Tire pressure identification device and vehicle

By using magnetic parts and signal components to identify tire pressure changes in the tire pressure identification device, the problem of insufficient detection accuracy and timeliness in the prior art is solved, and timely reminding and controlling when tire blowout occurs is achieved, and the safety of the vehicle is improved sex.

CN116691237BActive Publication Date: 2025-02-11BYD CO LTD
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Patent Information

Application Number
CN202210182808.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-02-25
Publication Date
2025-02-11
Estimated Expiration
2042-02-25

AI Technical Summary

Technical Problem

The detection accuracy and timeliness of existing tire pressure recognition technology are insufficient, and it is difficult to promptly remind and control dangerous situations such as tire blowouts.

Method used

By using magnetic parts and signal components in the tire pressure recognition device, the pneumatic pressure balance member is used to drive the signal components to generate displacement in the magnetic field, thereby identifying tire pressure changes and generating tire pressure monitoring signals.

Benefits of technology

It realizes timely reminding users when the tire pressure changes in the vehicle and controlling the vehicle, improving the safety of the vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application provides a tire pressure identification device and a vehicle, which are used to connect with a tire, and include a shell, a pressure component and a monitoring component. The shell has a receiving space, at least part of which is used to communicate with the inside of the tire. The pressure component is installed in the receiving space, and the pressure component includes an air pressure balance. The monitoring component is located in the receiving space. The monitoring component includes a magnetic component and a signal component. The magnetic component is installed on the inner wall of the receiving space, and the signal component is installed on the air pressure balance. The air pressure balance is used to drive the signal component to move relative to the magnetic component in the receiving space when the tire pressure changes, so that the signal component generates a tire pressure monitoring signal. The tire pressure identification device and vehicle provided by the present application solve the problem of insufficient monitoring accuracy and timeliness of tire pressure identification by identifying changes in the magnetic field, so as to remind the user when the tire pressure of the vehicle changes, thereby improving the safety of the vehicle.
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Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a tire pressure recognition device and a vehicle. Background Art

[0002] With the popularity of vehicles and the growth of the number of private cars, vehicle safety issues have received more and more attention. Tires are the most important components that affect the stability of vehicle driving and have a key impact on driving safety. Only when the tires have normal tire pressure can the vehicle run smoothly. Too high or too low tire pressure may cause the tire to burst, thus endangering the lives of drivers, passengers and passers-by.

[0003] At present, tire blowout identification is mainly based on direct detection by monitoring units or algorithm estimation methods. The control algorithm estimates whether a tire has blown out through signals such as tire pressure, tire rolling radius and natural frequency. The disadvantage is that the detection accuracy and timeliness are not enough. It is difficult to provide timely reminders and control when dangerous situations such as tire blowout occur. Summary of the invention

[0004] The present application provides a tire pressure identification device and a vehicle, which solves the problems of insufficient monitoring accuracy and timeliness of tire pressure identification by identifying changes in magnetic fields, so as to promptly remind the user when the tire pressure of the vehicle changes, thereby controlling the vehicle and improving the safety of the vehicle.

[0005] In the first aspect, the present application provides a tire pressure identification device for connecting to a tire, comprising a shell, a pressure component and a monitoring component, the shell having a receiving space, at least a portion of which is used to communicate with the interior of the tire, the pressure component is installed in the receiving space, the pressure component includes an air pressure balance component, the monitoring component is located in the receiving space, the monitoring component includes a magnetic component and a signal component, the magnetic component is installed on the inner wall of the receiving space, the signal component is installed on the air pressure balance component, and the air pressure balance component is used to drive the signal component to move relative to the magnetic component in the receiving space when the tire pressure changes, so that the signal component generates a tire pressure monitoring signal.

[0006] In a possible implementation, the signal component includes a signal recognition component and a signal processing component. The signal recognition component interacts with the magnetic component and sends out an electrical signal. The signal processing component receives the electrical signal and converts the electrical signal into the tire pressure monitoring signal before sending it out.

[0007] In a possible implementation, the air pressure balance member includes an elastic member and a movable member, the elastic member and the movable member are arranged and connected along the length direction of the shell, the signal component is mounted on the movable member, and the movable member is used to move or remain stationary relative to the magnetic member under the air pressure of the tire at one end and the pressure of the elastic member at the other end.

[0008] In a possible implementation manner, the elastic member includes an elastic portion and an adjusting portion, the adjusting portion is fixed in the receiving space, and the elastic portion is connected between the adjusting portion and the movable member.

