KR101741730B1 - Tire Monitoring System in a vehicle and method thereof - Google Patents
Tire Monitoring System in a vehicle and method thereof Download PDFInfo
- Publication number
- KR101741730B1 KR101741730B1 KR1020150189135A KR20150189135A KR101741730B1 KR 101741730 B1 KR101741730 B1 KR 101741730B1 KR 1020150189135 A KR1020150189135 A KR 1020150189135A KR 20150189135 A KR20150189135 A KR 20150189135A KR 101741730 B1 KR101741730 B1 KR 101741730B1
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- KR
- South Korea
- Prior art keywords
- tire
- wear
- vehicle
- data
- measuring
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/24—Wear-indicating arrangements
- B60C11/246—Tread wear monitoring systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/24—Wear-indicating arrangements
- B60C11/243—Tread wear sensors, e.g. electronic sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C2019/006—Warning devices, e.g. devices generating noise due to flat or worn tyres
- B60C2019/007—Warning devices, e.g. devices generating noise due to flat or worn tyres triggered by sensors
Abstract
The present invention provides a tire monitoring system and a control method thereof. A tire monitoring system according to an embodiment of the present invention includes a pressure measuring unit for measuring a pressure of a tire mounted on a vehicle, a travel distance measuring unit for measuring a travel distance of the tire, a communication unit for receiving tire wear rate data from the tire data base, Calculating a wear rate of the tire mounted on the vehicle based on the measured pressure of the tire, the measured mileage and the received wear rate data, and warning the user if the calculated wear rate is equal to or greater than a preset threshold value .
Description
The present invention relates to a tire monitoring system and a control method thereof for measuring a degree of abrasion of a tire mounted on a vehicle equipped with a tire monitoring system and warning a user of a tire replacement time according to the degree of wear.
Generally, a tire is formed with a plurality of blocks divided into a plurality of grooves on a tread surface in order to improve ride comfort and steering performance.
The tread having the above-described structure wears on the block due to frictional force with the ground while contacting with the ground during running, and the depth of the groove becomes shallow as the block is worn down. As a result, ride comfort and steering performance are lowered, May be damaged.
Therefore, the life of the tire is determined by checking the degree of wear of the tire by the tread wear indicator or the depth of the tire tread. The tire is deformed by the internal pressure of the tire, As a result, a measurement error occurs and the standard of determination of the tire replacement cycle is ambiguous and the tire is used up to the abrasion limit of the tire, so that accidents caused by breakage of the tire frequently occur.
In addition, the wheel alignment of the vehicle may be distorted, or the driver may wear the tire abnormally (irregularly) due to driving habits to cause an accident.
In order to solve the problem, the degree of wear of the tire is measured by taking into consideration all kinds of tires, air pressure, sensor signals of wear measurement on the outside of the tire, etc. through a separate safety system that continuously monitors the state of the tire, It is necessary to develop a technique for improving the accuracy of the tire wear measurement through the base information.
The embodiment of the present invention intends to increase the accuracy of the wear degree measurement by taking into consideration both the type of tire installed on the vehicle and the tire air pressure.
According to an aspect of the present invention, there is provided an apparatus for measuring tire wear, comprising: a pressure measuring unit for measuring a pressure of a tire mounted on a vehicle; a travel distance measuring unit for measuring a travel distance of the tire; And calculating a wear rate of the tire mounted on the vehicle based on the measured pressure of the tire, the measured mileage and the received wear rate data, and alerts the user if the calculated wear rate is equal to or greater than a preset threshold value A tire monitoring system including a controller may be provided.
The apparatus may further include an abrasion measuring unit for measuring a degree of abrasion of the tire.
Further, the control unit may further include internal data for calculating a wear degree and a travelable distance based on the measured pressure of the tire and the measured wear degree, and when the wear degree data is not received from the communication unit, The wear degree of the tire can be calculated on the basis of the data.
The communication unit may further include an external communication unit for receiving tire wear data corresponding to the type of the tire mounted on the vehicle, and an internal communication unit for receiving the shift information of the vehicle.
In addition, if the calculated wear rate is equal to or greater than a preset threshold value, the controller may warn the user of the vehicle state during the P or N shift control.
According to another aspect of the present invention, there is provided a method of measuring tire wear, comprising the steps of measuring a pressure of a tire mounted on a vehicle, measuring a degree of wear of the tire, measuring a travel distance of the tire, Calculating wear of the tire mounted on the vehicle based on the pressure of the measured tire, the degree of wear of the measured tire, and the received wear rate data; And warning the user if the calculated wear rate is equal to or greater than a preset threshold value.
Calculating a wear rate of a tire mounted on the vehicle based on the measured pressure of the tire, the measured distance traveled, and the received wear rate data, if the wear rate data is not received from the communication unit Calculating a wear rate based on the measured pressure of the tire and the measured mileage.
Calculating a wearable distance on the basis of the measured mileage, calculating a travelable distance based on the pressure of the measured tire, the measured mileage, and the wear of the measured tire; .
