Belt assembly including plus-two-point belt reminder
First Claim
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1. An occupant restraint system comprising:
- a plus-two-point belt having longitudinal first webbing anchored at a first end to a seat and fixed at a second end to a plus-two retractor;
the first webbing including first and second portions, wherein the second portion is retractably coiled on the plus-two retractor;
the second portion having at least one conductive plus-two marker,a plus-two sensor positioned adjacent the second end of the first webbing and configured to sense the plus-two marker;
a releasably lockable belt assembly having a second webbing with a plurality of markers being equally spaced along the second webbing;
means for actuating an alarm when the plus-two marker in the first webbing is not detected; and
means for determining the length of the second webbing paid out to classify an occupant in the seat.
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Abstract
A plus-two-point belt system is disclosed. The plus-two-point belt system includes a longitudinal webbing anchored at a first end to a seat and fixed at a second end to a retractor. The webbing is extendable from the retractor to allow an occupant to slip their arm under the webbing to provide a supplemental restraint. The webbing includes first and second portions where the second portion is retractably coiled on the retractor and the second portion has at least one conductive marker. A sensor is provided to sense the marker and a processor is provided to set an alarm when the marker is not detected.
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Citations
16 Claims
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1. An occupant restraint system comprising:
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a plus-two-point belt having longitudinal first webbing anchored at a first end to a seat and fixed at a second end to a plus-two retractor;
the first webbing including first and second portions, wherein the second portion is retractably coiled on the plus-two retractor;
the second portion having at least one conductive plus-two marker,a plus-two sensor positioned adjacent the second end of the first webbing and configured to sense the plus-two marker; a releasably lockable belt assembly having a second webbing with a plurality of markers being equally spaced along the second webbing; means for actuating an alarm when the plus-two marker in the first webbing is not detected; and means for determining the length of the second webbing paid out to classify an occupant in the seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for estimating the size of an occupant and for determining whether a plus-two-point belt system is engaged, a plus-two-point belt having a first webbing anchored at a first end and coiled on a retractor at a second end, and a releasably lockable belt assembly;
- the releasably lockable belt assembly including a second webbing with a plurality of equally spaced markers;
the method comprising;determining whether an occupant is in a seat and an ignition of a vehicle occupied by the occupant is in an on position; and sensing with a sensor proximate the retractor a plus-two marker in a second portion of the first webbing, a step for actuating an alarm when the plus-two marker is not sensed, a step for determining the length of the second webbing paid out, and a step for estimating the size of the occupant in the seat based on the length of the second webbing paid out. - View Dependent Claims (12, 13, 14, 15, 16)
- the releasably lockable belt assembly including a second webbing with a plurality of equally spaced markers;
Specification