Vehicle tire pressure monitoring system and method

Abstract

A vehicle tire pressure monitoring system includes a vehicle-mounted inertial measurement module for measuring vehicle inertial information; a vehicle status sensing module for sensing vehicle status information; and a processing module for reading the vehicle status information and the vehicle inertia information are calculated to obtain the real-time vehicle center of gravity displacement information; a tire pressure status module reads the real-time vehicle center of gravity displacement information and analyzes it with a preset condition to obtain the vehicle real-time tire pressure status information.

Description

[Technical Field]

[0001] This invention relates to the field of vehicle tire pressure monitoring system and vehicle tire pressure monitoring method, and in particular to a vehicle tire pressure monitoring system and vehicle tire pressure monitoring method using an on-board balance measurement module. [Previous Technology]

[0002] The main function of a Tire Pressure Monitoring System (TPMS) is to monitor the air pressure of a car's tires and issue warnings when the air pressure is abnormal, thereby improving driving safety. The operating principles of TPMS are mainly divided into the following two types: 1. Direct TPMS: This system directly installs pressure sensors inside each tire or on the valve stem, transmitting data wirelessly to a receiver inside the vehicle. Its main principle is as follows: Pressure sensor: The sensor measures the air pressure and temperature inside the tire; Wireless transmission: Data is transmitted via radio waves to the central receiving unit inside the vehicle; Real-time monitoring: The display screen or warning light alerts the driver to abnormal tire pressure (such as too low or too high). Advantages: Accurate data, high real-time performance, and accurate reporting of the air pressure of each tire; Disadvantages: The battery needs to be replaced regularly, and pressure sensors need to be installed inside each tire, resulting in higher costs. Maintenance and battery replacement also require additional expenses. Furthermore, the sensors are susceptible to environmental and surrounding conditions, and malfunctions may lead to false alarms or failure to detect tire pressure. Direct TPMS uses wireless signals to transmit tire pressure data. These signals can be interfered with by other electronic devices or have dirty tire sensors, affecting the system's accuracy and reliability. When a tire needs to be changed or a spare tire is used, the sensors in a direct TPMS also need to be moved to the new tire or the system settings need to be recalibrated, increasing maintenance complexity. 2. Indirect TPMS: This system uses wheel speed sensors in the vehicle's existing Anti-lock Braking System (ABS) or Electronic Stability Program (ESP) to indirectly estimate tire pressure. Its operating principle is as follows: Wheel speed sensor: detects the rotational speed of each tire; Relationship between tire pressure and wheel speed: Tires with insufficient tire pressure have a smaller diameter and rotate faster than other tires; Data analysis: The system infers whether the tire pressure is abnormal by comparing the differences in rotational speeds of each tire. Advantages: No additional hardware required, lower cost. Disadvantages: It's not very accurate and may not detect all tire pressure abnormalities. Because it doesn't directly measure air pressure, it may not detect low tire pressure in time in some cases. Usually, you have to wait for the tire to roll for a short time before measuring, meaning a leak might be detected while the vehicle is moving, especially when all tires have slight leaks simultaneously, leading to misjudgments. Furthermore, it requires recalibration after tire replacement or inflation.

[0003] The main purpose of both direct and indirect tire pressure monitoring systems is to help drivers take timely measures when tire pressure is abnormal, reducing the risk of tire blowout and improving fuel efficiency. However, current direct and indirect systems each have their advantages and disadvantages. While direct systems are more accurate and can provide single tire pressure data, they are suitable for high-end vehicles or scenarios with high safety requirements, but are also affected by environmental factors and various interferences. Indirect systems are low-cost and do not require additional hardware, and are mostly used in economy vehicles. This invention proposes a balanced tire pressure monitoring system that can overcome the shortcomings of existing direct and indirect systems, providing a more comprehensive and complete detection method and a more economical solution for current tire pressure detection. [Summary of the Invention]

[0004] This invention proposes a vehicle tire pressure monitoring system, including an on-board balance measurement module for measuring vehicle balance state information; a driving state sensing module for sensing driving state information; a processing module for reading the vehicle balance state information and driving state information and performing calculations to obtain real-time vehicle center of gravity position information; and a tire pressure status module for reading the real-time vehicle center of gravity position information and analyzing it with a preset condition to determine the real-time tire pressure status information of the vehicle.

