How Bugatti's New Electric Motor Bends Physics

[@ZirothTech]

It's great to see how the partnership with Rimac is giving Bugatti an extra charge! Check out Onshape for FREE: Onshape.pro/Ziroth - It's my go to CAD software and I promise you won't regret giving it a try. Some great comments here adding to the video, here is a summary: 1) Correction at 2:34 - This is not an exponential growth it is a curve with an exponent of 2 (quadratic) - I loosely and inaccurately used the phrase here! 2) The paper at 8:00 uses Celsius to report a percentage drop, which isn't very useful as it's a relative term. 3) I compared RPM as all the motors have similar geometry (automotive size) - but really this forgets the importance of the radius (which needs to be large enough to get some torque from the motor)

[@Zuluknob]

How does it compare to Koenigsegg’s Dark Matter motor?

[@Youtube_Stole_My_Handle_Too]

6:04 Nonsense. There's no time in kW. If 600 kW can power a village it can do it regardless of how long time. Why do you believe you're entitled to speak about technology without passing middle school physics?

[@Zuluknob]

@@KZbin_Stole_My_Handle_Too 5:55 You didn't listen. A 25kwh battery that can deliver 600kw.

[@Youtube_Stole_My_Handle_Too]

@@Zuluknob I did indeed listen. You're as blank in this topic as the author.

[@Zuluknob]

@@KZbin_Stole_My_Handle_Too goto the time code 5:55

[@royh6526]

Nowhere do you explain the "bend physics" statement. Tesla uses carbon fiber wound rotors and presumably so does Bugatti. Liquid cooling of batteries is likewise not new. The only part was the magnetic path which seems to be different from each company, and an area of great concern as each company strives for the optimum configuration. Still how does this "bend physics"?

[@DescartesRenegade]

Anything sufficiently complex to the ignorant is indistinguishable from magic.

[@thokling361]

@@DescartesRenegade This isn't just magic - it's sorcery!!

[@pb223]

Thanks for saving my time 😊

[@handlealreadytaken]

He meant the click-bait reaction and then disappointment of nothing new.

[@brodriguez11000]

New saying: you bend it, you buy it.

[@6alecapristrudel]

"26% lower temperature, 54 vs 40 degrees C." Me: ~Screams thermodynamically~

[@javelinXH992]

Adds “…as long as we set 0 Celsius as the lower bound”. Now we can all relax. 😉

[@Winnetou17]

@@javelinXH992 But it's not on that written slide that's shown at 8:10.

[@javelinXH992]

@@Winnetou17 I know, but most people who do science and engineering know how the full temperature scale works. 😉

[@patrikfloding7985]

​@javelinXH992 sure, but these percentages are meaningless regardless.

[@sjoormen1]

@@patrikfloding7985 as is the whole video.

[@umountable]

The force is going up quadratic and not exponential. Thats a HUGE difference :D

[@raphanunu6912]

Unfortunately this is not the unique lie, error, misunderstanding or stupidity evoked here !

[@McDaniel77]

Exponential means it's going up more and more the higher you go. 😂

[@stephanevautrin7317]

​@@McDaniel77that is true but also extremely unprecise, the force does in fact follow a quadratic formula and not an exponential one. Both go up really quick but at extremely different rates

[@McDaniel77]

@@stephanevautrin7317 The exponent is 2 for quadratic formula. 2² = 4 but 2⁸ equals 256, it's much more than four.

[@mactabilis6039]

Relly bro... He just bent my physics and now you had to straigten it all out again. Say it with me... "I heart clickbait"

[@irinaratushinskaja7900]

Two (semantic-ish) points: It's not exponential if it goes by the square. And saying "temperature is 23 percent lower/higher" is basically absurd as it's scale-variant.

[@ZirothTech]

That's a great point, maybe they should have used the kelvin scale

[@MrBoubource]

​@@ZirothTechthe results would have been less impressive (and meaningless). 40°C instead of 54°C is perfect!

