Adaptive Dynamics

The latest generation of Adaptive Dynamics replaces Jaguar’s proven Computer Active Technology Suspension (CATS) with an even more sophisticated solution. Active damper tuning systems remove many of the compromises of a passive damping system – which must make a single choice between softer damping for a comfortable ride and firmer damping for more tautly controlled handling. CATS overcame that compromise with automatically switchable damping modes, adapting to the road and how the car was driven. But where CATS only offered two settings: ‘soft’ and ‘firm’, the new Adaptive Damping System in effect provides a continuously variable damping strategy between wide extremes, benefitting ride comfort, ultimate control handling and grip.

Its three primary functions are to control body vertical movement, roll rate and pitch rate. One hundred times a second, Adaptive Damping performs three critical functions: firstly, it analyses induced body motions and sets each damper to an appropriate level in order to maintain a constant and level body attitude – maximising control without compromising ride. Second, it also predicts the roll rate due to steering inputs and selectively increases damping forces to reduce roll – improving handling feel and driver confidence. And third, Adaptive Damping analyses fore and aft pitch rate due to throttle and braking inputs and again varies damping forces to reduce pitch – further improving comfort and control.

Additionally, Adaptive Dynamics improves ride quality by monitoring wheel position 500 times a second and automatically increasing damping rate as the suspension approaches the limits of its travel. Similarly it controls wheel ‘hop’ on uneven roads by varying damping to move any wheel out of its natural bouncing frequency.

From the cabin, the JaguarDrive Control™ interface allows the driver to interact with Adaptive Dynamics by selecting modes for different driving conditions and moods. In Dynamic Mode, Adaptive Dynamics increases body control for a sportier feel. Dynamic Mode also interacts with the engine ECU to give a more responsive accelerator pedal reaction and quicker gearshift responses.

Winter Mode was introduced on the XF and now makes its first appearance in the XK range, adding another element of dynamic subtlety. Where Dynamic Mode offers a more sporty feel, Winter Mode offers a more damped accelerator pedal response for progressive control in slippery conditions, with bespoke shift settings that delay and soften gearshifts, again for better control with low grip.

In keeping with its additional power and performance, the new XKR offers the most sophisticated dynamic control of all, with Active Differential Control and Adaptive Dynamics. The subtle control strategies of these functions can be managed through the JaguarDrive Control™, which allows the driver to change the settings of the Adaptive Dynamics system, which then works in tandem with the Active Differential Control (ADC) – an electronically controlled alternative to the traditional mechanical differential.