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Method for classifying passengers

  • US 7,730,794 B2
  • Filed: 02/27/2008
  • Issued: 06/08/2010
  • Est. Priority Date: 09/18/2007
  • Status: Active Grant
First Claim
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1. A method for classifying passengers, comprising the steps of:

  • providing a plurality of load sensors disposed in a passenger seat of an automobile for measuring a load applied to the passenger seat;

    obtaining a sum by summing respective values obtained by multiplying respective load values measured from the plurality of load sensors by weighted load values of the respective load sensors;

    comparing the sum with a reference value to classify a passenger on the passenger seat;

    wherein the plurality of load sensors consists of three load sensors and the weighted load values of the three respective load sensors are determined so as to satisfy all of [Equation 1], [Equation 2], and [Equation 3] under the condition that [Equation 4] is satisfied;


    Ai=X1i*S1i+X2i+*S2i+X3i*S3i



    [Equation 1]wherein Ai is an adult test measurement weight value measured in advance under a predetermined condition (i), Xki is a weighted load value of a k-th load sensor under the predetermined condition (i), and Ski is a load value measured by the k-th load sensor when an adult dummy is seated on the passenger seat,
    Ci=X1i*S1i+X2i*S2i+X3i*S3i



    [Equation 2]wherein Ci is an infant test measurement weight value measured in advance under a predetermined condition (i), Xki is a weighted load value of a k-th load sensor under the predetermined condition (i), and Ski is a load value measured by the k-th load sensor when an infant dummy is seated on the passenger seat,
    X1i+X2i+X3i=T



    [Equation 3]wherein Xki is a weighted load value of a k-th weight load sensor under the predetermined condition (i) and T is a specific limit value,
    MAX[MIN(Ai)−

    MAX (Ci)] 



    [Equation 4]wherein Ai is an adult test measurement weight value measured in advance under a predetermined condition (i), and Ci is an infant test measurement weight value measured in advance under the predetermined condition (i).

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