KR101491014B1 - A Tire Pressure Monitoring System and A Vehicle comprising the same - Google Patents

Abstract

A tire pressure sensing system according to an embodiment of the present invention includes: a plurality of pressure sensors for sensing pressure of a plurality of tires; A plurality of module control units for outputting tire information including pressure of a tire; A steering sensor for sensing the steering of the vehicle; And a control unit which receives a plurality of pieces of tire information output by the plurality of module control units and matches a change in the steering of the vehicle and a change in the pressure of the plurality of tires to determine the source of the tire information.

Description

A tire pressure sensing system and a vehicle including the tire pressure sensing system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire pressure sensing system and a vehicle including the tire pressure sensing system, and more particularly to a tire pressure sensing system for detecting a position of a tire pressure sensing module by matching a change in a steering of a vehicle with a change in pressure of a tire ≪ / RTI >

The tire pressure sensing system senses the pressure and / or temperature of the tire and sends it to the driver's seat so that the driver can check the pressure of the tire in real time.

If the air pressure of a car tire is too high or too low, there is a possibility that a tire may be blown or the vehicle may slip easily, leading to a major accident. In addition, the fuel consumption increases, fuel economy deteriorates, tire life is shortened, and ride comfort and braking power are greatly reduced.

In order to prevent defects in such tires, a safety device mounted on the vehicle is a tire pressure sensing system. The tire pressure sensing system measures the pressure and / or temperature inside the tire and sends this information wirelessly. There is a problem in that it is not possible to determine from which tire pressure sensor the pressure and / or temperature information of the tire received wirelessly when the wheel, the tire, or the like is first mounted, replaced, or changed in position.

Since the tire pressure monitoring module communicates wirelessly with the electronic control device of the automobile by being separated from the automobile battery, the battery must be built in separately. Therefore, there is a need to study the problem of reducing the battery consumption of the tire pressure monitoring module.

SUMMARY OF THE INVENTION The present invention provides a method for automatically assigning a position of a tire pressure sensing module and a tire pressure sensing system including a tire pressure sensing module for automatically determining a position of a tire monitoring module and automatically assigning the position.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a tire pressure sensing system including: a plurality of pressure sensors for sensing a pressure of a plurality of tires; A plurality of module control units for outputting tire information including pressure of a tire; A steering sensor for sensing the steering of the vehicle; And a control unit which receives a plurality of pieces of tire information output by the plurality of module control units and matches a change in the steering of the vehicle and a change in the pressure of the plurality of tires to determine the source of the tire information.

A method of controlling a tire pressure sensing system according to an embodiment of the present invention includes sensing a pressure of a tire; Sensing steering of the vehicle; Determining a time when the pressure of the tire changes to the maximum; Transmitting tire information including information about changes in pressure of the tire; Matching a change in pressure of the tire with a change in steering of the vehicle; And determining the source of the tire information based on the data according to the matching performed.

An automobile according to an embodiment of the present invention includes a braking device for braking the speed of the vehicle; A plurality of pressure sensors for sensing pressure of a plurality of tires; A plurality of module control units for outputting tire information including pressure of a tire; A steering sensor for sensing the steering of the vehicle; And a control unit which receives a plurality of pieces of tire information outputted by the plurality of module control units and matches the change of the steering of the vehicle or the change of the speed of the vehicle with the change of the pressure of the plurality of tires, .

The details of other embodiments are included in the detailed description and drawings.

The tire pressure sensing system and the tire pressure sensing system control method of the present invention have one or more of the following effects.

The tire pressure sensing system and the tire pressure sensing system control method of the present invention can easily identify the position of the tire pressure sensing module by matching the change of the steering and the pressure of the vehicle to reduce the battery consumption of the tire pressure sensing module have.

The tire pressure sensing system and the tire pressure sensing system control method according to the present invention determine the position of the tire pressure sensing module according to the pressure of the tire changing with a rule according to the steering or speed of the vehicle, Can be improved.

The tire pressure sensing system and the tire pressure sensing system control method of the present invention can minimize the battery usage of the tire pressure sensing module by activating the pressure sensing sensor only a predetermined number of times according to a predetermined period.

