Rear Drive Axle And Differential: Overview

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport, 2017 Land Rover Discovery Sport, 2016 Land Rover Discovery Sport, and 2015 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.

Vehicles without the active driveline system have a conventional mechanical rear differential. The rear differential has an integrated active on-demand coupling located on the driveshaft axis.

The rear differential operates in conjunction with the active on-demand coupling to provide controlled torque to the rear halfshafts. Torque is supplied to the active on-demand coupling and the rear differential from the Power Transfer Unit (PTU). For additional information, refer to: FOUR-WHEEL DRIVE SYSTEMS

The torque is controlled by the electro-hydraulic active on-demand coupling.

The full time intelligent system continuously varies the front and rear torque split to provide variable All Wheel Drive (AWD) torque when required.

The active on-demand coupling is mounted on the rear differential, between the rear differential and the driveshaft. The active on-demand coupling is a self-contained unit combining mechanical, hydraulic and electronic functions to distribute torque between the front and rear halfshafts with fully automatic control.