BYD builds fastest car

Post by privatelypublic » Mon, Oct 06, 2025, 12:38 AM UTC

brianwawok wrote: post #76

privatelypublic wrote: post #71

Earlier quoted context omitted.

I'll need evidence of "Top power at Top Voltage." Since so little capacity is at that part of the curve, It'd make sense to design around (as in avoid, not feature) it rather than use it. I suspect theres inductance and capacitance enough that even if the motors can't handle the voltage, it can be "clipped" until the pack comes down. (Especially since fmu these are 3phase AC motors, the motor driver is already regula…

Well you can see reports of people drag stripping teslas, and comparing speeds at 100 vs 90 vs 50% charge. Whatever the reason, you do slow down.

Post by foobarian » Mon, Oct 06, 2025, 12:44 AM UTC

brianwawok wrote: post #76

privatelypublic wrote: post #71

Earlier quoted context omitted.

I'll need evidence of "Top power at Top Voltage." Since so little capacity is at that part of the curve, It'd make sense to design around (as in avoid, not feature) it rather than use it. I suspect theres inductance and capacitance enough that even if the motors can't handle the voltage, it can be "clipped" until the pack comes down. (Especially since fmu these are 3phase AC motors, the motor driver is already regula…

Well you can see reports of people drag stripping teslas, and comparing speeds at 100 vs 90 vs 50% charge. Whatever the reason, you do slow down.

Post by moralestapia » Mon, Oct 06, 2025, 12:57 AM UTC

jakeinspace wrote: post #77

3000 hp? Not sure if that's measured at the "crank" or the dynamo, but that's over 2MW, probably pushing 2.5MW of power draw from the batteries assuming a motor efficiency of 90% and some other losses. Apparently that's getting drawn at 1.2kV from the batteries, so "only" around 2kA of current draw. That top power draw would drain the 80kWh batteries in around 2 minutes, though I'm guessing you'd hit thermal throttli…

Post by jacquesm » Mon, Oct 06, 2025, 1:08 AM UTC

lossolo wrote: post #56

jansan wrote: post #19

Earlier quoted context omitted.

Seven minutes for the Nordschleife? Sabine Schmitz could have done that with a van. But honestly, ther are a Lot of production cars that went considerably faster. And the non-production Porsche 919 Hybrid EVO did it in 5:19, which is an entirely different league.

> Porsche 919 Hybrid EVO did it in 5:19 If anyone hasn't seen this, I highly recommend it, even if you're not a car fan. https://www.youtube.com/watch?v=PQmSUHhP3ug

Post by hackernewds » Mon, Oct 06, 2025, 1:31 AM UTC

ryandrake wrote: post #82

Ever since I rode in a BYD in China I've thought it would be great to be able to get one in the USA. It just really felt complete, put together and polished in a way that I haven't seen in a "normie" U.S. car in a long time. Too bad our country uses high tariffs and regulatory barriers to protect its dinosaur companies.