There was a video on this motor recently: https://www.youtube.com/watch?v=r4OdH0ibOBk made by a phd in the field
Tiny electric motor can produce more than 1,000 horsepower
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Re: Tiny electric motor can produce more than 1,000 horsepower
#12Outperformance 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.
Thanks. Do you also happen to know the power density of the motors in the average EV car? Because the article uses "nr of Tesla Model 3" as a unit, which is meaningless without further details about it power density.
Re: Tiny electric motor can produce more than 1,000 horsepower
#13Could 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…
saving 30 kg of weight on a 2000 - 2500 kg car won't lead to "significant efficiency gains"
Re: Tiny electric motor can produce more than 1,000 horsepower
#14EV motors are not that heavy. Ok it is 1/4 of a tesla motor but would that make much of a difference compared to the rest of the car since the weight of an EV motor is in single % of the entire weight. Sounds like it could be more important for drones?
Drone motors are aircooled though, so I think you actually want the radial configuration.
Re: Tiny electric motor can produce more than 1,000 horsepower
#15Could 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 (?)
The issue with this type of motor is that it is part of the unsprung weight since it is inside the wheel. This is probably why savings here matter a lot more (or at least in a very different way) than the battery weight.
Re: Tiny electric motor can produce more than 1,000 horsepower
#16Outperformance 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.
I sort of wonder how well these things can be scaled down.
Wheel hub motors are obviously bad, for harshness reasons, but if you could have a motor like this weighing 1-2 kg, and put one on each wheel, that'd be okay.
Power-wise this would be okay if things are linear. 26 kW per wheel sustained power output is more than enough for a light car. The question is what torque a scaled-down machine can be expected to have.
Re: Tiny electric motor can produce more than 1,000 horsepower
#17Yet Another Sale Abroad. Not a criticism of the YASA team. It’s hard to scale a company in the UK and foreign investment is a good thing in general. But still frustrating that the UK was unable to offer the kind of investment that Mercedes could to keep a company British.
Re: Tiny electric motor can produce more than 1,000 horsepower
#18Everything but the Metric System: “The new YASA axial flux motor weighs just 28 pounds, or about the same as a small dog.” :)
Re: Tiny electric motor can produce more than 1,000 horsepower
#19Could 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…
saving 30 kg of weight on a 2000 - 2500 kg car won't lead to "significant efficiency gains"
Depends on your definition if significance, but I think they do. Every kg of useless weight you do carry, lowers your range. But sure, on its own it is not a magic game changer for heavy electric cars.
For light weight vehicles on the other hand, it might be.
Re: Tiny electric motor can produce more than 1,000 horsepower
#20The new YASA axial flux motor weighs just 28 pounds, or about the same as a small dog.
But how many footballs a small dog weighs?