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What is it like to drive a car with two motors?

Discussion in 'Model X' started by Discoducky, Nov 25, 2013.

  1. Discoducky

    Discoducky Active Member

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    Anyone have experience? Bonus points for video.

    Not terribly interested in one motor driving all wheels as the dual motor with possibly different size motors, inverters and gear ratios scenario like the X.

    After playing a ton of Forza 5 the past weekend, I cannot wait to drive the X! C'mon drive event!
     
  2. palmer_md

    palmer_md Member

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    #2 palmer_md, Nov 25, 2013
    Last edited by a moderator: Mar 13, 2016
  3. manitou820

    manitou820 Member

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    The Lexus RX450h Hybrid uses the gas/electric combo to drive the front wheels. The AWD version adds a small electric motor to drive the rear wheels. Not quite the same as the Model X but probably as close as you'll get out of the current production lineup.
     
  4. lolachampcar

    lolachampcar Active Member

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    My bud and I have been beating around the idea of doing a four motor brushless controller using one of these PPC embedded processors used for modern fuel controls. The ETPU could be used for very fast motor control while other on board hardware could be used to memory map gyros, magnetometers, accelerometers and the like. I remember F1 starting to play with electronic diffs and differential braking with good results. I can just imagine what four independent motors could do with very high speed updating of forward and reverse torque :)
     
  5. palmer_md

    palmer_md Member

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    #5 palmer_md, Nov 25, 2013
    Last edited by a moderator: Mar 13, 2016
    lola, you might enjoy this review of a similarly built car. 4 motors with torque vectoring.

     
  6. bonnie

    bonnie Oil is for sissies.

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    I used to operate a LeTourneau 20-ton front end loader with four electric wheel motors (and regen!) ... does that count? No speed, but lots of fun :).
     
  7. Raffy.Roma

    Raffy.Roma Active Member

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    Actually the Mercedes SLS Electric Drive has four engines, one engine on each wheel. But IMO also in the case of the Model X AWD (two engines) you could have torque vectoring, meaning to have instantaneously the torque available on each wheel (or the brakes of course) as wished by the ESC.
    Maybe somebody knows more on this matter and how the AWD works for Tesla?
     
  8. lolachampcar

    lolachampcar Active Member

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    Thanks Palmer
    That was awesome.
     
  9. AudubonB

    AudubonB Mild-mannered Moderator Lord Vetinari*

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    My Pisten Bully has two hydraulic engines for each side, with actuators. Power for the hydraulics comes initially from a Merc diesel. - I am going to bet that even Bonnie's loader could outrace it, but NOTHING can go up, or down, a steep mountainside with as much ease.

    When covered with snow.
     
  10. bonnie

    bonnie Oil is for sissies.

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    But I could flatten that steep mountainside in a heartbeat. Just sayin'.
     
  11. AudubonB

    AudubonB Mild-mannered Moderator Lord Vetinari*

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    But I could push the snow back up to re-create the mountain.... ;)
     

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