Share
VIDEOS 1 TO 50
Torsen Differential, How it works ?
Torsen Differential, How it works ?
Published: 2014/11/07
Channel: Learn Engineering
Torsen Limited Slip Differential - Explained
Torsen Limited Slip Differential - Explained
Published: 2013/01/23
Channel: Engineering Explained
Diferencial Torsen (Autoblocante) / Self-locking Torsen Differential
Diferencial Torsen (Autoblocante) / Self-locking Torsen Differential
Published: 2010/12/13
Channel: El Patilla de Cadi
Torsen Movie
Torsen Movie
Published: 2009/01/12
Channel: smellsofbikes
Torsen LSD - Torque Transfer - Explained
Torsen LSD - Torque Transfer - Explained
Published: 2013/01/30
Channel: Engineering Explained
Quattro - test Torsen
Quattro - test Torsen
Published: 2007/12/09
Channel: krolboys
Torsen Differential B5 S4
Torsen Differential B5 S4
Published: 2014/12/30
Channel: Supra0809
Jak dziala mechanizm rożnicowy (dyfer) ? / Haldex vs Torsen
Jak dziala mechanizm rożnicowy (dyfer) ? / Haldex vs Torsen
Published: 2017/02/08
Channel: Miłośnicy czterech kółek -zrób to sam
Torsen vs AWD
Torsen vs AWD
Published: 2015/03/29
Channel: Виталий Ж
UAZ military axles from TARMOT 4x4 with torsen and CTIS system
UAZ military axles from TARMOT 4x4 with torsen and CTIS system
Published: 2016/11/09
Channel: TARMOTTV
différentiel à glissement limité torsen
différentiel à glissement limité torsen
Published: 2011/03/15
Channel: NismoAE86Japan
Quattro vs AWC - Audi  vs Mitsubishi -  4x4 test on rollers - Torsen vs EMCD
Quattro vs AWC - Audi vs Mitsubishi - 4x4 test on rollers - Torsen vs EMCD
Published: 2015/10/02
Channel: duszaniespokojna
Torsen LSD Is The Difference.
Torsen LSD Is The Difference.
Published: 2015/03/07
Channel: The Saturday Morning Meeting
Torsen differential working
Torsen differential working
Published: 2012/10/21
Channel: CAD Gill
Teeter-totter, flaw of the Torsen LSD
Teeter-totter, flaw of the Torsen LSD
Published: 2012/11/12
Channel: Aj Maxey
Torsen Differential Upgrade! | Reborn Turbo Miata Build #12
Torsen Differential Upgrade! | Reborn Turbo Miata Build #12
Published: 2016/11/22
Channel: GearHeads
Diferencial Torsen
Diferencial Torsen
Published: 2015/11/13
Channel: Roberto Villagrán
3000GT testing SCE torsen center differential on snow
3000GT testing SCE torsen center differential on snow
Published: 2015/01/25
Channel: Unl0gic
Explicació Torsen
Explicació Torsen
Published: 2013/11/07
Channel: PanadesAlbert
Torsen Differential - Audi Emotion Club AUDIclopedia
Torsen Differential - Audi Emotion Club AUDIclopedia
Published: 2010/04/28
Channel: AudiEmotion
THORSEN vs MB14 | Grand Beatbox LOOPSTATION Battle 2016 | SEMI FINAL
THORSEN vs MB14 | Grand Beatbox LOOPSTATION Battle 2016 | SEMI FINAL
Published: 2016/04/04
Channel: Swissbeatbox
2013 Scion FR-S | Torsen® Limited Slip Differential Explained
2013 Scion FR-S | Torsen® Limited Slip Differential Explained
Published: 2012/06/18
Channel: Scion
2015-2017 Mustang Ford Racing 8.8" 34 Spline Torsen Differential
2015-2017 Mustang Ford Racing 8.8" 34 Spline Torsen Differential
Published: 2015/08/21
Channel: CJ Pony Parts
Custom 3D printed LEGO TORSEN differential
Custom 3D printed LEGO TORSEN differential
Published: 2014/12/16
Channel: bricked brain
Das Torsen Differential, CATIA V5 Rekonstruktion
Das Torsen Differential, CATIA V5 Rekonstruktion
Published: 2014/10/08
Channel: manuelpue
