Maker website: yasa.com/…/yasa-smashes-own-unofficial-power-dens…
How much torque though? HP is nice but power is in the torque as much if not more than the voltage(HP)
28-pound electric motor delivers 1000 horsepower
Submitted 4 months ago by kalkulat@lemmy.world to technology@lemmy.world
https://supercarblondie.com/electric-motor-yasa-more-powerful-tesla-mercedes/
Comments
Sam_Bass@lemmy.world 4 months ago
kalkulat@lemmy.world 4 months ago
Electrics produce maximum torque at 0 rpm …
Zink@programming.dev 4 months ago
The voltage/hp comparison there doesn’t really fit.
Power is in watts or horsepower. You multiply the torque with the RPM and a scaling factor to get power.
A higher voltage system could probably be expected to produce more torque and power from the same size motor, but a lot depends on the design of the motor.
Then to answer “how much torque though,” I haven’t looked into it but electric motors have a very nice torque curve across the RPM range. If a motor made all that power with low torque, then it must spin at super high RPM and need to be geared down.
Sam_Bass@lemmy.world 4 months ago
That motor doesn’t look like it has enough mass to properly make enough torque to drive the weight of a car even if said car it made entirely of carbon fiber
finitebanjo@lemmy.world 4 months ago
Anybody know a good place to buy cheap motors at various sizes?
Dagrothus@reddthat.com 4 months ago
China
finitebanjo@lemmy.world 4 months ago
It’s a lost cause, then.
comrade19@lemmy.world 4 months ago
300-400kW continuously should be the headline. Thats impressive. Lots of motors can try and make 1000hp if you feed them enough voltage but only for a split second before they overheat and burn out. I wonder how long it can do this 1000HP.
CookieOfFortune@lemmy.world 4 months ago
The previous version is already in the Temerario. This is more of an evolution of an existing design.
SlartyBartFast@sh.itjust.works 4 months ago
We StRaPpEd MaGnEtS tO rEcLaIm EnErGy!!!w
the_crotch@sh.itjust.works 4 months ago
Downvoted for alternating case
chronicledmonocle@lemmy.world 4 months ago
Until someone tests it independently, this should be considered BS.
boonhet@sopuli.xyz 4 months ago
I’ll give them some credence based on the cars their motors are already used in and the fact that their parent company is Mercedes-Benz. Doesn’t look like they’re a bunch of grifters seeking investment.
chronicledmonocle@lemmy.world 4 months ago
I suppose, but I’m skeptical of car manufacturer claims, too, until independent testing is done.
I hope this is real and think it’s awesome, but will wait to see if they exaggerated.
Honytawk@feddit.nl 4 months ago
The size is less of an issue than the power usage.
Does it also use 1000% more power to get that strength?
The only real benefit in that case would be robot mech suits.
YiddishMcSquidish@lemmy.today 4 months ago
Weight will help with efficiency. If you got to tow around less weight, you can go for longer.
Malfeasant@lemmy.world 4 months ago
The weight of the motor is insignificant compared to that of the batteries.
boonhet@sopuli.xyz 4 months ago
I’m assuming the efficiency is similar to other electric motors. Maybe not the best, but likely acceptable. If it’s not, the product is DOA.
If my assumption holds true, it would allow for lighter cars and better packaging by making even more room for the battery near the bottom of the car since these engines are so small, you could easily just use one per driven wheel and forget about differentials and such. And hybrids that put the motor in a ZF 8HP transmission could have wayyyyy more power available from the electric bit, as space is sorta constrained there.
I think trains could also benefit from a weight loss IF these are durable enough. They have multiple motors usually.
Weight is important in vehicles not just because of energy efficiency, but because the more sprung mass you have, the more work the suspension needs to do. And unsprung mass is even worse, so ideally your motors are sprung mass. Currently weight is still a bit of an issue for EVs due to the batteries, but if they can make up for it a bit by having super light weight motors, the difference between EV weight and ICE weight becomes smaller. Weight is also super important to road wear, I think it is by 4th power. So 20% heavier means twice as much wear already.
blackn1ght@feddit.uk 4 months ago
28 pounds = 12.7kg, for those wondering.
