JP2019002835A - ポジションセンサ - Google Patents
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- JP2019002835A JP2019002835A JP2017118777A JP2017118777A JP2019002835A JP 2019002835 A JP2019002835 A JP 2019002835A JP 2017118777 A JP2017118777 A JP 2017118777A JP 2017118777 A JP2017118777 A JP 2017118777A JP 2019002835 A JP2019002835 A JP 2019002835A
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- 238000001514 detection method Methods 0.000 claims abstract description 284
- 238000012545 processing Methods 0.000 claims abstract description 36
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- 239000000696 magnetic material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 22
- 238000012986 modification Methods 0.000 description 22
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
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- 230000009955 peripheral mechanism Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- 238000004080 punching Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
- G01D5/2497—Absolute encoders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/24428—Error prevention
- G01D5/24433—Error prevention by mechanical means
- G01D5/24438—Special design of the sensing element or scale
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
Abstract
Description
以下、本発明の第1実施形態について図を参照して説明する。本実施形態に係るポジションセンサは、検出対象の位置がどの範囲(状態)にあるのかを検出し、その範囲に対応した信号を出力するセンサである。
本実施形態では、第1実施形態と異なる部分について説明する。本実施形態では、出力回路部126は、離散的な値の信号として、パルス幅が異なるパルス信号をコントローラ300に出力する。つまり、離散的な値の信号は、PWM方式の信号である。離散的な値は、パルス幅の値、信号の周期、Duty比等である。第1実施形態と同様に、ノイズに対する耐性を向上させることができる。
本実施形態では、第1、第2実施形態と異なる部分について説明する。本実施形態では、検出対象200の全体あるいは一部を磁石で構成し、ポジションセンサ100に磁石106、120を備えない構成としている。
上記各実施形態で示されたポジションセンサ100の構成は一例であり、上記で示した構成に限定されることなく、本発明を実現できる他の構成とすることもできる。例えば、ポジションセンサ100の用途は車両用に限られず、可動部品の位置を検出するものとして産業用ロボットや製造設備等にも広く利用できる。
122 検出部
123 信号処理部
124 検出素子
200 検出対象
201〜204 領域部
205 検出面
207 磁石
Claims (6)
- バイアス磁界を発生させる磁石(106、120)と、前記バイアス磁界が印加される検出素子(124)と、を有し、磁性体で構成された検出対象(200)の移動に伴って前記検出素子が前記検出対象から受ける磁界の変化に基づいて、前記検出対象の移動方向に沿って一方向に並んだ複数の範囲に対応すると共に位相差が異なる複数の検出信号を生成する検出部(122)と、
前記検出部から前記複数の検出信号を取得し、前記複数の検出信号と閾値とを比較し、前記複数の検出信号と前記閾値との大小関係の組み合わせに基づいて、前記複数の範囲のいずれかの範囲の位置として前記検出対象の位置を特定する信号処理部(123)と、
を備え、
前記検出対象は、前記複数の範囲に対応する複数の領域部(201〜204)を有し、
前記複数の領域部は、前記検出対象のうち前記検出部が対向する検出面(205)の面内で前記検出対象の移動方向に階段状に接続されて構成されているポジションセンサ。 - 磁石(207)を含んで構成された検出対象(200)の移動に伴って前記検出対象から受ける磁界の変化に基づいて、前記検出対象の移動方向に沿って一方向に並んだ複数の範囲に対応すると共に位相差が異なる複数の検出信号を生成する検出部(122)と、
前記検出部から前記複数の検出信号を取得し、前記複数の検出信号と閾値とを比較し、前記複数の検出信号と前記閾値との大小関係の組み合わせに基づいて、前記複数の範囲のいずれかの範囲の位置として前記検出対象の位置を特定する信号処理部(123)と、
を備え、
前記検出対象は、前記複数の範囲に対応する複数の領域部(201〜204)を有し、
前記複数の領域部は、前記検出対象のうち前記検出部が対向する検出面(205)の面内で前記検出対象の移動方向に階段状に接続されて構成されているポジションセンサ。 - 前記信号処理部は、前記複数の範囲にそれぞれ設定された離散的な値のうち前記特定した位置の範囲に対応した値の位置信号を外部装置(300)に出力する請求項1または2に記載のポジションセンサ。
- 前記離散的な値の位置信号は、電圧値が異なる電圧信号である請求項3に記載のポジションセンサ。
- 前記離散的な値の位置信号は、パルス幅が異なるパルス信号である請求項3に記載のポジションセンサ。
- 前記検出対象は、車両のシフトポジションの動作に連動して移動する可動部品である請求項1ないし5のいずれか1つに記載のポジションセンサ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017118777A JP6791033B2 (ja) | 2017-06-16 | 2017-06-16 | ポジションセンサ |
CN201880038378.7A CN110741231B (zh) | 2017-06-16 | 2018-05-17 | 位置传感器 |
