Automotive radar sensors enable at high driving speeds, high relative distances and especially at poor visibility the detection of traffic objects. The development and validation of radar-based driving assistance functions (ADAS) is performed along the vehicle development process in different steps. The final step involves vehicle tests on test rigs, test areas or on public roads.
This paper presents a vehicle-in-the-loop (ViL) test rig for the development and validation of radar-based ADAS functions. The major components of the ViL test rig consist of the street load simulation, the virtual driving environment and the novel radar-target-simulation (RTS) technology. Those components will be presented and its relevance for ViL tests explained.
The functionality of the RTS and the ViL test method has been proven within several measurement campaigns. Selected results including an example test scenario for the development and validation of a radar-supported adaptive cruise control will be presented and discussed.