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Electric scooter motor reversible?

Discussion in 'Electronic Design' started by John Doe, Jun 11, 2010.

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  1. John Doe

    John Doe Guest

  2. It looks like a simple brushed DC motor:


    This kind of a motor will go backwards but maybe not very well. A high
    efficiency motor has the brushes aligned to compensate for field
    distortion at operating speed.

    http://en.wikipedia.org/wiki/Brushed_DC_electric_motor
     
  3. TTman

    TTman Guest

    They are BLDC motors and controllers- 3 phase, essentially. Swapping any 2
    of the 3 wires will reverse the motor. DON'T reverse the battery , it will
    all go bang!!! You'd never get the wattage from that size stepper...
    I'd suggest that particular motor is internally geared....
     
  4. John Doe

    John Doe Guest

    Only two wires go to the motor.
    The motor is the 750 W version of this 500 W motor.
    http://www.alibaba.com/product-gs/258896362/DC_Brush_Motor_XYD_6B.html

    Will it run as efficiently in reverse, by simply switching the
    wires? Someone else is suggesting that the brushes might be
    aligned better for forward motion. I need to do some metal work
    that depends on whether the motor can run in reverse exactly the
    same as forward.

    Thanks.
     
  5. TTman

    TTman Guest

    There are no brushes LOL... BLDC = B rush L ess DC motor.
    They run in either direction with no reduction in power.
     
  6. PeterD

    PeterD Guest

    That is a chinese POS motor that is *rated* at 336 watts max. It is
    chinese, and therefor you must derate it by a factor of about 75%. If
    you are using a chinese motor, no one here can tell you what will
    happen if you reverse the voltage to it.
    It is unlikely that that motor has any optimization...
     
  7. John Doe

    John Doe Guest

    Yes I know, but that is not the subject. If you have a better
    motor (same size and mounting) that will live up to your
    standards, please feel free to send it to me.
    Why is that?
    --
     
  8. John Doe

    John Doe Guest

    Are/were you drunk?

    I gave you a direct link (right there, above this) to a brief
    description of the product on the distributor's website. It says
    "brush". Even the link says "DC_Brush_Motor".
    --
     
  9. TTman

    TTman Guest

    Will it run as efficiently in reverse, by simply switching the
    Looks like it... my bad :(
     
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