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AU2001249830A1 - Thickness measurement system and method for vehicle occupant detection - Google Patents

Thickness measurement system and method for vehicle occupant detection

Info

Publication number
AU2001249830A1
AU2001249830A1 AU2001249830A AU4983001A AU2001249830A1 AU 2001249830 A1 AU2001249830 A1 AU 2001249830A1 AU 2001249830 A AU2001249830 A AU 2001249830A AU 4983001 A AU4983001 A AU 4983001A AU 2001249830 A1 AU2001249830 A1 AU 2001249830A1
Authority
AU
Australia
Prior art keywords
antenna electrode
passenger
signal
measurement system
vehicle occupant
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.)
Abandoned
Application number
AU2001249830A
Inventor
James Frederick Kirksey
Shiuh-An Shieh
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.)
NEC Corp of America
Original Assignee
NEC America 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 NEC America Inc filed Critical NEC America Inc
Publication of AU2001249830A1 publication Critical patent/AU2001249830A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/04—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to presence or absence of the driver, e.g. to weight or lack thereof
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Air Bags (AREA)
  • Seats For Vehicles (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)

Abstract

A passenger detection system is provided. The passenger detection system utilizes an oscillation circuit that causes an antenna electrode to emit an electric field that is disrupted by the electrical characteristics of an object placed on the seat. This disruption alters the current and phase of the signal in the antenna electrode. By comparing the current flowing in the antenna electrode and/or the difference between the phase of the signal in the antenna electrode and the oscillation circuit output signal with predetermined threshold values, it is possible to detect the presence of a passenger in a reliable and inexpensive manner. The determination is made with a two layer electrode arrangement, including smaller and larger electrodes. The two layers allow calculation of an amount of compression on the seat. The amount of compression is used to characterize the passenger.
AU2001249830A 2000-04-06 2001-04-04 Thickness measurement system and method for vehicle occupant detection Abandoned AU2001249830A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US19559000P 2000-04-06 2000-04-06
US60195590 2000-04-06
US09/678,215 US6329914B1 (en) 1999-10-05 2000-09-29 Thickness measurement system and method for vehicle occupant detection
US09678215 2000-09-29
PCT/US2001/010894 WO2001078029A1 (en) 2000-04-06 2001-04-04 Thickness measurement system and method for vehicle occupant detection

Publications (1)

Publication Number Publication Date
AU2001249830A1 true AU2001249830A1 (en) 2001-10-23

Family

ID=26891114

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001249830A Abandoned AU2001249830A1 (en) 2000-04-06 2001-04-04 Thickness measurement system and method for vehicle occupant detection

Country Status (12)

Country Link
US (1) US6329914B1 (en)
EP (1) EP1194907B1 (en)
JP (1) JP4921676B2 (en)
KR (1) KR100508736B1 (en)
AT (1) ATE443307T1 (en)
AU (1) AU2001249830A1 (en)
BR (1) BR0105578A (en)
CA (1) CA2372592C (en)
DE (1) DE60139915D1 (en)
ES (1) ES2331870T3 (en)
MX (1) MXPA01012552A (en)
WO (1) WO2001078029A1 (en)

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US7151452B2 (en) * 2003-12-05 2006-12-19 Elesys North America Inc. Vehicle occupant sensing system
US7362225B2 (en) 2004-11-24 2008-04-22 Elesys North America Inc. Flexible occupant sensor and method of use
DE102006002919B4 (en) * 2005-01-24 2008-09-04 Denso Corp., Kariya Capacitive sensor and occupant detection system
JP4315388B2 (en) * 2005-04-13 2009-08-19 株式会社デンソー Occupant detection system
JP4564894B2 (en) * 2005-06-15 2010-10-20 株式会社日本自動車部品総合研究所 Occupant detection system
US20060283651A1 (en) * 2005-06-16 2006-12-21 Fultz William W Vehicle passenger detection apparatus with wireless acquisition of passenger-related data
JP2009503467A (en) * 2005-07-27 2009-01-29 イデント テクノロジー アーゲー Detection system especially for implementing safety systems
US7830246B2 (en) 2005-10-12 2010-11-09 Elesys North America, Inc. Occupant sensor and method for seat belt or other monitoring
US7791476B2 (en) * 2006-02-21 2010-09-07 Elesys North America, Inc. Occupant sensor and method for seat belt or other monitoring
US20070241895A1 (en) * 2006-04-13 2007-10-18 Morgan Kelvin L Noise reduction for flexible sensor material in occupant detection
JP4206110B2 (en) * 2006-08-11 2009-01-07 日本電信電話株式会社 Instruction signal generation method
US7598881B2 (en) * 2006-10-18 2009-10-06 Elesys North America, Inc. Sensor and circuit configuration for occupant detection
US7656169B2 (en) * 2007-02-06 2010-02-02 Iee International Electronics & Engineering S.A. Capacitive occupant detection system
JP4305519B2 (en) * 2007-02-07 2009-07-29 株式会社デンソー Two-electrode capacitive sensor, vehicle occupant detection device, and vehicle occupant protection system
JP5086113B2 (en) * 2008-01-24 2012-11-28 株式会社フジクラ Capacitive sensor
JP5655223B2 (en) 2009-01-30 2015-01-21 株式会社フジクラ Crew attitude detection device
US9283912B2 (en) * 2013-06-27 2016-03-15 Zodiac Cabin Controls Gmbh Airbag control unit
US9494623B2 (en) * 2013-10-01 2016-11-15 Hd Electric Company High-voltage detector monitoring system
WO2017166235A1 (en) * 2016-03-31 2017-10-05 深圳市柔宇科技有限公司 Sitting posture correction seat, system, and method
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Also Published As

Publication number Publication date
EP1194907B1 (en) 2009-09-16
MXPA01012552A (en) 2002-07-02
JP4921676B2 (en) 2012-04-25
DE60139915D1 (en) 2009-10-29
KR100508736B1 (en) 2005-08-18
CA2372592C (en) 2006-02-07
WO2001078029A1 (en) 2001-10-18
ATE443307T1 (en) 2009-10-15
KR20020025888A (en) 2002-04-04
US6329914B1 (en) 2001-12-11
CA2372592A1 (en) 2001-10-18
EP1194907A1 (en) 2002-04-10
EP1194907A4 (en) 2004-10-06
ES2331870T3 (en) 2010-01-19
JP2003530576A (en) 2003-10-14
BR0105578A (en) 2002-02-26

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