The tire pressure sensing system and the tire pressure sensing system control method of the present invention can output tire information only once in a single cycle, not every time when the tire pressure sensing module senses the pressure of the tire, thereby minimizing battery consumption.

1 is a view illustrating a vehicle including a tire pressure sensing module according to an embodiment of the present invention.
2 is a block diagram of a tire pressure sensing system in communication with a tire pressure sensing module in accordance with an embodiment of the present invention.
3 is a block diagram illustrating components of a tire pressure sensing module according to an embodiment of the present invention.
4 is a graph showing changes in pressure values of a tire according to an embodiment of the present invention.
5 is a diagram showing a packet configuration of tire information output by the tire pressure sensing module according to an embodiment of the present invention.
6 is a flowchart illustrating an operation of a tire pressure sensing system according to an embodiment of the present invention.
7 is a flowchart illustrating a method of controlling a tire pressure sensing system according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The suffix "module" and "part" for constituent elements used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

At this point, it will be appreciated that the combinations of blocks and flowchart illustrations in the process flow diagrams may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, so that those instructions, which are executed through a processor of a computer or other programmable data processing apparatus, Thereby creating means for performing functions. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory The instructions stored in the block diagram (s) are also capable of producing manufacturing items containing instruction means for performing the functions described in the flowchart block (s). Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible for the instructions to perform the processing equipment to provide steps for executing the functions described in the flowchart block (s).

In addition, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative implementations, the functions mentioned in the blocks may occur out of order. For example, two blocks shown in succession may actually be executed substantially concurrently, or the blocks may sometimes be performed in reverse order according to the corresponding function.

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described with reference to the drawings for explaining a tire pressure sensing module and a tire pressure sensing system including the same according to embodiments of the present invention.

1 is a view illustrating a vehicle including a tire pressure sensing system according to an embodiment of the present invention.

The tire pressure sensing system 100 according to an embodiment of the present invention senses the pressure and / or temperature of the tire 20 and wirelessly transmits tire information including sensed pressure values and / or temperature values and other information A wheel rotation detection module 130 for sensing rotation information of the wheel 10 and a tire information transmission and reception unit 130 for wirelessly receiving tire information transmitted from the tire pressure detection module 120. [ Module 150 and a control unit 140 that receives rotation information of the wheel 10 from the wheel rotation detection module 130 and receives tire information from the tire information transmission and reception module 150 and performs various control functions do.

The tire pressure sensing system 100 according to an embodiment of the present invention includes a plurality of pressure sensors for sensing the pressures of a plurality of tires, a plurality of module controllers for outputting tire information including pressures of the tires, A control unit (140) for receiving a plurality of tire information output from a steering sensor for sensing and a plurality of module control units to identify a source of tire information by matching a change in steering of the vehicle and a change in pressure of a plurality of tires, . ≪ / RTI >

Generally, a plurality of wheels 10 of the vehicle are provided. In this embodiment, the wheel 10 includes an FR wheel 10FR provided on the front right side of the vehicle body 1, an FL wheel 10FL provided on the front left side, an RR wheel 10RR provided on the rear right side, And an RL wheel 10RL provided in the vehicle. Depending on the embodiment, the wheels 10 may be provided in various numbers.

The tire 20 is mounted on the outer periphery of the wheel 10 of the vehicle and may be formed of a rubber material. The tire 20 can be mounted on the rim of the wheel 10. A plurality of tires 20 are provided and in this embodiment the tire 20 comprises an FR tire 20FR provided on the front right side of the vehicle body 1, an FL tire 20FL provided on the front left side, And includes an RR tire 20RR and a rear left RL tire 20RL. The FR tire 20FR is included in the FR wheel 10FR and the FL tire 20FL is included in the FL wheel 10FL and the RR tire 20RR is included in the RR wheel 10RR and the RL tire 20RL, Is included in the RL wheel 10RL.

