A pneumatic tire comprises a tread; a bead region, a sidewall; a bead core; a first apex; an apex-extension; a carcass; a chafer and a second apex. The second apex is positioned between a rim flange protector and the first apex or the extension. The carcass includes a first ply turned-up around the bead core to form a first turnup portion extending along the first apex and the extension and terminating radially inwardly from the radially outward end of the extension. The carcass may include a second ply turned-up, between the bead core and the first ply, around the bead core to form a second turnup portion, the second turnup portion extending along the axially outer side of the first apex. Alternatively, the carcass may include a second ply parting from the first ply at the extension and extending along the extension and the turnup portion of the first ply.
The present invention is directed to a non-pneumatic tire comprising a rubber component, such as a shearband, comprising at least one textile cord, wherein the textile cord comprises yarns, and wherein the majority of the yarns are fused together in the cord. Moreover, the yarns are chosen from one or more of aramid, polyamide, polyester, polyethylene terephthalate, polyethylene naphthalate, glass fiber and carbon fiber yarns.
The invention is directed to a non-pneumatic tire comprising a tread band, sidewalls having each a carcass ply, wherein each of the carcass plies extends only on one lateral side of the tire. Radially outer end portions of the carcass plies are attached to the tread band in parallel to the tread band and point essentially in opposite axially outer directions. The invention is also directed to a non-pneumatic tire comprising a tread band and first and second carcass plies, wherein each of these carcass plies is provided on only one lateral side of the tire and has two radially inner bead portions, a radially outer top portion attached to the tread band and two intermediate portions extending transversely to the tread band from the top portion to the respective bead portion. Furthermore, the present invention is directed to tire rim assemblies comprising such tires.
The present invention relates to pneumatic tires comprising a dual-layer tread made of a first layer comprising a first tread compound having a first tread property and a second layer comprising a second tread compound having a second tread property.
The present invention relates to a tire mold for manufacturing at least one pneumatic tire. The present invention further relates to a method of manufacturing a tire mold. The present invention further relates to a molding kit comprising the tire mold. The present invention further relates to a tire cured in a tire mold.
A tire component formed from a rubber composition comprises a majority weight percent of renewable materials. The rubber composition comprises, based on 100 parts per weight (phr) of elastomer: a blend of at least two rubber elastomers selected from a group consisting of: greater than 50 phr of at least one mass balanced polymer; at least one bio-derived plasticizer; and a bio-derived filler system comprising silica and carbon black. The carbon black filler is at least partially derived from a bio-based feedstock prior to its addition to the rubber composition. The resin and the silica are also derived from renewable materials.
A rubber composition suited to forming a tread for a winter tire includes, expressed as parts by weight per hundred parts of rubber (phr): 100 phr of an elastomer component including a polybutadiene rubber and a styrene butadiene rubber. A filler component includes at least 10 phr aluminum hydroxide, at least 70 phr silica, and 0-20 phr carbon black. The composition further includes an organosilane coupling agent, one or more processing aids, selected from liquid plasticizers, waxes, and resins and a cure package including a sulfur-based curing agent, an activator selected from inorganic activators, organic activators, and combinations, and a cure accelerator.
A rubber composition for an innerliner includes 100 phr of elastomers, including at least 60 phr of a butyl rubber, and 0 to 40 phr of diene-based rubber. The composition further includes 35 to 70 phr of a reinforcing filler and a curing system including zinc oxide and optionally a sulfur-based curing agent.
A tire may include a bead portion, a carcass, an apex, a belt package, and three gum layers. The carcass may be anchored around the bead core of the bead portion and may comprise a carcass plies portion and a turnup portion. The apex may be located between the carcass plies portion and the turnup portion. The belt package may be arranged between the carcass and a tread. The gum layers may include (a) a sidewall gum layer that extends from a first end located at the apex along the carcass plies to a second end; (b) a wraparound gum layer that wraps around an end of a first inner zigzag belt structure of the belt package; and (c) a belt gum layer that extends from a first end located between the belt package and the carcass plies along the carcass plies to a second end.
The present invention is directed to a tread and a tire having a tread, wherein over most of a circumferential length i) a maximum axial width in a top portion of a tread groove is at least 5% smaller than an axial width of the tread groove in its bottom portion, ii) the axial width of the tread groove in the bottom portion is at least 5% smaller than the maximum axial width of the tread groove in a radial intermediate portion of the tread groove, and iii) a maximum axial width of the tread groove in the intermediate portion is within a range of 15% to 50% of the total radial height of the tread groove.
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
The present invention is directed to a tire comprising a tread and a belt portion located radially below the tread, wherein the belt portion comprises a pair of working belts and a low angle belt. The low angle belt has reinforcement elements having an angle of less than 5° with a circumferential direction of the tire. In a first aspect, the low angle belt comprises a first layer and one or more further layers, wherein the first layer extends over at least 70% of the axial width of the axially largest working belt, and wherein each layer of the one or more further layers extends over at most 50% of the width of the axially largest working belt and is arranged radially below one of the shoulder grooves.
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
B60C 9/00 - Armatures des pneumatiques ou disposition des nappes dans ces derniers
Disclosed are various approaches to depositing an RFID tag or chip within a rubber substrate. A radio frequency identifier (RFID) chip encapsulated with an adhesive or adhesion promoter is attached to the rubber substrate. Then, a wire antenna is attached to the rubber substrate and inductively coupled to the RFID tag. The wire antenna can be encapsulated with an adhesive or adhesion promoter. The wire antenna can also be arranged longitudinally along the rubber substrate in a plurality of loops with at least one of the plurality of loops placed around the RFID tag.
