EP3765859A1 - Drehwinkelerfassungseinrichtung für eine komponente einer bremse eines fahrzeugs und verfahren zum bestimmen einer drehwinkelposition der komponente - Google Patents
Drehwinkelerfassungseinrichtung für eine komponente einer bremse eines fahrzeugs und verfahren zum bestimmen einer drehwinkelposition der komponenteInfo
- Publication number
- EP3765859A1 EP3765859A1 EP19708242.3A EP19708242A EP3765859A1 EP 3765859 A1 EP3765859 A1 EP 3765859A1 EP 19708242 A EP19708242 A EP 19708242A EP 3765859 A1 EP3765859 A1 EP 3765859A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- component
- rotation angle
- brake disc
- recesses
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
-
- 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
- G01D5/2454—Encoders incorporating incremental and absolute signals
-
- 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
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/483—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable capacitance detectors
-
- 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
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
-
- 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
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/003—Position, angle or speed
Definitions
- the invention relates to a rotation angle detection device for a component of a brake of a vehicle, in particular a rotation angle detecting device, which detects a rotational speed of a rotatable component of a brake
- Rail vehicle allows, and methods for determining a rotational angular position and a rotational speed of the rotatable component.
- the speed of a rail vehicle is usually by a
- each speed detection device must be provided individually with a separate impulse wheel. Furthermore, there is a risk that the speed detecting device is easily damaged due to its position at the end of the axle.
- the rotation angle detection device with the features according to claim 1 makes it possible to use pulses of a switching section, which is integrated in an existing rotatable component of a brake for a rotation angle detection of the rotatable component, and thus the wheels.
- a sensor is arranged so that it is actuated by a temporary presence of the switching section in the range of a switching distance of the sensor when rotating the rotatable component, and thus detects the presence.
- the brakeable component is a
- Brake disc This design provides advantages over, for example, block brakes of rail vehicles advantages in terms of lower wear of
- the brake disc advantageously in at least one of its side surfaces recesses, so for example cooling air holes, has the circumferentially adjacent to the recesses brake disc material act as a switching section for the sensor, so that no additional switching elements are required.
- the sensor detects in a rotating brake disc a state in which due to one of the recesses no brake disc material in the region of
- Brake disc material is located in the detection range of the sensor, so the
- the brake disc is alternatively or additionally provided in its peripheral surface with recesses, preferably for cooling the brake disc, this can be circumferential to the recesses
- adjacent brake disc material act as the switching portion for the sensor.
- the brake disk is advantageously provided in its peripheral surface with at least one recess, for example for weight reduction or for balancing, the brake disk material provided in the recesses may act as the switching section for the sensor.
- both the brake disk material present in the recess and a brake disk material circumferentially adjacent to the recesses may act as the switching portion for the sensor.
- Diameter of the brake disc from different depths it is possible that an angular position of the brake disc is detected on the different depths. For example, if one of the recesses has a different depth from other recesses, this makes it possible to associate the position of this one recess with an angular position of the brake disc. Further preferably, a plurality of depressions may have different depths, so that the angular position can be determined by assigning a pattern of a sequence of different depths which can be recognized by the sensor.
- the brake disk material between the recesses or recesses is formed by webs which are integrally connected between two disks, each of which forms one of the side surface of the brake disk.
- the webs may be either pin-like arranged as a dome between the discs or be rib-shaped, so that the weight of the brake disc, and thus a moving mass, can be saved.
- the rib-shaped webs may be arranged radially or be curved so that thereby cooling air is transported between the discs.
- the brake disk material between the recesses or the recesses may then be used without the provision of additional switching elements to actuate the sensor, and thus perform the rotational angle detection for the brake disk.
- the sensor is an inductive proximity sensor. Since the brake disc is usually off
- the switching sections can thus be reliably detected.
- the senor is advantageously an optical sensor
- ferromagnetic properties of the material for a detection of the switching sections is not important, so that the material selection is variable.
- the senor as a capacitive sensor, on the one hand there is a more variable choice of material, on the other hand, the sensor is not sensitive to contamination or the contaminants can be compensated easier.
- the senor is an analog sensor. This brings in the detection of the switching sections at low speed advantages and
- the sensor attachment device is a brake caliper.
- an already existing to the axis non-rotatable component of the brake can be used simply and inexpensively as a sensor mounting device without an additional component is needed.