The tire pressure sensing module 120 senses the pressure and / or temperature of the tire 20 to determine the degree of air pressure of the tire 20. The tire pressure sensing module 120 can sense pressure, temperature, and other information that can calculate the air pressure of the tire 20 or determine the degree of the air pressure. In the present embodiment, 20). ≪ / RTI >

The tire pressure sensing module 120 may be installed at various positions of the wheel 10, such as the rim of the wheel 10 or the side of the tire 20. The tire pressure sensing module 120 includes an FR tire pressure sensing module 120FR provided on the front right side of the vehicle body 1, An FL tire pressure sensing module 120FL, an RR tire pressure sensing module 120RR provided on the rear right side, and an RL tire pressure sensing module 120RL provided on the rear left side.

In the present embodiment, the FR tire pressure sensing module 120FR senses the pressure and temperature of the FR tire 20FR, the FL tire pressure sensing module 120FL senses the pressure and temperature of the FL tire 20FL, The tire pressure sensing module 120RR senses the pressure and temperature of the RR tire 20RR and the RL tire pressure sensing module 120RL senses the pressure and temperature of the RL tire 20RL.

In the case of an embodiment of the present invention, a plurality of tire pressure sensing modules 120 may each transmit information of the wheel 10 to the control unit 140. Each of the plurality of wheel rotation detection modules 130 is connected to the control unit 140 in a wired manner. Each of the plurality of wheel rotation detection modules 130 may be connected to the control unit 140 via a controller area network (CAN) bus.

The tire information transmission / reception module 150 can wirelessly receive the tire information transmitted by the tire pressure sensing module 120. [ The tire information transmission / reception module 150 may be provided in the vehicle body 1 and may receive the respective tire information from the plurality of tire information transmission / reception modules 150. The tire information transmission / reception module 150 may be connected to the control unit 140 in a wired manner and may transmit the received tire information to the control unit 140. The tire information transmission / reception module 150 may be included in the control unit 140 according to the embodiment.

The control unit 140 receives the information of each wheel 10 from the plurality of wheel rotation detection modules 130. [ The control unit 140 may integrate and store the information of the wheel 10 transmitted from an arbitrary point in time.

The control unit 140 may be separately provided for the tire pressure sensing system 100 but may be an electronic control unit (ECU) for controlling the state of an engine, an automatic transmission, an ABS, or the like of a vehicle .

The control unit 140 may determine which tire pressure sensing module 120 of the plurality of tire pressure sensing modules 120 has transmitted the tire information transmitted from the tire information transmission and reception module 150 and store the information. The control unit 140 can determine which of the FR tire 20, the FL tire 20, the RR tire 20, and the RL tire 20 is the tire information.

The types and processing methods of the signals that the tire pressure sensing module 120 and the control unit 140 exchange with each other may include various embodiments and the present invention is not limited to any one of the signal processing methods .

FIG. 2 is a block diagram illustrating a tire pressure sensing system in communication with a tire pressure sensing module according to an embodiment of the present invention. FIG. 3 is a block diagram of a component of a tire pressure sensing module 120 according to an embodiment of the present invention. Fig.

Referring to FIG. 2, a tire pressure sensing system according to an embodiment of the present invention includes a tire pressure sensing module (not shown) for transmitting tire information on tire pressure or temperature, a memory 220 for storing data, And a control unit 210 for performing a control operation.

The control unit 210 performs various functions for specifying the position of a tire pressure sensing sensor (not shown), and executes various software programs and / or sets of instructions stored in the memory 220 Or can be performed. The control unit 10 may process the signal based on the information stored in the memory 20. [

For example, the control unit 210 may display the data stored in the memory 220 with the output device 240, or may execute the program stored in the memory 220. [ The control unit 210 may calculate the time in conjunction with the timer (not shown) to perform the program, but is not limited thereto.

The memory 220 may include a high speed random access memory. The memory 220 may also include non-volatile memory, such as, but not limited to, one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state memory devices.

For example, the memory 220 may include, but is not limited to, Electronically Erasable and Programmable Read Only Memory (EEP-ROM). The EEP-ROM can be written and erased by the control unit 210 during the operation of the control unit 210. [ The EEP-ROM may be a storage device in which the information stored therein is not erased even when the power supply of the control unit 210 is turned off and the power supply is stopped.

