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TEMIC as an automotive electronics manufacturer has done research since several years to develop suitable sensors for occupant detection. The paper will present simulation results and technical solutions concerning this issue which is one of the key points in the future design of advanced airbags.

Some aspects on the detection of critical roll over situations for car safety applications will be presented. The detection via acceleration sensitive devices will be discussed as well as the detection via roll rate sensing elements. A combination of both sensors, the inclination sensing element and the roll rate sensing element seems to be the most feasible way for realization of a safe roll over detection.