G06K 19/077 - Détails de structure, p. ex. montage de circuits dans le support
B60C 23/04 - Dispositifs avertisseurs actionnés par la pression du pneumatique montés sur la roue ou le pneumatique
G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p. ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
H01Q 1/22 - SupportsMoyens de montage par association structurale avec d'autres équipements ou objets
H01Q 7/00 - Cadres ayant une distribution du courant sensiblement uniforme et un diagramme de rayonnement directif perpendiculaire au plan du cadre
Disclosed are various embodiments related to theft event detection and classification of theft of tires and/or wheels on a vehicle, such as a semi-tractor, semi-trailer. A theft event detection and classification system can include at least one computing device including a vehicle computing device comprising an accelerometer. The system can also include tire sensors, corresponding to tires on the vehicle, and in data communication with the vehicle computing device. The system can execute a theft monitoring application to detect vibration signals by the accelerometer and generate an event data record comprising the vibration signal information, tire sensor records comprising retrieved sensor information, and a vehicle environment record. The theft event detection and classification system can execute a theft detection application to analyze the event data record to classify the event and a notification of the possible theft event.
B60R 25/34 - Détection relative au vol ou autres événements relatifs aux systèmes antivol de l’état des composants du véhicule, p. ex. des fenêtres, des serrures des portes ou des appareils de sélection de changement de vitesse
Disclosed are various embodiments for sensing irregular wear of a tire tread. A tire is providing having an innerliner adjacent to a belt package, an undertread adjacent to the belt package opposite the innerliner, and a tread adjacent to the undertread opposite the belt package. The tread includes a plurality of tread elements and a conductive filament disposed laterally within the tread. The conductive filament includes a pair of ends extending radially through the undertread and the belt package to the innerliner and terminates into a corresponding pair of sensor contacts. A sensor adjacent to a radially inward side of the innerliner is also included in the tire, the sensor having a pair of electrical contacts in electrical contact with the sensor contacts.
A tire with printed sensors includes a pair of bead areas, a tread disposed radially outwardly of the bead areas, and a pair of sidewalls, including an inboard sidewall extending from a first bead area to the tread, and an outboard sidewall extending from a second bead area to the tread. A carcass extends toroidally between each of the bead areas radially inwardly of the tread, and an innerliner is formed on an inside surface of the carcass. A plurality of sensors are printed on the innerliner in a sidewall zone of the inboard sidewall or in a sidewall zone of the outboard sidewall, and are configured to measure deformation in the sidewall zone. The plurality of sensors are daisy-chained to provide a single deformation signal that is based on the measured deformations of the plurality of sensors.
The present disclosure relates to programming tire sensors mounted to a tire of a vehicle. An identification tag device (e.g., radio frequency identification (RFID) tag) stores tire information data and/or other data that is unique to a given tire. The identification tag device can be attached to or otherwise contained within a tire-integrated sensor mount configured to support a sensor. The identification tag device transmits tire identification data and/or other data stored by the identification tag device to a sensor when the sensor is attached to or otherwise supported by the tire-integrated sensor mount. The sensor can obtain the tire identification data associated with the tire on which the sensor is mounted, thereby allowing the sensor to associate collected sensor data (e.g., pressure, temperature, etc.) with the tire identification data that is unique to the tire.
B60C 23/04 - Dispositifs avertisseurs actionnés par la pression du pneumatique montés sur la roue ou le pneumatique
G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p. ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
G06K 19/077 - Détails de structure, p. ex. montage de circuits dans le support
A method for forming a composite apex, the method comprising the steps of: forming a coextruded strip of a first compound and a second compound, wherein the second compound is a compound different than the first compound, wherein the apex is formed from winding the coextruded strip while varying the ratio of the first compound to the second compound.
B29D 30/30 - Mise en place des couchesGuidage ou étirage des couches en cours d'application
B29C 48/49 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans la filière ou la matrice utilisant plusieurs extrudeuses pour alimenter une matrice ou une filière
B29D 30/62 - Application de bandes de chapes en caoutchouc, c.-à-d. application de bandes de rechapage non vulcanisées par extrusion ou injection de la chape sur la carcasse
Disclosed are various embodiments for sensing wear of a tire tread. A tire comprises an innerliner, a plurality of belts layered adjacent to the innerliner, a tread adjacent to the plurality of belts opposite the innerliner and a treadwear sensor positioned in the innerliner. The treadwear sensor comprises a base plate on an interior side of the innerliner and a tube extending from the base plate through the innerliner and the plurality of belts to a first wear depth in the tread. When the tread is worn to the first wear depth, an end of the tube is exposed through the tire.
LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (Luxembourg)
Inventeur(s)
Fehr, Duc Alexandre
Petry, Frank
Nava Velazco, Uriel Rodrigo
Abrégé
The invention provides a computer-implemented method and a system for automatically segmenting thermal images of a tire's footprint in order to identify components of the tire's tread pattern. The invention relies on a convolutional neural network model and on digital image pre-filtering. It is capable of accurately segmenting thermal footprint images of tires in either straight rolling or cornering conditions, which allows for the accurate extraction of temperature data for each identified tread pattern component.
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
A radial tire includes a pair of bead cores, a carcass having one or a plurality of carcass plies extending from one of the bead cores to the other of the bead cores in a toroidal form, a tread portion circumferentially encircling the toroidal form of the carcass, and a belt structure disposed radially between the carcass and the tread portion having a main belt layer, a first, unreinforced rubber layer disposed on a radially outer side of the main belt layer, a second, unreinforced rubber layer disposed within the main belt layer, and a protective belt layer disposed on a radially outer side of the first, unreinforced rubber layer and a radially inner side of the tread portion. A radially outermost layer of the main belt layer has a plurality of reinforcement cords each having a diameter, and the first and second, unreinforced rubber layers have first and second radial thicknesses, respectively, relative to such diameter.