The memory 220 may store various programs or data in cooperation with the control unit 210. The program stored in the memory 220 may be executed by the control unit 210. [

The control unit 210 may receive tire information from a tire pressure sensing module (not shown). When the control unit 210 receives the tire information, the control unit 210 may display the pressure or temperature of the tire and the like on the output device 240. The tire information may include a temperature value of the tire, or a voltage value of the pressure sensing battery.

The output device 240 may include a speaker for outputting sound or a display device for emitting light to provide a visual indication. The output device 240 may be a light emitting polymer display (LPD), a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display a flexible display, and a 3D display. However, the present invention is not limited thereto.

The output device 240 can display various kinds of information. When the control unit receives the tire information, the output device 240 can display the tire information in real time by reflecting the tire information.

The tire information transmission / reception module 250 can wirelessly communicate with a tire pressure sensing module (not shown). The tire information transmission and reception module 250 may be configured to transmit and receive radio signals such as Bluetooth, Radio Frequency Identification, IrDA, Ultra Wideband, ZigBee, Wi-Fi, However, the present invention is not limited to this.

The tire information transmission / reception module 250 may receive tire information from a tire pressure sensing module (not shown). The control unit 210 may indicate to the output device 240 that a problem has occurred in the tire when the warning signal transmitted from the tire pressure sensing module indicating that a problem with the tire pressure has been received.

The steering sensor 230 may sense the traveling direction of the vehicle. The steering sensor 230 may be activated with a predetermined period. For example, the steering sensor 230 may be activated or deactivated with the same period as the pressure sensor of the tire pressure sensing module.

The steering sensor 230 may be a YAW axis sensor. For example, the YAW axis sensor determines whether or not to rotate about the z axis among the x axis as the traveling direction of the vehicle, the y axis to the left of the traveling direction of the vehicle, and the z axis perpendicular to the x axis and the y axis It can be judged.

The control unit 210 can match a plurality of unique identifiers to each of the plurality of module control units when the source of each of the plurality of tire information is grasped.

Referring to FIG. 3, the tire pressure sensing module 120 may communicate with the tire information transmission / reception module 250 (FIG. 3). The tire pressure sensing module 120 of the tire management system of one embodiment includes a pressure sensor 121 for sensing the pressure of the tire, a module controller 123 for sensing changes in pressure information sensed by the pressure sensor 121, A module battery 125 that supplies power to the module control unit 123 and the pressure sensing sensor 121 and a module communication unit 124 that transmits and receives signals to and from the module control unit 123 .

The module battery 125 supplies power to the module control unit 123, the pressure sensor 121, and the module communication unit 124. Since the tire pressure sensing module 120 can not be connected to the electric device of the vehicle by wire, the module battery 125 is the power source of the tire pressure sensing module 120 because the battery itself is required. The module battery 125 senses its own voltage and transmits the sensed voltage value to the module control unit 123. The voltage value of the module battery 125 is included in the tire information and transmitted to the control unit (not shown), thereby allowing the control unit 140 to predict the life of the module battery 125. [

The pressure sensing sensor 121 senses the pressure and / or temperature of the tire 20. The pressure sensing sensor 121 measures the pressure and / or temperature of the tire 20 in various manners to measure the air pressure of the tire 20. The pressure value and / or the temperature value of the tire 20 measured by the pressure sensor 121 is transmitted to the module control unit 123 and converted into an analog signal from a digital signal.

The module communication unit 124 can wirelessly transmit the tire information to the tire information transmission / reception module 250 (Fig. 3). The module communication unit 124 outputs tire information processed by the module control unit 123 as a coded radio frequency (RF) signal.

The tire pressure sensing module 120 can transmit tire information on the pressure of the tire. The module communication unit 124 can transmit the tire information as a wireless signal.

The module control unit 123 may output the tire information including the pressure of the tire. The module control unit 123 can output a unique identifier indicating its own identity in the tire information. The tire pressure sensing module 120 may transmit tire information including a unique identifier.

The module control unit 123 may be a plurality of matching units for a plurality of tires. The unique identifier may be a plurality of identifiers matched to the plurality of module control units 123.

The pressure sensing sensor 121 may be activated periodically. The pressure sensing sensor 121 can sense the pressure of the tire for a predetermined time. The pressure sensing sensor 121 can sense the pressure of the tire by a preset number of times during the activated time.

