KR102104724B1 - Automobile tire wear detection system - Google Patents

Abstract

The present invention relates to a tire wear level detection system for a vehicle and, more specifically, to a tire wear level detection system for a vehicle, which is easily carried, and can easily and quickly check a tire wear level of a running vehicle in real time at any time without limitation of a space to prevent accidents and to promote safe driving. Moreover, the wear degree of various types of tires can be immediatedly detected by one system to improve efficiency and convenience in use.

Description

Automotive tire wear detection system {Automobile tire wear detection system}

The present invention relates to a tire wear level detection system of a vehicle, and more specifically, it is easy to carry and can instantly and quickly check the tire wear level of a vehicle in which it is running in real time without limitation in any place to prevent a safety accident. The present invention relates to a tire wear detection system of a vehicle that not only promotes safe driving, but also can detect various types of tire wear immediately with a single system, thereby improving efficiency and convenience in use.

With the development of the automobile industry, there has been a constant desire for consumers to find a more convenient automobile.

Accordingly, recently, vehicles equipped with an intelligent system for providing or processing information recognizable through a sensor in a vehicle have been released.

In an intelligent system designed to provide various status information of a vehicle, tires have been excluded from information provided until recently.

However, in recent years, under the name of smart tires or intelligent tires, studies have been conducted to incorporate tires as part of an intelligent system.

The first realization of the intelligent concept applied to tires is the Tire Pressure Monitoring System (TPMS).

The TPMS consists of a wireless transmitter mounted on four tire inner rings, a pressure and temperature sensor module, and a dedicated receiver installed in the driver's seat.

TPMS checks the pressure status of all tires every time the engine is turned on, pressure information is transmitted to the instrument cluster, and a warning is sent to the driver in case of danger, and the emergency is wirelessly indicated on the display.

In addition, TPMS maintains proper air pressure to improve tire durability, ride comfort, braking power, and improve fuel efficiency.

In particular, for beginner and female drivers who are not familiar with tire management, it is very helpful to select a vehicle equipped with TPMS.

The safety level of tires is the most fundamental factor in the safety of automobiles, and the tire air pressure monitoring system (TPMS) is already in the commercialization stage. In the United States, the tire air pressure monitoring system is expected to be enacted and implemented.

However, even if the above tire air pressure monitoring system is mounted on a vehicle, it can be considered that a system that basically does not consider the safety of the tire itself is meaningless.

That is, the conventional tire air pressure monitoring system already provides information on the tire in a state in which the tire is punctured or leaking, but does not provide information to prevent it.

For example, when the tire is worn and immediately before puncture, the tire air pressure will be monitored in a normal state, and the user can recognize the abnormality of the tire only after the puncture occurs.

Therefore, it can be said that monitoring only the air pressure of the tire still has problems in safe driving of the vehicle.

Therefore, the development of a technique for a method capable of preventing the occurrence of an abnormal condition in advance by monitoring the wear condition of the tire in advance.

Typically, the tire is made of a rubber material having a predetermined elastic force to cushion the impact force when the tire 1 contacts the ground, as shown in FIG. Inside the tire 1, a space portion 1a into which air is filled is formed.

In addition, when the use time of the tire 1 is prolonged, the contact surface in contact with the ground is worn by the frictional force, and thus, when a certain amount of wear progresses, the tire 1 must be replaced. If not, it may cause a large accident due to damage to the tire 1 while driving.

So far, the amount of wear of the tire 1 has been checked by visual inspection, but recently, there have been disclosed a number of techniques capable of detecting the amount of wear of the tire 1 as in the following prior art documents.

For example, in Korean Patent Publication No. 10-2005-0119795, a plurality of resistors that can be sequentially damaged according to the surface wear of a tire is installed inside the tire, and a battery voltage is connected to the resistor via a wire to measure the measured voltage value. After modulating with an RF signal, it is possible to check the degree of tire wear in the driver's seat, which has the advantage of real-time measurement of tire wear and immediate visibility by the driver.

However, in order to realize this, the tire itself must be newly manufactured, and there is a limit to practical use such as having to supply power for each tire.

In addition, Korean Patent Publication No. 10-2015-0017515 has an electrically conductive rubber tape formed along the wear limit line of the tire in the tread of the tire, connected to the electrically conductive rubber tape through a conductive wire, and mounted on the wheel of the tire. It has a wear detection unit for detecting electrical property changes due to disconnection caused by wear of the electrically conductive rubber tape, and a communication unit for transmitting tire wear state information to the electronic control device of the vehicle according to the signal detected by the wear detection unit In addition, this also has the advantage of being able to measure tire wear in real time and allow the driver to see it immediately.

Nevertheless, since the electrically conductive rubber tape is adhered to the tread of the tire, it is easy to fall off while driving, and in order to prevent this, the tire must also be newly designed, which limits the practicality in this case as well.

In addition, the Korean Patent Publication No. 10-2015-0057598 is installed on one side of an intelligent tire and an intelligent tire and measures a deformation amount of the intelligent tire to generate deformation information, and a measurement sensor that is installed on a vehicle to receive the deformation information generated. It includes a tire electronic control unit (ECU) that generates intelligent tire abnormal wear status when a certain level of waveform is continuously detected for a certain period of time using module and deformation information. will be.

However, the probability of malfunction of the control system is included in the ECU by including a configuration for diagnosing tire wear in situations where there is a high risk of safety accidents due to problems in the vehicle control system, such as sudden accidents that are an issue at home and abroad. This can also be perceived as a problem, as it increases the consumer's distrust and becomes an anxiety factor that cannot eliminate the risk of safety accidents.

In addition, Korean Patent Registration No. 10-1541739 includes a complicated configuration such as a steering sensor, a slip sensor, a control unit, and a display unit, so that it is possible to increase the effectiveness and accuracy in abrasion measurement, but even in this case, it is necessary to include ECU control. Therefore, there is a limit that can not resolve the consumer's distrust in terms of safety associated with sudden earthquakes.

Domestic Patent Publication No. 10-2005-0119795 (2005.12.22.) Apparatus and method for displaying tire wear amount Domestic Patent No. 10-2015-0017515 (2015.02.17.) Tire for automatic detection of wear condition Domestic Patent Publication No. 10-2015-0057598 (2015.05.28.) Tire wear condition checking device and method Domestic registered patent No. 10-1541739 (2015.07.29.) Tire wear detection device and method

The present invention was created to solve the problems in the prior art as described above, it is easy to carry, and it is easy and quick to check the tire wear degree of the vehicle in which it is operating in real time, easily and quickly at any time, without limitation in place. The main purpose is to provide a tire wear detection system for automobiles, which not only prevents accidents and promotes safe driving, but also detects various types of tire wear with one system and improves efficiency and convenience in use. There is this.

The present invention, as a means for achieving the above object, is a portable tire detection system of a vehicle that is portable and attached to and attached to a wheel fender of a vehicle, comprising: a pair of base boxes; A pair of slide guides fixed to upper surfaces of both ends of the base box, attached to and detached from a wheel fender of a vehicle, and having an arc shape and facing each other; It includes; a measurement unit equipped with a measuring instrument for detecting a groove depth that is an interval between a groove and a block tread of an tire through an ultrasonic sensor while moving along the slide guide while the pair of slide guides are stuck on opposite surfaces. It provides a tire wear detection system for a vehicle, characterized in that the measured value transmitted from the short-range wireless communication unit mounted on the measurement unit is displayed on the display of the vehicle.

At this time, the wheel fender includes a magnetic material, and the outer peripheral surface of the slide guide has a feature in that a magnet is embedded and fixed and detachable.

In addition, a drive motor is installed at the center of the length of one side of the base box, a wire drum is fixed to the motor shaft of the drive motor, and one end of the drive wire is fixed to the wire drum to be wound and configured. The other end of the drive wire is fixed to the end of the measuring unit through the guide groove, and one end of the coil spring is fixed to both ends of the other base box, and each other end of the coil spring is also fixed to the end of the measuring unit. There is this.

