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Is AWD in an electric vehicle also that advantageous?

Discussion in 'Model 3' started by internalaudit, Jun 30, 2017.

  1. internalaudit

    internalaudit Member

    Mar 11, 2016
    Toronto, Ontario, Canada
    Besides the BMW 3 Series (if at all), what other cars in the M3 price range (if not, $10k more) will be offered in AWD?

    Why two-motor hybrid systems are better than those with just one

    Josh D • 10 hours ago
    Another point some might find confusing is that the two motor benefit, basically only applies to HEV, and PHEVs, not pure BEVs. A large single motor does just fine in a higher powered BEV.
    •Reply•Share ›

    Xiaolong Li Josh D • 3 hours ago
    "A large single motor does just fine in a higher powered BEV."

    Not exactly.

    In e-Formula, they either add 2-3 gears for the main motor or like D series or Rimac1 or Nio EP-9, they add a second motor on a 2nd drive axle with different gearing for higher speed and high traction acceleration.

    On many PHEV and HEVs, the 2nd motor is there for e-CVT to allow higher efficiency at higher speed without requiring a much larger battery and bigger main traction motor. In Voltec 1.0, the 2nd motor is just there to modulate the main traction motor as well as providing generator capability.

    •Reply•Share ›

    George Danchev Josh D • 10 hours ago
    Even in BEVs... duel motor (front and rear) is more efficient than a comparable (as power) single motor.... you don't need to transmit torque throughout the whole car, better weight and balance, better AWD, etc. Then four motors scheme has further advantages, ultimate (lighting fast and potent) torque vectoring - efficiency, control, safety, etc... avoiding the single-motor point of failure is also a win :/
  2. JeffK

    JeffK Well-Known Member

    Apr 27, 2016
    AWD is advantageous yes... although both FWD and RWD are more responsive on EV in the first place by the very nature of an electric motor which aides in traction control. AWD is better still but may wear the tires faster.

    It's funny when people say duel motor... generally the motors aren't adversarial...
    • Funny x 2
    • Informative x 1

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