[0009] In a possible implementation manner, the air pressure balance member further includes a sealing ring, which is sleeved on the movable member and is sealingly connected between the movable member and the housing.

[0010] In a possible implementation, the signal recognition component includes a Hall chip.

[0011] In a possible implementation manner, the signal processing component includes a processing circuit, which converts and / or amplifies the electrical signal and converts the electrical signal into a tire pressure monitoring signal.

[0012] In a possible implementation manner, the signal processing component further includes a signal transmission component, and the signal transmission component is used to receive the tire pressure monitoring signal and send it to an external device.

[0013] In a possible implementation manner, the signal transmission component is a radio frequency transmitter or a Bluetooth transmitter.

[0014] In a possible implementation, the monitoring component further includes a power supply, and the power supply supplies power to the signal identification component, the processing circuit, and the signal transmission component.

[0015] In a possible implementation manner, the power source includes a power generation unit, and the power generation unit is used to generate electricity through vehicle movement.

[0016] In a possible implementation manner, the power supply further includes a power storage unit, which stores the electricity generated by the power generation unit.

[0017] In a possible implementation, the power generation unit includes a rotor and a power generation assembly, the rotor is connected to the power generation assembly, the rotor is used to swing through the movement of the vehicle, and the power generation assembly generates electricity through the swing of the rotor.

[0018] In a second aspect, the present application further provides a vehicle, comprising a tire and the tire pressure identification device as described above, wherein the tire comprises an air valve, and the tire pressure identification device is mounted on the air valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.

[0020] Figure 1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;

[0021] Figure 2 is a schematic structural diagram of a tire pressure identification device provided in an embodiment of the present application in a normal state;

[0022] Figure 3 is an exploded schematic diagram of a power supply provided in an embodiment of the present application, including a portion of a housing;

[0023] Figure 4 It is a schematic diagram of the structure of the tower assembly provided in the embodiment of the present application, which includes some monitoring equipment;

[0024] Figure 5 is a schematic structural diagram of a tire pressure identification device provided in an embodiment of the present application in a low tire pressure state;

[0025] Figure 6 It is a schematic diagram of the structure of the tire pressure identification device provided in an embodiment of the present application in a tire blowout state. DETAILED DESCRIPTION

[0026] The specific embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can also be implemented in other ways different from those described herein, and therefore, the present application is not limited to the following embodiments.

[0027] With the popularity of vehicles and the growth of the number of private cars, vehicle safety issues have received more and more attention. Tires are the most important components that affect the stability of vehicle driving and have a key impact on driving safety. Only when the tires have normal tire pressure can the vehicle run smoothly. Too high or too low tire pressure may cause the tire to burst, thus endangering the lives of drivers, passengers and passers-by.

[0028] At present, tire blowout identification is mainly based on direct detection by monitoring units or algorithm estimation methods. The control algorithm estimates whether a tire has blown out through signals such as tire pressure, tire rolling radius and natural frequency. The disadvantage is that the detection accuracy and timeliness are not enough. It is difficult to provide timely reminders and control when dangerous situations such as tire blowout occur.

[0029] Based on this, please refer to Figure 1-Figure 6The present application provides a tire pressure identification device 100 and a vehicle 1000, which solve the problem of insufficient monitoring accuracy and timeliness of tire pressure identification by identifying changes in magnetic fields, so as to promptly remind the user when the tire pressure of the vehicle 1000 changes, thereby controlling the vehicle 1000 and improving the safety of the vehicle 1000.

[0030] See also Figure 1 The vehicle 1000 includes a tire 200 and a tire pressure identification device 100. The tire 200 includes an air nozzle (not shown). The tire pressure identification device 100 is connected to the air nozzle of the tire 200 so that the tire pressure can act on the tire pressure identification device 100, thereby identifying and measuring the tire pressure.

[0031] It should be noted that the tire pressure identification device 100 has no special requirements for the design of the tire 200 and is applicable to all passenger car tires 200 on the market. The device can be docked with the air nozzle of the tire 200, which is plug-and-play and convenient.

