A METHOD FOR SEAT OCCUPANCY DETECTION FOR AUTOMOBILE SEATS WITH INTEGRATED HEATING ELEMENTS

Boby George, Hubert Zangl, Thomas Bretterklieber, Georg Brasseur

Abstract

Seat occupancy detection systems based on a capacitive or an electric field principle, developed for an automobile seat, may not work well for seats with integrated electric heating systems. A new detection method, suitable for this type of automobile seats, is presented in this paper. In the proposed scheme, the heating element is a part of the sensor system while its operation as a heating element is kept unaffected. Results obtained from a prototype system demonstrate the practical validity of the method.

Keywords

Seat occupancy detection, capacitance measurement, synchronous detection

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IMEKO-WC-2009-TC18-251.pdf

DOI

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IMEKO TC

TC18 - Measurement of Human Functions

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