Tire pressure adjustment system and method, storage medium, and electronic device

Abstract

The application discloses a tire pressure adjusting system and method, a storage medium and an electronic device. The system comprises: a gas tank, which is installed on a vehicle body; an outer ring air channel, which is arranged in a bearing outer ring and one end of which is connected with the gas tank; a moving part air channel, which is arranged in a bearing inner ring and a rim and one end of which is communicated with the outer ring air channel and the other end of which is communicated with an air cavity formed by a tire and an outer surface of the rim; a first sealing element, which is arranged at a connection position of the outer ring air channel and the moving part air channel; and a gas filling control valve, which is installed between the gas tank and the outer ring air channel and is used for controlling on-off connection of the gas tank and the outer ring air channel. The outer ring air channel and the moving part air channel are arranged, the gas tank is connected with the outer ring air channel through the gas filling control valve, and automatic gas filling of the tire is realized to adjust the air pressure.

Description

Technical Field

[0001] This application relates to the field of tire pressure management technology, and in particular to a tire pressure regulation system and method, storage medium and electronic device. Background Technology

[0002] Car tires are prone to natural leaks, typically 10-20 kPa of air per month. Low tire pressure poses a risk of blowout, requiring regular manual inflation using an external air source. Currently, tire pressure monitoring systems can only alert the user when pressure is too low; they cannot automatically inflate or adjust tire pressure in real time. Tire pressure management still requires user intervention and cannot be automated. Summary of the Invention

[0003] The purpose of this application is to overcome the shortcomings of existing tire pressure management technologies that require user participation and affect user experience, and to provide a tire pressure regulation system and method, storage medium and electronic device that can automatically regulate tire pressure.

[0004] The technical solution of this application provides a tire pressure regulation system, including:

[0005] A gas tank, which is mounted on the vehicle body;

[0006] An outer ring air passage is provided in the outer ring of the bearing, and one end of the outer ring air passage is connected to the air tank;

[0007] The moving air passage is disposed in the inner ring of the bearing and the rim. One end of the moving air passage is connected to the outer ring air passage, and the other end is connected to the air cavity formed by the outer surface of the tire and the rim.

[0008] A first seal is disposed at the connection between the outer ring air passage and the moving part air passage;

[0009] An inflation control valve is installed between the gas tank and the outer ring air passage to control the connection and disconnection between the gas tank and the outer ring air passage.

[0010] Furthermore, the moving air passage includes:

[0011] An inner ring air passage is provided in the inner ring of the bearing, and one end of the inner ring air passage is connected to the outer ring air passage. The first seal is provided at the connection between the inner ring air passage and the outer ring air passage.

[0012] A rim air passage is provided in the rim, one end of which is connected to the inner ring air passage, and the other end is connected to the air chamber;

[0013] A second seal is connected between the rim air passage and the inner ring air passage.

[0014] Furthermore, the inner airway includes:

[0015] A connecting air groove is formed on the outer circumferential surface of the inner ring of the bearing. The first seal is installed on both sides of the connecting air groove. The inner circumferential surface of the outer ring of the bearing is in close contact with the outer circumferential surface of the inner ring of the bearing and the first seal to seal the connecting air groove. The outer ring air passage is connected to the connecting air groove.

[0016] An embedded air passage is provided along the axial direction of the inner ring of the bearing, with one end connected to the connecting air groove and the other end connected to the rim air passage.

[0017] Further, the first seal includes:

[0018] An air seal is provided on each side of the connecting air groove;

[0019] An oil seal is provided on each of the two gas seals on the side opposite to the connecting gas groove, and an oil seal cavity filled with grease is formed between the oil seal and the gas seal.

[0020] Furthermore, the gas seal includes:

[0021] An inner retaining ring, the inner retaining ring including an inner ring support ring and an inner ring lip, the inner ring lip being connected to the radially outer side of the inner ring support ring;

[0022] An outer retaining ring is installed radially outside the inner retaining ring and includes an outer ring support ring and an outer ring lip. The outer ring lip is connected to the radially inner side of the outer ring support ring, and the outer ring lip is partially installed on the side of the inner ring lip facing the connecting air groove, forming a pressure relief channel between the outer ring lip and the inner ring lip, connecting the connecting air groove and the oil seal cavity.

[0023] Furthermore, a connecting groove is provided at one end of the inner ring air passage that connects to the rim air passage, and a step is formed between the inner sidewall of the connecting groove and the inner sidewall of the inner ring air passage.

[0024] A sealing ring gasket is installed on the stepped portion. One end of the second sealing member is threadedly connected to the air passage of the rim, and the other end extends into the connecting groove and abuts against the sealing ring gasket.

[0025] The second seal has an axially penetrating cavity to connect the rim air passage and the inner ring air passage.

[0026] Furthermore, the rim includes a rim axle, a rim body, and spokes connecting the rim axle and the rim body;

[0027] The rim air passage includes:

[0028] A shaft air passage is provided in the rim shaft, one end of the shaft air passage is connected to the inner ring air passage, and the other end extends to the outer surface of the rim shaft;

[0029] The main air passage is disposed in the rim body and extends through the inner and outer surfaces of the rim body;

[0030] An external air passage is installed along the surface of the wheel spoke. One end of the external air passage is connected to the end of the shaft air passage extending to the outer surface of the wheel rim shaft through a third seal, and the other end is connected to the end of the main air passage located on the inner surface of the wheel rim body through a one-way valve.

[0031] Furthermore, the tire pressure regulation system also includes:

[0032] A venting device is installed in the wheel rim, with its inlet end extending into the air chamber;

[0033] A tire pressure monitoring device, which is installed in the wheel rim, is used to detect tire pressure;

[0034] A control device, which is communicatively connected to the inflation control valve, the deflation device, and the tire pressure detection device.