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
A tire sidewall rubber composition comprises, based on parts by weight per 100 parts by weight rubber (phr): (A) a blend of polymers comprising at least a polyisoprene and polybutadiene; (B) a reinforcing filler; and (C) a cure package comprising sulfur and at least three accelerators including diphenyl guanidine and tetra benzyl thiuram disulfide and a sulfenamide.
A cobalt-free steel cord-rubber composite article includes, in sequence, a steel cord core, a steel cord coating, and a rubber layer. The steel cord coating contains from about 61 wt % to about 66 wt % copper, from about 3.5 wt % to about 6.5 wt % iron, and a balance of zinc and unavoidable impurities. The rubber layer is formed from a rubber compound including 100 phr of at least one elastomer; sulfur; about 20 phr to about 100 phr of at least one filler; about 2 phr to about 15 phr of zinc oxide; and about 0.5 phr to about 3.0 phr of at least one accelerator, containing no cobalt and no resin.
A tire comprising a tire tread having a tread region comprising a first and second rib, wherein the first and second ribs are separated by a groove; at least one tie-bar element disposed within the groove, and the tie-bar block element having opposed sidewalls separated by a radially extending groove, wherein the radially extending groove tapers from a first width to a second width, wherein the second width is wider than the first width.
B60C 11/13 - Sculptures des bandes de roulement caractérisées par la section transversale de la rainure, p. ex. pour étayer les parois, ou pour empêcher le coincement de pierres
B60C 11/04 - Sculptures des bandes de roulement dans lesquelles la surface en relief des sculptures est composée uniquement de nervures circonférentielles continues, p. ex. en zigzag
A coupling agent, a rubber composition, and a shaped article formed from the rubber composition, such as a pneumatic tire, are described. The coupling agent is represented by Formula I, and is capable of linking a substrate, such as a mineral oxide, carbon black or brass, to an unsaturated elastomer:
A coupling agent, a rubber composition, and a shaped article formed from the rubber composition, such as a pneumatic tire, are described. The coupling agent is represented by Formula I, and is capable of linking a substrate, such as a mineral oxide, carbon black or brass, to an unsaturated elastomer:
FG1-LG1-Sa-LG2-FG2 Formula I
where FG1 and FG2 each represent a functionalized arylene group, which can be the same or different; LG1 and LG2 each represent a linking group, which can be the same or different; and Sa represents a sequence of two or more connected sulfur atoms, where a is a number which is at least 2.
LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (Luxembourg)
Inventeur(s)
Shaplov, Alexander
Nikishkin, Nicolai
Weydert, Marc
Abrégé
The present invention is directed to a diene-norbornene copolymer comprising 1,4 diene repeat units and norbornene repeat units, wherein at least 95% of all 1,4 diene repeat units in the copolymer are cis 1,4 diene repeat units. Moreover, the invention is directed to a method of synthesizing such a copolymer and a rubber composition comprising the copolymer.
C08F 232/08 - Copolymères de composés cycliques ne contenant pas de radicaux aliphatiques non saturés dans une chaîne latérale et contenant une ou plusieurs liaisons doubles carbone-carbone dans un système carbocyclique contenant des cycles condensés
A rubber composition is disclosed comprising, based on 100 parts by weight of elastomer (phr): one or more elastomers selected from the group consisting of styrene-butadiene, polybutadiene, natural rubber, polyisoprene, and mixtures thereof; and a silylated material derived from a polyol or a polyol derivative. Also, a tire having a component comprising such a rubber composition is disclosed. Finally, a method of forming a sulfur-curable rubber composition for incorporation in a tire is disclosed, the method comprising: selecting a starting material comprising a polyol or a derivative of a polyol; condensing the starting material with a fatty acid to generate an esterified material; performing a silylation on the esterified material to generate a silylated material; and combining the silylated material with at least one elastomer in a rubber composition, the elastomer being selected from the group consisting of styrene-butadiene, polybutadiene, natural rubber, polyisoprene, and mixtures thereof.
A tire tread is formed from a rubber composition comprising a blend of elastomers comprising predominantly of polybutadiene; from about 100 phr to about 130 phr of silica; and from about 35 phr or more of a plasticizing hydrocarbon resin; wherein the rubber composition is partially or fully devoid of a liquid plasticizer.
A tire includes a pair of sidewalls extending from a respective bead area to a tread. The tread is formed with a plurality of tread elements and a radially outer surface, and a chamber is formed in one of the tread elements. A sensor unit is mounted to the tire and includes a pair of electrical contacts. The polymer plug includes a wire disposed in the chamber. The wire includes proximal ends and a distal end near a radially outer surface of the tread. A liquid polymer is injected into the chamber and cured. An electrical circuit is formed by each proximal end of the wire electrically contacts a respective one of the sensor unit electrical contacts. When the tread element wears down to the distal end of the wire, the wire and the circuit break. A notice is transmitted by the sensor unit when the circuit breaks.
A rubber composition suited for forming a tire tread includes 100 phr of elastomers, at least 30 phr of reinforcing fillers, such as carbon black and silica. The high surface area silica has a CTAB surface area of at least 220 m2/g. A ratio of the carbon black to the high surface area silica is at least 4:1. The composition further includes one or more processing aids and a sulfur-containing cure package.
A puncture resistant pneumatic tire may include a puncture resistant layer and a barrier layer. The puncture resistant layer may have a percent elongation of up to 300% and a tack value with the carcass of about 5 N to about 50 N at normal inflation pressure.
