MP159 - How Does F1 Brake By Wire Work?

[@6058jeremysmith]

Brilliant as usual Marc thank you for explaining how braking on a F1 car works ...

[@josephstern9426]

Found this channel about a week ago after reading your book and I'm really enjoying the laid back and frequent upgrades. Keep it up!

[@F1Elvis]

👍

[@donny1boykie]

What a great explanation. Thanks Marc.

[@ydino5215]

really great explanation 3:11

[@bmrebholz]

Marc, I quite enjoyed this video, very informative! 👍 I'm relatively new, 3 years, to F1 (US fan) and I'm really glad I stumbled onto your channel! You have really helped me start to understand the workings of F1. Please continue the great work!

[@F1Elvis]

Thank you

[@samsmithbr]

Nice video Marc,, informative and simply explained,,, thanks! Love the dogs as well!!

[@stewartgrindlay9760]

Super video Marc. Learned a good bit more on it. Keep up the good work. Maybe name it “Brake by wire” by Banksy lol

[@russburton8517]

Thanks for another great video Marc.

[@lebophetla1239]

I love your technical content and knowledge. I've seen a few of your videos and they're awesome. Really interesting content for someone who's a mechanical engineering student such as myself. Subscribed!!! :)

[@F1Elvis]

👍

[@Pavankumar-oy3xz]

Good job Marc! Thanks

[@IdusMartiae44]

Great explaining! Thanks!

[@nevillemolokwu8598]

Awesome video, really helpful and well explained thanks

[@smokeybanditBBQ]

Thank you so much Marc, I really learned a lot

[@rottieshepcalibre9156]

Haha well done Elvis the training going well.. thanks once again for the knowledge

[@barryherron1744]

Another Great Video Marc 👍🏻

[@enzo_marios]

Great video and great watch 👍

[@davidunderwp8566]

Thanks Marc, very interesting.I have often wondered what BBW means.

[@Conservator.]

Dulantha Dhammearatchi Brake By Wire (in this context)

[@insertname8889]

@@Conservator. _iN tHiS ConTeXT_

[@StuHolland]

BBW meets BBC

[@Conservator.]

Stevo You mean Brake By Cord, lol

[@cuthbertmilligen]

Superb!

[@Conservator.]

Any idea what happened to the Toro Rosso’s last Sunday? They both lost their rear brakes, I believe.

[@F1Elvis]

They both overheated the fluid somehow and lost front brakes

[@Phos9]

Eduard van Raalte they lost front brakes and the rears locked as a result, IIRC I read an article that they each had stuck caliper pistons. Might have also had a hand in Gasly’s bad start.

[@mateuszc7727]

Really great! Thank you very much! Could you make videos about KERS, KERS - kinetic and heat generator? I was always curious how exactly they are working.

[@F1Elvis]

I have, check back through previous videos. 👍

[@mateuszc7727]

@@F1Elvis Ok ;)

[@dml09]

Weren't the examples you gave (Canada 2014 and Monaco this year) failures of the MGU-K primarily? Though the effect on rear braking in those situations was as you described. I seem to recall in Canada 2014 that Hamilton's rear brakes overheated causing him to retire, whereas Rosberg was able to manage them and continue, albeit at a considerably slower pace (same with Ricciardo in Monaco this year). I'm interested to know what would happen if say the brake-by-wire control electronics (or the actuator controlled by them) failed, but the MGU-K was still operational. Is that a possible scenario or is the MGU-K intrinsically tied into the brake-by-wire system, so would fail anyway? If it is a possible scenario, how would it affect braking? Would it cause an inconsistency in rear braking because the MGU-K would be contributing differing amounts to rear braking at different points in the lap?

[@F1Elvis]

Yes, it could happen, although far less likely due to the simplicity of the parts, but the effect would be exactly as you describe, with inconsistent amounts of rear retardation.