KneeTitts@lemmy.world 4 months ago
How much is it in baby elephants?
Gonzako@lemmy.world 4 months ago
Roughly a tenth of a baby elephant, or around two round trips of your neurons on a single line reaching the moon
Exec@pawb.social 4 months ago
So when are we going to see these in trains?
ironhydroxide@sh.itjust.works 4 months ago
Trains don’t benefit much from lesser weight.
Drones, and planes are the most likely to benefit from this.
Snowpix@lemmy.ca 4 months ago
Quite the opposite, you want the locomotive to be as heavy as possible without exceeding axle or track load limits. The heavier it is, the more weight it can pull before slipping the wheels.
cows_are_underrated@feddit.org 4 months ago
Assuming that flying with an electric motor is a viable option (I have zero clue, but from what I heard currently its not that realistic that we will get electric planes)
BilSabab@lemmy.world 4 months ago
cant wait for corporations to crush the competition with some bullshit yet again and then complain that we’re at peak EV tech anyway
MonkderVierte@lemmy.zip 4 months ago
Everything but metric.
Venator@lemmy.nz 4 months ago
Did they update the page since you commented? I see kw and kg on there… 🤷
_stranger_@lemmy.world 4 months ago
They’re based in the UK, they have no excuse.
ParadoxSeahorse@lemmy.world 4 months ago
Likely just the article
Psythik@lemmy.world 4 months ago
“YASA” sounds like a mashup between YMCA and NASA. Even their logo looks like the Y’s.
BilSabab@lemmy.world 4 months ago
YMCA NASA colab would’ve been lit though
rekabis@lemmy.ca 4 months ago
This looks small enough to be installed within the wheel hub itself. Imagine a car with four motors, one inside each wheel. The entire floor pan could just be one thin battery, and everything above it could be passenger and storage space.
brucethemoose@lemmy.world 4 months ago
PS
One issue I hadn’t thought of is putting traditional brakes (which generate a ton of heat) right next to the motors. Again, we’re just asking for mechanical issues here, and we’re ballooning unsprung mass to mitigate it, especially in heavier cars that take a lot to stop.
The entire floor pan could just be one thin battery, and everything above it could be passenger and storage space.
This seems like a minor thing, but the control electronics for the motors takes up a nontrivial amount of space. So do “traditional” subsystems like hydraulics, climate control, or an old fashioned car battery (which often exists in parallel to the EV drivetrain).
Theres also safety to consider. A traditional sedan “hood,” even a small one, is easier on standing pedestrians, so it hits their legs and they flop on top, instead of slamming them like a wall (as a bus/truck front would).
Resonosity@lemmy.dbzer0.com 4 months ago
Aptera wanted to do this with their flagship Solar Electric Vehicle (SEV).
IIRC, they switched to an outwheel motor because of the weight the inwheel motors added to the wheels. Could be wrong tho
SaveTheTuaHawk@lemmy.ca 4 months ago
Aptera
LOL. Coming soon…since 2009
brucethemoose@lemmy.world 4 months ago
That’s how EVs started! Sorta.
But it’s impractical.
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It increases unsprung weight, e.g. weight not cushioned by suspension. Bad for ride/handling/steering feel.
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All that vibration is HARD on the motor. Read: unreliable.
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Motor is more exposed to temperature/dust. Again, reliability.
In reality, a decent suspension needs a lot of room under the body anyway. An axle to get the motor in the body is dirt cheap on the rear, and still pretty cheap on the front, and you could just mount this thing sideways to make it flat…
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Canopyflyer@lemmy.world 4 months ago
That would be a lot of unsprung weight.
Handling and ride quality are dramatically and negatively impacted by every bit of weight that is not held up by the suspension. That’s why higher performance cars will have lightweight wheels. Rather than steel wheels you see on lower performance cars.