It has been found that a pneumatic tire comprising non-ground contacting tire components each independently formed from a rubber composition comprising greater than 89% sustainable material content can be manufactured. In one scenario the pneumatic tire is comprised of bio-renewable organic materials, wherein the bio-based content of the organic materials is verifiable, and wherein radiocarbon 14C dating according to ASTM method D6866 shows the level of bio-based content of the organic materials to be at least 40%. In a preferred embodiment the tire has an RFID tag affixed to the innerliner of the tire, wherein the RFID tag designates the level of bio-renewable organic materials in the tire.
In accordance with one aspect of the exemplary embodiment, a rubber composition includes at least 20 phr of a composite material, at least 3 phr of a conjugated diene elastomer, a cure activator, and a sulfur-based cure agent. The composite material includes a reinforcing carbon black dispersed in natural rubber. The composite material and conjugated diene elastomer together provide at least 90 phr of vulcanizable elastomers in the rubber composition. The rubber composition may further include a reinforcing filler other than carbon black. The reinforcing filler may include silica. The rubber composition may include at least 5 phr, or at least 8 phr of silica, or up to 30 phr, or up to 18 phr of silica.
A rubber composition suited to forming a tire ply includes 100 phr of elastomer, at least 30 phr of an intermediate carbon black, at least 5 phr silica, such as high surface area silica particles, at least 0.1 phr of a tear strength agent, a sulfur-based curing agent, and an accelerator for the curing agent. The elastomer incudes 60-100 phr of a conjugated diene elastomer. The intermediate carbon black has a statistical thickness surface area (STSA) of from 50 m2/g to 70 m2/g.
The present invention is directed to a tire having a tread, wherein the tread comprises a rubber composition comprising from 80 phr to 100 phr of one or more solution-polymerized styrene butadiene rubbers; from 80 phr to 200 phr of filler comprising at least 40 phr of carbon black; from 10 phr to 100 phr of one or more liquid diene-based polymers; and from 10 phr to 80 phr of a terpene resin.
The present disclosure is related to a curing ring that can be utilized in a tire mold to cure elastomer bands for NPTs or for tread band assemblies used in tire retreading. In one or more embodiments, the tire mold can comprise a base plate having a plurality of channels oriented along a radial direction. The tire mold can also comprise a plurality of inner segments configured to engage an inner radius of the elastomer band. Each inner segment includes an optional anchor for reception into a respective channel of the plurality of channels. Also, the plurality of inner segments can be configured to translate along the radial direction. Further, the tire mold can comprise a plurality of outer segments configured to engage an outer radius of the elastomer band.
The present disclosure regards Y-shaped spokes for non-pneumatic tires. Various embodiments described herein include a non-pneumatic tire that comprises a spoke extending along a radial direction between a shear band and a hub. The spoke comprising a first leg and a second leg extending from the shear band to an intersection point. The spoke further comprises a third leg extending from the hub to the intersection point. The first leg and the third leg are oriented along the same direction, which is oriented at an angle to an orientation of the second leg. Further, the first leg, the second leg, and the third leg meet at the intersection point to form a Y-shaped architecture.
A sealant composition suited to forming a sealant layer in a tire includes 100 phr elastomers, including at least 60 phr of an isobutylene-based elastomer component, and at least 5 phr of a conjugated diene-based elastomer component. The sealant composition further includes at least 5 phr of particulate filler, at least 0.5 phr of an organic peroxide, and optionally a colorant which provides the sealant with a non-black color.
The present invention relates to a pneumatic tire having a tread comprising a tread base layer and a tread cap. The tread cap comprises a first tread cap layer and a second tread cap layer of different polymeric compositions, the tread cap having a central cap zone ZC and two lateral cap zones ZL the lateral cap zones ZL being located axially adjacent to the central cap zone ZC and on axially opposite sides of the central cap zone ZC.
A tire may include: a tread cap; a carcass that comprises a radially outermost ply; a belt structure interposed between the carcass and the tread, the belt structure comprising a radially innermost belt; a pair of sidewall portions, wherein radially outermost portions of each sidewall overlie lateral end portions of the tread cap; a pair of bead regions, wherein the radially innermost belt wraps around the bead regions; a pair wraparound gum layers, wherein each wraparound gum layer wraps around a lateral end portion of the radially innermost belt; and a pair of sidewall gum layers that each extend along an outer surface of the radially outermost ply, wherein a first end of each sidewall gum layer is between the radially outermost ply and the lateral end portion of the radially innermost belt and a second end of each sidewall gum layer is at the bead region.
B60C 9/18 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
B60C 13/00 - Flancs du pneumatiqueProtection, décoration, marquage ou opérations similaires concernant ces derniers
The invention is directed to a vulcanizable rubber composition comprising, based on parts by weight per 100 parts by weight elastomer (phr): 100 phr of at least one diene-based elastomer; and from 1 to 100 phr of a carbon dioxide-generated carbon reinforcement produce by a method comprising: mixing a first gas stream containing carbon dioxide and a second gas stream containing a gaseous reducing agent to form a reaction gas mixture; supplying the reaction gas mixture to a reaction zone; reacting the carbon dioxide with the gaseous reducing agent in the reaction zone in the presence of an iron-containing catalyst to form water and the solid carbon product; and separating at least a portion of the water formed in the reaction zone from the reaction gas mixture during the reaction of the carbon dioxide with the gaseous reducing agent.
A rubber composition suited for forming a truck tire tread includes 100 phr of elastomers, including a natural rubber and a styrene-butadiene rubber. A ratio by weight of natural rubber to styrene-butadiene rubber is at least 50:50. The composition further includes at least 45 phr of reinforcing fillers, including carbon black and a high surface area silica. The high surface area silica has a CTAB surface area of at least 220 m2/g. A ratio of the carbon black to the high surface area silica is at least 4:1. The composition further includes one or more processing aids and a sulfur-containing cure package.
