Patent ID: 8400323
Filing Date: 2013-03-19
Classification: B60N,B60R

Abstract:
1. An occupant detection system for a seat comprising: an electrode formed of a conductive element and arranged in a seat proximate to an expected location of an occupant for sensing an occupant proximate thereto; control circuitry for controlling an electrical device proximate to the seat; a signal generator coupled to the electrode and configured to output to the electrode a plurality of signals at a plurality of frequencies; occupant detection circuitry for detecting voltages responsive to the plurality of signals at the plurality of frequencies and detecting a state of occupancy based on the detected voltages; and an LC circuit coupled to the conductive element and the control circuitry for suppressing capacitance generated by the control circuitry, wherein the electrode comprises a seat heater element and the control circuitry controls the heater element.