WO2022108556A1 - Système de surveillance de pneus - Google Patents

Système de surveillance de pneus Download PDF

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Publication number
WO2022108556A1
WO2022108556A1 PCT/TR2021/051132 TR2021051132W WO2022108556A1 WO 2022108556 A1 WO2022108556 A1 WO 2022108556A1 TR 2021051132 W TR2021051132 W TR 2021051132W WO 2022108556 A1 WO2022108556 A1 WO 2022108556A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
processor unit
monitoring system
image sensor
vehicle
Prior art date
Application number
PCT/TR2021/051132
Other languages
English (en)
Inventor
Volkan OZDEMIR
Anil CALISKAN
Sezer SEKERLI
Original Assignee
Brisa Bridgestone Sabanci Lastik Sanayi Ve Ticaret Anonim Sirketi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brisa Bridgestone Sabanci Lastik Sanayi Ve Ticaret Anonim Sirketi filed Critical Brisa Bridgestone Sabanci Lastik Sanayi Ve Ticaret Anonim Sirketi
Publication of WO2022108556A1 publication Critical patent/WO2022108556A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/24—Wear-indicating arrangements
    • B60C11/246—Tread wear monitoring systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/068—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring chassis to tyre distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C2019/004—Tyre sensors other than for detecting tyre pressure

