WO2005124286A1 - Verfahren und anordnung zur korrektur eines winkel- und/oder abstandsmessenden sensorsystems - Google Patents
Verfahren und anordnung zur korrektur eines winkel- und/oder abstandsmessenden sensorsystems Download PDFInfo
- Publication number
- WO2005124286A1 WO2005124286A1 PCT/EP2005/051888 EP2005051888W WO2005124286A1 WO 2005124286 A1 WO2005124286 A1 WO 2005124286A1 EP 2005051888 W EP2005051888 W EP 2005051888W WO 2005124286 A1 WO2005124286 A1 WO 2005124286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- angle
- parameters
- determined
- sensor arrangement
- correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- G01D5/24471—Error correction
- G01D5/2448—Correction of gain, threshold, offset or phase control
-
- 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
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
- G01D18/001—Calibrating 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
- G01D5/244—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
- G01D5/24471—Error correction
- G01D5/2449—Error correction using hard-stored calibration data
Definitions
- the invention relates to a method and an arrangement for correcting an angle and / or distance measuring sensor system according to the preamble of the main claim.
- Sensor systems are known per se for an angle to be measured in the case of a rotating measurement object or a distance to be measured in the case of a linearly moving measurement object, in which the information to be obtained is represented by a pair of sinusoidal and cosine-shaped measurement signals.
- the information is usually in the amplitude and / or in the phase of these measurement signals.
- angle or phase errors often occur in the measurement signals, which are caused by manufacturing tolerances or other circuit-specific features in the sensor arrangement.
- GMR giant magneto sistance
- the values x 0 and y 0 represent the offsets of the angle sensor.
- the signal amplitudes Ai and A 2 are generally of different sizes and the phase shift between the sizes x and y is not exactly 90 °, it has a phase error ⁇ after the offset deduction and normalization to the same amplitude.
- DE 100 34 733 AI discloses a method in which the amplitudes Ai and A 2 or the values x 0 and y 0 and the phase error ⁇ are calculated from the measurement data. be net.
- the calculation is very complex and therefore very time-critical when used as an adjustment method. Since the underlying equations are non-linear in the parameters sought, a non-linear regression must be carried out, using iteration or approximation methods which make the required computing times incalculable.
- the convergence properties of the known methods depend heavily on the choice of a suitable initial solution, so that if the choice is unsuitable, such methods can be disadvantageous.
- the aforementioned generic method for correcting an angle and / or distance-measuring sensor system in which sinusoidal and cosine-shaped measurement signals are evaluated, which have been obtained by scanning a moving measurement object and thereby correcting angle or phase errors of the measurement signals, is advantageous further developed in that the method consists of an adjustment and a subsequent correction method, whereby in the adjustment method a predetermined number of measured value pairs by rotating the magnetic field according to the method of least squares and by solving a linear system of equations, offset values of the sinusoidal and cosine-shaped measurement signals and correction parameters to be provided. Then a corrected pair of measured values is determined from each pair of measured values in the correction method and the angle to be measured is advantageously determined using a suitable neten algorithm determined from the corrected measured value pairs.
- the measured value pairs determined in the adjustment method according to the invention lie on ellipses, the ellipse parameters being determined using the method of the least squares of errors.
- the respective square of errors is derived according to the ellipse parameters and the respective derivative is set to zero as a necessary condition for a minimum.
- the linear system of equations can now be set up from the respective derivations, so that the system of equations is solved according to the ellipse parameters sought with a suitable elimination and the offset values and the correction parameters are determined from this.
- the sensor arrangement is constructed on an integrated microchip together with an evaluation circuit for correcting the measured values.
- the microchip with the sensor arrangement and the evaluation circuit preferably has interfaces for input and / or output of data and / or parameters.
- the microchip with the sensor arrangement and the evaluation circuit is used as a steering angle sensor in a motor vehicle as an advantageous application example.
- the invention it is thus possible in a simple manner to analyze the sensor errors of an individual sensor element in a first part of the method and to determine the associated parameters. In a second part of the method, the sensor errors can then be corrected or compensated for using the evaluation circuit.
- the advantage of the proposed solution is, in particular, that no iterations or approximations, as in the prior art, are necessary to determine the necessary sensor parameters.
- the result of the evaluation is therefore always available after the same computing time. This is particularly important when comparing the sensor evaluation circuit during manufacture, since a fixed manufacturing cycle must be used here.
