Intelligent Emergency Braking

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IEB reduces the impact velocity if the Adaptive Speed Control Module (ASCM) determines that a collision is unavoidable, even with driver intervention. It is not designed to prevent accidents from occurring. Typical activation of IEB is approximately 0.8 seconds before impact. During this 0.8 seconds period the speed of the sensing vehicle is reduced, thus reducing the impact energy.

If the ASCM determines a collision is unavoidable, it signals the ABS . The ABS applies emergency brake pressure to all of the brakes. On vehicles without active seatbelts, emergency brake pressure is 50 bar (725 psi) maximum. On vehicles with active seatbelts, emergency brake pressure is 100 bar (1450 psi) maximum.

When IEB is initiated the ASCM also signals the Restraints Control Module (RCM) to fire the front row seatbelt retractors. For additional information, Refer to: SEATBELT SYSTEM

After the IEB function has activated, it is then disabled, as the vehicle is assumed to be damaged. After the vehicle has been repaired, the IEB function can be enabled again using the Jaguar Land Rover approved diagnostic equipment.

The IEB function operates down to a vehicle speed of 10 km/h (6 mph), and will function even when forward alert and adaptive speed control are switched off.

If the IEB feature is disabled for any reason, a related message is displayed in the message center.