The overall block schematic is here: https://github.com/uhi22/pyPLC/blob/master/doc/EvseMode.md, added also some photos of my setup there. The raspberry (or windows laptop) running pyPLC connects with an ethernet cable to the tp-pa4010. The tp-pa4010 and the arduino are powered by 5V from an USB pow...

I have a couple of questions on the Clara parameters: 1) UdcDivider: Is this only used if InletVtgSrc is set to 1? If it is being used, it should be mapped as a 'Receive' message? 2) What is the purpose of InletVoltage? If I supply it via CAN, I must measure across the charge inlet DC pins and not ...

First Idea would be the CANopen communication between the web interface and Clara.

johu wrote: ↑Mon Jun 10, 2024 8:29 am Question: Can the powerline modem be used as-is only with patched PIB? Like capacitive coupling from L to CP?

Yes, this should be fine. Even just running CP and L in the same cable for a meter should most likely be sufficient coupling.

Great to hear your progress. Basically it is your decision which messages you want to use.

Nice small converter. It seems to have a diode-capacitor-ladder to bring the AC to a multiplied DC voltage. So it is able to deal with back-feeded DC with no harm.

The video does not open, it says "private". Stored the decoded log here: https://github.com/uhi22/pyPLC/blob/master/results/2024-06-11_Griffigroen_polestar2_stop_in_precharge.pcapng.decoded.txt It shows that we run into precharge, the car is demanding 426V. The pyPLC pretends a precharge a...

I'm not using the latest (because I'm too lazy ;-), but an older one. This shows after pressing and releasing the EN (aka Reset) button: rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, ...

The prove-of-concept of a separate software-controllable precharge-supply is available here: https://github.com/uhi22/stepup-test#le ... ut-voltage

Some ideas: 1. check whether you found a CAN bus. While disconnected the battery, use an ohm-meter to check the resistance between CANH and CANL. Should be around 60ohms, because the CAN is nominally terminated with 120ohms at each end. May be ok to see something between 120ohms and 50ohms. 2. using...

I assume a switch and maybe one or two resistors. Just add an ohm-meter to the two non-motor pins and use your 12V to turn the motor to both ends.

There are multiple CAN busses in this car. You write "after the diag socket", this sounds like the diag CAN, and this is silent if you did not connect a diagnostic tester to the OBD socket. The komfort CAN you find eg in the front doors.

First recommended action is to check the voltage of each cell. If below 2.5V, I would not charge anymore. There is the topic with the dentrids which lead to internal shortcuts and thermal runaways. If all cells above 2.5V you should be safe to charge maybe block-wise with an adjustable bench supply....

To clarify some confusion: From what I know the torque app uses diagnostic communication, not the normal cyclic CAN messages. The diagnostic of a certain control unit runs over a pair of CAN messages, a request (from the diagnostic tester, e.g. torque, to the control unit), and a response (from the ...

Strange. Seems it is not your fault, the big pictures are correct, only the preview is wrong. Maybe @johu could check the tool which creates the preview.

Which kind of battery? Which chemistry? How many cells in series? BMS?

Do you say that your pics change the orientation when you upload them? I never observed this, not on Android/Chrome and not on Windows/Edge.

Looks good. For the wakeup line I cannot decide, I have no clue what the BMS and OBC expect or provide at this line.

Is the error message still the same "Compilation error: redefinition of 'int esp_intr_flags_to_level(int)'"? This would mean, that something in the Arduino IDE or in the board support for the ESP changed, so that this function is now visible twice to the compiler. One instance is in the pr...

Uwe is charging the laptop with Foccci. The label on the alpitronic charger says "Einfach Schnell Laden", this is "Simply Fast Charging". Fits quite well

Maybe just wait 10ms or 20ms between the requests, to give the messages the chance to be transmitted. Then a complete scan of 127 nodes would take less than three seconds, which sounds acceptable from my point of view for our use case.

Or create a pull request for the canopen python library.

What is the range of node ids when scanning? Foccci is at 22, maybe not in the scan range?

This looks good, the only remark from my side is the grounding. I would not route the ground via the Foccci connector, but instead: - wire the ground for the contactors to a "power ground" point which has a solid connection to battery minus. Do not route this contactor current over the gro...

To find out the changes of the code, there is the commit history in github. https://github.com/uhi22/wifican/commits/main/
This shows, that there are no changes since two months.
I can only guess, maybe an incompatible library or board was installed.