Definitions

  • the present invention relates to a tire monitoring system for detecting abnormalities in tires of land vehicles.
  • Vehicle tires may be worn by time, and the length of rubber blocks, which are known as tread in the art and which form tire patterns and which are provided on the back part of the tire, may get shortened and may become functionless. This can lead to sliding, decrease in braking distance, skidding on water and tire blow-outs. Therefore, tire condition must be monitored regularly. Additionally, tire surface can get muddy and/or stones can get stuck and/or can be fragmented and/or cut. This condition prevents the tire from providing the desired performance and safety, and these conditions can be detected by means of manual controls. Another important condition is the usage of tires which are suitable for the season and which are also delimited by means of legal legislations. Usage of winter tire forms legal obligations for passenger, light commercial, commercial vehicles.
  • the tread depth standards can be limited by laws. For instance, in Turkey, the legal tread depth is 1 .6 mm. Users must change their tires before tread depth is decreased to lower than 1 .6 mm.
  • the tread depth which is in vehicle tires can be detected by means of RFID tags placed between the treads.
  • detection of whether the vehicle has tire which is suitable for the season or detection of abnormalities besides tread length is not possible by means of this method.
  • Placement of RFID between the treads for the tire producers is substantially difficult due to extruder, tire production and cooking processes.
  • Placement of an electronic sensor between treads, which are decreasing depending on abrasion, cannot be preferred due to road conditions, forces.
  • the present invention relates to a tire monitoring system, for eliminating the abovementioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide a system which provides observation of the condition of vehicle tires continuously and/or with desired periods.
  • Another object of the present invention is to provide a tire monitoring system where the remaining tread depth can be determined and whether the tire regularly wears in the lateral direction can be determined and moreover whether tire surface is covered by a foreign object can be determined and whether tire is used which is not suitable for the season can be determined.
  • the present invention is a tire monitoring system for detecting the abnormalities in land vehicle tires.
  • the subject matter tire monitoring system comprises an image sensor for capturing the image of the tire positioned at the vehicle body in a manner facing the tire, and one or more than one processor unit and/or micro-controller and/or computer unit associated with the image sensor in order to take the images captured by said image sensor and in order to detect whether the tire is compliant to predetermined criteria which exist in a memory unit.
  • tire can be continuously observed, and abnormalities like tread height abnormality, the remaining tread depth, foreign substances which adhere to the tire surface, layers, cuts, punctures, breakages can be detected.
  • seasonal compliancy control can be realized.
  • the subject matter tire monitoring system comprises a speed sensor associated with the processor unit and which generates signal related to the vehicle speed; a protection chamber which encircles said image sensor; an opening provided at said protection chamber and which provides facing of the sensor to the tire; a protection cover for closing said opening; a movement mechanism associated with said protection cover and configured to operate in at least one first position where the protection cover closes said opening selectively and to operate in at least one second position where the protection cover provides opening of the opening such that the image sensor at least partially senses the tire, the processor unit is configured to provide operating of the movement mechanism in the second position and to provide capturing image by the image sensor in case the processor unit detects that the vehicle does not exceed a predetermined threshold speed in accordance with the signal received from the speed sensor.
  • the cover is opened and image is captured when the vehicle stops or moves slowly, thereby, the image sensor is prevented from being damaged and from not being able to capture images by time.
  • said threshold speed is between 0-10 km/h. Whole of the tire can be displayed.
  • said threshold speed is 0 km/h.
  • a GPS module associated with the processor unit, is provided for detecting the position of the vehicle; the processor unit is configured to detect the season at the position, where the vehicle exists, in accordance with the position information received from the GPS module, to determine tire type in accordance with the images received from the image sensor and to generate a warning signal in case it is detected that the tire type is not compliant with the season at the position where the vehicle exists.
  • usage of vehicle tire which is not suitable for the season, is detected.
  • the system developed by means of this shall be operating for highway traffic safety. For instance, a fleet center can observe tire conditions and suitable tire usage of the vehicles, which exist in the fleet, and can provide guidance of technical servicing stuff to the vehicles in cases of abnormality.
  • a communication unit for providing communication of the processor unit with a server; the processor unit is configured to send said warning signal to the server.
  • the processor unit is configured to determine the remaining tread depth in accordance with the images captured from the image sensor and to generate a warning signal in case incompliancy is detected in the determined tread height with respect to the predetermined conditions.
  • a temperature sensor is provided which is associated with the processor unit; the processor unit is configured to select the season of the position where the vehicle exists by taking into account also the data received from the temperature sensor in the detection of the season at the position where the vehicle exists.
  • the processor unit comprises a user interface for providing submitting a tire condition, obtained from the images, to the user.
  • the processor unit is configured to generate condition information where the condition of predetermined parameters of the tire is described in accordance with predetermined criteria in the image captured from the image sensor.
  • said parameters is at least one of tread depth, type of foreign substance on the tire surface, amount of foreign substance on the tire surface, distribution of foreign substance on the tire.
  • At least one each image sensors are provided for each tire; the processor unit is configured to generate a warning signal in case it detects that the remaining tread depth difference of the two tires exceeds a predetermined threshold value.
  • the image sensor has capability to sense the depth, and laser can be integrated if required, and the depth can be understood in a calibrated manner through the tire plane where the laser falls.
  • the remaining tread depth difference between the two tires which exist at the same axle shaft of the vehicle is compared, and if the difference in between is greater than a specific threshold value, a warning signal can be sent.
  • a warning can be sent.
  • the present invention can be joined with autonomous vehicle/unmanned vehicle technologies and can be used in the form of predictive maintenance for these structures and in the form of pre-warning system.
  • the present invention is a tire monitoring system (10) which provides instantaneous observation of the vehicle (300) tires (310) and which provides sending warning to the user or to the central control systems in case of an abnormality.
