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Elon, show us the Q - quad-motor AWD

Discussion in 'Model S' started by PokerBroker, Oct 13, 2014.

  1. PokerBroker

    PokerBroker Member

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    Tesla successfully tackled the Dual motor AWD system. Any bets that they have a quad-motor prototype hiding somewhere in R&D?? Could four-wheel torque vectoring provide even MORE efficiency? Rimac's technology surely has gotten Tesla's attention. Maybe not for the Model S but perhaps for the next Roadster?
     
  2. mitch672

    mitch672 Active Member

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    hey, you need to leave them something to announce in 2016 for the Model S V3, so everyone trading up to the "D" can trade-in again. Did apple go directly from the original iphone to the iphone 6 plus? hardly...
     
  3. Raffy.Roma

    Raffy.Roma Active Member

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    Don't think so. IMO in Tesla they have already achieved a very efficient AWD System also performing torque vectoring and they don't even think to add two more motors. It would mean a much more expansive car having no improvement with respect to the standard Tesla AWD System.
     
  4. jerjozwik

    jerjozwik Member

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    i lolz.
     
  5. Johan

    Johan Took a TSLA bear test. Came back negative.

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    Fear not, the Model Hex has already been dreamed up on this forum... (6 motors).
     
  6. yobigd20

    yobigd20 Well-Known Member

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    #6 yobigd20, Oct 13, 2014
    Last edited by a moderator: Mar 13, 2016
    Mercedes already did the quad torque vectoring in their SLS EV.

     
  7. ItsNotAboutTheMoney

    ItsNotAboutTheMoney Active Member

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    No. Or at least not until Tesla can afford to fritter money away on things with little benefit.

    The 4WD was necessary.
     
  8. ggr

    ggr Roadster R80 537, SigS P85 29

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    I think people either missed it or misunderstood it. You don't need four motors to get torque vectoring. Because of the Open Differential design, applying the brake to one side causes the torque to move to the other side almost magically and with very little loss of total torque, and this is why they went to the electromechanical brakes instead of vacuum assisted; this gives you free vectoring.
     
  9. wallet.dat

    wallet.dat Member

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    As a two-motor setup is more efficient than a single, a quad-motor setup might be even more efficient still. Four motors means the the rotors can be made smaller in diameter. Smaller diameter means they can be mounted lower, which lowers the COG even further, not to mention diminishing the need for a mechanical differential. While I agree this is probably not necessary on a sedan platform such as the S, I can imagine such a setup might have a purpose in a more sporting chassis -- Next gen Roadster maybe?
     
  10. Johan

    Johan Took a TSLA bear test. Came back negative.

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    Agreed! I remember us having this discussion a while back and we ended up with this conclusion.
     
  11. tom66

    tom66 Member

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    As does the Rimac Concept One.

    "Dear Santa..."
     

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