WO2015019291A1 - Élément de mesure à disposer dans la bande de roulement d'un pneu - Google Patents

Élément de mesure à disposer dans la bande de roulement d'un pneu Download PDF

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Publication number
WO2015019291A1
WO2015019291A1 PCT/IB2014/063714 IB2014063714W WO2015019291A1 WO 2015019291 A1 WO2015019291 A1 WO 2015019291A1 IB 2014063714 W IB2014063714 W IB 2014063714W WO 2015019291 A1 WO2015019291 A1 WO 2015019291A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring element
measuring
tire
tread
sensor
Prior art date
Application number
PCT/IB2014/063714
Other languages
German (de)
English (en)
Inventor
Rainer Achterholt
Original Assignee
Intread Gmbh
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 Intread Gmbh filed Critical Intread Gmbh
Publication of WO2015019291A1 publication Critical patent/WO2015019291A1/fr

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Classifications

    • 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
    • B60C11/243—Tread wear sensors, e.g. electronic sensors
    • 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

Definitions

  • Measuring element for arrangement in a tread of a tire
  • the invention relates to a measuring element for determining the tread depth or Laufzanabriebs a tire, wherein the measuring element is to be arranged in the tire and at least one sensor comprising a measuring electronics for transmitting the data determined by the sensor.
  • the land vehicles such. B. Passenger cars, trucks and also
  • the single wheel usually includes a rim and a mounted thereon, usually filled with compressed air tires.
  • the wheels are stimulated to turn and / or braked so that the vehicles on the wheels over a
  • the surface of the tire that rolls over the vehicle ground is called the tread.
  • the tires are formed on the tread with a specially designed profile. Permanent use causes wear. This means that the tread depth decreases continuously during driving. This decrease is permissible until a critical value is reached at which driving safety is significantly impaired.
  • the profile depth is mechanically measurable, but due to the dimensions of profile depths of only a few millimeters high accuracy and at
  • DE 197 45 734 B4 discloses an abrasion sensor for detecting the tread depth of a tire.
  • the tread of the tire becomes an abrasion-dependent electrical or electromagnetic measuring element
  • the measuring element consists of a plurality of electrically conductive loops, which are cut one after the other at different depths. Since the measuring element and sensor circuit are embedded in the tire, a simple replacement in case of malfunction is not possible. In addition, the tires must be specially trained and retrofitting is not possible.
  • the object of the invention is to provide a measuring element which allows a reliable detection of tire wear, in particular in the area of the tread at any time.
  • the basic idea of the invention is to use as the measuring element a dowel-like element in the tread of a tire, so that it extends radially in the mounted state. Due to the mechanical property that each defined point on the tread of a tire reaches a moment during its full (360 degrees) rotation, at which a maximum surface pressure arises at the defined point, the measuring element makes this finding its own.
  • This surface pressure is transmitted to a suitable material, for example a piezoelectric element in the formation of a deformation.
  • a piezoelectric element is a component which utilizes the piezoelectric effect in order to carry out a mechanical movement either by applying an electrical voltage (piezoactuator, uses the so-called inverse piezoelectric effect) or to generate an electrical voltage when a mechanical force is applied.
  • the measuring element is designed as a cylindrical body, such that it is designed to be elongated.
  • the dimensions are conceivable with those of a commercially available dowel for receiving screws in the size M6 to M 1 2.
  • a preferred embodiment has two areas, namely a first area, which comprises a measuring electronics and a transmitting unit for transmitting the data, and a second area, which serves as a measuring sensor and with which
  • Measuring electronics is coupled.
  • the first region is preferably arranged in a metal or plastic housing in order to protect the measuring electronics from mechanical influences.