[0005] Furthermore, it also includes a display module that can read the real-time vehicle center of gravity location information and visually output it as a vehicle center of gravity displacement status display information.

[0006] Furthermore, it also includes a surround view detection module to provide surround view image information, and the tire pressure status module can read and analyze the surround view image information at the same time.

[0007] Furthermore, it also includes a terrain display module for providing terrain image information, and the tire pressure status module can read and analyze the terrain image information at the same time.

[0008] This invention proposes a vehicle tire pressure monitoring method, applied to a vehicle, comprising the following steps: providing a processing module for performing calculations and data processing; providing an on-board balance measurement module for measuring vehicle balance state information; providing a driving state sensing module for sensing driving state information; the processing module reads the vehicle balance state information and the driving state information and performs calculations to obtain real-time vehicle center of gravity position information; providing a tire pressure status module, after reading the real-time vehicle center of gravity position information, performing a matching analysis against a predetermined condition, and determining the real-time tire pressure status information of the vehicle.

[0009] Further, the predetermined conditions include: a judgment time threshold and a center position, and the tire pressure status module can compare the real-time vehicle center of gravity position information to see if it meets the predetermined conditions.

[0010] Further, the predetermined condition also includes: a displacement threshold and an angle threshold, and a judgment time threshold, which is the information on the location of the vehicle's center of gravity.

[0011] Furthermore, it also includes a display module that can read the real-time vehicle center of gravity location information and visually output it as a vehicle center of gravity displacement status display information.

[0012] Furthermore, it also includes providing a surround view detection module to provide surround view image information, and the tire pressure status module can read the surround view image information to perform the matching analysis.

[0013] Furthermore, it also includes a terrain display module that can provide terrain image information, and the tire pressure status module can read the terrain image information to perform the matching analysis. [Simplified Explanation of the Diagram]

[0035] Figure 1 is a system block diagram of a vehicle tire pressure monitoring system according to an embodiment of the present invention.

[0036] Figure 2 is a schematic diagram of vehicle tire pressure leakage judgment of a vehicle tire pressure monitoring system according to an embodiment of the present invention.

[0037] Figure 3 is a system block diagram of a vehicle tire pressure monitoring system according to another embodiment of the present invention.

[0038] Figure 4 is a system block diagram of a vehicle tire pressure monitoring system according to another embodiment of the present invention.

[0039] Figure 5 is a system block diagram of a vehicle tire pressure monitoring system according to another embodiment of the present invention.

[0040] Figure 6 is a schematic flowchart of a vehicle tire pressure monitoring method according to an embodiment of the present invention.

[0041] Figure 7 is a schematic flowchart of a vehicle tire pressure monitoring method according to another embodiment of the present invention.

Implementation Method

[0014] To better understand the content of this invention, the invention will be described in detail below with reference to the drawings and specific embodiments. It should be noted that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0015] Many specific details are set forth in the following description to provide a full understanding of the invention, but the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments that can be easily completed by those skilled in the art according to the content of the present invention are within the scope of protection of the present invention.

[0016] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of some embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this description is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0017] Please refer to Figure 1, which is a system block diagram of a vehicle tire pressure monitoring system 1 according to an embodiment of the present invention. The vehicle tire pressure monitoring system 1 of the present invention includes a processing module 11, a vehicle balance measurement module 12, a vehicle status sensing module 13, and a tire pressure status module 14. The processing module 11 can perform calculations and data processing and judgment; the vehicle balance measurement module 12 is used to measure and provide vehicle balance status information; the vehicle status sensing module 13 is used to sense and provide vehicle status information; the processing module 11 reads the vehicle balance status information and the vehicle status information and then performs calculations and data processing to obtain real-time vehicle center of gravity position information; the tire pressure status module 14 performs a matching analysis between the real-time vehicle center of gravity position information and a predetermined condition, and judges real-time vehicle tire pressure status information.

[0018] In one embodiment of the present invention, the vehicle balance measurement module 12 is used to sense and provide vehicle balance state information. The vehicle balance measurement module 12 may include, but is not limited to, one or a combination of a gravitational sensor (G-sensor), a gyroscope, an accelerometer, a magnetometer, and a barometer. The vehicle balance state information may include, but is not limited to, changes in a vehicle's speed, acceleration, gravitational acceleration, angular velocity, angular acceleration and displacement, magnetic force and magnetic field, and air pressure.

[0019] In one embodiment of the present invention, the vehicle status sensing module 13 is used to sense and provide vehicle status information. The vehicle status sensing module 13 may include, but is not limited to, one or a combination of Hall effect sensors, magnetoresistive sensors, and passive sensors. The vehicle status information may include, but is not limited to, information such as whether a vehicle is in a stationary state, a moving state, an acceleration state, or a turning state.

[0020] In one embodiment of the present invention, the processing module 11 may be a vehicle computer or other processor installed on the vehicle. The processing unit 11 can read the vehicle balance state information and the driving state information, perform calculations and data processing, and obtain real-time vehicle center of gravity position information. It is understood that the processing module 11 can be set to read the vehicle balance state information and the driving state information at set intervals, such as periodically (e.g., every 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, etc.) or irregularly according to the processing unit 11's computing power to reduce the processing unit's computational requirements.

[0021] In one embodiment of the present invention, the tire pressure status module 14 performs a matching analysis between the real-time vehicle center of gravity position information and a predetermined condition to determine the real-time tire pressure status information of the vehicle. The predetermined condition may include, but is not limited to, a center position O, an angle threshold A~G, a displacement threshold I~III, and / or a judgment time threshold. The center position O represents the center of gravity position of the vehicle under normal conditions; the tire pressure status module 14 can compare whether the real-time vehicle center of gravity position information meets the predetermined condition and provide the corresponding real-time tire pressure status information of the vehicle. Please refer to Figure 2, which is a schematic diagram of the predetermined condition judgment of the vehicle tire pressure monitoring system according to an embodiment of the present invention. The tire pressure status module 14 can integrate and analyze the real-time vehicle center of gravity location information and a planar coordinate system. In one embodiment of the invention, the planar coordinate system can be divided into several directional segments, including but not limited to setting angle thresholds A (0 degrees), B (45 degrees), C (90 degrees), D (135 degrees), E (180 degrees), F (225 degrees), and G (360 degrees). This is further supplemented by displacement thresholds I, II, and III, which represent displacement amounts from smallest to largest. In this embodiment, the angle thresholds A-G and displacement thresholds II and III can divide the planar coordinate system into directional segments OA-OG and displacement segments a-p. The judgment time threshold can be set individually, including but not limited to every 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, and 7 seconds. Understandably, different judgment time thresholds can be set depending on whether the vehicle is stationary, moving, turning, on a flat surface, uphill, downhill, or under load. The angle thresholds A~G and displacement thresholds I~III described in this invention are merely examples. Understandably, for a more accurate determination of actual tire pressure, the angle thresholds A~G and displacement thresholds I~III can be further refined. For example, displacement thresholds II~III can be replaced with displacement threshold percentages, and a database of displacement threshold percentages corresponding to actual tire pressure can be established. This would not only identify which tire has insufficient pressure but also the degree of leakage and the actual tire pressure.

