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 ...

larsrengersen wrote: ↑Sun Apr 13, 2025 2:32 pm Onboard charger from a Volvo XC90 from 2017
Volvo part 31491894

Interesting! Was that kind of charger actually used to charge in a conversion? Is CAN protocol known?
That would be a usefull addition for wiki...

Wooh! Sexy, compact and affordable for the 75V 300A. Thanks to share.
Can probably output the 5-10 kW continuous/ motor for your needs.
Those will spin a Leaf motor without too much challenge? Sensorless? Resolver signal?
Also, based on a 58V battery (up to 66V) is it better to pick the 100V or ...

Yes, a prop in the water don't need great torque control.
So, sensorless can work fairly well according to you?


Well Lebowski operates on hall sensor 6step untill about 100rpm then it switches to sensorless where it "sees" stator coil discharge spikes which it uses to sense where the magnet ...

Huh... Why complicate things? You will be running prop shaft and propeller with it no? Resolver is redundant there as long you dont need absolute position of the blades.
Leaf motor is PMSM...maybe you can test just ordinary PMSM mosfet inverter. You can get 10kw inverters off the shelf for low ...

Huh if i think analog to my Pug VCU i need to send it "engine running signal" for it to go out of eco mode and start cabin power supply. For me this signal is coupled from two parts... Engine RPM at least 800rpm and positive signal on the alternator signal wire. Then internal BSI starts car ...

I had indeed looked for PHEV batteries, and it's more of the same issues. For instance, the BMW batteries don't seem to be able to discharge more than 90 kW peak, which is significantly less than 250 kw. Thank you both for the replies!


Then you fit 2x BMW PHEV batteries for short of 200kW ...

prensel wrote: ↑Mon Mar 24, 2025 4:43 pm The 13P I had enough. for some reason did not find enough of the 5P and 2P but they should arrive 26th

I got both modules, thanks. See PM for other details.

Here is a bit of more info from EVClinic, might come in handy...

https://evclinic.eu/2022/11/06/fiat-e50 ... h-battery/