Recent content by hgoudey

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  1. hgoudey

    clearing P0AA1 positive contactor error - resolved

    This project has languished a bit but still exists/runs (and still needs a lot more work to package everything back up cleanly). I did this project with my nephew as his senior project in high school (he is now graduating from college and hasn't had a a lot of time to work on it recently). There...
  2. hgoudey

    clearing P0AA1 positive contactor error - resolved

    Jim Pollock (Turbo3 on this forum), who created LeafSpy, has determined the special routine to clear the P0AA1 contactor code. He plans to add it to LeafSpy Pro in the future, but for now you can contact him directly (either PM the account I just mentioned, or use the email that is listed in...
  3. hgoudey

    clearing P0AA1 positive contactor error - resolved

    Many thanks to the awesome work of Jim Pollock (Turbo3) and creator of LeafSpy. He was able to determine the procedure to clear the P0AA1 code that was preventing my contactor from closing. This is an error that is likely to be encountered by folks hacking additional batteries or a vehicle to...
  4. hgoudey

    clearing P0AA1 positive contactor error - resolved

    Thanks for the reply arnis. To clarify, I never measured high voltage on the switched side of the contactors, but I have measured 372V on the battery side of the contactors (the battery pack is out of the car with the lid off but still assembled as original). I have removed all the other...
  5. hgoudey

    clearing P0AA1 positive contactor error - resolved

    Updated - 3/15/2017 Jim Pollock (Turbo3) of LeafSpy discovered the CAN procedure to clear the P0AA1 contactor code that otherwise requires Consult III+. Clearing this code will be a feature added to future versions of LeafSpy Pro, but you can contact Jim for help if you have this problem in the...
  6. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    It's nice to see that others are making steady progress. I continue to suffer from an acute shortage of time, but I'm still working toward and install, too. Any reason not to use smaller lugs to connect to the terminals of the large ceramic resistor? The charger will be pushing less than 10A and...
  7. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    I'm sure a $430 solution isn't what you are looking for, but the J inlet side of this connector pair is available as part of the factory replacement charging port assembly for the aforementioned steep price. Unfortunately, the other half might be part of the even more pricey ($1200) "engine...
  8. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    It should be possible to use the high current lugs for the HV connection, but given that the additional charger pushes less than 10 amps DC, perhaps it is feasible to tie into the much small screw terminals for the ceramic (bleed?) resistor. That way you don't have to touch the critical 250 Amp...
  9. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    Here is an overview and closeup of the HV input under the cover. The top PC board stands proud of the cover mounting plane. There is some room to lower it closer to the potted power electronics block, but it is quite tight and may require fabricating a new support bracket. I considered...
  10. hgoudey

    No Grid Power = No Solar Power

    It has been correctly pointed out that maximum power tracking mode is not compatible with load matching, by virtue of having to track the load it can not try to maximize available solar output at the same time. The float mode of a DC solar charge controller is closer to what Smidge has been...
  11. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    How are others thinking about going after the pilot signal from the EVSE? Presumably this is available on CAN as well, if one manages to decode it. I was considering the less elegant approach of using the CAN "bridging" microcontroller to monitor the PWM pilot signal directly off the inlet...
  12. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    From my cursory reading of the Brusa documentation, in the CAN mode it runs pretty much as a slave responding to commands, it uses no local programmed charge algorithms, so I think you only need to bridge the charge acceptance CAN information from the battery controller to the CAN commands the...
  13. hgoudey

    Adding a Brusa charger under the hood for '11/'12s

    Assuming the on-board charger will accept DC on its AC inputs (probably just rectified first thing anyway), the OBC can act as the DC-DC of which you speak. It has a wide voltage input 100-250VAC and puts out exactly what the battery management tells it to, so it might be possible to connect a...
  14. hgoudey

    EVSE Charging Power Monitoring with EKM

    Waidy, Have you abandoned your TED meter or is it just in use for different circuits? Even though google power meter is gone, there are a number of free cloud hosts for logging TED data. I have been using plotwatt and have been happy with the graphic plotting on their web interface (you can...
  15. hgoudey

    Dealer Charging Stations

    It sounds like you are on the right track by talking to your local dealers about changing their practices regarding EVSE access, but you might want to reconsider how much of that issue to project onto Nissan, the manufacturer. Dealerships are independent businesses, as this article explains, the...
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