Tesla should buy Mercedes, they'd make a good team together.
Tesla is getting out of the car business
Tiny electric motor can produce more than 1,000 horsepower
161–170 of 616 posts
Re: Tiny electric motor can produce more than 1,000 horsepower
#162A link to the press release https://yasa.com/news/yasa-smashes-own-unofficial-power-dens...
> 59kW/kg At this point why don't we get rid of the k prefix and write 59W/g? Edit: I was half joking, but various answers mention kW being standard for motors, kg being the SI unit for mass etc. All true, but as used here in a combined unit, which means "power density" it still would make sense IMO. It's not like the "59" tells you that it's a strong motor and hence you want kW to compare it to other motors. You can…
kg is the SI unit for mass, I think that would be why
Re: Tiny electric motor can produce more than 1,000 horsepower
#163Re: Tiny electric motor can produce more than 1,000 horsepower
#164Earlier quoted context omitted.
But EVs are already heavy because of the battery. I suppose percentage-wise the motors don't make much of a difference (?)
It compounds. If you have a lighter more efficient motor you need a smaller battery for the same range, that combined weight loss means you meed lighter brakes etc etc, and because the car is now lighter you size of your motor you need is less..... They claim, this compounding effect works out to basically double the effective weight saving from battery and motor. ie if you start with saving 50kg on motor, and 50kg o…
Re: Tiny electric motor can produce more than 1,000 horsepower
#165A link to the press release https://yasa.com/news/yasa-smashes-own-unofficial-power-dens...
> 59kW/kg At this point why don't we get rid of the k prefix and write 59W/g? Edit: I was half joking, but various answers mention kW being standard for motors, kg being the SI unit for mass etc. All true, but as used here in a combined unit, which means "power density" it still would make sense IMO. It's not like the "59" tells you that it's a strong motor and hence you want kW to compare it to other motors. You can…
Amusingly, given the other thread in here with people sniping each other over the metric system, I'm obliged to point out that kg, not g, is the fundamental unit of mass in SI, because even metric can't get away without some silliness.
Re: Tiny electric motor can produce more than 1,000 horsepower
#166A link to the press release https://yasa.com/news/yasa-smashes-own-unofficial-power-dens...
> 59kW/kg At this point why don't we get rid of the k prefix and write 59W/g? Edit: I was half joking, but various answers mention kW being standard for motors, kg being the SI unit for mass etc. All true, but as used here in a combined unit, which means "power density" it still would make sense IMO. It's not like the "59" tells you that it's a strong motor and hence you want kW to compare it to other motors. You can…
Comparison with other motors
Re: Tiny electric motor can produce more than 1,000 horsepower
#167Earlier quoted context omitted.
But EVs are already heavy because of the battery. I suppose percentage-wise the motors don't make much of a difference (?)
It compounds. If you have a lighter more efficient motor you need a smaller battery for the same range, that combined weight loss means you meed lighter brakes etc etc, and because the car is now lighter you size of your motor you need is less..... They claim, this compounding effect works out to basically double the effective weight saving from battery and motor. ie if you start with saving 50kg on motor, and 50kg o…
What's a bit of a shame is they are no longer an independent company ( ie wholly owned owned by Mercedes ) - so that might mean we are less likely to see these motors combined with solid state batteries any time soon.
Re: Tiny electric motor can produce more than 1,000 horsepower
#168Earlier quoted context omitted.
Mercedes should buy Tesla you mean.
One of my fundamental criticisms of Elon musk performance as a CEO. The vast stock market price and valuation should enable these sorts of transactions. It would enable Tesla to diversify operations move into applying its technology on a mass-market basis to hybrids without "damaging" the "purity" of the Tesla brand. It would enable more marques to target specific economic bands, international markets, etc. But no we…
Elon Musk has completely lost interest in being CEO of a car company. Tesla is a whatever's-on-his-mind-today company.
Re: Tiny electric motor can produce more than 1,000 horsepower
#169But what does this mean for AI...
Re: Tiny electric motor can produce more than 1,000 horsepower
#170Earlier quoted context omitted.
But why limit only to cars? Can this be used for motorcycles, e-bikes, electric buses, train wheels, e-unicycles, electric golf carts, etc? There are probably a range of application where in-wheel makes perfect sense.
Motorcycles I could imagine. Do e-bikes really need significantly more power than they have? They already run arguably dangerously fast for their application. Is efficiency not the primary target there?
Hmm. I am NOT an expert (though I ride and have owned 3 traditional motorcycles). IIUC, reducing unsprung weight is really crucial for handling -- which is why so-called "inverted" forks / front shock absorbers became basically the standard.