4 is a graph showing changes in pressure values of a tire according to an embodiment of the present invention.

Referring to FIG. 4, the automobile according to the embodiment may change the pressure of the tire depending on the steering or the speed.

4 is a graph showing changes in pressure of four tires when the steering of the vehicle changes to the left.

When the steering of the vehicle is adjusted to the left, the pressure of the tire in front of the left side of the vehicle can be maximized. For example, as the vehicle is steered to the left, the pressure in the front left tire may gradually increase. The pressure on the tire in front of the left can rise and then decrease again after reaching the maximum.

If the steering of the vehicle is adjusted to the left, the pressure on the left two tires may increase. If the steering of the vehicle is adjusted to the left, the pressure of the right two tires may be reduced.

In contrast to that shown in Fig. 4, when the steering of the vehicle is adjusted to the right, the pressure of the right two tires may increase. If the steering of the vehicle is adjusted to the right, the pressure on the left two tires may be reduced.

When the vehicle speed is constant and the steering of the vehicle is adjusted to the left, the pressure of the front tire of the two left tires may be further changed. When the vehicle speed is constant and the steering of the vehicle is adjusted to the right, the pressure of the front tire of the two right tires may be further changed.

When the steering of the vehicle is adjusted, the two tires on the side where the steering is changed can change the pressure of the tire sooner than the two tires on the opposite side.

The control unit can identify the source of the tire information by matching the change of the steering and the change of the tire pressure based on the change of the pressure value of each tire according to the steering. For example, when the steering angle at the time when the pressure included in the tire information changes to the maximum is left, the tire information whose pressure has been increased to the greatest width among the four pieces of received tire information may correspond to the front left tire .

When the steering angle at the time when the pressure included in the tire information changes to the maximum is left, the tire information whose pressure has increased to the second greatest width among the received four tire information may correspond to the tire on the left rear.

When the steering angle at the time when the pressure included in the tire information changes to the maximum is left, the two pieces of tire information in which the pressure of the tire is decreased among the four pieces of received tire information may correspond to the right two tires.

When the steering angle at the time when the pressure included in the tire information changes to the maximum is left, the tire information of the received four pieces of tire information whose tire pressure has been reduced to the greatest width may correspond to the right rear wheel.

5 is a diagram showing a packet configuration of tire information output by the tire pressure sensing module according to an embodiment of the present invention.

Referring to FIG. 5, the tire information of the embodiment includes a unique identifier, a tire pressure value, a tire temperature value, a module battery pressure value, a variation amount at which the tire pressure changes the maximum, Or a checksum.

The unique identifier is a number indicating the identity of the module control unit itself and may have a size of 32 bits. The pressure value may be a 16-bit value as a value for the pressure of the tire 20 sensed by the pressure sensor 121 and transmitted to the module control unit. The voltage value may be a 16-bit value as a value for the self-voltage sensed by the module battery 121 and transmitted to the pressure sensing controller 123. The temperature value may be a value of 16 bits as a value for the temperature of the tire 20 sensed by the pressure sensor and transmitted to the module control unit. The checksum is a value for checking the integrity of data and may have a size of 8 bits, but it is not limited to the size.

According to the embodiment, the unique identifier, the pressure value, the temperature value, the pressure value of the module battery, the change amount at which the tire pressure changes the maximum, the time point at which the tire pressure changes to the maximum, Either one may be excluded.

The tire information may include a time point at which the pressure value of the tire changes to the maximum. The tire information may include a maximum change amount of the pressure value of the tire.

6 is a flowchart illustrating an operation of a tire pressure sensing system according to an embodiment of the present invention.

Referring to FIG. 6, the control unit 210 may receive tire information from a plurality of tire pressure sensing modules 120FL, 120RL, 120RR, and 120FR, but the order is not limited thereto.

The tire information transmitted by the plurality of tire pressure sensing modules 120FL, 120RL, 120RR, and 120FR may include different unique identifiers. The control unit 210 can identify the source of the tire information corresponding to each of the plurality of tire pressure sensing modules 120FL, 120RL, 120RR, and 120FR by matching the variation of the pressure of the tire with the change of the steering.