[0035] The technical solution of this application also provides a tire pressure regulation method for the aforementioned tire pressure regulation system, including...

[0036] In response to vehicle driving signals, the first real-time tire pressure of each tire is obtained after a preset time period;

[0037] If the first real-time tire pressure is less than the first tire pressure threshold, then

[0038] The inflation control valve is opened to inflate the tire until the first real-time tire pressure is greater than or equal to the first tire pressure threshold, at which point the inflation control valve is closed.

[0039] Furthermore, tire pressure regulation methods also include

[0040] During vehicle operation, the vehicle's real-time location and speed are obtained.

[0041] If the vehicle is on a highway and the real-time vehicle speed is greater than the first vehicle speed threshold, then the second real-time tire pressure of each tire is obtained.

[0042] If the second real-time tire pressure is less than the second tire pressure threshold, and the second tire pressure threshold is greater than the first tire pressure threshold, then

[0043] The inflation control valve is opened to inflate the tire until the second real-time tire pressure is greater than or equal to the second tire pressure threshold, at which point the inflation control valve is closed.

[0044] Furthermore, the tire pressure regulation system also includes a deflation device;

[0045] Tire pressure regulation methods also include:

[0046] During vehicle operation, road information and real-time vehicle speed are obtained;

[0047] If the road surface is uneven and the real-time vehicle speed is greater than the second vehicle speed threshold, then the third real-time tire pressure of each tire is obtained.

[0048] If the third real-time tire pressure is less than the third tire pressure threshold, and the third tire pressure threshold is greater than or equal to the first tire pressure threshold, then

[0049] The inflation control valve is opened to inflate the tire until the third real-time tire pressure equals the third tire pressure threshold, at which point the inflation control valve is closed.

[0050] If the third real-time tire pressure is greater than the third tire pressure threshold, then

[0051] The deflation device is opened to deflate the tire until the third real-time tire pressure equals the third tire pressure threshold, at which point the deflation device is closed.

[0052] Furthermore, the tire pressure regulation system also includes a deflation device;

[0053] Tire pressure regulation methods also include:

[0054] While the vehicle is in motion, it acquires navigation information and steering wheel angle.

[0055] If there is a turn ahead or the steering wheel angle is greater than the preset angle threshold, then obtain the fourth real-time tire pressure of each tire;

[0056] If the tire pressure of the inner tire in a group of tires is greater than that of the outer tire, or if the tire pressure difference between the outer and inner tires is less than the preset tire pressure difference, then

[0057] The deflation device of the inner tire is controlled to deflate, and / or the inflation control valve of the outer tire is controlled to inflate, until the tire pressure of the inner tire is lower than that of the outer tire, and the tire pressure difference between the outer and inner tires is greater than the preset tire pressure difference.

[0058] The technical solution of this application also provides a storage medium that stores computer instructions, which, when executed by a computer, are used to perform the tire pressure regulation method as described above.

[0059] The technical solution of this application also provides an electronic device, including at least one processor; and,

[0060] A memory communicatively connected to the at least one processor; wherein,

[0061] The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the tire pressure regulation method as described above.

[0062] The above technical solution has the following beneficial effects:

[0063] This application provides an outer ring air passage on the outer ring of the bearing and a moving part air passage on the inner ring and rim of the bearing. The moving part air passage rotates with the inner ring and rim relative to the outer ring air passage. By providing a first sealing element, the connection is sealed to prevent air leakage and ensure the airtightness of the air passage.

[0064] The air tank is connected to the outer ring air passage via an inflation control valve. When the inflation control valve is open, the gas in the air tank can enter the air chamber through the outer ring air passage and the moving part air passage to inflate the tire. Attached Figure Description

[0065] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. In the drawings:

[0066] Figure 1 This is an overall structural diagram of the tire pressure regulation system in one embodiment of this application;

[0067] Figure 2 This is a cross-sectional view of a tire in one embodiment of this application;

[0068] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0069] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0070] Figure 5 yes Figure 2 Enlarged view of point C in the middle;

[0071] Figure 6 This is a schematic diagram of the venting device in one embodiment of this application;

[0072] Figure 7 This is a schematic diagram of the circuit structure of the tire pressure regulation system in one embodiment of this application;

[0073] Figure 8This is one of the flowcharts of a tire pressure regulation method in one embodiment of this application;

[0074] Figure 9 This is a second flowchart of a tire pressure regulation method in one embodiment of this application;

[0075] Figure 10 This is the third flowchart of a tire pressure regulation method in one embodiment of this application;

[0076] Figure 11 This is the fourth flowchart of a tire pressure regulation method in one embodiment of this application;

[0077] Figure 12 This is a schematic diagram of the hardware structure of an electronic device in one embodiment of this application.

[0078] Reference table for attached figures:

[0079] 1. Air tank; 2. Bearing outer ring; 3. Bearing inner ring; 4. Wheel rim; 401. Wheel rim shaft; 402. Wheel rim body; 403. Wheel spokes; 5. Air spring; 6. Air guide pipe.

[0080] Outer airway 01;

[0081] Inner ring air passage 02: connecting air groove 21, embedded air passage 22, connecting groove 221;

[0082] Rim air passage 03: Axle air passage 31, main air passage 32, external air passage 33, third seal 34, one-way valve 35;

[0083] First sealing element 04: gas seal 41, inner ring support ring 411, inner ring lip 412, outer ring support ring 413, outer ring lip 414, pressure relief channel 415, oil seal 42, oil seal cavity 43, baffle 44.