A method and apparatus for forming an apex or an apex in combination with a bead, the method comprising the steps of: winding a strip of rubber onto a rotatable platen to form an apex, wherein the rotatable platen may further include a radially expandable bead chuck for supporting a bead. The rotatable platen may optionally include a nonstick coating such as titanium nitride and optionally include one or more radially oriented bars. The optional one or more radially oriented bars may be movable into a first position flush with the outer surface of the platen, and movable into a second position that preferably is nonflush and protrudes from the outer surface of the platen. The rotatable platen is further optionally retractable from the bead chuck to facilitate removal of the apex from the apparatus.
In one aspect, the invention is directed to a method of providing an air barrier layer to a tire comprising at least the following steps: providing a tire comprising a tire cavity and an inner surface facing the tire cavity, providing a tubular film with at least one open end, and molding at least a portion of the tubular film to form an air barrier layer adapted to the inner surface of the tire. In another aspect, a cured tire is provided which comprises a tire cavity and an inner surface facing the tire cavity, and a tubular film of molten polymer is extruded. Said film is inserted into the tire cavity of the cured tire and expanded in the tire cavity to form an air barrier layer adapted to an inner surface of the tire.
The invention provides a pneumatic tire having a tire tread with a ground engaging outer surface. The tread further has a first or central tread zone located on the central or crown portion of the tread and formed of a first rubber compound. Additionally, the tread has a second or shoulder tread zone located axially outward of the first or central tread zone on each lateral end of the tread. The second or shoulder tread zone is formed of a second rubber compound. In one example, the first rubber compound has a G′ (at 50% strain) in the range of 1.6 to 1.8 MPa. In another example, the second rubber compound has a G′ (at 100% strain) in the range of 800 to 830 KPa.
A vulcanizable rubber composition comprises an interpenetrating or ionic network (IPN)-promoting resin. The resin comprises side chain functional groups along the resin backbone, which, in the presence of an additive material, form the connections that make up the IPN. In one embodiment, such material is ZnO. A method for forming the rubber composition comprises, in a productive step, mixing the product of the non-productive step, the zinc oxide, and a resin derived from maleic anhydride. The zinc oxide and the resin are simultaneously added to the composition during the productive mixing stage. The rubber composition can be cured and incorporated in a tire component, such as, a tread.
A tire is molded in a mold having elements movable to bring the mold into an open or into a closed position. The mold includes first and second sidewall mold plates and tread mold segments capable of forming a mold cavity. The segments are radially. The process comprises: bringing the mold from an open position into a first intermediate position wherein the segments remain separated radially from the tire by a radial clearance; creating an axial clearance between the tire and the first or second sidewall mold plate so as to bring the mold into a second intermediate position; drawing a vacuum on the mold cavity while the mold is in the second position; bringing the mold from the second position into the first position by axially moving the first or second sidewall mold plate; and moving the segments radially inwardly and bringing the mold into the closed position.
LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (Luxembourg)
Inventeur(s)
Weydert, Marc
Nikishkin, Nicolai
Shaplov, Alexander
Abrégé
The present invention is directed to a synthetic polyisoprene which comprises isoprene repeat units comprising 1,4 isoprene repeat units and 3,4 isoprene repeat units. At least 5% of all isoprene repeat units of the synthetic polyisoprene are 3,4 isoprene repeat units and at least 96% of all 1,4 isoprene repeat units of the synthetic polyisoprene are cis 1,4 isoprene units. Moreover, the invention is directed to a method of synthesizing such a polyisoprene and a rubber composition comprising the synthetic polyisoprene.
C08L 9/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures à diènes conjugués
C08F 4/60 - MétauxHydrures métalliquesComposés organiques de métalLeur utilisation comme précurseurs de catalyseurs choisis parmi les métaux légers, le zinc, le cadmium, le mercure, le cuivre, l'argent, l'or, le bore, le gallium, l'indium, le thallium, les terres rares ou les actinides en mélange avec des métaux réfractaires, des métaux du groupe du fer, des métaux du groupe du platine, du manganèse, technétium, rhénium ou leurs composés
A rubber composition suited for forming a truck tire tread includes 100 phr of elastomers, including 100 phr of elastomers, including at least 50 phr natural rubber, at least 10 phr of butadiene rubber and at least 10 phr styrene-butadiene rubber. The rubber composition further includes at least 45 phr of reinforcing fillers, including carbon black and a high surface area silica. A ratio of the carbon black to the high surface area silica is at least 4:1. The high surface area silica has a CTAB surface area of at least 220 m2/g. The rubber composition further includes one or more processing aids and a sulfur-containing cure package including a vulcanizing agent and an ultra-accelerator.
A pneumatic tire comprising non-ground contacting tire components each independently formed from a rubber composition comprising greater than 89% sustainable material content.
