Just a heads up for anyone building with MEB modules-
The captive nuts on busbars are designed in a way that excessive torque may make it start turning inside of the module
.......
I would advise to use contact grease on these busbar connections, if you are afraid of the bolt coming out - a spring ...

Yes, that's right. When you connect the charging plug, the contact pulls the optocoupler LED to ground, the relay is triggered and turns on the power to the vcu and charger.


I tried to wire one side of the brake switch but i couldnt make it work 100% as the body vcu goes to sleep after some ...

When I press the brake, power is supplied to the VCU, and if I press the "Start" button while the brake is pressed, the relay to support the 12V power supply is turned on and the VCU goes into "READY" mode. If I press the "Start" button when the engine is not rotating, the VCU turns off the power ...

Not connected with previous post...
Mazda motor broke crossmember to which i welded third motor mount to. It broke diagonaly across some lightening holes which were there from OEM.
Just to be clear, i put 3mm inox plade under the (drawn) formed cross mount and welded it at the farthest points of ...

I started fiddling with the VCU code for my Megane https://openinverter.org/forum/viewtopic.php?t=6114

This car has a "Start" button and it provides 12V to one wire that obviously served as a start signal for bunch of components including starter.
As i reviewed my processes i found a redundant ...

That makes it quite easy to modify.

For European situation where 3 phase is much better, but with the limitation of 7.2 or 7.4kW, it is probably best to add another 3.3/3.6kW charger on a second phase. So if the limit is 16 amps AC @ 230v but a second phase is detected, it could charge on two ...

Thanks for the link, but your link is not the same connector I think.
I ordered it from aliexpress also, but I think it was this one.
Aliexpress connector: https://www.aliexpress.com/i/1005002925074865.html


Apologies... i sent you the wrong pin count. I use that one with Outlander stuff ...

Well I received it but its only the connector housing. Where can I get the pins I don't know yet. Toyota worker that was at the desk today didn't know either.
.....


Its similar to Sumimoto TS 025 female connector that we use with Outlander system P/N 6189-1092.
Pins are Female P/N 8100-3455 ...

Guess I didn’t :( was hoping for a good system to use that wasn’t over 1k


800Vdc system for sub 1K€???!!! You must be joking.
Think about what the EV system entails... Motor, + Inverter + DCDC controler + Charger + Heater + AC compressor and maybe something more, like the battery....
That ...

To successfuly start the car and for every aux item in the car to work,, RPM signal is needed. In the case of 1.6 16V ICE engine this signal is picked up at the transmission flywheel. On the flywheel is toothed belt with 60 teeth pattern. This pattern is broken by two teeth missing at the RPM count ...

I made another small contribution to this VCUs code.

In my code i included undervoltage safety so that car would notify the driver of inverter nearing to low battery voltage. I thought to setup two phases. The first phase is when battery would pass the mark of 3.3V per cell (316Vdc). The second ...

....
two rear outlander motors and two rear outlander inverters, throtcur= 5,5.
....
I was getting consistently 6 seconds up to 100 km/h at 250-280 volts.


6s !!! thats insane!

That rear inverter looks smalish. Did you cut away rest of the case and kept the IGBT part? In that case how did you ...

ZEVA BMS programming

For this i use just a simple AVR USBasp programmer with custom built cable.
https://hobbycomponents.com/usb-interface/841-usbasp-avr-programmer-adaptor
AVR ISP.jpg
LC-01 USBASP AVR download cable / AVR programmer / 51 ISP the downline lines programming /AVR ISP / / USB ISP ...

johu wrote: ↑Sun Apr 27, 2025 4:51 am Nice work!
Any road worthiness tests required? Since it's already EV and you just change small details

Might be because I replaced the engine, there is no transmission anymore and voltage is changed a bit... no biggie .

If I can't do it here I will go to some other EU country...

Driveshafts

To use Outlander motor and gearbox I needed to splice Renault Megane outer driveshaft parts to each of the Outlander inner tripod parts.
This was made on a lathe since this is the best way to balance the end product, however it was also the diameter difference between the slimer ...

Front battery box mount

I will use multiple battery boxes. Each box will consist of 24S connected CALB cells. There will be 24S ZEVA BMS module in each. Also i will build in 10mm copper tube with alu plate to transfer heat/cold. This will be my thermal management for each box.
20250126_201451.jpg ...

Hey guys,

I have around 280 LGCHEM E66 modules available, very little use (<50 cycles).

These are Porsche Premium Platform modules (Taycan/Audi GT).

They are 6s2p configuration (NMC 712), around 2.8kWh per module.

€75/kWh

All details available on request.

Cheers,


Location for pickup ...

I'm using the 450h inverter, using the sync serial comms. I do have regen, but it's not active at this low of RPM. I'm still experimenting with creep, but I'm not a fan of it, but maybe it'll help diagnose. It seems to not like low torque requests. If I set off a bit quicker its smoother.

Not ...

wow, that's heroic, great work!


Thanks...
It was a bit touch and go i admit. After i tried to reassemble resolver core i started to doubt myself and couldnt get myself to put the core back in. What if... In the end we went on a test drive and the car was good up to 147km/h... [sigh of relief ...

9. We went on and removed small bolts from front alu plate to allow us to lift the front part of the motor from the rest of the casing.
To my surprise the whole cooling channel will lift together with the front plate!!!
IMG_20250411_175044.jpg

10. Then i took the motor home to pry the bearings ...

Well we did it!

First, it was true. The larger bearing near the gearbox has almost failed. The noise was a simptom of grease not being there anymore...
When i opened the motor i saw quite some play in the front bearing. But i am getting ahead of myself...

BMW I3 Motor dissassembly

1. We disabled ...

I am just follow the logic.
As you say if that happen in your bench with only one BMS12 , but also with other different BMS12 alone, look that the problem can be with the EVMS brain or the display.
I dont think software is the cause, because i have the same software working correctly.


How do ...

the total voltage shown in the screen is the summatory of all the cells calculated individually.
So, what I would try is to isolate which bms slave is provoking this flicking voltage reading. Mounting each cell block and testing when appear the flicking.
If I had to bet, I would say that it is ...

Aliexpress items + HV, not recommended


My friend has one in his Mazda RX8 connected at about 300Vdc. He says it is legit for 2 years now.

I have one here prepared for installation. It is a 500A 500V version. I will install main unit and sensor inside plastic contact box just to see if it works ...

This is completely different from the Valeo-Siemens version in the PDF. The connectors are different (round metal instead of square orange), there are two PFC circuits inside instead of one, and it was manufactured in Hungary instead of China. In addition, there are several internal hardware ...