[0084] Second sealing element 05: sealing ring gasket 51, axial through cavity 52, limiting ring 53, sealing ring 54;

[0085] Inflation control valve 06;

[0086] Venting device 07: Inlet end 71, outlet end 72;

[0087] Tire pressure monitoring device 08, control device 09. Detailed Implementation

[0088] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0089] It is readily understood that, based on the technical solution of this application, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this application. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this application and should not be considered as the entirety of this application or as limitations or restrictions on the technical solution of the application.

[0090] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0091] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meanings of the above in this application according to the specific circumstances.

[0092] Tire pressure regulation system:

[0093] The tire pressure regulation system in the embodiments of this application, such as Figure 1 , 2 As shown, it includes:

[0094] Gas tank 1, gas tank 1 is installed on the vehicle body;

[0095] Outer ring air passage 01 is provided in the outer ring 2 of the bearing, and one end of the outer ring air passage 01 is connected to the air tank 1.

[0096] The moving air passage is located in the inner ring 3 of the bearing and the rim 4. One end of the moving air passage is connected to the outer ring air passage 01, and the other end is connected to the air cavity formed by the outer surface of the tire and the rim 4.

[0097] The first seal 04 is disposed at the connection between the outer ring air passage 01 and the moving part air passage;

[0098] The inflation control valve 06 is installed between the gas tank 1 and the outer ring air passage 01 to control the opening and closing of the gas tank 1 and the outer ring air passage 01.

[0099] The air tank 1 can be the air source tank of the air spring 5 in the vehicle. Generally, the amount of air required by the tires is relatively small, and the air source tank can fully guarantee the air supply to the air springs and tires. This setup can utilize the existing air source tank in the vehicle, eliminating the need to add an additional air tank and saving space. The air tank 1 is connected to the air guide pipe 6, which is connected to the outer ring air passage. The inflation control valve 06 is installed on the air guide pipe 6 to control the opening and closing of the air guide pipe 6, thereby realizing the start and stop control of inflation.

[0100] It should be noted that each tire is connected to the air tank 1 through an air pipe 6, and each air pipe 6 is equipped with an inflation control valve 06 to control the inflation of the corresponding tire.

[0101] like Figure 2 As shown, the wheel includes a bearing and a rim 4 mounted on the bearing. The bearing includes an outer ring 2 and an inner ring 3. The outer ring 2 is fixed to the vehicle. The rim 4 and the inner ring 3 are tightly connected by bolts, and both are able to rotate relative to the outer ring 2.

[0102] The outer ring air passage 01 can be a channel opened in the outer ring 2 of the bearing, and the moving part air passage can be a channel opened in the inner ring 3 of the bearing and the rim. Both the outer ring air passage 01 and the moving part air passage can be cast during the component casting process.

[0103] The air pipe 6 from the gas tank 1 can be connected to the outer ring air passage 01 by thread. For sealing, a sealing ring can also be set between the two.

[0104] When the wheel rotates, the inner ring 3 of the bearing and the rim 4 rotate synchronously relative to the outer ring 2 of the bearing. In order to prevent air leakage at the rotating part air passage, the first sealing element 04 is used to seal between the moving part air passage and the outer ring air passage 01 to prevent air leakage at the connection between the inner ring and the outer ring of the bearing.

[0105] After the gas flows out of the gas tank 1, it flows through the air guide pipe 6, then through the outer ring air passage 01 and the moving part air passage, and finally into the air cavity formed by the outer surface of the tire and the rim 4, thereby realizing the automatic inflation of the tire.

[0106] Furthermore, the motor airway includes:

[0107] Inner ring air passage 02 is provided in the inner ring 3 of the bearing. One end of the inner ring air passage 02 is connected to the outer ring air passage 01. The first seal 04 is provided at the connection between the inner ring air passage 02 and the outer ring air passage 01.

[0108] The rim air passage 03 is located in the rim 4. One end of the rim air passage 03 is connected to the inner ring air passage 02, and the other end is connected to the air chamber.

[0109] The second seal 05 is connected between the rim air passage 03 and the inner ring air passage 02.

[0110] The inner ring air passage 02 is cast into the inner ring 3 of the bearing, and the rim air passage 03 is cast into the rim 4. The rim 4 is tightly connected to the inner ring 3 of the bearing by bolts, so that the inner ring air passage 02 and the rim air passage 03 are connected. In order to improve the sealing of the air passages, the inner ring air passage 02 and the rim air passage 03 are connected by a second seal 05 to prevent air leakage at the connection between the rim 4 and the inner ring 3 of the bearing.

[0111] Furthermore, such as Figure 3 As shown, the inner airway 02 includes:

[0112] A connecting air groove 21 is formed on the outer circumferential surface of the inner ring 3 of the bearing. A first seal 04 is installed on both sides of the connecting air groove 21. The inner circumferential surface of the outer ring 2 of the bearing is tightly fitted with the outer circumferential surface of the inner ring 3 of the bearing and the first seal 04 to seal the connecting air groove 21. The outer ring air passage 01 is connected to the connecting air groove 21.

[0113] An embedded air passage 22 is provided along the axial direction of the inner ring 3 of the bearing. One end of the air passage 22 is connected to the connecting air groove 21, and the other end is connected to the rim air passage 03.

[0114] Specifically, the connecting air groove 21 is located on the outer circumferential surface of the inner ring 3 of the bearing. As the inner ring 3 rotates relative to the outer ring 2, the outer ring air passage 01 remains in communication with the connecting air groove 21. The first sealing element 04 is configured as an annular structure to seal both sides of the connecting air groove 21.