It’s better to just put all the heavy drive components inboard on the chassis and run drive shafts to the wheels.
You see motors in the hubs of bicycles, because they really don’t go that fast. So even if the bike has a suspension, it’s not that big of a deal. Motorcycles on the other hand would need to keep any heavy parts inboard.
boonhet@sopuli.xyz 4 months ago
Steel wheels haven’t been common on anything but really cheap cars for a few decades now, but in general your point holds true. There’s heavier and lighter alloy wheels out there.
Still, these could be just tiny motors connected to the wheels via a short shaft on the rear especially. Instead of the huge monstrosities most EVs currently seem to use which are huge, as they also include gearing and such. Still leaves more space for battery without having to go unsprung with hub motors.
lemming741@lemmy.world 4 months ago
Hub motors are a party trick. They will never reach mass market.
boonhet@sopuli.xyz 4 months ago
They might work in the rear if used instead of rear brakes. Rears do far less work anyway and brakes are heavy. Powerful electric motors can do a lot of regen, similarly assisting the front brakes.
avidamoeba@lemmy.ca 4 months ago
They work well on bikes. I could appreciate 1000bhp hub on my 12kg touring bike. 🤭
SaveTheTuaHawk@lemmy.ca 4 months ago
Renault 5 RS Turbo has hub motors, Nostradamus.
EtzBetz@feddit.org 4 months ago
German company DeepDrive has some kinda promising tech. And the ID.Polo seems to be said to have hub motors.
kylian0087@lemmy.dbzer0.com 4 months ago
Imagine on a motorcycle… Probably nonstop wheely 🤣
vithigar@lemmy.ca 4 months ago
This is already pretty close to how many EVs are designed.
Nastybutler@lemmy.world 4 months ago
Except for the fact that that much power would need massive batteries. So your thin small battery would be dead the first time you mashed the peddle to the floor
IAmNorRealTakeYourMeds@lemmy.world 4 months ago
forgot the part where they were excited to put the batteries on the tire
rainy@lemmynsfw.com 4 months ago
If we put electrified tracks down we could all drive ridiculously overpowered tiny traincars.
MonkderVierte@lemmy.zip 4 months ago
Make them stone tracks, because steel is too expensive, then make the wheels of gum, because steel wheels have too less friction. Then you have a street and a car.
Birch@sh.itjust.works 4 months ago
Maybe we can also have them drive themselves and link them up for more efficiency also have them as a service so not everyone has to own their own and we can reduce overhead on servicing and infrastructure and … trains.
rainy@lemmynsfw.com 4 months ago
but then u cant splatter pedestrians and cyclists on the pavement like overmicrowaved hotpockets or ram the car in front of u for not going fast enough or brake check the one behind you for being to close or…
Naz@sh.itjust.works 4 months ago
My eScooter weighs 42 pounds.
A 28 pound motor that’s 750 kW?
Holy fuck.
That’s power density straight out of science fiction
SaveTheTuaHawk@lemmy.ca 4 months ago
It only does that at peak for a few seconds, practically, about a third that power.
Jimmycakes@lemmy.world 4 months ago
Ebike would probably fold in half from the torque lol
HugeNerd@lemmy.ca 4 months ago
Ah they’re rating motors like they used to rate speakers?
cman6@lemmy.world 4 months ago
Ah happy days. I’ve not heard PMPO in so long!
drosophila@lemmy.blahaj.zone 4 months ago
Car engines, for probably the past 100 years, have always been advertised based on their peak power rating, not what they can produce continuously. Cars are not designed to have their accelerator peddles floored for hours on end, nor is this even possible to do, as you’d eventually hit a curve and need to slow down.
