TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Firmware 5.9: Smart Charging finally works!

Discussion in 'Model S: Battery & Charging' started by widodh, Apr 4, 2014.

  1. widodh

    widodh Model S 85kWh

    Joined:
    Jan 23, 2011
    Messages:
    5,750
    Location:
    Middelburg, The Netherlands
    #1 widodh, Apr 4, 2014
    Last edited: Apr 4, 2014
    So, I just got FW 5.9 on my car and finally Smart Charging works.

    In the Netherlands such setups are very common. A house might have a 3x25A main connection and the Model S has to charge on that connection.

    The problem is, that when the car is charging and you turn on a stove or other heavy electric appliance, you might go over the 25A and blow the main fuse.

    For this Smart Charging exists. Both Smart EVSE and Open EVSE support this.

    The bug with Model S was, if the charging station said to the car: "Go down to 8A", it would go down. If the EVSE then said: "Go up to 20A", it would stay on 8A.

    This now works. I just verified it by setting the current back to 20A from 30A. That worked, Model S responded within 5 seconds. Then I set the max current to 24A and that worked as well. Within 10 seconds it was charging at full capacity.
     
  2. drees

    drees Active Member

    Joined:
    Jun 23, 2009
    Messages:
    1,211
    Location:
    San Diego
    Nice! This will also be good for people who use the dual-plug Chargepoint CT4000 stations which can go between 16-30A depending on how many plugs are in use.
     
  3. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Well-Known Member

    Joined:
    Jul 12, 2012
    Messages:
    6,516
    Location:
    Maine
    Also important for Tesla's "PrettyGoodCharger" idea of having a single charger unit charging many cars on L2 at once.
     
  4. L@urens

    [email protected] Family, Racing, Karting, MTBing

    Joined:
    Sep 25, 2013
    Messages:
    724
    Location:
    Enschede, NL
    Awesome, now how did you get 5.9? OTA?
     
  5. gelden

    gelden Well-Known Member

    Joined:
    Apr 21, 2013
    Messages:
    5,139
    Location:
    Breda, Netherlands
  6. glhs272

    glhs272 Unnamed plug faced villian

    Joined:
    Aug 21, 2013
    Messages:
    832
    Location:
    Burlington, WI
    This is cool. I would like to tailor my OpenEVSE to follow a Solar Array's output (when I get them installed this spring). Now I know it can be done. :)
     
  7. pwillemse78

    pwillemse78 Member

    Joined:
    Aug 26, 2013
    Messages:
    950
    Location:
    nuenen
    Finally, don't have to sit in the car anymore waiting for the current to go up and manually change it in the Tesla... however, still need 5.9 :)
     
  8. Gerardf

    Gerardf Active Member

    Joined:
    Sep 16, 2013
    Messages:
    1,378
    Location:
    Culemborg, The Netherlands
    Great ! Thanks for testing this.
    Hope 5.9 shows up on my car soon. Can't wait to test it as well using Fuzzy's SmartEVSE !
     
  9. widodh

    widodh Model S 85kWh

    Joined:
    Jan 23, 2011
    Messages:
    5,750
    Location:
    Middelburg, The Netherlands
    Yes, OTA. I got back from a week Germany (without my Model S) and I saw there was a update available.
    Indeed, those cool things are now possible!

    In the future Smart Charging will be become more important everywhere.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC