System and method for detecting occupant
AssigneeDenso Corporation
InventorShingo Wanami
Life of this patent
Estimating the term…
Abstract
An occupant detecting system includes a temperature sensor that sequentially detects temperatures at a fixed position, a plurality of weight sensors disposed at predetermined positions of a seat to respectively provide weight signals, an occupant ECU. The ECU estimates temperatures of the weight sensors based on the temperatures sequentially detected by the temperature sensor and temperature characteristic data of the weight sensors relative to temperatures detected by the temperature sensor and corrects the weight signals based on the estimated temperatures.
Claims9
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;
- estimating means for estimating temperatures of said weight sensors based on the temperatures sequentially detected by said temperature sensor and temperature characteristic data of said weight sensors relative to temperatures detected by said temperature sensor;
- and
- correcting means for correcting the weight signals based on the temperatures estimated by said estimating means.
A seat occupant detecting system comprising:
- a temperature sensor for sequentially detecting temperatures of a fixed position;
- a plurality of weight sensors, disposed at predetermined positions of a seat, for respectively providing weight signals;
- and
- an occupant detecting ECU including said temperature sensor and a ROM that stores temperature characteristic data of said weight sensors relative to temperatures detected by said temperature sensor;
- wherein said ECU comprises:
- estimating means for estimating temperatures of said weight sensors based on the temperatures sequentially detected by said temperature sensor and the temperature characteristic data;
- and
- correcting means for correcting the weight signals based on the temperatures estimated by said estimating means.
A method of detecting an occupant of a seat comprising the steps of:
- sequentially detecting temperature of a fixed position;
- detecting weight of the seat at a plurality of positions of the seat by weight sensors respectively disposed at the plurality of positions;
- estimating temperatures of said weight sensors based on the temperatures sequentially detected by said temperature sensor and temperature characteristic data of said weight sensors relative to temperatures of said temperature sensor;
- and
- correcting the weight signals based on the estimated temperature.
Dependencies are inferred from the claim text.