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System Description

Most road accidents are rear-end collisions caused by distracted or inattentive drivers. For such accident scenarios vehicle manufacturer develop systems that warn the driver of an impending frontal collision and that assist the driver in the prevention. The maximum braking power of the vehicle is to be fully utilized, in some vehicles even if the driver does not brake itself. Such systems are grouped under the term "Autonomous Emergency Braking" (AEB). From 2014, the assessment of the AEB systems is included in the star rating from Euro NCAP, from 2016 the AEB pedestrian test will be included.


Test Description

VEHICO Objective-Testing-for-EuroNCAP-AEB-rating thumbTo test the AEB systems different accident scenarios has to be simulated with a test vehicle approaching a slower vehicle dummy (so-called "target"). The employed ADAC target is a special cushion, which is modeled by its appearance and its radar or lidar characteristics according to a real vehicle rear. Therefore it is detected by the AEB systems of the test vehicles as a real vehicle. The test vehicle can crash into the target, without causing any damage. The target may be used as a stationary obstacle. Moreover it is possible to pull the target with the help of the trailer coupling of a drawing vehicle in order to simulate end collisions with moving vehicles.

The following three test scenarios are used:

  1. test vehicle approaching at different speeds a stationary target
  2. test vehicle and the target are driving with different constant speeds, the speed of the test vehicle is greater than the speed of the target
  3. Test vehicle and target are driving with the same constant speed and at a specific distance to each other, then the target brakes with a defined deceleration

For a reproducible result, it is not only necessary that the velocities of each of the vehicles, the relative distance between the vehicles, the braking force of the test vehicle and the deceleration of the target are controlled precisely. In addition, it should be ensured during all tests, that the test and target vehicle always move on the same track in order that no lateral offset between the vehicles occurs. These conditions can only be fulfilled when both vehicles are driving automatically.

The recent EuroNCAP test specifications and the use of VEHICO robots for the testing was put in a nutshell by our CEO Dr. Helbig: "Objective Testing of Autonomous Emergency Braking Systems for the EuroNCAP AEB Rating".


Vehicle Equipment

VEHICO Typical-AEB-Robot-Configuration thumbThe described complex AEB tests can only be realized with the help of driving robots. The target and the test vehicles are equipt with a gas robot, brake robot and a steering robot. A typical configuration of VEHICO robots for EuroNCAP AEB testing is shown in the picture on the right.

The gas robot controls the vehicle speed and the relative distance between target and test vehicle. The brake robot in the test vehicle activates the brake pedal with a predefined braking action, while the brake robot is the target vehicle controls the deceleration of the target. Over the entire test duration the steering robots drive the vehicles along a predefined track. This ensures that the tested accident scenarios are always the same and that the test results are reproducible.


We support you with our versatile products and extensive knowledge on the implementation of automatic driving tests. Whether you want to control a pedal or steering wheel or even a complete unmanned test car, we offer you the ability to use functionality exactly where you need it. Simply contact us.

What customer say about us

"We had previously worked a lot with steering robots, but since we use a VEHICO Steering Robot, we have doubled the number of tested vehicles."


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