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Thread: Mahle's magnet-less drive motor design

              
   
   
  1. #1
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    Mahle's magnet-less drive motor design

    This looks interesting. I bet there are a number of motor designers looking at designs that don't need magnets, which use materials that mostly come from China:
    https://www.youtube.com/watch?v=yY6TuVUxYQw
    Richard - Current bikes: 2018 16.6 kWh Zero S, 2016 BMW R1200RS, 2011 Royal Enfield 500, 2009 BMW F650GS, 2005 Triumph T-100 Bonneville, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

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    Senior Member Stevo's Avatar
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    Are there any weight savings by using copper windings vs magnets? Copper behaves similar to magnets when you pass them through a magnetic field, so I'm not sure of any advantages to using copper coils over magnets https://youtu.be/sENgdSF8ppA
    As seen in this youtube video, when a coil is disconnected or LED placed in the circuit, the magnet passes through the copper winding easily. There may be an advantage there afterall.
    The fact that permanent magnets have a built in "potential energy" is what makes electric
    motors so much more efficient then ICE, along with fewer moving parts and less friction. The potential energy of
    gasoline is what makes ICE so hard to beat.
    Last edited by Stevo; 23 June 2021 at 1100.
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    Senior Member Stevo's Avatar
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    Here's a little bit about Tesla's plaid motor: https://youtu.be/HtTm_XOHd7w
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