EP3962757A1 - Système de détection pour un pneumatique de véhicule et pneumatique de véhicule - Google Patents

Système de détection pour un pneumatique de véhicule et pneumatique de véhicule

Info

Publication number
EP3962757A1
EP3962757A1 EP20718192.6A EP20718192A EP3962757A1 EP 3962757 A1 EP3962757 A1 EP 3962757A1 EP 20718192 A EP20718192 A EP 20718192A EP 3962757 A1 EP3962757 A1 EP 3962757A1
Authority
EP
European Patent Office
Prior art keywords
sensor
vehicle tire
sensor system
designed
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20718192.6A
Other languages
German (de)
English (en)
Inventor
Hans-Jürgen Sauerwald
Mathias SAUERWALD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland 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 Continental Reifen Deutschland GmbH filed Critical Continental Reifen Deutschland GmbH
Publication of EP3962757A1 publication Critical patent/EP3962757A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B60C23/20—Devices for measuring or signalling tyre temperature only
    • 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 sensor system for a vehicle tire. It also relates to a vehicle tire, in particular a solid rubber tire, with such a sensor system.
  • Sensor element and a control unit assigned to the sensor element, for example a microcontroller.
  • connection is typically made using wires or metallic conductor tracks. However, these are exposed to strong deformation forces, especially in solid rubber tires, and can therefore tear under permanent stress. This is particularly critical when the sensor element is not to be arranged in the area of the rim and thus in the vicinity of the control unit, but rather further outside in the tire.
  • a sensor system for a vehicle tire with at least one sensor and at least one control unit is specified, the sensor is electrically connected to the control unit by means of at least one conductor track made of an electrically conductive elastomer.
  • An electrically conductive elastomer is used here and below as a
  • Understood elastomer which has an electrical resistivity of less than 1000 Qm or even less than 100 Qm.
  • Such elastomers are sometimes also referred to as “conductive rubber” and can, for example, by the
  • an electrically conductive elastomer takes over the electrical connection between the sensor and the control unit.
  • Control unit is sufficiently elastic to take part in deformations of the tire.
  • the electrical connection is therefore permanently stable.
  • the electrical conductivity of electrically conductive elastomer is sufficient to
  • the at least one sensor is designed as a temperature sensor.
  • a temperature sensor can in particular be arranged in an intermediate layer located in the center of the tire, in which the energy introduced by tire deformation is converted into heat.
  • the at least one sensor is designed as an abrasion sensor and has areas which form areas of a tread of a vehicle tire and are exposed to abrasion during operation.
  • the abrasion sensor can be designed as a resistive sensor and have a number of parallel-connected current paths that are in different
  • Distances to a tread of the vehicle tire can be arranged.
  • the abrasion sensor can also be designed as a capacitive sensor and have at least one first electrode made of an electrically conductive elastomer, at least one second electrode made of an electrically conductive elastomer and at least one dielectric layer arranged between the electrodes made of a further, electrically insulating elastomer, the Electrodes and the layer can be arranged perpendicular to a tread of the vehicle tire
  • the area of the electrodes is reduced with increasing wear of the vehicle tire, so that the capacitance of the capacitor formed from the electrodes and the electrical layer changes.
  • Abrasion sensor the abrasion of a solid rubber tire can be quantified in a particularly simple manner.
  • a vehicle tire with the described sensor system is specified, the vehicle tire being designed in particular as a solid rubber tire.
  • the vehicle tire can be a tire for an industrial truck or a similar work machine.
  • the "intelligent" vehicle tire equipped with the sensor system has the advantage that the sensor system allows precise observation of the condition of the vehicle tires, electrical connections are designed to be particularly robust at the same time and the vehicle tire with the sensor system is therefore particularly resilient and has a long service life.
  • the sensor of the sensor system can be arranged in a layer of the vehicle tire, depending on the type of sensor.
  • a temperature sensor can advantageously be arranged in an intermediate layer of the tire
  • an abrasion sensor can advantageously be arranged in the area of a tread of the vehicle tire.
  • the sensor system is arranged in particular in a bore in the vehicle tire.
  • a wheel system with the described vehicle tire which, in addition to the vehicle tire, also includes a rim.
  • the control unit of the sensor system is arranged on a rim of the wheel system.
  • FIG. 1 shows a section through a solid rubber tire with a sensor system according to an embodiment of the invention