- Figure 1 is a block diagram of such an arrangement for performing an adjustment method in an angle and / or distance measuring sensor arrangement
- Figure 2 is a block diagram for performing the correction process and determining the output signal of the angle and / or distance measuring sensor arrangement. Description of the embodiment
- a sensor 1 shows a block diagram of an arrangement with which the sine and cosine signals x, y supplied by a sensor 1, for example with an AMR or GMR sensor mentioned in the introduction to the description, are processed further ,
- the sensor 1 detects the change in the magnetic field of a magnet 2 caused by an angular rotation ⁇ .
- the parameter calculation explained below is then carried out in a module 5, so that the parameters x 0 , yo, mi, m 2 can be further processed at an output 6 here for further evaluation in an evaluation circuit described with reference to FIG.
- the parameters w ⁇ ... w 5 represent the parameters of the ellipse.
- a so-called least squares approach is used to determine the squared error g made:
- the square of error g is to be minimized with regard to the ellipse parameters W 1 ... W 5 sought.
- Wi. .W 5 for example using the Gaussian elimination method or another suitable known method.
- Such an equation can look as follows: sx4 2- sx3y sx2y2 2-, sx3 2 - sx2y sx3y 2 ⁇ sx2y2 sxy3 2 ⁇ sx2y 2 ⁇ sxy2 sx2y2 2 ⁇ sxy3 sy4 2 ⁇ sxy2 2 • sy3 sx3 2 ⁇ sxly sx22 2 ⁇ sxy sx2y 2 • sxy3 sy3 2 • sxy 2 • sy2
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/587,536 US7620514B2 (en) | 2004-06-19 | 2005-04-27 | Method and arrangement for correcting an angle-measuring and/or distance-measuring sensor system |
| AU2005255137A AU2005255137B2 (en) | 2004-06-19 | 2005-04-27 | Method and arrangement for correcting an angle-measuring and/or distance-measuring sensor system |
| EP05747518A EP1761744A1 (de) | 2004-06-19 | 2005-04-27 | Verfahren und anordnung zur korrektur eines winkel- und/oder abstandsmessenden sensorsystems |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004029815.7 | 2004-06-19 | ||
| DE102004029815A DE102004029815A1 (de) | 2004-06-19 | 2004-06-19 | Verfahren und Anordnung zur Korrektur eines winkel- und/oder abstandsmessenden Sensorsystems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005124286A1 true WO2005124286A1 (de) | 2005-12-29 |
Family
ID=35207821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/051888 Ceased WO2005124286A1 (de) | 2004-06-19 | 2005-04-27 | Verfahren und anordnung zur korrektur eines winkel- und/oder abstandsmessenden sensorsystems |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7620514B2 (de) |
| EP (1) | EP1761744A1 (de) |
| AU (1) | AU2005255137B2 (de) |
| DE (1) | DE102004029815A1 (de) |
| WO (1) | WO2005124286A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH700638A1 (de) * | 2009-03-19 | 2010-09-30 | Scuola Universitaria Professio | Dreiphasiger Phasenregelkreis und Verfahren zum Schätzen einer Phase. |
| CN102072698A (zh) * | 2009-11-17 | 2011-05-25 | 株式会社日立制作所 | 旋转角测量装置 |
| EP3296700A1 (de) | 2016-09-16 | 2018-03-21 | NM Numercial Modelling GmbH | Verfahren zur bestimmung der position eines positionsgebers eines positionsmesssystems |
| CN113739748A (zh) * | 2021-08-13 | 2021-12-03 | 连云港杰瑞电子有限公司 | 一种感应式角度传感器参数采集方法 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005091137A (ja) * | 2003-09-17 | 2005-04-07 | Nsk Ltd | 舵角センサ |
| DE102005024879B4 (de) | 2005-05-31 | 2018-12-06 | Infineon Technologies Ag | Verfahren zum Bestimmen von Restfehler-Kompensationsparametern für einen magnetoresistiven Winkelsensor und Verfahren zum Verringern eines Restwinkelfehlers bei einem magnetoresistiven Winkelsensor |
| DE102005028043A1 (de) * | 2005-06-17 | 2006-12-28 | Jungheinrich Ag | Drehwinkelsensor, insbesondere für eine elektrische Lenkung eines Flurförderzeugs |
| AU2007212485B2 (en) * | 2006-02-03 | 2012-05-24 | Moog Inc. | Encoder signal analysis system for high-resolution position measurement |
| US8024956B2 (en) * | 2008-09-02 | 2011-09-27 | Infineon Technologies Ag | Angle measurement system |
