Ferrari SF-26

[dialtone]

Based on the latest videos, the Ferrari still has a distinctive electrical and or gear whine.
I quite like the sound And other engines make different noises as well, meaning substantial differences in them, which is good imho.

Explain what you mean by electric whine, because electric motors don't whine.

wat? Have you ever watched a WEC onboard?

My Rivian when I push down the pedal has a very loud whine.

Electric coils produce the sound by vibrating with the sinusoidal wave that switches. On top of it air ionizes around the coils causing further vibrations.

[mzso]

Based on the latest videos, the Ferrari still has a distinctive electrical and or gear whine.

Explain ... because electric motors don't whine. Not ones used for traction motors....

except for eg 4 different kinds that have infamously been on the London underground railway over the last 40 years

such (eg F1) motors are constantly being switched so constantly producing step changes (push-pull) of force vector

Do you have audio/video to show that? I'm genuinely curious.

But PWM motors do have usually a loud tone in the frequency and its harmonics of the PWM.
It could be for sure a gear related to the electric motor too. But I give very low % chance that it is just the regular gearbox noise.

I can't imagine them ever getting loud enough to ever be heard over the ICE or the gears.
Maybe the K gears are more acoustically exposed than on other cars.

wat? Have you ever watched a WEC onboard?

My Rivian when I push down the pedal has a very loud whine.

Electric coils produce the sound by vibrating with the sinusoidal wave that switches. On top of it air ionizes around the coils causing further vibrations.

If the 919 evo counts. I hear straight cut gear noise fairly often. It's actually more prominent on F1 on-board footage of the past years of some cars, where the microphone placement happened to pick up a lot of it.

On the few YouTube videos I found of Rivians accelerating I also hear gear noise. Modest, because usually they are helical gears.

Some sound is produced in electric motors (outside the noisy ones I mentioned), but not in the magnitude of ICE or gears.
Air is ionized by sparks and such. Not by the magnetic fields of a normally functioning electric motor.

On the other hand here's a car that has no gears, if you listen closely you can hear a faint sound when accelerating after the slowest turns:

[dialtone]

Some sound is produced, but not in the magnitude of ICE or gears.
Air is ionized by sparks and such. Not by the magnetic fields of a normally functioning electric motor.

Not exactly. I think the MGU-K is at 1kV which is close to coronal discharge voltage depending on the exact topology of the electromagnetic parts. Not saying that this happens in F1 though.

On the other hand here's a car that has no gears, if you listen closely you can hear a faint sound when accelerating after the slowest turns:

What's the sound at 4s in the video in your opinion? The electric motor in WEC engages past 180kph for Ferrari IIRC.

That same sound makes my Rivian when I push the pedal at least half down and plenty of current is driven in the coils.

[Sansovino]

Some sound is produced, but not in the magnitude of ICE or gears.
Air is ionized by sparks and such. Not by the magnetic fields of a normally functioning electric motor.

Not exactly. I think the MGU-K is at 1kV which is close to coronal discharge voltage depending on the exact topology of the electromagnetic parts. Not saying that this happens in F1 though.

On the other hand here's a car that has no gears, if you listen closely you can hear a faint sound when accelerating after the slowest turns:

What's the sound at 4s in the video in your opinion? The electric motor in WEC engages past 180kph for Ferrari IIRC.

That same sound makes my Rivian when I push the pedal at least half down and plenty of current is driven in the coils.

You are correct - the electric motor does indeed engage once 180kph is exceeded and then you can hear the difference.

[mzso]

What's the sound at 4s in the video in your opinion? The electric motor in WEC engages past 180kph for Ferrari IIRC.

Sounds like all other straight cut gears to me. That sudden onset of volume is strange though. It's just a stuttery faint background chirp when there is no load.
Are they permitted to RPM match the electric motor (wouthout adding to the output)? Otherwise I would expect it to have more noise during, if it was just a "geared flywheel", when not used.

[Sansovino]

What's the sound at 4s in the video in your opinion? The electric motor in WEC engages past 180kph for Ferrari IIRC.

Sounds like all other straight cut gears to me. That sudden onset of volume is strange though. It's just a stuttery faint background chirp when there is no load.
Are they permitted to RPM match the electric motor (wouthout adding to the output)? Otherwise I would expect it to have more noise during, if it was just a "geared flywheel", when not used.

It's literally the electric motor - hence why at the beginning of the video it's relatively quiet until the speed exceeds 180 (correction, it actually is 190kph) and they kick in "sudden onset of volume". You can also hear it under braking due to brake regen.

[sucof]

What's the sound at 4s in the video in your opinion? The electric motor in WEC engages past 180kph for Ferrari IIRC.

Sounds like all other straight cut gears to me. That sudden onset of volume is strange though. It's just a stuttery faint background chirp when there is no load.
Are they permitted to RPM match the electric motor (wouthout adding to the output)? Otherwise I would expect it to have more noise during, if it was just a "geared flywheel", when not used.

At this point it seems whatever people write to you, you just keep repeating yours. At least stop in such a case, and let us discuss other more meaningful things.

[Mandrake]

What's the sound at 4s in the video in your opinion? The electric motor in WEC engages past 180kph for Ferrari IIRC.

Sounds like all other straight cut gears to me. That sudden onset of volume is strange though. It's just a stuttery faint background chirp when there is no load.
Are they permitted to RPM match the electric motor (wouthout adding to the output)? Otherwise I would expect it to have more noise during, if it was just a "geared flywheel", when not used.

If it was straight cut gears you would hear it continuously, not starting at 180kph and then stopping at 2xxkph again. There are videos of old STW cars where it becomes louder and louder the faster they go, not intermittent like in the examples here

[mzso]

It's literally the electric motor - hence why at the beginning of the video it's relatively quiet until the speed exceeds 180 (correction, it actually is 190kph) and they kick in "sudden onset of volume". You can also hear it under braking due to brake regen.

Saying literally won't make it true. No motor that I know of is that viciously loud or has that sound character in the first place. And I doubt you could find an example.

At this point it seems whatever people write to you, you just keep repeating yours. At least stop in such a case, and let us discuss other more meaningful things.

If it sounds like gears it most likely is gear noise, in my opinion. Feel free to think otherwise. None of us will have conclusive evidence. So it's fine by me to end here.

If it was straight cut gears you would hear it continuously, not starting at 180kph and then stopping at 2xxkph again. There are videos of old STW cars where it becomes louder and louder the faster they go, not intermittent like in the examples here

Since you hear the noise faintly and jerkily outside that (mainly in turns), my best guess is that the motor is powered to match the RPM of the engine. Since that's not perfect, you get that jerky faint noise. So don't bet on it being the motor. I don't think Ferrari invented a motor that has a squealing gears sound.

No-one was convinced of anything. Oh well. I guess it's time to get back to more SF-26 relevant stuff.

[venkyhere]

is this thread still about the SF26 ?

[f1316]

is this thread still about the SF26 ?

This. Let’s stop talking about the nature of electric motors unless it pertains to the current Ferrari F1 car.

[Owen.C93]

Interesting little flicks on the corner of the diffuser. It’s been pretty standard to indent the corners to help flow attachment, but they’ve used the loss of volume to add a little turning vane.

[AR3-GP]

Tire rake.

[De Wet]

MSportsXtra:

[F1NAC]

Those upper suspension elements are really high.