Just a guess really: sounds like moisture either on the Vsense electronics or the connector or the logic board

wow, that's heroic, great work!

Holy crap, I'm so glad we don't have oil companies in Germany. The car lobby is already painful enough.
Would really miss your input from the user side...

Aaah! Set dirmode to DefaultForward
It's now in Neutral!

Got a chance to test my cooling scoops yesterday on a 350 km trip. Outside temp was 7°C so quite favorable. I drove 250 km then charged from 25 to 65% with 200A. Battery heated up to 44.5°C. I opened the scoops and after 50 km the battery had cooled down to 37°C. Then it started raining so I closed ...

The latest binary is here: https://github.com/uhi22/ccs32clara/actions (you need to log in). You need an esp32 web interface to flash the firmware and yes all versions run on all boards

Sorry I won't give away just boards, I want the bulky stuff gone.

Will check postage to UK for the entire inverter

I am
https://github.com/jsphuebner/stm32-car ... mebbms.cpp

It's not quite as universal as SimpBMS code as it hard-coded targets only the 2 48-channel modules but is easily adopted

Maybe this helps

https://openinverter.org/wiki/Parameters

Oh god, what a load of rubbish

I'd start by dropping fslipmax to 2 or 1.5 Hz and fslipmin to 1.5 Hz as well. Should already get you the reduction.

Mitchy wrote: ↑Tue Apr 15, 2025 11:30 am as whatever is coded has to be tailored to those can commands, rather than the OI commands.

This could be resolved by having the mcp2515 driver implement the CanHardware interface. Anyone?

No.
You'd have to hack up a custom json command and put your string in the "value" field, like is done with serialnumber. That will only work over UART though, not CAN, as the latter only downloads the json once.
Might be better to use integer values, then introduce special handling to the web ...

To be honest I'm not sure if throtcur shows as rms or peak
I run throtcur 5.5 and ocurlim 900 with leaf inverter

In plain CAN there are no main/sub hierarchies. Some call it a real time data base, as data can be put on there by any node and read by any node.

So if you want OI CCS to receive a current setpoint from OI VCU you have to make sure the VCU transmits and the CCS receives on the same channel (haha ...

Don't know what happened on your side. Also updated my 2.0 modules after you reported and they are fine.
Maybe you can build a tester, too? 16 resistors in series. like 270 Ohms or so. Then run your battery voltage (or better a lab supply) over all of them and tap off to the BMS. There shouldn't be ...

That or maybe bus bar your way out. Towards the middle of the motor, then cables?

I'm sure that helps too, but most of all it is about using the correct rotor position in the transformations. Wrong rotor position means crap in, crap out

Spent some though on it and it doesn't make sense to add CAN support to the boot updater as of now. If you have a processor without CAN bootloader you can't program the boot updater anyway. You always need UART access to do this.

No

I see a stack of PE-less CEE plugs piling up
I think this solution is legit for DIY V2G installations where you only run like 30A max. On the other hand my CCS plug was less than 100€ on ali.

Zieg wrote: ↑Thu Apr 10, 2025 9:51 pm Should I try bring syncadv up further now?

If you have no unwanted regen or acceleration don't change it! So 6 or 7 seems good?

GND to GND, "Voltage" to 5V, "Signal" to CUR+
Parameter idcmode to AdcSingle

I think the Leaf sensor outputs an asymmetric signal. So at 0A it sits at 3.2V or so. Can be adjusted with idcofs

Went out for a test drive myself now. Started with syncadv=10. Already in neutral it is much more controlled, I can spin up nicely to 7500 rpm without sudden takeoff like before.
But then on driving things looked differently. No self acceleration but 2 short bursts of unwanted regen when ...

Attached is a CAN log of all 9 modules connected to CAN bus. There you can check for ID clashes.
I didn't get any, maybe because VW maintain a table of all IDs they ever used?

Even the small BMS that only monitors one module sends out messages for 4 modules. So it's like 12 modules.

The code of ...

Moved to "User interface" forum. Please put topics in appropriate categories

Can you post a CAN log when it's not working?

There is no specific power on pattern, can be simultaneous or one after the other