[0115] An embedded air passage 22 is formed in the inner ring 3 of the bearing to connect the air groove 21 and the rim air passage 03. Preferably, the embedded air passage 22 is arranged along the axial direction of the inner ring 3 of the bearing, so that the length of the embedded air passage 22 is minimized, reducing the casting difficulty.

[0116] Furthermore, such as Figure 3 As shown, the first seal 04 includes:

[0117] An air seal 41 is provided on each side of the connecting air groove 21;

[0118] Oil seal 42, two air seals 41 are provided on the side opposite to the connecting air groove 21, and an oil seal cavity 43 filled with grease is formed between the oil seal 42 and the air seal 41.

[0119] In this embodiment, an air seal 41 and an oil seal 42 are provided on each side of the connecting air groove 21, and a baffle 44 is installed between the air seal 41 and the oil seal 42 to form an oil seal cavity 43 between the air seal 41 and the oil seal 42. The air seal 41 performs a primary seal, and the oil seal 42 performs a secondary seal. By setting two layers of seals, the sealing effect of the first sealing element 04 is improved.

[0120] The system includes an oil seal cavity 43 between the air seal 41 and the oil seal 42, which is filled with grease. The oil seal cavity 43 communicates with the inner cavity of the oil seal 42 and the gap between the outer ring 2 and the inner ring 3 of the bearing. During inflation, under air pressure, the grease in the oil seal cavity 43 is squeezed into the inner cavity of the oil seal 42 and the gap between the outer ring 2 and the inner ring 3 of the bearing. The increased pressure within the oil seal 42 pushes the flexible oil seal 42 towards the outer ring 2 of the bearing, thus sealing the gap between the outer ring 2 and the inner ring 3. Simultaneously, some grease flows into the gap between the outer ring 2 and the inner ring 3, filling it and achieving a seal. This also lubricates the contact surfaces of the outer ring 2 and the inner ring 3, reducing frictional resistance during wheel rotation.

[0121] Specifically, the gas seal 41 includes:

[0122] The inner retaining ring includes an inner ring support ring 411 and an inner ring lip 412, with the inner ring lip 412 connected to the radial outer side of the inner ring support ring 411.

[0123] The outer retaining ring is installed radially outside the inner retaining ring and includes an outer ring support ring 413 and an outer ring lip 414. The outer ring lip 414 is connected to the radially inner side of the outer ring support ring 413. The outer ring lip 414 is partially installed on the side of the inner ring lip 412 facing the connecting air groove 21. A pressure relief channel 415 is formed between the outer ring lip 414 and the inner ring lip 412, connecting the connecting air groove 21 and the oil seal cavity 43.

[0124] The inner ring support ring 411 and the outer ring support ring 413 are made of rigid materials, while the inner ring lip 412 and the outer ring lip 414 are made of flexible materials. The contact surfaces of the outer ring lip 414 and the inner ring lip 412 facing each other are set as inclined surfaces.

[0125] During inflation, airflow blows from the outer retaining ring to the inner retaining ring, causing the outer ring lip 414 to move towards the inner ring lip 412, thus sealing the outer ring lip 414 against the inner ring lip 412. When the air pressure is high, some airflow will still leak out from the pressure relief channel 415, applying air pressure to the oil seal cavity 43.

[0126] Furthermore, such as Figure 4 As shown, a connecting groove 221 is provided at one end of the inner ring air passage 02 that connects to the rim air passage 03, and a step is formed between the inner sidewall of the connecting groove 221 and the inner sidewall of the inner ring air passage 02.

[0127] A sealing ring gasket 51 is installed on the stepped part. One end of the second sealing element 05 is threadedly connected to the rim air passage 03, and the other end extends into the connecting groove 221 and abuts against the sealing ring gasket 51.

[0128] The second seal 05 is provided with an axially penetrating cavity 52 to connect the rim air passage 03 and the inner ring air passage 02.

[0129] Specifically, one end of the second sealing element 05 is provided with a smooth rod, which is inserted into the connecting groove 221 so that the end of the smooth rod abuts against the sealing ring gasket 51, compressing the sealing ring gasket 51 to form a seal. Preferably, the opening of the connecting groove 221 can be chamfered to facilitate the insertion of the smooth rod.

[0130] Reference Figure 4 The inner diameter of the smooth rod is d1, the outer diameter is d3, the inner diameter of the connecting groove 221 is D, and the inner diameter of the embedded air passage 22 is d2. In order to achieve a sealing effect, the dimensions of the smooth rod, the connecting groove 221 and the embedded air passage 22 must satisfy d3>D+d2-d1.

[0131] The other end of the second seal 05 is provided with an external thread, which is screwed into the internal thread in the rim air passage 03 for connection. The outer periphery of the second seal 05 is also provided with a raised limiting ring 53. When the second seal 05 is screwed into the limiting ring 53 and abuts against the rim 4, it indicates that the installation is in place. In order to improve the sealing effect, a sealing ring 54 can also be installed between the limiting ring 53 and the rim 4.

[0132] Furthermore, such as Figure 2 As shown, the rim 4 includes a rim shaft 401, a rim body 402, and spokes 403 connecting the rim shaft 401 and the rim body 402;

[0133] The rim air passage 03 includes:

[0134] A shaft air passage 31 is provided in the rim shaft 401. One end of the shaft air passage 31 is connected to the inner ring air passage 02, and the other end extends to the outer surface of the rim shaft 401.

[0135] The main air passage 32 is disposed in the rim body 402 and penetrates the inner and outer surfaces of the rim body 402.

[0136] An external air passage 33 is installed along the surface of the spoke 403. One end of the external air passage 33 is connected to the end of the shaft air passage 31 that extends to the outer surface of the rim shaft 401 through a third seal 34, and the other end is connected to the end of the main air passage 32 located on the inner surface of the rim body 402 through a one-way valve 35.

