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Tiny electric motor can produce more than 1,000 horsepower

supercarblondie.com

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Re: Tiny electric motor can produce more than 1,000 horsepower

#3

Post by defrost »

chris_overseas wrote: post #2

A link to the press release https://yasa.com/news/yasa-smashes-own-unofficial-power-dens...

A much better link .. and probably not to late to change it via [edit] on submission in your view..

The YASA link is primary, links to test data and back story, and has more detail substance and authority.

Re: Tiny electric motor can produce more than 1,000 horsepower

#5

Post by [deleted] »

defrost wrote: post #3
chris_overseas wrote: post #2

A link to the press release https://yasa.com/news/yasa-smashes-own-unofficial-power-dens...

A much better link .. and probably not to late to change it via [edit] on submission in your view.. The YASA link is primary, links to test data and back story, and has more detail substance and authority.

[deleted]

Re: Tiny electric motor can produce more than 1,000 horsepower

#6

Post by davedx »

Could lead to significant efficiency gains for EV's, because 1/4 of the motor weight means better power-to-weight ratio... a lot of things will automatically get better.

YASA was founded in 2009, a spin out from Oxford University following the PhD of founder and still CTO, Dr Tim Woolmer.

"Over the decades that followed both of these technologies were explored. But despite the potential for weight reduction, smaller size, shorter axle length and increased torque, it was the difficulty in manufacturing the axial flux technology that limited its commercial viability, because the motor could not be made by stacking laminations, as with radial machines."

"The breakthrough innovation came by segmenting the axial flux motor in discrete "pole-pieces", so the motor could be manufactured using Soft Magnetic Composite material.

SMC can be pressed at low cost into a wide variety of 3D shapes. This removed the need for the complex laminations, overcoming the major manufacturing challenge of the axial flux machine."

"In 2025, after a £12m investment, YASA opened the UK's first axial-flux super factory, in Oxfordshire.

The opening of this facility boosts YASA’s manufacturing capacity, setting new benchmarks in e-motor technology and quality, and enabling production to scale beyond 25,000 units per year."

This is awesome. Lighter motors also make electric flight more viable

Re: Tiny electric motor can produce more than 1,000 horsepower

#7

Post by amelius »

davedx wrote: post #6

Could lead to significant efficiency gains for EV's, because 1/4 of the motor weight means better power-to-weight ratio... a lot of things will automatically get better. YASA was founded in 2009, a spin out from Oxford University following the PhD of founder and still CTO, Dr Tim Woolmer. "Over the decades that followed both of these technologies were explored. But despite the potential for weight reduction, smaller…

But EVs are already heavy because of the battery. I suppose percentage-wise the motors don't make much of a difference (?)

Re: Tiny electric motor can produce more than 1,000 horsepower

#8

Post by FabHK »

Outperformance metric is basically power density. The model described is some 13 kg and delivers 750 kW peak, 350+ kW sustained.

(That's 28 pounds, 1000 hp peak, 470+ hp sustained.)

The 40% improvement is actually 36% and is versus the previous model of the same company.

Re: Tiny electric motor can produce more than 1,000 horsepower

#9

Post by poniko »

amelius wrote: post #7
davedx wrote: post #6

Could lead to significant efficiency gains for EV's, because 1/4 of the motor weight means better power-to-weight ratio... a lot of things will automatically get better. YASA was founded in 2009, a spin out from Oxford University following the PhD of founder and still CTO, Dr Tim Woolmer. "Over the decades that followed both of these technologies were explored. But despite the potential for weight reduction, smaller…

But EVs are already heavy because of the battery. I suppose percentage-wise the motors don't make much of a difference (?)

Yea that's the thing right, the battery is so very much of the weight that optimizing the other parts are "meh" at this point. What is cool is that the 600Wh/kg solid state batteries seems like they are really finally here soon :) i.e removing 200-300kg from a car in one go will be a game changer.
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