CN109804224A - For determining the method for absolute position, motor and for the operating device of friction clutch - Google Patents
For determining the method for absolute position, motor and for the operating device of friction clutch Download PDFInfo
- Publication number
- CN109804224A CN109804224A CN201780060959.6A CN201780060959A CN109804224A CN 109804224 A CN109804224 A CN 109804224A CN 201780060959 A CN201780060959 A CN 201780060959A CN 109804224 A CN109804224 A CN 109804224A
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- Prior art keywords
- sensor
- magnet
- gmr
- signal
- gmr sensor
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Classifications
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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
- G01D5/14—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
- G01D5/24471—Error correction
- G01D5/24476—Signal processing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A method of for determining absolute position by means of the magnet sensor device with GMR sensor and sensor magnet, wherein, GMR sensor and sensor magnet can be movable with respect to each other, wherein, originally GMR sensor and sensor magnet can be movable with respect to each other in first direction of motion, and be then able to be movable with respect to each other in second direction of motion opposite with first direction of motion, so as to originally due to magnetic hysteresis and cannot corresponding position correspond to；A kind of motor, the motor has stator and rotor and the magnet sensor device with GMR sensor and sensor magnet, wherein GMR sensor is connect with stator and sensor magnet is connect with rotor, wherein, the absolute angular position of rotor can be determined by means of this method；With a kind of operating device for friction clutch, wherein the operating device has at least one this motor.
Description
Technical field
The present invention relates to one kind for by means of passing with the magnet of GMR sensor and sensor magnet (Gebermagnet)
The method that sensor arrangement determines absolute position, wherein the GMR sensor and the sensor magnet can be transported relative to each other
It is dynamic.The invention further relates to a kind of motor, the motor has stator and rotor and has GMR sensor and sensor magnet
Magnet sensor device, wherein the GMR sensor is connect with the stator, and the sensor magnet and the rotor
Connection.The invention further relates to a kind of operating devices for friction clutch.
Background technique
One kind is by means of at least one basis as known to the German patent application application No. is 10 2,016 211 802.1
The multiturn sensor (Multiturnsensors) of GMR principle work is used to seek to have magnet member around rotation axis rotation
The method of the revolving speed of the component of part, the multiturn sensor have spirally along or about the conductance of rotation axis arrangement
Body, the electric conductor have four once rotated the signal condition about the magnetic element, wherein examine to detect revolving speed
It surveys the conductor and correspondingly seeks a rotation about the resistance of windup-degree and according to the signal condition, wherein described
It cannot distinguish between on windup-degree there are two signal condition, and detect that one can distinguish respectively between undistinguishable state
Connection status, wherein by two relative to one another around rotation spin axis line with not equal to zero windup-degree reverse multiturn
Sensor, determine another multiturn sensor by detecting the signal condition that can be distinguished of a multiturn sensor be unable to area
The correspondence of the angle position of the rotating member for the signal condition divided.
One kind is by means of at least one basis as known to the German patent application application No. is 10 2,016 212 173.1
The multiturn sensor of GMR principle work is used to seek revolving speed and the angle of the component with magnetic element around rotation axis rotation
The method of position is spent, the multiturn sensor has spirally along or about the electric conductor of rotation axis arrangement, institute
The half bridge signal that there are electric conductor two once rotated about the magnetic element can distinguish is stated, detects conductor in windup-degree
On resistance for detect revolving speed and according to the half bridge signal correspondingly seek one rotation, wherein by means of according to AMR
The magnet sensor of principle work seeks angle position of the component in corresponding two semicircles, and by means of described more
Circle sensor, which is sought realizing in which semicircle, seeks angle position.
Summary of the invention
Based on the task of the present invention is improve the beginning method.In addition, based on the task of the present invention is improve to start
The motor.In addition, based on the task of the present invention is improve the beginning operating device.
The task is solved by the method for the feature with claim 1.
