Sensor-based direct tire pressure monitoring warning system, method and vehicle for a car

Abstract

The application relates to a sensor-based automobile direct tire pressure monitoring alarm system and method and a vehicle, wherein from the start of the vehicle to the wake-up of a tire pressure sensor before the vehicle speed is greater than 30km / h and within 1min after the vehicle speed is greater than 30km / h for the first time, a controller outputs a tire pressure state as an initialization state; after the vehicle speed is greater than 30km / h for the first time, if a tire pressure value signal is not received or after a certain tire sensor signal is received, the controller outputs a tire pressure state as a sensor loss state; after a low-battery sign bit of the tire pressure sensor is continuously received, the controller outputs a sensor low-battery state; if continuous tire pressure values are less than 80% Pwarm, the controller outputs an under-pressure state; if continuous rapid air leakage frames are received and the tire pressure value is continuously decreasing, the controller outputs a rapid air leakage state; the application adds a tire pressure initialization stage, and improves the driving safety and comfort of users.

Description

Technical Field

[0001] This invention belongs to the field of vehicle control technology and relates to a sensor-based direct tire pressure monitoring and alarm system, method and vehicle for automobiles. Background Technology

[0002] As automobiles become increasingly important to human life, they have become an integral part of modern life. As a crucial component of a vehicle, tire performance is primarily determined by tire pressure. Both excessively low and high tire pressure negatively impact tire performance and lifespan, ultimately affecting driving safety. The purpose of a tire pressure monitoring system (TPMS) is to monitor tire pressure in real time during driving and issue alerts for abnormal conditions such as tire leaks and low pressure, ensuring driving safety. Direct TPMS systems utilize pressure sensors mounted on the tires to measure tire pressure. A wireless transmitter sends the tire pressure and sensor information to a central controller, which then determines if an alarm is triggered and displays the tire pressure value. However, current TPMS systems only display tire pressure values ​​after the tire pressure sensors are activated, and there are no restrictions on alarm conditions or tire pressure values ​​during the sensor initialization phase.

[0003] Patent document CN115972826A discloses a vehicle tire pressure monitoring system, method, and vehicle. The system includes a tire pressure detection module, a radio frequency (RF) receiving module, and a vehicle body domain control module. The tire pressure detection module detects tire pressure information and transmits it to the RF receiving module. The RF receiving module receives the tire pressure information and stores it when the vehicle's power is off, so that it can be transmitted to the vehicle body domain control module when the vehicle's communication network is activated. The vehicle body domain control module receives and processes the tire pressure information when the vehicle's communication network is activated, so that the processed tire pressure information is transmitted to the vehicle's instrument panel for display when the vehicle's power is on. This system can achieve real-time acquisition and storage of tire pressure information without powering on the entire vehicle, ensuring driving safety and improving the driving experience.

[0004] The aforementioned patent documents mainly describe the transmission and parsing process of tire pressure sensor information, without analyzing the parsed information.

[0005] Patent document CN115042804A relates to a vehicle active safety control system and method based on tire pressure monitoring, and a vehicle. The method includes the following steps: S01, the tire pressure anomaly determination module of the core controller acquires vehicle speed signals and tire pressure signals from the vehicle-side gateway and tire pressure sensors, respectively; S02, the tire pressure anomaly determination module determines whether the tire pressure is abnormal based on the vehicle speed signal and tire pressure signal. If so, the lateral control module, longitudinal control module, and alarm module of the core controller respectively control the corresponding lateral control actuator, longitudinal control actuator, and alarm mechanism to perform vehicle operation tasks, thereby achieving active vehicle safety control. This invention can provide timely and accurate active safety control of the vehicle through multiple functional modules integrated in the core controller, ensuring the driver's driving safety.

[0006] The aforementioned patent document mainly describes a system for determining whether there is an abnormality in tire pressure by using vehicle speed and tire pressure value, without considering the situation of sensor failure.

