KR20170093407A - Disconnector for four-wheeled vehicle having angle sensor and four-wheeled vehicle having the disconnector - Google Patents

Disconnector for four-wheeled vehicle having angle sensor and four-wheeled vehicle having the disconnector Download PDF

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Publication number
KR20170093407A
KR20170093407A KR1020160014769A KR20160014769A KR20170093407A KR 20170093407 A KR20170093407 A KR 20170093407A KR 1020160014769 A KR1020160014769 A KR 1020160014769A KR 20160014769 A KR20160014769 A KR 20160014769A KR 20170093407 A KR20170093407 A KR 20170093407A
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KR
South Korea
Prior art keywords
wheel drive
angle sensor
gear
actuator
shift fork
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Application number
KR1020160014769A
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Korean (ko)
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KR101791329B1 (en
Inventor
강인구
Original Assignee
현대위아 주식회사
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Priority to KR1020160014769A priority Critical patent/KR101791329B1/en
Publication of KR20170093407A publication Critical patent/KR20170093407A/en
Application granted granted Critical
Publication of KR101791329B1 publication Critical patent/KR101791329B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/34Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • B60K17/354Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having separate mechanical assemblies for transmitting drive to the front or to the rear wheels or set of wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/22Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24Arrangements of mountings for shafting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/34Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/02Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20Screw mechanisms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/06Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/32Gear shift yokes, e.g. shift forks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20Screw mechanisms
    • F16H2025/2062Arrangements for driving the actuator

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

The present invention relates to a four-wheel drive disconnector, and a four-wheel drive vehicle having the same. More specifically, the four-wheel drive disconnector accurately determines whether or not four-wheel drive is engaged or released to prevent control failure of the four-wheel drive. The present invention comprises: a shift fork; a screw; an actuator; and an angle sensor.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a four-wheel drive disconnection device using an angle sensor and a four-wheeled vehicle having the four-

The present invention relates to a four-wheel drive dis connector device and a four-wheel drive vehicle including the device, and more particularly to a four-wheel drive disconnection device capable of accurately determining whether a four- And a four-wheel drive vehicle including the device.

Generally, a four-wheel drive vehicle requires a full-time four-wheel drive system, in which the main drive wheels and the longitudinal drive wheels always operate, and two-wheel drive as the main drive wheels. Part-time four-wheel drive system that drives the four-wheel drive by transmitting the driving force to the longitudinal drive wheels in accordance with the four-wheel drive system.

In addition, the four-wheel drive vehicle is divided into a system in which the power of the engine is distributed to the main drive wheel and the subordinate drive wheels to travel in four-wheel drive, a main drive wheel is driven by the engine, and a subordinate drive wheel is driven by the motor, .

Meanwhile, the longitudinal drive wheels are driven by four-wheel drive or power transmission from a power source such as an engine or a motor, and are blocked by two-wheel drive. At this time, the connection between the power source and the longitudinal drive wheels is engaged or disengaged, And a device for switching four-wheel drive is referred to as a disconnect device.

FIG. 1 shows a conventional disconnector device (Korean Patent Laid-Open Publication No. 2014-0013414). The conventional disconnector device includes an input shaft 10 connected to a drive source such as an engine or a motor and rotated, An output shaft 20 spaced apart from the input shaft 10 on an extension line of the rotation axis of the output shaft 10 and transmitting a driving force to the longitudinal drive wheels through the constant velocity joint 30, And is axially movable along the outer periphery of the input shaft 10 and the output shaft 20 so as to be engaged with the input shaft 10 and the neighboring foot shaft 20, A sleeve (40) for fastening the output shaft (10) and the output shaft (20) to each other or moving to the outer periphery of one of the shafts to release the engagement between the input shaft (10) and the output shaft A shift fork 50 for moving the gear sleeve 40 in the axial direction, and an actuator 60 for linearly moving the shift fork 50. [

The detection of the position of the sleeve 40 is accomplished through a linear sensor 70 sensing the position of the sleeve 40 by detecting the position of the shift fork 50 by contact.

Further, the actuator 60 is controlled by the position information sensed by the linear sensor 70.

The linear sensor 70 measures the position of the shift fork 50 in accordance with the degree of pressing or pressing in contact with the inclined surface 51 of the shift fork 50. In this method, It is difficult to measure the exact position of the shift fork 50 and a measurement error due to vibrations of the vehicle may occur, resulting in a failure of control of the four-wheel drive.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a four-wheel drive dis connector device capable of precisely measuring the position of a shift fork to prevent four- .

Another object of the present invention is to provide a four-wheel drive disconnector device capable of accurately measuring the position of a shift fork at a low cost and a four-wheel drive vehicle having the device.

In order to achieve the above object, the present invention provides a control system for controlling four-wheel drive of a vehicle by transmitting or interrupting a driving force between an input shaft connected to a driving source such as an engine or a motor and an output shaft separated from the input shaft, A four-wheel drive discrete connector according to any one of claims 1 to 3, wherein a sleeve is provided on an outer periphery of the separation shaft between the input shaft and the output shaft to axially move along an outer surface of the shaft and to fasten or unfasten the input shaft and the output shaft, A shift fork able to move the sleeve axially in contact with the sleeve; A screw coupled with the shift fork and reciprocating the shift fork in a direction parallel to the axial direction by rotation; An actuator for rotating the screw; And an angle sensor for measuring an angle of rotation of the actuator to control the operation of the actuator.

In a preferred embodiment, a reduction gear is provided between the angle sensor and the actuator, the reduction gear includes a first gear connected to the rotation shaft of the actuator, a gear connected to the rotation shaft of the angle sensor, 2 gear, and the first gear rotates more than one rotation while the second gear rotates once.

In a preferred embodiment, the rotation axis of the angle sensor rotates forward or reverse in a range between 0 and 360 degrees.

In a preferred embodiment, the angle sensor measures an angle between 0 and 360 degrees without exceeding 360 degrees.

In a preferred embodiment, the speed reducer is composed of a plastic spur gear.

In a preferred embodiment, the shift fork moves the sleeve while the rotation axis of the angle sensor rotates one rotation to engage or disengage the input shaft and the output shaft with each other.

The present invention also relates to an input shaft that rotates on the power of an engine or a motor; An output shaft connected to the longitudinal drive wheels; And the four-wheel drive discrete device for controlling four-wheel drive by engaging or disengaging the input shaft and the output shaft with each other.

The present invention has the following excellent effects.

First, according to the four-wheel drive discrete device of the present invention and the four-wheel drive vehicle including the device, since the position of the shift fork can be detected by measuring the rotation angle of the screw without using the linear sensor, There is an advantage that the possibility of failure of the four-wheel drive control due to abrasion or vibration of the contact portion can be reduced.

In addition, according to the four-wheel drive discrete device of the present invention and the four-wheel drive vehicle including the device, since the position of the shift fork can be detected by detecting the rotation of only a small angle by providing the reducer between the screw and the angle sensor, Can be reduced, and the cost can be reduced.

1 is a view showing a conventional four-wheel drive discrete connector device,
2 is a view showing a four-wheel drive discrete connector device according to a first embodiment of the present invention,
3 is a view showing a four-wheel drive discrete connector device according to a second embodiment of the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

[First Embodiment]

2, a four-wheel drive dis- connector device 100 according to a first embodiment of the present invention includes a four-wheel drive dis- connector device 100 according to a first embodiment of the present invention, And an output shaft 20 connected to the longitudinal drive wheels 20 and spaced apart from the input shaft 10 by a predetermined distance on the same axis as the input shaft 10, Wheel drive or two-wheel drive.

The present invention may also be provided as a complete four-wheel drive vehicle including the four-wheel drive dis connector device 100, the input shaft 10, and the output shaft 20. [

The input shaft 10 and the output shaft 20 are spaced apart from each other by an axial movement of the input shaft 10 along the outer circumferential surface of the shafts 10 and 20, And a sleeve (40) that transmits the driving force of the input shaft (10) to the output shaft (20) when it is simultaneously engaged with the output shaft (20) Respectively.

In addition, the sleeve 40 may be included as a component of the four-wheel drive discrete connector 100 according to the first embodiment of the present invention, or may not be included when present in the vehicle.