In addition, the drive wires are configured such that each of the two wires can be simultaneously wound and unwound on one wire drum, and each drive wire is also characterized by being driven by a single drive motor.

In addition, the slide guide has a feature in that it is designed to be variable in length by designing it to be inserted and pulled in the form of a telescope in which a part of the length is segmented.

In addition, the measuring unit includes a rectangular box-shaped measuring housing; A measuring instrument guide groove is formed on a lower surface of the measuring housing; The instrument is installed to be slidable along the instrument guide groove; On both ends of the measuring housing, a slider is inserted into the guide groove and slides along the guide groove; One end of the driving wire and one end of the coil spring are fixed to one end and the other end of the slider, respectively; The measuring instrument includes a controller that is a type of microprocessor, and the controller includes an oscillator that oscillates ultrasonic waves, a receiver that receives reflected ultrasonic waves, a wireless communication module mounted on a vehicle display, and a wireless communication unit capable of short-range wireless communication. , The memory that measures and stores the depth value of the groove, which is the distance between the initial groove of the new tire and the block tread, is connected, and the controller calculates the abrasion information calculated by comparing with the memory information based on the received information and controls the controller. It is also characterized in that it is transmitted to a display of a vehicle through a wireless communication unit and the display is received and controlled to be displayed to the driver.

In addition, the means for sliding the instrument comprises: four guiding rolls installed near four corners with the instrument guiding groove interposed between the instrument housings; A belt fixed to the guide roll in the form of a caterpillar and fixed to a part of the lower surface of the instrument; A driving pulley coupled to a part of the belt to move the belt; A belt motor fixed to the inner bottom surface of the instrument to rotate the drive pulley and rotated in a forward or reverse direction according to a control signal from a controller; A protrusion protruding from the lower center of the measuring instrument and fitted into the measuring instrument guide groove; It is also characterized in that it includes a limit switch that is installed at both ends of the instrument guide groove to transmit a contact signal with the projection to the controller to change the rotation direction of the belt motor.

In addition, the belt is a timing belt, the driving pulley is a timing pulley that is fitted to the timing belt to drive it, and the belt motor is also characterized in that it is a step motor that rotates forward and backward within a certain range.

In addition, a fixed groove is further formed symmetrically in the radial direction on the upper and lower sides of the slider, a plurality of ball grooves are formed on the outer peripheral surface of the slider between the fixed grooves, a ball is inserted into the ball groove, and the outer peripheral surface of the slider is It also has a feature in that a part of the ball is kept exposed through the ball hole by fitting and fixing the ball cover formed with the ball hole corresponding to the ball groove and the hooking end being inserted into the fixing groove.

According to the present invention, the following effects can be obtained.

First, it is easy to carry, so it is possible to check the wear degree of the tire regardless of time and place.

Second, since it is not directly controlled by the ECU, which is the control system of the vehicle, it is free from accidents such as sudden power failure and unknown car safety accidents.

Third, even if different timers are applied depending on the type of vehicle, it is possible to measure wear on a plurality of unspecified tires regardless of this.

Fourth, it is equipped with a wireless communication function, so it can be directly output to the display of a vehicle, so it can be checked in real time when measuring wear.

Fifth, since it is driven by its own power regardless of the vehicle, it does not degrade the driving performance of the vehicle.

Sixth, it improves driving safety by notifying the exact life of the tire through measuring the wear degree of the tire.

1 is an exemplary cross-sectional view showing a tire structure of a general vehicle.
Figure 2 is an exemplary perspective view showing the appearance of the tire wear detection system of a vehicle according to the present invention.
3 is an exemplary side cross-sectional view of FIG. 2.
Figure 4 is an exemplary view for explaining the driving relationship of the tire wear detection system of a vehicle according to the present invention.
5 is an exemplary view of a measurement unit constituting a tire wear level detection system for a vehicle according to the present invention.
6 is an exemplary plan view illustrating the driving relationship of FIG. 5.
7 is a configuration block diagram of a measuring instrument constituting the measuring unit of FIG. 5.
8 is an exemplary view showing a variation of the slider of the measuring instrument illustrated in FIG. 5.