  • the second region in which the measuring sensor is arranged is embedded in a rubber-like material that is at least almost the same Abrasive properties as the tread has. The intention of this technical training is that by the abrasion of the tread and the second area in at least similar, preferably wears in the same way.
  • the second region with the measuring sensors has a plurality of piezo elements connected in parallel. These piezoelectric elements are arranged in the longitudinal extension of the measuring element and preferably cast in a rubber material. The individual piezoelectric elements are arranged like a ladder, starting from an end face of the measuring element towards the first area, which comprises the measuring electronics.
  • the measuring element When installed, the measuring element extends radially from the
  • the mode of operation of the measuring element is now such that the respective outermost piezoelectric element is used to measure the tread depth of the tread.
  • the outermost (pointing to the running surface) piezo element thus has the
  • the depth of the tread profile can be determined.
  • the generated voltage pulse which occurs every full revolution of the wheel in which the measuring element is arranged, is used by the measuring electronics.
  • the measuring electronics are designed in such a way that they are next to the
  • a transmission module is arranged inside the tire such that it transmits data transmitted wirelessly by the measuring element to a data representation unit, for example a dashboard in the vehicle or a tablet PC, Mobile device transmitted. It is irrelevant whether the vehicle is longer or constantly driving.
  • the measuring electronics comprises an energy storage element, so that data are transmitted from the measuring element even in the standing process. If the vehicle is stationary for a while, then data is no longer transmitted for lack of energy. However, just a few revolutions (1 -3) are sufficient until sufficient energy is available for detection and transmission.
  • the meter electronics also have the ability to be designed so that further physical parameters can be measured on the tire. As physical parameters, the temperature at the bonding layer to the carcass, tread load or road conditions can be measured.
  • a conical hole shape in the tread or tread depth can be provided for mounting supportive, so that a fixation of the measuring element before the
  • Vulcanization process is possible.
  • On the circumference elastic ring elements are arranged, which increases the cross-section at least in places, so that a holding of the measuring element can be obtained in the provided bore.
  • An alternative training provides to introduce the measuring element later. This is done in such a way that a blind hole is prepared in the tread.
  • the measuring element is provided with a sheath and is introduced together with this sheath into the bore.
  • the introduction into the bore is carried out until the end face of the first area closes with the surface of the tread.
  • the shell is then removed and an adhesive liquid runs out, so that a captive connection between the measuring element and the bore is formed.
  • Fig. 1 is a schematic representation of the arrangement and the application of the measuring element
  • Fig. 2 is a perspective view of the inventive
  • FIG. 3 shows a section through a tread of a tire before the introduction of the inventive measuring element according to FIG. 2;
  • Fig. 4 is a section through the tread of a tire with a
  • FIG. 5 shows a section through the measuring element according to FIG. 2 along a
  • FIG. 6 [A-B] is a schematic representation of different
  • a measuring system MS is shown, which is the application of the
  • the measuring element 1 is arranged in a tire R in the tread L thereof.
  • the arrangement of the measuring element 1 is such that the measuring element 1 extends into the depth of the tread L.
  • the Alignment takes place radially and in such a way that the one end face of the measuring element 1 terminates with the surface 0 of the tread L.
  • the measuring element 1 has a transmitting unit which transmits the data recorded by the measuring element 1. This transmission unit transmits the data to a dashboard arranged in the vehicle K or to any other one
  • Representation unit such as a tablet PC or - as shown in Fig. 1 - a mobile unit M.
  • the data can also be transmitted via satellite SA to a remote personal computer PC, for example, for monitoring reasons (via the mobile unit). There can then in addition to the ongoing monitoring of the physical data of the tires of different
