EP1889021A1 - Dispositif et procede pour detecter l'occupation d'un siege - Google Patents

Dispositif et procede pour detecter l'occupation d'un siege

Info

Publication number
EP1889021A1
EP1889021A1 EP06763423A EP06763423A EP1889021A1 EP 1889021 A1 EP1889021 A1 EP 1889021A1 EP 06763423 A EP06763423 A EP 06763423A EP 06763423 A EP06763423 A EP 06763423A EP 1889021 A1 EP1889021 A1 EP 1889021A1
Authority
EP
European Patent Office
Prior art keywords
sensor
seat
weight
seat occupancy
sensor signals
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.)
Withdrawn
Application number
EP06763423A
Other languages
German (de)
English (en)
Inventor
Michael Krempl
Gerhard Wild
Jürgen ZACHERL
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.)
Continental Automotive GmbH
Original Assignee
Siemens VDO Automotive AG
VDO Automotive AG
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 VDO Automotive AG, VDO Automotive AG filed Critical Siemens VDO Automotive AG
Publication of EP1889021A1 publication Critical patent/EP1889021A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • 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
    • 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
    • B60R21/01526—Passenger detection systems using force or pressure sensing means using piezoelectric elements
    • 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
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01532—Passenger detection systems using field detection presence sensors using electric or capacitive field sensors
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/48—Temperature-compensating arrangements

Definitions

  • US Pat. No. 2001/0040056 A1 shows several embodiments of a similar arrangement, except that in comparison to the subject matter of DE 200 14 200 U1 the sensor signals can not be tapped on each sensor element but only as a total signal of one or more networks of parallel interconnected resistance elements.
  • Weight-dependent variable resistors as sensor elements are usually introduced between two laminated carrier foils.
  • the sensor elements enclose a cavity in which opposing conductive layers arranged on the films are introduced, which approach each other under the action of pressure and, upon further increase of the pressure, finally contact each other in a planar manner, thereby a pressure-dependent change in the electrical resistance between two contacts on the sensor elements can be tapped.
  • the sensor signals are lower at low ambient temperatures than at high temperatures. This can lead to the following problems: due to the sensor signals, the device for seat occupancy detection may no longer be detected at very low, in particular negative temperatures due to a person on the motor vehicle, in particular in the case of very light persons. On the other hand, a person may be falsely recognized on the vehicle seat at higher temperatures, although there is no person there. This can for example already be effected by a taut seat cover. This is referred to as a preload which, although measured, is not caused by a weight resting on the sensor elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour détecter l'occupation d'un siège. A cet effet, le dispositif selon l'invention comprend des premiers (A) et des deuxièmes (B) éléments de détection qui sont respectivement associés à une surface (2) d'un siège (1), et au niveau desquels des premiers et des deuxièmes signaux de détection (S), qui dépendent du poids, sont prélevés électriquement. Selon l'invention, soit les premiers signaux de détection (S), soit les deuxièmes signaux de détection (S) sont pris en considération pour détecter l'occupation d'un siège, en fonction d'une plage de températures ambiantes.
EP06763423A 2005-06-10 2006-05-31 Dispositif et procede pour detecter l'occupation d'un siege Withdrawn EP1889021A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005027041A DE102005027041B3 (de) 2005-06-10 2005-06-10 Vorrichtung und Verfahren zur Sitzbelegungserkennung
PCT/EP2006/062793 WO2006131483A1 (fr) 2005-06-10 2006-05-31 Dispositif et procede pour detecter l'occupation d'un siege

Publications (1)

Publication Number Publication Date
EP1889021A1 true EP1889021A1 (fr) 2008-02-20

Family

ID=36967285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06763423A Withdrawn EP1889021A1 (fr) 2005-06-10 2006-05-31 Dispositif et procede pour detecter l'occupation d'un siege

Country Status (6)