The tire wear data received from the tire database may include tire wear data corresponding to the type of tire mounted on the vehicle.
Further, when the calculated wear rate is equal to or greater than a preset threshold value, the vehicle state can warn the user at the time of the P or N shift control.
The embodiment of the present invention can increase the accuracy of the measurement of the degree of abrasion by considering the type of tire installed on the vehicle and the air pressure of the tire.
In addition, even if the type of tire is changed after the replacement of the tire of the vehicle, it is possible to inform the driver of the replacement period of the tire in advance by measuring the degree of wear according to each type of wear information of each type of tire. It is possible to prevent an accident in advance.
1 is a block diagram illustrating various electronic devices included in a vehicle including a tire monitoring system according to an embodiment of the present invention.
2 is a block diagram of a tire monitoring system in accordance with an embodiment of the present invention.
3 is a schematic view showing a method of measuring the wear of a tire.
4 is a schematic diagram showing communication with an external database of a vehicle equipped with a tire monitoring system according to the present invention.
5 is a schematic view including a pressure sensor included in each wheel of a vehicle equipped with the tire monitoring system according to the present invention.
6 is a graph showing tire wear according to the moving distance of the vehicle.
7 is a flowchart illustrating a control method of a tire monitoring system according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully convey the spirit of the present invention to a person having ordinary skill in the art to which the present invention belongs. The present invention is not limited to the embodiments shown herein but may be embodied in other forms. For the sake of clarity, the drawings are not drawn to scale, and the size of the elements may be slightly exaggerated to facilitate understanding.
1 is a block diagram illustrating various electronic devices included in a vehicle including a tire monitoring system according to an embodiment of the present invention. FIG. 2 is a block diagram of a tire monitoring system according to an embodiment of the present invention. 4 is a schematic view showing communication with an external database of a vehicle equipped with a tire monitoring system according to the present invention and Fig. 5 is a schematic view including a pressure sensor included in each wheel of a vehicle equipped with the tire monitoring system according to the present invention to be.
1, the vehicle 1 includes an audio / video / navigation (AVN)
However, the
In addition, the various
The Vehicle Communication Network (NT) may be a Media Oriented Systems Transport (MOST) having a communication speed of up to 24.5 Mbps (Mega-bits per second), a FlexRay having a communication speed of up to 10 Mbps, a CAN (Controller Area Network) having a communication speed of 1 Mbps to 1 Mbps, and a LIN (Local Interconnect Network) having a communication speed of 20 kbps. Such a vehicle communication network NT can employ not only a single communication protocol such as a mast, a player, a can, a lean, but also a plurality of communication protocols.
The AVN
The AVN
Also, the AVN display may employ a liquid crystal display (LCD) panel or an organic light emitting diode (OLED) panel.
The input /
The
The
The
The
The
The
2, the
The
Specifically, although not shown, the
The external communication unit (not shown) can access the
An internal communication unit (not shown) receives information from various
For example, it is possible to check whether the gear position of the vehicle is in the P state or the N state to check whether the vehicle is in the stop state, transmit the processed control signal in the
Next, the wear
As shown in Fig. 3, the tire may have a tread wear indicator b located on the tread c of the tire and on the top surface of the tire d and on the top of the tread wear indicator b The distance between the surface of the tire and the treadmill indicator b is calculated based on the distance between the surface of the tire a and the treadmill indicator b from the sensor a including the sensor a, It is possible to calculate the wear rate information in the state.
Next, the
5, the
That is, this TPMS sensor module transmits the pressure information of the tire to the
The travel
That is, the travel distance can be secured by measuring the number of rotations of the tire and the like through the travel
The
Next, the
Specifically, the
First, the
In addition, the
Therefore, the
For example, FIG. 6 is a graph showing the degree of wear according to the mileage of the present invention.
The thick solid line is a graph showing the wear rate [%] according to the running distance of the vehicle tire. The abrasion data according to mileage may vary from tire to tire, and wear due to tire air pressure may also vary.
The
That is, as the wearer information provided by the tire supplier is received, it is possible to accurately calculate the wear value depending on the tire type, and to predict the replacement timing or cycle.
For example, as shown in FIG. 6, the bold solid line indicating the wear rate [%] according to the running distance of the vehicle tire may vary depending on the wear rate information provided by the tire supplier.
The graph indicated by the dotted line is a graph showing a record measured through the tire of the vehicle 1 equipped with the
At this time, when the preset threshold value A is reached, the
In addition, since the
Specifically, the
Next, the
Specifically, the
The nonvolatile memory may semi-permanently store a control program and control data for controlling the operation of the
The configuration of the
Hereinafter, FIG. 7 is a flowchart of a method of controlling the
First, the
Accordingly, the
At this time, if the wireless communication of the vehicle is established (YES in S40), the
In order to improve the accuracy of the tire wear measurement, it is necessary to determine the tire wear rate from the
Accordingly, the
Next, the
If the wireless communication of the vehicle is not established (NO in S40), the
Next, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein; It will be understood that various modifications may be made without departing from the spirit and scope of the invention.
