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Haldex Traction is a manufacturer of intelligent all-wheel drive (AWD) systems, founded in Sweden. Since the invention of Gen I in 1998, the company produced several generations of products licensed to and customized for some major automotive brands, that in turn have marketed Haldex Traction AWD under different names.
XWD, an acronym for Cross-Wheel Drive and also known as Haldex Generation 4, is an all-wheel drive system designed by Haldex in partnership with Saab. [1] The XWD is a permanent all-wheel drive system, that can pre-emptively and continuously change torque distribution before wheel slip occurs. Saab Turbo X, the launch vehicle for Saab XWD
Haldex AB (originally Halda Fickurfabrik AB, then Svenska AB Bromsregulatorer, SAB), also known as Haldex Group, is a Swedish company operating in the commercial vehicle industry. Haldex focuses on brake products, air suspension systems and products to enhance safety for heavy vehicles.
Generally, Volkswagen would use Haldex Traction clutch system on their "4motion" transverse engined cars. For longitudinal engined cars, they would use a Torsen limited-slip differential-based 4WD system or lockable centre differential instead. [3]
The change to the Haldex system also changes the handling closer to a front-wheel drive car. Compared to the Torsen, the Haldex can direct torque more unequally to the front wheels (from 100:0 to 50:50 front-to-rear bias), thus providing a wider bias range than the 75:25 to 25:75 of the B5 Passat. Haldex is a reactive-type system, behaving as a ...
Volvo began offering a 4.4 L (4,414 cc) V8 engine in its large P2 platform automobiles in 2005. [6] [7] It was initially offered only for the Volvo XC90 [6] [7] but later found its way in the second generation Volvo S80, [5] and was mated to a six speed Aisin Seiki AWTF80-SC transmission of Japan also with a Swedish Haldex all-wheel drive (AWD) system.
cast aluminium alloy; four valves per cylinder, 16 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, toothed chain-driven double overhead camshaft (DOHC), continuous vane-adjustable variable intake valve timing, Audi variants have two-stage "valvelift" inlet valve lift variable control
It employs a revised (5th-generation) Haldex 4motion all-wheel drive system. In Australia, Japan, China, America and South Africa the Golf R engine is detuned to suit hotter climate conditions, from 198.5 kW (270 PS; 266 bhp) to 188 kW (256 PS; 252 bhp) and from 350 N⋅m (258 lbf⋅ft) to 330 N⋅m (243 lbf⋅ft). [citation needed]