The four-wheel drive disconnector 100 according to the first embodiment of the present invention includes a shift fork 110, a screw 120, an actuator 130, and an angle sensor 140.

The shift fork 110 is reciprocally linearly movable in a direction parallel to the rotation axis of the shafts 10 and 20 and one side is fastened to the outer surface of the sleeve 40 to change the position of the sleeve 40.

Further, the shift fork 110 is guided by a shift rod 112 fixed at a predetermined position to perform linear motion.

The screw 120 is connected to the shift fork 110 and changes the rotational motion to a linear motion so that the shift fork 110 moves on the shift rod 112.

When the gears inside the sleeve 40 and the gears outside the shafts 10 and 20 are fastened to each other between the screw 120 and the shift fork 110, a spring slug may be provided.

The actuator 130 is an electric motor that is rotated by electricity. The actuator 120 rotates the screw 120 by a predetermined angle to move the shift fork 110 to a four-wheel drive engagement position or a four-wheel drive release disengagement position.

Further, if the actuator 130 can rotate the screw 120, a hydraulic or pneumatic actuator may be used in addition to the electric motor.

Also, the rotation axis of the actuator 130 may be directly coupled to the screw 120, but is preferably coupled through the worm gear 150 for proper torque and load reduction.

The angle sensor 140 measures a rotation angle of the actuator 130 and transmits the rotation angle to the four-wheel drive controller (not shown) that controls the actuator 130. The four- .

In addition, the angle sensor 140 can be any sensor that can detect the degree of rotation of the rotary shaft such as a capacitive type or an optical type.

When the actuator 130 rotates the screw 120 through the worm gear 150, the angle sensor 140 directly measures the rotation angle of the worm gear 130, You may.

In other words, the four-wheel drive disparate device 100 according to the first embodiment of the present invention is different from the conventional disconnector device shown in Fig. 1 in that the degree of movement of the shift fork 110 is set at an angle Since it is measured using a sensor, it is advantageous in that it is robust against foreign substances and vibration, and can be precisely measured.

[Second Embodiment]

When the rotation shaft of the angle sensor 140 is directly connected to the screw 120, the shift fork 110 rotates about 2 to 3 times. In this case, Around the wheel should be rotated.

That is, the angle sensor 140 should use an expensive angle sensor capable of measuring 0 to 720 degrees and 0 to 1080 degrees.

In addition, since the accuracy of the measurement is lowered as the number of rotations of the angle sensor 140 increases, the position of the shift fork 110 should be measured with a minimum rotation angle.

A four-wheel drive dis- connector device 200 according to a second embodiment of the present invention is a four-wheel drive dis- connector device 200 according to a second embodiment of the present invention. The present invention further includes a reduction gear 210 in addition to the shift fork 110, the screw 120, the actuator 140 and the angle sensor 140 as compared with the four-wheel drive disconnector 200 according to the first embodiment.

The shift fork 110, the screw 120 and the actuator 140 of the four-wheel drive disnector device 200 according to the second embodiment of the present invention are the same as those of the four-wheel drive disconnector device 100 according to the first embodiment of the present invention, Is substantially the same as the shift fork 110, the screw 120, and the actuator 140 of the actuator 200, and therefore the description thereof will be omitted.

The angle sensor 140 is the same as the angle sensor 140 according to the first embodiment of the present invention in that it measures the rotation angle of the screw 120 but the rotation range of the rotation axis is in the range of 0 to 360 degrees, Only one wheel is rotated forward or reverse, and angle is measured.

That is, the angle sensor 140 according to the second embodiment of the present invention is provided with a low-cost angle sensor for measuring an angle of 0 to 360 degrees instead of a sensor for measuring 0 to 720 degrees and 0 to 1080 degrees.

In addition, since the range of the measurement angle is reduced, the measurement error is reduced in proportion to the range.

Also, while the shift fork 110 is moved and the input shaft 10 and the output shaft 20 are engaged or disengaged from each other, the rotational axis of the angle sensor 140 rotates forward or backward one turn .

The reduction gear 210 is connected between the angle sensor 140 and the rotary shaft of the screw 120 or the rotation axis of the actuator 130 to reduce the rotation of the screw 120, ).

