Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

Development and discussion of fast charging systems eg Chademo , CCS etc
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uhi22
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Re: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

Post by uhi22 »

Well, if we strictly stick to the topic of the thread, I would even call this a full success :-)
Summary: Tesla Model 3 2019 (EU) as "solar string" on Kostal Plenticore Plus (together with the amazon precharge converter) happily delivered 5kW for ~15 minutes.
lewurm
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Re: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

Post by lewurm »

Let's make that ~70 minutes :)

The car sent a PowerDeliveryReq with "ReadyToChargeState": "0", and then a SessionStopReq, last lines of the log is attached.

Also the alerts in the service menu are very interesting. Seems to be the threshold is 15Ah of discharge.
Screenshot 2024-11-19 at 10.15.59.png
Screenshot 2024-11-19 at 10.16.06.png
Edit: Including BMS_a076 / BMS_a076_SW_Dch_While_Charging and BMS_a174 / BMS_a174_SW_Charge_Failure as text here, so it's searchable.
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2024-11-190_car_aborts_after_15Ah_discharge.log
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Re: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

Post by johu »

Very nice! So that is 5 kWh roughly.
Just a random thought: if you command the inverter to actually charge the car for a few seconds maybe that resets something?
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