Method and Device for Recognition of the Seat Occupancy of a Seat
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Accused Products
Abstract
The recognition of seat occupancy of a seat is achieved by recording at least one measured signal by way of a seat occupancy sensor. The measured signal is allocated a weight signal by way of an allocation rule, which is representative of a weight with which the seat is occupied. The allocation rule is altered when the weight signal over the course of time is first greater than a given upper threshold and when further, during a given first duration the weight signal lies in a first weight range at a weight zero value. The allocation rule is altered such that the then current measured signal is allocated the weight signal reduced by a given percentage from the weight signal. The allocation rule is further altered when the weight signal lies around the weight zero value in a given second weight range during a given second duration, which is much longer than the first duration. The allocation rule is altered such that the then current measured signal is allocated a weight signal reduced by a given correction value.
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Citations
17 Claims
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1-8. -8. (canceled)
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9. A method for recognizing a seat occupancy of a seat, which comprises:
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detecting at least one measuring signal by way of a seat occupancy sensor system; allocating the measuring signal by an allocation rule to a weight signal that is representative of a weight with which the seat is occupied; adapting the allocation rule when the weight signal over time is greater than a predetermined upper threshold value and if subsequently the weight signal during a predetermined first duration lies in a first weight range around a zero weight value, wherein the allocation rule is adapted such that a then current measuring signal is allocated to a weight signal reduced in amount by a predetermined percentage proportion of the weight signal; adapting the allocation rule when the weight signal lies in a predetermined second weight range around the zero weight value during a predetermined second duration, which is far greater than the first duration, wherein the allocation rule is adapted such that a then current measuring signal is allocated to a weight signal reduced in amount by a predetermined correction value. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A device for recognizing a seat occupancy of a seat, which comprises a system configured and programmed to:
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detect at least one measuring signal with a seat occupancy sensor system; allocate the measuring signal by way of an allocation rule to a weight signal, which is representative of a weight with which the seat is occupied; adapt the allocation rule by allocating a then-current measuring signal to the weight signal reduced in amount by a predetermined percentage proportion of the weight signal, if the weight signal over the course of time is initially greater than a predetermined upper threshold value and if subsequently the weight signal, during a predetermined first duration, lies in a first weight range around the zero weight value’ adapt the allocation rule by allocating a then-current measuring signal to the weight signal reduced in amount by a predetermined percentage proportion of the weight signal, if the weight signal lies in a predetermined second weight range around zero weight during a predetermined second duration that is far greater than the first duration.
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Specification