| 摘要 |
<p>A seat occupant sensor system comprises at least one seat occupant sensor (62,64,66,68) within a seat (70). The sensor includes first, second, and third flexible conductor plates (86,88,90). The first plate (86) is interposed between the second and third plates (88,90) such that the first and third plates (86,90) are separated by a separation distance. The second and third plates (88,90) are electrically grounded and the first, second, and third plates (86,88,90) have a capacitance dependent on the separation distance. The sensor further includes a non-conductive compressible element (92) interposed between the first and second plates (86,88) and a second non-conductive compressible element (94) interposed between the first and third plates (86,90). The first and second elements (92,94) compress in response to a seat occupant applying force to the sensor such that the separation distance between the second and third plates (88,90) decreases, wherein the capacitance changes in response to the separation distance decreasing. The sensor also comprises a controller for determining characteristics of the seat occupant as a function of the capacitance of the at least one seat occupant sensor.</p> |
