WO2000050255A1 - Procede et dispositif pour la detection du poids d'un occupant de siege - Google Patents

Procede et dispositif pour la detection du poids d'un occupant de siege Download PDF

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Publication number
WO2000050255A1
WO2000050255A1 PCT/US2000/004558 US0004558W WO0050255A1 WO 2000050255 A1 WO2000050255 A1 WO 2000050255A1 US 0004558 W US0004558 W US 0004558W WO 0050255 A1 WO0050255 A1 WO 0050255A1
Authority
WO
WIPO (PCT)
Prior art keywords
track
assembly
seat
sensor
inboard
Prior art date
Application number
PCT/US2000/004558
Other languages
English (en)
Inventor
Harald Lichtinger
Ralf Oestreicher
Josef Dirmeyer
Original Assignee
Siemens Automotive Corporation
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 Siemens Automotive Corporation filed Critical Siemens Automotive Corporation
Priority to BR0008484-0A priority Critical patent/BR0008484A/pt
Priority to EP00910291A priority patent/EP1156944A1/fr
Priority to JP2000600852A priority patent/JP2002537174A/ja
Priority to KR1020017010659A priority patent/KR20020005594A/ko
Publication of WO2000050255A1 publication Critical patent/WO2000050255A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0025—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat by using weight measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0027—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat for detecting the position of the occupant or of occupant's body part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/003—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat
    • B60N2/0031—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat mounted on the frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B60R21/0152—Passenger detection systems using force or pressure sensing means using strain gauges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors
    • B60N2210/42—Strain gauges

