JP6347582B2 - 回転検出装置、モータ制御装置、モータ被駆動装置、回転検出装置の補正方法および補正プログラム - Google Patents
回転検出装置、モータ制御装置、モータ被駆動装置、回転検出装置の補正方法および補正プログラム Download PDFInfo
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- G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
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Description
106a ステッピングモータ
106c エンコーダマグネット
106g 遮光壁部
106h フォトインタラプタ
107 ホールIC
111 レンズIC
Claims (12)
- モータの回転に伴って回転し、その回転方向に回転検出用パターンを形成する複数のパターン要素部が配置された回転部材と、
前記回転部材とともに前記パターン要素部が回転することに応じて変化する検出信号を出力する信号出力手段と、
前記回転部材における前記パターン要素部の配置誤差による前記回転部材の回転位置と前記検出信号の変化との関係の誤差の補正を行うための補正情報として、前記パターン要素部ごとに用意された複数の補正値を記憶した記憶手段と、
前記モータにより駆動される被駆動部材が原点位置に位置することを検出する原点検出手段と、
該原点検出手段により前記被駆動部材が前記原点位置に位置することが検出された原点状態での前記信号出力手段の検出信号に対応する前記回転部材の回転位置を基準位置として、前記各補正値を用いた前記補正を行う補正手段と、
前記補正手段による前記補正後の前記検出信号を用いて前記モータの駆動を制御する制御手段とを有することを特徴とするモータ制御装置。 - 前記記憶手段は、補正情報取得時の原点状態での検出信号を基準信号としてあらかじめ記憶し、
前記補正手段は、前記基準信号と、前記原点状態で得られた前記検出信号との差に基づいて、前記基準位置を補正することを特徴とする請求項1に記載のモータ制御装置。 - 前記記憶手段は、補正情報取得時の原点状態での温度を基準温度としてあらかじめ記憶し、
前記補正手段は、前記基準温度と、前記原点状態で得られた温度との差に基づいて前記基準位置を補正することを特徴とする請求項1または2に記載のモータ制御装置。 - 前記補正手段は、前記被駆動部材が前記原点位置に向かって駆動されているときには前記補正を行わないことを特徴とする請求項1から3のいずれか一項に記載のモータ制御装置。
- 前記補正手段は、前記被駆動部材が前記原点位置に向かって駆動されているときには前記補正値の平均値を用いて前記補正を行うことを特徴とする請求項1から3のいずれか一項に記載のモータ制御装置。
- 前記回転部材は、前記パターン要素としてS極の着磁部とN極の着磁部とが前記回転方向に交互に配置されることにより構成され、
前記信号出力手段は、前記回転部材とともに前記着磁部が回転することによる磁束密度の変化に応じて変化する前記検出信号を出力する磁気検出素子であることを特徴とする請求項1から5のいずれか一項に記載のモータ制御装置。 - 前記回転部材は、前記パターン要素として光を透過する透過部と非透過部が前記回転方向に交互に配置されるか、または光を反射する反射部と非反射部が前記回転方向に交互に配置されることにより構成され、
前記信号出力手段は、発光部からの光、及び該発光部から前記透過部または反射部を介して入射した光を検出する受光部とを有することを特徴とする請求項1から5のいずれか一項に記載のモータ制御装置。 - 前記補正値は、工場調整時に取得されることを特徴とする請求項1から7のいずれか一項に記載のモータ制御装置。
- モータと、
該モータにより駆動される被駆動部材と、
請求項1から8のいずれか一項に記載のモータ制御装置とを有することを特徴とするモータ被駆動装置。 - 前記被駆動部材が撮像に用いられる光学素子であることを特徴とする請求項9に記載のモータ被駆動装置。
- モータの回転に伴って回転し、その回転方向に回転検出用パターンを形成する複数のパターン要素部が配置された回転部材と、前記モータにより駆動される被駆動部材が原点位置に位置することを検出する原点検出手段とを有するモータ制御装置の制御方法であって、
前記原点検出手段により前記被駆動部材が前記原点位置に位置することを検出するステップと、
前記パターン要素部ごとに用意された複数の補正値を用いて、前記回転部材とともに前記パターン要素部が回転することにより検出される検出信号の変化と前記回転部材の回転位置との関係の誤差を補正するステップとを有し、
前記補正を、前記被駆動部材が前記原点位置に位置することが検出された原点状態での前記検出信号に対応する前記回転部材の回転位置を基準位置として行うことを特徴とするモータ制御装置の制御方法。 - モータの回転に伴って回転し、その回転方向に回転検出用パターンを形成する複数のパターン要素部が配置された回転部材と、前記モータにより駆動される被駆動部材が原点位置に位置することを検出する原点検出手段とを有するモータ制御装置における補正処理を行うコンピュータに、
前記原点検出手段により前記被駆動部材が前記原点位置に位置することを検出するステップと、
前記パターン要素部ごとに用意された複数の補正値を用いて、前記回転部材とともに前記パターン要素部が回転することにより検出される検出信号の変化と前記回転部材の回転位置との関係の誤差を補正するステップとを実行させるプログラムであって、
前記コンピュータに、前記補正を、前記被駆動部材が前記原点位置に位置することが検出された原点状態での前記検出信号に対応する前記回転部材の回転位置を基準位置として行わせることを特徴とするプログラム。
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US14/334,273 US9304019B2 (en) | 2013-07-19 | 2014-07-17 | Rotation detection apparatus, motor control apparatus, motor driven apparatus, method of correcting rotation detection apparatus, and non-transitory computer-readable storage medium storing correction program |
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CN108253883A (zh) * | 2018-01-31 | 2018-07-06 | 东莞市盘石机电科技有限公司 | 一种马达校正检测设备 |
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