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Browse Prior Art Database

VEHICLE OCCUPANT DETECTION AND WEIGHT DETERMINING SYSTEM

IP.com Disclosure Number: IPCOM000023776D
Publication Date: 2004-Mar-31

Publishing Venue

The IP.com Prior Art Database

Abstract

A system for detecting an occupant and determining the weight of the occupant seated in a vehicle seat is disclosed. The system comprises a seat. The system also comprises a track system coupled to the seat and configured for translating the seat between a first horizontal position and a second horizontal position. The system also comprises a linking system configured to transfer a vertical force from the seat to a horizontal member coupled to the track system. The system also comprises at least one sensor configured to measure the vertical force from the seat. The horizontal member is substantially perpendicular to the vertical force from the seat.

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 VEHICLE OCCUPANT DETECTION AND WEIGHT DETERMINING SYSTEM

    A system for detecting an occupant and determining the weight of the occupant seated in a vehicle seat is disclosed. The system comprises a seat. The system also comprises a track system coupled to the seat and configured for translating the seat between a first horizontal position and a second horizontal position. The system also comprises a linking system configured to transfer a vertical force from the seat to a horizontal member coupled to the track system. The system also comprises at least one sensor configured to measure the vertical force from the seat. The horizontal member is substantially perpendicular to the vertical force from the seat.

    It is generally known to provide a seat weight measuring apparatus for a vehicle. One such known seat weight measuring apparatus is shown in
U.S. Patent No. 6,416,080 issued on July 9, 2002 to Gillis et al. and currently assigned to TRW Inc. of Lyndhurst, Ohio. However, such known seat weight measuring apparatus typically rely on four weight sensors positioned one at each corner of the seat.

    U.S. Patent No. 6,342,683 issued on January 29, 2002 to Aoki et al. and currently assigned to Takata Corporation of Tokyo, Japan shows an occupant detection device utilizing a concentrating mechanism to direct the forces to a sensor for occupant detection and classification.

    Similarly, U.S. Patent No. 6,448,512 issued on September 10, 2002 to Cooper and currently assigned to TRW Inc. of Lyndhurst, Ohio shows a weight sensing apparatus for use in a vehicle seat including a sensor

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cantilever supporting the vehicle seat to detect an occupant and determine the occupant's weight.

    U.S. Patent No. 6,416,080 issued on July 9, 2002 to Gillis et al. and currently assigned to TRW Inc. of Lyndhurst, Ohio shows an occupant detection device similar to that of the Cooper reference that further shows software logic for analyzing the information produced by the weight sensor.

    U.S. Patent Application Published 2001/0018849 published on September 6, 2001 in the name of Bruns shows a torsional sensing load cell connected to the track assembly of a vehicle seat at the support locations to determine weight and sitting position of an occupant of a motor vehicle.

    U.S. Patent Application Publication 2003/0056997 published on March 27, 2003 in the name of Breed et al. and currently assigned to Automotive Technologies shows an apparatus and method for measuring weight of an occupying item of a vehicle seat and a neural network and sensors applied in various locations of the seat to achieve the objective.

    However, such known seat weight measuring apparatus typically require four sensors to accommodate for the shifting of weight and/or position of the occupant of the seat. Further, such known seat weight measuring apparatus are expensive and complicated because they require an electronic module to sum the forces measured by each of the four...