Animation: Adaptive cruise control

Animation: Stop and Go

Adaptive cruise control.

Adaptive cruise control* makes the driver's job easier on motorways and major roads. If the adaptive cruise control detects a slower vehicle in front, it automatically reduces the speed of the coach until it is at the desired safe distance (preset by the driver) from the vehicle in front. That distance is then maintained by the adaptive cruise control. To this end, the area in front of the bus is scanned at 50-millisecond intervals by a distance sensor, which uses three radar beams to measure the distance to and relative speed of the vehicles in front at a maximum distance of 200 m.

The adaptive cruise control measures the relative speed to an accuracy of 0.7 km/h. If there is no vehicle in front, it works like a conventional cruise control system. The adaptive cruise control is of assistance to the driver above all in medium to dense traffic on major roads and takes control of the vast majority of adaptive braking tasks.

Deceleration is limited to around 20 % of the maximum braking force.The safe distance maintained by the adaptive cruise control is speed-dependent and can be given as a percentage of the speedometer reading. In the basic setting, for example, the adaptive cruise control maintains a distance of around 60 % of the speedometer reading. The driver can change this setting up or down in defined increments.

The centrepiece of the adaptive cruise control is a proximity regulating radar system mounted in the centre of the vehicle, which continuously switches backwards and forwards between three radar beams. These are emitted by the system and aligned to monitor the left, right and centre lanes.

* optional equipment