Audi quattro AWD DIFFERENCES - Torsen vs Centre Differential vs Haldex vs Ultra
Автокөліктер мен көлік құралдары
Audi Quattro DIFFERENCES - Centre Differential vs Haldex vs Ultra HOW IT'S MADE the AWD Audi System. Audi A1 - A3 - A4 - A5 - A6 - A7 - A8 - Q2 - Q3 - Q5 - Q7 - R8 - 4wd DSG or S-tronc - Manual Gearbox
00:00 - Audi quattro intro
00:45 - Audi quattro Self-Locking crow-gear (Gen VI)
06:52 - Audi quattro ultra
09:46 - Audi quattro haldex
12:55 - Audi quattro Viscous Coupling (R8)
► AUDI A4 - A5 - A6 - A7 - A8 - Q5 - Q7: Audi quattro with self-locking crown-gear centre-differential anq torque vectoring
Audi debuted the 6th generation of quattro in the 2010 RS5. The key change in generation VI is the replacement of the Torsen Type "C" centre differential with an Audi-developed "Crown Gear" differential. With the new "Crown Gear" center differential, up to 70% of the torque can be applied to the front wheels while up to 85% can be applied to the rear wheels if necessary. The net result of this advance in quattro is the ability of the vehicle electronics to fully manage the vehicle dynamics in all traction situations, whether in cornering, acceleration, braking, snow or in any combination of these. This system was later adopted by the A7, latest generation of the A6 and A8.
► AUDI A1 - A3 - Q2 - Q3: Audi quattro with HALDEX
Starting from 1998, the Swedish Haldex Traction LSC unit replaced the viscous coupling. Haldex is used by Audi on the quattro versions of the Audi S1, Audi A3, Audi S3, and the Audi TT. It is also used by Volkswagen in the 4motion versions of the Mk4 and Mk5 generations of Volkswagen Golf, Volkswagen Jetta, and the Golf R32, Volkswagen Sharan, 6th generation VW Passat (also based on the A-platform) and Transporter T5. On the Audis, the trademark holds, and are still referred to as quattro, whereas the Volkswagens receive the 4motion name. The Škoda Octavia 4x4 and SEAT León 4 and SEAT Alhambra 4 also used Haldex LSC, being based on Volkswagen Group models. Curiously, the Bugatti Veyron also utilizes Haldex, though with separate transmission, PTU and front and rear axles.
► Audi R8: Audi quattro with Viscous Coupling
This 4WD system was used only on Volkswagen branded vehicles, and was never used on any Audi cars except Audi R8 model.
A viscous coupling installed instead of a centre differential, with freewheel mechanism to disconnect the driven axle when braking.
Normally a front-wheel drive vehicle (except Vanagon, see above). In normal driving conditions, 95% of torque is transferred to front axle. Because viscous coupling is considered to be "slow" (some time is needed for silicone fluid to warm-up and solidify), 5% of torque is transferred to rear axle at all times to "pre-tension" the viscous coupling and reduce activation time. The coupling locks when slipping occurs and up to near 50% of torque is automatically transferred to rear axle (front in Vanagon). In on-road conditions, the car will not move if one front wheel and one rear wheel lose traction.
The freewheel segment, installed inside the rear differential, lets rear wheels rotate faster than front wheels without locking the viscous coupling and preventing ABS from applying brakes to each wheel independently. Because of the freewheel, torque can be transferred to rear axle only when the vehicle is moving forward. For four-wheel drive to work when reversing, a vacuum-actuated "throttle control element" is installed on the differential case. This device locks the freewheel mechanism when in reverse gear. The freewheel mechanism unlocks when the gear-shift lever is pushed to the right, past the third gear. The freewheel is not unlocked immediately after leaving reverse gear on purpose - this is to prevent the freewheel from cycling from locked to unlocked if the car is stuck and driver is trying to "rock" the car by changing from first to reverse and back.
Disadvantages of this four-wheel drive system are related to actuation time of the viscous coupling.
When cornering under acceleration on a slippery surface, the rear axle is engaged with delay, causing sudden change in the car's behaviour (from understeer to oversteer).
When starting on a sandy surface, the front wheels can dig into the sand before all-wheel drive is engaged.
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Пікірлер: 101
In Your Opinion ... The BEST Audi AWD System is? COMMENT NOW and Vote Your Best AWD System
Having watched this video, I now feel like I know LESS about the various quattro systems
@paologiovacchini942
2 жыл бұрын
The same for me
Thanks for the description!
Torsen ofc
I wanted to know how the quattro system works. Thank you for putting this together.
I prefer Torsen system!
@harishajdarevic9038
3 жыл бұрын
Torsen is the best
@steel4428
2 жыл бұрын
@@harishajdarevic9038 please bro : Which is the diference between the torsen and audi ultra quatro ? And how is the best ?
Thanks for good video GBCP really unique intelligent system best of all times until now.
@GommeBlog
6 жыл бұрын
You are Welcome ... I hope You Enjoy and Subscribe my Channel
the BEST? TORSEN. all 3 diffs preferably. reliability is unbeatable, no wear, no electronics.
