System Restrictions

The adaptive speed control system is only intended to provide enhanced speed control in certain restricted conditions. The following illustration shows circumstances where the adaptive speed control system may brake late or unexpectedly. The driver is required to intervene in these situations.

1. Driving on a different line to the vehicle in front.
2. Vehicles that merge into the same lane are only detected once they have moved fully into the lane.
3. On bends in the road there can be issues with detection of the vehicle in front when going into and coming out of a bend.
4. Moving around a stationary vehicle may cause uncertainty as to which vehicle is being followed.
5. A vehicle in front moving out of your lane may cause uncertainty as to which vehicle is being followed.

The system will detect but not react to the following:

• Vehicles in the oncoming lane
• Stationary vehicles
• Pedestrians
• Vehicles not in the same lane
• Some smaller motorcycles.

In follow mode, some situations may cause target ambiguities for the detection system. These situations include:

• The nearby presence of a third vehicle when driving on a line slightly offset to the target vehicle
• Vehicles edging into the lane ahead which are not detected by the system until they have moved into the radar beam.

On the approach to, or exit from a bend, a target vehicle may be lost or a new target acquired as vehicles ahead change their angular position with respect to the adaptive speed control module. On a straight road, if the sensing vehicle is in follow mode below its selected set speed, losing the target vehicle will cause the sensing vehicle to accelerate to this set speed. This acceleration is undesirable either on, or entering a bend when the target is suddenly lost, and in this situation the system inhibits the resumption of the set speed.