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Harbinger EV

Discussion in 'Electric Vehicles' started by JRP3, Mar 3, 2010.

  1. JRP3

    JRP3 Hyperactive Member

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  2. vfx

    vfx Well-Known Member

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    Harbinger?

    Really?

    More like 2nd team.

    Only a few thousand less than an 08 Roadster.
     
  3. CroDriver

    CroDriver Member

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    Soliton controller, Elithon BMS and Warp DC motor... And that's a $100k EV?! lol
     
  4. JRP3

    JRP3 Hyperactive Member

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    Well you could look at it this way. The Soliton has the potential for much more power than the Tesla, the vehicle is much more rare than a Tesla, it could hit a higher top speed than the Tesla, and it might have more off the line torque than the Tesla, might even beat it in 0-30 times.
     
  5. vfx

    vfx Well-Known Member

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    Too bad it's ugly.:frown:
     
  6. CroDriver

    CroDriver Member

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    #6 CroDriver, Mar 18, 2010
    Last edited: Jul 10, 2012
    I wouldn't agree on the power statement.

    The Soliton is designed for 90 LiFePO4 cells in series. That's 288V.

    If the controller is pulling the max current of 1000 Amp the most cells will sag below 2,5V/cell.

    2,5 * 90 = 225 V

    225 V * 1000 Amp = 225 kW

    The Warp motor is not designed for such loads and can take them for a very short period of time. At such overloads the motor is only 65%-75% effective.

    225 * 0,7 = 175 kW effective power.

    Besides that, the motor power will drop above 5.000 RPM and will overheat below 2.000 RPM.

    DC motors are not the best option for a EV.
     
  7. JRP3

    JRP3 Hyperactive Member

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    Actually the Soliton has a 342 volt maximum and can be set for 1400 amps for short bursts. Series DC motors still have the edge for low end torque.
    Until you build an EV that can beat a Tesla in all aspects, and have the results to prove it, talk is cheap :wink:
     
  8. CroDriver

    CroDriver Member

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    One of the Soliton designers told me that 90 cells should be the upper limit

    Working on it :wink:
     
  9. JRP3

    JRP3 Hyperactive Member

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    They may have been thinking of charging to 4 volts and a residual charge or something. 90 cells with a fresh off the charger 3.6 volts would still be fine at 324 volts and would drop quickly after a short period.

    I know, just pushing a little :biggrin:
     

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