Torsen-Differenzial-Einbau Defender I 4x4 Passion #05
Torsen-Differenzial-Einbau Defender I 4x4 Passion #05
Published: 2017/03/23
Channel: 4x4passion - Offroad, Overlanding, Outdoor
Miata torsen differential swap - and first tests
Miata torsen differential swap - and first tests
Published: 2015/07/23
Channel: Moritz F
Putting together the broken Torsen differential AUDI V8 4.2 `93 AXZ
Putting together the broken Torsen differential AUDI V8 4.2 `93 AXZ
Published: 2017/01/13
Channel: Moto Wermar
Mazda MX5 Build: Fitting An Torsen LSD
Mazda MX5 Build: Fitting An Torsen LSD
Published: 2016/02/12
Channel: Cafe Sociiety
Toyota Torsen Limited Slip Diff
Toyota Torsen Limited Slip Diff
Published: 2017/01/01
Channel: That Car Channel
Torsen Limited Slip Differential
Torsen Limited Slip Differential
Published: 2017/03/04
Channel: The Saturday Morning Meeting
Maturski rad TORSEN DIFERENCIJAL
Maturski rad TORSEN DIFERENCIJAL
Published: 2015/06/16
Channel: Marko Azinovic
TorSen t-2.avi
TorSen t-2.avi
Published: 2011/03/31
Channel: Gabriel Mura
Smontaggio Torsen PM Tuning 180 su Zip Sp 172cc con Malossi Maxi Team
Smontaggio Torsen PM Tuning 180 su Zip Sp 172cc con Malossi Maxi Team
Published: 2017/03/19
Channel: ZipSp KawaAlien
¿MAGDYEL UGAZ Y CRISTIAN TORSEN SON LA NUEVA PAREJA DEL MOMENTO?
¿MAGDYEL UGAZ Y CRISTIAN TORSEN SON LA NUEVA PAREJA DEL MOMENTO?
Published: 2017/05/18
Channel: EspectaculosPerú
PENKYX vs THORSEN  |  Grand Beatbox LOOPSTATION Battle 2017  |  1/4 Final
PENKYX vs THORSEN | Grand Beatbox LOOPSTATION Battle 2017 | 1/4 Final
Published: 2017/03/27
Channel: Swissbeatbox
Torsen differential AUDI A6 C7 ALLROAD
Torsen differential AUDI A6 C7 ALLROAD
Published: 2015/04/04
Channel: Jarosław Wojdyła
Das Audi Torsen-Differential in seiner Wirkung
Das Audi Torsen-Differential in seiner Wirkung
Published: 2012/06/29
Channel: Bjoern Habegger
Torsen Audi Test Mittel + Hinterachsdifferenzial Audi 200 quattro 20v Doppeltorsen
Torsen Audi Test Mittel + Hinterachsdifferenzial Audi 200 quattro 20v Doppeltorsen
Published: 2012/02/15
Channel: literschwein
1999 Mazda Miata NB (100% Stock) donuts w/ torsen LSD
1999 Mazda Miata NB (100% Stock) donuts w/ torsen LSD
Published: 2015/04/10
Channel: Max T
Miata Drift ,Torsen diff , FSO factory,
Miata Drift ,Torsen diff , FSO factory,
Published: 2017/05/25
Channel: Arkadiusz Arkadiusz
Audi Torsen Differential
Audi Torsen Differential
Published: 2014/06/03
Channel: Alex Lutz
2003 Mustang GT wheel spin with new  Torsen T-2R limited slip differential
2003 Mustang GT wheel spin with new Torsen T-2R limited slip differential
Published: 2014/05/12
Channel: James Ray
OVERKILL AWD - LEGO® MOC with 3D-printed parts, Torsen diffs, CVT
OVERKILL AWD - LEGO® MOC with 3D-printed parts, Torsen diffs, CVT
Published: 2015/06/11
Channel: Shadocko
2/3 Torsen T2 Install How-To
2/3 Torsen T2 Install How-To
Published: 2008/12/30
Channel: Matt Ellermets
TORSEN LSD
TORSEN LSD
Published: 2015/10/29
Channel: 배은호
JL Torsen 2
JL Torsen 2
Published: 2015/11/30
Channel: miataboxes
How to Time a Torsen Diffential
How to Time a Torsen Diffential
Published: 2013/01/22
Channel: Eric Stanistreet
NA Miata Spinout - Torsen LSD - 2nd gear
NA Miata Spinout - Torsen LSD - 2nd gear
Published: 2012/08/20
Channel: JebbFilm
Lego Torsen Style Differential
Lego Torsen Style Differential
Published: 2012/01/29
Channel: Peachezz131
NEXT
GO TO RESULTS [51 .. 100]

WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Torsen differential from an Audi quattro

Torsen Torque-Sensing (full name Torsen traction) is a type of limited-slip differential used in automobiles.

It was invented by American Vernon Gleasman[1] and manufactured by the Gleason Corporation. Torsen is a contraction of Torque-Sensing. TORSEN and TORSEN Traction are registered trademarks of JTEKT Torsen North America Inc (formerly Zexel Corporation, formerly Gleason Power Systems). All Torsen differentials have their origin in the Dual-Drive Differential that was invented and patented by Gleasman in 1958.

Use[edit]

Torsen differentials can be used in one or more positions on a motor vehicle:

  • center — used to apportion appropriate torque distribution between front and rear axles on an all-wheel drive vehicle.
  • rear — used to apportion appropriate torque distribution between left and right sides in rear axles. This may be on either a rear-wheel drive or four-wheel drive vehicle.
  • front — used to apportion appropriate torque distribution between left and right sides in front axles. This may be on either a front-wheel drive or four-wheel drive vehicle.

A four-wheel-drive vehicle, for example, may use either one, two, or three Torsen differentials.

Types[edit]

As of 2008, there are three types of Torsen differentials.

  1. The original Torsen T-1 (Type A) uses crossed axis helical gears to increase internal friction. The Type I can be designed for higher torque bias ratios than the Type II, but typically has higher backlash and the potential for Noise, Vibration, and Harshness (NVH) issues, and requires a precise setup/installation.
  2. The later Torsen T-2 (Type B) uses a parallel gear arrangement to achieve a similar effect. There is also a specialist application of the T-2, known as the T-2R (RaceMaster).
  3. The latest Torsen T-3 (Type C) is a planetary type differential, in that the nominal torque split is not 50:50. The Type C is available as single or twin version; the Torsen twin C differential has front and center differential in the same unit.[2]

The Torsen T-3 is currently employed as the centre differential in all non-Haldex Traction Audi models with a ZF-sourced automatic transmission Quattro four-wheel drive, such as: Audi A6, Audi A7, and Audi Q7. Audi uses a mechanical "Crown Wheel" centre differential for all longitudinal implementations using dual-clutch transmissions, such as the 2013/14 S4/RS4. Alfa Romeo used a Torsen C twin differential in the Alfa Romeo 156 Crosswagon Q4 and also in the 159, Alfa Romeo Brera and Spider Q4 models. Also, Toyota uses a Torsen T-3 in the center differential of the 4Runner Limited, FJ Cruiser 6-speed manual, Land Cruiser and Lexus GX470, with manual locking feature, and General Motors used a Torsen T-3 center differential in the transfer case of the Chevrolet TrailBlazer SS and Saab 9-7X (Aero model only).

Behaviour of Torsen differentials[edit]

The Torsen differential works just like a conventional differential, but can lock up if a torque imbalance occurs, the maximum ratio of torque imbalance being defined by the Torque Bias Ratio (TBR).[3] When a Torsen has a 3:1 TBR, that means that one side of the differential can handle up to 75% while the other side would have to only handle 25% of applied torque. During acceleration under asymmetric traction conditions, so long as the higher traction side can handle the higher percentage of applied torque, no relative wheelspin will occur. When the traction difference exceeds the TBR, the slower output side of the differential receives the tractive torque of the faster wheel multiplied by the TBR; any extra torque remaining from applied torque contributes to the angular acceleration of the faster output side of the differential.

The TBR should not be confused with the uneven torque-split feature in the planetary-type Torsen III. The planetary gearset allows a Torsen III center differential to distribute torque unevenly between front and rear axles during normal (full traction) operation without inducing wind-up in the drivetrain. This feature is independent of the Torque Bias Ratio.