Torque vectoring on my 2019 sticks the car to the road like glue at the track.
More confused than ever. Need a video to explain each. Too many systems per video leaves me confused. And I don’t confuse easily.😂😂😂
@GommeBlog
5 ай бұрын
I understand how overwhelming it can be when there are too many systems covered in one video. I'll take note of your feedback and try to break down the information more clearly in future videos.
@colinashby3775
5 ай бұрын
@@GommeBlog thank you.subscribed
What kind of Torsten system does 4L generation Audi Q7 have? Anyway, I love how it drives in the winter with proper winter tires. It’s way fun with controlled rear end slide under full power. I don’t think my 2013 has too many electronic gizmos in the system.
@4x4.tests.on.rollers
2 жыл бұрын
Torsen C with 42/58 FR torque split. Unlike other torsen quattro systems, the one in Q7 has separate transfer case so it's not that nose heavy.
Torsen. They are loseing durabiliti with the electronic crap
@Amidat
4 жыл бұрын
they stopped using Torsen a while back... even the ones that aren't electronic are their own "self locking"
R8 system in this video is not a viscous coupling, as the video says, it is a electrohydraulic clutch system.
I love Audi but I live in Alaska where owning one of these would be a terrible idea. Boulders and 18-in potholes that routinely frequently cluster in your path in an ever-changing changing landscape, that can also feature up to a foot of water regularly driven through, without any kind of underbody protection or electronics that are insulated, they're just not practical here, furthermore there's no way to work on them if something breaks down anywhere out here, very sad.
@MrDenisio77
2 жыл бұрын
I think a better experience living in Alaska than drive an Audi...You havevto buy an Uaz 469. Saluti da Italia 🙋
@BMW_Z4idiot
Жыл бұрын
GET A UNIMOG if y'all live in Palinland
Anyone know about Audi A6 C7 2016 sedan 2.0 tdi 190 hp quattro S-Tronic. What type of torsen?
@4x4.tests.on.rollers
3 жыл бұрын
Torsen C.
Torsen!!
i have an audi a4 b9 2017 , 2.0 TFSI engine with 252hp quattro, CYMC engine. what kind of differential i have ? can u give me some links to see ?
@HardwareG33k
3 жыл бұрын
Torsen center diff. If you have the Quattro Ultra, there is an additional claw coupling which disengages the rear wheels under normal conditions to save fuel.
@sebrura
2 жыл бұрын
Quattro Ultra, i.e. not permanent quattro like with a torsen.
Can Drive Select control the Haldex? Like in dynamic mode does it force the Haldex to lock up?
@teleguy5699
2 жыл бұрын
I believe so. I know the offroad gives it permanent AWD.
@tfiresmith01
2 жыл бұрын
@@teleguy5699 I drive a 2019 Audi A3 Quattro
Anyone knowing what is the type of the quattro in my car ? It's Audi A4 B9 Allroad 2.0 TDI 190hp, S-Tronic 7 speed gearbox.
@SamuelVaran
5 ай бұрын
Could be the quattro ultra, not sure 100%
@plamenyovchev
5 ай бұрын
@@SamuelVaran nope. Mine is with torsen. GH1 code.
@SamuelVaran
5 ай бұрын
@@plamenyovchevthat’s great! What year is the car?
@plamenyovchev
4 ай бұрын
@@SamuelVaran 2017
Audi rs5 2018 or 2021 which deferential does it have?
@dogchainsaw3923
2 жыл бұрын
Torsen
Does the s4 b8 and rs4 b7 use a different system? If so what kind?
@lonewolf1300
4 ай бұрын
Well, it was 2 years ago, and there no response so far . A4b7 generation uses torsen, and i believe the b8 generation can use it too or the ultra. Depending on how was bought at the dealership
These models are second to none.
Horribly loud ana annoying soundtrack make this video difficult to watch and add nothing to the content.
So much expensive and breaking and wearing system instead od just working and service free torsen :D Lol.
Combine all the all wheel drive system technologies from every company in one car. It will be the perfect grip machine.
@TREXNODASH
2 жыл бұрын
The cAll it the Tesla 🤣
All audi awd’s mentioned in the video are not based on torsen differential.
Allroad C7 3.0bitdi?
I love the music!
is the 1st video explanation is torsen ?
@jacklondon9383
Жыл бұрын
No, it’s a crown gear differential, which has a similar principle, but it is not Torsen. The whole video doesn’t mention Torsen at all, which is quite strange.
Front quife + torsen + rear quife(or lsd)
Anyone know what center differential a 2015/B8.5 Audi A4 2.0T Quattro w/ 8 speed tiptronic transmission had/has?
@4x4.tests.on.rollers
4 жыл бұрын
2015 Audi A4 2.0T Quattro Sedan B8 automatic 8-speed (North America) - Torsen T3.
9:50 track ID?
Зелёный цвет это крутящий момент куда передаётся что ли
Does this also apply to related S and RS models?
