Bridgestone Europe Patente

An adhesive composition for a surface of a pneumatic tyre and use thereof, tyre comprising the adhesive composition and a method of applying the adhesive composition.

This disclosure is generally directed to computer-implemented methods and apparatus for calculating and/or monitoring a tire wear rate of a vehicle. In one embodiment, a computer-implemented method for determining tire wear of at least one tire mounted to a vehicle is provided. The method comprises obtaining a vehicle speed information of the vehicle, v<vehicle>, obtaining tire movement data from at least one sensor mounted to the at least one tire or at least one rim of the vehicle, and determining the tire wear based on the tire movement data and vehicle speed information.

A process for rubberising an electronic device for a tyre and a rubberised electronic device obtained or obtainable therefrom, the process comprising coating the electronic device with a liquid composition.

The present disclosure relates to determining the stress response of a viscoelastic material. More particularly, the present disclosure relates to computer-implemented methods for training a model to determine the stress response of viscoelastic material, methods for training a machine learning model to determine the viscosity of viscoelastic material, methods for generating augmented training data for determining the stress response of viscoelastic material, as well as to corresponding devices and computer programs. The methods, devices and computer programs as disclosed herein may be used for designing and manufacturing a tire.

A rubber composition for a pneumatic tyre comprising a polymer having a low glass transition temperature and a blend of hydrocarbon resins and pneumatic tyre produced therefrom.

A rubber composition for a pneumatic tyre comprising a polymer having a low glass transition temperature and a blend of hydrocarbon resins and pneumatic tyre produced therefrom.

A rubber composition for a pneumatic tyre comprising a polymer having a low glass transition temperature and a blend of hydrocarbon resins, and a pneumatic tyre produced therefrom.

Method and application unit for applying a sound-absorbing material (2) to a cavity of a pneumatic tyre (1) using a strip (4) of sound-absorbing material provided on one side with an adhesive layer (6) covered with a protective lining (7), the method comprising the steps of: cutting the strip (4) of sound-absorbing material and leaving intact the protective lining, separating an excess end (5) from the remaining part of the strip of sound-absorbing material (2), eliminating the excess end (5) such as to confer a required length to the same strip of sound-absorbing material and leaving intact a residual portion (9) of the protective lining, progressively separating the protective lining from the strip of sound-absorbing material, step-by-step, as the strip of sound-absorbing material is applied to the cavity of the tyre, wherein a heated instrument (19) for cutting the strip of sound-absorbing material is used.

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A computer-implemented method (100) of monitoring a current load (201) on a tire (3) mounted on a vehicle (2), the method (100) including: obtaining (e.g. by a server device (7)) sensor readings (23) from one or more tire monitoring system (TMS) sensors (5) mounted on the tire (5);accessing (e.g. by the server device (7)) characteristic information (25a) relating to the tire (5);selecting (e.g. by the server device (7)), based on the characteristic information (25a), a suitable one of a plurality of computer models (15); andusing (e.g. by the server device (7)) the selected computer model (15) to estimate a current tire load value (201) based on the sensor readings (23).

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A method for measuring impact signals over a plurality of revolutions of a tire that rolls on a road surface is provided, the impact signals being induced in acceleration data measured by an acceleration sensor mounted in the tire at a contact patch coming into contact with the road surface with each revolution of the tire. The method comprises acquiring the acceleration data over a plurality of revolutions of the tire and processing the acceleration data at the sensor. Processing the acceleration data at the sensor comprises processing the acceleration data to measure acceleration values for each impact signal and calculate an impact peak acceleration value (a_min); calculating a running average of the impact peak acceleration value (a_min) over the plurality of revolutions of the tire; measuring a start time and an end time of each impact signal by comparing acceleration values of the acceleration data to a first or second dynamic threshold, wherein the dynamic threshold is adjusted dependent on the running average of the impact peak acceleration value (a_min); and generating, from the measured start time and end time of each impact signal, a time-related parameter chosen from one or more of: a duration of an impact signal (t_patch), a time period between two consecutive impact signals (t_rev), and a ratio between the duration (t_patch) and the time period (t_rev). The method further comprises transmitting the time-related parameter to an external server.

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The invention relates to a method of adhering a device (10) to a tyre, the method comprising: applying adhesive to a surface of the device, wherein applying adhesive comprises: applying an inner portion (14) of adhesive to the surface of the device; and applying an outer line of adhesive to the surface of the device, wherein the outer line (16) of adhesive at least partially surrounds the inner portion (14) of adhesive; the method further comprising: applying the device (10) to the tyre, wherein applying the device to the tyre comprises: applying pressure to the device to spread the inner portion and outer line of adhesive over the device for creating a uniform film of adhesive between the device and the tyre. A method for manufacturing a tyre comprising said method is also disclosed.

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