  • the tire monitoring system (10) essentially comprises an image sensor (140) positioned in a manner facing at least one tire of the vehicle (300), and a control unit (100) which captures image from said image sensor (140).
  • the control unit (100) can detect tread pattern of the tire and the remaining tread depth in accordance with the images captured from the image sensor (140), and in case there is an abnormality, the control unit (100) can generate a warning signal and can send this warning signal to a server (200).
  • a server (200) a server
  • the conditions of tires of vehicles (300) in a fleet can be instantaneously monitored, and the tire need can be determined. After said detections, automatic tire suggestion can be made to the fleets in a compliant manner to the season conditions and vehicle types.
  • the image sensor (140) can be positioned such that the hood part of the vehicle (300) faces the tire. Thus, the image sensor (140) is positioned such that it shall be difficult to directly see the image sensor (140) from outside and that the image sensor (140) shall be less prone to factors like wind and water coming from outside.
  • the image sensor (140) can be a camera, a camera which captures 3 dimensional images, a camera set which captures stereo image, etc.
  • the image sensor (140) can also comprise a laser, which sends light strip to the tire, in order to provide capturing three-dimensional image.
  • At least one each image sensors (140) can be provided for each tire (310).
  • the image sensor (140) is provided in a protection chamber (150).
  • the protection chamber (150) has a body which shall encircle the image sensor (140).
  • the protection chamber (150) comprises an opening for providing sensing of the tire by the image sensor (140).
  • the protection chamber (150) also comprises a protection cover (152) provided in an openable/closeable form for closing said opening. Said cover is associated with a movement mechanism (153).
  • the movement mechanism (153) can operate in a first position where the protection cover (152) closes the opening and in a second position where the protection cover (152) opens the opening.
  • the movement mechanism (153) is controlled by the control unit (100).
  • the protection cover (152) can comprise sequentially arranged plates which extend from the opening (151 ) edges towards the opening (151 ) center, said plates are moved by the movement mechanism (153), and thereby the opening can be opened.
  • Said cover mechanism shows similarity with the structure which provides closing/opening of the front side of the lens of analog photographing machines.
  • the protection cover (152) can have a structure which closes/opens the opening (151 ) by means of sliding movement.
  • control unit (100) comprises a processor unit (110) and a memory unit (120) associated with said processor unit (110).
  • the memory unit (120) can comprise software which has functional modules formed by command lines executed by the processor unit (110) and the databases used by the processor unit (110) while executing this software.
  • the memory unit (120) can comprise any memory or memory combinations which can be read by a computer.
  • the control unit (100) can comprise a communication unit (130) for providing communicating of the processor unit (110) and the server (200). Said communication unit (130) can be configured to be connected to a network like Bluetooth network, internet and cellular network.
  • the processor unit (110) can determine the height and pattern of tire treads, the foreign substance type on the tire, the amount and distribution of foreign substance on the tire in accordance with the information received from the image sensor (140), and accordingly, a tire condition signal can be generated.
  • the processor unit (110) can be associated with a user interface (190). Said user interface (190) can be a vehicle (300) screen, user mobile terminal, etc.
  • the processor unit (110) can send the condition information to the server (200) by means of the communication unit (130).
  • the processor unit (110) can give warning signal in case the tread depth difference, which remains between the two tires, exceeds a predetermined threshold value.
  • the processor unit (110) can realize the tread depth difference, which remains between the two tires, also by detecting the distances of the tires (310) with respect to the camera from the images in a possible embodiment of the present invention.
  • Processes like detection of tire height and detection of the foreign substances on the tire can be realized by means of one of the image processing methods known in the art. By means of machine learning and classification algorithms, it can be detected that the tire is muddy or some regions of the tire have been worn.
  • the processor unit (110) is moreover associated with a speed sensor (160).
  • the speed sensor (160) detects the movement speed of the vehicle (300).
  • the processor unit (110) provides operating of the movement mechanism (153) and opening of the opening and capturing image by the image sensor (140), in case it detects that the vehicle (300) does not exceed a predetermined threshold speed.
  • the image sensor (140) is prevented from being damaged by environmental factors while the vehicle (300) is moving.
  • the mentioned threshold speed can be selected for instance at a value between 0 and 10. In a possible embodiment, the threshold speed can be 0.
  • the processor unit (110) is moreover associated with a GPS module (180).
  • the GPS module (180) determines the geographical position of the vehicle (300).
  • the processor unit (110) detects the season where the vehicle (300) exists in accordance with the time information and geographical position of the vehicle (300).
  • the processor unit (110) can provide this process from a database including the seasons which correspond to the position and time values recorded in the memory unit (120) or from a server (200) by connecting to internet by means of the communication unit (130).
  • the processor unit (110) can determine the tire type in accordance with the data received from the image sensor (140).
  • the tire type describes the compliancy of the tire with the season. Winter tire and summer tire types can be given as example for the tire types.
  • the processor unit (110) determines the geographical position of the vehicle (300) and whether the season in the geographical position is compliant with the determined tire type and generates a warning signal if incompliancy is detected.
  • the warning signal can be sent to the user interface (190) or to the server (200).
  • the warning signal can also exist in the tire condition information.
  • the tire monitoring system (10) can also comprise a temperature sensor (170).
  • the processor unit (110) can arrange the season information, which exists at the present position, in accordance with the information received from the temperature sensor (170). For instance, in case the weather temperature is above a predetermined level although it is winter in the region, the processor unit (110) can change the season instantaneously and can prevent production of the signal, which describes incompliancy, since the temperature conditions are suitable.
  • Instantaneous tire conditions of more than one vehicle (300) can be controlled by means of condition information collected in the server, and the drivers who use unsuitable tire can be warned.
  • the processor unit (110) can send the position information to the server (200), and in case there is a dangerous abnormality in the tire, the server (200) can guide technical service stuff to the position of the vehicle (300).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Traffic Control Systems (AREA)