[0137] In this embodiment, an axle air passage 31 and a main body air passage 32 are cast in the rim shaft 401 and the rim body 402, respectively. An external air passage 33 connects the axle air passage 31 and the main body air passage 32. The external air passage 33 can be a high-strength pipe, and a buckle is provided on the surface of the spokes 403 to fix the external air passage 33. By setting the external air passage 33, the length of the internally cast air passage in the rim 4 can be shortened, simplifying the casting process.

[0138] like Figure 5 As shown, one end of the one-way valve 35 is threadedly connected to the main air passage 32, and a sealing ring can be installed between the one-way valve 35 and the rim body 402 for sealing. The other end is threadedly connected to the external air passage 33. The one-way valve 35 only allows airflow from the external air passage 33 to the main air passage 32, and does not allow reverse flow to avoid tire gas backflow.

[0139] The third sealing element 34 is a bidirectional flow element, and its connection with the external air passage 33 and the axial air passage 31 is the same as that of the one-way valve 35, which will not be described in detail here.

[0140] Furthermore, such as Figure 6 , 7 The tire pressure regulation system shown also includes:

[0141] The air release device 07 is installed in the wheel rim 4, and its air inlet end extends into the air chamber.

[0142] Tire pressure monitoring device 08 is installed in the wheel rim 4 and is used to detect tire pressure.

[0143] Control device 09 is communicatively connected to inflation control valve 06, deflation device 07 and tire pressure detection device 08.

[0144] Specifically, the deflation device 07 can be configured as a deflation control valve, which can open and close under the control of an electrical signal. The deflation device 07 can be installed on the rim body 402, with its inlet end 71 located on the outer surface of the rim body 402 and communicating with the air chamber, and its outlet end 72 located on the inner surface of the rim body 402. When the deflation device 07 is opened, the gas in the air chamber enters from the inlet end 71 and flows out to the atmosphere from the outlet end 72, thereby realizing the deflation of the tire.

[0145] The tire pressure monitoring device 08 is installed on the outer surface of the rim body 402, and it can use a pressure sensor to detect the tire pressure in the tire cavity.

[0146] The control device 09 can be a vehicle's existing onboard computer or a local controller, such as the controller of a tire pressure monitoring system (TPMS) in the prior art, or it can be a newly added controller. The control device 09 is used to acquire the tire pressure and control the inflation control valve 06 to inflate or control the deflation device 07 to deflate according to the tire pressure, thereby realizing the automatic adjustment of the tire pressure.

[0147] It should be noted that the deflation device 07, tire pressure monitoring device 08, control device 09, and inflation control valve 06 can all be powered by the TPMS power supply installed in the wheel.

[0148] This embodiment of the application establishes a communication connection between the control device 09 and the tire pressure detection device 08, the deflation device 07, and the inflation control valve 06, thereby realizing automatic control of tire inflation and deflation. This enables automatic adjustment of tire pressure without requiring manual monitoring and management by the user, thus improving the user experience.

[0149] Tire pressure adjustment methods:

[0150] The technical solution of this application also provides a tire pressure regulation method for the tire pressure regulation system of the foregoing embodiments, such as... Figure 8 As shown, including

[0151] Step S801: In response to the vehicle driving signal, obtain the first real-time tire pressure of each tire after a preset time period;

[0152] Step S802: If the first real-time tire pressure is less than the first tire pressure threshold, then proceed to step S803;

[0153] Step S803: Control the inflation control valve to open and inflate the tire until the first real-time tire pressure is greater than or equal to the first tire pressure threshold, then control the inflation control valve to close.

[0154] Specifically, the preset time period can be set to 2-5 minutes. When a vehicle driving signal is detected, after the preset time period and the vehicle's driving has stabilized, the first real-time tire pressure of each tire is obtained by the tire pressure detection device 08 in each tire. The first real-time tire pressure of each tire is then compared with a preset first tire pressure threshold to determine whether inflation is necessary. The first tire pressure threshold is set as the lower limit of the safe tire pressure, for example, 180 kPa. When the tire pressure is lower than the first tire pressure threshold, the tire has a higher risk of blowout.

[0155] In this embodiment, the tire pressure is determined after a preset period of vehicle driving. When the tire pressure is less than a first tire pressure threshold, the inflation control valve of the corresponding tire is opened to inflate it until the tire pressure is greater than or equal to the first tire pressure threshold. This achieves low tire pressure protection and avoids tire blowout caused by excessively low tire pressure.

[0156] In one embodiment, such as Figure 9 As shown, the tire pressure regulation method also includes

[0157] Step S901: During the vehicle's operation, obtain the vehicle's real-time location and real-time speed;

[0158] Step S902: If the vehicle is on a highway and the real-time vehicle speed is greater than the first vehicle speed threshold, then obtain the second real-time tire pressure for each tire;

[0159] Step S903: If the second real-time tire pressure is less than the second tire pressure threshold and the second tire pressure threshold is greater than the first tire pressure threshold, then proceed to step S904.

[0160] Step S904: Control the inflation control valve to open and inflate the tire until the second real-time tire pressure is greater than or equal to the second tire pressure threshold, then control the inflation control valve to close.

[0161] Specifically, the system determines whether a vehicle is on a highway by acquiring its real-time location, and determines whether the vehicle is traveling at high speed by acquiring its real-time speed. A first speed threshold can be set to 60 km / h. When the vehicle is on a highway and its speed exceeds the first speed threshold, a second real-time tire pressure is acquired for each tire.

