ES2045424T3 - Circuito de disparo para un sistema de retencion del pasajero de un vehiculo. - Google Patents

Circuito de disparo para un sistema de retencion del pasajero de un vehiculo.

Info

Publication number
ES2045424T3
ES2045424T3 ES89304475T ES89304475T ES2045424T3 ES 2045424 T3 ES2045424 T3 ES 2045424T3 ES 89304475 T ES89304475 T ES 89304475T ES 89304475 T ES89304475 T ES 89304475T ES 2045424 T3 ES2045424 T3 ES 2045424T3
Authority
ES
Spain
Prior art keywords
voltage
circuit
initiators
branch
connections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES89304475T
Other languages
English (en)
Inventor
Kevin E Musser
Craig W White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automotive Systems Laboratory Inc
Original Assignee
Automotive Systems Laboratory Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automotive Systems Laboratory Inc filed Critical Automotive Systems Laboratory Inc
Application granted granted Critical
Publication of ES2045424T3 publication Critical patent/ES2045424T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/017Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
    • B60R21/0173Diagnostic or recording means therefor
    • B60R21/0176Diagnostic or recording means therefor for firing circuits using only mechanical switches as collision detecting means, in series with pyrotechnic fuses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/06Safety nets, transparent sheets, curtains, or the like, e.g. between occupants and glass
    • B60R21/08Safety nets, transparent sheets, curtains, or the like, e.g. between occupants and glass automatically movable from an inoperative to an operative position, e.g. in a collision
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00Safety arrangements
    • G05B9/02Safety arrangements electric
    • G05B9/03Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Air Bags (AREA)

Abstract

UN CIRCUITO DE ACCIONAMIENTO PARA DESPLEGAR UN PAR DE BOLSAS DE AIRE COMPRENDE DOS RAMAS DE CIRCUITOS CONECTADAS EN PARALELO A TRAVES DE UNA FUENTE DE ALIMENTACION. CADA RAMA DEL CIRCUITO COMPRENDE EN SERIE UN SENSOR DE SEGURIDAD, UN INICIADOR Y UN SENSOR DE CHOQUE, ESTANDO DERIVADO CADA SENSOR POR UN ELEMENTO DE RESISTENCIA CON UNA RESISTENCIA NOMINAL SUSTANCIALMENTE MAYOR DE LA RESISTENCIA NOMINAL DE LOS INICIADORES. DOS PUENTES DE DIODO SEPARADOS, COMPRENDIENDO CADA UNO UN PAR DE DIODOS OPUESTAMENTE POLARIZADOS, PUENTEAN LAS RAMAS DEL CIRCUITO EN CONEXIONES ENTRE LOS SENSORES DE SEGURIDAD Y LOS INICIADORES, Y ENTRE LOS INICIADORES Y LOS SENSORES DE CHOQUE, RESPECTIVAMENTE, PARA PROPORCIONAR TRAYECTOS DE ACCIONAMIENTO MULTIPLE PARA AMBOS INICIADORES. UN MICROPROCESADOR COMPRUEBA LA INTEGRIDAD DEL CIRCUITO DE ACCIONAMIENTO Y DIAGNOSTICA LA PRESENCIA DE FALLO EN EL MISMO MEDIANTE LA LECTURA DE LOS POTENCIALES DE TENSION EN CADA CONEXION, COMPARANDO EL POTENCION DE TENSION EN UNA O MAS CONEXIONES ON LA TENSION DE ALIMENTACION, COMPARANDO LA CAIDA DE TENSION A TRAVES DE LOS PUENTES DE DIODOS CON LAS TENSION DE CONDUCCION POLARIZADA DIRECTA DEL DIODO, Y, SI NO SE HA IDENTIFICADO UN FALLO DETERMINADO, MEDIANTE LA DETERMINACION DEL EFECTO SOBRE EL POTENCIAL DE TENSION EN UNA O MAS CONEXIONES CUANDO SE INCREMENTA LA TENSION DE ALIMENTACION APLICADA A TRAVES DEL CIRCUITO DE ACCIONAMIENTO. EL MICROPROCESADOR DETERMINA PERIODICAMENTE LAS TENSIONES DE CONDUCCION POLARIZADA DIRECTA DE LOS DIODOS DE PUENTE PARA SU UTILIZACION EN LA SECUENCIA DE DIAGNOSTICO ANTERIOR MEDIANTE LA MANIPULACION DE UN CONMUTADOR DE CORRIENTE CONECTADO A UNA CONEXION EN CADA RAMA DEL CIRCUITO Y DETERMINANDO LA CAIDA DE TENSION RESULTANTE A TRAVES DE LOS PUENTES DE DIODOS.
ES89304475T 1988-09-23 1989-05-04 Circuito de disparo para un sistema de retencion del pasajero de un vehiculo. Expired - Lifetime ES2045424T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/249,366 US4851705A (en) 1988-09-23 1988-09-23 Firing circuit for a vehicle passenger restraint system