This method can be used in determining absolute angle.GMR sensor and sensor magnet can rotate relative to each other.GMR
Originally sensor and sensor magnet can rotate relative to each other in the first rotational direction, and be then able to revolve with first
Turn to rotate relative to each other on contrary the second direction of rotation.GMR sensor can be used in counting rotation number.GMR sensor
Also multiturn sensor can be expressed as.
This method can be used in determining absolute stroke.GMR sensor and sensor magnet can be relative to each other along stroke shafts
Line movement.Originally GMR sensor and sensor magnet can be movable with respect to each other in first direction of motion along stroke axis, and
And it is then able to rotate relative to each other in second direction of motion opposite with first direction of motion along stroke axis.The trip
Axis can be linear.
GMR sensor is the sensor based on giant magnetoresistance effect (Giant-Magneto-Resistance-Effekt).
GMR sensor can have conveyor screw.The conveyor screw can have spiral arm.The conveyor screw is arranged to diamond shape.GMR sensing
Device can have GMR layer stacking.GMR sensor can have reference layer and sensor layer.The magnetized state of sensor layer is energy
Enough change.GMR sensor can have domain wall generatorDomain wall generator can
It is arranged on the end of conveyor screw.180 ° of magnetic domains can be generated in domain wall generator.The magnetic domain can be injected into conveyor screw
And/or it can eliminate again.The magnetized state of spiral arm can change under the influence of the magnetic field of movement.By making magnetic field and spiral
Body is movable with respect to each other, and can change the magnetized state of spiral arm.Revolution can magnetically be stored.In the supply of no power supply
In the case of be also able to detect movement.Movement can be also stored in the case where the supply of no power supply.The resistance value of conveyor screw can
It is related to magnetized state.
When sensor magnet and GMR sensor rotate relative to each other, the magnetic field of rotation can be applied to GMR sensor.
GMR sensor can have four signal conditions about a rotation.GMR sensor has magnetic hysteresis.Due to magnetic hysteresis, it is unable to section
Distinguish the signal condition of GMR sensor likes.
GMR sensor and sensor magnet can be movable with respect to each other one path/angle, and the path/angle is considering
It is predefined in the case where the Motion Resolution rate of the GMR sensor, especially angular resolution.GMR sensor can have
90 ° of angular resolution.GMR sensor and sensor magnet from originally cannot corresponding angle position rotate relative to each other
It is 45 ° about +/-.
GMR sensor can be connected in half-bridge circuit.Three signal levels that can be distinguished can be exported respectively.Correspondingly
High level, middle level and low level can be exported.The signal condition of GMR sensor can pass through the signal condition of different half-bridges
Combination distinguish.
In addition, task of the invention is solved by means of the motor of the feature with claim 5.
The motor can be controlled by means of controller for electric consumption.The controller for electric consumption can be controller.Electric control dress
Setting can be local controller.The controller for electric consumption can have computing device.The controller for electric consumption can have storage device.
The controller for electric consumption can have the input of at least one electric signal.The controller for electric consumption can have at least one electric signal defeated
Out.The controller for electric consumption can be other at least one in structure and/or in function controller for electric consumption with conducted signal
Mode connects.Bus system (such as CAN bus) can be used in the connection of conducted signal.
The motor can have shell.Stator can shell be fixedly arranged.Rotor can be in the housing can rotate
Mode supported.Sensor magnet is capable of fixing in rotor-side.GMR sensor is capable of fixing in stator side.Sensor magnet and GMR
Sensor can clearance survey gap, for contactlessly turns counting and determine absolute angle.
The motor can be used as executing driving device (Stellantrieb).The motor can be used in motor vehicle
Using.The motor can be used in operating automatic shifting transmission, electronic throttle, valve adjuster, window regulator, seat adjusting
Device, sliding roof adjuster, lens actuator and/or throttle adjustment device.
In addition, being solved based on task of the invention by means of the operating device of the feature with claim 6.