  • Figure 2 shows a sensor designed as a temperature sensor according to a
  • Figure 3 shows a connector for making an electrical connection
  • FIG. 4 shows a longitudinal sectional view of a sensor designed as an abrasion sensor according to a first embodiment of the invention
  • Figure 5 shows a side view of the sensor according to Figure 4 and
  • FIG. 6 shows a sectional view of a sensor designed as an abrasion sensor
  • FIG. 1 shows a vehicle tire 1 designed as a solid rubber tire, which is arranged on a rim 5 of a wheel system.
  • the vehicle tire 1 has various layers of elastomer.
  • the elastomer layers form, in a known manner, a bottom layer 4 with steel reinforcements 6, an intermediate layer 3 and a running layer 2, each of which has different properties.
  • the intermediate layer 3 is designed to be relatively elastic in order to minimize the rolling resistance and thus to reduce the generation of heat.
  • the vehicle tire 1 has a sensor system 10 in a bore, not shown, with a first sensor 11 and a second sensor 12 and a control unit 13, which in the embodiment shown is designed as a microcontroller and is arranged in the area of the rim 5, for example in a heated pocket or is attached.
  • the sensor 11 is arranged in the running layer 2 and designed as an abrasion sensor.
  • a surface 27 of the sensor 11 forms a small area of a running surface 7 of the
  • Vehicle tire 1 and, like this, is exposed to abrasion during operation.
  • the sensor 11 is connected to the control unit 13 via electrical connections 14 made of electrically conductive elastomers.
  • the second sensor 12 is arranged in the intermediate layer 3 and designed as a temperature sensor. It also has a connection 14 made of an electrically conductive
  • FIG. 2 shows the sensor 12 designed as a temperature sensor. As can be seen in this illustration, the sensor 12 has two contact connections 18. It is also conceivable that the sensor 12 has more contact connections 18. In the present
  • Embodiment however, a sensor 12 was used, the signals of which can advantageously be tapped via its supply line, so that only two
  • connection 14 is made up of individual connectors 17, each connector 14 making contact with a contact terminal 18.
  • Figure 3 shows an alternative embodiment in which the connection has only a single connector 20, which consists of individual conductor tracks 21 made of electrically conductive
  • connection 14 does not have any metallic wires or conductor tracks, but rather consists entirely of electrically conductive elastomer and, if necessary, additionally (in particular as a sheathing) electrically insulating elastomer. It therefore forms a conductor track made of an electrically conductive elastomer. It is therefore designed to be at least as flexible as the layers of the vehicle tire surrounding it. This prevents electrical connections from breaking.
  • the electrically conductive elastomer connections 14 typically have
  • the sensor signals can thus be transmitted satisfactorily.
  • FIG. 4 shows an embodiment of the first sensor 11 which is designed as a resistive abrasion sensor.
  • the sensor 11 has two different elastomers, namely an insulator 23 and an electrical conductor 24.
  • the insulator 23 forms a layer that is interrupted in places between two layers of the electrical conductor 24. Each layer of the electrical conductor 24 is through one
  • connections 25 were made by making individual bores 26 in a sandwich structure of a layer 31 of the conductor 24, a layer of the insulator 23 and a layer 32 of the conductor 24 and connecting them to the conductor 24 were filled out.
  • the sandwich structure made of two different elastomers can be produced, for example, using a triplex extruder.
  • connections 25 form areas of current paths from a
  • Figure 6 shows an alternative embodiment of a sensor 11, which is also as
  • Abrasion sensor is designed, but as a capacitive abrasion sensor. In this
  • the senor 11 has a layer structure of three electrically conductive layers and two electrically insulating layers arranged in between, which can be produced in particular by means of an extrusion process.
  • Two outer electrically conductive layers form a first electrode 28, while the inner electrically conductive layer forms a second electrode 29 and the insulating material arranged between them forms a dielectric layer 30.
  • the sensor 11 thus forms a capacitor with an area which decreases with increasing wear of the vehicle tire 1 and therefore also of the sensor 11, with both the electrode area and the area of the dielectric layer 30 decreasing in the embodiment shown. This also reduces the capacitance of the sensor 11, which is proportional to the electrode area.
  • the capacity is determined using the
  • Control unit 13 for determining the mileage or the abrasion of the vehicle tire 1 is evaluated.
  • the electrodes 28, 29 and the dielectric 30 are arranged perpendicular to the tread 7 of the vehicle tire 1 in order to ensure that the capacitor area is reduced with increasing wear.
  • the vehicle tire 1 in Figure 1 has both a (resistive or capacitive)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

