Detection device and method for detecting occupancy of a seat using a light guide force sensor
First Claim
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1. A detection device for detecting occupancy of a seat comprising:
- at least one elongate light guide having at least one elongate core element; and
at least one elongate sheath at a distance from the core element,wherein the light guide is deformable by mechanical actuation means in at least one direction running substantially perpendicular to the longitudinal axis of the light guide by deformation brought about by the seat being occupied, andwherein the elongate light guide is arranged at least partially in cushion material cut-outs for the light guide of a seat cushion associated with the seat.
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Abstract
To allow more reliable detection of occupancy of a seat by a person, the invention includes a detection device for detecting occupancy of a seat, in particular of a vehicle seat or motor vehicle seat, comprising at least one elongate light guide having at least one elongate core element and at least one elongate sheath at a distance from the core element. The light guide is deformable by mechanical actuation means in at least one direction running perpendicular to the longitudinal axis of the light guide by the deformation brought about by the seat being occupied causes the light to exit from the light guide on the side opposite the mechanical means.
24 Citations
10 Claims
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1. A detection device for detecting occupancy of a seat comprising:
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at least one elongate light guide having at least one elongate core element; and at least one elongate sheath at a distance from the core element, wherein the light guide is deformable by mechanical actuation means in at least one direction running substantially perpendicular to the longitudinal axis of the light guide by deformation brought about by the seat being occupied, and wherein the elongate light guide is arranged at least partially in cushion material cut-outs for the light guide of a seat cushion associated with the seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A detection device for detecting occupancy of a seat comprising:
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at least one elongate light guide having at least one elongate core element; and at least one elongate sheath at a distance from the core element, wherein the light guide is deformable by mechanical actuation means in at least one direction running substantially perpendicular to the longitudinal axis of the light guide by deformation brought about by the seat being occupied, wherein the mechanical actuation means is configured to deform the light guide, wherein the mechanical actuation means have raised areas substantially oriented towards the light guide, wherein the seat part comprises a seat cushion, and wherein the seat cushion has material cut-outs corresponding to raised areas of the mechanical actuation means.
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Specification