JP5409765B2 - Tire pressure gauge and measuring method thereof - Google Patents

Description

  The tire pressure gauge and its measurement method report tire information through the vehicle acoustic module, and automatically report the position and air pressure of the tire when inflating the tire, and at the same time display the video screen and convey it by voice, It can correct errors directly and detect and notify the failure of tire pressure measurement module.

  Whether the tire pressure of the vehicle is normal is related to the safety of traveling. Therefore, each automobile manufacturer has selected an air pressure meter as an important deployed item when traveling. However, each manufacturer's combination method is different, very complicated or relatively simple, and the tire replacement engineer cannot understand the combination method and cannot operate it properly. is there. If the combination is not good when changing tires, an error will occur in the display of air pressure.

  Furthermore, the display of tire pressure serves the purpose of warning the driver when the air pressure is abnormal by monitoring the inside of the vehicle, but it cannot be used as a reference for the pressure injected when air is injected. It is a kind of situation that exists universally. In the tire measurement devices of Patent Document 1 and Patent Document 2 shown in FIG. 1, the tire measurement device 9 includes a main body 91, a tire pressure measurement module 92, and a controller 93. The main body 91 includes a CPU control system 911, a radio signal receiver 912, and an audio broadcaster 913. The tire pressure measurement module 92 includes a measuring device 921, a high-frequency radio transmitter 922, and a low-frequency radio transmitter 923. And a battery 924 are installed. The result obtained by detecting the tire flows to the outside by an audio system by the audio broadcasting device 913 in the main body 91, and the driver can operate the installed controller 93 at any time. Through the operation of the controller 93, the audio broadcasting device 913 of the main body 91 reports the measurement result of the tire that is performed as needed, and when the tire measuring device has already failed due to the forced audio broadcasting mechanism and cannot perform the broadcasting function, Misunderstanding that the measurement result is normal and preventing the safety of driving. In addition, the forced activation of the audio broadcasting mechanism of the measuring device 9 may be activated at a fixed time or by the driver, which may cause a great drawback. That is, when air is injected into a vehicle tire, the measurement and tire pressure information are delayed, and only when the vehicle is already running on the road, the measurement device 9 knows that the tire pressure is insufficient, or the driver measures the measurement device. If you forget to activate 9, you may run into a potential danger.

US Patent Publication No. 2011 / 0205046A1 Specification Taiwan Patent Publication No. 201177661

  The inventor of the present plan has researched and developed a tire pressure gauge and a measuring method thereof in view of the above-described problems. That is, an object of the present invention is to provide a tire pressure gauge and a measuring method thereof, which automatically reports the position and air pressure of the tire when inflating the tire, and at the same time, reports on the video screen and sound. This is done by correcting the error directly and detecting and notifying the failure of the tire pressure measurement module. The feature of the present invention is that the vehicle acoustic module automatically displays when air is injected into the tire, and transmits the position and air pressure of the tire from at least one speaker by voice. Secondly, the user can confirm whether or not the wearer has been correctly worn, and exerts an effect of calling attention. In addition, if the user notices that there has been a report error in the position of the tire or that an unknown tire has been reported, the correction can be made directly from the monitor screen of the vehicle acoustic module. The present invention solves the disadvantage that the position of the tire cannot be reported at the same time in the prior art and cannot be immediately corrected on the monitor when an information error occurs.

In order to achieve the above-described object of the present invention, a tire pressure gauge of the present invention includes a main body module, a plurality of tire pressure measurement modules, and a vehicle acoustic module.
Among them, a plurality of tire pressure measurement modules measure tire pressure and report measurement information of tire pressure and position. The measurement information is a numerical signal of tire air pressure and position.
The body module includes a central processing unit and a receiver. The receiver is connected to the central processing unit and receives measurement information reports from a plurality of tire pressure measurement modules. The central processing unit is connected to the receiver, processes measurement information from the plurality of tire pressure measurement modules received by the receiver, and outputs the measurement information reported by the plurality of tire pressure measurement modules in association with each other.
The vehicle acoustic module is connected to the central processing unit, and the vehicle acoustic module converts the measurement information reported by the plurality of tire pressure measurement modules into screen information, and displays the screen information through the monitor. In addition, the measurement information reported by the plurality of tire pressure measurement modules is converted to generate voice information, and the voice information is transmitted through at least one speaker.
When the components are assembled and air is injected into the tire, the tire pressure measurement module automatically reports the tire position and pressure, and the vehicle acoustic module reports the tire pressure and position by voice. At that time, if there is an error in the position of the tire or the tire is unknown, the user can directly correct it with the monitor of the vehicle acoustic module. If there is no report, it is possible to know the failure of the tire pressure measurement module, and it is effective for alerting the user.