[@prateekkarn9277]

I am stupid, I don't understand how square isn't an exponential, could you explain why we can't say square is exponential? Does it have to use Euler's constant to be exponential? What's the correct term to describe the graph here then?

[@eliyahzayin5469]

​​@@prateekkarn9277 exponential growth is any function of the form C*a^x. For example if a=2, we'd expect the centrifugal force to double every time the motor speed increases by a single rpm. Essentially quadratic growth (or any growth that is of the form x^a) relates a scale factor to another scale factor while exponential growth relates a step to a scale factor.

[@red_rassmueller1716]

​@@prateekkarn9277just depends if x is in the exponent or not... with x to the 2 it is not in the exponent and therefore not exponential

[@johanfolkesson5170]

1: Quadratic, not exponential. 2: That gives 44% increased force, which does not round to 50%. 3: In relation to what? I didn’t find any mention of the rotor diameter, or any other meaningful comparison.

[@mvez10]

Thanks to all the comments for saving me 9 min, i was here for the physics portion of this video. glad to save some time.

[@markotrieste]

A tip: instead of comparing RPM, compare peripheral speed. Speed to material strength ratio is constant wrt size, while RPM have an inverse relation to size (for the same material strength).

[@brunonikodemski2420]

Yes. Look up inertial energy storage devices, and and look at their rotor shapes. When we did this with fiber materials, the ideal rotor looked kind of like a misshaped tit. With metals it had a more blunted shape. We rant these into destruction, often at about 150,000 rpm, usually in partial vacuum, since the surface velocities were supersonic. Metal rotors typically destruct into about three pieces. Fiber rotors tend to shred, especially in air, since the supersonic shockwaves become very irregular, as soon as one fiber starts giving way. This is actually a safety factor, since if it disintegrates, the stored energy is distributed into a mesh of garbage, instead of flying bullets.

[@mitchel90mcnee]

@@brunonikodemski2420 Whoa, is there any footage or more information on these tests?

[@brunonikodemski2420]

@@mitchel90mcnee Should be everywhere on Google. I have NARC reports from the Jimmie Carter era, where much of this work was done. I think Switzerland actually runs an electric/inertial bus service, but uses a non-optimal flat rotor, so as to fit under the floor. We did some of this work for the BARTD system research, for California, replicating about 1/4 of a rail car weight/inertia. This would allow less current to be needed on startup, and could be used for regenerative or dynamic braking as well. Worked great, but too costly for them.

[@InservioLetum]

Do be sure and scale that to sitting in a traffic jam in the morning in this. You would be standing still SO much more efficiently with so many horses asleep in the back. 🤭

[@markotrieste]

@@InservioLetum Sorry, I don't understand what you want to say. What's got rotor peripheral speed to do with traffic jams?

[@32BitJunkie]

Energy density is NOT how fast a battery can discharge, that's C value. Energy density is the ratio of energy to volume

[@SuperBiologe]

he talkes about power density and that is as the word says the max power drawn per unit volume... what are you on about?

[@Shaun.Stephens]

Thank you, you saved me commenting the same thing.

[@Shaun.Stephens]

@@SuperBiologe You're right and wrong. Density is power per unit volume (or mass) but ziroth was using it to mean how fast current could be delivered - which as 32BitJunkie correctly states is a battery's 'C' rating. Usually the higher the power density the lower the amps that can be delivered. An 18650 can have over 3,400 mA/h storage but if you want one for high current use (10 amps and above) such as a powerful vacuum cleaner, vape or vehicular use the power density drops to 2,000 or so. Higher current draw = lower density with current technology.

[@addygreen8919]

Thanks for clarifying, this really confused me. The thing with "exponential" was also confusing (he probably meant x^2 and not a^x).

[@SuperBiologe]

@@Shaun.Stephens you are confusing quite a bit of jargon here... Power != Energy and what you ment to write was "mAh" not "mA/h". It is generally speaking true that batteries with higher power density have lower energy density as it is a trade off in battery design. The analogy used in the video describes a village that needs power. Therefore the power density is indeed important as a relatively small battery can deliver the power needed by said village, however due to the small capacity of the battery, it will be empty quite quickly.

