Patent Number: 6,169,479

Title: Vehicular deformation sensor system

Abstract: A sensor system for detecting impacts to a vehicle, allowing for actuation decisions of passive restraint devices. The sensor system includes one or more piezoelectric sensor assemblies (42), each including a coaxial piezoelectric cable (44) contained within a tube housing (54), which is mounted to a structural member of the vehicle. The sensor system may also include accelerometers (36, 38) that are also in communication with the restraints control module (40) and employed in combination with one or more piezoelectric sensor assemblies (42). Further, the sensor system may include diagnostics for monitoring one or more of the sensor assemblies (42) in order to detect a sensor failure, while not interfering with the impact signals from the sensor assemblies (42).

Inventors: Boran; Colm Peter (Novi, MI), Raphael; Eric Lewis (Stratford-upon-Avon, GB), Collins; Gary Richard (Brownstown, MI), Zoratti; Paul (South Lyon, MI)

Assignee: Visteon Global Technologies, Inc.

International Classification: B60R 21/01 (20060101); G01L 1/16 (20060101); B60R 21/34 (20060101); B60Q 001/00 ()

Expiration Date: 01/02/2018