Patent ID: 7866691
Filing Date: 2011-01-11
Classification: B60R

Abstract:
1. An occupant classifying device for a vehicle seat, that includes a seat back at a rear portion of the vehicle seat, the occupant classifying device comprising: an occupant classifying means for classifying an occupant type on the basis of a seating load applied to the vehicle seat; a first load sensor provided at a rear portion of the vehicle seat in order to measure a rear load that is a part of the seating load; a second load sensor provided at a front portion of the vehicle seat in order to measure a front load that is a part of the seating load; a rear load ratio calculating means for calculating a rear load ratio indicating a ratio of the rear load in the seating load on the basis of the measured rear and front loads; a securing determining means determining whether or not a child restraint system is secured to the vehicle seat on the basis of the calculated rear load ratio; wherein the occupant classifying means: the securing determining means determines that the child restraint system is secured to the vehicle seat when the rear load ratio is larger than a first ratio threshold.