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
35 - Publicité; Affaires commerciales
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Vehicles; apparatus for locomotion by land or water; tyres; pneumatic tyres; motorcycle tyres; land vehicle tyres; automobile tyres; truck tyres; farm tyres; inner tubes for tyres; vehicle tracks; treads for tyres; pre-cured treads for tyres; treads for retreading tyres; retreading materials for tyres; rubber tyre repair materials; tyre tube repair materials; wheels; wheel rims; hubs; hub caps; vehicle flaps; tyre and tube repair materials and kits; non skid devices for vehicles; brakes; vehicle hoses; balance weights for vehicle wheels; drive belts for land vehicles; vehicle tyre inflation apparatus; tyre equipment; shock absorbers; parts for vehicles made substantially of rubber; parts and fittings and accessories for all the aforesaid goods. Advertising; business management; business administration; office functions; advertising and promoting tyres, inner tubes for tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and motor vehicle parts and fittings; advertising and promoting tyres, inner tubes for tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and motor vehicle parts and fittings using electronic communications networks, the Internet, extranet, Intranet and LANs; procurement services which assist third parties to obtain tyres, inner tubes for tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and motor vehicle parts and fittings; procurement services provided electronically which assist third parties to obtain tyres, inner tubes for tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and motor vehicle parts and fittings; retailing and wholesaling services relating to tyres, inner tubes for tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and motor vehicle parts and fittings; the bringing together, for the benefit of others, of a variety of goods (excluding the transport thereof), namely inner tubes for tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and/or motor vehicle parts and fittings provided by retail stores, wholesale outlets, through web sites or television shopping programs; business consultancy and advice relating to tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps, tyre and tube repair materials and motor vehicle parts and fittings; retail tyre store services; retail motor vehicles store services; online retail store services featuring motor vehicles tyres; information provided on the Internet relating to the aforesaid; consultation and information relating to the aforesaid services; providing the aforesaid services using the Internet and other electronic communications networks; tyre related business management services, business management, business administration, advertising, office functions, or commercial or industrial management assistance; commercial or industrial management assistance related to tyres, demonstration of goods, sales promotion, procurement services for others related to tyres. Building construction; vehicle maintenance and repair services; tyre repair services; retreading of tyres; fitting of tyres; consultancy, advice and provision of information relating to repair, structure, retreading, composition, maintenance, fitting and installation of tyres, vehicle tracks, treads for vehicles, treads for retreading tyres, wheels, hubs, hub caps; consultancy, advice and provision of information relating to the repair and retreading of tyres and tubes using tyre and tube repair materials; providing the aforesaid services using an interactive database, the Internet and electronic communications networks; consultation, information and advisory services concerning or relating to the aforesaid services; information supplied on the Internet or other electronic communications networks relating to the aforesaid services; tire-related technical retreading services, repair services, installation services, maintenance services, technical assistance; machinery installation, motor vehicle maintenance, motor vehicle repair; vehicle service stations; vulcanization of tyres; tyre-related commercial retreading services.
73.
SYSTEM FOR REAL-TIME DETERMINATION OF CALIBRATION OF AN INERTIAL MEASUREMENT UNIT
A system for real-time determination of calibration of an inertial measurement unit includes an inertial measurement unit and a processor in electronic communication with the inertial measurement unit. A road mapping module receives a vehicle latitude and a vehicle longitude, and determines a virtual heading angle of a vehicle. A virtual acceleration module receives the virtual heading angle of the vehicle, and a measured vehicle speed and heading angle, and estimates a virtual lateral acceleration and a virtual longitudinal acceleration. A correlation module receives the virtual lateral acceleration, the virtual longitudinal acceleration, a calibrated measured lateral acceleration, and a calibrated measured longitudinal acceleration. The correlation module determines a correlation between the virtual lateral acceleration and the calibrated measured lateral acceleration, and between the virtual longitudinal acceleration and the calibrated measured longitudinal acceleration. A notice is generated by the correlation module indicating a result of the correlation.
The invention provides a method and system for automatically detecting a swap of tires on a vehicle using RSSI levels obtained from tires equipped with transmitters. The obtained RSSI level distributions are used to artificially generate a set of training records, allowing for robust training of a machine learning algorithm. The machine learning algorithm is thereby enabled to provide efficient detection of tire swaps, and to generate a corresponding output signal.
A system for estimating the remaining mileage on a tire that supports vehicle includes a processor in electronic communication with an electronic control system of the vehicle. A calibration module determines a wear rate of the tire, and the wear rate of the tire is communicated to the processor. A severity assessment module is in electronic communication with the processor, receives real-time inputs, and generates a real-time driving severity number. A mileage estimation module is in electronic communication with the processor and determines a current wear state of the tire. The mileage estimation module generates an estimate of remaining mileage on the tire from the wear rate of the tire, the real-time driving severity number, and the current wear state of the tire.
A wheel assembly having a wheel rotation axis; a rim with an outer surface around the wheel rotation axis; wherein the outer surface comprising suction ports; two tires mounted on the outer surface of the rim; a particle collector adapted to trap particles entering said particle collector; a particle suction system with a bladed suction structure configured for generating a suction air flow in the rim upon rotation of said bladed suction structure about the wheel rotation axis; an air passage connecting the suction ports to the bladed suction structure via the particle collector in order to suck particles through the suction ports by means of the suction air flow generated by the bladed suction structure.
Aspects of tire sensor auto-location are described. Timestamped tire acceleration values are received for a set of tire sensor devices. Each tire sensor device provides a tire-specific subset of the timestamped tire acceleration values. Vehicle configuration parameters are identified to define a number of rear axles and a number of tires or wheels on each side of each axle. The vehicle configuration parameters and the timestamped tire acceleration values are processed to identify and assign an axle position and a vehicle side position for each tire sensor device of the set of tire sensor devices.
B60C 23/04 - Dispositifs avertisseurs actionnés par la pression du pneumatique montés sur la roue ou le pneumatique
G07C 5/04 - Enregistrement ou indication du temps de circulation, de fonctionnement, d'arrêt ou d'attente uniquement utilisant des moyens de comptage ou compteurs à horloge
G07C 5/08 - Enregistrement ou indication de données de marche autres que le temps de circulation, de fonctionnement, d'arrêt ou d'attente, avec ou sans enregistrement des temps de circulation, de fonctionnement, d'arrêt ou d'attente
78.