Torsens in front and/or rear axles[edit]

When attempting to turn with a torque sensitive differential, the outer wheel will need to rotate quicker relative to the differential, and the inner wheel will rotate slower than the differential. Friction in the differential will oppose motion, and that will work to slow the faster side and speed up the slower/inner side. This leads to asymmetric torque distributions in drive wheels, matching the TBR. Cornering in this manner will reduce the torque applied to the outer tire, leading to possibly greater cornering power, unless the inner wheel is overpowered (which is easier to do than with an open differential). When the inner tire (which has less traction due to weight transfer from lateral acceleration) is overpowered, it angularly accelerates up to the outer wheel speed (small percent wheel spin) and the differential locks, and if the traction difference does not exceed the TBR, the outer wheel will then have a higher torque applied to it. If the traction difference exceeds the TBR, the outer tire gets the tractive torque of the inner wheel multiplied by the TBR, and the remaining applied torque to the differential contributes to wheel spin up.

When a Torsen differential is employed, the slower-moving wheel always receives more torque than the faster-moving wheel. The Torsen T-2R RaceMaster is the only Torsen to have a preload clutch. So, even if a wheel is airborne, torque is applied to the other side. If one wheel were raised in the air, the regular Torsen units would act like an open differential, and no torque would be transferred to the other wheel. This is where the parking brake "trick" can help out. If the parking brake is applied, assuming that the parking brake applies even resistance to each side, then the drag to the airborne side is "multiplied" through the differential, and TBR times the drag torque is applied to the other side. So, the ground side would see (TBR X drag torque) minus drag torque, and that may restore motion either forward or in reverse. In Hummer/HMMWV applications, there are both front and rear Torsen differentials, so the use of the main brakes will operate this "trick" on both axles simultaneously.

Torsen users[edit]

Torsen differentials are used in many of the various Audi Quattro models, excluding the A3 and S3 and TT, which have transverse-mounted engines and use Haldex Traction 4WD systems.

It is also used in the third- and fourth-generation Toyota Supra (Optional) and third-generation Toyota Soarer, the B5 platform revision of the Volkswagen Passat 4motion (based upon the Audi A4), Mazda MX-5/Miata 1994 to 1995 have a Torsen Type I and late 1995 to 2002 models have a Torsen Type II, the 2002-2003 model year of the Nissan Maxima SE 6 speed manual, the Honda S2000, and 1999-2002 s15 Nissan Silvia spec r. The Lancia Delta Integrale, the Peugeot 405 T16, as well as the 1999-2002 model Pontiac Firebird and Chevrolet Camaro, had a Torsen differential. Rover group fitted Torsen type 1, and later type 2, units to their range of high performance front wheel drive turbo models (220, 420, 620ti, and 800 Vitesse). The use of the Torsen differential was preferred by Rover group; it is much better at controlling wheel spin on front wheel drive vehicles than electronic systems, which only reduce engine power and therefore performance.

The Humvee uses two Torsens, front and rear, with a normal manually lockable center differential (NVG242HD AMG transfer case) in the center.

Other users of the Torsen limited-slip differential include the Toyota 86 and the Subaru BRZ, both released in 2012.

The first Ford company vehicle to use a Torsen differential was the 2002 Ford Ranger FX4, renamed in 2003+ years to FX4 Level II, all of which used T-2R in the rear differential only. Starting in 2012, the Ford F-150 SVT Raptor uses a front Torsen differential and the Ford Mustang Boss 302 uses a rear Torsen differential.

AMG offered Torsen differentials as an option as early as 1988 for new as well as for retrofitting for 107, 116, 123, 126 series Mercedes Benz cars.

Toyota Altezza (sold in U.S. and Canada as Lexus IS200 and IS300) came with a torsen differential. For Lexus models it was included with all models with manual transmission, optional factory equipped with automatic transmission. The Toyota Altezza was standard on all manual transmission SXE10 models (with the 5th-generation Beams 3S-GE engine and J160 6-speed manual transmission).

Torsen applications[edit]

Center[edit]

Center and rear[edit]

Audi i8

Front and rear axles[edit]

Front axle only[edit]

Rear axle only[edit]

References[edit]

  1. ^ "Inventor Of Automotive Technologies - Vernon Gleasman's Legacy". theautochannel.com. Retrieved 2008-05-17. 
  2. ^ "Alfa Romeo Brera". autozine.org. Retrieved 2008-05-17. 
  3. ^ Nice, Karim (2000-08-02). "Howstuffworks.com page on Torsen Differentials". Auto.howstuffworks.com. Retrieved 2011-08-05. 
  4. ^ http://jalopnik.com/meet-the-mitsubishi-pajero-evo-the-last-forgotten-homo-1704009601

External links[edit]

Disclaimer

None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license