[0162] Because highways are smooth and allow for high-speed driving, slightly higher tire pressure can improve the driving experience and reduce tire-road friction, thus lowering energy consumption. Therefore, a slightly higher second tire pressure threshold is set, for example, 280 kPa. Tires with a second real-time tire pressure lower than this threshold are inflated to reach 280 kPa to adapt to the current road conditions.

[0163] This application embodiment monitors the vehicle's real-time location and speed, and adjusts the tire pressure to a second tire pressure threshold when the vehicle is traveling at high speed on a highway, thereby improving the user's driving experience.

[0164] In one embodiment, the tire pressure regulation system further includes a deflation device;

[0165] like Figure 10 As shown, tire pressure regulation methods also include:

[0166] Step S1001: During vehicle operation, acquire road information and real-time vehicle speed;

[0167] Step S1002: If the road surface is uneven and the real-time vehicle speed is greater than the second vehicle speed threshold, then obtain the third real-time tire pressure of each tire.

[0168] Step S1003: If the third real-time tire pressure is less than the third tire pressure threshold, and the third tire pressure threshold is greater than or equal to the first tire pressure threshold, then proceed to step S1004; otherwise, proceed to step S1005.

[0169] Step S1004: Control the inflation control valve to open and inflate the tire until the third real-time tire pressure equals the third tire pressure threshold, then control the inflation control valve to close.

[0170] Step S1005: If the third real-time tire pressure is greater than the third tire pressure threshold, then proceed to step S1006;

[0171] Step S1006: Control the deflation device to open and deflate the tire until the third real-time tire pressure equals the third tire pressure threshold, then control the deflation device to close.

[0172] Specifically, the system uses an onboard camera to collect road information ahead of the vehicle and processes the image to determine if the road surface is uneven. When an uneven road surface is detected and the vehicle speed exceeds a second speed threshold (which can be set to 10 km / h), the vehicle is considered to be traveling slowly on an uneven surface. In such road conditions, excessive tire pressure will cause more noticeable bumps, affecting the user's driving experience. In this case, the tire pressure can be adjusted to a slightly lower pressure than the first tire pressure threshold to achieve a cushioning effect.

[0173] The third tire pressure threshold can be set to 200 kPa. After collecting the third real-time tire pressure of each tire, the third real-time tire pressure of each tire is compared with the third tire pressure threshold. If the third real-time tire pressure is greater than the third tire pressure threshold, the deflation device of the corresponding tire is controlled to deflate and adjust the tire pressure to the third tire pressure threshold. If the third real-time tire pressure is less than the third tire pressure threshold, the inflation control valve of the corresponding tire is controlled to inflate and adjust the tire pressure to the third tire pressure threshold.

[0174] In this embodiment of the application, when a vehicle is detected traveling at low speed on an uneven road surface, the tire pressure of each tire is adjusted to the third tire pressure threshold by controlling the inflation or deflation of the tires. This not only buffers the bumps of the vehicle but also ensures that the tire pressure of each tire is consistent, maintaining a balanced force on each tire and preventing tire blowouts caused by tires with lower tire pressure on uneven road conditions.

[0175] In one embodiment, the tire pressure regulation system further includes a deflation device;

[0176] like Figure 11 As shown, tire pressure regulation methods also include:

[0177] Step S1101: During vehicle operation, obtain navigation information and steering wheel angle;

[0178] Step S1102: If there is a turn ahead or the steering wheel angle is greater than the preset angle threshold, then obtain the fourth real-time tire pressure of each tire;

[0179] Step S1103: If the tire pressure of the inner tire in a group of tires is greater than that of the outer tire, or the tire pressure difference between the outer tire and the inner tire is less than the preset tire pressure difference, then proceed to step S1104.

[0180] Step S1104: Control the deflation device of the inner tire to deflate, and / or control the inflation control valve of the outer tire to inflate, until the tire pressure of the inner tire is less than that of the outer tire, and the tire pressure difference between the outer tire and the inner tire is greater than the preset tire pressure difference.

[0181] The navigation information can be obtained from the navigation system, while the steering wheel angle can be obtained from the steering control system. The navigation information can be used to predict whether there is a turning requirement ahead; when the steering wheel angle exceeds a preset threshold, the vehicle is determined to be turning.

[0182] When a turn is detected ahead or the vehicle is already turning, the fourth real-time tire pressure of each tire is obtained, and the tire pressure of the inner tire and the tire pressure difference of the outer tire in each group are compared. Two tires located at the same position along the length of the vehicle are grouped together; for example, the two front tires of a small sedan are grouped together, and the two rear tires are grouped together. The tire on the side facing the turn is the inner tire, and the other is the outer tire. For example, if the vehicle is turning left, the left tire is the inner tire, and the right tire is the outer tire.

[0183] When turning, the inner tire experiences greater force than the outer tire. Setting the tire pressure of the inner tire to be lower than that of the outer tire helps the vehicle navigate corners. Therefore, if the tire pressure of the inner tire in a set of tires is greater than that of the outer tire, or if the tire pressure difference between the outer and inner tires is less than a preset tire pressure difference, then the outer tires are inflated, or the inner tires are deflated, or both are inflated simultaneously. This ensures that the tire pressure of the inner tire is lower than that of the outer tire, and that the tire pressure difference is greater than the preset tire pressure difference, which can be set to 30 kPa.