The tire pressure measurement module further includes a wireless transmitter. It transmits measurement information to the main module in a wireless manner.
The receiver is a wireless receiver for receiving measurement information from a plurality of tire pressure measuring modules transmitted by the wireless transmitter.

The tire pressure measuring module further includes a temperature measuring device, and is for measuring a temperature value of the tire.
The receiver further connects an ACC power source and receives an ACC power source off signal, and the central processing unit turns off the main module after one set time after receiving the ACC power source off signal.

  The vehicle acoustic module is further used to connect a door open detection module to detect the door open state. The door open detection module is a tire whose pressure rises when the door open state exceeds a set time. The position is automatically corrected to the relative position of the door.

According to the tire pressure measuring method of the present invention, a measurement result is reported to a user using a video screen and sound through measurement of a tire pressure gauge and report of information. The tire pressure gauge includes a main body module, a plurality of tire pressure measurement modules, and a vehicle acoustic module. The tire pressure gauge measuring method includes at least the following steps.
(A) Air pressure measurement by a tire air pressure measurement module. When the tire pressure measurement module detects a change in the air pressure, the measurement information of the air pressure and the tire position is transmitted, and the process proceeds to Step B.
(B) Determination of the measurement information by the main body module. The receiver receives the air pressure measurement information of the tire air pressure measurement module and determines the speed of the air pressure rise. If the air pressure increase rate is smaller than the set value, the air pressure may have increased due to temperature rise. The main body module returns to step A without transmitting the air pressure measurement information of the tire air pressure measurement module. If the air pressure increase rate is larger than the set value, the main body module transmits the air pressure measurement information of the tire air pressure measurement module, and proceeds to Step C.
(C) Conversion of measurement information by the vehicle acoustic module. The vehicle acoustic module receives the tire pressure measurement information of the tire pressure measurement module transmitted from the main body module, converts the measurement information reported from the plurality of tire pressure measurement modules into screen information and audio information, and proceeds to Step D. To do.
(D) Transmission of measurement information by the vehicle acoustic module. Audio information of air pressure and tire position is sent from the speaker of the vehicle acoustic module, and screen information of air pressure and tire position is displayed on the monitor of the vehicle acoustic module. If there is an abnormality in the air pressure, a warning sound is sounded to alert the user. If there is an error in the position of the tire or the tire information is unknown, the user can correct or input it by directly pressing the monitor of the vehicle acoustic module.

  The tire pressure gauge and its measurement method of the present invention report tire information through a vehicle acoustic module, and automatically report the position and air pressure of the tire when the air is injected into the tire, and at the same time display a video screen and sound. The error can be directly corrected and the effect of detecting and notifying the failure of the tire pressure measurement module can be achieved.

It is a block diagram of a well-known system. 1 is a block diagram of a system according to a first embodiment of the present invention. It is a block diagram of the system about the 2nd example of the present invention. It is a block diagram of the system about the 3rd example of the present invention. It is a block diagram of the system about the 4th example of the present invention. It is a block diagram of the system about the 5th example of the present invention. It is a step flow of the measuring method of the present invention.

As shown in FIG. 2, the first embodiment of the present invention includes a main body module 1, a plurality of tire air pressure measurement modules 2, and a vehicle acoustic module 3.
Among them, the plurality of tire air pressure measuring modules 2 measure the air pressure of the tire and report measurement information of the tire air pressure and position. The measurement information is a numerical signal of tire air pressure and position.
The main body module 1 includes a central processing unit 11 and a receiver 12. The receiver 12 is connected to the central processing unit 11 and receives measurement information reported from the plurality of tire pressure measurement modules 2. The central processing unit 11 is connected to the receiver 12, processes measurement information from the plurality of tire pressure measurement modules 2 received by the receiver 12, and corresponds to measurement information reported by the plurality of tire pressure measurement modules 2. To output.
The vehicle acoustic module 3 is connected to the central processing unit 11, and the vehicle acoustic module 3 converts the measurement information reported by the plurality of tire air pressure measurement modules 2 into screen information and displays the screen information through the monitor 31. In addition, the measurement information reported by the plurality of tire pressure measurement modules 2 is converted to generate sound information, and the sound information is transmitted through at least one speaker 32.
When the components are assembled and air is injected into the tire, the tire pressure measurement module 2 automatically reports the tire position and pressure, and the vehicle acoustic module 3 reports the tire pressure and position by voice. To do. At that time, if the tire position is incorrect or the tire is unknown, for example, the user injects air into the right front wheel of the car, but the tire pressure measurement module 2 reports that the right rear wheel and air pressure If there is, the user can directly correct with the monitor 31 of the vehicle acoustic module 3. If there is no report, the failure of the tire pressure measurement module 2 can be known, and the effect of calling attention to the user is exhibited.

