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  1. C

    Controlling the Leaf Inverter on its own

    I've been using my DIY inverter controller now for over 4000km in my project. It works well with full power and torque available. I've been asked about certain additional details about the inverter protocol (by email, mostly), so I went and added some to here...
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    LEAF CANbus decoding. (Open discussion)

    Never tried to decode that particular messsge, but 0xa9c0 divided by 0xffff (maximum 16 bit value) equals 66.3%, which is at least close.
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    LEAF CANbus decoding. (Open discussion)

    Project update: I was unable to reverse the charger CAN protocol to an extent that would have made it do any... well, charging. I did get the DC-DC converter to operate, but that was it. Basically I found out bit 0x04 in the 0x1f2 frame disables the converter (set low to enable, just spam 0x1f2...
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    LEAF CANbus decoding. (Open discussion)

    Nice! I predict this to be a bit more difficult than the inverter, but we'll see.
  5. C

    LEAF CANbus decoding. (Open discussion)

    Now I'd like to start looking at the charger! I intend to charge a rather large battery pack using the 2016 Leaf charger with a non-Leaf BMS. This means, I need an EV-CAN capture of some sort of a succesful charging session, or at least the beginning of one. EDIT: To be exact, one from an AC...
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    Controlling the Leaf Inverter on its own

    Controlling it like that sets the codes P3193 and U1000. According to the manual, both have "No impact to vehicle behavior". I couldn't get rid of them even by attempting to generate all the frames in carrott's capture, so I decided it's not worth it. P3193 is the inverter's "I'm not hearing...
  7. C

    Controlling the Leaf Inverter on its own

    Here's my publication on the minimum protocol and wiring details, as used in the video: http://productions.8dromeda.net/c55-leaf-inverter-protocol.html Enjoy! 8) Once figured out, it's fairly simple. Next I need to get the DC-DC converter working, and the charger, but that's for another thread.
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    Controlling the Leaf Inverter on its own

    https://www.youtube.com/watch?v=OZO9_JBVP14
  9. C

    Controlling the Leaf Inverter on its own

    That's what I'm going to start doing once I'm comfortable with trying it. In that photo I had the inverter open and disconnected from the motor, as I was playing with the EEPROM. Now it's sitting back on top of the motor with everything connected. I'll only connect it to the mains with a 2A...
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    Controlling the Leaf Inverter on its own

    I got the inverter to respond to DTC requests! It works exactly the way Leaf Spy Pro attempts to do it and does not require anything special. Was just a matter of messing up one of the many moving parts in these protocols... (well, I messed up the ISO-TP/CAN-TP framing of the UDS protocol. For...
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    LEAF CANbus decoding. (Open discussion)

    New thread started: http://www.mynissanleaf.com/viewtopic.php?f=44&t=25027
  12. C

    Controlling the Leaf Inverter on its own

    Meanwhile, I read the EEPROM again. This is the original content, now in xxd-friendly format: https://gist.github.com/celeron55/e052f4cb24415dda20f4362838cb1235 This is the current content: https://gist.github.com/celeron55/719242001011e0936d77e106f6c2b94a You can find for example the values...
  13. C

    Controlling the Leaf Inverter on its own

    You can check the more recent 11A format from carrott's logs. carrott's logs are not very useful for the timing purpose, as their time resolution is like 30ms - even messages known to be sent at 10ms intervals are grouped together at the same exact time. I do have 2011-2012 logs with precise...
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    Controlling the Leaf Inverter on its own

    I'm thinking 11A could be shift position signal from the VCM, or something similar.
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    Controlling the Leaf Inverter on its own

    Continued from the two pages of posts starting from here: http://www.mynissanleaf.com/viewtopic.php?p=513157#p513157 I've been trying to get any responses to any diagnostic messages from the inverter with no luck. It doesn't respond to, say, 784: 03 19 02 0B 00 00 00 00, or anything thereabouts...
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    LEAF CANbus decoding. (Open discussion)

    This inverter is, in fact, from a 2016 Leaf. I'm not aware of what changes they've done between 2015 and 2016, but's very nice to have this capture of yours! Any format works just fine, converting between formats is the least of my problems. My tooling is so DIY it really doesn't matter. I...
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    LEAF CANbus decoding. (Open discussion)

    Here are the links again (same data, different formats): https://pastebin.com/Vb3WGWks https://pastebin.com/dUAREEvr (don't have a real serial EEPROM reader so just dumped it with an arduino) The motor is going to be used in a DIY EV project. But, there's a full protocol reverse engineering...
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    LEAF CANbus decoding. (Open discussion)

    The board has two Renesas MCUs: R5F71476FPV (the big 32-bit one) and R5F2120 (a 16-bit one on the backside). Neither has internal EEPROM, and usually you don't store anything in flash when you have an external EEPROM at your disposal. More photos if someone is interested (including all chip...
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    LEAF CANbus decoding. (Open discussion)

    Ha, nice! Now I just need an Android device of some kind... LOL I modded a sure-fire way to clear DTCs from my inverter: Yes, it now has a replaceable EEPROM that I already read onto my laptop. This was the content: https://pastebin.com/Vb3WGWks (tighter format...
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    LEAF CANbus decoding. (Open discussion)

    I imagine then I'd just connect the EV CAN bus to the regular CAN pins of an ELM327, fiddle with some settings and be on my way? Any estimate on when this feature would be available?
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