Modern vehicles such as cars, trucks or buses are commonly equipped with safety devices and automated systems for reducing the risk of accidents. Examples of such devices and systems are parking sensors, blind spot monitors, lane keeping systems, systems for automatic cruise control with distance keeping, automated steering systems etc.
Many such systems utilize radar technology for detecting objects in the vicinity of the vehicle. An example of such radar technology is a so called side object detection (SOD) radar device configured to detect obstacles in the vicinity of the vehicle such that side collisions can be avoided.
Many of these devices are typically arranged in a bumper of the vehicle. As disclosed e.g. in US 2008/0315050, a blind spot radar sensor is mounted behind a bumper skin of a car on a side towards the rear of the car.
A problem with the type of arrangement shown in US 2008/0315050 is that if the bumper skin is subjected to a force, for instance being exerted upon the car backing into an obstacle, the bumper skin will be pressed in a direction towards a body of the vehicle and may even break and the radar sensor arranged behind the bumper skin is likely to be damaged, potentially irreparably.