Abstract
Car manufacturers spend quite a lot on the development of driver assistance systems and subsequently on autonomous driving functionality. To ensure the safety and reliability of these functions meet industrial standards it is necessary to verify and validate their functionality. While tests on the road are still the ultimate evidence of correct operation they are associated with huge efforts and risks. Therefore, they have to be complemented by other means like simulations and tests on specialised testbeds. For the latter the car’s sensors have to be stimulated in a way that they perceive a desired – but only virtual – environment. An important type of sensor in cars is the radar due to its various advantages. This article describes the development of a stimulator generating virtual radar targets in order to enable the testing of autonomous driving functions.
Highlights
Multiple different advanced driver assistance systems (ADAS) are implemented in modern vehicles
Since the autonomous driving functions (ADF) systems interact with the environment by their sensors it is necessary that these sensors “see” the intended scenario consisting of other cars, pedestrians and obstacles
After a general introduction of the involved concepts we focused on the automotive radar sensor and its stimulation
Summary
Multiple different advanced driver assistance systems (ADAS) are implemented in modern vehicles. Since the ADF systems interact with the environment by their sensors it is necessary that these sensors “see” the intended scenario consisting of other cars, pedestrians and obstacles Such a test environment is already arranged using a large hall with remotely controlled vehicles and dummies [5], [6], [7]. Further efforts are undertaken to provide the sensors with “virtual reality goggles” meaning that the environment exists only virtually in software but physical stimuli are given to the sensors in order to let the sensors think that this scenario is real Such an approach allows V&V tests to be performed on testbeds and is the idea behind the DrivingCube TM by AVL List GmbH (see Fig. 1) [9]
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