Country Link
US (1) US7782218B2 (fr)
EP (1) EP1889021A1 (fr)
JP (1) JP2008542777A (fr)
KR (1) KR20080031687A (fr)
DE (1) DE102005027041B3 (fr)
WO (1) WO2006131483A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047906A1 (de) * 2004-09-29 2006-04-13 Daimlerchrysler Ag Steuervorrichtung für ein Insassenschutzmittel eines Kraftfahrzeuges
DE102005014526A1 (de) * 2005-03-30 2006-10-05 Siemens Ag Vorrichtung und Verfahren zum Unterscheiden einer Person von einem Gegenstand auf einem Fahrzeugsitz
DE102008005573A1 (de) 2007-01-23 2008-07-24 C. Rob. Hammerstein Gmbh & Co. Kg Verfahren zur Betätigung eines Kraftfahrzeugssitzes und dafür geeigneter Kraftfahrzeugsitz
US20100123302A1 (en) * 2008-11-18 2010-05-20 Ford Global Technologies, Llc Inductive vehicle seat position sensor assembly
DE102009049368A1 (de) * 2009-10-14 2011-04-21 GM Global Technology Operations, Inc., Detroit Verfahren und Vorrichtung zur Vermeidung einer möglichen Kollision eines Objekts mit einer ersten Fahrzeugtüre eines stillstehenden Fahrzeugs
JP6078325B2 (ja) * 2012-12-17 2017-02-08 株式会社デンソー 乗員保護システム
US9546920B2 (en) * 2014-02-10 2017-01-17 Iee International Electronics & Engineering S.A. Temperature range optimized sensor system
US9227526B2 (en) 2014-02-27 2016-01-05 Delphi Technologies, Inc. Occupant detection device with temperature compensation
US9749740B2 (en) 2015-11-17 2017-08-29 Motorola Solutions, Inc. Method and apparatus for expanded temperature operation of a portable communication device
US10236972B2 (en) 2016-11-18 2019-03-19 Motorola Solutions, Inc. Method and apparatus for providing expanded interface operation between a portable communication device and an accessory
DE102022129625A1 (de) 2022-11-09 2024-05-16 Bayerische Motoren Werke Aktiengesellschaft Steuereinheit und Verfahren zur Erkennung einer Sitzplatzbelegung in einem Fahrzeug durch Temperaturvergleich

Family Cites Families (22)

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Publication number Priority date Publication date Assignee Title
JP2763701B2 (ja) * 1991-08-30 1998-06-11 株式会社オーバル 渦検出器
JPH0634402A (ja) * 1992-07-14 1994-02-08 Omron Corp 電圧変換装置及び物理量検出装置
JPH07103036A (ja) * 1993-09-30 1995-04-18 Yamaha Motor Co Ltd エンジンの空燃比制御装置
WO1998014345A2 (fr) * 1996-10-03 1998-04-09 I.E.E. International Electronics & Engineering S.A.R.L. Methode et dispositif pour determiner plusieurs parametres d'une personne assise sur un siege
US6056079A (en) * 1996-12-19 2000-05-02 Automotive Systems Laboratory, Inc. Automotive seat weight sensing system
JP3185705B2 (ja) * 1997-04-07 2001-07-11 株式会社豊田自動織機製作所 移動体の位置検出装置、流体圧シリンダ及び産業車両
US5987370A (en) * 1997-09-03 1999-11-16 Delco Electronics Corp. Vehicle occupant weight estimation apparatus having fluid-filled seat bladder
US20010040056A1 (en) * 1997-09-19 2001-11-15 Aloyse Schoos Method and device for determining several parameters of a person sitting on a seat
JP3683712B2 (ja) * 1998-06-05 2005-08-17 タカタ株式会社 シート重量計測装置
KR20010034684A (ko) * 1999-01-27 2001-04-25 후루까와 준노스께 승객검출장치
JP4002370B2 (ja) * 1999-07-05 2007-10-31 日産自動車株式会社 車両用重量検知装置
LU90437B1 (de) * 1999-09-08 2001-03-09 Iee Sarl Sensoreinrichtung und Verfahren zur Abfrage einer Sensoreinrichtung
DE19947733B4 (de) * 1999-10-05 2004-04-29 3Dconnexion Gmbh Einrichtung zum Erfassen und Auswerten von Kenndaten an einem Fahrzeugsitz sowie diesbezügliche Auswerteverfahren
DE20014200U1 (de) * 2000-08-17 2000-12-14 Siemens Ag Sensoranordnung
DE10047192A1 (de) * 2000-09-23 2002-05-02 Bosch Gmbh Robert Vorrichtung und Verfahren zur Klassifizierung einer auf einem Fahrzeugsitz sitzenden Person
DE10144878A1 (de) * 2001-09-12 2002-09-19 Bosch Gmbh Robert Insassenerkennungssystem
DE10163830A1 (de) 2001-12-22 2003-07-03 Ina Schaeffler Kg Schiebemuffe für eine Schalteinrichtung
US7046158B2 (en) * 2002-04-17 2006-05-16 Darrel Saunders Method and apparatus for sensing seat occupancy
US7026946B2 (en) * 2002-04-17 2006-04-11 Darrel Saunders Method and apparatus for sensing seat occupancy
DE50304946D1 (de) * 2003-04-23 2006-10-19 Delphi Tech Inc Insassenerkennungssystem für Fahrzeuge
CN100345707C (zh) * 2003-06-23 2007-10-31 Iee国际电子及工程股份有限公司 座位占用传感器
DE202005000018U1 (de) 2005-01-03 2005-03-24 Iee Sarl Sensormatte mit zwei Schaltniveaus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006131483A1 *

Also Published As

Publication number Publication date
JP2008542777A (ja) 2008-11-27
US7782218B2 (en) 2010-08-24
KR20080031687A (ko) 2008-04-10
DE102005027041B3 (de) 2006-11-16
US20080204263A1 (en) 2008-08-28
WO2006131483A1 (fr) 2006-12-14

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