Standardization of airbag electronics, an innovative challenge

Sie sind hier: Homepage > Suche

Standardization of airbag electronics, an innovative challenge

Glaser, Telmo / König, Aleksander / Gesell, Alex

Standardization, as a typical phenomenon of commodity products, is one of the big new challenges in the field of airbag electronics. As an example we discuss the standardization of airbag satellites, i. e. of decentralized sensors for crash-detection. The standardization activities do not only cover the electrical and mechanical interface, and the protocol for sensor data transmission. Also signal processing and functions are considered. Aiming at a high degree of harmonization, we face the conflict how to achieve cost and performance optimized solutions. Additionally, we see new requirements, e. g. with respect to reliability, bus topologies, or crash performance. For standard products it is difficult to meet new demands. Looking for answers, we consider enhanced (self-)diagnosis functions, EMC improved designs, extensions of the specification of the data link layer, and finally the combination with alternative sensor principles. In this lecture we present several aspects with respect to black box design and the specification of interfaces. We consider both functional principles, and design and implementation Further on, limitations, related to used technology and implementation, are shown. We also ask how to keep the way free for future improvements despite a high level of standardization. Benefits and risks with respect to the addressed topics are evaluated.