Definitions

  • This invention relates to a method and apparatus for measuring the weight of a seat occupant. Specifically, a sensor arrangement is mounted within a vehicle seat track to provide accurate seat occupant weight measurements.
  • a system for measuring the weight of an occupant seated on a vehicle seat includes a track assembly that is used to support a vehicle seat.
  • the track assembly includes a first track mounted to a vehicle structure and a second track supported for movement relative to the first track.
  • the tracks are deflectable in a vertical direction due to an occupant weight force exerted on the seat.
  • At least one sensor is mounted on the tracks for generating a signal representative of the occupant weight force.
  • the track assembly is comprised of an inboard track assembly and an outboard track assembly spaced apart from the inboard track assembly.
  • a first sensor assembly is mounted to the inboard track assembly for generating a first signal in response to measuring deflection of the inboard track assembly due to seat occupant weight.
  • a second sensor assembly is mounted to the outboard track assembly for generating a second signal in response to measuring deflection of the outboard track assembly due to seat occupant weight.
  • the system uses a central processor to determine seat occupant weight based on the first and second signals.
  • the system also preferably includes an airbag control module that is in communication with the processor. Deployment force of an airbag is controlled by the control module based on seat occupant weight.
  • a method for determining the weight of a seat occupant includes the following steps.
  • An inboard seat track assembly is mounted to a vehicle structure and an outboard seat track assembly is spaced apart from the inboard seat track assembly and mounted to the vehicle structure.
  • the inboard and outboard seat track assemblies are defined by a predetermined cross-sectional area and each track assembly has at least one track segment with a cross-sectional area that is less than the predetermined cross- sectional area.
  • the method steps includes mounting a first sensor assembly in the track segment of the inboard seat track assembly, mounting a second sensor assembly in the track segment of the outboard seat track assembly, generating a first signal from the first sensor assembly in response to deflection of the inboard track assembly due to seat occupant weight, generating a second signal from the second sensor assembly in response to deflection of the outboard track assembly due to seat occupant weight, and combining the first and second signals to determine seat occupant weight.
  • Additional steps include providing a system controller for controlling deployment of an airbag and generating a seat occupant weight signal based on the combination of the first and second signal.
  • the seat occupant weight signal is transmitted to the controller and the deployment force of the airbag is controlled based on the seat occupant weight.
  • Figure 1 is a perspective view showing a vehicle with an airbag system and an occupant sitting in a seat with the airbag in an active state shown in dashed lines.
  • Figure 2 is a side view of a seat assembly incorporating the subject weight measurement system.
  • Figure 3 is a side view of the seat track assembly of Figure 2.
  • Figure 3 A is a magnified view of the section 3 A indicated in Figure 3.
  • Figure 4 is a cross sectional view of the track assembly taken along lines 4-4 of Figure 3.
  • Figure 5 is a schematic view of a control system for the subject weight measurement system.
  • Figure 6 is a schematic view of the sensors mounted within the subject track assembly.
  • Figure 7 is a schematic view representing a full bending bridge.
  • Figure 8 is a schematic view of the sensors mounted within the subject track assembly having an overload mechanism.
  • a vehicle includes a vehicle seat assembly, shown generally at 12 in Figure 1, and an airbag system 14.
  • the seat assembly 12 can be either a driver or passenger seat and includes a seat back 16 and a seat bottom 18.
  • a vertical force Fv is exerted against the seat bottom 18.
  • the vertical force Fv represents the weight of the seat occupant 20.
  • the airbag system 14 deploys an airbag 24 under certain collision conditions.
  • the deployment force for the airbag 24, shown in dashed lines in Figure 1, varies according to the weight of the occupant 20.
  • the vehicle includes a unique system for measuring the weight of the seat occupant 20. This unique system is installed within a seat track assembly, generally indicated at 26 in Figure 2.
  • the seat track assembly 26 includes a first track member 28 mounted to a vehicle structure 30 such as a floor, frame, or riser, for example.
  • a second track member 32 is supported for movement relative to the first track member 28 along a longitudinal axis 34.
  • First 38 and second sensors 40 are mounted on one of the track members 28, 32. The sensors 38 and 40 are used to generate a signal representative of the occupant weight.
  • the first sensor 38 is preferably positioned rearwardly and the second sensor 40 positioned forwardly on the track assembly 26.