[@fintux]

4.1 C to 1.0 C is not 76% reduction. They are degrees, not absolute temperatures. You can only use them for delta temperatures that way, say the coolant is 0 C, then yea you can say delta-T dropped 76%. But 0 C is not the absolute zero. Easy check: convert the units to Fahrenheit and do the same math. The drop would be from 39.38 F to 33.8 F, thus 5.58 F drop which would be 14.2% reduction. If changing units yields different results, then the math is wrong - like is in this case. An easier "reality check": if temperature went from +1 C to -1 C, how much would the percentage drop be? 200%? It's not possible, you cannot lose 200% of temperature. Nice video nevertheless, just wanted to address this (relatively common) error.

[@patrikfloding7985]

Yes. It annoys me so much when TV "metrologists" say things like "this year the mean temp of July was up 20%". We would all be dead if that happened.

[@BrainTimeOut]

and thats why you should always use kelvin instead of celsius when calculating. 277k to 274k is a reduction of 1,09%. Kelvin uses the same graduation as celsius but starts at absolute zero -273,15 °C

[@edwardfletcher7790]

Thank you for helping keep bad science KZbinrs from feeding is total BS 👍😁

[@brunonikodemski2420]

We did fluid cooling of electrical drives back in the early 70's, using the absolutely best Types available, which were various PCBs. We did railroad engines, and had a ten-ton military 6-wheel truck as a test vehicle. Did ships drives, and wind turbines. However, the PCBs were found to be carcinogenic, had to be removed, and the alternate fluids, typically antifreezes or light silicones, had all sorts of secondary problems, and were highly inefficient. These projects were dropped by us, but the computer industry, and the heat-pipe industries started to use these techniques with volatiles, and these worked quite well. Change-of-state cooling is also very effective.

[@milescoleman910]

Surely there’s something more conductive to heat. Is it that it’s hard to make materials super heat conductive without making them electrically conductive at the same time?

[@brunonikodemski2420]

@@milescoleman910 Generally speaking, heat is conducted by the same types of carriers, namely electrons and phonons. Heat in a wire is mostly phonon flow, but requires a large Fermi Sea of electrons to make the transmission possible. Seebeck and Peltier devices are examples of where people have tried to maximize the electrical efficiency, but reduce the heat flow to a minimum. Usually done via vacancy methods such as pillars or slotted structures. At very small atomic levels, heat flow can be hugely non-isotropic, and there are materials which flow heat "sideways" better than "up/down". My son studies these as thin films, and some are being tried for semiconductor mounting to adjacent substrates. The only other common method to transport heat without electrical connectivity is via change-of-state materials, as used in special heat pipes, where a refrigerant type of carrier is used to make a hydraulic/gaseous flow through a non-conducting pipe. The pipes unfortunately are ceramics or glasses, so fragile. Metal piping is commonly used, but these are electrically conductive. Look up those types of items to get details. Thousands of papers have been printed in this area, was a hot topic at around the 1980's.

[@romiller7291]

One word ,well 2. Li po² ..😝dummies I use thorium...cheaper battery and last 20yrs

[@patrickday4206]

Only thing that concerns me is if the oil over time gets contaminated from breaking down substances it passes over eventually the failure would be bad. Kinda how pure water isn't conductive until impurities are added. 800 volts doesn't need that much

[@ironman5034]

Feels like a clickbait, where is the physics bending?

[@gonzalezm244]

You can’t actually bend physics :) Just another way of saying there’s clever Engineering involved.

[@matisvanasse5905]

Hyperbole

[@xeridea]

With the algorithms, unfortunately people doing clickbait titles is becoming the norm, though it is highly frustrating.

[@ironman5034]

@@gonzalezm244 i get that, but where is the clever engineering? Lol immersing the batteries in oil?, 24000 RPM? Other EV motors achieve that too

[@brodriguez11000]

@@gonzalezm244 Black hole in every EV.