| DE102014114135B4 (de) * | 2014-09-29 | 2023-11-02 | Tdk-Micronas Gmbh | Verfahren und Vorrichtung zur Kalibrierung eines Winkel-Messsystems |
| CN105158720B (zh) * | 2015-10-22 | 2018-05-04 | 上海市计量测试技术研究院 | 一种校准90度相位角相对误差的方法 |
| CN113544528B (zh) * | 2019-03-13 | 2024-11-05 | 日本电产理德股份有限公司 | 检测值修正系统、系数计算方法以及检测值修正方法 |
| DE102019121392A1 (de) * | 2019-08-08 | 2021-02-11 | Infineon Technologies Ag | Vorrichtung und verfahren zum kalibrieren eines winkelsensors |
| DE102024205493A1 (de) * | 2024-06-14 | 2025-12-18 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Korrektur von Messsignalen |
| DE102024210395B3 (de) * | 2024-10-29 | 2025-12-31 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Korrektur von Messsignalen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5612906A (en) * | 1993-09-14 | 1997-03-18 | Baumuller Nurnberg Gmbh | System for the measurement of the absolute position of the movable cyclic division mark carrier of an incremental position indicator |
| DE19911822C1 (de) * | 1999-03-17 | 2000-08-24 | Brown & Sharpe Gmbh | Verfahren zur Korrektur von Interpolationsfehlern beim Ablesen von Inkrementalmaßstäben durch einen Positionsgeber |
| DE10034733A1 (de) * | 1999-08-02 | 2001-02-15 | Siemens Ag | Ermittlungsverfahren für ein Lagesignal und/oder für Korrekturwerte für Messsignale |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920007039B1 (ko) * | 1985-02-02 | 1992-08-24 | 가부시기가이샤 히다찌세이사꾸쇼 | 전동 파워스티어링장치 |
| US6401052B1 (en) * | 1999-08-02 | 2002-06-04 | Siemens Aktiengesellschaft | Determination method for a position signal and/or for correction values for measurement signals |
| DE10154153A1 (de) | 2001-11-03 | 2003-05-15 | Bosch Gmbh Robert | Achsenschnittverfahren und N-Punkte-Methode zum Offsetabgleich von Winkelsensoren |
-
2004
- 2004-06-19 DE DE102004029815A patent/DE102004029815A1/de not_active Withdrawn
-
2005
- 2005-04-27 EP EP05747518A patent/EP1761744A1/de not_active Withdrawn
- 2005-04-27 WO PCT/EP2005/051888 patent/WO2005124286A1/de not_active Ceased
- 2005-04-27 US US10/587,536 patent/US7620514B2/en not_active Expired - Fee Related
- 2005-04-27 AU AU2005255137A patent/AU2005255137B2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5612906A (en) * | 1993-09-14 | 1997-03-18 | Baumuller Nurnberg Gmbh | System for the measurement of the absolute position of the movable cyclic division mark carrier of an incremental position indicator |
| DE19911822C1 (de) * | 1999-03-17 | 2000-08-24 | Brown & Sharpe Gmbh | Verfahren zur Korrektur von Interpolationsfehlern beim Ablesen von Inkrementalmaßstäben durch einen Positionsgeber |
| DE10034733A1 (de) * | 1999-08-02 | 2001-02-15 | Siemens Ag | Ermittlungsverfahren für ein Lagesignal und/oder für Korrekturwerte für Messsignale |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH700638A1 (de) * | 2009-03-19 | 2010-09-30 | Scuola Universitaria Professio | Dreiphasiger Phasenregelkreis und Verfahren zum Schätzen einer Phase. |
| CN102072698A (zh) * | 2009-11-17 | 2011-05-25 | 株式会社日立制作所 | 旋转角测量装置 |
| EP3296700A1 (de) | 2016-09-16 | 2018-03-21 | NM Numercial Modelling GmbH | Verfahren zur bestimmung der position eines positionsgebers eines positionsmesssystems |
| US10557722B2 (en) | 2016-09-16 | 2020-02-11 | NM Numerical Modelling GmbH | System for determining the position of the position indicator of a position measuring system |
| US10663319B2 (en) | 2016-09-16 | 2020-05-26 | NM Numerial Modelling GmbH | Sensor device for determining the position of the rotor of an electrical machine and control device for an electric motor |
| CN113739748A (zh) * | 2021-08-13 | 2021-12-03 | 连云港杰瑞电子有限公司 | 一种感应式角度传感器参数采集方法 |
| CN113739748B (zh) * | 2021-08-13 | 2024-04-02 | 连云港杰瑞电子有限公司 | 一种感应式角度传感器参数采集方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004029815A1 (de) | 2006-01-05 |
| AU2005255137A1 (en) | 2005-12-29 |
| US20070174015A1 (en) | 2007-07-26 |
| US7620514B2 (en) | 2009-11-17 |
| EP1761744A1 (de) | 2007-03-14 |
| AU2005255137B2 (en) | 2010-06-17 |
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