JP2019020402A - 磁気位置検知システム、磁気位置検知システムの作製方法、および回転体の位置の推定方法 - Google Patents
磁気位置検知システム、磁気位置検知システムの作製方法、および回転体の位置の推定方法 Download PDFInfo
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- JP2019020402A JP2019020402A JP2018129638A JP2018129638A JP2019020402A JP 2019020402 A JP2019020402 A JP 2019020402A JP 2018129638 A JP2018129638 A JP 2018129638A JP 2018129638 A JP2018129638 A JP 2018129638A JP 2019020402 A JP2019020402 A JP 2019020402A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- 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
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- 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
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
- H02K1/246—Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
- H02P21/18—Estimation of position or speed
-
- 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
- G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
- G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
- G01D2205/77—Specific profiles
- G01D2205/775—Tapered profiles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
(可能な実施形態の説明)
以下は、本発明の可能性のある実施形態の非限定的説明である。
Claims (20)
- 磁気位置検知システムであって、
回転体の表面に装着された少なくとも1つの環状磁石を備え、前記少なくとも1つの環状磁石は、
第1端部、
第2端部、
内径表面、及び
外径表面を備え、
前記内径表面及び前記外径表面は、それらの間に半径方向厚さを画定し、前記半径方向厚さは前記第1端部から前記第2端部まで変化する、磁気位置検知システム。 - 前記少なくとも1つの環状磁石は、前部表面及び後部表面、ならびに前記前部表面と後部表面との間の軸方向厚さをさらに備える、請求項1に記載のシステム。
- 前記少なくとも1つの環状磁石の前記軸方向厚さは、前記外径表面から前記内径表面へと、前記第1端部に隣接する領域で減少する、請求項2に記載のシステム。
- 前記少なくとも1つの環状磁石の前記軸方向厚さは、前記外径表面から前記内径表面へと、前記第2端部に隣接する領域で増加する、請求項2に記載のシステム。
- 前記少なくとも1つの環状磁石の前記軸方向厚さは、前記外径表面から前記内径表面へと、前記第1端部に隣接する領域で増加する、請求項2に記載のシステム。
- 前記少なくとも1つの環状磁石の前記軸方向厚さは、前記外径表面から前記内径表面へと、前記第2端部に隣接する領域で減少する、請求項2に記載のシステム。
- 前記少なくとも1つの環状磁石は、複数のセグメントを備え、前記セグメントのそれぞれは第1端部及び第2端部、ならびに前記第1端部と前記第2端部との間で変化する半径方向厚さを有する、請求項1に記載のシステム。
- 前記少なくとも1つの環状磁石に近接する少なくとも1つのホール効果ポジションセンサをさらに備える、請求項1に記載のシステム。
- 前記少なくとも1つの環状磁石は、希土類元素、非希土類元素、及びそれらの組み合わせからなるグループから選択される材料で形成されている、請求項1に記載のシステム。
- 前記少なくとも1つの環状磁石は、前記回転体の外径表面に取り付けられている、請求項1に記載のシステム。
- 前記少なくとも1つの環状磁石は、第1環状磁石及び第2環状磁石を備え、前記第2環状磁石は、前記回転体の端面に取り付けられている、請求項10に記載のシステム。
- 前記第1環状磁石の前記第1端部は、前記第2環状磁石の前記第1端部からオフセットしている、請求項11に記載のシステム。
- 前記少なくとも1つの環状磁石は、前記回転体の端面に取り付けられている、請求項1に記載のシステム。
- 前記少なくとも1つの環状磁石は、第1環状磁石及び第2環状磁石を備え、前記第2環状磁石は、前記回転体の前記端面に、前記第1環状磁石の内側に同心状に取り付けられている、請求項13に記載のシステム。
- 前記第1環状磁石の前記第1端部は、前記第2環状磁石の前記第1端部からオフセットしている、請求項14に記載のシステム。
- 磁気位置検知システムの作製方法であって、
回転体の表面上に少なくとも1つの環状磁石を位置決めすることであって、前記少なくとも1つの環状磁石は、
第1端部、
第2端部、
内径表面、及び
外径表面を備え、