The tire information may include a time point when the pressure of the tire changes to the maximum. The tire information may include the number of times the pressure of the tire is sensed at the time when the pressure of the tire changes to the maximum. For example, the pressure sensing sensor can sense the pressure of the tire for a preset number of times during a single active section. The tire information may include the highest pressure value of the tire pressure measured by the pressure sensor during one section. The tire information may include how many of the pressure values of the tire measured during one interval of the pressure sensor are detected in the one section. The maximum change time shown in FIG. 5 may be the number of times the largest pressure value of the tire is sensed in one time period.

It is possible to retrieve the steering information at the time when the pressure of the tire of the control unit 210 has changed to the maximum. The control unit 210 can determine when the tire information is received. The control unit 210 can invert the time point at which the pressure of the tire changes to the maximum from the time when the tire information is received.

For example, when the time when the pressure sensing module 120 is activated is one minute, the pressure of the tire is measured 60 times for one minute, and when the tire information indicates that the largest pressure value among the tire pressure values is 37th The control unit 210 can retrieve the steering information 24 seconds before the time when the tire information is received. This is based on the assumption that the control unit 210 receives the tire information immediately after the module control unit of the tire pressure sensing module outputs the tire information, and the actual time may be slightly different from this.

The automobile of one embodiment may further include a braking device. The braking device may be a device that reduces the speed of the vehicle. When the speed of the automobile decreases, the pressure of the front tire may increase due to inertia. If the speed of the car increases, the pressure of the rear tire may increase.

The control unit 210 can determine the position of the tire provided on the front wheel or the tire pressure sensing module that senses the pressure of the tire provided on the rear wheel by matching the change in speed of the vehicle with the change in pressure of the tire.

7 is a flowchart illustrating a method of controlling a tire pressure sensing system according to an embodiment of the present invention.

Referring to FIG. 7, a method of controlling a tire pressure sensing system according to an embodiment includes sensing a pressure of a tire (S310), sensing a steering of the vehicle (S320), determining a time (S330) of matching the change of the pressure of the tire with the change of the steering of the vehicle (S340), and determining the source of the tire information based on the data according to the matching performed (S350) .

The step of sensing the pressure of the tire (S310) may detect the pressure of the tire by a predetermined number of times per predetermined period.

The step of sensing the steering of the vehicle (S320) may be repeated with a predetermined period. The step of sensing the steering of the vehicle (S320) may occur simultaneously with the sensing of the pressure of the tire (S310), but is not limited thereto.

The step S310 of sensing the pressure of the tire and the step S320 of sensing the steering of the vehicle may be repeated with the same period.

The matching step (S340) can retrieve steering information at a point of time when the pressure of the tire has changed to the maximum. The matching step S340 may reverse the time point at which the pressure of the tire changes to the maximum from the time when the tire information is received.

The method of controlling a tire pressure sensing system of one embodiment may further include sensing a speed of the vehicle. The matching step S340 may match a change in the speed of the vehicle with a change in pressure of the tire. When the change in the speed of the vehicle and the change in pressure of the tire are matched, the tire pressure sensing system can determine whether the tire pressure sensing module transmitting the tire information corresponds to the front tire or the rear tire.

The method of controlling a tire pressure sensing system of one embodiment may further include transmitting and receiving tire information including information on a change in pressure of the tire. The step of transmitting and receiving the tire information (S320) may include the time at which the tire information changes the maximum pressure of the tire. The tire information may include the number of times the pressure of the tire is sensed at the time when the pressure of the tire changes to the maximum.

The present invention is not necessarily limited to these embodiments, as all the constituent elements constituting the embodiment of the present invention have been described as being combined or combined in one operation. Within the scope of the present invention, depending on the embodiment, all of the components may operate selectively in combination with one or more.

All of the components may be implemented as one independent hardware, but a part or all of the components may be selectively combined to provide a computer having a program module that performs some or all of the functions combined in one or a plurality of hardware May be implemented as a program.

