Encyclopedia:
Haldex
Haldex is a Swedish company manufacturing for example the Haldex
limited slip coupling used in vehicles with automatic all wheel drive systems to engage and disengage a secondary axle when needed.
Incidentally, among car fans (European mostly), a "Haldex" refers to the aforementioned differential system: its most prominent use is in all transverse engine 4x4 models of the
VAG group (
Audi A3 and TT,
Volkswagen Golf and Passat...), making them non permanent 4x4s, unlike longitudinal engine models (Audi A4, A6, A8) which use a
Torsen-like differential. However, its short reaction time (only a seventh of a wheel spin) amply makes up for its non-permanent AWD (like Torsen) setup.
Also noteworthy is that purists despise the fact that "low end" Audis equipped with the "Haldex system" bear the same name (
quattro) as their "greater" brethren using the Torsen differential: true, the original Audi Quattro coupe did use a Torsen differential - but then again, it had a longitudinal engine.
Haldex Traction
Haldex Traction is a part of the Haldex Group that is responsible for the manufactoring and marketing of the Haldex AWD system.
The Haldex AWD system is currently used in the following vehicle models:
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Volkswagen Golf 4motion
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Volkswagen Bora 4motion
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Volkswagen Beetle Rsi
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Volkswagen Passat 4motion
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Volkswagen Sharan 4motion
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Volkswagen Multivan 4motion
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Audi A3/S3 Quattro
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Audi TT Quattro
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Skoda Octavia 4x4
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Seat León*
Seat Alhambra*
Volvo S40 AWD
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Volvo V50 AWD
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Volvo S60 AWD
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Volvo S60R AWD
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Volvo V70 AWD
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Volvo V70R AWD
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Volvo XC70*
Volvo S80 AWD
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Volvo XC90*
Bugatti Veyron*
Ford Freestyle*
Ford Five Hundred*
Mercury Montego*
MazdaSpeed 6(This car shows the first iteration of a liquid-cooled center differential: earlier Haldex versions often lost the center diff clutchpacks due to fluid overheating)
External links
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http://www.haldex-traction.com/ http://www.haldex-traction.com/*
http://www.haldex.se/index_main.asp http://www.haldex.se/de:Haldex