System Operation: Operation

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2015 Jaguar XFR-S, 2015 Jaguar XFR, 2015 Jaguar XF, 2014 Jaguar XFR-S, and 2014 Jaguar XFR. However, it is still accessible from the selected car via links, so may be relevant.

Rotational input from the front driveshaft is passed via the input flange to the pinion shaft and pinion gear. The angles of the pinion gear to the crown wheel drive gear moves the rotational direction through 90°.

The transferred rotational motion is passed to the crown wheel drive gear, which in turn rotates the differential carrier. A shaft, which is secured to the carrier, rotates at the same speed as the carrier. The planet gears, which are mounted on the shaft, also rotate with the carrier. In turn, the planet gears transfer their rotational motion to the left and right sunwheels, rotating the left and right halfshafts.

When the vehicle is moving in a forward direction, the torque applied through the differential to each sunwheel is equal. In this condition both halfshafts rotate at the same speed. The planet gears do not rotate and effectively lock the sunwheels to the carrier.

If the vehicle is turning, the outer vehicle wheel will be forced to rotate faster than the inner vehicle wheel by having a greater distance to travel. The differential senses the torque difference between the sunwheels. The planet gears rotate on their axes to allow the outer vehicle wheel to rotate faster than the inner one.