[0022] In one embodiment of the present invention, if the vehicle is stationary and in a planar state, when the set judgment time threshold is exceeded, if the vehicle's center of gravity position information matches the center position O, it means that the vehicle's center of gravity is in the initial position, and the corresponding real-time tire pressure status information indicates that the vehicle's tire pressure is normal; when the judgment time threshold is exceeded, if the vehicle's center of gravity position information does not match the center position O, it means that the vehicle's center of gravity has shifted, and the corresponding real-time tire pressure status information indicates that the vehicle's tire pressure is abnormal, and the vehicle host should be notified to issue a warning. It is understood that the vehicle may have slight errors and shifts due to different states such as planar state, uphill state, downhill state, loaded state, non-planar road surface, speed bump, sidewalk, etc. An error offset can be set, that is, if the shift between the real-time vehicle center of gravity position information and the center position O is within the error offset, the corresponding real-time tire pressure status information still indicates that the vehicle's tire pressure is normal. For example, but not limited to, if the real-time vehicle center of gravity position information shifts within the displacement threshold I, it can be judged that the vehicle's tire pressure is normal.

[0023] To further determine which tire of the vehicle has abnormal tire pressure, angle thresholds A~G and displacement thresholds I~III can be imported. If the vehicle is stationary and in a planar state, after exceeding the judgment time threshold, if the real-time vehicle center of gravity position information matches the direction segment OB, it means the vehicle's center of gravity has shifted towards the angle threshold B, and the corresponding real-time tire pressure information indicates a leak in the right front tire; after exceeding the judgment time threshold, if the real-time vehicle center of gravity position information matches the direction segment OD, it means the vehicle's center of gravity has shifted towards the angle threshold D, and the corresponding real-time tire pressure information indicates a leak in the left front tire; after exceeding the judgment time threshold, if the real-time vehicle center of gravity position information matches the direction segment OF, it means the vehicle's center of gravity has shifted towards the angle threshold F, and the corresponding real-time tire pressure information indicates a leak in the left rear tire; after exceeding the judgment time threshold, if the real-time vehicle center of gravity position information matches the direction segment OH, it means the vehicle's center of gravity has shifted towards the angle threshold H, and the corresponding real-time tire pressure information indicates a leak in the right rear tire. As can be understood, vehicles may experience temporary and slight errors and deviations due to their different states, such as movement, turning, flat surfaces, uphill, downhill, loaded, non-flat road surfaces, speed bumps, and sidewalks. These errors can be corrected through methods such as, but not limited to, setting an error angle (including but not limited to ±1 degree, ±2 degrees, ±3 degrees, ±4 degrees, ±5 degrees, etc.) at angle thresholds B, D, F, and H. Within the error angle range of OB, OD, OF, and OH, the same corresponding real-time tire pressure information can still be attributed to the vehicle.

[0024] If the vehicle is stationary and in a planar state, when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the direction segment OA, it means that the vehicle's center of gravity has shifted towards the angle threshold A, and the corresponding real-time vehicle tire pressure status information indicates that the vehicle's right front wheel and right rear wheel are leaking air; when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the direction segment OC, it means that the vehicle's center of gravity has shifted towards the angle threshold C, and the corresponding real-time vehicle tire pressure status information indicates that the vehicle's right front wheel and left front wheel are leaking air; when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the direction segment OE, it means that the vehicle's center of gravity has shifted towards the angle threshold E, and the corresponding real-time vehicle tire pressure status information indicates that the vehicle's left front wheel and left rear wheel are leaking air; when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the direction segment OG, it means that the vehicle's center of gravity has shifted towards the angle threshold G, and the corresponding real-time vehicle tire pressure status information indicates that the vehicle's left rear wheel and right rear wheel are leaking air. As can be understood, vehicles may experience temporary and slight errors and deviations due to their different states, such as movement, turning, flat surfaces, uphill, downhill, loaded, non-flat road surfaces, speed bumps, and sidewalks. These errors can be corrected through methods such as, but not limited to, setting an error angle (including but not limited to ±1 degree, ±2 degrees, ±3 degrees, ±4 degrees, ±5 degrees, etc.) at angle thresholds A, C, E, and G. Within the error angle directions of the directional segments OA, OC, OE, and OG, the same corresponding real-time tire pressure information can still be attributed to the vehicle.

