ZF vector differential

PetrolSmell
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ZF how does the ZFs vector differential work. This system gives more power to the outher wheel in a curve to make the car more agile For more information visit: www.petrolsmell.com This video is property of ZF

100 Comments

  • The idea is good but many parts mean a lot of mistakes and dear ones. This is my personal opinion . It lacks simplicity and effectiveness

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  • ok

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  • Excellent Completely Impressive

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  • They couldn't make it more complicated with more parts to break?

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  • Nas curvas, a movimentação das engrenagens, está ao contrário.

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  • I agree with those who say it looks complicated, but I disagree with those who think the faster-turning wheel is shown to be on the wrong side. Those who say this are focusing their attention on the outer part of the planetary sets, which are changing the torque output, rather than focusing on speed of the axle and wheel (also, the speed of the visible part of each clutch pack matches that of the part of the planetary set which increases in speed on the side facing the inside of the turn, so don't be fooled by that either). Focus on the speed of the axle itself on each side and you can get a better idea what's really happening. Start by looking at the axle ends within the differential itself. I wish they would have put visible markers on the wheels to make their rotational speed more obvious.

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  • A lot of shit. You assholes pay the bill. SMILE

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  • So no explanation? Just idiotic music? Fail. And engineers that don't know the outside moves fast than the inside? Double fail. If you don't even know this basic fact, you should not be designing diffs.

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  • look very nice, but if something go wrong, very expensive repair though.

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  • Who tells me what the name of the video differential is?

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  • Madness. Just put electric motors on each wheel and you're ready to go with 4wd, constant torque, minimum mechanical part transmission.

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  • Ring and pinion. Spider gearset. Planetary gearset. Clutch assembly. The efficiency losses must be stupid, insane complication

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  • враньё

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  • Se ve interesante pero no entendí bien cuál es la idea

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  • DIFERENCIAL REVOLUCIONÁRIO; Parabéns o Inventor !!!………Ótimo em curvas ou pistas Escorregadias !!!………Ótimo em TRAÇÃO nas Duas Rodas POSITIVA OK💡💡💡💡💡👏👏👏👏👏👍👍👍👍👍OK…………OK………………………

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  • German over-engineering at its' finest.

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  • OMG I actually thought it was two electric motors, one each side, and the clever bit was gonna be applying power, using the electric motors to apply more speed to one side than the other...silly me. It's one of the old established companies, ZF, they could care less. Exit stage left.

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  • 0:36 2 toothgears left starts to spin differend speeds even they seem to be locked together with the 3 smaller ones. What's this =D

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  • dude the alien music 😑

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  • I still think Torsen is better.

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  • Too complicated. Follow the KISS principle to be competitive. Limited slip differential is much simpler and effective.

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  • Over complicated -- More parts to wear out,  Sorry but I see no gain

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  • You can throw that idea in the bin.

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  • An electric car would not need anything complex like this. The motors would be in the wheels and no diff or even gearbox needed. Only fossil fuel cars need this crazy structure.

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  • wtf is up with that music?

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  • the music lol... Whats the music?!

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  • а зачем планертарки?

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  • The music is cancer to my ears

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  • Such a shitty music for an educational video.

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  • There is a huge flaw in your animation. Look at the bearing on your input drive shaft. The balls should only be moving at exactly 1/2 the differential speed between the inner and outer races.

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  • Seems like a good idea on paper but in reality it's just another way to over complicate a modern vehicle for something else to go wrong.

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  • what the background song is?

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  • Ищу задний мост для переделки Honda Gold s ob 1200под трайк буду рад предложением ,готов купить за нормальну цену

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  • Useless technology with little or no future applications. Electric motors on each drive wheel is THE future. Direct drive with NO transmission parasitic drag. All that is needed for differential drive is within the controller

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  • Super Videos

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  • DATS NOT A EAZY DIFFERENTIAL LOOK LIKE A VERY GENIOUS MECANIC 4 ME,I OPEN DIFERENTIAL B4 BUT NOT DAT BUSY,THANK U GOOD LEARNING ,SERVANT OF GOD RASTAFARI,WHY SCHOOL ,SCHOOL DONT TEACH NO SHIT.