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

Prior to the description of the present invention, the following specific structures or functional descriptions are merely exemplified for the purpose of illustrating the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be implemented in various forms, It should not be construed as being limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention can be applied to various changes and may have various forms, so specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific disclosure form, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The tire wear degree detection system of a vehicle according to the present invention is configured to be detachably attached to a wheel fender portion in which a tire of the vehicle is mounted, and includes a base box 100 as illustrated in FIGS. 2 to 4.

The base box 100 is a member having a length corresponding to the width of the wheel fender portion and has a long rectangular shape, and a pair is provided.

In particular, the length of the base box 100 is preferably designed to cover most of the width of the tire in the range because the width of the tire mounted on the vehicle is not infinitely large and is within a certain standard range.

Normally, compared to the case where the narrow tire mounted on a small car is 215 mm, the difference between the generally known wide tires is 250 mm, and thus the difference is 35 mm, so that the length of the base box 100 according to the present invention can cover, for example, the wide tire 250 mm. By design, it is desirable to be configured to measure all narrow tires.

In addition, a pair of arched slide guides 200 are fixed to the upper surface of the base box 100.

The slide guide 200 may be integrally fixed to both upper surfaces of the base box 100, or may be configured to be detachable.

At this time, the base box 100 is composed of a rigid (Rigid) material, but the slide guide 200 must be attached to and detached from the wheel fender of the vehicle, so it is relatively harder than the base box 100, That is, it is made of a slightly flexible material.

This flexible material can be molded from synthetic resins, particularly thermoplastics.

In addition, a measurement unit 300 is installed on a surface where the pair of slide guides 200 face each other, and is configured to move along the slide guide 200.

Therefore, the measurement unit 300 has an arcuate motion trajectory and can accurately measure the wear condition of the tire surface, that is, the degree of wear while moving while maintaining a constant distance from the surface of the tire.

In addition, a pair of slide guides 200 facing each other are formed with a slit 210 cut in a certain width as shown in enlarged view in FIG. 3, and having a circular cross section enlarged from an end of the slit 210 The guide groove 220 is formed.

And, as illustrated in Figures 3 and 4, a drive motor 110 is installed at the center of the length of one side of the base box 100, the wire drum 120 is fixed to the motor shaft of the drive motor 110, The wire drum 120 is configured such that one end of the driving wire 130 is fixed and wound, and the other end of the driving wire 130 is fixed to the end of the measurement unit 300 through the guide groove 220. .

That is, the driving wire 130 is configured so that two can be simultaneously wound and unwound on one wire drum 120 at the same time, and each driving wire 130 is wired through the guide groove 220 and then measured unit 300 ) Are fixed at both ends.

At this time, inside the base box 100 in which the driving motor 110 is installed, tension rolls R are respectively installed to guide the driving wire 130 and maintain tension properly, and the driving wire 130 is moved. It is preferably configured to be wound on the wire drum 120 via the tension roll (R).

Therefore, when one driving motor 110 is rotated and the wire drum 120 is rotated in the winding direction, the driving wire 130 is pulled while being wound, so that the measurement unit 300 is installed toward the driving motor 110. Will move.

In addition, one end of the coil spring 140 is fixed to both ends of the other side base box 100, and each other end of the coil spring 140 has an end of the measurement unit 300, that is, the driving wire 130 is bound. It is fixed at the opposite point.

Therefore, when the driving motor 100 is rotated in the unlocking direction, the measurement unit 300 that has moved while the coil spring 140 is elastically restored is returned to the home position.

Here, the diameter of the drive wire 130 is formed to be larger than the width of the slit 210, the guide groove 220 without going out through the slit 210 when the drive wire 130 is pulled or released It must be constructed so that it can only move inside.

In addition, a magnet 230 is fixed to the outer circumferential surface of the slide guide 200.