Abstract

La présente invention concerne un système (10) de surveillance de pneus destiné à détecter des anomalies dans des pneus (310) de véhicules terrestres (300). En conséquence, le système (10) de surveillance de pneus selon l'invention est caractérisé en ce qu'il comporte un capteur (140) d'images destiné à capturer l'image du pneu positionné au niveau de la carrosserie du véhicule (300) de manière à faire face au pneu, et une unité (110) de processeur associée au capteur (140) d'images afin de prendre les images capturées par ledit capteur (140) d'images et de détecter si le pneu est conforme à des critères prédéterminés qui figurent dans une unité (120) de mémoire.
PCT/TR2021/051132 2020-11-23 2021-11-04 Système de surveillance de pneus WO2022108556A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2020/18814A TR202018814A2 (tr) 2020-11-23 2020-11-23 Lasti̇k denetleme si̇stemi̇
TR2020/18814 2020-11-23

Publications (1)

Publication Number Publication Date
WO2022108556A1 true WO2022108556A1 (fr) 2022-05-27

Family

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Application Number Title Priority Date Filing Date
PCT/TR2021/051132 WO2022108556A1 (fr) 2020-11-23 2021-11-04 Système de surveillance de pneus

Country Status (2)

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TR (1) TR202018814A2 (fr)
WO (1) WO2022108556A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3142939A1 (fr) * 2022-12-13 2024-06-14 Psa Automobiles Sa Dispositif et procédé de vérification de l’état d’un pneumatique de véhicule automobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003211926A (ja) * 2002-01-21 2003-07-30 Bridgestone Corp タイヤの温度測定方法
US20030214394A1 (en) * 2002-05-17 2003-11-20 Behrendsen Paul Alfred Method and apparatus for sensing tire performance and wear
FR2911712A1 (fr) * 2007-01-24 2008-07-25 Siemens Vdo Automotive Sas Procede et dispositif de localisation des roues d'un vehicule.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003211926A (ja) * 2002-01-21 2003-07-30 Bridgestone Corp タイヤの温度測定方法
US20030214394A1 (en) * 2002-05-17 2003-11-20 Behrendsen Paul Alfred Method and apparatus for sensing tire performance and wear
FR2911712A1 (fr) * 2007-01-24 2008-07-25 Siemens Vdo Automotive Sas Procede et dispositif de localisation des roues d'un vehicule.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3142939A1 (fr) * 2022-12-13 2024-06-14 Psa Automobiles Sa Dispositif et procédé de vérification de l’état d’un pneumatique de véhicule automobile

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Publication number Publication date
TR202018814A2 (tr) 2021-01-21

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