[@powerbuoy]

They probably have a large ultra capacitor pack to reduce the impact on the battery and allow for rapid discharge.

[@Martin_Speed]

Highly doubt it. Capacitor's energy density is still too low

[@atrumluminarium]

2:34 small correction: quadratically not exponentially (i.e. v² not eᵛ)

[@xeridea]

Interesting, I think people in general just say exponentially referring to non linear growth, I didn't know there was a difference until it was pointed out.

[@OliverBatchelor]

I came to say the same thing!

[@deanberchenbriter8758]

V could also be 2

[@beforebefore]

4:07 - 100,000 RPM isn't special, unless the diameter is stated. Small motors regularly hit 100k, but convert that to an 8" diameter rotor and it becomes unrealistic.

[@jumphigher-runfaster]

Novec are not non-toxic and are phased out. On March 31 2025 there will be no way to order them from the manufacturer. It's due to being PFAS based and regulations aimed to reduce health risks.

[@FADEua]

While 3M is discontinuing all of it’s Novec line, not all of them contain PfAS and in their announcement 3M said that while they had to discontinue some of the Novec products due to containing PFAS they decided to shut down all of them in an effort to get ahead of possible future regulations.

[@JanicekTrnecka]

Thats a shame that there is such hysteria around it, now we will be awaiting to replace novec coolant with propane or something similar to have some more fun.

[@mjouwbuis]

@@FADEua which is corporate speak for damage control, they apparently know it's likely to cause problems.

[@DarkAttack14]

They are completely non toxic, while pfas may be bad for human anatomy over a long term it's not due to toxicity

[@DarkAttack14]

​@@FADEuait's going to suck for children on wheelchair busses when companies can't easily replace their novec based underhood firefighting systems ;)

[@diamondsolo]

Koenigsegg did that but with 250kw output a year ago. Less weight , higher performance.

[@DutchBart666]

AFAIK also with a collaboration with rimac, rimac has also collaborated with Aston Martin and a variety of other manufacturers

[@B-son]

@@DutchBart666 Rimac did not do the motor, they helped Koenigsegg with the battery pack.

[@kerimca98]

And Koenigsegg put that in Gemera, 800 hp electric + 1500 hp V8, 2300 hp combined, ridiculous

[@diamondsolo]

@@kerimca98 Then they called it dark matter and called it a day. Bugatti just copied Koenigsegg but needed help from cosworth and Rimac. Named it after an old clock mechanism and connected it to Apple.

[@InservioLetum]

...stood still in 45°C heatwave traffic jam of morons who abandoned their own vehicles to gibber excitedly at the glass coaster they hold up as if they've a full camera crew and studio financing.

[@titastotas1416]

The pedantic- the motor does not bend physics, the physics bends it.

[@palpytine]

Novec isn't just a fluid to collect heat. It's a whole family of chemicals used for phase change cooling and works by boiling (the boiling point can be controlled) then carrying the heat away as a gas where it's then condensed. It's not a new thing (the patent expired in 2020) and It already has major applications in datacentre cooling and as a fire suppressant in applications where water can't be used (e.g. art galleries)

[@weshoward1984]

If you want real physics bending technology look no further than Koenigsegg's "Dark Matter" electric motor that makes 800hp and 922 lb ft tq (1250nm) all while weighing under 40kg (88lbs)

[@mockingbird187]

It's motors like these that are just DYING for a worthy, lightweight battery.

[@motogee3796]

Amazing...axial flux motors

[@weshoward1984]

@@mockingbird187 agreed, the only real thing holding EV's back right now is battery technology, once it catches up to our motor tech EV's will be even faster and more importantly be able to travel for days on end without needing to recharge...

[@CRINGE_EDITS_]

The light weight of the egg motor and the power of the bug motor. That's what we can call a electric BEAST

[@arendadadovanbeek6335]

About 3 years ago I did 3D design a immersive cooled batery pack as a replacment for my Brammo Empulse battery when it eventually gives out. It has also almost twice the amount of energy in the same space and was a bit lighter then the original. It would make 200km trips and fast charging very possible. Good to see I was on the right track.

