BMW 7 Series: Introduction

Active Blind Spot Detection is a new BMW system. It is being introduced for the first time in the F01/F02 7 Series. The system is designed to assist the driver in making lane change maneuvers by monitoring traffic at the rear and sides of the vehicle. Using two radar sensors it detects vehicles traveling in the rear and along side our vehicle and warns the driver of the position of any unseen vehicles around him traveling in his "Blind Spot".

Fig. 77: Identifying Active Blind Spot Detection System On BMW

ACTIVE BLIND SPOT DETECTION SYSTEM DESCRIPTION CHART

1. Fast approaching vehicle on the left-hand neighboring lane
2. Vehicle in the left-hand neighboring lane travelling at the same speed
3. Your own vehicle, with the intention of changing lanes to the left
4. Blind spot area (left/right)
5. Vehicle in the right-hand neighboring lane travelling at a faster speed
6. "Lane change zone"

The active blind spot detection system can detect traffic situations that could be dangerous if your vehicle changes lanes. The driver is informed and warned in two stages.

These kinds of traffic scenarios arise, for example, when distant vehicles rapidly approach from behind. They are then in the "lane change zone" shown in the graphic.

These kinds of situations are difficult for the driver to judge, especially after dark. The radar sensors work completely independently of the light conditions.

A second danger can arise if other vehicles are in the blind spot area. The driver can only be aware of them if he is particularly careful and cautious. However, If he has a lapse of attention, he may not see vehicles in this area.

The radar sensors of the active blind spot detection system detect other vehicles in the neighboring lanes right up to about the middle of your own vehicle. The system can therefore offer the driver valuable assistance in this situation as well.

The first stage of detection is called "information" and it is provided as soon as the system is switched on and a hazardous lane change situation is present. The information is provided by activating warning lights in the door mirrors.

If the driver intends to make a lane change and uses the turn signal stalk to indicate this, a second, more intense stage will then be issued, the "warning".

The corresponding warning light then flashes with high intensity and the steering wheel starts to vibrate. The driver must cancel the lane change and if necessary steer back into his own lane to avoid a dangerous situation.

NOTE: The US marketing term for Lane Change Warning System (SWW) is Active Blind Spot Detection. These two systems are one and the same and are not to be confused with Lane Departure Warning.

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