  The monitor 31 includes a correction key 33. The user can directly correct the error by pressing the correction key 33 on the monitor 31. After pushing the wrong tire in the monitor 31 again, it moves to the right tire and corrects the error by exchanging the two tire positions. For example, when the user injects air into the right front wheel of the car and the tire pressure measurement module 2 reports that the right rear wheel and air pressure, the user presses the right rear wheel in the monitor 31 again, and then the right rear wheel. Move the wheel to the right front wheel and swap the two tire positions.

  In the second embodiment of the present invention shown in FIG. 3, the tire pressure measuring module 2 further includes a wireless transmitter 21. It transmits measurement information to the main module 1 in a wireless manner. In order to receive the information, the receiver is a wireless receiver 12 ′, and the wireless receiver 12 ′ is used to receive measurement information from a plurality of tire pressure measurement modules 2 transmitted by the wireless transmitter 21. To do.

  In addition, changes in tire temperature also affect driving safety. Therefore, in the third embodiment of the present invention (see FIG. 4), the tire pressure measuring module 2 further includes a temperature measuring device 22, and transmits the measured tire temperature value to the main body module 1, thereby the tire temperature. Control.

In the fourth embodiment of the present invention shown in FIG. 5, the ACC power supply 5 is further connected to the receiver 12 to receive the ACC power supply 5 off signal (ACC off), and the central processing unit 11 After receiving the off signal, the main module 1 is turned off after a set time (about 30 minutes). In general, an electronic device on a vehicle does not wear power of a battery on the vehicle when the vehicle is stopped. Therefore, the power is normally turned off when the ACC is off. The same applies to general tire pressure gauges. However, in general, when the driver injects air into the tire, usually the vehicle is stopped and the engine is turned off, and the ACC is in the off state.
Since the present invention is set to turn off the main body module 1 after a certain period of time has elapsed after turning off the engine (ACC off), immediately after inflating the tire after turning off the engine (ACC off), The receiver 12 receives the measurement information of the tire pressure measurement module 2 and the activation information is transmitted by the central processing unit 11. Upon receipt of the activation information, the vehicle acoustic module 3 activates the vehicle acoustic module 3 from the originally OFF state, and switches the display screen of the monitor 31 to the tire pressure display screen. The vehicle acoustic module 3 converts the measurement information reported from the plurality of tire pressure measurement modules 2 into voice information, and passes the voice information (that is, the tire pressure value and position) through the speaker 32. The vehicle acoustic module 3 converts the measurement information reported from the plurality of tire pressure measurement modules 2 into screen information, and displays the screen information of the tire pressure and position on the monitor 31. If there is an error in the position of the tire or if an unknown tire is displayed, for example, the user is inflating the right front wheel of the car, but the tire pressure measurement module 2 reports that the right rear wheel and air pressure In this case, the user can make correction by directly pressing the monitor 31 of the vehicle acoustic module 3 or pressing the correction key 33. After pushing the right rear wheel of the monitor 31 again, the right rear wheel is moved to the right front wheel, the tire positions of both are changed, and the tire position is corrected. If there is no report, the failure of the tire pressure measurement module 2 can be known, and the effect of calling attention to the user is exhibited.

  In the fifth embodiment of the present invention shown in FIG. 6, the vehicle acoustic module 3 is further connected to a door open detection module 4. When inflating the tire, opening the door near the tire allows you to clearly hear the tire pressure generated by the sound inside the car, which helps to inject the correct air pressure. In addition, the tire pressure gauge helps to identify the position of the tire at which the air pressure has increased, and even if the tire at the position stored by the automatic adjustment system is replaced, it is not necessary to set the position of the tire again. Since the tire position setting method of various tire pressure gauges is different and there is no unified method, tire changers are usually not familiar with electronic devices, it is difficult to set the tire position accurately and tire abnormalities are Even if a warning occurs, the tire position cannot be provided accurately. The door open detection module 4 is used to detect a state in which the door is opened. The door open detection module 4 is a tire whose pressure has increased when the door has been open for more than one set time (for example, 5 seconds). The position is automatically corrected to the relative position of the door. This is because the sound that conveys the tire air pressure is from the vehicle acoustic module 3, and sounds from the speaker 32 of the vehicle acoustic module 3. Since no sound can be heard outside the vehicle when the door is closed, the air injector opens the closest door of the tire, and thus which door opens is injecting into which tire. For example, when reporting an increase in air pressure at the left rear wheel, if the right front door opens and the set time is exceeded, the left rear wheel is automatically changed to the right front wheel, and then the increase in air pressure at the right front wheel is communicated by voice. .

