Patent ID: 7562735
Filing Date: 2009-07-21
Classification: B60N,B60R,G01G

Abstract:
1. A passenger detecting device adapted for a motor vehicle, the passenger detecting device comprising: a plurality of weight sensors that are arranged at different positions of a seat for respectively detecting weights acting on the seat of a motor vehicle; a weight-fluctuation monitoring means for monitoring weight-fluctuation amounts of the plurality of the weight sensors and a sum-weight fluctuation amount thereof, based on the weights detected by the plurality of the weight sensors, respectively; and a passenger judging and data updating means for judging a passenger on the seat to be a large physical-size person or a small physical-size person to update information on the passenger on the seat when the sum-weight fluctuation amount is not less than each of the weight fluctuation amounts, the passenger judging and data updating means for preventing the information to be updated when at least one of the weight fluctuation amounts is larger than the sum-weight fluctuation amount.