Adaptive Speed Control

WARNING: The adaptive speed control system is not a collision warning or avoidance system. At all times the driver must be prepared to intervene to control the vehicle speed. Adaptive speed control operation is similar to the standard speed control system for engaging, suspending and resuming speed control.

The main differences between the 2 systems:

The adaptive speed control remains engaged below 32 km/h (20 mph).
The adaptive speed control uses the brakes to slow the vehicle, to halt if necessary.

The adaptive speed control can be suspended by operating the 'Cancel' switch, or the brake pedal. It can be engaged again by operating the 'RES' switch once the vehicle speed is above 10 km/h (6 mph).

The adaptive speed control system utilizes the following main components:

Adaptive Speed Control Module (ASCM)
Right steering wheel switchpack
Powertrain Control Module (PCM)
Electric Power Inverter Converters (EPICs)
Anti-lock Brake System (ABS) control module and Brake Booster Module (BBM)
Adaptive speed control warning indicator - in the Instrument Cluster (IC)
Forward alert warning indicator.

The adaptive speed control system uses a forward looking radar sensor, integrated into the ASCM. The radar sensor scans the road ahead and looking for objects that are moving at a different speed to the actual vehicle speed. When a target is identified, the adaptive speed control system will monitor the time gap between itself and the target vehicle. When the gap falls below a set driver selected level, the adaptive speed control system will intervene until the correct gap is attained. The adaptive speed control system slows the vehicle by adjusting the phasing of the high voltage Alternating Current (AC) provided by the EPICs and/or applying the brakes. The driver can chose between 4 gap settings, 0.8, 1.3, 1.8 and 2.3 seconds.

Adaptive speed control is active when the vehicle is moving. Adaptive speed control only functions when a set speed is entered via the operation of the 'SET+' switch.

The adaptive speed control system only intervenes with the set speed:

If the adaptive speed control system detects a slower target vehicle in the host vehicle's path.
If the calculated time gap will be breached.

When the ignition is on the ASCM is powered up but no radar transmissions are emitted until the vehicle is in motion.