System for detecting seat occupancy
1 Assignment
0 Petitions
Accused Products
Abstract
A system for the detection of a seat occupancy in a vehicle, including first and second capacitive electrodes being arranged in a compartment of the vehicle, and a driver and evaluation circuit, operatively connected to the first and second capacitive electrodes. The first capacitive electrode is arranged in a seat of the vehicle while the second capacitive electrode is arranged in a foot-area of the vehicle, and the driver and evaluation circuit includes the ability for driving the first capacitive electrode and determining a capacitive coupling with a conductive object placed on the seat and further includes the ability for driving the second electrode and determining a capacitive coupling between the second electrode and the first electrode.
52 Citations
43 Claims
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1-19. -19. (canceled)
- 20. A system for the detection of a seat occupancy in a vehicle, comprising first and second capacitive electrodes, said first and second capacitive electrodes being arranged in a compartment of said vehicle, and a driver and evaluation circuit operatively connected to said first and second capacitive electrodes, wherein said first capacitive electrode is arranged in a seat of said vehicle and said second capacitive electrode is arranged in a foot-area of said vehicle, and said driver and evaluation circuit comprises means for driving said first capacitive electrode and determining a capacitive coupling of said first capacitive electrode with a body or object placed on said seat and means for driving said second electrode and determining a capacitive coupling between said second electrode and said first electrode.
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37. A method for the detection of a seat occupancy in a vehicle comprising the steps of:
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a) driving a first capacitive electrode arranged in a seat of said vehicle and determining a capacitive coupling of said first capacitive electrode with an object placed on said seat, and b) driving a second capacitive electrode arranged in a foot-area of said vehicle and determining a capacitive coupling between said second electrode and said first electrode. - View Dependent Claims (38, 39, 40, 41)
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Specification