PCT/JP2018/019061 WO2018230244A1 (ja) | 2017-06-16 | 2018-05-17 | ポジションセンサ |
DE112018003012.1T DE112018003012T5 (de) | 2017-06-16 | 2018-05-17 | Positionssensor |
US16/697,806 US11099034B2 (en) | 2017-06-16 | 2019-11-27 | Position sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017118777A JP6791033B2 (ja) | 2017-06-16 | 2017-06-16 | ポジションセンサ |
Publications (3)
Publication Number | Publication Date |
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JP2019002835A true JP2019002835A (ja) | 2019-01-10 |
JP2019002835A5 JP2019002835A5 (ja) | 2019-06-27 |
JP6791033B2 JP6791033B2 (ja) | 2020-11-25 |
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JP2017118777A Active JP6791033B2 (ja) | 2017-06-16 | 2017-06-16 | ポジションセンサ |
Country Status (5)
Country | Link |
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US (1) | US11099034B2 (ja) |
JP (1) | JP6791033B2 (ja) |
CN (1) | CN110741231B (ja) |
DE (1) | DE112018003012T5 (ja) |
WO (1) | WO2018230244A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020122721A (ja) * | 2019-01-31 | 2020-08-13 | 株式会社デンソー | ポジションセンサ |
WO2022092091A1 (ja) * | 2020-11-02 | 2022-05-05 | 株式会社デンソー | ポジションセンサ |
KR20220136198A (ko) | 2021-03-31 | 2022-10-07 | 아사히 가세이 일렉트로닉스 가부시끼가이샤 | 이벤트 검출 방법, 이벤트 검출 시스템 및 프로그램 |
Families Citing this family (3)
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JP2019002469A (ja) | 2017-06-14 | 2019-01-10 | 株式会社デンソー | ポジションセンサ |
JP6743770B2 (ja) | 2017-06-16 | 2020-08-19 | 株式会社デンソー | ポジションセンサ |
JP7279660B2 (ja) * | 2020-02-13 | 2023-05-23 | 株式会社デンソー | ポジションセンサ |
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2017
- 2017-06-16 JP JP2017118777A patent/JP6791033B2/ja active Active
-
2018
- 2018-05-17 DE DE112018003012.1T patent/DE112018003012T5/de active Pending
- 2018-05-17 WO PCT/JP2018/019061 patent/WO2018230244A1/ja active Application Filing
- 2018-05-17 CN CN201880038378.7A patent/CN110741231B/zh active Active
-
2019
- 2019-11-27 US US16/697,806 patent/US11099034B2/en active Active
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JPH0791908A (ja) * | 1993-09-22 | 1995-04-07 | Sony Corp | 位相検出装置及び回転ドラム装置 |
JPH09145305A (ja) * | 1995-11-29 | 1997-06-06 | Nippon Koden Corp | 角度検出装置 |
JPH11192853A (ja) * | 1998-01-06 | 1999-07-21 | Jidosha Kiki Co Ltd | 変速機制御装置 |
JP2003259623A (ja) * | 2002-03-06 | 2003-09-12 | Denso Corp | 信号伝送方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2020122721A (ja) * | 2019-01-31 | 2020-08-13 | 株式会社デンソー | ポジションセンサ |
WO2022092091A1 (ja) * | 2020-11-02 | 2022-05-05 | 株式会社デンソー | ポジションセンサ |
JP7422051B2 (ja) | 2020-11-02 | 2024-01-25 | 株式会社デンソー | ポジションセンサ |
KR20220136198A (ko) | 2021-03-31 | 2022-10-07 | 아사히 가세이 일렉트로닉스 가부시끼가이샤 | 이벤트 검출 방법, 이벤트 검출 시스템 및 프로그램 |
Also Published As
Publication number | Publication date |
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CN110741231A (zh) | 2020-01-31 |
US20200096367A1 (en) | 2020-03-26 |
JP6791033B2 (ja) | 2020-11-25 |
US11099034B2 (en) | 2021-08-24 |
CN110741231B (zh) | 2022-04-01 |
DE112018003012T5 (de) | 2020-03-05 |
WO2018230244A1 (ja) | 2018-12-20 |
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