[@JohnDlugosz]

2:51 No, that's polynomial growth, *not* exponential! Exponential growth is another league entirely, and you're simply wrong to say that its in this higher league. The term "increases exponentially" refers to a specific type of growth where the rate of increase is proportional to the value of the parameter. That is, _x_ is in the exponent position. Here, we have _x²_ , where a constant 2 is in the exponent position.

[@OliverBatchelor]

I came to say the same thing. Reading the comments, many people have also noticed this... seems like a rookie error if you want to talk about engineering topics. Maybe Joe Public won't know the difference, though.

[@muffin_simp]

If it looks like clickbait, walks like clickbait, quacks like clickbait, might be clickbait

[@StefanReich]

2:34 Shows parabula. Says "INCREASES EXPONENTIALLY!!"

[@Proud2bmodest]

The exponent of a parabola is 2. For linear growth the exponent has to be 1 and only 1.

[@lithiumdeuteride]

Exponential growth is when the variable is the exponent. 2^x is exponential growth. x^2 is quadratic growth.

[@ILoveTinfoilHats]

​@@Proud2bmodestthat's not how it works, you should have learned this in high school. Exponentially means it's a function of its current value, something a parabola is not.

[@mandrakejake]

A natural progression from immersion cooling would be turbulated flow cooling, like top spec radiators. The tubes in the radiator have flow disruptors inside which dramatically increase thermal transfer as the cooling fluid is not laminar, but turbulent. I can imagine the cell casing to have a rough exterior to facilitate this.

[@JanicekTrnecka]

I dont think this would be necessary, as it would run into a myriad of problems - you will have near perfect thermal dissipiation on the outer shell of the cell but what about the inner cell environmnent. I think that with flow cooling we do have enough room to concentrate on other aspects

[@bashkillszombies]

So it increases the force 2x. But then you increase the RPM more and suddenly it "increases" the force to 50%? Someone was reading a script and didn't think any of this through. :P

[@aqdrobert]

Mulder: I purchase everything on line that bends physics. Scully: No, I don't want to buy the collection.

[@DerekDavis213]

At 0:10 , the narrator says Bugatti's new system is the most impressive he's ever seen. The narrator that looks like he just got his first drivers license.

[@patrikfloding7985]

The kids today have seen a lot, thanks to KZbin.

[@DerekDavis213]

@@patrikfloding7985 The narrator looks to be 19 years old. Best he's ever seen, eh? A few years ago, that guy didn't have a drivers license.

[@paulobueno8916]

​@@DerekDavis213said the 300 years old surely

[@demimoto9095]

Yeah, how dare he be young! Grrr the youth of today are ruining everything! Lol what a dumb insult to make

[@DerekDavis213]

@@demimoto9095 If a 12 year old says "Dad your new Honda is the most amazing car I have ever seen" , that doesn't mean much because the kid hasn't seen much of anything at such a young again. Now do you get it?

[@tomellis4750]

1,800 hp, should be enough to get to the supermarket

[@Barskor1]

Anyone owning one has never gone to a supermarket. :)

[@stefanschuchardt5734]

He means *to buy one*

[@maxx0r050]

And taking the supermarket home

[@cds5067]

what if the supermarket is at the top of a hill? then what?

[@tomellis4750]

@@cds5067 The trolleys will need brakes.

[@karlohorcicka7388]

Synchronous means it has an aditional winding which makes sure that the speed of the rotor matches the speed of rotating magnetic field. Normal are asyncronous and they usually spin 2-5% slower

[@Critical-Thinker895]

Any phrase that includes the idea they can change "physics" should be a red flag to run away.

[@MohammadAmin-k4y]

my love for cars and engineering is at its peak in this video thanks Ziroth

[@kimbleangus7321]

Nice presentation and narration! I especially loved the graphic at 1:07 which showcases the structure of the car. I thought everything was strung together decently and was pretty engaging to watch.

