CN115723487B - Tire pressure control method and device, vehicle and storage medium - Google Patents
Tire pressure control method and device, vehicle and storage medium Download PDFInfo
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- CN115723487B CN115723487B CN202111004579.5A CN202111004579A CN115723487B CN 115723487 B CN115723487 B CN 115723487B CN 202111004579 A CN202111004579 A CN 202111004579A CN 115723487 B CN115723487 B CN 115723487B
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Abstract
The invention provides a tire pressure control method and device, a vehicle and a storage medium, wherein the method comprises the following steps: acquiring the temperature value and the tire pressure value of the environment of the vehicle under the current working condition; judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment; if yes, the tire pressure regulating system is controlled to be started so as to perform inflation or deflation control on the tires of the vehicle. According to the invention, the temperature value and the pressure value of the environment are monitored in real time, when the tire pressure of the vehicle is abnormal, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, so that the real-time regulation of the tire pressure is realized, the problem that the running safety of the vehicle is low due to the fact that the tire pressure cannot be regulated in real time is avoided, and the running safety of the vehicle is improved.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a tire pressure control method and apparatus, a vehicle, and a storage medium.
Background
With the rapid development of vehicle technology, various performances and functions of vehicles are greatly improved, and meanwhile, the use experience and safety requirements of people on the vehicles are also higher and higher. The active tire pressure regulating system is firstly applied to the military off-road vehicle in the second combat period, and is used for improving the performance of the military off-road vehicle, and the active tire pressure regulating system technology is gradually applied to the fields of common passenger vehicles and commercial vehicles along with the maturity of the active tire pressure regulating system technology.
The active tire pressure regulating system can effectively manage the tire pressure of the vehicle, and controls the inflation or deflation of each tire according to the working mode and the external environment of the vehicle so that the tire pressure can be kept within the standard range in each working mode. The conventional vehicle is generally equipped with a TPMS (tire pressure monitoring system ) so as to monitor the tire pressure in real time, and when any tire pressure is abnormal, the TPMS can immediately send out an abnormal tire pressure alarm signal to a driver in an audible and visual mode.
However, when the tire pressure is in a running state, the tire pressure monitoring system cannot immediately take effective measures to compensate the tire pressure, so that the tire burst risk still exists in the running process of the vehicle, and the safety of the vehicle in the running process is low.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art.
Therefore, an object of the present invention is to provide a tire pressure control method, which includes obtaining a temperature value and a pressure value of an environment of a vehicle under a current working condition, determining whether the pressure value of a tire exceeds a preset pressure threshold range according to a preset pressure threshold range corresponding to the temperature value of the environment, and when the pressure value of the tire exceeds the preset pressure threshold range, considering that the tire pressure of the vehicle is abnormal, at this time, controlling a tire pressure regulating system to perform inflation or deflation control on the tire of the vehicle, thereby realizing real-time regulation of the tire pressure, avoiding the problem that the tire pressure cannot be regulated in real time, resulting in lower driving safety of the vehicle, and improving driving safety of the vehicle.
To this end, a second object of the present invention is to propose a tire pressure control device.
To this end, a third object of the invention is to propose a vehicle.
To this end, a fourth object of the invention is to propose a readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention proposes a tire pressure control method including: acquiring the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire; judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment; if yes, the tire pressure regulating system is controlled to be started so as to perform inflation or deflation control on the tires of the vehicle.
According to the tire pressure control method, whether the pressure value of the tire exceeds the preset pressure threshold range or not is judged according to the preset pressure threshold range corresponding to the temperature value of the environment and the pressure value of the tire under the current working condition, when the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure regulating system is controlled to be started at the moment to perform inflation or deflation control on the tire of the vehicle, when the pressure value of the tire exceeds the preset range, the tire pressure of the vehicle is controlled to be abnormal at the moment, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, real-time regulation on the tire pressure is achieved, the problem that the running safety of the vehicle is low due to the fact that the tire pressure cannot be regulated in real time is solved, and therefore the running safety of the vehicle is improved.
