Tire monitoring system including controller configured to control output unit to output a warning signal and tire monitoring method using the same

Patent metadata

Field	Value
Publication number	US-11656144-B2
Application number	US-202117382775-A
Country	US
Kind code	B2
Filing date	Jul 22, 2021
Priority date	Nov 10, 2020
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

This application relates to a tire monitoring system. In one aspect, the system includes a sensor module installed in a tire provided in a vehicle to obtain tire data and a communication module. The communication module may include a transceiver configured to transmit and receive the tire data, and an output unit configured to output one of a caution signal and a warning signal. The communication module may also include a controller configured to determine whether a state of the tire is abnormal based on the tire data and control the output unit to output one of the caution signal and the warning signal based on the determination result.

First claim

What is claimed is:

1. A tire monitoring system comprising:
a sensor module installed in a tire provided in a vehicle to obtain tire data; and
a communication module including:
a transceiver configured to transmit and receive the tire data;
an output unit configured to output one of a caution signal and a warning signal; and
a controller configured to determine whether a state of the tire is abnormal based on the tire data and control the output unit to output one of the caution signal and the warning signal based on a determination result,

wherein the tire data includes information on an air pressure, an acceleration, and a temperature of the tire,
wherein the controller is configured to calculate a wear value of the tire based on the air pressure and the acceleration, and determine whether the state of the tire is abnormal based on the air pressure, the acceleration, the temperature, and the wear value,
wherein the tire includes a plurality of tires,
wherein the acceleration includes a first acceleration in a tangential direction of the tire and a second acceleration in a radial direction of the tire, the tangential direction being perpendicular to the radial direction of the tire and an axial direction of the tire,
wherein the controller is configured to calculate one or more first differences between air pressures of at least two of the tires included in the tire data, and cause the output unit to output the caution signal when at least one of the first differences is equal to or greater than a predetermined first value,
wherein the controller is configured to cause the output unit to output the warning signal when a second difference between one of the air pressures included in the tire data and a predetermined appropriate air pressure value is equal to or greater than a predetermined second value,
wherein the controller is configured to cause the output unit to output the caution signal when one of the temperatures included in the tire data is equal to or greater than a predetermined temperature value,
the controller is configured to calculate a temperature change amount in at least one of the tires based on the temperatures included in the tire data, and cause the output unit to output the warning signal when the temperature change amount is equal to or greater than a predetermined temperature change amount,
the controller is configured to cause the output unit to output the caution signal when a third difference between the first acceleration in each of the tires and a preset first acceleration is equal to or greater than a predetermined first acceleration value, or a fourth difference between the second acceleration in each of the tires and a preset second acceleration is equal to or greater than a predetermined second acceleration value, and
the controller is configured to calculate a wear rate of at least one of the tires based on the wear value, and cause the output unit to output the caution signal when the wear rate is equal to or greater than a preset reference wear value.

2. The tire monitoring system of claim 1 , further comprising:
a server configured to communicate with the transceiver,
wherein the controller is configured to create state data for the tires based on the determination result, the state data including information on an air pressure of the tire, and
wherein the server is configured to determine whether air in the tire leaks based on the air pressure included in the state data, and transmit a leakage caution signal to the communication module based on a determination result regarding a leakage of the air.

3. A tire monitoring system comprising:
a sensor module installed in a tire provided in a vehicle to obtain tire data; and
a communication module including:
a transceiver configured to transmit and receive the tire data;
an output unit configured to output one of a caution signal and a warning signal; and
a controller configured to determine whether a state of the tire is abnormal based on the tire data and control the output unit to output one of the caution signal and the warning signal based on a determination result,

wherein the tire includes a first tire and a second tire,
wherein the sensor module includes a plurality of sensor modules,
wherein the plurality of sensor modules include a first sensor module provided in the first tire to obtain first tire data of the first tire and a second sensor module provided in the second tire to obtain second tire data of the second tire,
wherein the communication module includes:
a master having the transceiver, the controller, and the output unit, the master receiving the first tire data through the transceiver; and
a slave disposed closer to the second tire than the master, the slave receiving the second tire data and transmitting the second tire data to the master, and

wherein the master is configured to determine whether states of the first tire and the second tire are abnormal through the first tire data and the second tire data.

4. A tire monitoring method using the tire monitoring system of claim 3 , comprising:
collecting tire data through the sensor module included in the tire monitoring system and provided in the tire;
determining a state of the tire through the master included in the communication module determining whether the state of the tire is abnormal based on the tire data;
creating state data of the tire based on a result of a determination on whether the state is abnormal; and
outputting one of a caution signal and a warning signal based on the determination result through the communication module.

5. The tire monitoring method of claim 4 , wherein the state data includes information on an air pressure of the tire, the method further comprising:
determining, through a server included in the tire monitoring system, whether air in the tire leaks based on the air pressure after the creating state data; and
transmitting a leakage caution signal to the communication module based on a determination result regarding a leakage of the air through the server.

Assignees

• Kumho Tire Co Inc

Inventors

• Kim Hyoungseok
• Kim Hyounjung

Classifications

• B60C23/0462

  Structure of transmission protocol · CPC title

• B60C19/00

  Tyre parts or constructions not otherwise provided for · CPC title

• B60C23/0484

  Detecting an ongoing tyre inflation · CPC title

• G07C5/0816

  Indicating performance data, e.g. occurrence of a malfunction · CPC title

• B60C2019/004

  Tyre sensors other than for detecting tyre pressure · CPC title