WO2002043984A3 - Weight sensor assembly with overload spring - Google Patents

Weight sensor assembly with overload spring Download PDF

Info

Publication number
WO2002043984A3
WO2002043984A3 PCT/US2001/048762 US0148762W WO0243984A3 WO 2002043984 A3 WO2002043984 A3 WO 2002043984A3 US 0148762 W US0148762 W US 0148762W WO 0243984 A3 WO0243984 A3 WO 0243984A3
Authority
WO
WIPO (PCT)
Prior art keywords
weight
vehicle
weight sensor
seat
strain gage
Prior art date
Application number
PCT/US2001/048762
Other languages
French (fr)
Other versions
WO2002043984A2 (en
Inventor
Brian M Curtis
Jeffrey A Clark
Original Assignee
Siemens Automotive Corp Lp
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 Corp Lp filed Critical Siemens Automotive Corp Lp
Priority to DE60112963T priority Critical patent/DE60112963T2/en
Priority to EP01990220A priority patent/EP1339563B1/en
Publication of WO2002043984A2 publication Critical patent/WO2002043984A2/en
Publication of WO2002043984A3 publication Critical patent/WO2002043984A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
    • G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S177/00—Weighing scales
    • Y10S177/09—Scale bearings

Abstract

A vehicle seat assembly (12) is mounted to a vehicle base member (24) such as a riser or a vehicle floor. Weight sensor assemblies (32) for measuring weight on the vehicle seat (12) are mounted to a seat structural component. The weight sensor assemblies (32) each include plate (44) having a bendable center body portion (46) for supporting a strain gage (48). The strain gage (48) measures bending in the center body portion caused by normal weight force applications on the vehicle seat (12). A secondary resilient beam member (34) is mounted between each weight sensor (32) and the vehicle base member (24). The beam member (34) and the weight sensors (32) deflect to prevent failure of the weight sensors (32) in response to an overload force applied in an opposite direction to the direction of a normal weight force application. The beam member (34) prevents permanent deformation of the plate (44) and strain gage (48) failure by allowing the weight sensor (32) to deflect upwardly away from the vehicle floor. An overload stop (68) reacts between the seat structural component and the vehicle floor to prevent seat separation under overload conditions.
PCT/US2001/048762 2000-11-28 2001-10-30 Weight sensor assembly with overload spring WO2002043984A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE60112963T DE60112963T2 (en) 2000-11-28 2001-10-30 WEIGHT SENSOR ARRANGEMENT WITH OVERLOAD SPRING
EP01990220A EP1339563B1 (en) 2000-11-28 2001-10-30 Weight sensor assembly with overload spring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25039400P 2000-11-28 2000-11-28
US60/250,394 2000-11-28

Publications (2)

Publication Number Publication Date
WO2002043984A2 WO2002043984A2 (en) 2002-06-06
WO2002043984A3 true WO2002043984A3 (en) 2002-12-19

Family

ID=22947551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/048762 WO2002043984A2 (en) 2000-11-28 2001-10-30 Weight sensor assembly with overload spring

Country Status (4)