[0025] If the vehicle is stationary and in a flat state, when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the displacement segment a~h, the corresponding real-time vehicle tire pressure status information indicates that the vehicle's air leakage is relatively minor; if the vehicle is stationary and in a flat state, when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the displacement segment i~p, the corresponding real-time vehicle tire pressure status information indicates that the vehicle's air leakage is relatively severe.

[0026] If the vehicle is stationary and in a planar state, when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches displacement segment b and displacement segment j, the corresponding real-time vehicle tire pressure status information indicates that the tire pressure of both the right and left front wheels is abnormal, but the leakage of the right front wheel is more severe than that of the left front wheel; when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches displacement segment k and displacement segment c, the corresponding real-time vehicle tire pressure status information indicates that the tire pressure of both the left and right front wheels is abnormal, but the leakage of the left front wheel is more severe than that of the right front wheel; when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches displacement segment i and displacement segment a, the corresponding real-time vehicle tire pressure status information indicates that the tire pressure of both the left and right front wheels is abnormal, but the leakage of the left front wheel is more severe than that of the right front wheel; when the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches displacement segment i and displacement segment a, the corresponding real-time vehicle tire pressure status information indicates that the tire pressure of both the right and left front wheels is abnormal. The real-time tire pressure information indicates that the tire pressure of both the right front and right rear tires is abnormal, but the leakage of the right front tire is more severe than that of the right rear tire. When the judgment time threshold is exceeded, if the real-time vehicle center of gravity position information matches the displacement segment d and displacement segment l, the corresponding real-time tire pressure information indicates that the tire pressure of both the left front and left rear tires is abnormal, but the leakage of the left front tire is more severe than that of the left rear tire. The judgment time threshold is the real-time vehicle center of gravity position information and the real-time tire pressure information. The judgment methods for the remaining displacement segments e, m; f, n; g, o; h, and p are the same.

[0027] In another embodiment of the present invention, if the vehicle is in motion, the inertia of moving forward or backward will cause the real-time vehicle center of gravity position information to shift between the aforementioned displacement segments a~p. For example, if the right front tire of the vehicle is leaking air, when the vehicle accelerates, the real-time vehicle center of gravity position information will shift towards displacement segment a or displacement segment i due to inertia; when the vehicle reverses, the real-time vehicle center of gravity position information will shift towards displacement segment b or displacement segment j due to inertia. If the left front tire of the vehicle is leaking air, when the vehicle accelerates, the real-time vehicle center of gravity position information will shift towards displacement segment l or displacement segment d due to inertia; when the vehicle reverses, the real-time vehicle center of gravity position information will shift towards displacement segment k or displacement segment c due to inertia. The method for determining air leakage in the other tires is the same. As can be seen from the above-described embodiments, the real-time tire pressure status information of a vehicle is determined by matching and analyzing the real-time vehicle center of gravity position information with predetermined conditions. As can be understood, vehicles may experience brief and slight errors and deviations due to their different states, such as movement, turning, flat surfaces, uphill, downhill, loaded, non-flat road surfaces, speed bumps, and sidewalks. These can be adjusted through correction methods. Different databases can be accumulated for different vehicle models. The magnitude of the adjustment will not affect the spirit of this invention, which uses the real-time vehicle center of gravity position information and analyzes it with a preset condition to determine the real-time tire pressure information of a vehicle.