In some embodiments, before controlling the tire pressure regulating system to turn on, further comprises: acquiring a wheel speed value of the vehicle; judging whether the wheel speed value is smaller than or equal to a preset wheel speed threshold value or not; if yes, the tire pressure regulating system is controlled to be started so as to perform inflation or deflation control on the tires of the vehicle.
In some embodiments, the tire pressure control method further comprises: and if the wheel speed value is larger than the preset wheel speed threshold value, controlling the tire pressure regulating system to be in a closed state.
In some embodiments, after determining that the pressure value is outside the preset pressure threshold range, further comprising: and sending out preset alarm prompt information.
In some embodiments, the tire pressure control method further comprises: and acquiring tire pressure monitoring data, and controlling the tire pressure regulating system to increase the output air pressure when the air leakage of the tire is determined according to the tire pressure monitoring data so as to continuously inflate the tire.
In some embodiments, after controlling the tire pressure regulating system to increase the output air pressure to continuously inflate the tire, further comprising: and when the pressure value of the tire is increased to a preset upper pressure limit value, controlling the tire pressure regulating system to reduce the output air pressure.
In some embodiments, the determining of the tire air leakage from the tire pressure monitoring data comprises: and when the fluctuation of the tire pressure monitoring data exceeds a preset fluctuation threshold value, and the inflation frequency of the tire pressure regulating system in the first preset time is larger than the preset frequency or the single inflation time exceeds the second preset time, determining that the tire leaks.
In some embodiments, the current operating conditions include: any one of a first highway working condition, a second highway working condition, a third highway working condition, an off-road working condition, a sand working condition and a snow working condition, wherein the environment temperature corresponding to the first highway working condition is higher than that of the second highway working condition, and the environment temperature corresponding to the second highway working condition is higher than that of the third highway working condition.
In some embodiments, before the inflation or deflation control of the tires of the tire pressure vehicle, further comprising: judging whether the inflation pressure value or the deflation pressure value of the air pump of the tire pressure regulating system is in a corresponding preset inflation pressure threshold range or a preset deflation pressure threshold range; and if the inflation pressure value or the deflation pressure value is correspondingly beyond the preset inflation pressure threshold range or the preset deflation pressure threshold range, controlling the air pump so as to correspondingly adjust the inflation pressure value or the deflation pressure value of the air pump to be correspondingly within the preset inflation pressure threshold range or the preset deflation pressure threshold range.
In some embodiments, the tire pressure control method further comprises: when a manual inflation and deflation instruction is received, judging the current gear of the vehicle; and if the current gear is a preset gear, responding to the manual inflation and deflation instructions to inflate and deflate the tire.
To achieve the above object, an embodiment of a second aspect of the present invention proposes a tire pressure control device including: the acquisition module is used for acquiring the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire; the judging module is used for judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment; and the control module is used for controlling the tire pressure regulating system to be started when the pressure value exceeds a preset pressure threshold range so as to perform inflation or deflation control on the tires of the vehicle.
According to the tire pressure control device provided by the embodiment of the invention, the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire are obtained, whether the pressure value of the tire exceeds the preset pressure threshold range is judged according to the preset pressure threshold range corresponding to the temperature value of the environment, and when the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure regulating system is controlled to be started at the moment to perform inflation or deflation control on the tire of the vehicle, so that when the pressure value of the tire exceeds the preset range, the tire pressure of the vehicle is considered to be abnormal, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, thereby realizing real-time regulation on the tire pressure, avoiding the problem that the tire pressure cannot be regulated in real time and the running safety of the vehicle is lower, and further improving the running safety of the vehicle.
To achieve the above object, an embodiment of a third aspect of the present invention proposes a vehicle including: the tire pressure control device described in the above embodiment; or a processor, a memory, and a tire pressure control program stored on the memory and executable on the processor, which when executed by the processor, implements the tire pressure control method of the above-described embodiment.
According to the vehicle provided by the embodiment of the invention, the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire are obtained, whether the pressure value of the tire exceeds the preset pressure threshold range is judged according to the preset pressure threshold range corresponding to the temperature value of the environment, and when the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure regulating system is controlled to be started at the moment to perform inflation or deflation control on the tire of the vehicle, so that when the pressure value of the tire exceeds the preset range, the tire pressure of the vehicle is considered to be abnormal, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, thereby realizing real-time regulation on the tire pressure, avoiding the problem that the tire pressure cannot be regulated in real time and resulting in lower safety of vehicle driving, and further improving the safety of vehicle driving.
