Rollover Sensing (ROSE)

In order to prevent fatalities or serious injuries caused by rollover situations, Bosch has developed a system to detect these situations and initiate proper actions. To understand the need of this function, it is necessary to look at some statistical facts, which underline the importance of a rollover sensing device.Taking into account different rollover types, the question appears: What physical unit describes the roll motion best ? After careful considerations, Bosch made the conclusion to prefer the angular rate concept. The advantages and disadvantages are shown and the physical principle of the algorithm is explained.To compensate inaccuracies of angular rate sensors, acceleration sensors are implemented. They can take over, when the main sensors fail or do not show plausible results.For the simulation of different rollover scenarios Bosch applies the multibody method in an overall environment of modeling, verifying, validating and visualizing tools.