[0028] Please refer to Figure 3, which is a system block diagram of a vehicle tire pressure monitoring system 2 according to an embodiment of the present invention. The parts identical to those in the vehicle tire pressure monitoring system 2 and the vehicle tire pressure monitoring system 1 will not be described again; only the different parts will be described. The vehicle tire pressure monitoring system 2 also includes a display module 15, which can read the real-time vehicle center of gravity position information and visually output it as a vehicle center of gravity displacement status display information. The display module 15 can be one or a combination of an OLED display, a MicroLED display, a TFT display, and an LCD liquid crystal display, and can currently be integrated with the instrument panel and the central control screen. The vehicle center of gravity displacement status display information can include, but is not limited to, 2D and 3D movement trajectory diagrams, for visual judgment of the degree of air leakage represented by the current real-time vehicle tire pressure status information.

[0029] Please refer to Figure 4, which is a system block diagram of a vehicle tire pressure monitoring system 3 according to an embodiment of the present invention. The identical parts of the vehicle tire pressure monitoring system 3 and vehicle tire pressure monitoring systems 1 and 2 will not be repeated; only the different parts will be described. In this embodiment, the vehicle tire pressure monitoring system 3 may further include a surround view detection module 16 to provide surround view image information. The tire pressure status module 14 can simultaneously read this surround view image information for matching analysis. When more than one tire is leaking air, to avoid misjudgment, the surround view detection module 16 can be added as an auxiliary judgment tool. For example, when the front two tires are leaking air, because the real-time vehicle center of gravity position information will tilt forward, the surround view image information will deform from the original rectangle into a trapezoid or irregular quadrilateral, indicating that there is a tire leak.

[0030] Please refer to Figure 5, which is a system block diagram of a vehicle tire pressure monitoring system 4 according to an embodiment of the present invention. The identical parts of the vehicle tire pressure monitoring system 3 and vehicle tire pressure monitoring systems 1, 2, and 3 will not be described again; only the different parts will be described. In this embodiment, the vehicle tire pressure monitoring system 4 may further include a terrain display module 17 to provide terrain image information. The tire pressure status module 14 can simultaneously read the terrain image information for matching analysis. For example, when stationary on an uphill or downhill slope, the center of gravity will shift forward and backward, but the surround view image should still be rectangular and not distorted because the terrain stitching of the camera lens or lens is parallel to the road. The terrain display module 17 can increase the accuracy of judging the real-time position of the vehicle's center of gravity, avoiding a single judgment that it is a double-wheel leak, etc.

[0031] The surround view detection module 16 and the terrain display module 17 use image judgment to set different image deformation thresholds according to different situations, detecting the situation around the four wheels of the vehicle, such as slopes, protrusions, edges, arcades, shock absorber strips, or depressions, etc., to determine whether the center of gravity shift is caused by the terrain rather than a real air leak, or when a certain image deformation represents a type of tire leak. In this way, only image comparison is needed, which can greatly reduce the computing requirements and capabilities required for the main unit to continuously identify images. For example, if the right front wheel is in a depression, the vehicle's center of gravity will shift towards angle threshold B. The surround view detection module 16 will display an irregular quadrilateral, but the terrain display module 17 will show that the right front wheel is in a depression rather than leaking air. Using the surround view detection module 16 and the terrain display module 17 together can increase the accuracy of the judgment. It is understood that the surround view detection module 16 and the terrain display module 17 can be used separately or in combination without affecting the spirit of the present invention.

[0032] Please refer to Figure 6, which is a schematic flowchart of a vehicle tire pressure monitoring method according to an embodiment of the present invention. The vehicle tire pressure monitoring method of the present invention is applied to a vehicle and includes the following steps: Step S1, providing a processing module 11 for performing calculations and data processing; Step S2, providing an on-board balance measurement module 12 for measuring current vehicle balance status information; Step S3, providing a vehicle status sensing module 13 for sensing current vehicle status information; Step S4, the processing module 11 reads the vehicle balance status information and the vehicle status information and performs calculations to obtain real-time vehicle center of gravity position information; Step S5, providing a tire pressure status module 14, after reading the real-time vehicle center of gravity position information, performs a matching analysis against a predetermined condition to find a matching predetermined condition and determine the real-time tire pressure status information of the vehicle. The predetermined conditions include: displacement thresholds I to III, angle thresholds A to G, and / or a judgment time threshold. The tire pressure status module 14 can compare the real-time vehicle center of gravity position information with the above predetermined conditions to determine the corresponding real-time vehicle tire pressure status information.

