That's almost 3Gs of acceleration. Impressive!
So the same as the Gravitron amusement ride popular in fairs
New world record with an electric racing car: From 0 to 100 in 0.956 seconds
111–120 of 307 posts
Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#112Earlier quoted context omitted.
Who the hell would think that a 1s battery charging time with a racing car would make any sense at all?
Pit stop times matter, and supercapacitors exist. I'd love to watch that race, especially if the cars were sucker cars like the one in the article, and the drivers got to wear high-G fighter jet suits. The best supercapacitors apparently have 20x the energy density of the best batteries. Apparently, self-discharge can be as low as 20% per day, which rounds to zero for racing. They only cost 10x more than lithium batt…
> The energy density rating of the average supercapacitor is between 2,500 Wh per kg and 45,000 Wh per kg.
That's from your source, and those numbers are entirely made up. The Wikipedia article for supercapacitors lists a more normal 1.5 Wh/kg to 260 Wh/kg (with only one research nanomaterial going above 15 Wh/kg). No commercial supercapacitor has a higher energy density than a standard lithium ion battery.
Edit: The absurdly fast charging speeds would make for some fun pit stops, though
Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#113[flagged]
Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#114Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#115A Ducati MotoGP bike does it in 2.3 seconds just as a point of reference.
Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#116Very cool, but also kind of impressive that a Tesla manages this in ~2.5 seconds while doing all the other stuff a production car does. What time would a Tesla get if you stripped out all the extra weight? (seats, glass, electronics, roof, etc. etc.) Video here (900 MB download): https://polybox.ethz.ch/index.php/s/uKWFRcBjtl4foEy/download... (couldn't find it on their YouTube page yet: https://www.youtube.com/@AMZFo…
Still wouldn't get close (in the performance sense, where the effort to time gained is logarithmic in nature). This car weighs 309 lbs. The batteries alone in a Model S weight 1200 lbs.
True, but this car has low 300s HP, no torque mentioned that I saw. The Tesla is over 1K HP and torques. The Teslas, for road cars, are pretty stunning for acceleration. Agreed that it's not going to reach this level of 0-100 performance, but it sounds like it can get shockingly close.
I've driven Porsches on the track, and the Tesla Model S Ludicrous loaner I had for a few days is startlingly fast. Fast enough that I decided I was glad I didn't get one.
Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#117100 km/h, to remove any ambiguity
Yeah, "0 to 100" is so commonplace in Europe that even the engineers from ETH Zurich leave out the units. Reminds me of being asked in the US what the fuel consumption of our car was (in miles per gallon) and not being able to answer because the usual unit in Europe is liters per 100 km (didn't have a smartphone back then).
"0 to 60" is likewise so common place in America that we often leave out the units (mph).
It's probably obvious enough in the car context which unit is being talked about, between 0-60 and 0-100.
Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#118Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#119Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds
#120I find the suspension design to be really interesting. It seems like the front wheels and the rear wheels each share a single coilover and they use hydraulic cylinders at each wheel to transmit the force. I'm sure this saves a lot of weight but I'm interested in how the suspension dynamics are changed by two independent wheels sharing the same spring and damper.
Do any other vehicles do this? Are there are any other applications where it would make sense?