DEVELOPMENT AND VALIDATION OF A SAFETY ARCHITECTURE OF A WHEELED MOBILE DRIVING SIMULATOR

The safety architecture of the Wheeled Mobile Driving Simulator (WMDS) is not yet known. It has to cope with carrying subjects on an unbound motion base while providing safety for the users, the system, and the sur- roundings. The complexity of the safety architec- ture increases when compared to rail guided Driving Simulators (DS) since stop dampers cannot be provided for all possible impact angles and positions. A representative solution is devel- oped and validated. The validity of the safety architecture is analyzed by hardware testing. A representative WMDS is developed for this pur- pose. The introduced safety architecture is de- rived from a Failure Mode and Effects Analysis (FMEA) and a Fault Tree Analysis (FTA). The conducted tests validate the safety architecture with respect to the discharge process and the achieved mean deceleration during the emer- gency stop.