[0007] Patent document CN114734762A provides a tire pressure monitoring method, controller, system, and electronic device. The method includes: acquiring the current speed of a vehicle; determining a tire pressure correction strategy based on the current speed; converting the current tire pressure of each tire of the vehicle into a corresponding standard static tire pressure according to the tire pressure correction strategy; determining a tire pressure monitoring index based on the standard static tire pressure; and monitoring the tire pressure of the vehicle according to the tire pressure monitoring index. Thus, regardless of whether the vehicle is stationary or moving, considering that ambient temperature and vehicle speed will affect the tire pressure, this embodiment needs to convert the current tire pressure into a standard static tire pressure according to the tire pressure correction strategy to eliminate the influence of external factors on tire pressure, improve the accuracy of tire pressure monitoring, and thus promptly alarm when there is a problem with the tire pressure, ensuring driving safety.

[0008] The aforementioned patent document mainly introduces a system that determines a tire pressure correction strategy based on vehicle speed, converts the tire pressure into a standard static tire pressure through the strategy, and issues an alarm accordingly. Summary of the Invention

[0009] The purpose of this invention is to meet the user's need for real-time monitoring of tire pressure during vehicle operation and to provide alarms for abnormal conditions such as tire leaks and low tire pressure, thereby improving vehicle safety. This invention provides a sensor-based direct tire pressure monitoring and alarm system and method for automobiles.

[0010] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0011] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0012] A sensor-based direct tire pressure monitoring and alarm system for automobiles includes:

[0013] Sensors are used to collect information on tire pressure, tire temperature, and sensor charge level.

[0014] The transmitter is used to send the information collected by the sensors to the central controller;

[0015] The controller is used to receive information sent by the transmitter, output the tire pressure values ​​of the four tires of the vehicle and the tire pressure alarm status, and send them to the instrument panel.

[0016] The instrument panel displays tire pressure values ​​and status alerts based on the tire pressure values ​​of the four tires and the tire pressure warning status.

[0017] A sensor-based direct tire pressure monitoring alarm method for automobiles includes the following steps:

[0018] S1: Vehicle starts;

[0019] S2: If the sensor learning status in the controller is not learned, the controller outputs the tire pressure status as the sensor not learned, and the instrument displays the text message "Tire pressure system malfunction".

[0020] S3: When the sensor has been learned, from the time the vehicle starts until the vehicle speed is greater than 30km / h before waking up the sensor and before receiving the tire pressure value signal within 1 minute when the vehicle speed is first greater than 30km / h, the controller outputs the tire pressure status as the initialization state, and the instrument displays the text prompt "Initializing".

[0021] S4: If the tire pressure signal is not received after the vehicle speed exceeds 30km / h for the first time, or if the tire pressure signal is not received after receiving a signal from a certain sensor, the controller outputs the tire pressure status as sensor loss status, and the instrument displays the text message "Tire pressure system failure".

[0022] S5: If the sensor is not lost and has been initialized, after continuously receiving the sensor low battery flag, the controller outputs the tire pressure status as low battery status, and the instrument displays the text message "Low battery".

[0023] S6: If continuous tire pressure values ​​are received, assuming the sensor is functioning correctly and has been initialized.

[0024] ≤80% Pwarm, where Pwarm is the standard tire pressure value for warming up the vehicle; when the controller outputs a low tire pressure status, the instrument panel will display the text "Please check tire pressure";

[0025] S7: If the sensor is functioning normally and has been initialized, and if a series of rapid air leakage frames are received and the tire pressure value continues to decrease, the controller will output the tire pressure value as a rapid air leakage state, and the instrument panel will display the text message "Rapid tire pressure leakage".

[0026] S8: When the sensor has been learned, if the vehicle speed is greater than 30km / h for the first time and a tire pressure value signal is received without any abnormal information, the controller outputs the tire pressure status as normal and there is no text prompt on the instrument panel.