[@tdevosodense]

ABS and EBD and so on is also a kind on brake-by-wire

[@F1Elvis]

👍

[@rockets4kids]

The way I have heard the hybrid BBW F1 system in the past is that the hydraulics are always directly connected to the rear wheels and what the BBW ECU does is control bleed-off to the rear hydraulics to reduce clamping force and allow more of the braking to be done by the MGU-K. Can you confirm that this is not the case and it works as you have described it in this video?

[@nothke]

3:04 - "Toto Rubbish" I agree

[@douglasbarton7135]

Can the teams use the actuator(s) to brake each rear wheel independently to torque the rear axle(a la McLaren's famous second brake pedal)? Awesome content, sir👍 Keep the vids coming!

[@F1Elvis]

No, that would be illegal

[@richardhudson4649]

Thank you for an interesting video about braking, and brake by wire. How does ABS (anti lock braking) fit into both the conventional baking system and the BBW systems? #AskElvis

[@colin9418]

In the event of a BBW failure is the switch to full hydraulic a fail safe automatic change or does the driver have to select a different braking mode?

[@F1Elvis]

It defaults to the failsafe mode, but driver would have to then manage bias towards the front to protect rear brakes.

[@Ayax1937]

Спасибо!

[@ryaramaf1gobshite397]

#AskElvis will the new bigger wheels mean bigger breaks/discs which will mean smaller breaking zones & overtaking opportunities

[@TheJamaicankris]

#askelvis What benefit do the drivers derive from checking the tyres of their own and other cars in parc ferme (as vettel and bottas did in Russia?) Thank you!

[@F1Elvis]

It's just a quick visual comparison reference, to see the condition of each, given they know the mileage done and conditions etc. "How did my tyres hold out compared to his" kind of thing.

[@ripabasak8867]

Wonderful dogs

[@SwimmingJebus]

#ASKELVIS Hello Marc. How do you think Gasly Will do in the Red Bull next year? Isn't there a chance hé Will end up in the Same situation as Bottas with Merc (aka frustrated as a second driver). Do you think hé Will Be able to beat Verstappen on a regular basis?

[@fireballxl-5748]

Starts @3:08

[@Conservator.]

Isn’t it true that in even in ‘conventional’ cars, braking is 70% or (much?) more assisted and therefore feels almost the same as drive by wire? I heard that F1 drivers have to push about 150kg when braking. So it is not assisted, just partly shared with the MGU-K. (As explained in the video)

[@F1Elvis]

Yes, that's true, electro mechanical assistance is very common in modern cars and yes, 150-160kgs is pushing the pedal with everything you can muster.

[@Conservator.]

Marc Priestley Image that 26 times per round for 1.5 hours in Singapore...

[@Phos9]

Marc Priestley non BBW in road cars typically has vacuum assist. At rest, a diaphragm has vacuum on both sides, pressing the brake pedal lets air pressure on one side of the diaphragm to assist in applying the brakes.

[@Conservator.]

Phos9 I sure Marc already knew that but I didn’t, so tx!

[@johncnorris]

#AskElvis - At the beginning, were you training the dogs or us? Where's my biscuit?

[@Guust_Flater]

deja vu from chain bear video 😃👍 Edit: Mac Verstappen DNF British GP 2018. Reason Brake by wire.

[@michaeljordon704]

do brake by wire systems use brake fluid

[@F1Elvis]

Yes

[@Andrujling9]

If your here after Ricardo brake by wire issues at spa quali 2020

[@robfinney9289]

You mean to tell me that you have two young children and they don't have any pencils or paper laying around? My kid goes thru a ream of paper a month drawing and cutting stuff out that he draws.

[@F1Elvis]

A4 paper just wasn't going to cut it, it felt like an A3 cardboard moment!

[@uncleelias]

Marc, you could give Giorgio Piola and Craig Scarborough a run for their money. 😁😀

[@F1Elvis]

😆

[@stewartgrindlay9760]

Just tried that one with Banksy joke lol

[@daniasimov6505]

Vettel's nighmare. Was never the same after brake by wire

[@Feniantimmy]

We waste 3 minutes of this vid watching him do a drawing. Don't do that. It's boring.