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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.

While constantly striving to increase the levels of occupant protection, the need to intelligently detect occupancy has been identified. As different systems were considered, a optical based system was selected because of it's reliability and potential for reasonable cost feasibility. This paper describes the system detection philosophy, function, packaging and application. The paper also discusses the potential of the system for out of position sensing and its implications for smart airbag development.