TIRE COMPRISING A PATTERN PROVIDING A HIGH CONTRAST
An aspect of the present invention relates to a tire comprising a sidewall, the sidewall having a surface comprising a surface portion including a hexagonal textured base pattern repeated over the surface portion so as to form a periodic textured pattern providing a high contrast to the surface portion. The hexagonal textured base pattern comprises protrusions and recesses, the protrusions and the recesses of the repeated textured base pattern cooperating to form respective lineal features extending over at least two of the repeated hexagonal textured base patterns.
Information from sensors on first and second tires positioned adjacent to each other on a dual wheel hub is obtained and stored in a memory. Also, information about the operation of a vehicle is stored in the memory, where the first and second tires are located on the vehicle. A determination is made as to whether a tire radius difference exists between a first radius of the first tire and a second radius of the second tire based on the temperature values and other parameters. An indication is encoded for display that shows that a tire radius mismatch exists between the first and second tires.
G07C 5/08 - Enregistrement ou indication de données de marche autres que le temps de circulation, de fonctionnement, d'arrêt ou d'attente, avec ou sans enregistrement des temps de circulation, de fonctionnement, d'arrêt ou d'attente
80.
NON-DESTRUCTIVE INSPECTION OF TIRES USING RADAR TOMOGRAPHY
Disclosed are examples related to non-destructive examination of tires using radar tomography. A radar signal can be used to illuminate a portion of a tire. Reflected radar signals can be received and used to generate a 3D image of at least the portion of the tire. The radar signals can illuminate a tread of the tire, an innerliner of the tire, and/or one or both sidewalls of the tire. The 3D image can include structural information of the tire that can be used to identify defects or damage in the tire. The examination can be conducted on new tires during fabrication, on existing tires during operation, and/or on used tires during refurbishment.
G01S 13/89 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la cartographie ou la représentation
G01S 7/41 - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe utilisant l'analyse du signal d'écho pour la caractérisation de la cibleSignature de cibleSurface équivalente de cible
G01S 13/931 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour prévenir les collisions de véhicules terrestres
The invention provides a hydroplaning detection method and system. Hydroplaning of a tire is detected based on radial acceleration data of a tire. The radial acceleration data is obtained by using a tire-mounted sensor unit. The lightweight implementation of the method and system allows for quick and robust detection of hydroplaning at an early stage, thereby improving the overall security of a vehicle equipped with the system.
B60R 16/023 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour la transmission de signaux entre des parties ou des sous-systèmes du véhicule
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
82.
SYSTEM FOR ESTIMATION OF TIRE TREAD DEPTH EMPLOYING WHEEL SPEED
A system for estimation of a depth of a tread of a tire supporting a vehicle includes a processor in electronic communication with an electronic control system of the vehicle. A wheel speed signal processing module is in electronic communication with the processor, receives measured wheel speed signals, and generates processed wheel speed signals from the measured wheel speed signals. A Fast Fourier Transform computation module receives the processed wheel speed signals and generates a Fast Fourier Transform curve. A summation module selects a predefined range of the Fast Fourier Transform curve, generates a reference curve from the predefined range of the Fast Fourier Transform curve, and determines a sum of residuals between a real-time Fast Fourier Transform curve and the reference curve. A regression model determines an estimate of tire tread depth from the sum of residuals.
An auto-location system includes a first tire sensor unit that measures a footprint length of a first tire. A second tire sensor unit measures a footprint length of a second tire. A vehicle status determination module receives the measured footprint lengths and determines when the vehicle is in a static or cruising state. A mean calculation module receives the measured footprint lengths when the vehicle is in a static or cruising state, and determines a first mean footprint length corresponding to the first sensor unit and a second mean footprint length corresponding to the second sensor unit. A comparison module receives the mean footprint lengths and determines a longest and a shortest of the mean footprint lengths. A position determination module generates a position determination of the first sensor unit and the second sensor unit based on the longest and the shortest of the mean footprint lengths.
Aspects of tire sensor auto-location are described. Tire temperature values are received for a set of tire sensor devices. Each tire sensor device provides a tire-specific subset of the tire temperature values. A vehicle configuration indicates that the vehicle has a dual tire setup. The tire temperature values are processed to identify and assign a “dual tire” position indicating an inner position or an outer position for each tire sensor device.
B60C 23/20 - Dispositifs pour mesurer ou signaler la température des pneumatiques
B60C 23/00 - Dispositifs pour mesurer, signaler, commander ou distribuer la pression ou la température des pneumatiques, spécialement adaptés pour être montés sur des véhiculesAgencement sur les véhicules des dispositifs de gonflage des pneumatiques, p. ex. des pompes ou des réservoirsAménagements pour refroidir les pneumatiques
Disclosed are various embodiments for monitoring tire sensors. An intermediate data transfer apparatus can communicate with tire pressure monitoring (TPM) sensors of tires within a predefined distance of the apparatus to retrieve sensor information. The intermediate data transfer apparatus can generate sensor data records including the retrieved sensor information can be generated and stored on a remote computing device.
G07C 5/00 - Enregistrement ou indication du fonctionnement de véhicules
B60C 23/04 - Dispositifs avertisseurs actionnés par la pression du pneumatique montés sur la roue ou le pneumatique
G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
G07C 5/08 - Enregistrement ou indication de données de marche autres que le temps de circulation, de fonctionnement, d'arrêt ou d'attente, avec ou sans enregistrement des temps de circulation, de fonctionnement, d'arrêt ou d'attente
Disclosed are examples for detecting a displacement of a sensor within a tire. A baseline signal strength is compared to a measured signal strength. When a calculated comparison value (e.g., delta standard deviation) meets or exceeds a threshold value, the sensor is determined to be displaced from the expected location in the tire. When a sensor is determined to be displaced or otherwise loose from the expected location within the tire, an alert can be generated to provide notice to the vehicle driver or other entity of the issue so that the issue can then be remedied.