- a rotational angle position of the brakable component can be detected easily without additional components.
- the signals are analyzed by the evaluation unit and from when turning the braked
- Component of signals detected by the sensor is either at different depths of wells or different distances of the wells or
- Recesses in the circumferential direction a time-dependent pattern of the detected signals whose amplitude or time interval may be different, created. From the signals, a corresponding cyclic pattern is then created. Alternatively, only one depression may be one of the further depressions
- the cyclic pattern is then assigned the rotational angle position of the brakable component.
- a rotational speed of the brakable component can be detected easily without additional components.
- the signals detected by the sensor during rotation of the brakeable component are transmitted either over different depths of recesses or different distances
- Recesses or recesses in the circumferential direction a time-dependent pattern of the detected signals whose amplitude or time interval may be different, created. This pattern repeats every complete revolution of the rotatable component and is thus cyclical. This cyclic pattern can then be assigned a rotational frequency from which the speed of the brake disc can be calculated.
- FIG. 1a and 1b a schematic representation of a rotation angle detection device with a brake disc with recesses in their side surfaces
- FIGS. 2a and 2b show a schematic representation of the rotation angle detection device with a brake disc with recesses and recesses in its peripheral surface.
- 3a to 3e each show an enlargement of a portion of the outer periphery of
- 4a and 4b is a schematic representation of a brake disc, in which the
- Fig. 1a and Fig. 1b show a schematic representation of a
- the brake disk 2 is a brakeable component of a brake of a vehicle.
- the brake disc 2 is connected to wheels of the vehicle and rotatable about the axis 4.
- the vehicle may be a rail vehicle.
- the brakable component may also be a brake drum of the vehicle or a braked wheel of the rail vehicle.
- the brake disc 2 is provided with recesses 3 in their side surfaces. These recesses 3 can be used in addition to ventilation, so for cooling, the brake disc 2.
- the recesses 3 are radially at the same distance from the axis. 4
- the brake disc 2 has between the recesses 3 in a circumferential angle portion of the brake disc 2 each have a to the recesses 3 radially adjacent brake disc material 5.
- the recesses 3 pass completely through the brake disk 2. Alternatively, they can also form only recesses of the brake disc 2, which does not pass completely through the brake disc.
- the rotation angle detection device 1 has a sensor 6.
- the sensor 6 is arranged so that it can detect switching portions of the rotation angle detecting device 1. When detecting one of the switching sections, the sensor 6 inputs
- the switching portions are as shown in FIG.
- Brake disc 2 respectively the brake disc material 5, which is radially adjacent to the recesses 3, so circumferentially therebetween, whereby the
- Switching sections are integrated in the brake disc 2.
- the recesses 3 are not detected by the sensor 6 as switching sections.
- Brake disc material which is optionally located in the axial extension of one of the recesses 3 in a further portion of the brake disc 2, is also not detected by the sensor 6.
- a recess 3 may be defined as the switching section.
- the rotation angle detection device 1 is provided with a sensor mounting device 7, by means of which the sensor 6 is fixed so that it is non-rotatable relative to the axis 4.
- the rotation angle detection device 1 further has an evaluation unit 8, which processes and evaluates the signal output by the sensor 6.
- Fig. 2a and Fig. 2b each show a schematic representation of a
- Fig. 2a shows a view in the direction of the axis 4 and Fig.
- the brake disk 2 is here also the brake component of the brake
- the brake disc 2 is connected to wheels of the vehicle and rotatable about the axis 4.
- the brake disk 2 here has the recesses 3 and additional recesses 9 in its peripheral surface.
- the brake disk 2 may also have recesses 3 and recesses 9 both in the side surfaces and in the peripheral surface.
- the recesses 3 are defined so that they are recesses in
- Brake disc material so are areas in which no brake disc material that is detectable by the sensor 6, is present.
- the recesses 3 are either through the brake disc 2 continuously or have from the brake disc surface from a depth, so that brake disc material in the bottom of the recess is not detected by the sensor 6.
- the recesses 9 are defined so that the brake disk material in the bottom of the recess of the sensor 6 can be detected, and thus the brake disk material in the bottom of the recesses 9 thus also form the switching sections.
- the recesses 9 are recessed relative to the outer diameter of the brake disc 2 with different predetermined depths. Thus, the recesses 9 differ from the recesses 3, in which no brake disk material in the recesses 3 of the sensor 6 can be detected.
