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New world record with an electric racing car: From 0 to 100 in 0.956 seconds

ethz.ch

101–110 of 307 posts

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#102
post #68

Impressive but for reference, about half the acceleration of a Top Fuel dragster, which are also still getting faster. Here's Brittany Force who holds the current records (fastest time, fastest speed): https://www.nhra.com/news/2022/brittany-force-sets-national-... 0 to 338.43 mph in 3.665 seconds over 1000 feet. (The cars got too fast for 1,320 feet and have been racing 1000 feet since 2008.)

8G's max acceleration and -6G when they hit the brakes (using a parachute)

11,000hp!

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#104

Earlier quoted context omitted.

In Micromouse ( https://en.wikipedia.org/wiki/Micromouse ) - a competition where autonomous devices solve a mouse maze - the fastest competitors are all using fans to increase traction (and thus speed).

radicalbyte, you're absolutely right that the use of fans in Micromouse increases the traction, and therefore the speed at which the maze is solved. Suction allows for impressive performances. However, a small caveat that might be worth considering is that while the suction indeed increases speed, it might be more accurate to say that it primarily improves acceleration instead of car speed: The issue often lies with…

Speed = ∫(acceleration) dt

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#105

Earlier quoted context omitted.

I assume it's because racing, as a sport, is a lot less interesting without the variable of a human with particular skills operating the vehicle. I doubt crowds would be as interested in watching cars race on autopilot, though it'd still be kind of cool, I guess.

> racing, as a sport, is a lot less interesting without the variable of a human with particular skills operating the vehicle. If full self-driving gets much better, I think it could be fun to see this happen. It would be like a hackathon with teams swapping out and improving on strategies through laps. The qualifiers could happen on electric miniatures then the final round would get a full car to race on a track.

I think a fully automated battlebots arena might be more fun but I'd still watch track racing.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#106
post #62

Out of curiosity, what's the point of a driver in something like this besides to have a human in the vehicle adding weight? Are they doing much? Serious & maybe very ignorant question. - Edit - For clarification, my reason for asking was due to this occurring in less than 1 second. I don't understand what the driver does as I'm assuming they have no gears to shift or turns to make.

I’d hazard you can’t get a world record without a human being in the car? I’m no mechanical engineer, but I could definitely make something without a human inside of it go from 0-100 in less than a second.

Definitely could do it in sub 0.2 seconds quite easily.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#107

Out of curiosity, what's the point of a driver in something like this besides to have a human in the vehicle adding weight? Are they doing much? Serious & maybe very ignorant question. - Edit - For clarification, my reason for asking was due to this occurring in less than 1 second. I don't understand what the driver does as I'm assuming they have no gears to shift or turns to make.

Guinness world records are well defined and some are kinda arbitrary. In some sense, I'm sure the driver is there to satisfy the rules of the world record. In another sense, I'm sure they're there to have a load of fun, too.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#108
post #23

Very 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.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#109

Is this for some kind of [European?] [electric?] Formula SAE equivalent? I took part in formula SAE ~20 years ago! Some of the first and most rewarding engineering work I've done.

Yes, or maybe more accurately - we are the American equivalent of Formula SAE Germany. The German teams are significantly more advanced and better funded, with some of the teams running custom built electric inhub motors (something that's unheard of here in the US) I am currently on San Jose States Formula SAE team - we merged our electric and combustion teams last year to go all electric since it's where the stiffes…

I didn't know San Jose State had enough money to run an team like this.

Unless I'm mistaken, aren't Formula teams expensive? the cars get rebuilt often, I imagine its no different with electric (less to rebuild, perhaps, but anything mechanical would need to be)

Thats awesome though!

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