  • the first 38 and second 40 sensors are used to measure deflection of the track assembly 26 to generate the signal.
  • the first track member 28 includes a forward end 42 and a rearward end 44 with a central track portion 46 extending between the ends 42, 44.
  • the forward 42 and rearward 44 ends are mounted to the vehicle structure 30 such that the central track portion 46 remains unsupported to form gap 48 between the vehicle structure 30 and the central track portion 46.
  • the first track member 28 is mounted to a riser 50 having upwardly extending supports 52 at each end for attachment to the forward 42 and rearward 44 ends of the first track member 28.
  • the central track portion 46 of the seat track assembly 26 is deflectable under load.
  • a vertical force Fv is exerted against the track assembly 26, as shown in Figure 3.
  • Reaction forces Fr are exerted in the opposite direction.
  • the forces cause the central track portion 46 to deflect and reflect full bending beam behavior, shown generally at 54 in Figure 3A.
  • the sensors are preferably strain gages 38, 40 that are positioned along the central track portion 46, however, other types of sensors known in the art could also be used. For example, fiber optic or magneto elastic sensors could be used.
  • the sensors 38, 40 are preferably positioned in the first track member 28 such that the sensors 38, 40 remain positioned in the unsupported track section as the second track member 32 adjusts horizontally along axis 34.
  • a plurality of ball bearings 56 are installed between the track members 28, 32 such that the second track member 32 can slide easily relative to the first track member 28. The bearings 56 also transfer the forces applied to the second track member 32 to the rigid track portion 46 between the two (2) sensor locations.
  • the seat 12 is mounted to the vehicle structure 30 on an inboard track assembly 26a and an outboard track assembly 26b that is spaced apart from the inboard track assembly 26a by a predetermined distance.
  • the inboard 26a and outboard 26b track assemblies are mounted to have similar bending behavior, i.e. both track assemblies 26a, 26b are deflectable in a vertical direction due to an occupant weight force.
  • Both the inboard 26a and outboard 26b track assemblies include first 28 and second 32 track members.
  • first 28 and second 32 sensors are installed in the inboard track assembly 26a and third 58 and fourth 60 sensors are installed in the outboard track assembly 26b.
  • the first 38 and second 40 sensors generate a first signal 62 representative of the portion of occupant weight on the inboard track assembly 26a and the third 58 and fourth 60 sensors generate a second signal 64 representative of the portion of occupant weight on the outboard track assembly 26b.
  • the signals 62, 64 are transmitted to an electronic control unit (ECU) 66, which combines the signals to determine the weight of the occupant 20.
  • the ECU then sends a control signal 68 to a system controller 70.
  • the system controller 70 is an airbag control module that is in communication with the ECU 66 such that the deployment force of the airbag 24 is controlled based on seat occupant weight.
  • the system controller 70 could also be used to control the force of seat belt pretensioners based on occupant weight.
  • an option configuration could utilize one sensor assembly mounted to the inboard track assembly for generating the first signal 62 in response to measuring deflection of the inboard track assembly 26a due to seat occupant weight and a second sensor assembly mounted to the outboard track assembly 26b for generating the second 64 signal in response to measuring deflection of the outboard track assembly 26b due to seat occupant weight.
  • the track assembly 26 has a predetermined cross-sectional area defined by height HI.
  • a portion, generally indicated at 72, of each track assembly 26 has a cross-sectional area defined by H2 that is less than the predetermined cross-sectional area HI.
  • Each track assembly 26a, 26b has two (2) track portions 72 with this decreased cross-sectional area.
  • One sensor assembly 38, 40, 58, 60 is mounted in each track portion 72. Only the first sensor assembly 38 is shown in Figure 6. As the track assembly 26 deflects under load, the sensor assembly 38 measures full bending beam behavior 54, shown in Figure 7. Each of the sensors 38, 40, 58, 60 at the four (4) locations thus serves as a Wheatstone Bridge for measuring deflection. The operation of a Wheatstone Bridge is well known in the art.
  • the reduced cross-sectional area track portions 72 are created by forming square shaped holes within the first track member 28.
  • the holes create dual- beam spring elements. With such elements located on the inboard 26a and outboard 26b track assemblies, it is possible to measure the vertical force Fv applied on the area between the two sets of tracks 26a, 26b.
  • the method for determining the weight of a seat occupant includes the following steps. An inboard seat track assembly 26a is mounted to a vehicle structure 30 and an outboard seat track assembly 26b is spaced apart from the inboard seat track assembly 26a and mounted to the vehicle structure 30.
