...
by coulomb
Wed Aug 14, 2019 6:26 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: EV-ECU Reverse Engineering
Replies: 2
Views: 1732

Re: EV-ECU Reverse Engineering

use mmcflash to read this ecu Alas, the MH8106F chip seems rather mysterious. I haven't found a single datasheet for it as yet. This chip seems to often be used for vehicle ECUs, so I suspect that the lack of data is intentional, to make reverse engineering harder, so people can't do dangerous thin...
by coulomb
Fri Jul 12, 2019 4:58 pm
Forum: Batteries and Battery Management
Topic: Wrecked i-MiEV Battery Pack Discussion
Replies: 42
Views: 22942

Re: Wrecked i-MiEV Battery Pack Discussion

The manuals are online at this Russian site:

http://mmc-manuals.ru/Mitsubishi_i-MiEV/en

I hope that's the sort of manual you mean. It may take a while to find here the information you want is "filed under". It's worth persevering as the detail, when you eventually find it, is good.
by coulomb
Sun Jun 16, 2019 5:53 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 414
Views: 79943

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

Kiev,

re the temporary fuse: what's the thinking there? I'm really uncomfortable with a piece of wire to protect a 360 VDC circuit, even temporarily.

Especially when you've just been poking around and changing things.

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