A two-piece tire of the present disclosure may include a tread belt and a body capable of being connected by a plurality of locking mechanisms. The locking mechanisms may include a protrusion capable of extending into a lockable cavity via an opening defined by a lip that protrudes into the lockable cavity. For an individual locking mechanism, the protrusion may be integral with the tread belt or the body, and the lockable cavity integral to the other.
An inner mold mechanism for molding an annular structure according to an aspect of the invention comprises first inner mold segments and second inner mold segments, the first and second inner mold segments alternating with each other about a mold axis; a first axially movable actuator, the first actuator being mechanically connected to the first inner mold segments so as to move the first inner mold segments radially when the first actuator is moved axially; a second axially movable actuator, the second actuator being mechanically connected to the second inner mold segments so as to move the second inner mold segments radially when the first actuator is moved axially.
Disclosed are various embodiments related to detecting tire theft activity. In one non-limiting example, a vehicle trailer system can include a computing device and a tire sensor. The computing device can be configured to be attached to a semi-trailer and the computing device can include an accelerometer. The tire sensor can be attached to a wheel of the trailer and in data communication with the computing device. The computing device can be configured to at least detect a change in height for a portion of the trailer based at least in part on a measurement from the accelerometer. A pressure loss event can be detected based at least in part on a plurality of pressure measurements meeting a rate loss threshold. A vibration measurement can be identified from the accelerometer. An indication of a theft event can be transmitted to a remote computing device.
A tire rolling resistance estimation system estimates a real-time rolling resistance coefficient of a tire, and includes a tire sensor unit that measures a tire inflation pressure and a tire temperature. A processor is in electronic communication with the tire sensor unit. A steady state coefficient determination module in communication with the processor determines a steady state rolling resistance coefficient of the tire. A steady state tire temperature module in communication with the processor receives the steady state rolling resistance coefficient of the tire and estimates a steady state tire temperature of the tire. A real-time rolling resistance coefficient module in communication with the processor receives the steady state tire temperature of the tire and estimates a real-time rolling resistance coefficient of the tire from the steady state rolling resistance coefficient and a difference between the steady state tire temperature and a current tire temperature from the tire sensor unit.
A pretreated silica material includes silica particles, an organosilane coupling agent bonded to the silica particles, and polyethylene glycol contacting the silica particles. The pretreated silica material may be used in a rubber composition which also includes one or more vulcanizable elastomers and a curing agent. A tire tread or other part of a tire may be formed from the rubber composition.
A pneumatic tire may include: a carcass; a belt reinforcing structure comprising a plurality of belt layers that include at least one spiral belt layer and at least one zigzag belt layer; and a tread comprising two or more main grooves extending circumferentially continuously around the pneumatic tire and defining a plurality of ribs that include two axially outermost ribs. At 10% to 100% of rated pressure and no load, each of the two axially outermost ribs may be raised (e.g., by a gap of 1 mm to 7 mm) in relation to a respective next nearest rib located axially inward of the respective axially outermost rib.
B60C 11/04 - Sculptures des bandes de roulement dans lesquelles la surface en relief des sculptures est composée uniquement de nervures circonférentielles continues, p. ex. en zigzag
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
The invention provides a tire inflation pressure method and system. A tire inflation pressure adjustment signal is generated in order to maintain the centerline length of the tire's footprint within a range that allows the good performance of the tire. In embodiments of the invention, a linear relationship between tire inflation pressure, footprint centerline length and vehicle load are exploited to allow for an efficient implementation.
Disclosed are various embodiments of permanent active sensors in a tire achieved by partially embedding a sensor component in a green tire and adding a removable power source after the tire is cured. The printed circuit board can be encapsulated in the rubber of the tire with a power source housing connected to the electronics through the rubber. In another aspect, the printed circuit board can be directly connected to the power source housing. The sensor interlocks with the rubber of the tire. Various structural features of the sensor, such as a flange or channels for the rubber, can be used to secure the sensor in the rubber of the tire.
An auto-location system locates a position of a tire. A tire sensor unit is mounted on the tire and measures a length of a footprint of the tire, and electronic memory capacity stores identification information for the tire sensor unit. A vehicle sensor unit is mounted on the vehicle and measures a lateral acceleration and a longitudinal acceleration. A processor is in electronic communication with the tire sensor unit and the vehicle sensor unit, and receives the measured footprint length, the identification information, the lateral acceleration, and the longitudinal acceleration. A virtual footprint length estimator employs the lateral acceleration and the longitudinal acceleration to estimate a virtual footprint length of the tire. A correlation module receives the virtual footprint length and the measured footprint length to generate correlation values. A decision arbitrator applies a set of decision rules to the correlation values to generate a wheel position indication.
A machine vision system is directed toward a tire building drum in a tire building machine. The machine vision system produces a three dimensional image of a green rubber tread applied to the tire building drum. A center of the green rubber tread is identified in the three dimensional image by performing at least one convolution with at least one profile trace of the green rubber tread and a predefined tread profile. A difference is identified between the center of the green rubber tread and a center of the tire building drum. The difference is used as a tread position feedback error to position an application of a next green rubber tread onto the tire building drum from a tread conveyor.
A sulfur-vulcanizable rubber compound comprises a silane functionalized diene elastomer, a dual silane coupling system, and a silica filler. The non-active sulfur containing silane coupling agent excludes an active sulfur moiety. The rubber compound is a reaction product of a siloxyl condensation reaction between the silane functionalized diene elastomer and the dual silane coupling system. The dual coupling system comprises a non-active sulfur containing silane coupling agent for reacting with an associated precipitated silica to produce a hydrophobic silica; and
a crosslinking reagent for reacting with the non-active sulfur containing silane coupling agent and an associated polymer.