[0032] See also Figure 2 The tire pressure identification device 100 includes a housing 10, a pressure component 20 and a monitoring component 30. The housing 10 has a receiving space 12 and an opening 111. The opening 111 is used to connect with the inside of the tire 200, thereby connecting the inside of the tire 200 with the receiving space 12. The pressure component 20 is installed in the receiving space, and the pressure component 20 includes an air pressure balance member 21. The monitoring component 30 is located in the receiving space 12, and includes a magnetic component 31 and a signal component 32. The magnetic component 31 is installed on the inner wall of the receiving space 12, and the signal component 32 is installed on the air pressure balance member 21. The air pressure balance member 21 is used to drive the signal component 32 to move relative to the magnetic component 31 in the receiving space 12 when the air pressure of the tire 200 changes, so that the signal component 32 generates a tire pressure monitoring signal.

[0033] The tire pressure identification device 100 can be fixed on the air valve of the tire 200, and is easy to assemble and disassemble. It utilizes the existing structure of the vehicle, does not require through holes inside and outside the tire 200, and does not require additional modification of the installation structure of the tire 200 or other technical solutions that require modification. With the help of the present invention, the system installation is simplified while ensuring the safety of the vehicle 1000, and a series of problems such as cost, weight, workload, etc. caused by additional installation are solved.

[0034] It should be noted that Figure 2The purpose is only to schematically describe the connection relationship between the housing 10, the pressure assembly 20 and the monitoring assembly 30, and it does not specifically limit the connection position, specific structure and quantity of each device. The structure illustrated in the embodiment of the present application does not constitute a specific limitation on the tire pressure identification device 100. In other embodiments of the present application, the tire pressure identification device 100 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

[0035] The shell 10 may be a cylindrical column, one end of which is closed, and a cylindrical receiving space 12 is formed with the surrounding side. The central axis direction of the column is its length direction, and the direction perpendicular to the length direction is the width direction of the shell 10. One end of the shell 10 is closed to form a part of the appearance of the tire pressure recognition device 100, and the other end of the shell 10 is an opening 111, and the diameter of the opening 111 is smaller than the diameter of the receiving space 12, so that the internal components of the tire pressure recognition device 100 will not fall out of the shell 10. Exemplarily, the shell 10 can be divided into an end 101 and a main body 102, and the end 101 is a closed end of the shell 10, which can be a hemispherical shell, and the main body 102 can be a cylindrical shape with upper and lower openings. The end 101 and the main body 102 can be spliced ​​to form the shell 10. In actual production, the internal components of the tire pressure recognition device 100 can be assembled to the main body 102, and then the end 101 can be spliced ​​to the main body 102, so as to form a complete shell 10. A connecting section 11 is provided at one end of the main body 102 away from the end 101, and an opening 111 passes through the connecting section 11 and is connected to the receiving space 12. The connecting section 11 is used to connect to the air valve of the tire 200, thereby realizing the connection between the receiving space 12 and the inside of the tire 200 through the opening 111.

[0036] It can be understood that the cylindrical shell 10 allows the internal components to slide inside and maintain the sealed connection between the monitoring component 30 and the shell 10. At the same time, the simple shape of the shell 10 is also easy to produce, reducing the production difficulty and production cost of the tire pressure identification device 100.

[0037] Please refer to Figure 2 and Figure 3, the air pressure balance member 21 includes an elastic member 212 and a movable member 211. The elastic member 212 and the movable member 211 are arranged and connected along the length direction of the shell 10. The movable member 211 is used to move or remain stationary relative to the magnetic member 31 under the air pressure of the tire 200 at one end and the pressure of the elastic member 212 at the other end. The elastic member 212 includes an elastic part 2121 and an adjusting part 2122. The adjusting part 2122 is fixed in the receiving space 12, and the elastic part 2121 is connected between the adjusting part 2122 and the movable member 211. The adjusting part 2122 can adjust the pressure of the elastic part 2121 on the movable member 211. The shape of the movable member 211 is similar to that of two coaxial cylinders with different diameters, wherein the cylinder with a larger diameter is located at the end of the movable member 211 away from the opening 111, and is adapted to the shape of the receiving space 12. The cylinder with a smaller diameter is located at the end of the movable member 211 facing the opening 111.

[0038] In a possible embodiment, the elastic part 2121 is a spring, and the adjusting part 2122 includes a base 2122a, a screw 2122b and a connecting seat 2122c. The base 2122a is fixed in the receiving space 12 formed between the end of the movable part 211 away from the opening 111 and the housing 10, the screw 2122b is threadedly connected to the base 2122a, and the connecting seat 2122c is located between the base 2122a and the spring and connected to one end of the screw 2122b. The spring is arranged between the connecting seat 2122c and the movable part 211, and the spring adjusting part 2122 can adjust the position of the connecting seat 2122c by controlling the rotation of the screw 2122b, thereby compressing the spring to adjust the elastic force of the spring.

