Although the 8HP features 2 more speeds than the
extremely successful 6HP, the dimensions have
remained unchanged and the weight was even
reduced by 3 percent to 89 kg (196 lbs.) including
oil.作者: 高飞 时间: 2013-8-29 09:43:32
The first DSG transaxle that went into production for the Volkswagen Group mainstream marques had six forward speeds (and one reverse),[6][7] and used wet/submerged multi-plate clutch packs[2][4] (Volkswagen Group internal code: DQ250, parts code prefix: 02E).[7][8] It has been paired to engines with up to 350 N·m (260 lb·ft) of torque,[6][7] and the two-wheel-drive version weighs 93 kg (210 lb). It is manufactured at Volkswagen Group's Kassel plant,[2] with a daily production output of 1,500 units.[6]
At the start of 2008, another world first,[6] an additional 70 kg (150 lb) seven-speed DSG transaxle[6] (Volkswagen Group internal code: DQ200, parts code prefix: 0AM)[8][9][10] became available. It differs from the six-speed DSG, in that uses two single-plate dry clutches (of similar diameter).[10] This clutch pack was designed by LuK Clutch Systems, LLC.[11] This seven-speed DSG is used in smaller front-wheel-drive cars with smaller displacement engines with lower torque outputs,[6][7][10] such as the latest Volkswagen Golf,[6][10] Volkswagen Polo Mk5,[10] and the new SEAT Ibiza,[7] due to it having a maximum torque handling capacity of 250 N·m (180 lb·ft).[6] It has considerably less oil capacity than the six-speed DQ250; this new DQ200 uses just 1.7 litres (0.37 imp gal; 0.45 US gal) of transmission fluid.[6]
This dual circuit lubrication is aimed at increasing overall reliability, due to eliminating cross-contamination of debris and wear particles.[13] It has a torque handling limit of up to 600 N·m (440 lb·ft),[7] and engine power outputs of up to 330 kW (450 PS; 440 bhp).[7] It has a total mass, including all lubricants and the dual-mass flywheel of 141.5 kg (312 lb).[7]作者: SilverFern 时间: 2013-8-29 09:56:54