Tire abnormality determination system, tire abnormality determination apparatus, tire abnormality determination method, and program

Patent metadata

Field	Value
Publication number	US-2025083476-A1
Application number	US-202218580268-A
Country	US
Kind code	A1
Filing date	Jul 21, 2022
Priority date	Oct 1, 2021
Publication date	Mar 13, 2025
Grant date	—

Abstract

A tire abnormality determination system can include: a related information acquisition portion that acquires deterioration-related information that may exert influence on deterioration of a non-pneumatic tire mounted on a vehicle; a first determination processing portion that determines, based on the deterioration-related information, at least one of presence or absence of a sign of an abnormality in the non-pneumatic tire and presence or absence of the abnormality in the non-pneumatic tire; and an output processing portion that outputs a first determination result of the first determination processing portion to a predetermined output destination.

First claim

1 . A tire abnormality determination system comprising:
a related information acquisition portion configured to acquire deterioration-related information that may exert influence on deterioration of a non-pneumatic tire mounted on a vehicle; a first determination processing portion configured to determine, based on the deterioration-related information, at least one of: presence or absence of a sign of an abnormality in the non-pneumatic tire: and presence or absence of the abnormality in the non-pneumatic tire; and an output processing portion configured to output a first determination result of the first determination processing portion to a predetermined output destination.

2 . The tire abnormality determination system according to claim 1 , wherein
the first determination processing portion determines that the sign of the abnormality has occurred in the non-pneumatic tire when a predetermined evaluation value obtained based on the deterioration-related information is equal to or higher than a predetermined first reference value and lower than a second reference value, and determines that the abnormality has occurred in the non-pneumatic tire when the evaluation value is equal to or higher than the second reference value.

3 . The tire abnormality determination system according to claim 2 , wherein
the first determination processing portion obtains the evaluation value by using a learning model that inputs the deterioration-related information and outputs the evaluation value.

4 . The tire abnormality determination system according to claim 1 , further comprising
a second determination processing portion configured to, upon a determination by the first determination processing portion that the sign of the abnormality or the abnormality is present, determine at least one or more of: a travelable time until the non-pneumatic tire becomes a disabled state in which the non-pneumatic tire cannot travel due to the abnormality; a travelable distance until the non-pneumatic tire becomes the disabled state; and a speed limit being a speed at which the non-pneumatic tire can travel safely, wherein the output processing portion further outputs a second determination result of the second determination processing portion.

5 . The tire abnormality determination system according to claim 4 , wherein
the output processing portion outputs at least one or more of the travelable time, the travelable distance, and the speed limit when the first determination processing portion determines that the sign of the abnormality is present in the non-pneumatic tire, and outputs a numerical value that is obtained by multiplying at least one or more of the travelable time, the travelable distance, and the speed limit by a predetermined reduction rate when the first determination processing portion determines that the abnormality is present in the non-pneumatic tire.

6 . The tire abnormality determination system according to claim 4 , further comprising:
a vehicle position information acquisition portion configured to acquire vehicle position information indicating a position of the vehicle; and a third determination processing portion configured to determine whether or not a repair business office that can be reached by the vehicle mounted with the non-pneumatic tire for which it has been determined that the sign of the abnormality or the abnormality is present, is included in business office position data that includes business office position information indicating: a position of a business office where a repair of the abnormality of the non-pneumatic tire is available; or a position of a business office where a replacement of the non-pneumatic tire is available, wherein the output processing portion further outputs a third determination result of the third determination processing portion.

7 . The tire abnormality determination system according to claim 1 , wherein
the non-pneumatic tire includes: an annular tread portion having a ground contact surface; a hub portion disposed inside the tread portion in a radial direction thereof; and a spoke portion coupling the tread portion to the hub portion and composed of one or more spokes that are elastically deformable, and the first determination processing portion determines presence or absence of the sign of the abnormality or presence or absence of the abnormality in one or more of the tread portion, the hub portion, and the spoke portion.

8 . The tire abnormality determination system according to claim 1 , wherein
the output processing portion outputs to either or both of: a display device loaded in the vehicle mounted with the non-pneumatic tire for which the first determination processing portion has determined that the sign of the abnormality or the abnormality is present; and a terminal apparatus associated with a driver or an owner of the vehicle.

9 . The tire abnormality determination system according to claim 6 , wherein
the output processing portion outputs to a terminal apparatus associated with the business office.

10 . The tire abnormality determination system according to claim 1 , wherein
the deterioration-related information is at least one or more of a vibration value of a tire, an acceleration applied to the tire, the number of rotations of the tire, a temperature of the tread portion of the tire, a wear amount of the tread portion of the tire, a travel distance of the vehicle, a travel time of the vehicle, a travel speed of the vehicle, an acceleration of the vehicle, a travel route of the vehicle, a steering angle of the vehicle, the number of times of braking in the vehicle, and an operation amount of a brake in the vehicle, wherein the tire is the non-pneumatic tire that is in use by being mounted on the vehicle.

11 . The tire abnormality determination system according to claim 1 , wherein
when the deterioration-related information includes: first related information including one or more pieces of information; and second related information including one or more pieces of information that are different from the one or more pieces of information of the first related information, the first determination processing portion determines presence or absence of the sign of the abnormality based on the first related information, and determines presence or absence of the abnormality based on the second related information.

12 . A tire abnormality determination apparatus comprising:
a related information acquisition portion configured to acquire deterioration-related information that may exert influence on deterioration of a non-pneumatic tire mounted on a vehicle; a first determination processing portion configured to determine, based on the deterioration-related information, at least one of: presence or absence of a sign of an abnormality in the non-pneumatic tire: and presence or absence of the abnormality in the non-pneumatic tire; and an output processing portion configured to output a first determination result of the first determination processing portion to a predetermined output destination.

13 . A tire abnormality determination method in which one or more processors execute:
a related information acquisition step of acquiring deterioration-related information that may exert influence on deterioration of a non-pneumatic tire mounted on a vehicle; a first determination step of determining, based on the deterioration-related information, at least one of: presence or absence of a sign of an abnormality in the non-pneumatic tire; and presence or absence of the abnormality in the non-pneumatic tire; and an output step of outputting a first determination result of the first dete

Assignees

• Sumitomo Rubber Ind

Inventors

• Teramoto Masaki
• TANIMURA Kazuharu
• Hashimoto Yukinori
• Nishimoto Takahiro
• Yoneda Kenji
• Maeda Yusuke
• Takeda Ai

Classifications

• B60C7/146

  extending substantially radially, e.g. like spokes · CPC title

• B60C11/246 Primary

  Tread wear monitoring systems · CPC title

• B60C7/00

  Non-inflatable or solid tyres (B60C1/00 takes precedence) · CPC title

• B60B9/04

  in leaf form · CPC title

• B60B9/26 Primary

  comprising resilient spokes · CPC title