The operating device can be fluid power operating device.The operating device can have at least one active cylinder, at least one
A slave cylinder and at least one hydraulic path constituted between at least one described active cylinder and at least one described slave cylinder.
At least one described motor can be used in loading at least one described active cylinder.At least one described slave cylinder can correspond to
In friction clutch.
The friction clutch can be single entry clutch or double clutch.The friction clutch can be used to be arranged in motor-driven
In the driving system of vehicle.The driving system can include driving machine.The driving machine can be internal combustion engine.The driving system can have friction
Clutch.The driving system can have speed changer.The speed changer can be gear shift transmission.The driving system can have at least one
A wheel that can be driven.The friction clutch can be used in being arranged between driving machine and speed changer.
All in all and in other words, therefore through the invention especially make by means of GMR multiturn sensor in no angle
It seeks rotating in the case where information.There are three state (high, medium and low) for output (half bridge signal) tool of reluctance type multiturn sensor.
According to the position of magnet, visible four possible " combination " in a rotation, but due to the intrinsic magnetic hysteresis of sensor, the state
It can be indefinite.If system allows, rotates magnet slightly, for example rotates +/- 45 °, or make that there is magnet
Piston slightly moves, to be out hysteresis area, and it follows that accurately rotation (such as 1/4 turn).
By means of the present invention, the determination of absolute angle additionally can be realized in addition to turns counting.It can save additional
Angular transducer.Reduce installation consumption.Improve measurement accuracy.
Detailed description of the invention
Below with reference to the accompanying drawings the embodiment that the present invention will be described in detail.Other feature and advantage are obtained by the explanation.These realities
Universals of the invention can be presented in the specific features for applying example.The feature associated with other features of these embodiments also can
Individual feature of the invention is enough presented.
It schematically and is exemplarily illustrated:
The chart of signal curve of GMR sensor of the Fig. 1 on half-bridge during the magnetic field of rotation,
The partial enlarged view of signal curve of GMR sensor of the Fig. 2 on half-bridge during the magnetic field of rotation, and
Signal curve of GMR sensor of the Fig. 3 on half-bridge in the magnetic field being rotated both clockwise and counterclockwise and corresponding
The chart of signal mode with magnetic hysteresis.
Specific embodiment
Fig. 1 shows the chart 100 with signal curve, such as the GMR sensor on half-bridge is in the magnetic field phase of rotation
Between signal curve 102,104.In the chart, in x1Axis, x2Axis and x3It is angle on axis, is voltage on the y axis.Signal
102, it 104 is able to that three different signal levels are presented: high, medium and low.It is flowed through corresponding to during the rotation of one of 360 °
The signal level combination 106,108,110,112 that four of signal 102,104 can distinguish in principle.Signal level combination 106
It is high for 102 height of signal/signal 104.Signal level combination 108 in signal 102/signal 104 is high.Signal level combines 110
Signal 102 is low/and signal 104 is high.Signal level combination 112 in signal 102/signal 104 in.
Fig. 2 shows partial enlargement Figure 200 of signal curve 202,204, such as the GMR sensor on half-bridge in rotation
The signal curve 102,104 according to Fig. 1 during magnetic field.It is illustrated in detail, due to magnetic hysteresis, in signal 202/signal 204
In signal level combination 212 start when also briefly exist in signal 202/signal 204 it is high signal level combination 208.Cause
And originally rotation position cannot correspond to.In order to keep rotation position still corresponding, make about 45 ° of magnetic field rotating, until leaving magnetic hysteresis area
Domain 214 and rotation position can be corresponded to.
Fig. 3 shows chart 300, has the GMR sensor on half-bridge in the magnetic field being rotated both clockwise and counterclockwise
In signal curve 302 and the corresponding signal mode with magnetic hysteresis.
