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

48V model Y?

Discussion in 'Model Y' started by Hank42, Sep 5, 2019.

Tags:
  1. Hank42

    Hank42 Member

    Joined:
    Sep 30, 2012
    Messages:
    348
    Location:
    United States - NY
    I read that Elon was hot and heavy about updating the old 12V standard to 48V in the Model 3 prior to it's release, but got shot down because of the delay something like that would cause. I haven't heard anything about it since, but was wondering if he still wants to do it, and if it might end up in the Y.
     
    • Informative x 1
  2. arghx7

    arghx7 Member

    Joined:
    Aug 6, 2019
    Messages:
    49
    Location:
    Michigan
  3. Uncle Paul

    Uncle Paul Active Member

    Joined:
    Nov 1, 2013
    Messages:
    3,302
    Location:
    Canyon Lake,CA
    Y will be based as heavily as possible on the existing Model 3. They are working on a new wiring system, but probably most of the internal components will be sourced from the 3
     
    • Like x 1
  4. Watts_Up

    Watts_Up Member

    Joined:
    Mar 4, 2019
    Messages:
    854
    Location:
    In a galaxy far, far away
    There was also some ambitious talk of getting rid of the 12 V battery.
     
  5. Uncle Paul

    Uncle Paul Active Member

    Joined:
    Nov 1, 2013
    Messages:
    3,302
    Location:
    Canyon Lake,CA
    Imagine that many of the Model Y upgrades will trickle down into later Model 3 production..
     
  6. Eriamjh1138

    Eriamjh1138 Member

    Joined:
    May 31, 2017
    Messages:
    199
    Location:
    Michigan
    48V? highly unlikely. Everything in a typical EV is either HV or 12V (and then there’s 5V, but I won’t get into that. There is no reason to use 48V anything. That’s for mild-hybrid gasmobiles.

    Elon talked about eliminating the 12V battery. That means that he needs a really good HV-to-12DC converter that can switch from milliamperes to tens of amps without creating too much transient electrical noise.

    A 12V battery is great for that. So are supercapacitors, btw.

    I expect the wiring improvements and hopefully better production efficiency to give the Y a decent profit margin. Tesla needs to be profitable.

    And no fancy new wiper-system, either.
     
  7. SSedan

    SSedan Active Member

    Joined:
    Jul 24, 2017
    Messages:
    1,607
    Location:
    Greenville Wisconsin
    There has been talk of the legacy auto builders going 48volt for decades.

    IMO they(legacy) have to make the jump first to get the parts catalog built, 48volt bulbs, relays, switches, accessory motors etc. Without that first you need to step the voltage down to 12 anyway.
     
  8. ewoodrick

    ewoodrick Active Member

    Joined:
    Apr 13, 2018
    Messages:
    3,658
    Location:
    Buford, GA
    I certainly hope they stay with 12V. Too many things depend on it.
     
  9. Fiddler

    Fiddler Member

    Joined:
    Jun 18, 2014
    Messages:
    83
    Location:
    Bowie, Md
    Instead of individual wires the MY 48V buss will require intelligent nodes that recognize their "name" or "address" on the buss to turn on the 12V device. Once the intelligent node has the ability to switch the device on and off, it can also Pulse Width Modulate, PWM, the 48V power to provide a 12V equivalent to the 12V device from the 48V buss.
    This PWM technique is used on Tesla cars today for LED lamps as evidenced by video that shows the lamps flickering, ie modulating.
     
  10. Blu Angel

    Blu Angel Member

    Joined:
    Oct 7, 2016
    Messages:
    258
    Location:
    Mississauga, ON, Canada
    @Hank42,

    Tesla will revolutionize the electrical harness and wiring in the upcoming Tesla Y model!
    (Not 100 % guaranteed to come to fruition but I bet Tesla trying real hard)

    The orginal 2012 Tesla S has 3000 meters of wiring (3 kilometers)
    The 2017 Tesla 3 has 1500 meters of wiring (1.5 kilometers)
    The new 2020 Tesla Y will only have 100 meters of wiring!

    This equals a 94% reduction of wiring fromthe Tesla 3
    and probably 200 pounds of wiring (my wild guestimate)

    Here's the link to the article from Electrek
    Tesla reveals revolutionary new wiring architecture to help robots build upcoming cars like Model Y - Electrek
     

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