Publications (1)

Publication Number Publication Date
ES2045424T3 true ES2045424T3 (es) 1994-01-16

Family

ID=22943163

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89304475T Expired - Lifetime ES2045424T3 (es) 1988-09-23 1989-05-04 Circuito de disparo para un sistema de retencion del pasajero de un vehiculo.

Country Status (8)

Country Link
US (1) US4851705A (es)
EP (1) EP0360376B1 (es)
JP (1) JPH0657521B2 (es)
KR (1) KR920007863B1 (es)
AU (1) AU605989B2 (es)
CA (1) CA1336723C (es)
DE (1) DE68908649T2 (es)
ES (1) ES2045424T3 (es)

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DE3922506A1 (de) * 1989-07-08 1991-01-17 Bosch Gmbh Robert Insassen-sicherheitssystem fuer fahrzeuge
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JP2698454B2 (ja) * 1989-11-14 1998-01-19 アスコ株式会社 検出器制御回路
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US6685218B1 (en) * 1993-09-16 2004-02-03 Automotive Technologies International, Inc. Side impact sensors and airbag system
GB2259616B (en) * 1991-07-25 1995-07-05 Autoliv Dev Improvements in or relating to an ignition circuit for an air-bag
JP2876363B2 (ja) * 1991-09-11 1999-03-31 トヨタ自動車株式会社 サイドエアバッグ装置の側面衝突センサシステム
DE59301479D1 (de) * 1992-03-12 1996-02-29 Siemens Ag Auslöseschaltung eines crashsensor-gesteuerten schutzsystemes eines fahrzeuges
US5447051A (en) * 1993-08-05 1995-09-05 Hewlett-Packard Company Method and apparatus for testing a piezoelectric force sensor
JP2661863B2 (ja) * 1993-10-29 1997-10-08 富士通テン株式会社 車両のエアバッグシステムにおけるスクイブライン系診断装置
US5496979A (en) * 1994-03-11 1996-03-05 Automotive Systems Laboratory, Inc. Accelerometer with optical switch
WO1996021263A1 (de) * 1994-12-30 1996-07-11 Robert Bosch Gmbh Elektronisches gerät
DE19542085B4 (de) * 1994-12-30 2007-07-05 Robert Bosch Gmbh Sicherheitseinrichtung für Fahrzeuginsassen
US5656991A (en) * 1995-05-22 1997-08-12 Trw Inc. Apparatus for testing an actuatable restraint system
US8229624B2 (en) * 1995-06-07 2012-07-24 American Vehicular Sciences Llc Vehicle diagnostic information generating and transmission systems and methods
US8157047B2 (en) * 1995-06-07 2012-04-17 Automotive Technologies International, Inc. Occupant protection systems control techniques
US20080046149A1 (en) * 1995-06-07 2008-02-21 Automotive Technologies International, Inc. Vehicle Component Control Methods and Systems Based on Vehicle Stability
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Also Published As

Publication number Publication date
KR920007863B1 (ko) 1992-09-18
US4851705A (en) 1989-07-25
AU3792189A (en) 1990-03-29
KR900004559A (ko) 1990-04-12
AU605989B2 (en) 1991-01-24
DE68908649D1 (de) 1993-09-30
EP0360376B1 (en) 1993-08-25
EP0360376A3 (en) 1990-07-18
DE68908649T2 (de) 1993-12-23
JPH0288344A (ja) 1990-03-28
EP0360376A2 (en) 1990-03-28
CA1336723C (en) 1995-08-15
JPH0657521B2 (ja) 1994-08-03

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