JP5217307B2 - 車両用ヘッドレスト装置 - Google Patents
車両用ヘッドレスト装置 Download PDFInfo
- Publication number
- JP5217307B2 JP5217307B2 JP2007232121A JP2007232121A JP5217307B2 JP 5217307 B2 JP5217307 B2 JP 5217307B2 JP 2007232121 A JP2007232121 A JP 2007232121A JP 2007232121 A JP2007232121 A JP 2007232121A JP 5217307 B2 JP5217307 B2 JP 5217307B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- headrest
- head
- vehicle
- capacitance sensor
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims description 29
- 238000013459 approach Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 20
- 230000008859 change Effects 0.000 description 14
- 239000003990 capacitor Substances 0.000 description 13
- 230000035945 sensitivity Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000004044 response Effects 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
- B60N2/4279—Seats or parts thereof displaced during a crash characterised by the triggering system electric or electronic triggering
-
- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
- B60N2/0276—Non-manual adjustments, e.g. with electrical operation with logic circuits reaction to emergency situations, e.g. crash
-
- 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
- B60N2/80—Head-rests
- B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Description
め、CPU21は、予め静電容量センサ14の単位移動量あたりの容量変化を検出し、その結果に応じて閾値Vthを切り替える。誘電率が高い場合の方が、静電容量の変化量が大きくなるため、誘電率が低い場合よりも閾値Vthは高く設定される。
10 車両用ヘッドレスト装置
11 ヘッドレスト後部
12 ヘッドレスト前部
12A 全閉位置
12B 全開位置
13 モータ(駆動手段)
14 静電容量センサ
20 制御装置(ECU)
21 CPU
27 第1フィルタ
28 第2フィルタ
Claims (3)
- シートバックに対して支持されたヘッドレスト後部と、
前記ヘッドレスト後部に対して近接した全閉位置と同ヘッドレスト後部に対して離間した全開位置との間で進退自在なヘッドレスト前部と、
前記ヘッドレスト前部を移動させる駆動手段と、
乗員の頭部への接近に伴って静電容量が変化する静電容量センサと、
後方車両の接近情報を受けて、前記ヘッドレスト前部を前記全開位置へと移動させると共に、前記静電容量センサからの検出信号に基づいて前記乗員の頭部を検出した場合に前記ヘッドレスト前部の移動を停止させるように前記駆動手段を制御する制御手段とを備えたヘッドレスト装置において、
前記制御手段は、第1カットオフ周波数を有するローパスの第1フィルタと、前記第1カットオフ周波数よりも低い第2カットオフ周波数を有する第2フィルタとを備え、前記静電容量センサの作動と同時に、前記第1フィルタ及び前記第2フィルタの作動を開始し、前記第1フィルタ及び前記第2フィルタを用いて頭部を検出することを特徴とする車両用ヘッドレスト装置。 - 前記制御手段は、前記第1フィルタを最初の所定時間作動させ、該所定時間後は前記第1フィルタの作動を停止し、前記第2フィルタを用いて頭部を検出することを特徴とする請求項1に記載の車両用ヘッドレスト装置。
- 前記制御手段は、前記乗員の頭部を検出すると前記第1フィルタ及び前記第2フィルタの作動を停止した後に前記静電容量センサの作動を停止することを特徴とする請求項1又は2に記載の車両用ヘッドレスト装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007232121A JP5217307B2 (ja) | 2007-09-07 | 2007-09-07 | 車両用ヘッドレスト装置 |
EP08163778A EP2033840B1 (en) | 2007-09-07 | 2008-09-05 | Headrest apparatus for vehicle |
DE602008003167T DE602008003167D1 (de) | 2007-09-07 | 2008-09-05 | Kopfstützenvorrichtung für ein Fahrzeug |
US12/205,179 US8103415B2 (en) | 2007-09-07 | 2008-09-05 | Headrest apparatus for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007232121A JP5217307B2 (ja) | 2007-09-07 | 2007-09-07 | 車両用ヘッドレスト装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009061948A JP2009061948A (ja) | 2009-03-26 |
JP5217307B2 true JP5217307B2 (ja) | 2013-06-19 |
Family
ID=39884255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007232121A Expired - Fee Related JP5217307B2 (ja) | 2007-09-07 | 2007-09-07 | 車両用ヘッドレスト装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8103415B2 (ja) |
EP (1) | EP2033840B1 (ja) |
JP (1) | JP5217307B2 (ja) |
DE (1) | DE602008003167D1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004042959A1 (de) * | 2004-09-02 | 2006-03-09 | Robert Bosch Gmbh | Passagierschutzeinrichtung in einem Fahrzeug |