  • the measuring element 1 is shown in a perspective view. It consists essentially of two areas 2, 3.
  • the first area 2 comprises the sensors which are provided for determining the current tread depth of the tire.
  • the second area 3 comprises the measuring electronics, which are provided to convert the electrical signals provided by the sensors and to transmit them to a transmitting unit (SE, shown in FIG. 1).
  • SE transmitting unit
  • the first region 2 consists essentially of a rubber-like housing.
  • the free end 4 terminates in each case with the surface 0 of the tread L, so that this end face 4 always - regardless of the wear or abrasion of the surface 0 of the tread L - concludes with the surface 0.
  • the length 5 of the first region 2 is thus a measure of the tread depth of the tire R.
  • ring elements 8 are provided on the circumference 7 of the region 2 (FIG. 3). These ring elements 8 are elastic and in terms of their outer diameter greater than the diameter of a hole. By pressing the measuring element 1 into a bore 6 in the direction of the arrow 9 (FIG. 3), the ring elements 8 become
  • FIG. 5 shows a section through the measuring element 1 according to FIG. 2 along a line V-V.
  • a measuring electronics 1 0 is provided in the further area 3 .
  • This measuring electronics 1 0 serves to convert the values provided by the sensors and transmit them to a transmitting unit.
  • This measuring electronics 1 0 serves to convert the values provided by the sensors and transmit them to a transmitting unit.
  • Measuring electronics 1 0 preferably powered by a power source, consisting of
  • Piezo elements 1 1 consists. These piezo elements 11 are ladder-like in the first region, i. arranged one above the other and in parallel. In the present example, five piezo elements are arranged one above the other.
  • Piezoelement 1 1 emits the largest current pulse, so that the tread depth can be determined.
  • the first region 2 is advantageously cast in a rubber-like material.
  • the further area 3, in which the measuring electronics 1 0 is arranged, is housed in a housing 1 2.
  • the housing 1 2 consists of either metal or plastic.
  • the housing 1 2 advantageously has a cavity 1 3, in which the measuring electronics 1 0 is fixed. For a fixation within a bore and thus a positional arrangement is on the circumference of the Housing 1 2 arranged a thread 1 5, which cooperates with the rubber-like material of the tread in the mounted.
  • a temperature sensor 1 4 is arranged on the side of the measuring element 1 assigned to the further area. This is intended to reduce the temperature in particular
  • Transition region of the tread to the carcass so to measure permanently in the critical bonding layer. This can already be done before replacement due to high
  • the measuring element 1 can be arranged in different ways. Two embodiments are shown by way of example in FIGS. 6A and 6B.
  • the measuring element 1 is introduced into a bore in the tread L.
  • This hole can be conical or cylindrical
  • the measuring element 1 surrounds a sleeve 1 6, which is supported on the front side of the housing 1 2 of the further area 3. There is the possibility that the measuring element 1 can be introduced into the bore 6. After placement of the measuring element 1, the sleeve 1 6 is removed and either additional adhesive and filler is introduced, or it runs automatically liquid, which fixes the measuring element 1 captive in the bore 6.
  • FIG. 6 [B] An alternative introduction of the measuring element 1 is shown in FIG. 6 [B]. Before the vulcanization process, the measuring element 1 from the side of the measuring element 1
  • Binding layer B introduced into the bore 6 and preferably fixed in the same manner as already described with respect to Fig. 6 [A].
  • the measuring element 1 surrounds a sleeve 1 6, which is supported on the front side of the housing 1 2 of the further area 3.
  • the Measuring element 1 can be introduced into the bore 6.
  • the sleeve 1 6 is removed and either additional adhesive and filler is introduced, or it runs automatically liquid, which fixes the measuring element 1 captive in the bore 6.
  • the inventive measuring element 1 is very compact, so that it could be retrofitted with conventionally known means. It is introduced comparable to a dowel in the tread of a tire in order to measure there at least the current tread depth wirelessly. In addition, the measuring element comes without power source that designed as a sensor
  • Piezo elements are simultaneously power generators.
  • Measuring element for arrangement in a tread of a tire

