Mercedes adds brake intervention to Blind Spot Assist

Active Blind Spot Assist warns the driver if it detects a risk of collision when changing lanes. Short-range radar sensors housed on both sides of the rear bumper monitor the areas directly alongside and behind the car.

This process enables them to see if there is another vehicle in the next lane – in the so-called blind spot. In such situations, the system informs the driver by illuminating a red warning signal in the glass of the exterior mirror. If the driver fails to see this warning and indicates to change lanes, a warning signal sounds as well.

In an innovation from the latest stage of development, if the driver ignores warnings and the vehicle comes dangerously close to the next lane, Active Blind Spot Assist will intervene. Applying braking force to the wheels on the opposite side of the vehicle via the Electronic Stability Program ESP creates a yaw movement which counteracts the collision course.

The system intuitively deactivates as soon as the driver steers against the effects of the braking intervention or the vehicle accelerates.

If an accident can no longer be avoided in spite of correcting the direction, Active Blind Spot Assist can mitigate the consequences of a collision through course correction. Where the system detects vehicles or obstacles just a short distance away on the opposite side, it will adapt its braking intervention accordingly.

To do so, Active Blind Spot Assist also uses data from the front sensors for DISTRONIC PLUS proximity control.

Brake actuation to correct the course occurs between 30 and 200 km/h. The effect is limited to longitudinal and latitudinal deceleration of 2 m/s2. When ESP is in OFF mode, Active Blind Spot Assist is switched off. Visible warning in the exterior mirror is active up to a speed of 250 km/h.

Source: Daimler.

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