Santa Fe I 2.7V6, 2.0 diesel 2001-2006(Edit)
Full-time all wheel drive. Developed by Steyr-Daimler-Puch. A viscouse coupling locking planetary differential inside the front transaxle splits the drive torque equally between the front wheels, and 60/40 between the front and rear axles.
Figure: Hyundai Santa Fe I Steyr-Daimler-Puch full-time all wheel drive system
Figure: Hyundai Santa Fe 2001-2006 planetary center differential
Figure: Hyundai Santa Fe 2001-2006 rear differential
Santa Fe I 3.5V6 2002-...(Edit)
Automatic all wheel drive. The BorgWarner TorqTransfer System ITM-I (interactive torque management I). The system uses electronic sensors and microcomputer controls to sense slippage in a vehicle's front wheels and automatically transfers power to the rear wheels. Then, when the front wheels are no longer slipping, the system reduces or eliminates power to the rear wheels.
The reduced slippage increases efficiencies that enhance vehicle handling and traction and improve fuel economy. The ITM-I can work with other systems such as antilock brake systems and electronic stability programs to further enhance traction and stability.
SantaFe II 2006-..., Tuscon 2004-2009(Edit)
Automatic all wheel drive. The Borg Warner ITM 3e, an electromagnetic clutch-type system that sends 95% of the power to the front wheels—until they encounter a low traction situation, when up to 50% of the power can be apportioned rearward.
Figure: Hyundai SantaFe II/Tuscon electromagnetic clutch attached to the rear differential case.
Figure: Hyundai Tuscon rear differential
Figure: Hyundai Tuscon transfer box
Terracan(Edit)
Figure: Hyundai Terracan front axle disconnect system
Figure: Hyundai Terracan front differential
Figure: Hyundai Terracan rear differential
Figure: Hyundai Terracan transfer box
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