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  • Nice cut away drawing but what is this differential doing in a minivan??

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  • Thais is way too complicated, better to just stick with the Mdiff and the stability control, proven to work past 200k miles with no problems.

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  • how can the 2 sun-gears in one planetary gear rotate at different speed, while the planet gears are equal? Shouldn't there be bigger and smaller sun gear and planet gears in one planetary set? i thought that's where the overspeed comes from

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  • Где купить

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  • What is the advantage over a Torsen differential?

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  • video ile animasyon ters orantılı hatalı yani ... (404 eror)

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  • As far as I understand this, they have kind of mounted an epiciclic reduction gear at each side of the main differential, that gears in into the final output shaft. When the friction locks the normally freespinning "driver" gear, the effect is that the epiciclic assembly acts like a reduction + differential gear, slowing down (as seen from the "main" differential )the final output shaft, but augmenting the torque seen by the outer wheel. There is a loss of power, I think minimal, in the transient state, when the freewheeler is neither locked neither allowed to go. Anyway, even if it isnthe simplest system to yave this in an I.C. car it is indeed quite complex, for something an electric car can have almost for free.

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  • more simply more better this one is very complicated its many parts to broke

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  • how about the friction loss?

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  • over engineered

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  • what a bizarre,  complicated, heavy, over-engineered way to  get different torque to each wheel, when ESP can do it so fast through individual wheel braking using the already existing brake system

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  • не правильно показано,наружнее колесо проходит больший радиус чем внутреннее!

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  • what's the benefit of this? except more $$ for repairs??

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  • Could anyone explain why during a turn, in the video, the outer wheel travels more slowly than the inner one?

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  • Four electric motors drive four wheels, just need to control motor speed. Simple and easy. ZF vector, too much BS made car easy break down, cost you pay more...

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  • Another one stupid engineering from germans. Too "less" stuff in it. "Wass-passiert-dann-Weltmaschine?"

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  • I get it,to break into a lower or higher range in turning instead of torque/no torque typical of basic differential....I like it but replace the clutch with hydrostatic conversion w/variable steer input. My question is in RWD only would it be substantive? Try FWD or AWD and you may have something there.

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  • like)

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  • Kind of like a Rube Goldberg machine - accomplishing a simple task through complex means.

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  • The clutches are locked not moving unless you are in a corner like posi traction, the clutches would not last in a situation shown here.

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  • looks like another thing to go and piece of shit itself and make your wallet run from your pocket

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  • Looks like a lot of stuff to go wrong and be stupidly expensive to repair? ...I don't really see how this is supposed to benefit over a normal LSD

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  • Actually this virtual video is nice but wrong. In both cases when it shows the vehicle turning, the inside wheel speed is higher than the outside one. In the real world it's the opposite.

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  • KISS!!

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  • Nice and expensive repairs.  Win win for manufacturer.  Little performance gains.

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  • It looks like you got the Johnson Rod crammed in the wrong hole

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  • 2 clutches on the output?  Sounds like it'll wear down quick.

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  • Can you imagine paying the dealer  to fix this.

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  • Too much total spinning inertia in the end probably. reduced reliability with twice as much machinery as already in a differential? Accura NSX concept accomplishes this with separate electric drive motors in hybrid addition to the ICE engine. probably many less parts in the drive line that way.

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  • maneiro

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  • just looks to me like they made something very simple, very complicated.

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  • I have worked at Acura since 2003, Since 2005 to 2013 never seen SH-AWD go bad yet

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  • The video is wrong, it shows the outside wheel travelling slower than the inner one !?

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  • Well, this all and great, and I do like it. Very clever. But it represents one thing I don't like: the constant rise in vehicle purchase cost and repair where the common man and woman can't afford them anymore.

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  • wrong turning section...

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  • Lot of moving parts to do what a simple Auburn limited slip has done for decades.

