JP6590326B2 - 回転体感知装置 - Google Patents
回転体感知装置 Download PDFInfo
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- JP6590326B2 JP6590326B2 JP2018141722A JP2018141722A JP6590326B2 JP 6590326 B2 JP6590326 B2 JP 6590326B2 JP 2018141722 A JP2018141722 A JP 2018141722A JP 2018141722 A JP2018141722 A JP 2018141722A JP 6590326 B2 JP6590326 B2 JP 6590326B2
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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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
-
- 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
- G01D5/20—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 by varying inductance, e.g. by a movable armature
- G01D5/2006—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 by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
-
- 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
- G01D5/20—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 by varying inductance, e.g. by a movable armature
- G01D5/204—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 by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
-
- 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
- G01D5/243—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 phase or frequency of ac
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
- H03K2017/9706—Inductive element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94057—Rotary switches
- H03K2217/94068—Rotary switches with magnetic detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
20 被検出部
21 第1被検出部
22 第2被検出部
30 コイル部
31 第1センシングコイル
32 第2センシングコイル
40 回転情報算出部
410 発振部
420 周波数演算部
430 変化検出部
440 差演算部
450 補正演算部
460 変位検出部
Claims (15)
- 回転体に設けられる複数の被検出部と、
前記複数の被検出部に対向して配置される少なくとも2つのセンシングコイルと、
前記少なくとも2つのセンシングコイルとそれぞれ連結され、少なくとも2つの発振回路を形成する少なくとも2つのキャパシタを含む発振部と、
前記少なくとも2つの発振回路から出力される少なくとも2つの発振信号の周波数変化を線形化して第1カウント値及び第2カウント値を生成し、前記第1カウント値及び前記第2カウント値の変化に応じて前記回転体の回転方向を算出する回転情報算出部と、を含み、
前記回転情報算出部は、
前記第1カウント値の増加に応じて第1カウント増加値を生成し、前記第1カウント値の減少に応じて第1カウント減少値を生成し、
前記第2カウント値の増加に応じて第2カウント増加値を生成し、前記第2カウント値の減少に応じて第2カウント減少値を生成する、回転体感知装置。 - 前記回転情報算出部は、
前記第1カウント増加値、前記第1カウント減少値、前記第2カウント増加値、及び前記第2カウント減少値と少なくとも2つのセンシングコイルとの配置関係によって前記回転体の回転方向を算出する、請求項1に記載の回転体感知装置。 - 前記回転情報算出部は、
前記第1カウント値及び前記第2カウント値の差分値と複数の比較値とを比較して生成される出力値から、前記回転体の回転角度及び回転角速度のうち少なくとも1つを算出する、請求項1または2に記載の回転体感知装置。 - 前記複数の比較値は、前記差分値の最大値及び最小値の範囲内に位置する、請求項3に記載の回転体感知装置。
- 前記複数の比較値のうち隣接する2つの比較値の差は、前記複数の比較値のうち前記最大値と隣接する比較値と前記最大値の差、及び、前記複数の比較値のうち前記最小値と隣接する比較値と前記最小値の差の2倍である、請求項4に記載の回転体感知装置。
- 前記回転情報算出部は、
前記出力値のハイレベルとローレベルの区間間隔から前記回転体の回転角度を算出する、請求項3から5のいずれか一項に記載の回転体感知装置。 - 前記回転情報算出部は、
前記出力値の周波数から前記回転体の角速度を算出する、請求項3から6のいずれか一項に記載の回転体感知装置。 - 前記回転情報算出部は、