- the sensor 6 and the evaluation unit 8 are designed so that different predetermined depths of the recesses 9 are detected or processed.
- the sensor 6 is designed as an inductive sensor and operates on an analogous principle.
- optical or capacitive sensors which likewise operate on an analogous principle.
- digital sensors can also be used.
- the rotation angle detection device 1 is shown in Fig. 2a and Fig. 2b with a
- Sensor attachment device 7 is provided, which is designed as a brake caliper with brake pads 11, and with the aid of which the sensor 6 is also fixed here so that it is non-rotatable relative to the axis 4.
- the rotation angle detection device 1 also has here an evaluation unit 8, which processes and evaluates the signal output by the sensor 6.
- FIGS. 3 a to 3 e different arrangements of the recesses 3 arranged in the peripheral surface of the brake disk 2 and different arrangements and properties of the disks arranged in the peripheral surface of the brake disk 2 are shown
- the brake disk 2 in Fig. 3a has only one recess 3, which extends from the peripheral surface on the outer diameter of the brake disk 2 inwardly, wherein the brake disk material 5 adjacent to the recess 3 serves as the switching portion.
- Fig. 3b two recesses 3 are provided in the brake disc 2, wherein the adjacent to the recesses 3 brake disc material 5, including the
- Brake disc material 5 between the recesses 3, as the switching portion is used.
- Fig. 3c The arrangement in Fig. 3c is provided with a recess 9 in the brake disc 2.
- Brake disc material 5 and the brake disc material 10 in the recess 9 as one of the switching sections.
- the different distances from the brake disk material 5 between the recesses 3 and from the brake disk material 10 in the recess 9 can be recognized
- the arrangement in FIG. 3d has two recesses 9 in the brake disk 2.
- the recesses 9 have from the outer disc diameter
- the switching sections are also here both to the
- Fig. 3e is the arrangement with adjacent recesses 9, which have different depths of the outer disc diameter, and with one of the recesses 3 is shown.
- adjacent recesses 9 which have different depths of the outer disc diameter
- recesses 3 is shown.
- Fig. 4a and Fig. 4b show in a half-section a schematic representation of another brake disc 2, in which the between the recesses 3 and in the
- Recesses 9 provided brake disk material 5, 10 is formed by webs.
- Fig. 4a shows a view in the direction of the axis 4 and
- Fig. 4b is a view perpendicular to the direction of the axis 4.
- the webs are formed either as ribs 12 or 13 as a dome. Alternatively, other Fierstellmaschine are possible.
- Brake disc 2 which adjacent to the recess 3 or the recess 9
- Brake disc material 5, 10 detected by the sensor 6 each as the switching section.
- different depths of the recesses 9 are detected.
- the sensor 6 then outputs a signal which corresponds to a presence and possibly a depth information of the switching section.
- only the recesses 3 are detected.
- the evaluation unit 8 analyzes the signals and determines a cyclic pattern of the signals while the brake disk 2 is rotated. For the detection of the cyclic pattern several switching sections are provided. Alternatively, either only one switching section may be provided, or the switching sections must be designed such that at least one switching section differs from other switching sections with regard to its depth or the distance.
- the cyclical pattern that is, for example, the single signal in the presence of only one switching section, or the pattern in which at least one of the signals due to the at least one different switching section of the
- the rotational speed of the brake disc 2 is then determined. From the speed of the brake disc 2, the speed of the vehicle can then be determined.
- a rotational angle position of the brake disc can also be determined.
- the evaluation unit 8 analyzes the signals and determines a cyclic pattern of the signals while the brake disc 2 is rotated. For the detection of the cyclic pattern, either only one switching section may be provided here, or the switching sections must be designed so that at least one
- Switching section different from other switching sections.