[0027] Furthermore, in S2: the tire pressure warning light on the instrument panel flashes, the tire pressure icon is red, the tire pressure value is displayed as 0, the horn sounds once, and the instrument panel displays the text message "Tire pressure system malfunction";

[0028] In S3: The tire pressure warning light on the instrument panel is off, the tire pressure icon is white, the tire pressure value is not displayed, the horn does not sound, and the instrument panel displays the text message "Initializing".

[0029] In S4: The tire pressure warning light on the instrument panel flashes, the tire pressure icon is red, the tire pressure value is not displayed, the horn sounds once, and the instrument panel displays the text message "Tire pressure system malfunction";

[0030] In S5: The tire pressure warning light on the instrument panel flashes, the tire pressure icon is red, the tire pressure value is displayed as the actual value, the horn sounds once, and the instrument panel displays the text message "Low battery power".

[0031] In S6: The tire pressure warning light on the instrument panel stays on, the tire pressure icon is red, the tire pressure value is displayed as the actual value, the horn sounds 3 times, and the instrument panel displays the text message "Please check tire pressure".

[0032] In S7: The tire pressure warning light on the instrument panel stays on, the tire pressure icon is red, the tire pressure value is displayed as the actual value, the horn sounds twice, and the instrument panel displays the text message "Rapid tire pressure leak".

[0033] In S8: The controller outputs the tire pressure status as normal, the tire pressure warning light on the instrument is off, the tire pressure icon is white, the tire pressure value is displayed as the actual value, the horn does not sound, and there are no text prompts on the instrument.

[0034] Furthermore, in S4: if a tire pressure signal is not received 1 minute after the vehicle speed first exceeds 30km / h, or if a tire pressure signal is not received for 9.5 minutes after receiving a signal from a certain sensor, the controller outputs the tire pressure status as sensor lost.

[0035] Furthermore, in S5: if the sensor is not lost and initialization is complete, after receiving 3 consecutive frames of the sensor battery low flag bit, the controller outputs the tire pressure status as the sensor battery low status.

[0036] Furthermore, in S6: if the sensor is functioning normally and initialization is complete, and two consecutive frames of tire pressure values ​​are received that are ≤80% Pwarm, the controller outputs the tire pressure status as under-pressure.

[0037] Furthermore, the formula for calculating the standard tire pressure value for vehicle warm-up is: Pwarm=[(Prec+Patm) / Tatm]xTtire-Patm, where Pwarm is the standard tire pressure for vehicle warm-up, and the unit is kPa;

[0038] Prec is the recommended tire pressure, measured in kPa, which is the standard tire pressure value written into the BCM when the vehicle rolls off the production line.

[0039] Patm is atmospheric pressure, and the unit is kPa, usually calculated as 100 kPa.

[0040] Tatm is the ambient temperature in K, taken from the signal AmbientTemp emitted by ATC_2;

[0041] Tire temperature, measured in Kelvin (K), is emitted by a sensor.

[0042] Furthermore, in S7: if the sensor is normal and has been initialized, and if three consecutive rapid air leakage frames are received with an interval of no more than 8 seconds between each frame and the tire pressure value is continuously decreasing, the controller outputs the tire pressure value as a rapid air leakage state.

[0043] Furthermore, in S8: if the sensor has been learned, and a tire pressure signal is received within 1 minute of the vehicle speed first exceeding 30km / h without any abnormal information, the controller outputs the tire pressure status as normal.

[0044] A vehicle includes a sensor-based direct tire pressure monitoring alarm system, the system performing the sensor-based direct tire pressure monitoring alarm method.