JP4306673B2 (ja) * | 2005-11-08 | 2009-08-05 | トヨタ自動車株式会社 | 乗員保護装置 |
JP2008081088A (ja) * | 2006-09-29 | 2008-04-10 | Aisin Seiki Co Ltd | ヘッドレスト調整装置及び方法 |
US8205941B2 (en) | 2008-07-30 | 2012-06-26 | Trw Vehicle Safety Systems Inc. | Active head restraint for a vehicle seat |
US9775195B2 (en) * | 2008-08-15 | 2017-09-26 | Tk Holdings Inc. | Capacitive sensing system |
KR20110123284A (ko) * | 2009-03-10 | 2011-11-14 | 가부시키가이샤후지쿠라 | 헤드레스트 위치조정장치 및 헤드레스트 위치조정방법 |
US8678502B2 (en) * | 2009-10-19 | 2014-03-25 | Fujikura Ltd. | Headrest position adjustment device |
WO2011162075A1 (ja) * | 2010-06-23 | 2011-12-29 | 株式会社フジクラ | ヘッドレストと頭部との間の距離測定装置およびこれを用いたヘッドレスト位置調整装置、ならびにヘッドレストと頭部との間の距離測定方法およびこれを用いたヘッドレスト位置調整方法 |
JP5652064B2 (ja) * | 2010-09-02 | 2015-01-14 | アイシン精機株式会社 | 乗員検知システムの記憶装置 |
DE102012025037C5 (de) * | 2012-12-20 | 2017-10-26 | I.G. Bauerhin Gmbh | Verfahren zur kapazitiven Sitzbelegungserkennung für Fahrzeugsitze |
KR101576377B1 (ko) * | 2014-07-01 | 2015-12-11 | 현대다이모스(주) | 헤드레스트 리클라이닝 모듈 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2661693B2 (ja) * | 1987-10-27 | 1997-10-08 | アイシン精機株式会社 | 人員検出装置 |
US8818647B2 (en) * | 1999-12-15 | 2014-08-26 | American Vehicular Sciences Llc | Vehicular heads-up display system |
EP1284215A3 (en) | 2001-08-13 | 2006-01-18 | Nissan Motor Co., Ltd. | Headrest apparatus for vehicle |
US6654671B2 (en) * | 2002-02-15 | 2003-11-25 | Delphi Technologies, Inc. | Vehicle rollover detection having variable sensitivity |
US20050023810A1 (en) * | 2003-07-30 | 2005-02-03 | Basir Otman Adam | Occupant and child seat detection device |
EP2113198B1 (en) * | 2004-03-25 | 2012-07-11 | Delta Tooling Co., Ltd. | Load body state judgment device, vehicle seat, and computer program |
WO2006062098A1 (ja) * | 2004-12-09 | 2006-06-15 | Toyota Boshoku Kabushiki Kaisha | ヘッドレスト制御システム |
JP4654815B2 (ja) * | 2005-07-26 | 2011-03-23 | アイシン精機株式会社 | 車両用ヘッドレスト装置 |
JP4306673B2 (ja) | 2005-11-08 | 2009-08-05 | トヨタ自動車株式会社 | 乗員保護装置 |
JP4723996B2 (ja) | 2005-12-26 | 2011-07-13 | アイシン精機株式会社 | ヘッドレスト装置 |
US20070168097A1 (en) * | 2006-01-18 | 2007-07-19 | Automotive Systems Laboratory, Inc. | Discrete hardware safing circuit |
JP4342521B2 (ja) * | 2006-01-30 | 2009-10-14 | アイシン精機株式会社 | ヘッドレスト装置 |
US7805231B2 (en) * | 2006-06-29 | 2010-09-28 | Delphi Technologies, Inc. | Integrated vehicle crash sensing system and method |
EP2288895B1 (en) * | 2008-06-18 | 2020-03-18 | TRW Automotive U.S. LLC | Method and apparatus for determining a vehicle pitch-over condition |
US8408645B2 (en) * | 2009-06-14 | 2013-04-02 | GM Global Technology Operations LLC | Active head restraint utilizing solenoid activation and bar linkage transmission |
-
2007
- 2007-09-07 JP JP2007232121A patent/JP5217307B2/ja not_active Expired - Fee Related
-
2008
- 2008-09-05 EP EP08163778A patent/EP2033840B1/en not_active Expired - Fee Related
- 2008-09-05 US US12/205,179 patent/US8103415B2/en not_active Expired - Fee Related
- 2008-09-05 DE DE602008003167T patent/DE602008003167D1/de active Active
Also Published As
Publication number | Publication date |
---|---|
US8103415B2 (en) | 2012-01-24 |
JP2009061948A (ja) | 2009-03-26 |
EP2033840B1 (en) | 2010-10-27 |
DE602008003167D1 (de) | 2010-12-09 |
EP2033840A2 (en) | 2009-03-11 |
EP2033840A3 (en) | 2009-09-16 |
US20090069985A1 (en) | 2009-03-12 |
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