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne un élément de mesure servant à déterminer la profondeur des profils ou l'usure par frottement de la bande de roulement d'un pneu, l'élément de mesure étant destiné à être disposé dans le pneu, ainsi qu'au moins un capteur qui comporte un système électronique de mesure servant à envoyer les données déterminées par le capteur. Selon l'invention, l'élément de mesure (1) est divisé en deux zones, la première zone comprenant des capteurs sous forme d'éléments piézoélectriques noyés dans un matériau de type caoutchouc, les éléments piézoélectriques servant en même temps à mesurer la profondeur des profils et à fournir une source de tension pour alimenter le système électronique de mesure.
PCT/IB2014/063714 2013-08-06 2014-08-05 Élément de mesure à disposer dans la bande de roulement d'un pneu WO2015019291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013013072 2013-08-06
DE102013013072.7 2013-08-06

Publications (1)

Publication Number Publication Date
WO2015019291A1 true WO2015019291A1 (fr) 2015-02-12

Family

ID=51690411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/063714 WO2015019291A1 (fr) 2013-08-06 2014-08-05 Élément de mesure à disposer dans la bande de roulement d'un pneu

Country Status (1)

Country Link
WO (1) WO2015019291A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3225429A1 (fr) * 2016-03-28 2017-10-04 Dana Heavy Vehicle Systems Group, LLC Système de télémétrie d'état de pneu
DE102017116137A1 (de) * 2017-07-18 2019-01-24 Reifenhaus Bechtold GmbH Kontinuierliche Profiltiefenerkennung bei Fahrzeugreifen
CN111315595A (zh) * 2017-11-28 2020-06-19 横滨橡胶株式会社 充气轮胎、轮胎磨耗信息取得系统、及充气轮胎的磨耗信息取得方法
KR102124829B1 (ko) * 2020-02-10 2020-06-22 유성원 타이어 마모 감지 장치
JP2021506664A (ja) * 2017-12-18 2021-02-22 ノキアン レンカート オーイーユィ トレッドの摩耗を測定するように構成されるインサートを備えるタイヤ
KR20210115307A (ko) * 2020-03-12 2021-09-27 유성원 타이어 마모 감지 장치
KR20210115306A (ko) * 2020-03-12 2021-09-27 유성원 타이어 마모 감지 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954814A1 (de) * 1999-11-13 2001-05-31 Daimler Chrysler Ag Fahrzeugluftreifen mit einem Abnutzungsindikator
WO2001064460A1 (fr) * 2000-03-03 2001-09-07 Siemens Aktiengesellschaft Pneumatique dote d'un detecteur et procede permettant de determiner une grandeur d'usure d'un tel pneumatique
US20050057346A1 (en) * 2003-09-16 2005-03-17 Toyota Jidosha Kabushiki Kaisha Tire state quantity detecting apparatus and method
DE19745734B4 (de) 1997-10-16 2007-07-05 Bayerische Motoren Werke Ag Abriebsensor zur Erfassung der Profiltiefe eines Reifens von Kraftfahrzeugen
DE102009006458A1 (de) * 2009-01-28 2010-08-05 Continental Automotive Gmbh Vorrichtung und Verfahren zum Messen der Profiltiefe eines Kraftfahrzeugreifens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745734B4 (de) 1997-10-16 2007-07-05 Bayerische Motoren Werke Ag Abriebsensor zur Erfassung der Profiltiefe eines Reifens von Kraftfahrzeugen
DE19954814A1 (de) * 1999-11-13 2001-05-31 Daimler Chrysler Ag Fahrzeugluftreifen mit einem Abnutzungsindikator
WO2001064460A1 (fr) * 2000-03-03 2001-09-07 Siemens Aktiengesellschaft Pneumatique dote d'un detecteur et procede permettant de determiner une grandeur d'usure d'un tel pneumatique
US20050057346A1 (en) * 2003-09-16 2005-03-17 Toyota Jidosha Kabushiki Kaisha Tire state quantity detecting apparatus and method
DE102009006458A1 (de) * 2009-01-28 2010-08-05 Continental Automotive Gmbh Vorrichtung und Verfahren zum Messen der Profiltiefe eines Kraftfahrzeugreifens

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3225429A1 (fr) * 2016-03-28 2017-10-04 Dana Heavy Vehicle Systems Group, LLC Système de télémétrie d'état de pneu
US10424129B2 (en) 2016-03-28 2019-09-24 Dana Heavy Vehicle Systems Group, Llc Tire condition telematics system
DE102017116137A1 (de) * 2017-07-18 2019-01-24 Reifenhaus Bechtold GmbH Kontinuierliche Profiltiefenerkennung bei Fahrzeugreifen
DE102017116137B4 (de) 2017-07-18 2022-10-20 Reifenhaus Bechtold GmbH Kontinuierliche Profiltiefenerkennung bei Fahrzeugreifen
CN111315595A (zh) * 2017-11-28 2020-06-19 横滨橡胶株式会社 充气轮胎、轮胎磨耗信息取得系统、及充气轮胎的磨耗信息取得方法
US11014413B2 (en) 2017-12-18 2021-05-25 Nokian Renkaat Oyj Tire with an insert configured to measure wear of a tread
JP2021506664A (ja) * 2017-12-18 2021-02-22 ノキアン レンカート オーイーユィ トレッドの摩耗を測定するように構成されるインサートを備えるタイヤ
WO2021162464A1 (fr) * 2020-02-10 2021-08-19 유성원 Dispositif de détection d'usure de pneu
KR20210102008A (ko) * 2020-02-10 2021-08-19 유성원 타이어 마모 감지 장치
KR102292720B1 (ko) * 2020-02-10 2021-08-23 유성원 타이어 마모 감지 장치
KR102124829B1 (ko) * 2020-02-10 2020-06-22 유성원 타이어 마모 감지 장치
KR20210115307A (ko) * 2020-03-12 2021-09-27 유성원 타이어 마모 감지 장치
KR20210115306A (ko) * 2020-03-12 2021-09-27 유성원 타이어 마모 감지 장치
KR102379769B1 (ko) * 2020-03-12 2022-03-25 유성원 타이어 마모 감지 장치
KR102379770B1 (ko) * 2020-03-12 2022-03-28 유성원 타이어 마모 감지 장치

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