Pneumatic Tire and Vehicle

Abstract

A pneumatic tire includes a surface and is rotatable about a center axis. The surface of the pneumatic tire includes a ground colored region including a surface of rubber, and an image recognition belt region including a colored region provided in a circumferential direction of the center axis.

Description

TECHNICAL FIELD[0001]The present technology relates to a pneumatic tire and a vehicle.BACKGROUND ART[0002]In the technical field of automobiles, collision avoidance systems that detect the distance between a leading vehicle and a following vehicle and prevent collisions between the vehicles have been put into practical use. Systems using millimeter wave sensors, systems using radar sensors, and systems using cameras are known as systems for detecting the distance between vehicles. U.S. Pat. No. 8,164,628 and Japanese Unexamined Patent Application Publication No. 2013-101040A describe technologies for estimating the distance between a leading vehicle and a following vehicle using an image acquired by a camera. U.S. Pat. No. 8,164,628 describes a technology for estimating the distance to a leading vehicle using a series of images recorded by a monocular camera. Japanese Unexamined Patent Application Publication No. 2013-101040A describes a technology for extracting the left and right ...

AI Technical Summary

Benefits of technology

The patent is about a technology that helps avoid collisions between vehicles by understanding their speed and the information about their tires. The technology uses a camera to capture images and a system analyzes the images to estimate the speed of the vehicle and the information about the tires. This technology prevents declines in the recognition rate of vehicles and prevents collisions between vehicles. Overall, this patent aims to provide a safer driving experience for drivers.

Problems solved by technology

With systems in which cameras are used, the recognition rate of the vehicle by the camera may decline when it rains.

If the distance between the vehicles is estimated on the basis of an image of the tail lamps projected on the road surface instead of on the basis of an actual image of the tail lamps, the reliability of the estimation results may decline.

Particularly, when it rains at night, the recognition rate of the vehicle by the camera may decline significantly.

As such, the colored region will last a long time.

When the wear state of the tread portion is great, the vehicle itself on which the pneumatic tire is mounted has a greater possibility of having a longer braking distance, or slipping.

For example, in cases where a long period of time has passed since the tire manufacturing date, the vehicle itself has a high possibility that the performance of the pneumatic tire has deteriorated, and the vehicle itself has a high possibility of having problems stably traveling.

Additionally, in cases where the vehicle itself is traveling at the maximum traveling speed of the pneumatic tire or faster, the vehicle itself has a high possibility of having problems stably traveling.

For example, in cases where summer tires are mounted on the vehicle itself even though it is winter, the vehicle itself has a high possibility of having problems stably traveling.

In cases where a pneumatic tire with low grip performance is mounted on the vehicle itself even though it is raining, the vehicle itself has a high possibility of having problems stably traveling.

For example, in cases where vehicle weight is great, the vehicle itself has a high possibility of having a longer braking distance.

As such, the colored regions will last a long time.

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