To achieve the above object, an embodiment of a third aspect of the present invention proposes a computer-readable storage medium having stored thereon a tire pressure control program which, when executed by a processor, implements the tire pressure control method as described in the above embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a tire pressure regulating system according to one embodiment of the present invention;
fig. 2 is a flowchart of a tire pressure control method according to an embodiment of the present invention;
Fig. 3 is a schematic hardware configuration view of a tire pressure regulating system according to an embodiment of the present invention;
fig. 4 is a block diagram of a tire pressure control device according to one embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a tire pressure regulating system according to an embodiment of the present invention. As can be seen from fig. 1, in a specific application scenario, the tire pressure regulating system includes: domain controller, whole vehicle instrument, integrated valve, tire valve, manual pneumatic valve, tire pressure monitoring system, air pressure sensor, air pump, pneumatic pipeline, inflation and deflation integrated valve and gas holder. When the tire pressure of the vehicle is controlled, the domain controller collects the input information of the tire pressure value, the wheel speed value, the gear, the temperature value, the whole vehicle instrument and the system pressure through a CAN (Controller Area Network, controller local area network) bus, and the electromagnetic valve and the air pump in the tire pressure regulating system are driven to work through comprehensively analyzing the information, so that the pressure value of the tire is regulated, and the tire CAN be in a good working state under different working conditions.
The tire pressure control method according to the embodiment of the present invention is described below.
The following describes a tire pressure control method according to an embodiment of the present invention with reference to fig. 2 and 3, and as shown in fig. 2, the tire pressure control method according to an embodiment of the present invention includes at least steps S1 to S3.
Step S1, acquiring the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire.
In an embodiment, the domain controller integrates functions of an ECU (Electronic Control Unit, an electronic control unit) and a terminal of the tire pressure monitoring system, and is used for collecting temperature values and pressure values of the environment of the vehicle in real time through communication with a CAN bus of the whole vehicle, comprehensively analyzing the collected information, wherein the temperature values of the environment are recorded as T, and the pressure values of the tires are recorded as P.
For example, the current working condition of the vehicle is a working condition manually set by a driver on the whole vehicle instrument, specifically, the driver determines the current working condition of the vehicle by operating the whole vehicle instrument, and obtains the temperature value T of the environment and the pressure value P of the tire of the vehicle under the current working condition, so as to control the tire pressure correspondingly according to the temperature value T of the environment and the pressure value P of the tire.
And S2, judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment. It is understood that, in the preset temperature threshold range, when the pressure value P of the tire exceeds the corresponding preset pressure threshold range, the tire pressure of the vehicle is considered to be abnormal.
In an embodiment, the preset temperature threshold range and the preset pressure threshold range corresponding to different working conditions are different, for example, when the temperature value of the environment is between 0 ℃ and 40 ℃, if the current working condition is determined to be a highway working condition, the system defaults to a highway suitable air temperature working condition, and the corresponding preset pressure threshold range is 250kPa plus or minus 5kPa.
For example, after determining the environmental temperature value and the tire pressure value of the vehicle under the current working condition, the system automatically determines the sub-working condition under the main working condition according to the environmental temperature value. If the current main working condition is a highway working condition and the temperature value T of the environment is 25 ℃, judging that the sub-working condition is a highway proper air temperature working condition, at the moment, if the measured pressure value of the tire is also within a preset pressure threshold range, the tire is not inflated or deflated, otherwise, the system adjusts the tire pressure value to be within the preset pressure threshold range, namely 250kPa plus or minus 5kPa. If the current main working condition is a highway working condition and the temperature value T of the environment is 45 ℃, judging that the sub-working condition is a highway heat air temperature working condition, at the moment, if the measured pressure value is also within a preset pressure threshold range, the tire is not inflated or deflated, otherwise, the system adjusts the tire pressure value to be within the preset pressure threshold range, namely 270kPa plus or minus 5kPa.