The tire pressure measuring method of the present invention shown in FIG. 7 notifies the user of the measurement result using a video screen and sound through measurement of a tire pressure gauge and reporting of information. The tire pressure gauge includes a main body module 1, a plurality of tire pressure measurement modules 2, and a vehicle acoustic module 3. The measurement method of the tire pressure gauge includes at least the following steps.
(A) Air pressure measurement by the tire air pressure measurement module 2. When the tire air pressure measurement module 2 detects a change in air pressure, the measurement information of the air pressure and the tire position is transmitted, and the process proceeds to Step B.
(B) Determination of the measurement information by the main body module 1. The receiver 12 receives the air pressure measurement information of the tire air pressure measurement module 2 and determines the speed of the air pressure increase. If the air pressure increase rate is smaller than the set value, the air pressure may have increased due to temperature rise. The main body module 1 returns to step A without transmitting the air pressure measurement information of the tire air pressure measurement module 2. When the air pressure increase rate is larger than the set value, the main body module 1 transmits the air pressure measurement information of the tire air pressure measurement module 2 and proceeds to Step C.
(C) Conversion of measurement information by the vehicle acoustic module 3. The vehicle acoustic module 3 receives the tire pressure measurement information of the tire pressure measurement module 2 transmitted from the main body module 1, converts the measurement information reported from the plurality of tire pressure measurement modules 2 into screen information and audio information, Move to step D.
(D) Transmission of measurement information by the vehicle acoustic module 3. The sound information of the air pressure and the tire position is sent from the speaker 32 of the vehicle acoustic module 3, and the screen information of the air pressure and the tire position is displayed on the monitor 31 of the vehicle acoustic module 3. If there is an abnormality in the air pressure, a warning sound is sounded to alert the user. If there is an error in the position of the tire or the information on the unknown tire, the user can correct it by directly pressing the monitor 31 of the vehicle acoustic module 3.

  In Step A of the air pressure measurement method of the present invention, if there is no report even if the user injects air into the tire (for example, the right front wheel), the user can know the failure of the tire air pressure measurement module 2. , Function to alert the user.

  In step D in the air pressure measurement method of the present invention, the vehicle acoustic module 3 and the door open detection module 4 are connected. When the door open detection module 4 detects that the open state of the door exceeds one set time (for example, 5 seconds), the door position is automatically corrected to the relative position of the door. For example, when reporting an increase in air pressure of the left rear wheel, if the right front door opens and the set time is exceeded, the left rear wheel is automatically changed to the right front wheel, and then an increase in the air pressure of the right front wheel is reported by voice.

  In step B in the air pressure measurement method of the present invention, the receiver 12 of the main body module 1 is further connected to the ACC power source 5 and receives an off signal of the ACC power source 5. Further, after the central processing unit 11 receives the ACC power supply 5 off signal, the main module 1 is turned off after one set time has elapsed.

  In step B in the air pressure measurement method of the present invention, the receiver 12 of the main body module 1 is further connected to the ACC power source 5 and receives an off signal of the ACC power source 5. Further, after the central processing unit 11 receives the ACC power supply 5 off signal, the main module 1 is turned off after one set time has elapsed. The receiver 12 receives the pressure measurement information of the tire pressure measurement module 2, and the activation information is transmitted by the central processing unit 11. Upon receipt of the activation information, the vehicle acoustic module 3 activates the vehicle acoustic module 3 from the power-off state and switches the display screen of the monitor 31 to the air pressure display screen.

  In step D in the air pressure measurement method of the present invention, the monitor 31 includes a correction key 33. The user can directly correct the error by pressing the correction key 33 on the monitor 31. After pushing the wrong tire in the monitor 31 again, it moves to the right tire and corrects the error by exchanging the two tire positions. For example, when the user injects air into the right front wheel of the car and the tire pressure measurement module 2 reports that the right rear wheel and air pressure, the user presses the right rear wheel in the monitor 31 again, and then the right rear wheel. Move the wheel to the right front wheel and swap the two tire positions.

