LU90035B1 - Probe device for detecting body position and applying control signal for vehicle airbag deployment - utilises reference signal, and emitting and receiving electrodes which are capacitatively coupled to body - Google Patents

Probe device for detecting body position and applying control signal for vehicle airbag deployment - utilises reference signal, and emitting and receiving electrodes which are capacitatively coupled to body

Info

Publication number
LU90035B1
LU90035B1 LU90035A LU90035A LU90035B1 LU 90035 B1 LU90035 B1 LU 90035B1 LU 90035 A LU90035 A LU 90035A LU 90035 A LU90035 A LU 90035A LU 90035 B1 LU90035 B1 LU 90035B1
Authority
LU
Luxembourg
Prior art keywords
emitting
receiving electrodes
body position
passenger
utilises
Prior art date
Application number
LU90035A
Other languages
French (fr)
Inventor
Laurent Lamesch
Aloyse Schoos
Original Assignee
Iee Sarl
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 Iee Sarl filed Critical Iee Sarl
Priority to LU90035A priority Critical patent/LU90035B1/en
Priority to DE69728489T priority patent/DE69728489T2/en
Priority to EP19970203279 priority patent/EP0838697B1/en
Priority to ES97203279T priority patent/ES2219726T3/en
Application granted granted Critical
Publication of LU90035B1 publication Critical patent/LU90035B1/en

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
    • B60R21/0153—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
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The system for detecting the body position of a front seat vehicle passenger in order to modify commands to an airbag uses the capacitative coupling between emitting electrodes (11,12), the passenger (10) and receiving electrodes (14,15,16). Signals transmitted by an emitting electrode are received at an intensity which depends on the distances between the passenger and both the emitting and receiving electrodes. Confusion with signals emanating from other vehicle equipment or from the environment is avoided by cyclic or repetitive signal modulation. Very rapid changes in passenger body position, for example during braking before a crash, may be detected and incorporated with the static measurements by using the frequency change in a reflected wave compared to an incident wave.
LU90035A 1996-10-25 1997-03-07 Probe device for detecting body position and applying control signal for vehicle airbag deployment - utilises reference signal, and emitting and receiving electrodes which are capacitatively coupled to body LU90035B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
LU90035A LU90035B1 (en) 1997-03-07 1997-03-07 Probe device for detecting body position and applying control signal for vehicle airbag deployment - utilises reference signal, and emitting and receiving electrodes which are capacitatively coupled to body
DE69728489T DE69728489T2 (en) 1996-10-25 1997-10-23 A conductive body detection device and application in a vehicle airbag control device
EP19970203279 EP0838697B1 (en) 1996-10-25 1997-10-23 Apparatus for probing a conductive body and its application in a vehicle-airbag control system
ES97203279T ES2219726T3 (en) 1996-10-25 1997-10-23 POLLING DEVICE OF A DRIVING BODY AND ITS APPLICATION TO THE CONTROL OF AN AIRBAG SYSTEM OF A VEHICLE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU90035A LU90035B1 (en) 1997-03-07 1997-03-07 Probe device for detecting body position and applying control signal for vehicle airbag deployment - utilises reference signal, and emitting and receiving electrodes which are capacitatively coupled to body

Publications (1)

Publication Number Publication Date
LU90035B1 true LU90035B1 (en) 1998-09-08

Family

ID=19731667

Family Applications (1)

Application Number Title Priority Date Filing Date
LU90035A LU90035B1 (en) 1996-10-25 1997-03-07 Probe device for detecting body position and applying control signal for vehicle airbag deployment - utilises reference signal, and emitting and receiving electrodes which are capacitatively coupled to body

Country Status (1)

Country Link
LU (1) LU90035B1 (en)

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