Featured Awesome axial flux motor

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by bwilson4web, May 20, 2026.

  1. ChapmanF

    ChapmanF Senior Member

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    Note that you here have fully entered straw-man territory, as there wasn't anybody in the thread who ever claimed the percentage reduction in loss equated to a numerically identical percentage increase in range or reduction in pollution. I was addressing only the reduction in power wasted as heat in that component, and that's what I wrote.

    And you know what? You know, if you ever had achieved 99.999995% and then managed to improve that to 99.999996%, you really would have reduced your power going to heat by 20% again, and you really would be able to shrink your (by then quite small) cooling capacity by 20% again, and among the kinds of possible refinements of your machine you might be evaluating at that point, that still would be pretty cool.
     
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  2. bwilson4web

    bwilson4web BMW i3 and Model 3

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    I just think the volume and weight reduction of the magnetic path material is significant along with reducing rare earth materials. My mind sees this as an induction motor in ‘pancake’ form saving total mass with what should be less expensive material, fewer parts, and higher power density.

    I was impressed with what the high school kid did. Sure, a science fair project … barely one horsepower but a start in the a better direction. But my dream is aviation.

    The axial format can more easily fit in a wing. Then use two 90 degree shafts to reduce prop RPM and counter rotating props per motor shaft, even the prop efficiency goes up by removing wasted axial air rotation. By default, blown wing, propeller air and you’ve got a STOL that flies like scat. Perfect for a Ukrainian combat drone (or Bob’s air scooter!)

    Bob Wilson
     
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  3. Isaac Zachary

    Isaac Zachary Senior Member

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    Every little bit helps. So yes, making the motor a little smaller would help. The pancake isn't necessarily more efficient, but if it is, every little bit helps there too.

    But it's still important to realize how small these improvements can be compared to what could be reduced. But I guess as long as people are fixated on buying ginormous SUVs, then making the motor a little smaller and making little $50 radiators now $49 radiators because you reduced the heat output by 20%. And saving a few dollars a year on electricity is better than nothing too. I'm not sure it justifies the R&D expense and ultimate car cost, but maybe it will someday.

    To me, it still makes way more sense to reduce these things by much higher factors. Just get rid of the permanent magnets altogether. They aren't necessary for high efficiency. You can do that with an iron rotor reluctance motor Make it an axial reluctance motor if you wish.
     
  4. bwilson4web

    bwilson4web BMW i3 and Model 3

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    I've already reduced the mass and aerodynamic drag using performance wheels, pizza cover hub caps, and lighter weight, long lasting tires. I have some other ideas for my 180,000 mile, 7 year old, car.

    Bob Wilson
     
  5. fuzzy1

    fuzzy1 Senior Member

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    Google AI tells that the YASA axial flux motor is a synchronous motor, not an induction motor. Is it hallucinating?

    I was thinking that induction motors need an electric current path in the rotor, but I'm noticing only a magnetic flux path on this one.
    Many large improvements have been achieved by stacking a series of small improvements atop each other. A percent here, a fraction of a percent there, repeated in dozens of difference places.