[0033] Please refer to Figure 7, which is a schematic flowchart of a vehicle tire pressure monitoring method according to another embodiment of the present invention. In this embodiment, in addition to the above-mentioned vehicle tire pressure monitoring method, it also includes step S6, providing a surround view detection module, which can read the surround view image information together to perform the matching analysis, and / or also includes providing a terrain display module, which can provide terrain image information, and the tire pressure status module can read the terrain image information together to perform the matching analysis to increase the accuracy of tire pressure information judgment.

[0034] This invention proposes a vehicle tire pressure monitoring system and a vehicle tire pressure monitoring method. Its advantages include providing a more efficient and faster tire pressure monitoring method when the vehicle is stationary, avoiding delays or the risk of misjudgment and damage caused by additional monitoring and transmission modules. By using a surround view detection module and a terrain display module in conjunction, the two systems reduce the incidence of misjudgments, deficiencies, or false alarms from a single system, further ensuring driving safety. No external system is needed to increase the impact of the environment on monitoring or the complexity of the entire system components. Additional modules are already in place or readily available; this goal can be achieved simply by adding programming judgments to the vehicle's computer.

Claims

1. A vehicle tire pressure monitoring system, comprising: an on-board balance measurement module for measuring vehicle balance state information; a driving state sensing module for sensing driving state information; a processing module for reading the vehicle balance state information and the driving state information and performing calculations to obtain real-time vehicle center of gravity position information; and a tire pressure status module for reading the real-time vehicle center of gravity position information and analyzing it with a preset condition to determine the real-time tire pressure status information of the vehicle.

2. The vehicle tire pressure monitoring system as described in claim 1 further includes a display module that can read the real-time vehicle center of gravity location information and visually output it as a vehicle center of gravity displacement status display information.

3. The vehicle tire pressure monitoring system as described in claim 1 further includes an surround view detection module for providing surround view image information, and the tire pressure status module can read and analyze the surround view image information together.

4. The vehicle tire pressure monitoring system as described in claim 2 further includes a terrain display module for providing terrain image information, and the tire pressure status module can read and analyze the terrain image information together.

5. A vehicle tire pressure monitoring method, applied to a vehicle, comprising the following steps: providing a processing module for performing calculations and data processing; providing an on-board balance measurement module for measuring current vehicle balance state information; providing a driving state sensing module for sensing current driving state information; the processing module reading the vehicle balance state information and the driving state information and performing calculations to obtain real-time vehicle center of gravity position information; providing a tire pressure status module, reading the real-time vehicle center of gravity position information, performing a matching analysis against a predetermined condition, and determining the real-time tire pressure status information of the vehicle.

6. The vehicle tire pressure monitoring method as described in claim 5, wherein the predetermined conditions include: The tire pressure status module can compare the real-time vehicle center of gravity position information with a time threshold and a center position to determine whether the condition is met.

7. The vehicle tire pressure monitoring method as described in claim 6, wherein the predetermined condition further includes: The system uses a displacement threshold and an angle threshold to determine the real-time position of the vehicle's center of gravity.

8. The vehicle tire pressure monitoring method as described in claim 7 further includes providing a display module that can read the real-time vehicle center of gravity location information and visually output it as a vehicle center of gravity displacement status display information.

9. The vehicle tire pressure monitoring method as described in claim 7 further includes providing a surround view detection module to provide surround view image information, wherein the tire pressure status module can read the surround view image information to perform the matching analysis.

10. The vehicle tire pressure monitoring method as described in claim 7 further includes providing a terrain display module that can provide terrain image information, and the tire pressure status module can read the terrain image information to perform the matching analysis.

Images