JP4790527B2 - タイヤ情報検出装置 - Google Patents
タイヤ情報検出装置 Download PDFInfo
- Publication number
- JP4790527B2 JP4790527B2 JP2006199604A JP2006199604A JP4790527B2 JP 4790527 B2 JP4790527 B2 JP 4790527B2 JP 2006199604 A JP2006199604 A JP 2006199604A JP 2006199604 A JP2006199604 A JP 2006199604A JP 4790527 B2 JP4790527 B2 JP 4790527B2
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- JP
- Japan
- Prior art keywords
- frequency
- resonator
- resonance
- excitation signal
- signal
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0449—Passive transducers, e.g. using surface acoustic waves, backscatter technology or pressure sensitive resonators
Description
101 制御部
102 搬送波発振器
103 励振信号発振器
104 変調器
105、111 アンテナ
106 ミキサー
107 低域通過フィルタ(LPF)
108 復調器
109 強度測定部
110 周波数メモリ
Claims (7)
- 共振器を備え車両のタイヤに装着される測定値送信機と、車両本体に設けられ、前記測定値送信機に対して前記共振器を共振させるための励振信号を送信する一方、前記共振器の共振周波数に関わる共振信号を受信し、当該共振器の共振周波数に応じて測定値を算出するコントローラと、前記測定値送信機との先行する通信で得られた前記共振器の共振周波数を記録する周波数メモリと、を具備するタイヤ情報検出装置であって、前記コントローラは、前記励振信号の周波数を、前記周波数メモリに記録されている前記測定値送信機との先行する通信で得られる前記共振器の共振周波数に対応した周波数に決定することを特徴とするタイヤ情報検出装置。
- 前記コントローラは、前記励振信号の周波数を、前記測定値送信機との直前の通信で得られる前記共振器の共振周波数に基づいて決定することを特徴とする請求項1記載のタイヤ情報検出装置。
- 前記コントローラは、前記励振信号の周波数を、前記測定値送信機との直前の複数回の通信で得られる前記共振器の共振周波数の平均値に基づいて決定することを特徴とする請求項1記載のタイヤ情報検出装置。
- 前記コントローラは、前記励振信号の周波数を、前記測定値送信機との先行する通信で得られる前記共振器の共振周波数の代わりに、前記測定値送信機との先行する通信で前記共振器の共振周波数を得る際に使用した励振信号の周波数に基づいて決定することを特徴とする請求項1から請求項3のいずれかに記載のタイヤ情報検出装置。
- 前記コントローラは、前記決定した周波数の前記励振信号によって前記共振器の共振周波数に関わる共振信号を受信できない場合、前記励振信号の周波数を当該周波数の周辺の一定帯域内において順次変化させて決定することを特徴とする請求項1から請求項4のいずれかに記載のタイヤ情報検出装置。
- 前記コントローラは、前記決定した周波数の前記励振信号によって前記共振器の共振周波数に関わる共振信号を受信できない場合、前記励振信号の周波数を前記共振器の共振周波数が変動し得る帯域内において順次変化させて決定することを特徴とする請求項5記載のタイヤ情報検出装置。
- 前記共振器は、水晶共振器で構成されることを特徴とする請求項1から請求項6のいずれかに記載のタイヤ情報検出装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006199604A JP4790527B2 (ja) | 2006-07-21 | 2006-07-21 | タイヤ情報検出装置 |
EP07013607.2A EP1880873B1 (en) | 2006-07-21 | 2007-07-11 | Tire information detector |
US11/880,367 US7705718B2 (en) | 2006-07-21 | 2007-07-20 | Tire information detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006199604A JP4790527B2 (ja) | 2006-07-21 | 2006-07-21 | タイヤ情報検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008024177A JP2008024177A (ja) | 2008-02-07 |
JP4790527B2 true JP4790527B2 (ja) | 2011-10-12 |
Family
ID=38626805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006199604A Active JP4790527B2 (ja) | 2006-07-21 | 2006-07-21 | タイヤ情報検出装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7705718B2 (ja) |
EP (1) | EP1880873B1 (ja) |
JP (1) | JP4790527B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017058096A2 (en) * | 2015-10-02 | 2017-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Narrowband carrier searching |
US10516456B1 (en) * | 2018-10-30 | 2019-12-24 | Blackberry Limited | System and method to dynamically optimize antenna performance |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60220876A (ja) * | 1984-04-17 | 1985-11-05 | Meisei Electric Co Ltd | エコ−式移動体テレメ−タ方式 |
JP3075432B2 (ja) * | 1991-10-14 | 2000-08-14 | 株式会社デンソー | タイヤ監視装置 |
US5982279A (en) * | 1996-09-26 | 1999-11-09 | Denso Corporation | Tire air pressure detecting device |
US6362732B1 (en) * | 1997-01-15 | 2002-03-26 | Algonquin Scientific Llc | Tire pressure sensing system |
JP2002337521A (ja) * | 2001-05-18 | 2002-11-27 | Denso Corp | タイヤ空気圧推定装置 |
JP3659956B2 (ja) * | 2002-11-11 | 2005-06-15 | 松下電器産業株式会社 | 圧力測定装置および圧力測定システム |
US7086593B2 (en) * | 2003-04-30 | 2006-08-08 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Magnetic field response measurement acquisition system |
GB0403481D0 (en) * | 2004-02-17 | 2004-03-24 | Transense Technologies Plc | Interrogation method for passive sensor monitoring system |
JP4522765B2 (ja) * | 2004-06-30 | 2010-08-11 | アルプス電気株式会社 | タイヤ情報検出装置 |
JP2006076432A (ja) * | 2004-09-09 | 2006-03-23 | Alps Electric Co Ltd | タイヤ情報検出装置 |
US7405675B2 (en) * | 2006-01-19 | 2008-07-29 | Michelin Recherche Et Technique S. A. | System and method for reducing search time and increasing search accuracy during interrogation of resonant devices |
JP2007216857A (ja) * | 2006-02-17 | 2007-08-30 | Alps Electric Co Ltd | タイヤ情報検出装置 |
JP4934341B2 (ja) * | 2006-03-31 | 2012-05-16 | アルプス電気株式会社 | タイヤ情報検出装置 |
JP2007271471A (ja) * | 2006-03-31 | 2007-10-18 | Alps Electric Co Ltd | タイヤ情報検出装置 |
JP2007296907A (ja) * | 2006-04-28 | 2007-11-15 | Alps Electric Co Ltd | タイヤ情報検出装置 |
-
2006
- 2006-07-21 JP JP2006199604A patent/JP4790527B2/ja active Active
-
2007
- 2007-07-11 EP EP07013607.2A patent/EP1880873B1/en not_active Expired - Fee Related
- 2007-07-20 US US11/880,367 patent/US7705718B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1880873A2 (en) | 2008-01-23 |
EP1880873A3 (en) | 2011-09-21 |
US7705718B2 (en) | 2010-04-27 |
JP2008024177A (ja) | 2008-02-07 |
EP1880873B1 (en) | 2017-04-26 |
US20080169915A1 (en) | 2008-07-17 |
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