[0045] Compared with the prior art, the beneficial effects of the present invention are:

[0046] Compared with existing tire pressure monitoring and alarm systems, this invention adds a tire pressure initialization phase. It specifies the tire pressure alarm status output by the tire pressure monitoring system before the vehicle speed reaches the standard for activating the tire pressure sensor, and simultaneously displays the text "Initializing" on the instrument panel, clarifying to the user that the current tire pressure status is in an initialization state rather than a fault state, thus improving user driving safety and comfort. Attached Figure Description

[0047] The invention will now be further described with reference to the accompanying drawings:

[0048] Figure 1 This is a diagram illustrating the configuration of a sensor-based direct tire pressure monitoring system for automobiles.

[0049] Figure 2 This is a flowchart of the tire pressure monitoring process. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. The embodiments of this invention will be described in detail below with reference to the accompanying drawings.

[0051] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0052] The present invention will now be described in detail with reference to the accompanying drawings:

[0053] See Figure 1 A sensor-based direct tire pressure monitoring and alarm system for automobiles, comprising:

[0054] Tire pressure sensors are used to collect information such as tire pressure, tire temperature, and sensor charge.

[0055] A wireless transmitter is used to send information collected by the sensors to the central controller.

[0056] The central controller is used to output the tire pressure values ​​and tire pressure alarm status of the four tires of the vehicle according to the information sent by the transmitter and send them to the instrument panel based on the control algorithm.

[0057] The instrument panel displays tire pressure values ​​and status alerts based on the tire pressure values ​​of the four tires and the tire pressure warning status.

[0058] System configuration diagram as follows Figure 1 As shown.

[0059] See Figure 2 A sensor-based direct tire pressure monitoring alarm method for automobiles, the specific workflow of which is as follows:

[0060] S1 vehicle starts;

[0061] If the sensor learning status in the controller is not learned, the controller outputs the tire pressure status as sensor not learned, the tire pressure warning light on the instrument flashes, the tire pressure icon is red, the tire pressure value is displayed as 0, the horn sounds once, and the instrument displays the text message "Tire pressure system malfunction".

[0062] When the tire pressure sensor has been learned, from the time the vehicle starts until the tire pressure sensor is woken up when the vehicle speed is greater than 30km / h and before the tire pressure value signal is received within 1 minute when the vehicle speed is first greater than 30km / h, the controller outputs the tire pressure status as the initialization state, the tire pressure warning light on the instrument is off, the tire pressure icon is white, the tire pressure value is not displayed, the horn does not sound, and the instrument displays the text message "Initializing".

[0063] If, after the tire pressure sensor has been learned, the S4 fails to receive a tire pressure signal for 1 minute after the vehicle speed first exceeds 30 km / h, or fails to receive a single tire pressure signal for 9.5 minutes after receiving a signal from a tire sensor, the controller outputs a tire pressure status indicating sensor loss. The tire pressure warning light on the instrument panel flashes, the tire pressure icon turns red, the tire pressure value is not displayed, the horn sounds once, and the instrument panel displays the text message "Tire pressure system malfunction".

[0064] If the tire pressure sensor is not lost and has been initialized, after receiving three consecutive frames of the low battery flag from the tire pressure sensor, the controller outputs a low battery status for the tire pressure sensor. The tire pressure warning light on the instrument panel flashes, the tire pressure icon turns red, the actual tire pressure value is displayed, and the horn sounds once.

[0065] The instrument panel displays the message "Tire pressure system malfunction (low battery)".

[0066] If, under the condition that the tire pressure sensor is functioning normally and has been initialized, the S6 receives two consecutive frames of tire pressure values ​​≤80%Pwarm (where Pwarm is the standard warm-up tire pressure value for the vehicle, calculated as Pwarm=[(Prec+Patm) / Tatm]xTtire-Patm, where Pwarm is the vehicle's warm-up tire pressure in kPa; Prec is the recommended tire pressure in kPa, which is the standard tire pressure value written into the BCM when the vehicle is off the production line; Patm is atmospheric pressure in kPa, usually calculated as 100 kPa; Tatm is ambient temperature in K, taken from the AmbientTemp signal sent by ATC_2; and Ttire is tire temperature in K, sent by the tire pressure sensor), the controller outputs a low tire pressure status, the tire pressure warning light on the instrument panel remains on, the tire pressure icon turns red, the tire pressure value is displayed as the actual value, the horn sounds 3 times, and the instrument panel displays the text prompt "Please check tire pressure";