  • the inboard 26a and outboard 26b seat track assemblies are defined by a predetermined cross-sectional area HI and each track assembly 26a, 26b has at least one track segment 72 with a cross-sectional area H2 that is less than the predetermined cross-sectional area HI.
  • the method steps include mounting a first sensor assembly in the track segment 72 of the inboard seat track assembly 26a and mounting a second sensor assembly in the track segment 72 of the outboard seat track assembly 26b.
  • a first signal 62 is generated from the first sensor assembly in response to deflection of the inboard track assembly 26a due to seat occupant weight.
  • a second signal 64 is generated from the second sensor assembly in response to deflection of the outboard track assembly 26b due to seat occupant weight.
  • the first 62 and second 64 signals are used to determine seat occupant weight. Additional steps include providing a system controller 70 for controlling deployment of an airbag 24 and generating a seat occupant weight signal 68 based on the combination of the first 62 and second 64 signals. The seat occupant weight signal is transmitted to the controller and the deployment force of the airbag is controlled based on the seat occupant weight. Other steps include providing the inboard 26a and outboard 26b track assemblies with forward ends 42 and rearward 44 ends interconnected by a center portion 46 and fixing the forward 42 and rearward 44 ends to a vehicle structure 30 such that the center portion 46 of each track assembly 26a, 26b remains unsupported. The track segment 72 is preferably located in the center portion 46. As discussed above, the first sensor assembly is preferably comprised of first
  • the second sensor assembly is preferably comprised of third 58 and fourth 60 sensors that are mounted in the first track member 28 of the outboard track assembly 26b.
  • a seat track assembly 26 with integrated weight sensors 38, 40, 58, 60 is provided to determine the weight of an occupant 20 seated on a vehicle seat 12. It is preferable to integrate the sensors 38, 40, 58, 60 into the seat track assembly 26 because it is a common component for most vehicle seats 12. The subject weight measurement system is easily incorporated into any type of seat track configuration.
  • the weight sensors 38, 40, 58, 60 are mounted within reduced size track segments 72 to measure deflection of the track material caused by the weight of the occupant 72.
  • the measured weight is independent of seat positions and is accurately provided in various occupant positions on the seat 12.
  • the occupant weight which is proportional to the sum of the output of all of the sensors 38, 40, 58, 60.
  • the center of gravity of the upper part of the seat and the occupant can be calculated by subtracting the sum of the sensor signals in the front from the sum of the sensor signals in the rear and dividing the result by the sum of all four (4) signals.
  • the electronics for signal conditioning can be housed within the track assemblies 26a, 26b as is well known in the art.
  • One such method of protection utilizes an overload bolt 74, shown in Figure 8, extending through the track members 28, 30 to the vehicle floor 30. Under high vehicle impact forces, the bolt 74 prevents the track assembly 26 from separating from the floor 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un système permettant de mesurer le poids d'un occupant de siège pour contrôler le déploiement d'un airbag. Ce système est incorporé à un siège de véhicule reposant sur des ensembles glissière intérieure (26A) et glissière extérieure (26B). Ces ensembles sont montés sur une structure de véhicule de sorte que la partie de glissière centrale ne soit pas soutenue. Un premier ensemble capteur (38, 40) est monté sur l'ensemble glissière interne (26A), et un second ensemble capteur (58, 60) est monté sur l'ensemble glissière extérieure (26B). Le premier ensemble capteur fournit un premier signal répondant à la mesure d'une déviation de l'ensemble glissière interne due au poids de l'occupant du siège. Le second ensemble capteur fournit un second signal répondant à la mesure d'une déviation de l'ensemble glissière extérieure due au poids de l'occupant du siège. Un processeur central (66) détermine le poids de l'occupant du siège sur la base des premier et second signaux. Le processeur central (66) communique avec le système d'airbag (70) pour contrôler le déploiement de l'airbag sur la base du poids de l'occupant du siège.
PCT/US2000/004558 1999-02-24 2000-02-23 Procede et dispositif pour la detection du poids d'un occupant de siege WO2000050255A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR0008484-0A BR0008484A (pt) 1999-02-24 2000-02-23 Método e aparelho para verificação de peso de ocupante de assento
EP00910291A EP1156944A1 (fr) 1999-02-24 2000-02-23 Procede et dispositif pour la detection du poids d'un occupant de siege
JP2000600852A JP2002537174A (ja) 1999-02-24 2000-02-23 座乗者の体重を感知する方法及び装置
KR1020017010659A KR20020005594A (ko) 1999-02-24 2000-02-23 좌석 탑승자의 무게를 감지하는 장치 및 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12063799P 1999-02-24 1999-02-24
US60/120,637 1999-02-24