A plurality of codes and code segments constituting a computer program may be easily deduced by those skilled in the art. Such a computer program can be stored in a computer-readable storage medium, readable and executed by a computer, thereby realizing an embodiment of the present invention. As the storage medium of the computer program, a magnetic recording medium, an optical recording medium, a carrier wave medium, or the like may be included.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, But should be construed as further including other elements.

All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined.

Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

The embodiments of the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: tire pressure sensing system
10: Wheel
20: Tire
30: Disk
120: Tire Pressure Sensing Module
130: Wheel rotation detection module
140: control unit
150: Tire information transmitting / receiving module

Claims (22)

A plurality of pressure sensors for sensing pressure of a plurality of tires;
A plurality of module control units for outputting tire information including a pressure of the tire;
A steering sensor for sensing the steering of the vehicle; And
And a control unit which receives a plurality of pieces of tire information output by the plurality of module control units and matches a change in steering of the vehicle and a change in pressure of the plurality of tires to obtain a source of the tire information,
Wherein the module control unit further includes a unique identifier indicating its own identity,
The tire information further includes a time point at which the pressure of the tire changes to the maximum,
Wherein the tire information further includes a number of times the pressure of the tire is sensed at a point of time when the pressure of the tire changes to the maximum. The method according to claim 1,
And a memory for accumulating and storing steering information on changes in the steering of the vehicle over time. The method according to claim 1,
Wherein the pressure sensing sensor is activated periodically to sense the pressure of the tire for a predetermined period of time. The method of claim 3,
Wherein the pressure sensing sensor senses the pressure of the tire by a predetermined number of times during an activated time. The method according to claim 1,
Wherein the tire information includes a maximum change amount of a pressure value of the tire. delete The method according to claim 1,
Wherein the steering sensor is activated at the same cycle as the pressure sensor to sense the steering of the vehicle. The method according to claim 1,
The control unit recognizes a source of the tire information by matching a change in the speed of the vehicle with a change in pressure of the tire. delete The method according to claim 1,
Wherein the unique identifier corresponds to each of the plurality of module controllers,
Wherein the control unit matches each of the plurality of unique identifiers to each of the plurality of module control units when the source of the tire information is identified. Sensing pressure of the tire;
Sensing steering of the vehicle;
Determining a time point when the pressure of the tire changes to the maximum;
Matching a change in pressure of the tire with a change in steering of the vehicle; And
And determining a source of the tire information based on the data according to the performed matching,
Wherein the tire information further includes a unique identifier indicating the identity of the tire, the tire information further includes a time point at which the pressure of the tire changes to the maximum,
Wherein the tire information further includes a number of times the pressure of the tire is sensed at a point of time when the pressure of the tire changes to the maximum. 12. The method of claim 11,
Sensing a pressure of the tire,
And the pressure of the tire is sensed by a predetermined number of times per predetermined period. 12. The method of claim 11,
Sensing a steering of the vehicle,
A method of controlling a tire pressure sensing system repeated with a predetermined period. 12. The method of claim 11,
Sensing a pressure of the tire, and sensing a steering of the vehicle, the method comprising repeating the same periodically. 12. The method of claim 11,
Wherein the matching step comprises:
And searching for steering information at a time point when the pressure of the tire changes to the maximum. 12. The method of claim 11,
Wherein the matching step comprises:
Wherein a time point at which the pressure of the tire changes to a maximum from a point of time when the tire information is received is inversed. 12. The method of claim 11,
And detecting the speed of the vehicle. 18. The method of claim 17,
The matching step comprises:
Wherein the change in the speed of the vehicle and the change in pressure of the tire are matched. delete delete delete A braking device for braking the speed of the vehicle;
A plurality of pressure sensors for sensing pressure of a plurality of tires;
A plurality of module control units for outputting tire information including a pressure of the tire;
A steering sensor for sensing the steering of the vehicle; And
A plurality of tire information output by the plurality of module control units is received to identify a source of the tire information by matching a change in steering of the vehicle or a change in speed of the vehicle and a change in pressure of the plurality of tires And a control unit,
Wherein the tire information further includes a unique identifier indicating its own identity,
The tire information further includes a time point at which the pressure of the tire changes to the maximum,
Wherein the tire information further includes a number of times the pressure of the tire is sensed at a point of time when the pressure of the tire changes to the maximum.

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