The magnet 230 is a means for detaching and attaching the slide guide 200 to a wheel fender of a vehicle, but is not necessarily limited thereto, but is the simplest and most effective detachable means.

Of course, in order to use the magnet 230, a magnetic material such as a steel plate must be provided on the wheel fender, and in some cases, the magnetic material powder is included in the manufacture of the wheel fender, without requiring a steel plate. It can also be configured to be attached to the magnet.

However, in the present invention, it is a prerequisite that the magnet 230 is a wheel fender that can be attached.

In addition, the slide guide 200 is designed to be inserted and pulled out in the form of a telescope, that is, an antenna in which a part of the length is segmented, so that the length is variable, so that the tire diameter of a commercial vehicle can be measured from the largest to the smallest. It is more preferable to configure it.

However, since such a telescopic structure is a well-known structure, a detailed description is omitted here.

Meanwhile, the measurement unit 300 includes a measurement housing 310 having a square box shape, as illustrated in FIGS. 5 and 6.

However, in FIGS. 5 and 6, the measurement unit 300 is disposed upside down to perform the measurement operation, but for convenience of explanation, it is only shown upside down.

That is, the instrument 320 is disposed to face the tire during installation.

To continue the description, an instrument guide groove 312 is formed on a bottom surface (top surface in the city) of the measurement housing 300, and the instrument 320 is slidable along the instrument guide groove 312.

In addition, at both ends of the measurement housing 300, a neck 314 having a slightly smaller width so as to be fitted to the slit 210, and a cylinder-shaped slider integrally fixed to the neck 314 316 is formed.

At this time, the slider 316 is inserted into the guide groove 220 and must be slightly flexible as it moves along the guide groove 220.

In addition, one end of the driving wire 130 and one end of the coil spring 140 are fixed to the front end and the rear end of the slider 316, respectively.

In addition, the measuring instrument 320 can detect the wear degree of the tire using various measuring methods such as electronic, laser, infrared, and vision cameras, but the ultrasonic oscillator is used in the present invention.

That is, the measuring instrument 320 according to the present invention uses an ultrasonic sensor having an oscillation unit 322 for oscillating ultrasonic waves and a receiver 324 for receiving reflected sound waves that are reflected back.

For example, a brief explanation of the principle of measuring the wear degree of a tire is as follows.

Automotive tires include grooves and convex treads.At this time, since these convex treads wear in contact with the ground, the height difference between the grooves and the convex treads can be checked to accurately detect the degree of wear, i.e. wear. You can.

In other words, the distance difference value can be calculated through the difference between the time when the ultrasonic wave oscillated from the oscillation unit 322 returns after being irradiated to the groove and returned after being irradiated to the block tread. The distance difference value is the depth value from the convex tread to the groove.

Therefore, if this depth value for a new tire is measured and data before use, and the measured values for the used tire are compared with each other, the degree of wear or the presence or absence of abrasion can be accurately detected.

Of course, for a more accurate measurement, the starting point of the tires must be the same, so it is necessary to accurately mark the position on the tire.

For this measurement, the measuring device 320 includes a controller (CTR) that is a controller as a type of microprocessor, as illustrated in FIG. 7, and the controller (CTR) includes an oscillator 322 that oscillates ultrasonic waves and is reflected. The distance between the initial groove of the new tire and the block tread, that is, the home, the receiver 324 receiving ultrasonic waves, the wireless communication module (not shown) mounted on the display of the vehicle, and the wireless communication unit 326 capable of short-range wireless communication It includes a memory 328 to measure and store the depth value of the controller, based on the received information is calculated by the controller (CTR) and compared to the memory 328 wear information calculated by wear under the control of the controller (CTR) Transmitting to the display of the vehicle through the wireless communication unit 326, the display receives it and displays it to the driver, and simultaneously checks the tire wear information in real time. To make it possible.

In addition, for accurate measurement of the entire width and circumference of the tire, the measuring instrument 320 must be movable, so as shown in the example of FIG. 6, the measuring housing 310 has the measuring instrument guide groove 312 interposed therebetween. A pair of slots SL is formed, four guide rolls R1, R2, R3, and R4 are installed near the four corners, and the belt 330 is endless on the guide rolls R1, R2, R3, and R4. It is installed in the form of an orbit.

