Bridgestone has patented a tire damage detection method involving preliminary tests with different obstacles and motor vehicle speeds. The method includes acquiring wheel speed signals, computing normalized wheel speeds, and detecting potential tire damage based on a predefined model. The system utilizes an acquisition device and processing system on board a motor vehicle. GlobalData’s report on Bridgestone 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 Bridgestone, Anti-skid tyre treads was a key innovation area identified from patents. Bridgestone's grant share as of February 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.

Tire damage detection method for motor vehicles

Source: United States Patent and Trademark Office (USPTO). Credit: Bridgestone Corp

A tire damage detection method and system have been granted a patent (Publication Number: US11919337B2). The method involves using an acquisition device installed on a motor vehicle to acquire signals indicative of wheel speed and compute a normalized wheel speed ratio. By comparing this data with a predefined tire damage model, potential tire damage can be detected. The system includes an acquisition device and a processing system that undergoes a preliminary stage of tests to determine the predefined tire damage model. This model includes thresholds related to average wheel speed values and time lengths, allowing for the detection of potential tire damage based on the difference between maximum and minimum values of the normalized wheel speed.

Furthermore, the tire damage detection system also considers tire inflation pressure values in the detection process. By acquiring signals indicative of tire inflation pressure and selecting thresholds based on both average wheel speed and tire pressure, the system can enhance the accuracy of detecting potential tire damage. Additionally, the system includes a notification device to alert the user if potential tire damage is detected. The patent also covers a cloud computing system remotely connected to the acquisition device, allowing for wireless data transfer and detection of potential tire damage based on the predefined model. The cloud computing system can also communicate potential tire damage to the user via an electronic communication device for timely action.

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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.