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  • Because this ZF system seems to be standard with the rear diff that vectors torque. Audi's is an option with the AWD, Acura's is standard.

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  • and I have worked on vehicles from the 50s with a similar diff setup only instead of using clutch packs they used brake bands. so I think the 1950s came before the 1980s and if audi were using a similar setup in the 80s why are you saying ZF copied Honda when Honda copied audi?

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  • Simple. ZF states: "This system gives more power to the outher wheel in a curve to make the car more agile" That's what Honda's and Audi's do. And if I'm not mistaken, 1980 and 2005 come before 2013.

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  • I am glad u can read but if u understood what you just typed then you would know that what you said is the long version of what I said. opposed brake steering has been around for years how do you think the steering on early tanks worked? I work on lots of machines for a living and have seen this set up many times over the years maybe in slightly different configurations but some almost identical to the axle above with slightly different actuators. so explain again how Honda own this old design.

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  • The early Acura SH-AWD system used a overdrive gear set or "Acceleration device" with individual clutch packs on each side of the diff that could engage and disengage independently to over drive a outside rear wheel. SH-AWD uses the VSA system to apply brakes to the inside wheels when cornering while the diff over drives the outside rear wheel to help rotate the rear and hug the corner. Honda has been playing with Torque Vectoring for years with the Prelude Type-SH which had ATTS.

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  • im sorry but this technology is a lot older than 2005 and acura did not invent it. all this is is an automatic gearbox with only 1 gear. they are called wet brakes which have been round for decades and are being used not to transmit power like an automatic gearbox but to effectively brake a drive shaft to aid cornering.

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  • terlalu banyak komponen...mengakibatkan buget naik.

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  • You said V tech. Never talk to me again. And everyone has Variable valve timing now, but not variable valve lift, and Honda was first to have the electronic control lift.

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  • but this design has nothing to do with acura. may be only in the final result but by different way. will you tell then that Porsche Variocam is a copy of V tech only because they achieve the same goals?

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  • I don't understand, where is the extra power coming from? Doesn't this show the outer wheel being geared down which would make it spin slower? Whats the point of the diff then, I must be missing something here.

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  • don't know who u are...don't know what is your job...but u should quit doing engeneering becouse this all video is wrong...ahahaha

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  • Wouldn't it be easier to use wheel hub motors and control the power of each wheel independently by a controller? less weight + less production expenditure?

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  • The original design has been on Acura SH-AWD cars since 2005! ZF just Stole the idea.. The system is reliable but the maintenance procedures are set by every 15,000miles or every year for changing the diff oil which cost around 80 bucks the gallon (Only needs 1) if you DIY the change.. If not stealership will charge you up to 200 bucks to change the oil diff.. A lot of owners never change it and still works like a charm.

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  • That SH-AWD diff copy? How Acura hasn't sued this guys?

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  • Are those servo motors actuating the clutches on each end of the differential? I presume that this system is electronically modulated by the ABS sensor system?

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  • están al reves

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  • Nice way to copy Acura's SH-AWD system that's been out since 2005.

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  • nice design, so you have a new type of limited slip differential. i wonder if this diff will perform or after 100k miles, or will need some expensive repairs. in my opinion if someone makes something better and more complicated, it have to be more reliable. if this system is gonna fail after 60k and require expensive repairs the in not advancing technologically but recede technologically.

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  • The inner helical cut gears are connected to the differential carrier and the ring gear. The outer helical gears are connected to the axle stubs. That should help some.

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  • OOOOOooooohhhhhhh,....... took about ten minutes of study, but I got it now.

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  • Problem with a lot of Japanese design. More complex more parts to fail

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  • Torsen is better

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  • Объясните в чем *баный смысл? Отличие от простого дифференциала?

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  • These videos are hard to wrap your head around seeing the whole process at once.. I'd love to sit in with the engineers that design these things. Better yet I'm just going to go back to school and get a mechanical engineering degree screw this

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  • لاى

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  • demonstration was unclear, my hamster is still sick.

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  • going to be a bitch to repair that pressure plate

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  • munto bom legal mesmo

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