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Rapid Charger Says No

I'm currently working on adding rapid charging, in the form of Chademo. I've designed a hat to sit on top of an Arduino Due, containing 2 CAN bus transceivers,  a 12v input and 2 open collectors. This lives inside a 3D printed box. This is the brain of the Chademo system. Also located the inlet in the lower part of the front grille. A second set of contactors for the socket are required, so that it's only live when the charging station says so.



Full of hope and fear I headed for my local Chademo charger, tucked down the side of a hotel. With my laptop out I gave it a test. Charger says no, so off home I went, found an issue with the 2 start signal wires crossed over, and returned the next day. Still denied, but gets further, my controller now recognises the session start sequence, I need to get the CAN bus logger out and debug that part. Stay tuned, maybe next time will be a winner.






Comments

  1. RSThinks6 March 2022 at 07:40

    Why did you go with a Chademo socket instead of a CCS socket? There are more CCS equipped chargers than Chademo.

    ReplyDelete
    Replies
    1. Jamie16 May 2022 at 04:29

      Simpler protocol, cheaper hardware and most new installs are still including Chademo. I switch to CCS if the need arises.

      Delete

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