DESCRIPTION OF SYMBOLS 1 Main body module 11 Central processing unit 12 Receiver 12 'Wireless receiver 2 Tire pressure measuring module 21 Wireless transmitter 22 Temperature measuring device 3 Vehicle acoustic module 31 Monitor 32 Speaker 33 Correction key 4 Door open detection module 5 ACC (accessory) Power supply A Step A
B Step B
C Step C
D Step D
DESCRIPTION OF SYMBOLS 9 Measuring apparatus 91 Main body 911 CPU (central processing unit) control system 912 Radio signal receiver 913 Audio broadcasting machine 92 Tire pressure measurement module 921 Measuring instrument 922 High frequency wireless transmitter 923 Low frequency wireless transmitter 924 Battery 93 Controller

Claims (6)

The tire pressure measuring method is a method of notifying the user of the measurement result using a video screen and sound through measurement of the tire pressure gauge and reporting of the information. The tire pressure gauge includes a main body module and a plurality of tire pressure measurements. Module and vehicle acoustic module,
  In the measurement method of the tire pressure gauge,
(A) It is an air pressure measurement by the tire air pressure measurement module, and when the tire air pressure measurement module detects a change in the air pressure of the tire, the measurement information of the air pressure and the tire position is transmitted, and the process proceeds to Step B.
(B) The measurement information determination by the main body module. The main body module receives the measurement information of the air pressure of the tire air pressure measurement module at the receiver, determines the speed of the air pressure increase, and the speed of the air pressure increase is greater than the set value. If it is smaller, the main body module returns to step A without transmitting the air pressure measurement information of the tire air pressure measurement module, and if the increase speed of the air pressure is larger than the set value, the main body module detects the air pressure measurement information of the tire air pressure measurement module. , Move to step C,
(C) Measurement information conversion by the vehicle acoustic module. The vehicle acoustic module receives the pressure measurement information of the tire pressure measurement module transmitted from the main body module, and the measurement information reported from the plurality of tire pressure measurement modules. Is converted to screen information and audio information, and the process proceeds to Step D.
(D) Measurement information transmission by the vehicle acoustic module, audio information of air pressure and tire position is sent from the speaker of the vehicle acoustic module, and screen information of air pressure and tire position is displayed on the monitor of the vehicle acoustic module. If there is an abnormality in the air pressure, an alarm is sounded to alert the user. If the tire position is incorrect or the tire information is unknown, the user can directly press the monitor on the vehicle acoustic module. Can be corrected,
  A method for measuring tire air pressure, comprising at least a step. 2. The tire pressure measuring method according to claim 1, wherein, in step A, if there is no report even if the user injects air into the tire, the user knows that the tire pressure measuring module has failed, and the user is alerted. A tire pressure measuring method characterized by fulfilling a function of prompting. 2. The tire pressure measuring method according to claim 1, wherein in step D, the vehicle acoustic module is connected to a door open detection module, and the door open detection module is in a state in which the door is open for a set time. When the vehicle pressure is detected, the tire pressure is displayed at the tire position corresponding to the door on the monitor of the vehicle acoustic module. 2. The tire pressure measuring method according to claim 1, wherein in step B, the receiver of the main body module is further connected to an ACC power source to receive an ACC power source off signal, and the central processing unit receives an ACC power source off signal. A method for measuring tire air pressure, wherein the main body module is turned off after a set time has elapsed after reception. 2. The tire pressure measuring method according to claim 1, wherein in step B, the receiver of the main body module is further connected to an ACC power source to receive an ACC power source off signal, and the central processing unit receives an ACC power source off signal. After receiving a set time, the main module is turned off, the receiver receives the pressure measurement information of the tire pressure measurement module, the activation information is transmitted by the central processing unit, and the vehicle acoustic module receives the activation information. Then, the tire pressure measuring method is characterized in that the vehicle acoustic module is originally activated from the POWER OFF state, and the monitor display screen is switched to the air pressure display screen. 2. The tire pressure measuring method according to claim 1, wherein in the step D, the monitor includes a correction key, and the user can directly correct the error by pressing the correction key on the monitor, and correct after pressing the wrong tire in the monitor again. A method for measuring tire air pressure, which moves to a tire and corrects an error by exchanging two tire positions.

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