[@laurenceevans3913]

Engineering concepts from disparate solutions coming together to create a breakthrough, with further reaching implications then the sum of it's parts. It's truly a beautiful piece of engineering and a testament to human ingenuity.

[@BeatMaster2000]

The ad actually was actually helpful for a project i want to start. First ad ive actually needed lol.

[@OptiVR]

if you want revs out of an electric motor you reduce it's radius and increase it's length, the closer the magnets are to the center the faster they can spin, I have small electric motors that reach some blistering speeds upto 100,000 rpm using that principle, so i'm quite sure bugatti can too.

[@Barskor1]

So you can put more windings and IRC torque onto the shaft as well?

[@johngalt97]

In an automotive application, how much speed reduction inefficiency can be tolerated in the transmission path to wheel-speed torque?

[@NullHand]

​@@Barskor1for highest speed, all coil windings should be outside of the rotor on the stator.

[@ZirothTech]

I should have made this clearer! Great points. The important part is that it can achieve high speeds with a significant radius (which is needed to achieve the required torques)

[@pauljs75]

The impeller motor in any vacuum cleaner that's decent is rated at something like 50,000 RPM. But those things are still fairly compact and don't have that large of a radius.

[@JunjiShirai]

Hello Ziroth, this is my first time writing a comment to your wonderful and easy to understand videos. I am glad to have come to your video as I have been an enthusiastic fan of all kinds of mechanical things although I am an architect / urban planner, I am fan of fast cars ( I hold a Class A competition license for domestic events). I look for more of your fine videos so that I can fulfill my interests in mechanism and learn things.

[@daviddunmore8415]

How about an 800BHP pure EV version, with the ICE engine and ancillaries replaced with more batteries?

[@BoraHorzaGobuchul]

A hybrid would be better

[@kerimca98]

Would be an insult to Bugatti, previous base model made 1500 hp

[@patrikfloding7985]

Yes, the weight of the 16 cylinder engine does seem like a bad design choice.

[@josephpiskac2781]

Thanks for ONSHAPE!

[@More-Sauce-Man]

One of the best car designs of all time. Truly gorgeous from every angle.

[@BondiAV]

Nice video, interesting concepts. One small objection: while the rotor is spinning faster, the centrifugal force that acts on the magnets grows quadratically, not exponentially. I know a lot of sales and marketing people use "exponential" to designate any variation that grows faster than a linear function; but in a video published by an engineer, technical accuracy is expected.

[@milithemuffin4534]

I'm honestly all in for oil cooling. At least it won't rust like tesla motors that had a single lip seal keeping coolant away. Also, thin (low viscosity) fluids were sold as aftermarket solution for e-bike outrunner hub motors to improve heat transfer and corrosion resistance at the cost of extra friction.

[@mullerenergy]

Interesting video, but saying on a (semi) scientific channel that lowering the temperature from 54C to 40C is a lowering of 26%, is a little bit disappointing. It's in fact less than 4%.

[@loganhodgsn]

2:36 Quadratically, not exponentially

[@jacobrogers2214]

Love the production value but there needs to be some proofreading.

[@pingnick]

Wow yeah for hybrid aircraft very soon this cooling oil will be extremely important presumably! Many aviation and other applications for all of this!!

[@pingnick]

The cooling oil will also presumably keep electric systems as the primary or only energy source for short/medium duration performance terrestrial vehicles!!

[@joejoejoejoejoejoe4391]

Direct oil cooling has been used on electric transformers for a LONG time, it's nothing new.

[@Pastronomer69]

Doesn’t make any sense for aviation, it’s simply too heavy to have that much liquid, you also have an abundance of air to use for cooling

[@stefanschuchardt5734]

Got air?

[@pingnick]

@@Pastronomer69 oh well for a hybrid you’re trying to reduce the weight of the liquid burning engine(s) etc more than electric systems add-wankels may become more common for terrestrial vehicles-I’m not sure of aviation hybrid applications!?

[@RIPPERTON]

3M have been making dielectric coolants for over 30 years as used in RAAF AEW&C radar power electrics. I also used the same fluid in my electric race bike to cool the motors. And its not an oil, its more like water but has higher thermal conductivity rate than water.

