Activation system and method for passenger protection device

An activation system for a passenger protection device comprises a pair of communication wires, a central unit for detecting currents flowing in the communication wires, and a satellite unit for varying the currents flowing in the communication wires based on output data of an acceleration detection...

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Bibliographic Details
Main Author MIURA HISANORI
Format Patent
LanguageEnglish
Published 29.03.2011
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:An activation system for a passenger protection device comprises a pair of communication wires, a central unit for detecting currents flowing in the communication wires, and a satellite unit for varying the currents flowing in the communication wires based on output data of an acceleration detection sensor. The central unit calculates a sum of the detected currents and compares the sum with a first predetermined level to detect the output data of the sensor. The central unit also calculates a difference between the detected currents and compares the difference with a second predetermined level, thereby detecting failure in the communication wires and stopping activation of the passenger protection device.
Bibliography:Application Number: US20070656162