JP4219919B2 - 乗員検知装置 - Google Patents
乗員検知装置 Download PDFInfo
- Publication number
- JP4219919B2 JP4219919B2 JP2005256093A JP2005256093A JP4219919B2 JP 4219919 B2 JP4219919 B2 JP 4219919B2 JP 2005256093 A JP2005256093 A JP 2005256093A JP 2005256093 A JP2005256093 A JP 2005256093A JP 4219919 B2 JP4219919 B2 JP 4219919B2
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- JP
- Japan
- Prior art keywords
- electrode
- capacitance
- occupant detection
- capacity
- detection device
- 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.)
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Description
C1 = (ε0×εr)×(A/d) … (1)
Vout = 1/(1+jωCtR)×Vin … (2)
ω = 2πf … (3)
Ct = (Ca×C1)/(Ca+C1) … (4)
2 … ECU
3 … 発振器
4 … 電流制限抵抗
5 … 第2の電極
6、7 … バッファ
8 … CPU
Claims (1)
- シート上に配置された第1の電極と、前記第1の電極に固定して設置された乗員検知部とからなる乗員検知装置において、
前記乗員検知部は、
交流信号を出力する交流信号発生手段と、
一端を前記交流信号発生手段の出力端に接続された抵抗と、
前記抵抗の他端に接続され、前記第1の電極の近傍に配置された第2の電極と、
前記第2の電極に接続され、前記第2の電極と大地のGNDとの間の容量を測定する容量測定手段と、
前記容量測定手段における測定容量から、前記第1の電極と大地のGNDとの間の容量を算出する演算をする演算手段と、
前記容量測定手段での測定容量を記憶する記憶手段とを具備し、前記第1の電極と前記抵抗とを配線により接続せずに、前記第1の電極と前記第2の電極とを容量性結合により電気的に接続させる事を特徴とする乗員検知装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005256093A JP4219919B2 (ja) | 2005-09-05 | 2005-09-05 | 乗員検知装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005256093A JP4219919B2 (ja) | 2005-09-05 | 2005-09-05 | 乗員検知装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007069647A JP2007069647A (ja) | 2007-03-22 |
JP4219919B2 true JP4219919B2 (ja) | 2009-02-04 |
Family
ID=37931505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005256093A Expired - Fee Related JP4219919B2 (ja) | 2005-09-05 | 2005-09-05 | 乗員検知装置 |
Country Status (1)
Country | Link |
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JP (1) | JP4219919B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5028460B2 (ja) * | 2009-09-28 | 2012-09-19 | 株式会社ホンダエレシス | 物体検知方法 |
JP5750399B2 (ja) * | 2012-04-24 | 2015-07-22 | オートリブ ディベロップメント エービー | センサベルト装置 |
-
2005
- 2005-09-05 JP JP2005256093A patent/JP4219919B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2007069647A (ja) | 2007-03-22 |
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