Patent · US Active

Magnetic crash sensor

US7514917B2 · kind B2 · utility

5Cited by

69References

4Claims

0Family size

Assignee

Automotive Systems Laboratory, Inc. · US

Inventors

Leonard Cech · Brighton, US
W. Todd Watson · Belleville, US
Scott E. Bauer · Holly, US
James D. Baal · Novi, US
Timothy J. Bomya · Westland, US
William Merrick · Ann Arbor, US
Richard W. Smith · Wooster, US

Key dates

Filing date	Sep 11, 2006
Grant date	Apr 7, 2009
Priority date	—
Expiry date	Oct 14, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R2021/0006
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A time-varying signal is applied to at least one coil in magnetic communication with at least a portion of a vehicle susceptible to deformation responsive to a crash. A sense resistor in series with the at least one coil provides for detecting a current therethrough responsive to a voltage thereacross. The current is responsive to a magnetic condition affecting the magnetic field generated by the at least one coil, responsive to the reluctance of a magnetic circuit with which the at least one coil is in magnetic communication, and responsive to associated eddy currents in proximal conductive elements, responsive to the magnetic field generated by the at least one coil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.