L'invention concerne un système de détection (10) pour un pneumatique de véhicule (1) pourvu d'au moins un capteur (11, 12) et d'au moins une unité de commande (13), le capteur (11, 12) étant relié électriquement à l'unité de commande (13) au moyen d'au moins un tracé conducteur constitué d'un élastomère électro-conducteur.
EP20718192.6A 2019-05-02 2020-03-26 Système de détection pour un pneumatique de véhicule et pneumatique de véhicule Withdrawn EP3962757A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019206265.2A DE102019206265A1 (de) 2019-05-02 2019-05-02 Sensorsystem für einen Fahrzeugreifen und Fahrzeugreifen
PCT/EP2020/058582 WO2020221524A1 (fr) 2019-05-02 2020-03-26 Système de détection pour un pneumatique de véhicule et pneumatique de véhicule

Publications (1)

Publication Number Publication Date
EP3962757A1 true EP3962757A1 (fr) 2022-03-09

Family

ID=70277335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20718192.6A Withdrawn EP3962757A1 (fr) 2019-05-02 2020-03-26 Système de détection pour un pneumatique de véhicule et pneumatique de véhicule

Country Status (5)

Country Link
US (1) US20220219493A1 (fr)
EP (1) EP3962757A1 (fr)
CN (1) CN113767018A (fr)
DE (1) DE102019206265A1 (fr)
WO (1) WO2020221524A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3120015B1 (fr) * 2021-02-25 2024-04-12 Michelin & Cie Méthode d’instrumentation d’un pneumatique pour la mesure de la température interne en roulage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4554208B2 (ja) * 2001-10-02 2010-09-29 ソシエテ ド テクノロジー ミシュラン タイヤの摩耗を連続的に測定する方法および装置
JP4316313B2 (ja) * 2003-07-09 2009-08-19 横浜ゴム株式会社 タイヤ摩耗検知方法と装置、及び空気入りタイヤ
US7775094B2 (en) * 2007-01-16 2010-08-17 Adam Awad Apparatus and method for measuring tire thickness
DE102016202069A1 (de) * 2016-02-11 2017-08-17 Continental Reifen Deutschland Gmbh Elektrisches Verbindungselement
DE102016214735A1 (de) * 2016-08-09 2018-02-15 Continental Reifen Deutschland Gmbh Fahrzeugreifen
DE102016221267A1 (de) 2016-10-28 2018-05-03 Continental Reifen Deutschland Gmbh Vollgummireifen und Verfahren zur Herstellung eines Vollgummireifens

Also Published As

Publication number Publication date
WO2020221524A1 (fr) 2020-11-05
US20220219493A1 (en) 2022-07-14
DE102019206265A1 (de) 2020-11-05
CN113767018A (zh) 2021-12-07

Similar Documents

Publication Publication Date Title
EP2288029B1 (fr) Agencement de capteur capacitif
DE10243095B4 (de) Wälzlager mit intergrierter Zustandsmessung
DE102008012841A1 (de) Luftreifen und Verfahren zur Herstellung von derartigen Luftreifen
EP3564015A1 (fr) Composant structural ainsi que système et procédé de détection de dommages
EP2848434B1 (fr) Pneus de véhicule
DE102013104114A1 (de) Fahrzeugluftreifen und Verfahren zur Herstellung eines Fahrzeugluftreifens
WO2020221524A1 (fr) Système de détection pour un pneumatique de véhicule et pneumatique de véhicule
DE2443493B2 (de) Elastisches Fahrzeugrad mit einem auf einer Felge des Fahrzeugrades befestigten Reifenkörper aus elastomerem Material mit darin eingebetteten Stromabnahmeeinrichtungen
WO2014139696A1 (fr) Composant électronique
EP3599113B1 (fr) Pneu ainsi que procédé de fabrication d'un pneu
EP3325286B1 (fr) Pneumatique de véhicule
EP3489043B1 (fr) Pneumatique de véhicule pourvu d'un dispositif de détection
DE102004055476B3 (de) Verfahren zum Herstellen eines elastisch verformbaren Hohlprofils und Vorrichtung zum Erkennen eines Hindernisses in dem Öffnungsbereich eines kraftbetätigten Schliesselements, die ein solches Hohlprofil aufweist
EP2452837B1 (fr) Pneu de véhicule utilitaire
EP2441867A1 (fr) Capteur d'extension et procédé de mesure d'une extension d'un textile
DE102019213190A1 (de) Fahrzeugreifen mit einem leitenden Verbindungselement und Kautschukmischungen zur Herstellung eines solchen Verbindungselementes
DE102016202069A1 (de) Elektrisches Verbindungselement
EP3100874B1 (fr) Pneumatique de véhicule utilitaire
WO2019105621A2 (fr) Produit flexible
EP3085553B1 (fr) Procede de fabrication de passages electroconducteurs dans une paroi laterale d'un pneumatique de vehicule et pneu ainsi obtenu
EP3204988B1 (fr) Procédé de surveillance d'un état d'une surface de contact d'un connecteur électrique
DE102007054543A1 (de) Textiles Flächengebilde mit bestrombaren Heizleitern und Heizvorrichtung aus einem solchen textilen Flächengebilde
DE69935044T2 (de) Lauffläche für reifen und reifen mit derselben
DE102018221380A1 (de) Gegenstand
DE102016015835B4 (de) Eingabeeinrichtung mit in Abhängigkeit einer kapazitiv gemessenen Betätigungskraft erfolgenden Funktionsauslösung oder Steuerung und Anpassung durch kapazitive Berührdetektion

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220621