[0039] In actual use, the adjustment part 2122 can adjust the pressure of the elastic part 2121 on the movable part 211, thereby adjusting the threshold of tire blowout or rapid air leakage. It can be applied to multiple scenarios such as different altitudes (different atmospheric pressure), winter and summer (different tire pressure), etc., and has high reliability.

[0040] The pressure assembly 20 further includes a sealing ring 22, which seals and connects the movable part 211 and the housing 10. The sealing ring 22 is arranged at the periphery of the cylinder with a larger diameter of the movable part 211, and the sealing ring 22 is used to seal and connect the monitoring assembly 30 and the housing 10. After the tire pressure recognition device 100 is connected to the tire, the end of the movable part 211 away from the opening 111 is subjected to the pressure of the pressure assembly 20, and the end facing the opening 111 is subjected to the tire pressure.

[0041] The monitoring component 30 includes a magnetic component 31, a signal component 32 and a power supply 33. The magnetic component 31 can be embedded in the cavity wall of the receiving space 12, and the magnetic component 31 is close to the opening 111. When the tire pressure decreases, the movable part 211 will approach the opening 111, and thus approach the magnetic component 31. The magnetic component 31 can be a magnetic material such as a magnet, and the number of magnets can be one or more. The magnetic component 31 can also be an electromagnetism element that can provide a constant magnetic field. The present application does not limit the type of the magnetic component 31. The signal component 32 is mounted on the movable part 211.

[0042] The signal component 32 includes a signal recognition component 321 and a signal processing component 322. The signal recognition component 321 can be fixed on the side wall of the movable part 211, arranged close to the magnetic part 31, and opposite to the magnetic part 31 in the width direction. When the relative position of the signal recognition component 321 and the magnetic part 31 changes, the signal recognition component 321 can recognize the change of the magnetic field of the magnetic part 31, and convert it into an electrical signal to be transmitted to the signal processing component 322.

[0043] The signal recognition component 321 may be a circuit board component including a Hall element. When the movable part 211 moves relative to the magnetic part 31, the Hall chip on the movable part 211 will accurately sense the change in the magnetic field caused by the position change and output different voltage signals. The Hall sensing measurement method has the advantages of low power consumption, no fear of pollution or corrosion such as water vapor, dust, oil, salt spray, etc., and the Hall element has high reliability, thereby improving the working stability of the tire pressure recognition device 100.

[0044] The signal processing component 322 is installed on the movable part 211, and includes a processing circuit 3221 and a signal transmission component 3222. The processing circuit 3221 converts and / or amplifies the electrical signal transmitted by the signal recognition component 321, and converts the electrical signal into a tire pressure monitoring signal.

[0045] The signal transmission element 3222 is used to receive the tire pressure monitoring signal and send it to the vehicle 1000. The signal transmission element 3222 may include a radio frequency or a Bluetooth transmitter.

[0046] See also Figure 4 The power supply 33 is installed on the movable part 211, and includes a power generation unit 331 and a power storage unit 332. The power generation unit 331 includes a rotor 3311 and a power generation component 3312. The rotor 3311 is connected to the power generation component 3312. The rotor 3311 is used to swing through the movement of the vehicle 1000, and the power generation component 3312 generates electricity by the swing of the rotor 3311. The power storage unit 332 stores the electricity generated by the power generation unit 331. The power supply 33 can supply power to the signal recognition component 321, the processing circuit 3221 and the signal transmission component 3222.

[0047] Exemplarily, the power generation component 3312 may include a driving wheel (not shown) and a motor rotor (not shown), the driving wheel is connected to the rotor 3311 to stop rotation, and the driving wheel can drive the motor rotor to rotate to generate electricity. During the driving process of the vehicle 1000, due to the uneven road surface or driving state, the whole vehicle will bump up and down, and the wheel is rolling. The rotor 3311 swings back and forth through the movement of the vehicle 1000, driving the driving wheel to rotate synchronously in a clockwise or counterclockwise direction, so that the motor rotor rotates to generate electricity. Electric energy can be stored by the power storage unit 332, which solves the energy consumption problem of the power supply 33 of the tire pressure identification device 100. The power supply 33 can also have a power storage digital display. When the internal storage power is insufficient, the driver can be reminded to charge the tire pressure identification device 100 externally. The charging method can be selected as a USB charging port or the like.

