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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

#511

Post by Qwertious »

klabb3 wrote: post #77
poniko wrote: post #9

Earlier quoted context omitted.

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.

Manufacturers may just keep the battery size and market the improved range instead? Smaller cars in urban and suburban environments have always had lots of benefits, but since many of them are collective in nature, it has largely fallen on tragedy of the commons, and we got larger cars with larger hoods instead.

They might, but so far they don't. Manufacturers are largely switching to LFP (although to be fair they tend to offer a long-range option which ships NMC instead) and the main benefit of LFP is cost. The range of electric cars on the market is largely capped at 500KM/300miles. They could offer more, but they don't.

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

#512

Post by fragmede »

lunias wrote: post #315
ehnto wrote: post #221

Earlier quoted context omitted.

I agree with you however I believe weight and safety are in a complex relationship right now, which has nothing to do with performance and handling. Unfortunately I feel much less safe in a Fiat 500 when a significant portion of cars in the road weigh nearly 3 tonnes and perhaps can't even see me. I suspect most people are in SUVs because they're the pragmatic trade off between safety and convenience, not because the…

Yup, it's an arms race to see who can buy the biggest vehicle so that they can see over the second biggest vehicle and survive a collision with it. But small cars are only unsafe because of that discrepancy between the largest and smallest cars, and it's not just weight, but height difference. It's possible to survive crashes at very extreme speeds in very light cars if they are designed to work that way (see: F1 cra…

With shortages in housing, why would culture change to support smaller cars when bigger cars are better for living out of vs living out of a small car is just the worst.

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

#513

Post by lunias »

loeg wrote: post #484
lunias wrote: post #198

Earlier quoted context omitted.

I wish more people on the road realized the extent to which weight reduction improves all aspects of the driving experience... it really does compound unlike any other change that you can make to a vehicle. IMO heavy vehicles are a scam and the antithesis of the direction we should be moving.

It's ~all battery weight, though. This doesn't really move the needle.

Curious what you mean? Surely more weight moves the weight needle?

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

#514

Post by ryao »

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…

There is no statement about the efficiency of the motor itself. If the energy conversion efficiency is low, then the weight savings will not matter and the car will have even less range.

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

#515

Post by narrator »

Aurornis wrote: post #251
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…

> 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. EV motors are already lightweight. The electric motor in a vehicle like a Tesla Model 3 already weighs less than you do. Reducing that one component by 75% would be a weight savings equivalent to about a half of a passenger. Not a significant effic…

Maybe this would be good for a personal quadcopter, however the batteries weight would probably make the motor weight savings unimportant.

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

#516

Post by fragmede »

JKCalhoun wrote: post #199
varispeed wrote: post #115

Earlier quoted context omitted.

If engine can be produced cheaply, can it be limited "in software"? It's like saying people shouldn't use Rasberry Pi to blink an LED.

Yeah, you kind of shouldn't use a Raspberry Pi to blink an LED, though. Great "Hello World" project. But there are so many ways that are cheaper, lighter, smaller and more reliable (and don't require a lengthy boot-up).

Ah not to worry we can make it a web service and host it on the cloud and of course you wouldn't want to run without a authentication so you'd need that and also a database and what if you want to blink the led securely so you'll need to use a homorphic database which is very computationally expensive so just need a couple of VMs and anyway you should start with https://www.npmjs.com/package/blinking and go from there.

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

#517

Post by rounce »

icedrift wrote: post #445
bootlooped wrote: post #430

Earlier quoted context omitted.

> The law needs to catch up. There are clearly good reasons for people to want extremely powerful e-bikes and they should be allowed to. I'm not so sure about that. I don't want a 6000kw Sur Ron riding in the bike lane with me. The whole point of the bike lane was to make a safe space for riding a bicycle. I want the bike lanes to be safe enough for children to ride their bikes in, and having something that powerful…

I think what they mean is these e-bikes pushing 60mph should be legal but reclassified as something closer to a motorcycle. The problem with keeping them illegal is people tend to treat them like bikes when they should be on the road.

This is already handled in the licensing in the UK and Europe it’s an A1 motorcycle license if it’s below 11kW, A2 up to 35kW, and everything over is the full-fat A license.

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

#518

Post by fragmede »

acac10 wrote: post #240
binary132 wrote: post #196

Earlier quoted context omitted.

Yeah, my first thought was racing EUC’s, lol….

End User Credentials ? Everyone Uses Cars ? Engineered Universal Conscience? (Since you seem to assume we all share your thoughts & context...)

Electric UniCycles

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

#519

Post by UncleOxidant »

mrguyorama wrote: post #318
Lio wrote: post #267

Earlier quoted context omitted.

Not a game changer but I wonder if ligher motors allow you to do things like have one motor per drive wheel, removing the need for differential gearboxes? Then you can do clever things with traction control without having to use the ABS system to brake the drive wheels. Or dramatically change the turning circle on big cars and vans. Maybe even reduce the size and weight of the braking system by taking on some of that…

Putting the motors in the wheel is bad for a separate reason: Unsprung weight. Every ounce you have in the hubs that don't float on the suspension reduces certain suspension attributes. You end up with a crappier ride and poor performance.

But these are 28lbs which isn't a lot to have in the wheel. Considering that this is the 1000 HP version you definitely don't need 1000HP in each wheel, but maybe they could come up with an even lighter 100 to 200HP version?

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

#520

Post by ImPostingOnHN »

fragmede wrote: post #510
duskwuff wrote: post #324

Earlier quoted context omitted.

If the motors are light enough, though, that might be acceptable... especially if they can make an even smaller version for that application. (You probably don't need 750 kW on each wheel - even for a supercar that'd be excessive.)

fwiw four of those electric motors is approximately 4,000 hp. You won't get better 0-60 times with that though, at that point, you're limited by the tires' physical limitations. So at best you could get down to a ~2.2 second 0-60 mph time with regular tires, and then after that, you'd need race sticky tires in order to go faster. Unless you used the motors to power fans instead, then you could use that for downforce…

Yeah, the potential here reminded me of the McMurtry Spéirling, which uses fans for active downforce, and gets 0-60 in 1.4 seconds. Top Gear Video link: https://www.youtube.com/watch?v=HPZxcfglU2Q
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