JP4395745B2 - 乗員検知システムおよび乗員検知方法 - Google Patents
乗員検知システムおよび乗員検知方法 Download PDFInfo
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- JP4395745B2 JP4395745B2 JP2004281352A JP2004281352A JP4395745B2 JP 4395745 B2 JP4395745 B2 JP 4395745B2 JP 2004281352 A JP2004281352 A JP 2004281352A JP 2004281352 A JP2004281352 A JP 2004281352A JP 4395745 B2 JP4395745 B2 JP 4395745B2
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- Prior art keywords
- temperature
- sensor
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- information
- occupant detection
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- 238000001514 detection method Methods 0.000 title claims description 93
- 238000012937 correction Methods 0.000 claims description 35
- 238000013461 design Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/001—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays
- B60N3/002—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays of trays
- B60N3/004—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays of trays of foldable trays mounted on the back-rest
-
- 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
- B60R21/0152—Passenger detection systems using force or pressure sensing means using strain gauges
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Transportation (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Air Bags (AREA)
- Seats For Vehicles (AREA)
- Automotive Seat Belt Assembly (AREA)
Description
Claims (5)
- 複数の時点の温度情報を検出可能な温度センサと、
シートの荷重情報を検出可能な複数の荷重センサと、
単一の該温度センサから検出される該温度情報と、少なくとも二つの該荷重センサ各々の該温度センサに対する相対温度情報と、を基に、該荷重センサ各々の温度を推定する温度推定部と、
複数の時点の前記温度情報のうち、少なくとも二つの時点の該温度情報の差分を基に、該温度センサの温度変化の量および該温度変化の速度を判定する温度変化判定部と、
を備え、
前記温度変化判定部が、温度変化の量が大きくかつ該温度変化の速度が大きい、と判定した場合に、前記温度推定部は、前記温度センサと前記荷重センサとの温度差を補正演算し該荷重センサの前記温度を推定することを特徴とする乗員検知システム。 - 複数の時点の温度情報を検出可能な温度センサと、
シートの荷重情報を検出可能な複数の荷重センサと、
単一の該温度センサから検出される該温度情報と、少なくとも二つの該荷重センサ各々の該温度センサに対する相対温度情報と、を基に、該荷重センサ各々の温度を推定する温度推定部と、
前記温度推定部により推定された前記温度を基に、前記荷重センサの前記荷重情報を補正する荷重情報補正部と、を備えていることを特徴とする乗員検知システム。 - 複数の時点の温度情報を検出可能な温度センサと、
シートの荷重情報を検出可能な複数の荷重センサと、
単一の該温度センサから検出される該温度情報と、少なくとも二つの該荷重センサ各々の該温度センサに対する相対温度情報と、を基に、該荷重センサ各々の温度を推定する温度推定部と、
前記温度推定部により推定された前記温度を基に、前記シートの乗員を判別するための乗員判別しきい値を補正するしきい値補正部と、を備えていることを特徴とする乗員検知システム。 - 複数の時点の温度情報を検出可能な温度センサと、
シートの荷重情報を検出可能な複数の荷重センサと、
単一の該温度センサから検出される該温度情報と、少なくとも二つの該荷重センサ各々の該温度センサに対する相対温度情報と、を基に、該荷重センサ各々の温度を推定する温度推定部と、を備えてなる乗員検知システムにおいて、
前記温度センサは、乗員検知ECUに一つ配置され、
前記荷重センサは、該乗員検知ECUから独立して、前記シートのヒップポイント設計点を中心に、前右部分、前左部分、後右部分、後左部分に対応する位置に、四つ配置され、
さらに、前記温度推定部は、前記前右部分および前記前左部分の二つの前記荷重センサの温度、および前記後右部分および前記後左部分の二つの前記荷重センサの温度を、各々まとめて推定することを特徴とする乗員検知システム。 - 複数の時点の温度情報を検出可能な温度センサと、
シートの荷重情報を検出可能な複数の荷重センサと、を備え、
単一の前記温度センサから検出される前記温度情報と、少なくとも二つの前記荷重センサ各々の該温度センサに対する相対温度情報と、を基に、該荷重センサ各々の温度を推定する乗員検知システムの乗員検知方法において、
複数の時点の前記温度情報のうち、少なくとも二つの時点の該温度情報の差分を基に、該温度センサの温度変化の量および該温度変化の速度を判定し、
前記温度変化の量が大きくかつ該温度変化の速度が大きい、と判定した場合に、前記温度センサと前記荷重センサとの温度差を補正演算し、
該荷重センサの前記温度を推定することを特徴とする乗員検知方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004281352A JP4395745B2 (ja) | 2004-09-28 | 2004-09-28 | 乗員検知システムおよび乗員検知方法 |
US11/220,528 US7460939B2 (en) | 2004-09-28 | 2005-09-08 | System and method for detecting occupant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004281352A JP4395745B2 (ja) | 2004-09-28 | 2004-09-28 | 乗員検知システムおよび乗員検知方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006098083A JP2006098083A (ja) | 2006-04-13 |
JP4395745B2 true JP4395745B2 (ja) | 2010-01-13 |
Family
ID=36143937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004281352A Expired - Fee Related JP4395745B2 (ja) | 2004-09-28 | 2004-09-28 | 乗員検知システムおよび乗員検知方法 |
Country Status (2)
Country | Link |
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US (1) | US7460939B2 (ja) |
JP (1) | JP4395745B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8775022B2 (en) * | 2012-11-13 | 2014-07-08 | Toyota Motor Engineering & Manufacturing North America, Inc. | Methods and systems providing seat ventilation |
JP6399414B2 (ja) | 2016-10-03 | 2018-10-03 | 本田技研工業株式会社 | 乗員検知システム |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4464725A (en) * | 1981-05-19 | 1984-08-07 | Setra Systems, Inc. | Temperature compensated measuring system |
JPS61129532A (ja) * | 1984-11-29 | 1986-06-17 | Tokyo Electric Co Ltd | ロ−ドセル秤 |
JPH0695969B2 (ja) | 1985-09-02 | 1994-11-30 | 日産自動車株式会社 | 空気圧制御式シ−ト |
JP2001522750A (ja) * | 1997-11-12 | 2001-11-20 | シーメンス オートモーティヴ コーポレイション | 車両の乗員の重量及び位置を求める方法及び装置 |
US6076853A (en) * | 1997-11-13 | 2000-06-20 | Automotive Systems Laboratory, Inc. | Altitude/temperature compensation for a gas-filled weight sensor |
DE10047192A1 (de) * | 2000-09-23 | 2002-05-02 | Bosch Gmbh Robert | Vorrichtung und Verfahren zur Klassifizierung einer auf einem Fahrzeugsitz sitzenden Person |
US6467361B2 (en) * | 2001-03-20 | 2002-10-22 | Cts Corporation | Strain gage sensor having an unstrained area |
JP2003014564A (ja) | 2001-06-28 | 2003-01-15 | Fujitsu Ten Ltd | シートセンサ、及び乗員検知システム |
EP1470968B1 (de) * | 2003-04-23 | 2006-09-06 | Delphi Technologies, Inc. | Insassenerkennungssystem für Fahrzeuge |
-
2004
- 2004-09-28 JP JP2004281352A patent/JP4395745B2/ja not_active Expired - Fee Related
-
2005
- 2005-09-08 US US11/220,528 patent/US7460939B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7460939B2 (en) | 2008-12-02 |
US20060075834A1 (en) | 2006-04-13 |
JP2006098083A (ja) | 2006-04-13 |
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