Construction

CONSTRUCTION

CENTER DIFFERENTIAL ASSEMBLY




The center differential is a compound planetary gear set without internally-toothed gears. Input torque is transmitted to the 1st sun gear of the center differential, and from the 1st sun gear the torque is distributed through the 1st pinion to the carrier (output element of front wheel side), and to the 2nd sun gear (output element of rear wheel side) at a certain ratio.

The compound planetary gears use helical gears for quiet operation and strength. The four pinions are arranged to ensure the best motion balance during operation.

MULTI-PLATE CLUTCH (LSD)




The transfer's differential action limiting device (LSD) consists of a piston that press together the wet multi-plate clutch to generate differential action limiting force.
The rear drive shaft has drilled oil passages for lubrication of multi-plate clutch and extension bushing and ball bearing in it.

TRANSFER HYDRAULIC PRESSURE CONTROL UNIT
The transfer hydraulic control unit consists of the transfer linear solenoid installed in the transmission hydraulic control valve assembly and the transmission hydraulic control valve.

The transfer linear solenoid controls the transfer pilot pressure in accordance with the differential action limiting force determined by the TCM based on driving and road conditions, and the transfer hydraulic control valve regulates the line pressure into transfer pressure in accordance with the transfer pilot pressure.

The transfer pressure is sent through the passages formed in the transmission case and extension case to the clutch piston chamber.