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1. WO2002042124 - SYSTEM AND METHOD FOR CONTROLLING AIR BAG DEPLOYMENT SYSTEMS

Publication Number WO/2002/042124
Publication Date 30.05.2002
International Application No. PCT/US2001/043449
International Filing Date 21.11.2001
IPC
B60R 21/01 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
01Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents
CPC
B60R 21/01516
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
01Electrical circuits for triggering ; passive; safety arrangements, ; e.g. airbags, safety belt tighteners,; in case of vehicle accidents or impending vehicle accidents
015including means for detecting the presence or position of passengers, passenger seats or child seats ; , and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
01512Passenger detection systems
01516using force or pressure sensing means
B60R 21/01534
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
01Electrical circuits for triggering ; passive; safety arrangements, ; e.g. airbags, safety belt tighteners,; in case of vehicle accidents or impending vehicle accidents
015including means for detecting the presence or position of passengers, passenger seats or child seats ; , and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
01512Passenger detection systems
0153using field detection presence sensors
01534using electromagneticwaves, e.g. infrared
B60R 21/01556
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
01Electrical circuits for triggering ; passive; safety arrangements, ; e.g. airbags, safety belt tighteners,; in case of vehicle accidents or impending vehicle accidents
015including means for detecting the presence or position of passengers, passenger seats or child seats ; , and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
01556Child-seat detection systems
Applicants
  • TIME DOMAIN CORPORATION [US]/[US] (AllExceptUS)
  • FINN, James, S. [US]/[US] (UsOnly)
Inventors
  • FINN, James, S.
Agents
  • FINN, James, S.
Priority Data
09/718,18021.11.2000US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR CONTROLLING AIR BAG DEPLOYMENT SYSTEMS
(FR) SYSTEME ET PROCEDE POUR COMMANDER DES SYSTEMES DE DEPLOIEMENT D'AIRBAG
Abstract
(EN)
A system and method for controlling air bag deployment systems based on the presence, position, size, and weight of a person present in an automobile or a child seat present in an automobile is disclosed. The system may include a radar transmitter, radar receiver, and a processor or additionally a weight sensor, a reflector, and a child seat reflector. The transmitter generates and transmits ultra-wide band (UWB) pulses and the receiver generates a receiver signal based on reflected UWB pulses received by the receiver. The receiver signal contains information indicative of the presence, position, and size of a person in the automobile or regarding the presence of a child seat in the passenger seat. The weight sensor generates a weight signal indicative of a weight present in either the passenger side seat or the driver side seat of the automobile. The processor either inhibits deployment or controls the rate of deployment of an airbag based on the receiver signal and the weight signal. Alternatively, the processor compares the receiver signal and the weight signal to a set of predetermined receiver signal profiles and weight signal profiles and controls deployment of the airbag based on matching receiver signal and weight signal profiles.
(FR)
L'invention concerne un système et un procédé pour commander des systèmes de déploiement d'airbag en fonction de la présence, la position, la taille et le poids d'une personne se trouvant dans un véhicule ou de la présence d'un siège enfant se trouvant dans un véhicule. Dans un mode de réalisation, le système comprend un émetteur radar, un récepteur radar et un processeur. Dans d'autres modes de réalisation, le système comprend en outre un capteur de poids, un réflecteur et un réflecteur de siège enfant. L'émetteur génère et émet des impulsions à très large bande (UWB) et le récepteur génère un signal de réception d'après les impulsions UWB réfléchies qu'il reçoit. Le signal de réception contient des informations concernant la présence, la position et la taille d'une personne se trouvant dans le véhicule. Par ailleurs, le signal de réception peut contenir des informations concernant la présence d'un siège enfant sur le siège passager du véhicule. Le capteur de poids génère un signal de poids indiquant un poids présent sur le siège passager ou le siège conducteur du véhicule. Le processeur bloque le déploiement ou régule le taux de déploiement d'un airbag situé dans le véhicule en fonction du signal de réception et du signal de poids. Dans une variante, le processeur compare le signal de réception et le signal de poids à un ensemble de profils de signaux de réception et de profils de signaux de poids prédéterminés et commande le déploiement de l'airbag en fonction de la correspondance des signaux avec les profils de signaux de réception et de signaux de poids.
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