- the cyclic pattern that is, for example, the single signal in the presence of only one switching section, or the pattern in which at least one of the signals due to the at least one different switching section of the remaining signals
- the cyclic pattern is associated with a rotational angular position of the brake disc 2, so that predetermined features of the cyclic pattern correspond to predetermined locations, ie predetermined angle data. According to a desired accuracy of the rotational angular position, only the signals of the sensors are evaluated by the switching sections or, in the case of a desire for greater accuracy, these signals are interpolated.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018203700.0A DE102018203700B4 (de) | 2018-03-12 | 2018-03-12 | Drehwinkelerfassungseinrichtung für eine Komponente einer Bremse eines Fahrzeugs und Verfahren zum Bestimmen einer Drehwinkelposition der Komponente |
PCT/EP2019/054157 WO2019174874A1 (de) | 2018-03-12 | 2019-02-20 | Drehwinkelerfassungseinrichtung für eine komponente einer bremse eines fahrzeugs und verfahren zum bestimmen einer drehwinkelposition der komponente |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3765859A1 true EP3765859A1 (de) | 2021-01-20 |
Family
ID=65628732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19708242.3A Withdrawn EP3765859A1 (de) | 2018-03-12 | 2019-02-20 | Drehwinkelerfassungseinrichtung für eine komponente einer bremse eines fahrzeugs und verfahren zum bestimmen einer drehwinkelposition der komponente |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3765859A1 (de) |
CN (1) | CN111837042B (de) |
DE (1) | DE102018203700B4 (de) |
WO (1) | WO2019174874A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110966328B (zh) * | 2020-01-02 | 2021-03-30 | 中车青岛四方车辆研究所有限公司 | 制动夹钳单元的实时状态监测装置、制动夹钳单元及方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8804239U1 (de) * | 1987-06-05 | 1988-06-01 | TA Triumph-Adler AG, 8500 Nürnberg | Sicherheitsvorrichtung für Kraftfahrzeugbremsen |
DE4402959C2 (de) * | 1994-02-01 | 1997-02-20 | Bpw Bergische Achsen Kg | Vorrichtung zur Impulserzeugung an Fahrzeugrädern |
DE19637482C2 (de) * | 1996-09-14 | 2002-01-10 | Fte Automotive Gmbh | Bremsscheibe für eine Motorrad-Scheibenbremsanlage |
EP0980805B1 (de) * | 1998-08-20 | 2009-02-11 | Continental Automotive GmbH | Passiver GMR-Sensor für Antiblockierbremssysteme |
DE19957632B4 (de) * | 1999-11-30 | 2010-12-30 | Volkswagen Ag | Radbremsenanordnung und Verfahren zur Steuerung des Radbremsmomentes |
DE10243127B4 (de) * | 2002-09-17 | 2019-04-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Sensorvorrichtung zur Erfassung der Drehzahl eines Fahrzeugrades |
DE202006001597U1 (de) * | 2006-02-02 | 2006-04-20 | Festo Ag & Co | Drehantrieb mit Positionserfassungseinrichtung |
EP1870679A1 (de) * | 2006-06-20 | 2007-12-26 | Hübner Elektromaschinen GmbH | Brems- und/oder Blockiereinrichtung mit magnetischem Winkelcodierer |
US7501811B2 (en) * | 2007-03-26 | 2009-03-10 | Nsk Ltd. | Displacement measuring apparatus and load measuring apparatus of rotating member |
US9404791B2 (en) * | 2009-06-06 | 2016-08-02 | Nuovo Pignone S.P.A. | Lateral, angular and torsional vibration monitoring of rotordynamic systems |
DE102011077034A1 (de) * | 2011-06-07 | 2012-12-13 | Continental Teves Ag & Co. Ohg | Bremsscheibe |
DE102011078717A1 (de) * | 2011-07-06 | 2013-01-10 | Continental Teves Ag & Co. Ohg | Einrichtung zur Messung von Winkel und Winkelgeschwindigkeit oder Weg und Geschwindigkeit |
DE102015105712A1 (de) * | 2015-04-14 | 2016-10-20 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Vorrichtung zum Befestigen eines Bremssattels |
US10768195B2 (en) * | 2016-08-15 | 2020-09-08 | Dana Heavy Vehicle Systems Group, Llc | Two-channel wheel speed sensor system |
-
2018
- 2018-03-12 DE DE102018203700.0A patent/DE102018203700B4/de active Active
-
2019
- 2019-02-20 WO PCT/EP2019/054157 patent/WO2019174874A1/de unknown
- 2019-02-20 CN CN201980018575.7A patent/CN111837042B/zh active Active
- 2019-02-20 EP EP19708242.3A patent/EP3765859A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN111837042A (zh) | 2020-10-27 |
CN111837042B (zh) | 2023-04-14 |
DE102018203700A1 (de) | 2019-09-12 |
DE102018203700B4 (de) | 2023-10-12 |
WO2019174874A1 (de) | 2019-09-19 |
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