In the chart, in x1Axis, x2Axis and x3Be on axis about 1.5 rotations, corresponding to 540 ° of rotation angles,
It is voltage on the y axis.In x1Show the signal curve 302 of sinusoidal form on axis, the signal curve by GMR sensor signal
Mode obtains.In x2It is the signal mode of the first half-bridge on axis.The signal level of first half-bridge can have low level 304, in
Level 306 and high level 308.In x3It is the signal mode of the second half-bridge on axis.The signal level of second half-bridge can have low
Level 310, middle level 312 and high level 314.
GMR sensor is generated in the magnetic field rotated clockwise has the first signal level (such as the first signal level
316) signal mode.GMR sensor is generated in the magnetic field rotated counterclockwise has second signal level (such as second signal
Level 318) signal mode.Hysteresis area (such as hysteresis area 320) is generated when changing rotation direction.
Reference signs list
100 charts
102 signals, signal curve
104 signals, signal curve
The combination of 106 signal levels
The combination of 108 signal levels
The combination of 110 signal levels
The combination of 112 signal levels
200 partial enlarged views
202 signals, signal curve
204 signals, signal curve
The combination of 208 signal levels
The combination of 212 signal levels
214 hysteresis ranges
300 charts
302 signal curves
304 low levels
Level in 306
308 high level
310 low levels
Level in 312
314 high level
316 first signal levels
318 second signal level
320 hysteresis areas.
Claims (6)
1. a kind of for being determined the side of absolute position by means of the magnet sensor device with GMR sensor and sensor magnet
Method, wherein the GMR sensor and the sensor magnet can be movable with respect to each other, which is characterized in that the GMR sensing
Originally device and the sensor magnet can be movable with respect to each other in first direction of motion, and be then able to described
It is movable with respect to each other in the second opposite direction of motion of one direction of motion, so as to originally cannot corresponding position due to magnetic hysteresis
It sets and is corresponded to.
2. the method according to claim 1, wherein the GMR sensor and the sensor magnet can be opposite
In moving one stroke/angle each other, the stroke/angle is in the case where considering the Motion Resolution rate of the GMR sensor
It predefines.
3. the method according at least one of preceding claims, which is characterized in that the GMR sensor is with 90 °
Angular resolution, and the GMR sensor and the sensor magnet from originally cannot corresponding angle position relative to
It is mutually rotating 45 ° about +/-.
4. the method according at least one of preceding claims, which is characterized in that the GMR sensor is connected to half-bridge
Three signal levels that can be distinguished (304,306,308,310,312,314) can be exported in circuit and respectively.
5. a kind of motor, the motor has stator and rotor and magnet sensor device, the magnet sensor dress
Set with GMR sensor and sensor magnet, wherein the GMR sensor is connect with the stator, and the sensor magnet with
The rotor connection, which is characterized in that by means of can determine institute to method described at least one of 4 according to claim 1
State the absolute angular position of rotor.