[@ACiDFiRE]

I found this to be quite intriguing and have subsequently liked and subscribed to your channel. Please continue to produce such high-quality content. ❤

[@amazeddude1780]

Battery technology is one of those areas where incremental improvement is occurring at a phenomenal rate! I get the feeling there's going to be something truly revolutionary just around the corner; while the term 'disruptive' is used far too much, the sense of immanent change lurking nearby is very strong.

[@Hitsujiomeguruboken]

Das mit der Brücke ist echt interessant. Man sollte diese Technik auch bei allen Fahrradrahmen anwenden!

[@mikegrok]

One of the interesting immersive coolants is available for computer parts, boils at around 70C, so the coolant does not need to be pumped for cooling, just re-condenced from gas back to liquid, then re-added to the battery pack. They may not even need a compressor to accomplish this, just a radiator.

[@fragarena9910]

INCREDIBLE, didn't know bugatti was working on battery power/ev

[@Fayeburnmusic]

I appreciate their dedication to an analog gauge cluster! I hate digital gauges and they're the last thing I'd look for in a $1M+ hypercar.

8:10 - this does not make any sense, you cannot use percent like that with temperature. Maybe when working with K, but still... The second point (Temperature variation) is ok, but the maximum cell temperature is not 26% lower. It is 14 K.

[@WildBillCox13]

What's its heat generation- and cooling- like? Ah, you examined it. Sweet.

[@loiskimberleyplayer]

Another great video as always!

[@riba2233]

Another small correction, rimac cars don't use lifepo4 cells, they use liion cells made by molicel. For hybrid systems they use something completely different though, but not lto.

[@titanlurch]

In India they have developed a rapid charging system that injects a coolant into the battery pack while charging and removes it at the end of the charging cycle thus avoiding the extra weight in the vehicle.

[@TheDivergentDrummer]

Immersive cooling is such an obvious track. They have been using it for decades in distribution transformers. Those giant pole mounted transformer 'cans' are actually filled with oil to cool them.

[@ManyHeavens42]

One day we won't even use cars, Will all be Flying 🪽

[@pathfollower]

"I have not seen this on production vehicle before,.." A Bugatti hypercar is really stretching the definition of "production vehicle ".

[@Pr0toPoTaT0]

Dont hate me for skipping your ad ❤ video was too damn cool to not get right back to it

[@sebulva]

Thank you. Already created a hobbyist account with your sponsor. Regards from Mexico.

[@BlaxJakx]

The Bugatti X Rimac merger. The only EV & ICE partnership that works 😂

[@zman4444]

Literally not a problem we use brushless motors with rotors wrapped using Kevlar for almost 20 years. Absolutely common.

[@IAmLeutrimTopalli]

This just proves bugatti deserves to be in f1

[@jesuslovesyoujohn314-21]

Nice to see battery technology is still coming along. I am still hoping for something much better than lithium.

[@8lack8bird]

Interesting how immersion cooling being considered cutting edge in the ev industry, while in PC world it have been submerged from the 2000s.

[@ScrubsIsee]

Still waiting for the Physics bending. Cooling is a VERY Physics-based process …

[@human_isomer]

8:35 this NOVEC™(649 and 1230, depending on purity, and aka "dry water") is Perfluoro(2-methyl-3-pentanone), which is a PFAS, and its use is probably restricted, especially in Europe. They would have to look for something different here. Quoted from Wikipedia: "Novec 649/1230 is classified as a PFAS substance. In December 2022, 3M announced that it would cease production of all PFAS products by 2025, including Novec 649/1230.[14]"

[@kerryscott3287]

Great, let us know when you find out what they are actually using

[@dane1293]

The Rimac Nevera uses LMN battery chemistry. LiFePO4 would be one of the least likely types for a hypercar to use. The same goes for LTO, as although it has high power output as you mention, it has very low energy density

[@DavidOBrienComposer]

Really enjoying your videos 😊 I'm merely a spectator in the areas you cover as I don't have an engineering background but do find it all fascinating. This may be a very obvious question but is the heat captured by the cooling system recycled in any way?