[0184] Steps S1103-S1104 specifically involve the following steps: If the fourth real-time tire pressure of the inner tire in a group of tires is not equal to the preset standard tire pressure, the inflation control valve or deflation device of the inner tire is opened to inflate or deflate until the fourth real-time tire pressure of the inner tire equals the preset standard tire pressure. Then, the fourth real-time tire pressure of the outer tire is subtracted from the fourth real-time tire pressure of the inner tire to obtain the real-time tire pressure difference. If the real-time tire pressure difference is less than the preset tire pressure difference, the inflation control valve of the outer tire is opened to inflate until the real-time tire pressure difference is greater than or equal to the preset tire pressure difference. This method not only adjusts the tire pressure difference between the inner and outer tires to be greater than or equal to the preset tire pressure difference, but also avoids the risk of a tire blowout due to insufficient tire pressure in the inner tire.

[0185] In this embodiment of the application, when a vehicle is cornering, the tire pressure of the inner tire and the outer tire are adjusted so that the tire pressure of the inner tire is lower than that of the outer tire, and the tire pressure difference is greater than a preset tire pressure difference, thereby achieving the effect of assisting the vehicle in cornering.

[0186] Storage medium:

[0187] The technical solution of this application also provides a storage medium that stores computer instructions, which, when executed by a computer, are used to perform the tire pressure regulation method in any of the foregoing embodiments.

[0188] Electronic devices:

[0189] Figure 12 An electronic device according to this application is shown, comprising:

[0190] At least one processor 1201; and,

[0191] The memory 1202 is communicatively connected to the at least one processor 1201; wherein,

[0192] The memory 1202 stores instructions that can be executed by the at least one processor 1201 to enable the at least one processor 1201 to perform all the steps of the tire pressure regulation method in any of the foregoing method embodiments.

[0193] The electronic device is preferably an in-vehicle electronic control unit (ECU), and more specifically a microcontroller unit (MCU) within the in-vehicle electronic control unit.

[0194] Figure 12 Taking a processor as an example:

[0195] The electronic device may also include an input device 1203 and an output device 1204.

[0196] The processor 1201, memory 1202, input device 1203 and output device 1204 can be connected by a bus or other means. The figure shows an example of connection by bus.

[0197] The memory 1202, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions / modules corresponding to the tire pressure regulation method in the embodiments of this application. Figure 8-11 The method flow is shown. The processor 1201 executes various functional applications and data processing by running non-volatile software programs, instructions, and modules stored in the memory 1202, thereby realizing the tire pressure regulation method in the above embodiments.

[0198] The memory 1202 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created based on the use of the tire pressure regulation method, etc. Furthermore, the memory 1202 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 1202 may optionally include memory remotely located relative to the processor 1201, and these remote memories may be connected via a network to the apparatus performing the tire pressure regulation method. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0199] The input device 1203 can receive user clicks and generate signal inputs related to user settings and function control of the tire pressure regulation method. The output device 1204 may include a display screen or other display device.

[0200] When one or more modules are stored in the memory 1202, and are run by one or more processors 1201, the tire pressure regulation method in any of the above method embodiments is executed.

[0201] The above description is merely the principle and preferred embodiment of this application. It should be noted that for those skilled in the art, implementation methods obtained by appropriately combining the technical solutions disclosed in different embodiments are also included within the technical scope of this invention. Based on the principle of this application, several other modifications can also be made, which should also be considered within the protection scope of this application.

Claims

1. A tire pressure regulation system characterized by, include: Gas tank (1), said gas tank (1) is mounted on the vehicle body; Outer ring air passage (01), the outer ring air passage (01) is disposed in the outer ring (2) of the bearing, and one end of the outer ring air passage (01) is connected to the air tank (1); The moving air passage is provided in the inner ring (3) of the bearing and the rim (4). One end of the moving air passage is connected to the outer ring air passage (01), and the other end is connected to the air cavity formed by the outer surface of the tire and the rim (4). The first seal (04) is disposed at the connection between the outer ring air passage (01) and the moving part air passage; An inflation control valve (06) is installed between the gas tank (1) and the outer ring air passage (01) to control the opening and closing of the gas tank (1) and the outer ring air passage (01); The moving part air passage includes an inner ring air passage (02), a rim air passage (03), and a second seal (05). The inner ring air passage (02) includes a connecting air groove (21) and an embedded air passage (22). The inner ring air passage (02) is connected to the rim air passage (03) at one end with a connecting groove (221), and a step is formed between the inner sidewall of the connecting groove (221) and the inner sidewall of the inner ring air passage (02). A sealing ring gasket (51) is installed on the stepped portion. One end of the second sealing element (05) is threadedly connected to the rim air passage (03), and the other end extends into the connecting groove (221) and abuts against the sealing ring gasket (51). The second seal (05) is provided with an axial through cavity (52) to connect the rim air passage (03) and the inner ring air passage (02); The second sealing element (05) has a light rod at one end, which is inserted into the connecting groove (221) so that the end of the light rod abuts against the sealing ring gasket (51) and squeezes the sealing ring gasket (51) to seal; The inner diameter of the light rod is d1, the outer diameter is d3, the inner diameter of the connecting groove 221 is D, and the inner diameter of the embedded air passage (22) is d2. The dimensions of the light rod, the connecting groove (221) and the embedded air passage (22) satisfy d3>D+d2-d1.

2. The tire pressure regulation system of claim 1, wherein The moving airway includes: Inner ring air passage (02), the inner ring air passage (02) is disposed in the inner ring (3) of the bearing, one end of the inner ring air passage (02) is connected to the outer ring air passage (01), and the first sealing element (04) is disposed at the connection between the inner ring air passage (02) and the outer ring air passage (01); Rim air passage (03), the rim air passage (03) is disposed in the rim (4), one end of the rim air passage (03) is connected to the inner ring air passage (02), and the other end is connected to the air chamber; The second seal (05) is connected between the rim air passage (03) and the inner ring air passage (02).

