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Sevenstax / FreeV2G

Python based Host MPU Application for the use with 8DEVICES WHITE-BEET Embedded ISO15118 Module modules to realize IEC/ISO15118 and DIN70121 conform charging communication between electric vehicles (PEV) and elevtric vehicle supply equipment (EVSE). FreeV2G can e.g. been used with a Raspberry Pi.
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BMW iDrive 50 + Polestar 'session stopped' after start charge #241

Closed JGitSchel closed 11 months ago

JGitSchel commented 11 months ago

Your Setup Interface: Whitebeet carrier board (WB-CARRIER-BOARD-EI) Platform: EVSE Firmware Version: i.e. V02_01_00 Host Controller Interface: SPI Host: FreeV2G (Master from SevenStax Git, implemented in own code)

Describe the bug After precharge BMW iDrive 50 and Polestar send session stopped. BMW directly (EV's relay not activated, so not even current - so DC measured output keeps 0.0A), Polestar starts relay, after three messages (_handleDCChargeParametersChanged) with increasing currents 1.0, 2,1A, 3.4A [current is also measured on DC output) Session Stopped is received. BMW does not even start charging.. it directly sends an session stopped.

To Reproduce See attached log for charge steps. I've tried a lot (for example, send setpoint voltage in case the read voltage is not within spec for the EV, send modified charge current for same reason, add more processorspeed etc. but every time at the same point bot EV's send Session Stopped.

Expected behavior With other EV brands the session starts with 1.0A precharge and then increases to max power.

Logs Log of own code + debug FTDI interface whitebeet [?] We are using SPI, mirror is enabled, I see a lot of homeplug+TCP messages over eth0, is this you need as log too?

Additional c Log_18-9-2023_Own code.zip Log_18-9-2023_Own code.zip ontext Add any other context about the problem here.

lho-stx commented 11 months ago

Hey @JGitSchel,

thank you for using the template.

From the UART logs I can read, that there is a session error. I need to have a look into the network traffic. Can you please create a wireshark log? We have a guide for this, you can find it here.

Thank you and best regards, lho

github-actions[bot] commented 11 months ago

This issue has been marked as stale because it has been open for 14 days with no activity. Please update this issue or it will be closed in the next 7 days.

github-actions[bot] commented 11 months ago

This issue was closed because it has been inactive for 7 days since being marked as stale. If your issue still persists, feel free to reopen!