[0067] If the S7 receives three consecutive rapid air leak frames with an interval of no more than 8 seconds between each frame and the tire pressure value is continuously decreasing, and the tire pressure sensor is functioning normally and has been initialized, the controller will output the tire pressure value as a rapid air leak state. The tire pressure warning light on the instrument panel will stay on, the tire pressure icon will turn red, the tire pressure value will be displayed as the actual value, the horn will sound twice, and the instrument panel will display the text message "Rapid tire pressure leak".

[0068] If the S8 receives a tire pressure signal within 1 minute of the vehicle speed first exceeding 30km / h and there is no abnormal information after the tire pressure sensor has been learned, the controller will output that the tire pressure status is normal, the tire pressure warning light on the instrument panel will be off, the tire pressure icon will be white, the tire pressure value will be displayed as the actual value, the horn will not sound, and there will be no text prompts on the instrument panel.

[0069] Tire pressure monitoring procedure as follows Figure 2 As shown.

[0070] This invention adds a tire pressure initialization stage. It specifies the tire pressure alarm output by the tire pressure monitoring system before the vehicle speed reaches the standard for activating the tire pressure sensor, and simultaneously displays the text "Initializing" on the instrument panel, clarifying to the user that the current tire pressure status is in an initialization state rather than a fault state. The system determines whether the sensor is lost by whether a valid tire pressure signal is received within a unit of time. It calculates the warm tire pressure value in real time based on ambient and tire temperatures, and uses this warm tire pressure value to determine whether there is underinflation, thus better adapting to tire pressure requirements under different temperature conditions.

[0071] The present invention provides a vehicle including a sensor-based direct tire pressure monitoring alarm system, the system executing a sensor-based direct tire pressure monitoring alarm method.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. A sensor-based direct tire pressure monitoring and alarm method for automobiles, characterized in that, Includes the following steps: S1: Vehicle starts; S2: If the sensor learning status in the controller is not learned, the controller outputs the tire pressure status as sensor not learned, and the instrument displays the text message "Tire pressure system malfunction"; In S2: The tire pressure warning light on the instrument panel flashes, the tire pressure icon is red, the tire pressure value is displayed as 0, the horn sounds once, and the instrument panel displays the text message "Tire pressure system malfunction"; S3: When the sensor has been learned, from the time the vehicle starts until the vehicle speed exceeds 30km / h and before the tire pressure signal is received within 1 minute of the vehicle speed first exceeding 30km / h, the controller outputs the tire pressure status as initialization state, and the instrument displays the text message "Initializing"; the tire pressure value is not displayed. S4: If the tire pressure signal is not received after the vehicle speed exceeds 30km / h for the first time, or if the tire pressure signal is not received after receiving a signal from a certain sensor, the controller will output the tire pressure status as sensor loss status, and the instrument will display the text message "Tire pressure system failure". In S4: The tire pressure warning light on the instrument panel flashes, the tire pressure icon is red, the tire pressure value is not displayed, the horn sounds once, and the instrument panel displays the text message "Tire pressure system malfunction"; S5: If the sensor is not lost and has been initialized, after continuously receiving the sensor low battery flag, the controller outputs the tire pressure status as low battery status, and the instrument displays the text message "low battery". S6: If the sensor is functioning normally and has been initialized, and if a continuous tire pressure value of ≤80%Pwarm is received (Pwarm is the standard tire pressure value for warming up the vehicle), the controller outputs a low tire pressure status, and the instrument panel displays the text "Please check tire pressure". S7: If the sensor is functioning normally and has been initialized, and if a series of rapid air leakage frames are received and the tire pressure value continues to decrease, the controller will output the tire pressure value as a rapid air leakage state, and the instrument panel will display the text message "Rapid tire pressure leakage". S8: When the sensor has been learned, if the vehicle speed is greater than 30km / h for the first time and a tire pressure signal is received without any abnormal information, the controller outputs that the tire pressure status is normal and there is no text prompt on the instrument panel.