3. The tire pressure regulation system of claim 2, wherein, The inner airway (02) includes: A connecting air groove (21) is formed on the outer circumferential surface of the inner ring (3) of the bearing. The first seal (04) is installed on both sides of the connecting air groove (21). The inner circumferential surface of the outer ring (2) of the bearing is tightly fitted with the outer circumferential surface of the inner ring (3) of the bearing and the first seal (04) to seal the connecting air groove (21). The outer ring air passage (01) is connected to the connecting air groove (21). An embedded air passage (22) is provided along the axial direction of the inner ring (3) of the bearing. One end of the air passage (22) is connected to the connecting air groove (21), and the other end is connected to the rim air passage (03).

4. The tire pressure regulation system of claim 3, wherein, The first seal (04) includes: An air seal (41) is provided on each side of the connecting air groove (21). Oil seal (42), each of the two gas seals (41) is provided with an oil seal (42) on the side away from the connecting gas groove (21), and an oil seal cavity (43) filled with grease is formed between the oil seal (42) and the gas seal (41).

5. The tire pressure regulation system of claim 4, wherein, The gas seal (41) includes: The inner retaining ring includes an inner ring support ring (411) and an inner ring lip (412), the inner ring lip (412) being connected to the radially outer side of the inner ring support ring (411); An outer retaining ring is installed on the radially outer side of the inner retaining ring and includes an outer ring support ring (413) and an outer ring lip (414). The outer ring lip (414) is connected to the radially inner side of the outer ring support ring (413). The outer ring lip (414) is partially installed on the side of the inner ring lip (412) facing the connecting air groove (21). A pressure relief channel (415) connecting the connecting air groove (21) and the oil seal cavity (43) is formed between the outer ring lip (414) and the inner ring lip (412).

6. The tire pressure regulation system of claim 2, wherein, The rim (4) includes a rim axle (401), a rim body (402), and spokes (403) connecting the rim axle (401) and the rim body (402). The rim air passage (03) includes: A shaft air passage (31) is provided in the rim shaft (401). One end of the shaft air passage (31) is connected to the inner ring air passage (02), and the other end extends to the outer surface of the rim shaft (401). The main air passage (32) is disposed in the rim body (402) and the main air passage (32) penetrates the inner surface and the outer surface of the rim body (402); An external air passage (33) is installed along the surface of the spoke (403). One end of the external air passage (33) is connected to the end of the shaft air passage (31) extending to the outer surface of the rim shaft (401) through a third seal (34). The other end is connected to the end of the main air passage (32) located on the inner surface of the rim body (402) through a one-way valve (35).

7. The tire pressure regulation system of claim 1, wherein, Also includes: Venting device (07), the venting device (07) is installed in the rim (4), and its air inlet extends into the air chamber; Tire pressure detection device (08), which is installed in the rim (4) and is used to detect tire pressure; The control device (09) is communicatively connected to the inflation control valve (06), the deflation device (07), and the tire pressure detection device (08).

8. A tire pressure regulating method for the tire pressure regulating system according to any one of claims 1 to 7, characterized by, include In response to vehicle driving signals, the first real-time tire pressure of each tire is obtained after a preset time period; If the first real-time tire pressure is less than the first tire pressure threshold, then The inflation control valve is opened to inflate the tire until the first real-time tire pressure is greater than or equal to the first tire pressure threshold, at which point the inflation control valve is closed.

9. The tire pressure regulation method according to claim 8, characterized by, Also includes During vehicle operation, the vehicle's real-time location and speed are obtained. If the vehicle is on a highway and the real-time vehicle speed is greater than the first vehicle speed threshold, then the second real-time tire pressure of each tire is obtained. If the second real-time tire pressure is less than the second tire pressure threshold, and the second tire pressure threshold is greater than the first tire pressure threshold, then The inflation control valve is opened to inflate the tire until the second real-time tire pressure is greater than or equal to the second tire pressure threshold, at which point the inflation control valve is closed.

10. The tire pressure regulation method according to claim 8, characterized by, The tire pressure regulation system also includes a deflation device; The method further includes: During vehicle operation, road information and real-time vehicle speed are acquired; If the road surface is uneven and the real-time vehicle speed is greater than the second vehicle speed threshold, then the third real-time tire pressure of each tire is obtained. If the third real-time tire pressure is less than the third tire pressure threshold, and the third tire pressure threshold is greater than or equal to the first tire pressure threshold, then The inflation control valve is opened to inflate the tire until the third real-time tire pressure equals the third tire pressure threshold, at which point the inflation control valve is closed. If the third real-time tire pressure is greater than the third tire pressure threshold, then The deflation device is opened to deflate the tire until the third real-time tire pressure equals the third tire pressure threshold, at which point the deflation device is closed.

11. The tire pressure regulation method according to claim 8, characterized by, The tire pressure regulation system also includes a deflation device; The method further includes: While the vehicle is in motion, it acquires navigation information and steering wheel angle. If there is a turn ahead or the steering wheel angle is greater than the preset angle threshold, then obtain the fourth real-time tire pressure of each tire; If the tire pressure of the inner tire in a group of tires is greater than that of the outer tire, or if the tire pressure difference between the outer and inner tires is less than the preset tire pressure difference, then The deflation device of the inner tire is controlled to deflate, and / or the inflation control valve of the outer tire is controlled to inflate, until the tire pressure of the inner tire is lower than that of the outer tire, and the tire pressure difference between the outer and inner tires is greater than the preset tire pressure difference.

12. A storage medium, characterized by The storage medium stores computer instructions, which, when executed by the computer, are used to perform the tire pressure regulation method as described in any one of claims 8-11.

13. An electronic device, comprising: Includes at least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the tire pressure adjustment method of any one of claims 8-11.

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