Magnet-Free Electric Motors: How Do They Really Work?

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Magnetless motors are a new type of electric motors that do not rely on permanent magnets to generate torque. Some of the leading companies in this field are MAHLE and ZF Friedrichshafen, both based in Germany. They have developed innovative magnet-free electric motors for various applications, from passenger cars to commercial vehicles.
So, how do these motors work? Why are they important for the future of mobility, and why should you care about them?
#ElectricMotor #Magnet #ZF #Friedrichshafen #Mahle
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Опубликовано:

1 ноя 2023

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Комментарии : 15

@teardowndan5364 7 месяцев назад

Induction, reluctance and series/parallel/external excitation electric motors have been around for decades. You likely have a dozen of those in your home in your HVAC system, kitchen appliances, washer, drier, etc. The only thing sort-of-new here is using induction to feed the rotor winding instead of slip rings. Generators at power stations have used small inside-out alternators to feed the rotor winding for decades too, which is fundamentally the same thing albeit with a bit more drag.

@EinzigfreierName 7 месяцев назад

That's true but removing the slip rings is mostly what this innovations is all about.

@kevinburke6743 8 месяцев назад

Do they work as well(efficiently) when configured as Axial Flux type?

@jlo13800 6 месяцев назад

Yes, you can also makes an axial induction motor if you want to or a wound rotor synchronous motors, uses steel and carbon fiber windings.

@lunatik9696 8 месяцев назад

Inductive motors are NOT more efficient than permanent magnet motors. They require power to sxcite the field windings. Tesla switched from inductive to PM motors to gain 3-5% efficiency.

@EinzigfreierName 7 месяцев назад

Tesla used a classical asynchronous induction motor. This is something different.

@andangsudradjat7379 6 месяцев назад

so with this technology and Toyota new battery technology, in the future, will the ev cars price tag drop ?

@user-fz3dh2nm3s 7 месяцев назад

What are the cons on this motor?

@EinzigfreierName 7 месяцев назад

To me it looks like the biggest con is that you have additional electronics inside of the motor. So when there is a defect in this electronics, the whole motor needs to be removed and disassembled to repair it.

@platinvm_ 3 месяца назад

Probably the absence of the regenerative function of a "normal" electric motor

@kevinburke6743 6 месяцев назад

LUNATIC 2 comments below mine would beg to differ. If he is correct in reporting tesla's supposed action, which I don't doubt! Then efficient, weight, size & longevity are Trumps!