Patent ID: 7460939

Claim:
An occupant detecting system comprising: a temperature sensor that sequentially detects temperatures at a fixed position; a plurality of weight sensors, disposed at predetermined positions of a seat, for respectively providing weight signals; storing means for storing temperature characteristic data of said weight sensors relative to temperatures; estimating means for estimating temperatures of said weight sensors based on the temperatures sequentially detected by said temperature sensor and said temperature characteristic data of said weight sensors relative to temperatures detected by said temperature sensor; correcting means for correcting the weight signals based on the temperatures estimated by said estimating means; and an occupant detecting ECU that carries out an occupant detection according to the corrected weight signals corrected by said correcting means, wherein said estimating means comprises: first means for calculating a speed of changing temperature based on a temperature difference between two points of times; and second means for calculating temperatures of said weight sensors based on the temperatures detected by said temperature sensor and the temperature characteristic data if the temperature difference is larger than a predetermined temperature, and the speed of changing temperature is higher than a predetermined speed.