In addition, a driving pulley 342 is coupled to a part of the belt 330, the driving pulley 342 is fixed to the motor shaft of the belt motor 340, and the belt motor 340 is the measuring instrument 320. It is fixed to the inner bottom surface.

In particular, the belt 330 is a timing belt, and the driving pulley 342 uses a timing pulley that is fitted to the timing belt and drives it.

Therefore, accurate movement control is possible, and the belt motor 340 is a step motor that rotates forward and backward within a certain range.

In addition, a part of the belt 330 is fixed to the lower surface of the measuring device 320, and the fixed part is moved along the slot SL, so that there is no problem in moving.

In addition, a projection DT protrudes at the lower center of the measuring instrument 320, and the projection DT is inserted into the measuring guide groove 312 and slidably assembled along the measuring guide groove 312. It is assembled in a form that is not separated and separated.

This structure is configured to be locked by fixing a closing member (not shown) larger than the width of the instrument guide groove 312 on the protrusion DT while the protrusion DT is fitted into the instrument guide groove 312. It can be done, but such a structure is known and is generally omitted.

In addition, a limit switch 350 is installed at both ends of the instrument guide groove 312 for switching the driving of the belt motor 340, and the limit switch 350 is electrically connected to the controller CTR, The belt motor 340 is also connected to the controller CTR to receive a control signal.

Therefore, when the measuring instrument 320 reaches any one end of the measuring instrument guide groove 312, the protrusion DT comes into contact with the limit switch 350, and the controller CTR receiving the signal of the limit switch 350 is By changing the direction of the current applied to the belt motor 340 through the switching operation so that the belt motor 340 is rotated in reverse, the measuring instrument 320 continuously reciprocates along the measuring instrument guide groove 312 and continuously generates ultrasonic waves. Tire wear according to the reflected sound means can also be performed.

Furthermore, since the measuring device 320 is an element of the measuring unit 300, the driving motor 110 moves in an arcuate shape along the wheel fender shape of the vehicle, so that the measuring unit 300 moves in the arcuate direction in the width direction. As the measuring instrument 320 reciprocates several dozen times, it is possible to accurately detect the surface wear state of the tire in real time, as a kind of scanning function.

Particularly, in the present invention, since each of the batteries (not shown) is provided as a driving source for the driving motor 110 including the measuring instrument 320, it is not necessary to use the vehicle's battery as a power source, so it has no effect on the power system of the vehicle. It can be used safely without giving.

At this time, the degree to which the tire is pressed varies according to the number of occupants, so the measurement distance may vary, which may be considered.

In addition, by measuring the distance between the tires and the wear condition of each tire, the wear condition of the tire can also be checked. If the wear condition of the tire is confirmed, it is determined that the wheel alignment is not properly aligned or there is a problem with the pressure of the tire. The warning light on the dashboard can also be large.

In addition, as shown in the example of FIG. 8, in order to further smoothly slide the slider 316, the fixing groove 316a is further formed symmetrically in the radial direction on the upper and lower portions of the slider 316, and the fixing groove 316a ), A plurality of ball grooves 316b are formed on the outer circumferential surface of the slider 316, a ball BAL is inserted into the ball groove 316b, and the fixing groove 316a is inserted into the outer circumferential surface of the slider 316 to be caught. When the ball cover 316e having the bent end 316c and the ball hole 316d corresponding to the ball groove 316b is fitted and fixed, the ball BAL is partially exposed through the ball hole 316d. In addition, since it comes into contact with the clouds in the guide groove 220, the slip property is improved, so that a more smooth sliding is possible.

