Live data from Hacker News

Electric race cars that look like Formula 1, but are eerily quiet

qz.com

31–40 of 63 posts

Re: Electric race cars that look like Formula 1, but are eerily quiet

#31

Earlier quoted context omitted.

I would imagine the noise thrown off by tires (tire contact with road) is enough to still present problems for these neighborhoods.

I think the horses (hooves, rattling coaches with no rubber tires) may have made more noise than that.

But not everyone had a horse carriage back then.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#33
post #24

Earlier quoted context omitted.

Unfortunately electric cars won't solve that problem. The graph on http://www.leiserstrassenverkehr.bayern.de/laerm/entstehung/ (a German government website) compares the engine noise ("Antriebsgeräusch") with the tire noise ("Rollgeräusch") for different speeds ("Gesamtgeräusch" means "total noise"). The yellow line is for trucks, the blue lines for cars. As you can see at a speed of 40 kph (25 mph) a car's tire noi…

Indeed. The engine noise is relevant for Formula 1, however, because high-performance race cars generally have much louder engines than commercial cars.

Until they went for these bloody 6-cylinder turbos that the formula is using now. They're nowhere near as loud or as impressive as either the v8's of the 00's, or the v10's and v12's of before.

Even being televised, they've got to jack up the volume to try and make it seem more exciting.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#34
This is in response to the video saying that the fans love the cars since they are almost quiet.

When I went to my first F1 grand prix, I could hear the sound of the cars from the parking lot. As a huge fan, that gave me goosebumps and got me excited. The sound is a huge plus, and all fans I know love it. Yeah you need to plug your ears when you are in the stands, but I would take that over the sound of these electric cars.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#35
I think this has a lot of promise, but I think they haven't quite dialed in the format.

I think they should focus on battery swapping as the way to deal with limited energy capacity. It makes for a nice spectacle watching pit crews do their thing. Swapping out an entire car and driver is just boring. Likewise the constraint to be able to swap the battery packs quickly will necessarily lead to the cars looking a bit different than F1. I think that also would be an improvement and help them differentiate as more than just "like F1 but more quiet and slow."

The ability to run events almost anywhere is a huge opportunity. It could make for some really compelling video footage in some awesome locations, if they can negotiate it.

Courses should focus on short sections and tight turns. Acceleration is where electric motors are most exciting, and keeping top speeds below the 200mph+ of F1 would let them run smaller events with less safety buffer space. Let people get up close and see the cars rocket out of each corner.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#36
I went to the Formula E Grandprix in Berlin last year. I am a pretty big F1 fan, watching most of the races and know whats going on but Forumla-E was actually pretty bland and boring, i believe mostly due to missing any kind of engine noise. It kind of feels like very fast soapboxes racing around (not nearly as fast as F1 though).

Re: Electric race cars that look like Formula 1, but are eerily quiet

#37

I went to the last season's final race in London. They are indeed significantly quieter than Formula 1 cars, but they're by no means silent. It's more of a not-uncomfortably-loud whining noise as the cars pass you. Formula E has been pretty exciting to me since I first heard about it 2 years ago. I wonder if it will really ever become a mainstream event though - as Formula 1 and similar gradually involve more EV elem…

I saw the race in Berlin last year and found it really boring. Saying that as a big F1 fan that loves Tesla and e-mobility.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#38
Are Formula E cars geared? Electric engines can deliver the same optimal torque throughout the RPM range, so is shifting involved? That's obviously an important part of the F1 drivers' skillset (especially during starts) so I'm curious if they just have work the brake and accelerator or also worry about gear changes.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#39
post #27

Earlier quoted context omitted.

This is a common misconception about roadway noise pollution. Electric Vehicles will still generate a fair amount of road noise pollution. There will be important improvements for city quality of life, mostly in reductions in the sub 35kmh acceleration/deceleration moments. But for highway speeds the reductions will not be that big. Check this interesting wikipedia article for reference. Linking to the part that list…

I don't think it's entirely a misconception. Yes, some people mistakenly think that an all-EV world will be totally silent, and it won't, but the noise reduction is still huge. In most situations, the average is much less important than the maximum, so the fact that typical noise from modern cars is mostly tires and air is irrelevant. Trucks, motorcycles, and performance cars are what make up the bulk of the annoying…

True, it would help a lot in city centers where tipically cars have to accelerate from a stop at lights, but not on highway style roads.

Re: Electric race cars that look like Formula 1, but are eerily quiet

#40

To answer the supposition at the end of the article, they're already working on driverless racecars. http://selfracingcars.com/

They announced the cars recently http://fiaformulae.com/en/news/2016/march/roborace-car-revea...
Post reply on HN