Of course there is a logical reason. And I'm still waiting for a plot of cruisespeed. We can tackle this systematically. Or not at all.

If you want to find out how developers get burned out look at this thread. I ask for X, I get nothing. So I have to ask again. And I can't help. Great way to ...

Brilliant, cool to see someone actually having some success in pursuing that path :)
Speaking of derating it will cut back before reaching udcmax just like it would under regen. You can also setup some CAN mapping between Orion and the inverter to modify the chargecur parameter.

As for efficiency I ...

I set up a wiki page https://openinverter.org/wiki/FoccciCape

I've also added the precharge supply back in. I connected a 10uF 400V elcap and a 1M resistor to the output. This gives it a pretty deterministic voltage ramp which I think is also slow enough (0-400V in 6s) so that the vehicle will just ...

I think you should set testchan to 10 and 11, respectively to test the voltages of the faulty channels. Like said, the mux is thereby locked to the channel you specify. -1 turns off channel testing, any larger value turn on the given channel.

Ok, that is a pretty obvious "some FET is always conducting" fault. Surprised this didn't show with the diode test.
Since you're in the UK sending stuff back and forth is a bit of a hassle (I have to drive to customs, pay import VAT). So could you go over it again yourself? With Q5 taking itself out ...

It's already on youtube

haha, managed to boot strap the SPI flash without solder jumpers on my second module :) All you need is the firmware image from uhis repo (https://github.com/uhi22/Ioniq28Investigations/blob/main/CCM_ChargeControlModule_PLC_CCS/CCM_FlashDump_SpiFlash_2MB_Ioniq_00_33_79.bin) and open-plc-utils.

We ...

Jacobsmess wrote: ↑Sat Nov 15, 2025 9:34 am So set test channel to any channel I want to check and then manually check voltage on the relevant fets with a multimeter?

That

Did I ever suggest to use the "testchan" parameter? It locks the mux to one channel. Then you can do more detailed measurements, e.g. gate-source voltage of the involved FETS

Yeah, send it over, can only learn

And it's in Just a reminder of what it used to look like


The switch became redundant for now because Ethernet is now only needed for inverter comms.

With a bit of consolidation I could go back to my single DIN rail enclosure

jrbe wrote: ↑Fri Nov 14, 2025 1:44 am How much regen do you run?

That's the thing, quite a lot. Not so much off-throttle but brake blending regen up to 40% of acceleration torque.

The original petrol motor went to 6500 but of course that's not an operating point you'd use. I think at highway speeds (130 kph) the input shaft spins at roughly 4000 rpm in 6th gear. I usually drive 120 kph max in 4th which is like 5000 rpm.
I don't measure transmission temperature but could stick ...

So you had a working resolver before taking the transmission apart. You have a non-working resolver after taking it apart and putting it back together. Correct?

You need to see a clean 0-359°C angle plot (1000 burst, 1000 points) in FOC firmware when spinning the motor by hand. Otherwise all other ...

And here's another closeup of the CP PWM slew rate On V2 will probably change it to TLV1805

double post https://openinverter.org/forum/viewtopic.php?t=6767

yes that is the primary reason why I didn't, the second one is that I don't want to dive too deep into field weakening and the 3rd is I want to be able to reach high top speed

Flashed the image directly today, works well with the solder jumpers.

Changed the PIB file for EVSE use and simply flashed with plctool. I had to change more than the 4 items commonly mentioned here, used this script: https://github.com/qca/open-plc-utils/blob/master/slac/evse.sh

I also changed ...

Hm... do you shift using clutch or simple upshift or downshift on unloaded motor?

No clutch, see above. But I hardly ever shift but keep it in 3rd


Touran should use 2.5l synthetic 75W-90 gear

Nailed it :) that was included with the tranny


What rpm are you spinning the motor to normally ...

Today we got cracking on the gearbox swap. I got an overhauled one for roughly 900€ delivered. It is in and very shiny

1762970099561.jpg

When turning manually even without oil it sounds much smoother than the crusty one
1762970099557.jpg

As arber suggested a lot of metal was in the oil. Did ...

And it's on the table
1762892021784.jpg

Almost worked out of the box, some resistors were not fitted and there ist a minor mistake in the pin mapping of the boost converter that makes +-12V for CP PWM.

With that fixed we have PWM
image.png

and the QCA chip is detected and communicates ...

moved to inverter section.

Please plot cruisespeed to make sure that isn't the culprit.
What you describe sounds like controller oscillation, in that case raising speedflt would help, 1 at a time. Perhaps also lowering speedkp if further possible

just connect it to the CAN bus alone without the other module. Of course there will be no parameters. Just start the update anyway and it should go through

ok, try keeping ena_in powered during update.

Are you running 500k CAN Baudrate?