This is especially the case for high performance vehicles, which usually have more demanding maintenance requirements just from normal operation, let alone from being abused like that.
solrize@lemmy.ml 4 months ago
1000 hp = 0.75 MW. If 98% efficient that’s 15KW of heat dissipation Sounds like a subsystem bigger than the motor.
pokexpert30@jlai.lu 4 months ago
I mean an ICE output more heat than power. So a 150kW ice engine requires like, 200kW heat dissipation ?
kalkulat@lemmy.world 4 months ago
Yep, I noticed that, you’re right. And that’s near-miraculous efficiency. The maker’s website sez: “YASA also estimates that its all-important continuous power will be in the region of 350kW-400kW (469bhp-536bhp).” It also sez: "To achieve a 750kW short-term peak rating and a density of 59kW/kg … " Devi’ls in the details … The image on the ‘superblondie’ page shows A LOT of cooling built into whatever metal that is: supercarblondie.com/…/YASA-tiny-electric-motor.we…
SaveTheTuaHawk@lemmy.ca 4 months ago
EV motors are already over 90% efficient. They don’t piss away evergy as heat like ICE, where about 40% of the gas is wasted as heat and noise.
SatansMaggotyCumFart@piefed.world 4 months ago
Once I figured out it was an axial flux prototype motor this whole article made sense.
Glitch@lemmy.dbzer0.com 4 months ago
Nerd
M0oP0o@mander.xyz 4 months ago
Ah good thing the batteries are not the heavy part of the syatem otherwise this would be awkward.
REDACTED@infosec.pub 4 months ago
Doomer comment
kbobabob@lemmy.dbzer0.com 4 months ago
This motor weighs 12.7 kilograms and has 1000hp. How much does a comparable motor weigh?
M0oP0o@mander.xyz 4 months ago
There is a 1000 hp tesla with 3 motors that all together weights about 450 killograms, this seems to support your idea until you look at how much the batteries weigh…
The batteries are 550 kilograms to start, and are generally considered to not be big enough. So yeah, great they solved the issue that no EV had (EVs always had lighter motors, and very heavy batteries).
shalafi@lemmy.world 4 months ago
Had an ex-friend who was a motorhead arguing that electric motors will never beat ICE because they lack comparable torque. Look, I’m no mechanic, but I never got my head around that.
“You mean they don’t have enough torque to run a US destroyer?! Someone should call the Navy.”
Seriously, if you’ve played with even a tiny electric motor, provide DC, it goes, instantly. What could he have possibly been trying to say?
SaveTheTuaHawk@lemmy.ca 4 months ago
Electric motors don’t have a torque curve like ICE, which is why they don’t need a transmission. Those massive submarines run on electric motors.
MrSulu@lemmy.ml 4 months ago
Hopefully the numbers are correct. The article however is shockingly terribly written.
pahlimur@lemmy.world 4 months ago
I was going to shit all over this thing, but if it can do ~500hp continuously that’s awesome. Wonder what kind of efficiency it has and what the cooling requirements are. That low weight puts us back into unsprung wheel motor territory, especially if it scales down well.
Diplomjodler3@lemmy.world 4 months ago
Electric cars are already awesome but they’re just getting started. In a few years an ICE car will look like even more of a pathetic fossil (pun intended) than it does today.
fubarx@lemmy.world 4 months ago
This, in a folding, commuter e-bike.
teft@piefed.social 4 months ago
I’m gonna slap one on my fixie.
Theoriginalthon@lemmy.world 4 months ago
Anything but metric!
shininghero@pawb.social 4 months ago
I wonder if we’ll ever get enough standardization across EVs so people can start doing the electric equivalent of an LS swap. I could see this being done on a Slate truck, along with an auxiliary EV battery bolted in the back.
homesweethomeMrL@lemmy.world 4 months ago
holy shit
givesomefucks@lemmy.world 4 months ago
Lol:
The new YASA axial flux motor weighs just 28 pounds, or about the same as a small dog.
However, it delivers a jaw-dropping 750 kilowatts of power, which is the equivalent of 1,005 horsepower.
I feel like we’d need peak horsepower output of a small dog to truly understand this.
Darleys_Brew@lemmy.ml 4 months ago
An engine for a third of the price of my weekly shopping trip….thats ace.
/s