1: vehicle
170: Tire monitoring system
Claims (10)
A traveling distance measuring unit for measuring a traveling distance of the tire;
A communication unit that receives tire wear rate data from a tire database; And
Estimates the wear rate of the tire based on the measured distance of the tire block and the measured travel distance, and compares the estimated tire wear with the received tire wear data to alert the user when the estimated tire wear is out of a preset threshold range And a control unit.
And a pressure measuring unit for measuring the air pressure of the tire,
Wherein the control unit further includes an air pressure of the measured tire to estimate wear of the tire when estimating wear of the tire.
Wherein the control unit further includes internal data in which the wear degree and the travelable distance according to the distance between the tire pressure and the tire pressure are stored,
And compares the internal data with the estimated tire wear when the wear data is not received from the communication unit.
The communication unit
An external communication unit for receiving tire wear data corresponding to the type of tire mounted on the vehicle;
And an internal communication unit for receiving the shift information of the vehicle.
Wherein the control unit warns the user when the vehicle state is P or N shift control when the estimated wear rate is out of a predetermined threshold range.
Measuring a running distance of the tire;
The method comprising: receiving tire wear data from a tire database;
Estimating wear of the tire based on the distance of the measured tire block and the measured mileage; And
And comparing the estimated tire wear rate with received tire wear data to alert the user if the estimated tire wear is out of a preset threshold value.
And measuring the air pressure of the tire,
And estimating the wear rate of the tire by further including an air pressure of the tire when the wear rate of the tire is estimated.
Wherein the tire wear rate data further includes internal data in which abrasion and travelable distances according to a distance between the tire pressure and the tire pressure are pre-stored, and when reception of the abrasion data is not performed, A tire monitoring and control method for comparing wear rates.
Wherein the tire wear data received from the tire database includes tire wear data corresponding to the type of tire mounted on the vehicle.
And when the estimated wear rate is equal to or greater than a predetermined threshold value, warning the user at the time of P or N shift control of the vehicle state.
Priority Applications (1)
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KR1020150189135A KR101741730B1 (en) | 2015-12-30 | 2015-12-30 | Tire Monitoring System in a vehicle and method thereof |
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KR1020150189135A KR101741730B1 (en) | 2015-12-30 | 2015-12-30 | Tire Monitoring System in a vehicle and method thereof |
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KR101741730B1 true KR101741730B1 (en) | 2017-06-16 |
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KR1020150189135A KR101741730B1 (en) | 2015-12-30 | 2015-12-30 | Tire Monitoring System in a vehicle and method thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190088302A (en) | 2018-01-18 | 2019-07-26 | 재단법인한국조선해양기자재연구원 | Car tire monitoring device |
US10832567B2 (en) | 2018-10-19 | 2020-11-10 | Toyota Motor North America, Inc. | Systems and methods for generating composite real-time traffic images based on triggering events using data from vehicle borne sensors |
US10987977B2 (en) | 2018-10-26 | 2021-04-27 | Toyota Motor North America, Inc. | Systems and methods for measuring tire wear using embedded image sensors |
EP4101659A1 (en) * | 2021-06-08 | 2022-12-14 | The Goodyear Tire & Rubber Company | Tire replacement forecasting system and method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004168185A (en) * | 2002-11-20 | 2004-06-17 | Honda Motor Co Ltd | Tire air pressure monitoring device |
JP2007168671A (en) * | 2005-12-22 | 2007-07-05 | Toyota Motor Corp | Tire damage determination device |
JP2015160556A (en) * | 2014-02-28 | 2015-09-07 | パイオニア株式会社 | Wear-out level calculation device and wear-out level display device |
-
2015
- 2015-12-30 KR KR1020150189135A patent/KR101741730B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004168185A (en) * | 2002-11-20 | 2004-06-17 | Honda Motor Co Ltd | Tire air pressure monitoring device |
JP2007168671A (en) * | 2005-12-22 | 2007-07-05 | Toyota Motor Corp | Tire damage determination device |
JP2015160556A (en) * | 2014-02-28 | 2015-09-07 | パイオニア株式会社 | Wear-out level calculation device and wear-out level display device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190088302A (en) | 2018-01-18 | 2019-07-26 | 재단법인한국조선해양기자재연구원 | Car tire monitoring device |
US10832567B2 (en) | 2018-10-19 | 2020-11-10 | Toyota Motor North America, Inc. | Systems and methods for generating composite real-time traffic images based on triggering events using data from vehicle borne sensors |
US10987977B2 (en) | 2018-10-26 | 2021-04-27 | Toyota Motor North America, Inc. | Systems and methods for measuring tire wear using embedded image sensors |
EP4101659A1 (en) * | 2021-06-08 | 2022-12-14 | The Goodyear Tire & Rubber Company | Tire replacement forecasting system and method |
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