×

Method and installation for detecting certain parameters concerning an auxiliary child seat with a view to controlling the operation of the airbags of a vehicle

  • US 5,618,056 A
  • Filed: 10/16/1995
  • Issued: 04/08/1997
  • Est. Priority Date: 10/17/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. 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.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×