JP2014503419A - タイヤ荷重を判定するための圧電ベースのシステムおよび方法 - Google Patents
タイヤ荷重を判定するための圧電ベースのシステムおよび方法 Download PDFInfo
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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
- B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
- B60C23/064—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle comprising tyre mounted deformation sensors, e.g. to determine road contact area
-
- 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
- B60C23/041—Means for supplying power to the signal- transmitting means on the wheel
- B60C23/0411—Piezoelectric generators
-
- 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
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
-
- 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
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0489—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors for detecting the actual angular position of the monitoring device while the wheel is turning
-
- 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
- B60C23/0491—Constructional details of means for attaching the control device
- B60C23/0493—Constructional details of means for attaching the control device for attachment on the tyre
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
- Tires In General (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims (21)
- タイヤ荷重を電子的に判定する方法であって、
タイヤ内部のタイヤ空気圧を判定する工程と、
前記タイヤに提供される圧電センサーの出力を解析することによって、地面に隣接する接地面区域の範囲内での、前記タイヤの動作に関連する、1つ以上の接地面パラメーターを判定する工程と、
前記判定されたタイヤ空気圧および前記1つ以上の接地面パラメーターを、既知の値のデータベースと電子的に比較して、前記タイヤに関する、対応するタイヤ荷重値を判定する工程と、
前記タイヤに関する、前記判定された対応するタイヤ荷重値を、電子出力として提供する工程と、
を含む、方法。 - 前記1つ以上の接地面パラメーターが、前記圧電センサー内部に提供される複数個の圧電素子にそれぞれ関連する、複数個の接地面パラメーターを含む、請求項1に記載の方法。
- 前記1つ以上の接地面パラメーターが、接地面進入時間、接地面退出時間、総接地面時間、および接地面角度のうちの1つ以上を含む、請求項1に記載の方法。
- 前記1つ以上の接地面パラメーターが、前記圧電センサーから取得された生の信号の一次導関数の、最大値および最小値を特定することによって判定される、請求項3に記載の方法。
- 前記1つ以上の接地面パラメーターが、前記圧電センサーから取得された前記生の信号の二次導関数の、ゼロ交差を特定することによって判定される、請求項3に記載の方法。
- 前記1つ以上の接地面パラメーターが、動作中に地面と接触している、タイヤの角度方向部分を指示する、接地面角度を含む、請求項1に記載の方法。
- 前記タイヤの接地面を通過して移動する、前記圧電センサーの所定の反復に関する、前記接地面角度が、前記接地面進入時間から前記接地面退出時間を減算して、第1の差異を取得する工程と、タイヤの1回転に関する時間量を測定することによって、第2の差異を取得する工程と、前記第2の差異によって前記第1の差異を除算する工程とによって、判定される、請求項6に記載の方法。
- 前記タイヤ空気圧が、絶対圧力計を使用して判定される、請求項1に記載の方法。
- タイヤ空気圧を判定する工程が、タイヤ内部の圧力および温度の双方を測定することによって、絶対タイヤ空気圧を判定する工程を含む、請求項1に記載の方法。
- 前記タイヤ空気圧および前記1つ以上の接地面パラメーターを、前記タイヤから遠隔の場所に送信する工程を更に含む、請求項1に記載の方法。
- 前記圧電センサーとは別個の圧電素子から、前記タイヤ内部の様々な電子構成要素に、動作電力を提供する工程を更に含む、請求項1に記載の方法。
- タイヤ内部のタイヤ荷重を判定するための圧電システムであって、
タイヤ空気圧を測定するように構成される、センサーと、
前記タイヤが地面に沿って回転し、かつ荷重を支持している際の、前記タイヤ内部に存在する、接地面区域内への進入および接地面区域からの退出での、タイヤの変形を指示する、1つ以上の対応する電気信号を生成するように構成される、1つ以上の圧電素子と、
前記1つ以上の圧電素子から、前記電気信号出力を受け取り、1つ以上の接地面パラメーターを判定するための、第1マイクロプロセッサと、
参照テーブル格納用のメモリであって、前記参照テーブルが、タイヤ空気圧と接地面パラメーターとの既知の組み合わせを、タイヤ荷重値と相関させることにより、メモリ内に格納された前記参照テーブルに対する、前記タイヤ空気圧および前記1つ以上の接地面パラメーターの電子的比較が行なわれ、対応するタイヤ荷重値を判定することができる、メモリと、
前記判定された対応するタイヤ荷重値を、電子出力として中継するための、出力デバイスと、
を含む、圧電システム。 - 前記1つ以上の圧電素子が、共通の、実質的に平面的な表面上に提供され、かつタイヤのクラウンの真下の、タイヤの内部表面の横方向全体にわたって装着される、複数個の圧電素子を含む、請求項12に記載の圧電システム。
- 前記圧電システム内部の選択された電子構成要素のための電力を発生させるために使用される、追加的な圧電素子を更に含むことにより、タイヤの変形を指示する、1つ以上の対応する電子信号を生成するように構成される、前記1つ以上の圧電素子のうちのいずれもが、前記タイヤ内部での発電のために使用されない、請求項12に記載の圧電システム。
- 前記複数個の圧電素子が、選択されたタイヤのトレッド機構に対して位置合わせされる、選択された圧電素子を有する、直線状の配列に構成される、請求項14に記載の圧電システム。
- 前記システムが、タイヤ空気圧を測定するように構成される前記センサーと、前記1つ以上の圧電素子とを収容する、タイヤ内モジュールを含む、請求項12に記載の圧電システム。
- 前記タイヤ内モジュールがまた、前記第1マイクロプロセッサおよび無線送受信機も収容する、請求項16に記載の圧電システム。
- 前記システムが、車両内部の複数個のタイヤに関する、前記タイヤ空気圧および前記1つ以上の接地面パラメーターを、無線受信するように構成される、車両搭載システムを含む、請求項16に記載の圧電システム。
- 前記車両搭載システムが、前記参照テーブル格納用のメモリと、前記メモリに通信可能に結合され、メモリ内に格納された前記参照テーブルに対する、タイヤ空気圧および前記1つ以上の接地面パラメーターの前記電子的比較を実施して、対応するタイヤ荷重値を判定するように構成される、第2マイクロプロセッサとを含む、請求項18に記載の圧電システム。
- 前記1つ以上の接地面パラメーターが、複数個の圧電素子の全体にわたって取得されたデータ点の補間を含む、請求項12に記載の圧電システム。
- 前記1つ以上の接地面パラメーターが、前記1つ以上の圧電素子のそれぞれに関する、接地面進入時間、接地面退出時間、総接地面時間、および接地面角度のうちの1つ以上を含む、請求項12に記載の圧電システム。
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EP2658734A4 (en) | 2014-05-28 |
JP6076260B2 (ja) | 2017-02-08 |
US20130278406A1 (en) | 2013-10-24 |
US10000100B2 (en) | 2018-06-19 |
CN103347712B (zh) | 2015-11-25 |
EP2658734A1 (en) | 2013-11-06 |
BR112013016890A2 (pt) | 2016-10-25 |
EP2658734B1 (en) | 2016-06-29 |
CN103347712A (zh) | 2013-10-09 |
WO2012091719A1 (en) | 2012-07-05 |
BR112013016890A8 (pt) | 2018-01-02 |
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