[@NfectMedia]

the Bugatti Torbjorn, I kept hearing this the entire time

[@MrBrettAIR]

Sick video. I ride a Escapade Execute and that mf feels like a Bugatti 💪💪

[@h0wud0in1]

centrifugal force does NOT increase exponentially with velocity. it goes like the square...

[@jeffbrinkerhoff5121]

Dovetail shaped rotor slots with small end open would lock similar shaped magnets in tighter as rpm increased.

[@sahalin12345]

Yeah I remeber soviet era oil/electric heaters. I gues they worked on similar principle. A lot of energy grid high power tranformers are submerged in oil to stabilise temperature.

[@Ghryst]

advert ends at 5:40

[@TheLumberJacked]

Physics bending? It’s an expensive liquid cooled, exotic material wound brushless motor. Reality is good enough without trying to make it more fantastical than it already is since that feels quite insulting to the audience.

[@kylekleman]

A company called Kreisel has immersion cooling batteries in production today for boats and racing vehicles. Future John Deere products will also use them as Kreisel is owned by them.

[@SpeakerWiggin49]

3:41 Hey that's Pyeongtaek, South Korea! I've walked under that bridge on the river trail.

[@Peacelovemungbean]

What sort of pressures do these cooling fluids operate at? Do they suffer from "dead spots" in circulation under lateral loads?

[@Barskor1]

Sloshing as tthe EV corners?

[@AlanAshton]

Electric flight, specifically battery-electric flight, is not a possibility. The energy density is not there. That's not to say that a hybrid generator+electric motor is beyond the realm of possibility. People are fascinated and excited about flight and the idea of making electric airplanes, but I think that the better question to ask is, why not put the R&D dollars and effort into electrification of things that don't need to consume a portable and energy-dense energy source, and free that energy source for the use in airplanes? And, for those who are dead-set on making electric airplanes, I'd say to start with generator-electric hybrids and let the automotive industry solve the issues of energy density, range and safety.

[@RupertBruce]

The "dielectric fluid" seems like a no-brainer but surely even low conductivity materials have some electric field effect as well as phase-change optimization and good old specific heat capacity optimization

[@ynvch]

More important than "how" they achieve 24000 rpm is "why" they need the rotor to spin so fast.

[@Thesupperals]

This shit is going out of date. I can't wait to make my product! I'M STOKED

[@am74343]

There's one *gigantic* piece of technology all the EV car manufacturers are forgetting to look at: *TRAINS* ! Electric trains have... ELECTRIC MOTORS! And they have been using them for 140+ years! If you want efficiency and power, that's where you should begin looking.

[@jeebusk]

good video, well explained and interesting topics

[@tdplayert]

kudo's for not being an AI voice-over

[@luigicirelli2583]

I am so looking forward to supercapacitors with more energy density than current li-ion

[@Litoof]

next video: i bought a bugatti and disassembled it to see the electric motors

[@michiganengineer8621]

That immersive cooling is a great idea. Until the coolant is contaminated in some way, at which point your multi-million dollar Tourbillion goes up in flames. Remember, distilled water is non-conductive as well, as is pure mineral oil. Again, until almost ANYTHING gets dissolved in the fluid.

[@JobMoret]

Don't all dielectric fluids become conductive over time if flowing through metal components? How would one prevent this problem?

[@kimbleangus7321]

Replace the fluid every so often, probably.

[@geordiew2162]

Great Video! Thanks for sharing!

[@utube091116]

Lets hope this tech can benefit public transport 🤞

[@travisleith1146]

A rotor rotates, and a stator … statates? 1:43

[@timovdbroek]

A stator makes the rotor rotate

[@staomruel]

Title: ..bends physics... Script: ..seemingly bends physics..

[@gillbates999]

The electric power output depends on how fast you drain the battery, not how large (capacity) it is.

[@K-SHABAB]

Dark Matter Laughing in Corner😅🤣