[0048] The signal recognition component 321 recognizes the position of the magnetic component 31 and sends out an electrical signal. The signal processing component 322 receives the electrical signal and converts it into a tire pressure monitoring signal before sending it out.

[0049] In actual use, in different scenarios, the elastic force of the elastic part 2121 can be adjusted by the adjustment part 2122, so that the pressure of the elastic part 2121 on one end of the movable part 211 is equal to the tire pressure acting on the other end of the movable part 211, so that the movable part 211 is kept balanced in the housing 10. The power source 33 can generate and store electricity by itself through the movement of the vehicle 1000, and at the same time supply power to the signal recognition component 321, the processing circuit 3221 and the signal transmission component 3222. After the tire pressure identification device 100 is installed on the air valve of the tire, there is still a distance between the movable part 211 and the opening 111, so that when the tire pressure becomes low, the movable part 211 can drive the signal identification component 321 to move in the length direction within the receiving space 12, so that the relative position of the signal identification component 321 and the magnetic component 31 changes in the length direction. The signal identification component 321 outputs an electrical signal through the change of the magnetic field. The processing circuit 3221 is electrically connected to the signal identification component 321, and processes the electrical signal, converts the electrical signal into a tire pressure monitoring signal and sends it to the signal transmission component 3222. The signal transmission component 3222 transmits the tire pressure monitoring signal to the instrument panel of the vehicle 1000 for display, or the signal transmission component transmits the tire pressure monitoring signal to the controller of the vehicle 1000, and the controller takes protective measures based on the tire pressure monitoring signal.

[0050] Please refer to Figure 2, when the tire pressure is normal, the tire pressure identification device 100, after the opening 111 of the tire pressure identification device 100 is sealed and connected to the air nozzle of the tire 200, the tire pressure acts on one end of the movable part 211 close to the opening 111, and the other end of the movable part 211 is connected to the elastic part 212. When the pressure applied by the elastic part 212 to the movable part 211 is the same as the tire pressure, the movable part 211 remains stationary relative to the shell 10, and the relative position of the signal identification component 321 and the magnetic part 31 remains unchanged. The surrounding magnetic field of the Hall element of the signal identification component 321 remains unchanged. At this time, the electrical signal output by the signal identification component 321 remains unchanged, and the processing circuit 3221 processes the electrical signal and transmits the tire pressure signal to the signal transmission component 3222. The signal transmission component 3222 sends the tire pressure signal to the instrument panel of the vehicle 1000 for display.

[0051] See also Figure 5 In the case of a leak in the tire 200, the tire 200 changes to a low-pressure tire state, and at this time, the pressures at both ends of the movable member 211 are different. The pressure applied by the elastic member 212 to the movable member 211 is greater than the tire pressure. At this time, the movable member 211 moves toward the opening 111 in the length direction, and the pressures at both ends of the movable member 211 are balanced again when there is still a certain distance between the movable member 211 and the opening 111 of the housing 10. Since the relative position of the signal recognition component 321 and the magnetic member 31 changes, the magnetic field around the Hall element changes. At this time, the electrical signal output by the signal recognition component 321 changes. The processing circuit 3221 processes the changed electrical signal and transmits the tire pressure monitoring signal to the signal transmission member 3222. The signal transmission member 3222 sends the tire pressure monitoring signal of the low tire pressure to the instrument panel of the vehicle 1000 for display.

[0052] See also Figure 6 In the case of a tire 200 blowout, the tire pressure of the tire 200 changes dramatically and finally reaches zero tire pressure. At this time, there is a large difference in pressure at both ends of the movable member 211. When the tire pressure is too low, the tire 200 is more likely to blowout due to improper use. The movable member 211 moves toward the opening 111 of the housing 10 under the action of the large pressure of the elastic member 212, until the distance between the signal recognition component 321 and the magnetic member 31 is less than the set safety value, or the degree of change of the magnetic field around the signal recognition component 321 is greater than the set safety value. The signal recognition component 321 converts the degree of change of the magnetic field into an electrical signal, the processing circuit 3221 receives the electrical signal and converts it into a tire pressure monitoring signal, and the signal transmission member 3222 receives the tire pressure monitoring signal and sends it to the controller or instrument panel of the vehicle 1000. After receiving the tire blowout signal, the controller promptly initiates the safety measures.