100: base box
200: slide guide
300: measurement unit

Claims (9)

As a system for detecting tire wear of a vehicle that is portable and attached to and attached to a wheel fender of a vehicle,
A pair of base boxes;
A pair of slide guides fixed to the upper surfaces of both ends of the base box, attached to and detached from a wheel fender of a vehicle, and having guides formed on opposite surfaces having an arc shape;
It includes; a measurement unit equipped with a measuring device that detects a groove depth that is an interval between a groove and a block tread of an tire through an ultrasonic sensor while moving along the slide guide while the pair of slide guides are stuck on opposite surfaces.
A tire wear detection system for a vehicle, characterized in that the measured value transmitted from the short-range wireless communication unit mounted in the measurement unit is displayed on the display of the vehicle. The method according to claim 1,
The wheel fender includes a magnetic material,
A tire wear detection system for a vehicle, characterized in that a magnet is buried and fixed on the outer circumferential surface of the slide guide and is detachable. The method according to claim 1,
A drive motor is installed at the center of the length of one side of the base box among the base boxes, a wire drum is fixed to the motor shaft of the drive motor, and one end of the drive wire is fixed to the wire drum so that it can be wound. The other end of the vehicle is fixed to the end of the measurement unit through the guide groove, the ends of the coil springs are respectively fixed to both ends of the other side base box, and each other end of the coil spring is fixed to the end of the measurement unit. Tire wear detection system. The method according to claim 3,
The drive wires are configured such that each of the two wires can be simultaneously wound on one wire drum and released at the same time, and each drive wire is driven by a single drive motor. The method according to claim 1,
The slide guide is a system for detecting tire abrasion of a vehicle, characterized in that a part of the length is segmented and designed to be inserted and pulled out in a telescopic form to enable variable length. The method according to claim 3,
The measuring unit includes a rectangular box-shaped measuring housing; A measuring instrument guide groove is formed on a lower surface of the measuring housing; The instrument is installed to be slidable along the instrument guide groove; On both ends of the measuring housing, a slider is inserted into the guide groove and slides along the guide groove; One end of the driving wire and one end of the coil spring are fixed to one end and the other end of the slider, respectively; The measuring instrument includes a controller that is a type of microprocessor, and the controller includes an oscillator that oscillates ultrasonic waves, a receiver that receives reflected ultrasonic waves, a wireless communication module mounted on a vehicle display, and a wireless communication unit capable of short-range wireless communication. , The memory that measures and stores the depth value of the groove, which is the distance between the initial groove of the new tire and the block tread, is connected, and the controller calculates the abrasion information calculated based on the received information and compares it with the memory information to control the wear degree of the controller A tire wear detection system for a vehicle, characterized in that it is transmitted to a display of a vehicle through a wireless communication unit and a display is received and controlled to be displayed to a driver. The method according to claim 6,
The means for sliding the measuring instrument,
Four guiding rolls installed in the vicinity of four corners with the instrument guiding groove interposed within the measuring housing; A belt fixed to the guide roll in the form of a caterpillar and fixed to a part of the lower surface of the instrument; A driving pulley coupled to a part of the belt to move the belt; A belt motor fixed to the inner bottom surface of the instrument to rotate the drive pulley and rotated in a forward or reverse direction according to a control signal from a controller; A protrusion protruding from the lower center of the measuring instrument and fitted into the measuring instrument guide groove; It is installed at both ends of the instrument guide groove, the tire wear detection system of a vehicle, characterized in that it comprises a limit switch for switching the rotational direction of the belt motor by transmitting a contact signal with the projection to the controller. The method according to claim 7,
The belt is a timing belt, the drive pulley is a timing pulley that is suitable for driving the timing belt, and the belt motor is a tire motor wear detection system, characterized in that the step motor is rotated forward and backward within a certain range. The method according to claim 6,
A fixed groove is further formed symmetrically in the radial direction on the upper and lower sides of the slider, a plurality of ball grooves are formed on the outer peripheral surface of the slider between the fixed grooves, a ball is inserted into the ball groove, and the fixed groove is formed on the outer peripheral surface of the slider. A tire wear detection system for a vehicle, characterized in that a part of the ball is exposed through the ball hole by fixing the ball cover formed with the bent engaging end and the ball hole corresponding to the ball groove.

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