@GommeBlog
6 жыл бұрын
YES ... Thanks for Your Comment !!
@ILKBNS
6 жыл бұрын
Actually it's pretty confusing, but the best I can tell from Audi web site the S4, for example, has the full time AWD I believe, were as the A4 has two versions 1 ultra and 1 non ultra, The ultra having less power, pretty sure it has the decoupling rear end, but not sure on the non ultra. From drivers perspective I definitely prefer the crown gear over trying to save fuel. I am betting the RS3 has crown gear as well.
@peterm3861
6 жыл бұрын
RS3 has engine transversely, so Haldex based AWD with 100/0 front rear distribution up to 50/50 only.
@Amidat
4 жыл бұрын
@@GommeBlog why does it seem the crown gear is only on a few RS models and not the rest? thought it was lighter and smaller...?
Whic car using pure torsen diferensial?
@ronaldvossen
4 жыл бұрын
I own a 1991 Audi S2, which relies purely on torsen. there are some others. Later on more electronics were applied, with mixed success.
@armanbogor100
4 жыл бұрын
@@ronaldvossen Okeh tank you, 4 ur information.
@TheHolan
2 жыл бұрын
hummer h1
@TheHolan
2 жыл бұрын
fiat campagnola
I’d hate to pay or fix that lol
@donteanderson6961
4 жыл бұрын
Flat4Fan I just had my haldex and rear diff replaced on my S3 it’s still in the shop. From what I know now I’m paying $2200 out of pocket with my deductible included. This was due to a discrepancy between the warranty and repair shop pricing. I want the work done at the dealership for peace of mind. My warranty company wanted to provide a used diff but the dealership refused to put in a used one. I would feel better if all parts were new so I went with the dealership. The kicker is the first repair shop I went to was a joke. The mechanic tried to give me advice on how my key ring had too many things on it and how that was bad for my car?? Then I let him know “hey it’s push to start”. Red flags everywhere! So I decided to pay the premiums for a nice 2020 Q5 loaner vehicle and a clean OEM repair for my 15 S3.
@donteanderson6961
3 жыл бұрын
Mini-ITX RiG yeah the warranty did cover it but the shop refused to put in used parts so I paid the difference
@donteanderson6961
3 жыл бұрын
Mini-ITX RiG the real total of all the work done was well over 8000$ but I only pained 2200$
@lucavangorkom9453
3 жыл бұрын
@@donteanderson6961 Interesting story. What actually went wrong with the diff?
Useless video.. Torsen isn't shown, you showed Crown Gear which is only used on S and RS models. Ultra which is used on most modern Audi for fuel economy. Haldex used in S3 & TT etc..
Super-AWC from mitsubishi is the best AWD, It doesn't burn power on breaks with torque vectoring, it has a better performance.
@Abhishek-150
5 жыл бұрын
Indeed
@tfiresmith01
2 жыл бұрын
The best all-wheel-drive system is found on the United States military Humvees!! I dare you to prove me wrong!
for torsen nothing 😢
No sport diff anymore?
@An.Individual
5 жыл бұрын
sport diff is the diff on the rear axle
This video says quattro transmits power through the wheels with the most grip, but my A4 just spins the wheels with least traction while the wheels *with* traction don't even move.
@TheMegaklub99
Жыл бұрын
Then your transfer box needs maintenance, it might be worn out
@dacasman
Жыл бұрын
@@TheMegaklub99 Funny you mention that. The transmission just blew a few weeks ago 😅
Eyesore video Unbearable
Congratulation! The most uninformative movie on the subject. Are you from Audi PR departement?
And now invent something that can disturb power from left to right because Quattro is the worst system that does(n’t) that. Maybe Subaru wil teach you a thing or 2.
@papercut1987
3 жыл бұрын
Well, suby doesn't do that either. STi's DCCD is a more adjustable centre-diff with front and rear LSD. As of I know, only Mitsubishi's S-AWC and Acura's SH-AWD push power left and right. There might be more system that does it.
@HardwareG33k
3 жыл бұрын
@@papercut1987 all LSD's distribute torque left and right depending on traction. Audi has the sport differential for example, which actively regulates this.
@kululv
2 жыл бұрын
your comment is totally wrong and uneducated. your subi system is pretty crud and outdated. they realized that too, thats why they upgraded a little DCCD. Welcome to the modern world
@antoniosadorra4961
2 жыл бұрын
the new mk8 golf r can do that
@tfiresmith01
2 жыл бұрын
@@antoniosadorra4961 The Golf R and the new RS3 have the Magna system instead of Haldex. It was the same system used on the Ford RS.
won't need all of this on EV lol
@estebanamador7601
5 сағат бұрын
If the EV uses open differential with one motor per axle, it will definitely be beneficial to have some torque transfer between sides, so there should go something that makes this same torque vectoring.
The Mitsubishi Active Yaw Control is even better than this.
@konstantinkennedy2244
3 жыл бұрын
Mitsubishi is the best, that's why they have fantastic sales volumes. They have dealerships everywhere in America
This is when thumbs down would be huge to have