[0053] When the ambient temperature is high in summer, it is easy to cause the tire pressure inside the tire 200 to be too high, and the movable part 211 will move away from the opening 111. The relative position of the signal recognition component 321 and the magnetic component 31 changes, causing the magnetic field around the Hall element to change. At this time, the electrical signal output by the signal recognition component 321 changes. The processing circuit 3221 processes the changed electrical signal and transmits the tire pressure signal to the signal transmission component 3222. The signal transmission component 3222 sends the tire blowout signal to the instrument panel of the vehicle 1000 for display, or sends the tire blowout signal to the tire blowout stability control system of the vehicle 1000. When the tire blowout stability control system receives the signal, it will take stability control measures in time to avoid the dangers of yaw and instability of the vehicle 1000 due to the tire blowout.

[0054] It should be noted that the processing circuit 3221 can convert and / or amplify the electrical signal sent by the signal recognition component 321, and convert it into a tire pressure signal or a tire blowout signal according to the degree of change of the electrical signal. The tire pressure change rate can be calculated based on the tire pressure signal. If the tire pressure change rate exceeds a certain threshold, it can be considered that a tire blowout has occurred.

[0055] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A tire pressure identification device, used to connect with a tire, characterized in that: include: A shell, the shell having a receiving space, the shell being provided with an opening, the receiving space being in communication with the opening, the opening being used to be connected with the tire so that at least a portion of the receiving space is in communication with the interior of the tire; A pressure assembly is installed in the receiving space, the pressure assembly includes an elastic member and a movable member, the elastic member and the movable member are arranged and connected along the length direction of the shell, the movable member is slidably connected to the shell, the elastic member is located on the side of the movable member away from the opening, the space of the movable member facing the opening is used to communicate with the inside of the tire, the movable member is used to move or remain still relative to the magnetic member under the air pressure of the tire at one end and the elastic force of the elastic member at the other end, the elastic member includes an elastic part and an adjusting part, the adjusting part is fixed in the receiving space, the elastic part is connected between the adjusting part and the movable member, and the adjusting part is used to adjust the pressure of the elastic part on the movable member; A monitoring component, the monitoring component is located in the receiving space, the monitoring component includes a magnetic component, a signal component and a power supply, the magnetic component is mounted on the inner wall of the receiving space, the signal component and the power supply are mounted on the movable component, the power supply supplies power to the signal component, and the movable component is used to drive the signal component to move relative to the magnetic component in the receiving space when the tire pressure changes, so that the signal component generates a tire pressure monitoring signal. The power supply includes a power generation unit and a power storage unit, the power generation unit is used to generate electricity through the movement of the vehicle, and the power storage unit stores the electricity generated by the power generation unit. The power generation unit includes a rotor and a power generation component, the rotor is connected to the power generation component, the rotor is used to swing through the movement of the vehicle, and the power generation component generates electricity through the swing of the rotor.

2. The tire pressure recognition device according to claim 1, characterized in that: The signal component includes a signal recognition component and a signal processing component. The signal recognition component interacts with the magnetic component and sends out an electrical signal. The signal processing component receives the electrical signal and converts the electrical signal into the tire pressure monitoring signal before sending it out.

3. The tire pressure recognition device according to claim 2, characterized in that: The pressure assembly further comprises a sealing ring, which is sleeved on the movable part and is sealingly connected between the movable part and the housing.

4. The tire pressure recognition device according to claim 2, characterized in that: The signal recognition component includes a Hall chip.

5. The tire pressure recognition device according to claim 4, characterized in that: The signal processing component includes a processing circuit, which converts and / or amplifies the electrical signal and converts the electrical signal into a tire pressure monitoring signal.

6. The tire pressure recognition device according to claim 5, characterized in that: The signal processing component also includes a signal transmission component, which is used to receive the tire pressure monitoring signal and send it to an external device.

7. The tire pressure recognition device according to claim 6, characterized in that: The signal transmission element is a radio frequency transmitter or a Bluetooth transmitter.

8. The tire pressure recognition device according to any one of claims 6 or 7, characterized in that: The power source supplies power to the signal identification component, the processing circuit and the signal transmission component.

9. A vehicle, characterized in that: It comprises a tire and a tire pressure identification device as described in any one of claims 1 to 8, wherein the tire comprises an air valve, and the tire pressure identification device is installed on the air valve.

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