A capacitive sensing apparatus for a vehicle seat includes a deflectable
dielectric mat and a flexible printed circuit that wraps around the major
surfaces of the dielectric mat to define upper and lower conductor strips
that overlap in a direction perpendicular to the dielectric mat.
Overlapping regions of the conductor strips define an array of capacitive
load cells distributed over the seating surface. A connector stub
depending from the flexible printed circuit couples the conductor strips
to an external circuit that measures the capacitance of the various load
cells to determine occupant weight and weight distribution.