前記内径表面及び前記外径表面はそれらの間に半径方向厚さを画定し、前記半径方向厚さは前記第1端部から前記第2端部まで変化する、少なくとも1つの環状磁石を位置決めすることを備えた、方法。 - 前記少なくとも1つの環状磁石の近部に少なくとも1つのポジションセンサを位置決めすることをさらに備える、請求項16に記載の方法。
- 前記少なくとも1つの環状磁石は、前記回転体の外径表面および端面のうち一方に取り付けられる、請求項16に記載の方法。
- 前記少なくとも1つの環状磁石は、第1環状磁石及び第2環状磁石を備え、それぞれは前記回転体の外径表面および前記端面のうち一方に取り付けられる、請求項16に記載の方法。
- 回転体の位置の推定方法であって、
回転体の表面上に少なくとも1つの環状磁石を位置決めすることであって、前記少なくとも1つの環状磁石は、
第1端部、
第2端部、
内径表面、及び
外径表面を備え、
前記内径表面及び前記外径表面は、それらの間に半径方向厚さを画定し、前記半径方向厚さは、前記第1端部から前記第2端部まで変化する、少なくとも1つの環状磁石を位置決めすることと、
前記少なくとも1つの環状磁石の近部に配置された少なくとも1つのポジションセンサを使用して、前記少なくとも1つの環状磁石の磁束密度を検知することであって、前記少なくとも1つの環状磁石の前記半径方向厚さに対応する磁束密度を検知することと、
前記検知した磁束密度に基づいて、前記回転体の位置を計算することと、
を備えた、方法。
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US15/648,717 | 2017-07-13 | ||
US15/648,717 US10389195B2 (en) | 2017-07-13 | 2017-07-13 | Annular magnets for rotor position estimation |
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JP2019020402A true JP2019020402A (ja) | 2019-02-07 |
JP7122182B2 JP7122182B2 (ja) | 2022-08-19 |
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US (1) | US10389195B2 (ja) |
EP (1) | EP3431932B1 (ja) |
JP (1) | JP7122182B2 (ja) |
CN (1) | CN109256905B (ja) |
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DE102019215134A1 (de) * | 2019-10-01 | 2021-04-01 | Robert Bosch Gmbh | Geber für Wegaufnehmer und Fertigungsverfahren für einen Geber und Wegaufnehmer mit einem Geber |
US11933640B2 (en) * | 2020-03-10 | 2024-03-19 | Mitsubishi Electric Corporation | Magnetic linear position detector |
CN111693073B (zh) * | 2020-06-28 | 2022-01-25 | 哈尔滨理工大学 | 一种双向冗余磁电编码器及其冗余检测方法 |
DE102022203623A1 (de) * | 2022-04-11 | 2023-10-12 | Zf Friedrichshafen Ag | Verfahren zum Herstellen eines magnetischen oder magnetisierbaren Bauteils, magnetisches oder magnetisierbares Bauteil, Sensorsystem, Aktorsystem und Fahrzeug |
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- 2018-06-25 EP EP18179592.3A patent/EP3431932B1/en active Active
- 2018-06-28 CA CA3010080A patent/CA3010080A1/en active Pending
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- 2018-07-12 CN CN201810763593.5A patent/CN109256905B/zh active Active
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CN109256905A (zh) | 2019-01-22 |
JP7122182B2 (ja) | 2022-08-19 |
CN109256905B (zh) | 2022-04-05 |
EP3431932B1 (en) | 2020-02-26 |
EP3431932A1 (en) | 2019-01-23 |
US20190020234A1 (en) | 2019-01-17 |
CA3010080A1 (en) | 2019-01-13 |
US10389195B2 (en) | 2019-08-20 |
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