Patent ID: 7178411

Claim:
A load sensing system comprising: at least one front sensor that senses a load, which is applied to a front part of a seat of a vehicle; and at least one rear sensor that senses a load, which is applied to a rear part of the seat, wherein a size of an entire load sensing range of each front sensor is smaller than a size of an entire load sensing range of each rear sensors, wherein the load sensing range of each front sensor includes: a positive load sensing subrange for sensing a downward load, which is applied to the front part of the seat in a downward direction; and a negative load sensing subrange for sensing an upward load, which is applied to the front part of the seat in an upward direction; the load sensing range of each rear sensor includes: a positive load sensing subrange for sensing a downward load, which is applied to the rear part of the seat in the downward direction; and a negative load sensing subrange for sensing an upward load, which is applied to the rear part of the seat in the upward direction; and a size of the positive load sensing subrange of each front sensor is smaller than a size of the positive load sensing subrange of each rear sensor.