6. a kind of operating device for friction clutch, which is characterized in that the operating device has at least one according to power
Benefit require 5 described in motor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016219211.6 | 2016-10-04 | ||
| DE102016219211.6A DE102016219211A1 (en) | 2016-10-04 | 2016-10-04 | Method for absolute position determination, electric motor and actuating device for a friction clutch |
| PCT/DE2017/100772 WO2018065002A1 (en) | 2016-10-04 | 2017-09-13 | Method for absolute position determining, electric motor and actuation device for a friction clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109804224A true CN109804224A (en) | 2019-05-24 |
| CN109804224B CN109804224B (en) | 2022-01-25 |
Family
ID=60009388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780060959.6A Active CN109804224B (en) | 2016-10-04 | 2017-09-13 | Method for determining an absolute position, electric motor and operating device for a friction clutch |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3523608A1 (en) |
| JP (1) | JP6828148B2 (en) |
| CN (1) | CN109804224B (en) |
| DE (2) | DE102016219211A1 (en) |
| WO (1) | WO2018065002A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7063307B2 (en) * | 2019-06-05 | 2022-05-09 | Tdk株式会社 | Magnetic sensor and magnetic sensor system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003083767A (en) * | 2001-09-14 | 2003-03-19 | Sony Precision Technology Inc | Absolute encoder |
| CN1754080A (en) * | 2003-02-24 | 2006-03-29 | Hl-平面技术有限公司 | Magnetoresistive sensor for determining an angle or a position |
| CN101587174A (en) * | 2008-05-14 | 2009-11-25 | 新科实业有限公司 | Magnetic sensor |
| JP2012042353A (en) * | 2010-08-19 | 2012-03-01 | Tdk Corp | Rotation angle and torque sensor |
| CN103069709A (en) * | 2010-08-05 | 2013-04-24 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method and circuit arrangement for checking the rotor position of a synchronous machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185095A (en) * | 1985-02-09 | 1986-08-18 | Tokico Ltd | Controlling method for step motor |
| JP2002067987A (en) * | 2000-08-24 | 2002-03-08 | Aisin Seiki Co Ltd | Vehicular steering gear |
| DE102008037975A1 (en) * | 2007-08-27 | 2009-03-05 | Institut Für Photonische Technologien E.V. | Magnetic revolution counter |
| JP2012122447A (en) * | 2010-12-10 | 2012-06-28 | Toyota Motor Corp | Start control device |
| DE102015201850A1 (en) * | 2015-02-03 | 2016-08-04 | Zf Friedrichshafen Ag | Method for incremental path or angle detection and actuator device comprising an electric motor |
| JP2016151436A (en) * | 2015-02-16 | 2016-08-22 | 株式会社デンソー | Rotation angle detection device |
| DE102016211802A1 (en) | 2016-06-30 | 2018-01-04 | Schaeffler Technologies AG & Co. KG | Method and device for determining a number of revolutions |
| DE102016212173A1 (en) | 2016-07-05 | 2018-01-11 | Schaeffler Technologies AG & Co. KG | Method and device for determining a number of revolutions and an angular position of a component rotatable about an axis of rotation |
-
2016
- 2016-10-04 DE DE102016219211.6A patent/DE102016219211A1/en not_active Withdrawn
-
2017
- 2017-09-13 WO PCT/DE2017/100772 patent/WO2018065002A1/en unknown
- 2017-09-13 EP EP17778168.9A patent/EP3523608A1/en not_active Withdrawn
- 2017-09-13 DE DE112017005027.8T patent/DE112017005027A5/en active Pending
- 2017-09-13 JP JP2019518099A patent/JP6828148B2/en active Active
- 2017-09-13 CN CN201780060959.6A patent/CN109804224B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003083767A (en) * | 2001-09-14 | 2003-03-19 | Sony Precision Technology Inc | Absolute encoder |
| CN1754080A (en) * | 2003-02-24 | 2006-03-29 | Hl-平面技术有限公司 | Magnetoresistive sensor for determining an angle or a position |
| CN101587174A (en) * | 2008-05-14 | 2009-11-25 | 新科实业有限公司 | Magnetic sensor |
| CN103069709A (en) * | 2010-08-05 | 2013-04-24 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method and circuit arrangement for checking the rotor position of a synchronous machine |
| JP2012042353A (en) * | 2010-08-19 | 2012-03-01 | Tdk Corp | Rotation angle and torque sensor |
Non-Patent Citations (1)
| Title |
|---|
| MARCO DIEGEL等: "A New Four Bit Magnetic Domain Wall Based Multiturn Counter", 《IEEE TRANSACTIONS ON MAGNETICS》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019536991A (en) | 2019-12-19 |
| JP6828148B2 (en) | 2021-02-10 |
| DE102016219211A1 (en) | 2018-04-05 |
| WO2018065002A1 (en) | 2018-04-12 |
| EP3523608A1 (en) | 2019-08-14 |
| CN109804224B (en) | 2022-01-25 |
| DE112017005027A5 (en) | 2019-08-01 |
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