2. The sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: In S3: The tire pressure warning light on the instrument panel is off, the tire pressure icon is white, the horn does not sound, and the instrument panel displays the text "Initializing"; In S5: The tire pressure warning light on the instrument panel flashes, the tire pressure icon is red, the tire pressure value is displayed as the actual value, the horn sounds once, and the instrument panel displays the text message "Low battery power"; In S6: The tire pressure warning light on the instrument panel stays on, the tire pressure icon is red, the tire pressure value is displayed as the actual value, the horn sounds 3 times, and the instrument panel displays the text message "Please check tire pressure"; In S7: The tire pressure warning light on the instrument panel stays on, the tire pressure icon is red, the tire pressure value is displayed as the actual value, the horn sounds twice, and the instrument panel displays the text message "Rapid tire pressure leak". In S8: The controller outputs a normal tire pressure status, the tire pressure warning light on the instrument panel is off, the tire pressure icon is white, the tire pressure value is displayed as the actual value, the horn does not sound, and there are no text prompts on the instrument panel.

3. The sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: In S4: If a tire pressure signal is not received within 1 minute after the vehicle speed first exceeds 30km / h, or if a tire pressure signal is not received for 9.5 minutes after receiving a signal from a certain sensor, the controller outputs the tire pressure status as sensor lost.

4. The sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: In S5: If the sensor is not lost and has been initialized, after receiving 3 consecutive frames of the sensor battery low flag, the controller outputs the tire pressure status as the sensor battery low status.

5. The sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: In S6: If the sensor is functioning normally and has been initialized, and two consecutive tire pressure values ​​are received that are ≤80%Pwarm, the controller will output the tire pressure status as under-pressure.

6. The sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: The formula for calculating the standard tire pressure for warming up a vehicle is: Pwarm=[(Prec+Patm) / Tatm]xTtire-Patm, where Pwarm is the standard tire pressure for warming up a vehicle, and the unit is kPa; Prec is the recommended tire pressure, measured in kPa, which is the standard tire pressure value written into the BCM when the vehicle rolls off the production line. Patm is atmospheric pressure, and the unit is kPa, usually calculated as 100 kPa. Tatm is the ambient temperature in K, taken from the signal AmbientTemp emitted by ATC_2; Tire temperature, measured in Kelvin (K), is emitted by a sensor.

7. The sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: In S7: If the sensor is functioning normally and has been initialized, and if three consecutive rapid air leakage frames are received with an interval of no more than 8 seconds between each frame and the tire pressure value is continuously decreasing, the controller will output the tire pressure value as a rapid air leakage state.

8. A sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that: In S8: If the sensor has been learned, and the tire pressure signal is received within 1 minute when the vehicle speed first exceeds 30km / h and there is no abnormal information, the controller outputs the tire pressure status as normal.

9. A sensor-based direct tire pressure monitoring and alarm method for automobiles according to claim 1, characterized in that, The system used in this method includes: Sensors are used to collect information on tire pressure, tire temperature, and sensor charge level. The transmitter is used to send the information collected by the sensors to the central controller; The controller is used to receive information sent by the transmitter, output the tire pressure values ​​of the four tires of the vehicle and the tire pressure alarm status, and send them to the instrument panel. The instrument panel displays tire pressure values ​​and status alerts based on the tire pressure values ​​of the four tires and the tire pressure warning status.

10. A vehicle, characterized in that: The vehicle includes a sensor-based direct tire pressure monitoring alarm system, the system performing the sensor-based direct tire pressure monitoring alarm method according to any one of claims 1 to 8.

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