JP5444085B2 - インデックスセンサ - Google Patents
インデックスセンサ Download PDFInfo
- Publication number
- JP5444085B2 JP5444085B2 JP2010078841A JP2010078841A JP5444085B2 JP 5444085 B2 JP5444085 B2 JP 5444085B2 JP 2010078841 A JP2010078841 A JP 2010078841A JP 2010078841 A JP2010078841 A JP 2010078841A JP 5444085 B2 JP5444085 B2 JP 5444085B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic flux
- reference position
- magnetic
- rotation angle
- steering shaft
- 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
12 回転体(ステアリングシャフト)
13 磁石(磁束発生手段)
14 磁気検出手段
15,35 演算手段
16,36 回転基準位置信号発生手段
Claims (2)
- 回転体の外周側の所定位置に取り付けられ径方向外方に向けて磁束を発生させる磁束発生手段と、
前記回転体を臨むことができる静止系の所定位置に設置され、前記磁束を前記回転体の回転軸に直交するY方向の磁束成分と、該Y方向の磁束成分と前記回転軸がなす面に直角なX方向の磁束成分とを独立に検出する磁気検出手段と、
前記磁気検出手段が検出した前記Y方向の磁束成分及びX方向の磁束成分から磁束の向きを演算する演算手段と、
前記磁束の向きに基づいて前記回転体の所定位置が静止系の所定位置から所定回転角範囲内にあることを示す回転基準位置信号を発生させる回転基準位置信号発生手段とを備え、
前記演算手段は、前記磁気検出手段が検出した二方向の磁束成分から前記回転角に対応する磁束の向き及び磁束密度を演算し、
前記回転基準位置信号発生手段は、前記磁束の向きが所定の範囲内の値であって、かつ、前記磁束密度が所定の閾値以上であるとき、回転基準位置信号を発生させる
ことを特徴とするインデックスセンサ。 - 前記磁気検出手段は、MR素子、GMR素子、若しくはホール素子のいずれかであることを特徴とする請求項1記載のインデックスセンサ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010078841A JP5444085B2 (ja) | 2010-03-30 | 2010-03-30 | インデックスセンサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010078841A JP5444085B2 (ja) | 2010-03-30 | 2010-03-30 | インデックスセンサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011209195A JP2011209195A (ja) | 2011-10-20 |
JP5444085B2 true JP5444085B2 (ja) | 2014-03-19 |
Family
ID=44940409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2010078841A Expired - Fee Related JP5444085B2 (ja) | 2010-03-30 | 2010-03-30 | インデックスセンサ |
Country Status (1)
Country | Link |
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JP (1) | JP5444085B2 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006046834A1 (de) * | 2006-10-02 | 2008-04-03 | Robert Bosch Gmbh | Steuergerät in einem Lenksystem eines Fahrzeugs |
JP2009222518A (ja) * | 2008-03-14 | 2009-10-01 | Tokai Rika Co Ltd | 磁気式位置検出装置 |
JP2009300262A (ja) * | 2008-06-13 | 2009-12-24 | Aisin Seiki Co Ltd | 変位検出装置 |
-
2010
- 2010-03-30 JP JP2010078841A patent/JP5444085B2/ja not_active Expired - Fee Related
Also Published As
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JP2011209195A (ja) | 2011-10-20 |
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