Fast response micro-safing sensor for air bag systems
Fast response micro-safing sensor for air bag systems
To introduce a new micro-safing sensor for automotive applications with excellent characteristics based on silicon micro-machining techniques to prevent malfunctions in air bag systems using an acceleration switch. This sensor is composed of an upper electrode, cantilever, and pedestal formed by silicon micro-machining. The upper electrode and cantilever contact mechanically when acceleration during collision is applied and the ''ON'' signal is output. To achieve a satisfactory result, an optimal shape design using FEM simulation was developed. Also, the frequency characteristic of 100 Hz and threshold acceleration of 2 - 4 (G) are obtained by electrostatic force and chattering measure at the contact point. Other characteristics include high-speed response, compactness, and the fact it is inexpensive, making it highly suitable as a safing sensor for side air bag systems.
Dokumentinformationen
Fast response micro-safing sensor for air bag systems
Schnell ansprechender Mikrosicherheitssensor für Airbagsysteme
2000
4 Seiten, 12 Bilder, 4 Tabellen
Aufsatz (Konferenz)
Englisch
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