Country Link
US (1) US6759603B2 (en)
EP (1) EP1339563B1 (en)
DE (1) DE60112963T2 (en)
WO (1) WO2002043984A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152698A1 (en) * 2001-10-19 2003-04-30 Hammerstein Gmbh C Rob Detection device for the weight load of a motor vehicle seat, with a sensor and a spring body
JP2003177052A (en) * 2001-12-13 2003-06-27 Takata Corp Apparatus for measuring sheet weight
AU2003255011A1 (en) 2003-03-05 2004-09-28 Kabushiki Kaisha Imasen Denki Seisakusho On-board person load sensor
JP3975955B2 (en) * 2003-03-31 2007-09-12 株式会社デンソー Crew identification device
US7143658B2 (en) * 2003-11-04 2006-12-05 Delphi Technologies, Inc. Deflection plate weight sensor for vehicle seat
CZ304560B6 (en) * 2007-06-26 2014-07-09 České Vysoké Učení Technické V Praze Fakulta Strojní, Výzkumné Centrum Spalovacích Motorů A Automobilů Josefa Božka Strain-gauge sensing element
JP5151944B2 (en) * 2008-12-09 2013-02-27 セイコーエプソン株式会社 Optical filter and optical module including the same
CN105251072B (en) * 2009-12-24 2017-08-25 昆山韦睿医疗科技有限公司 A kind of dialysis system
LU92011B1 (en) 2012-05-30 2013-12-02 Iee Sarl Vehicle seat suspension mat
LU92013B1 (en) * 2012-05-30 2013-12-02 Iee Sarl Vehicle seat suspension mat
US9778122B2 (en) * 2013-08-01 2017-10-03 Mts Systems Corporation Two-axis sensor body for a load transducer
US10591373B2 (en) 2013-08-01 2020-03-17 Mts Systems Corporation Load transducer having a biasing assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022920A1 (en) * 1996-11-22 1998-05-28 Breed Automotive Technology, Inc. Seat occupant sensing system
US5971432A (en) * 1997-02-15 1999-10-26 Breed Automotive Technology, Inc. Seat occupant sensing system
US6039344A (en) * 1998-01-09 2000-03-21 Trw Inc. Vehicle occupant weight sensor apparatus
WO2000050255A1 (en) * 1999-02-24 2000-08-31 Siemens Automotive Corporation Method and apparatus for sensing seat occupant weight

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022976A (en) 1960-09-06 1962-02-27 Yee C Zia Safety adjustable-seat mounting for front seat of a vehicle
US4095659A (en) * 1976-06-10 1978-06-20 Eldec Corporation Deflection-restrained load cell for on-board vehicle weighing systems
JPS61262621A (en) * 1985-05-16 1986-11-20 Tokyo Electric Co Ltd Load cell balance
US5232243A (en) 1991-04-09 1993-08-03 Trw Vehicle Safety Systems Inc. Occupant sensing apparatus
US5600104A (en) * 1993-10-20 1997-02-04 Structural Instrumentation, Inc. Load cell having reduced sensitivity to non-symmetrical beam loading
US5810392A (en) 1997-02-15 1998-09-22 Breed Automotive Technology, Inc. Seat occupant sensing system
EP1028867B1 (en) 1997-11-12 2001-10-17 Siemens Automotive Corporation A method and system for determining weight and position of a vehicle seat occupant
US5942695A (en) 1997-12-22 1999-08-24 Delco Electronics Corp Method and apparatus for measuring seat loading by strain gauge
US6092838A (en) 1998-04-06 2000-07-25 Walker; Robert R. System and method for determining the weight of a person in a seat in a vehicle
JP3655745B2 (en) 1998-04-16 2005-06-02 タカタ株式会社 Seat weight measuring device
JP3683712B2 (en) 1998-06-05 2005-08-17 タカタ株式会社 Seat weight measuring device
DE20004393U1 (en) 1999-03-09 2000-08-03 Takata Corp Seat weight measuring device
JP2001041813A (en) 1999-07-27 2001-02-16 Takata Corp Sheet weight-measuring device
US6161891A (en) * 1999-10-21 2000-12-19 Cts Corporation Vehicle seat weight sensor
US6448512B1 (en) * 2000-08-22 2002-09-10 Trw Inc. Weight sensing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022920A1 (en) * 1996-11-22 1998-05-28 Breed Automotive Technology, Inc. Seat occupant sensing system
US5971432A (en) * 1997-02-15 1999-10-26 Breed Automotive Technology, Inc. Seat occupant sensing system
US6039344A (en) * 1998-01-09 2000-03-21 Trw Inc. Vehicle occupant weight sensor apparatus
WO2000050255A1 (en) * 1999-02-24 2000-08-31 Siemens Automotive Corporation Method and apparatus for sensing seat occupant weight

Also Published As

Publication number Publication date
US20020062998A1 (en) 2002-05-30
DE60112963D1 (en) 2005-09-29
DE60112963T2 (en) 2006-02-23
EP1339563B1 (en) 2005-08-24
EP1339563A2 (en) 2003-09-03
US6759603B2 (en) 2004-07-06
WO2002043984A2 (en) 2002-06-06

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