The reduction gear 210 includes a first gear 211 coupled to the rotation shaft of the screw 120 and a second gear 211 coupled to the rotation shaft of the angle sensor 140, And a gear 212.

Also, while the second gear 212 rotates once, the first gear 211 rotates or rotates by more than one rotation.

That is, the outer periphery of the second gear 212 is larger than the outer periphery of the second gear 211.

Accordingly, the angle sensor 130 can detect whether or not the input shaft 10 and the output shaft 20 are engaged during one rotation of the rotation shaft.

In addition, the reduction gear 210 may be formed of a spur gear made of a plastic material to reduce weight and reduce manufacturing costs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

100,200: Four-wheel drive dis connector device
110: shift fork 111: spring slug
112: Shift rod 120: Screw
130: Actuator 140: Angle sensor
150: Worm Gear

Claims (7)

A four-wheel drive disconnector device for controlling four-wheel drive of a vehicle by transmitting or interrupting a driving force between an input shaft connected to a driving source such as an engine or a motor and an output shaft separated from the input shaft and connected to a longitudinal drive wheel,
A sleeve for axially moving along the outer surface of the shaft and fastening or disengaging the input shaft and the output shaft,
A shift fork capable of moving axially in the sleeve in contact with the sleeve;
A screw coupled with the shift fork and reciprocating the shift fork in a direction parallel to the axial direction by rotation;
An actuator for rotating the screw;
And an angle sensor for measuring an angle of rotation of the actuator to control an operation of the actuator.
The method according to claim 1,
A reduction gear is provided between the angle sensor and the actuator,
Wherein the speed reducer includes a first gear connected to a rotary shaft of the actuator, and a second gear gear-coupled to the first gear and connected to a rotary shaft of the angle sensor,
And the first gear rotates more than one rotation while the second gear rotates once.
3. The method of claim 2,
Wherein the rotation axis of the angle sensor rotates in the forward direction or the reverse direction in a range between 0 degrees and 360 degrees.
The method of claim 3,
Wherein the angle sensor measures an angle between 0 and 360 degrees without exceeding 360 degrees.
3. The method of claim 2,
Wherein the speed reducer is formed of a spur gear made of a plastic material.
The method according to claim 1,
Wherein the shift fork moves the sleeve while the rotation axis of the angle sensor rotates one time to engage or disengage the input shaft and the output shaft with each other.
An input shaft that rotates to the power of the engine or motor;
An output shaft connected to the longitudinal drive wheels; And
The four-wheel drive vehicle according to any one of claims 1 to 6, wherein the four-wheel drive disconnector device controls the four-wheel drive by engaging or disengaging the input shaft and the output shaft with each other.
KR1020160014769A 2016-02-05 2016-02-05 Disconnector for four-wheeled vehicle having angle sensor and four-wheeled vehicle having the disconnector KR101791329B1 (en)

Priority Applications (1)

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KR1020160014769A KR101791329B1 (en) 2016-02-05 2016-02-05 Disconnector for four-wheeled vehicle having angle sensor and four-wheeled vehicle having the disconnector

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KR1020160014769A KR101791329B1 (en) 2016-02-05 2016-02-05 Disconnector for four-wheeled vehicle having angle sensor and four-wheeled vehicle having the disconnector

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KR20170093407A true KR20170093407A (en) 2017-08-16
KR101791329B1 KR101791329B1 (en) 2017-10-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112392933A (en) * 2020-11-19 2021-02-23 方盛车桥(柳州)有限公司 Through shaft assembly capable of being separated by power
WO2023155388A1 (en) * 2022-02-18 2023-08-24 中国第一汽车股份有限公司 Speed reducer disconnecting device, speed reducer, and vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101389237B1 (en) * 2013-04-12 2014-05-19 현대위아 주식회사 Disconnector-type clutch for rear wheel-driving device in four-wheel driving electric vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112392933A (en) * 2020-11-19 2021-02-23 方盛车桥(柳州)有限公司 Through shaft assembly capable of being separated by power
WO2023155388A1 (en) * 2022-02-18 2023-08-24 中国第一汽车股份有限公司 Speed reducer disconnecting device, speed reducer, and vehicle

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