Publications (1)

Publication Number Publication Date
WO2000050255A1 true WO2000050255A1 (fr) 2000-08-31

Family

ID=22391611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/004558 WO2000050255A1 (fr) 1999-02-24 2000-02-23 Procede et dispositif pour la detection du poids d'un occupant de siege

Country Status (6)

Country Link
EP (1) EP1156944A1 (fr)
JP (1) JP2002537174A (fr)
KR (1) KR20020005594A (fr)
CN (1) CN1341061A (fr)
BR (1) BR0008484A (fr)
WO (1) WO2000050255A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002043984A2 (fr) * 2000-11-28 2002-06-06 Siemens Vdo Automotive Corporation Ensemble capteur de poids comportant un ressort de surcharge
WO2002043985A3 (fr) * 2000-11-28 2003-02-06 Siemens Automotive Corp Lp Ensemble capteur pour mesurer le poids applique sur un siege de vehicule
US6950031B2 (en) 2001-05-01 2005-09-27 Bizerba Gmbh & Co. Kg Device and method for detecting and preprocessing weights acting on a vehicle seat
CN103057488A (zh) * 2012-12-24 2013-04-24 朱佩芬 车载儿童安全保障方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4669637B2 (ja) * 2000-08-31 2011-04-13 タカタ株式会社 シート重量計測装置
DE10354585A1 (de) * 2003-11-21 2005-06-16 Robert Bosch Gmbh Verbindungselement
KR100986814B1 (ko) * 2008-07-28 2010-10-08 한국과학기술원 조향유닛
KR101013025B1 (ko) * 2009-12-14 2011-02-14 현대산업개발 주식회사 아치형 두부를 갖는 케이슨 방파제
JP5781878B2 (ja) * 2011-09-26 2015-09-24 矢崎総業株式会社 信号送受信装置
US20130192904A1 (en) * 2012-01-26 2013-08-01 Delphi Technologies, Inc. Occupant detection sensor assembly with integrated fasteners
CN102963274A (zh) * 2012-10-25 2013-03-13 浙江吉利汽车研究院有限公司杭州分公司 一种自适应汽车座椅系统及座椅调节方法
US10434966B2 (en) * 2016-10-26 2019-10-08 Ford Global Technologies, Llc Gap based airbag deployment
KR102673335B1 (ko) * 2022-04-18 2024-06-05 나사렛대학교 산학협력단 이동보조기기용 에어백 모듈 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809074A1 (de) * 1988-03-18 1989-10-05 Audi Ag Sicherheitssystem fuer kraftfahrzeuge unter einbeziehung eines aufblasbaren aufprallschutzkissens
EP0796768A1 (fr) * 1996-03-21 1997-09-24 Trw Inc. Dispositif de détection du poids de l'occupant dans un système de retenue
WO1998022920A1 (fr) * 1996-11-22 1998-05-28 Breed Automotive Technology, Inc. Systeme de detection d'occupation de siege
EP0855307A2 (fr) * 1997-01-23 1998-07-29 Schlegel Systems, Inc. Système de détection à tissu conducteur
WO1998041424A1 (fr) * 1997-03-18 1998-09-24 Southwest Research Institute Detecteur de poids permettant de commander le deploiement d'un airbag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809074A1 (de) * 1988-03-18 1989-10-05 Audi Ag Sicherheitssystem fuer kraftfahrzeuge unter einbeziehung eines aufblasbaren aufprallschutzkissens
EP0796768A1 (fr) * 1996-03-21 1997-09-24 Trw Inc. Dispositif de détection du poids de l'occupant dans un système de retenue
WO1998022920A1 (fr) * 1996-11-22 1998-05-28 Breed Automotive Technology, Inc. Systeme de detection d'occupation de siege
EP0855307A2 (fr) * 1997-01-23 1998-07-29 Schlegel Systems, Inc. Système de détection à tissu conducteur
WO1998041424A1 (fr) * 1997-03-18 1998-09-24 Southwest Research Institute Detecteur de poids permettant de commander le deploiement d'un airbag

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002043984A2 (fr) * 2000-11-28 2002-06-06 Siemens Vdo Automotive Corporation Ensemble capteur de poids comportant un ressort de surcharge
WO2002043984A3 (fr) * 2000-11-28 2002-12-19 Siemens Automotive Corp Lp Ensemble capteur de poids comportant un ressort de surcharge
WO2002043985A3 (fr) * 2000-11-28 2003-02-06 Siemens Automotive Corp Lp Ensemble capteur pour mesurer le poids applique sur un siege de vehicule
US6759603B2 (en) 2000-11-28 2004-07-06 Siemens Vdo Automotive Corporation Weight sensor assembly with overload spring
US6882281B2 (en) 2000-11-28 2005-04-19 Siemens Vdo Automotive Corporation Sensor assembly for measuring weight applied to a vehicle seat
US7047825B2 (en) 2000-11-28 2006-05-23 Siemens Vdo Automotive Corporation Sensor assembly for measuring weight applied to a vehicle seat
US6950031B2 (en) 2001-05-01 2005-09-27 Bizerba Gmbh & Co. Kg Device and method for detecting and preprocessing weights acting on a vehicle seat
CN103057488A (zh) * 2012-12-24 2013-04-24 朱佩芬 车载儿童安全保障方法

Also Published As

Publication number Publication date
CN1341061A (zh) 2002-03-20
BR0008484A (pt) 2002-01-29
JP2002537174A (ja) 2002-11-05
KR20020005594A (ko) 2002-01-17
EP1156944A1 (fr) 2001-11-28

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