Hankook Tire & Technology has patented a tire wear measuring apparatus that estimates tread wear using bending stiffness variation. The technology involves measuring acceleration inside the tire, calculating stiffness variation rate, and generating a control signal for the vehicle. The system utilizes a Flexible Ring tire model for accurate predictions. GlobalData’s report on Hankook Tire & Technology gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Hankook Tire & Technology, Anti-skid tyre treads was a key innovation area identified from patents. Hankook Tire & Technology's grant share as of January 2024 was 33%. Grant share is based on the ratio of number of grants to total number of patents.

Tire wear measurement apparatus using bending stiffness variation

Source: United States Patent and Trademark Office (USPTO). Credit: Hankook Tire & Technology Co Ltd

A recently granted patent (Publication Number: US11820177B2) discloses an innovative apparatus for measuring tire wear by utilizing the bending stiffness variation of a tire. The apparatus includes a signal receiver to measure acceleration inside the tire at multiple points, a signal analyzer to estimate the tread wear rate by calculating the bending stiffness variation rate, a transmitter to transmit analysis information, and a control module to generate a control signal for the vehicle based on the analysis information received.

Furthermore, the patent claims detail the method of measuring tire wear using the apparatus, involving steps such as measuring acceleration inside the tire, estimating the tread wear rate, determining the replacement time of the tire, and transmitting this information to the user of the vehicle and an external integrated control system. The apparatus and method aim to provide accurate information on tire wear, allowing for timely replacement and maintenance, ultimately enhancing vehicle safety and performance.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.