前記第1カウント値と前記第2カウント値の差分値の最大値及び最小値の時間から前記回転体の回転角速度を算出する、請求項1から7のいずれか一項に記載の回転体感知装置。 - 前記少なくとも2つのセンシングコイルのそれぞれのサイズ及び前記少なくとも2つのセンシングコイル間の間隔は、前記回転体の回転を感知しようとする目標感知角度の倍数によって決定される、請求項1から8のいずれか一項に記載の回転体感知装置。
- 前記複数の被検出部のそれぞれのサイズ及び前記複数の被検出部間の間隔は、前記少なくとも2つのセンシングコイルの個数、及び、前記少なくとも2つのセンシングコイルのそれぞれのサイズの積によって決定される、請求項1から9のいずれか一項に記載の回転体感知装置。
- 回転体に設けられる複数のパターンを含む第1被検出部及び前記第1被検出部の複数のパターンとは異なる位相を有する複数のパターンを含む第2被検出部と、
前記第1被検出部及び前記第2被検出部のうち互いに異なる被検出部に対向して配置される第1センシングコイル及び第2センシングコイルと、
前記第1センシングコイル及び前記第2センシングコイルのうち互いに異なるセンシングコイルと連結され、2つの発振回路を形成する2つのキャパシタを含む発振部と、
前記2つの発振回路から出力される2つの発振信号の周波数変化を線形化して第1カウント値及び第2カウント値を生成し、前記第1カウント値及び前記第2カウント値の変化に応じて前記回転体の回転方向を算出する回転情報算出部と、を含み、
前記回転情報算出部は、
前記第1カウント値の増加に応じて第1カウント増加値を生成し、前記第1カウント値の減少に応じて第1カウント減少値を生成し、
前記第2カウント値の増加に応じて第2カウント増加値を生成し、前記第2カウント値の減少に応じて第2カウント減少値を生成する、回転体感知装置。 - 前記第1被検出部の複数のパターンと前記第2被検出部の複数のパターンは、回転体の軸方向において一部の領域が重なっている、請求項11に記載の回転体感知装置。
- 前記一部の領域は、前記第1センシングコイル及び前記第2センシングコイルのサイズに対応する、請求項12に記載の回転体感知装置。
- 前記第1センシングコイル及び第2センシングコイルのサイズは、前記回転体の回転を感知しようとする目標感知角度に対応する、請求項13に記載の回転体感知装置。
- 前記第1被検出部の複数のパターンのうち1つのサイズは前記第1センシングコイルのサイズの2倍であり、前記第2被検出部の複数のパターンのうち1つのサイズは前記第2センシングコイルのサイズの2倍である、請求項13又は14に記載の回転体感知装置。
Applications Claiming Priority (6)
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KR20170126178 | 2017-09-28 | ||
KR10-2017-0126178 | 2017-09-28 | ||
KR10-2017-0154182 | 2017-11-17 | ||
KR20170154182 | 2017-11-17 | ||
KR1020180062965A KR102059818B1 (ko) | 2017-09-28 | 2018-05-31 | 회전체 감지 장치 |
KR10-2018-0062965 | 2018-05-31 |
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US11326906B2 (en) * | 2018-11-23 | 2022-05-10 | Samsung Electro-Mechanics Co., Ltd. | Apparatus for sensing rotating body |
KR102115524B1 (ko) * | 2018-11-23 | 2020-05-26 | 삼성전기주식회사 | 회전 감지 장치 |
US11385078B2 (en) * | 2018-11-23 | 2022-07-12 | Samsung Electro-Mechanics Co., Ltd. | Rotation sensing apparatus |
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JPH07128006A (ja) * | 1992-02-12 | 1995-05-19 | Kobe Steel Ltd | 磁気式ストローク検出センサ |
JP3942124B2 (ja) * | 1998-03-13 | 2007-07-11 | 東洋電機製造株式会社 | パルス計数器 |
JP4352921B2 (ja) * | 2004-02-09 | 2009-10-28 | 株式会社デンソー | 回転位置検出装置 |
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JP5446697B2 (ja) * | 2009-10-05 | 2014-03-19 | トヨタ自動車株式会社 | 回転角検出装置 |
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JP2014092418A (ja) * | 2012-11-02 | 2014-05-19 | Panasonic Corp | 位置検出センサおよび位置検出装置 |
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- 2018-05-31 KR KR1020180062965A patent/KR102059818B1/ko active IP Right Grant
- 2018-07-27 JP JP2018141722A patent/JP6590326B2/ja active Active
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JP2019066459A (ja) | 2019-04-25 |
US11274944B2 (en) | 2022-03-15 |
KR20190037073A (ko) | 2019-04-05 |
KR102059818B1 (ko) | 2019-12-27 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |