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by coulomb
Fri Dec 13, 2019 8:14 pm
Forum: Other Electric Vehicles
Topic: Older Leaf driving impression (good value)
Replies: 8
Views: 1946

Re: Older Leaf driving impression (good value)

Leaf question: are those bars on the Leaf display a good enough indicator of capacity, or should one get Leaf Spy? The bars are pretty good; just don't put too much credence on the Guess-O-meter (distance to empty figure). Later Leafs have an actual SOC%, I wish mine had that. LeafSpy is good for g...
by coulomb
Thu Dec 12, 2019 7:07 pm
Forum: Other Electric Vehicles
Topic: Older Leaf driving impression (good value)
Replies: 8
Views: 1946

Re: Older Leaf driving impression (good value)

The J1772 port does not respond to trigger press to shut off the EVVSE, have to just pull out (scares me) You might have gotten that from me; I was wrong. They do respond to the trigger press; it's just that nothing visible happens. If you check the AC current or charge current with LeafSpy, it doe...
by coulomb
Wed Dec 04, 2019 7:28 pm
Forum: Batteries and Battery Management
Topic: Hack DC charging - limit to 30kW
Replies: 16
Views: 5058

Re: Hack DC charging - limit to 30kW

Actually doing that though would require an ECU modder who was willing to reverse engineer the firmware in the BMU - not an easy task I would think! I have tried to do that. I have had no success getting to the BMS master firmware; I've had limited success reverse engineering the CMU firmware. I'm ...
by coulomb
Sat Nov 09, 2019 8:40 pm
Forum: General Technical Discussions
Topic: MCU 20A 450VDC fuse investigation
Replies: 41
Views: 18308

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: 5186

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: 34
Views: 15871

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: 104
Views: 24910

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: 5
Views: 2392

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: 33
Views: 10925

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: 514
Views: 157225

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...

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