초록 ▼

A system to detect certain parameters concerning an auxiliary child seat placed on a passenger seat of a motor vehicle equipped with an airbag protection system. The system uses inductive electromagnetic emitter and receiver circuits located in the passenger seat and at least two resonant circuits p

A system to detect certain parameters concerning an auxiliary child seat placed on a passenger seat of a motor vehicle equipped with an airbag protection system. The system uses inductive electromagnetic emitter and receiver circuits located in the passenger seat and at least two resonant circuits provided in the base of an auxiliary child seat. Using the inductive and resonant circuits, the system detects various parameters concerning the child seat. Some of the parameters include the presence of a child seat, whether or not the child seat is occupied, the orientation of the child seat, and the type of child seat present. These parameters are transmitted to an airbag control unit in order to adapt the deployment of the airbag to the specific circumstances as indicated by the inductive and resonant circuits. The transmitted information allows the airbag control unit to disable the airbag in certain situations where it is not needed, such as when the child seat is not occupied or is facing the rear of the vehicle.

대표청구항 ▼

A system for detecting certain parameters concerning an auxiliary child seat placed on a passenger seat of a motor vehicle equipped with an airbag protection system so that the parameters are used to adapt the deployment of the airbag protection system associated with the seat supporting said auxili

A system for detecting certain parameters concerning an auxiliary child seat placed on a passenger seat of a motor vehicle equipped with an airbag protection system so that the parameters are used to adapt the deployment of the airbag protection system associated with the seat supporting said auxiliary seat according to the parameters detected, comprising: at least one electromagnetic induction emitter circuit and at least one electromagnetic induction receiver circuit, each electromagnetic induction emitter and receiver circuit being incorporated into the passenger seat of the vehicle which is protected by the airbag protection system; at least two resonant circuits incorporated into the base of the child seat and positioned, when the child seat is placed on the passenger seat, to influence an electromagnetic coupling between each electromagnetic induction emitter and receiver circuit so as to cause each electromagnetic induction receiver circuit to deliver a signal representing at least one of the parameters; wherein each resonant circuit is associated with electronic modulation circuit means for modulating the electromagnetic coupling with a distinct modulation, the distinct modulation of each resonant circuit providing means for distinguishing between the respective resonant circuits.