The temperature value T of the environment is determined to distinguish the sub-working condition under the main working condition, and the magnitude relation between the pressure value P of the tire and the preset pressure threshold range is determined, so that the tire pressure regulating system is correspondingly controlled, and the accuracy of tire pressure control is improved.
And S3, if yes, controlling the tire pressure regulating system to be started so as to perform inflation or deflation control on the tires of the vehicle.
In the embodiment, when the pressure value P is determined to exceed the preset pressure threshold range corresponding to the current working condition, the tire pressure of the vehicle is considered to be abnormal, if the vehicle continues to run at the current tire pressure, a tire burst risk may exist, and therefore, the corresponding inflation or deflation control needs to be performed on the tire of the vehicle, so that the tire pressure of the vehicle is always in a good working state, and the driving safety of the vehicle is improved.
According to the tire pressure control method, whether the pressure value of the tire exceeds the preset pressure threshold range or not is judged according to the preset pressure threshold range corresponding to the temperature value of the environment and the pressure value of the tire under the current working condition, when the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure regulating system is controlled to be started at the moment to perform inflation or deflation control on the tire of the vehicle, when the pressure value of the tire exceeds the preset range, the tire pressure of the vehicle is controlled to be abnormal at the moment, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, real-time regulation on the tire pressure is achieved, the problem that the running safety of the vehicle is low due to the fact that the tire pressure cannot be regulated in real time is solved, and therefore the running safety of the vehicle is improved.
In some embodiments, before controlling the tire pressure regulating system to turn on, further comprises: acquiring a wheel speed value of a vehicle; judging whether the wheel speed value is smaller than or equal to a preset wheel speed threshold value or not; if yes, the tire pressure regulating system is controlled to be started so as to perform inflation or deflation control on the tires of the vehicle.
In an embodiment, as shown in fig. 3, a schematic hardware structure of a tire pressure regulating system according to an embodiment of the present invention is shown. The domain controller is communicated with the whole vehicle CAN, and collects wheel speed signals of the vehicle, and when the vehicle runs at a low speed, active tire pressure regulation is started. Specifically, before the tire pressure regulating system is controlled to be turned on, a wheel speed value of the vehicle needs to be obtained, the wheel speed value is recorded as V, if the wheel speed value v=25 km/h of the vehicle, the vehicle speed is considered to be low, and at this time, the tire pressure regulating system is controlled to be turned on to perform inflation or deflation control on tires of the vehicle, so that the tire pressure of the tires is in a normal working state.
For example, the driver determines that the current working condition is a highway working condition by manually operating the whole vehicle instrument, when the vehicle runs under the working condition, the temperature value T of the environment of the vehicle under the current working condition and the pressure value P of the tire are obtained in real time, when the temperature value T is within a preset temperature range, the corresponding sub-working condition can be determined, at this time, the pressure value P of the tire is compared with a preset pressure threshold range under the current working condition, if the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure of the vehicle is considered to be at risk, at this time, the tire pressure regulating system is controlled to be started to perform inflation or deflation control on the tire of the vehicle, so that the tire pressure of the vehicle is in a normal tire pressure range under the working condition. By acquiring the wheel speed value V of the vehicle, when the wheel speed value V of the vehicle is smaller than or equal to a preset wheel speed threshold value, the tire pressure regulating system is controlled to be started so as to perform inflation or deflation control on the tires of the vehicle, and therefore the safety of the vehicle in tire pressure regulation is improved.
In some embodiments, the tire pressure control method further comprises: and if the wheel speed value is larger than the preset wheel speed threshold value, controlling the tire pressure regulating system to be in a closed state. It can be understood that when the wheel speed value is greater than the preset wheel speed threshold value, for example, the wheel speed value v=35 km/h, it is considered that adjusting the tire pressure of the vehicle at the current wheel speed value affects the running safety of the vehicle, and therefore, when the wheel speed value is greater than the preset wheel speed threshold value, the tire pressure adjusting system is controlled to be in a closed state, and the inflation or deflation control is not performed on the tires of the vehicle, so as to ensure the running safety of the vehicle.
In some embodiments, after determining that the pressure value is outside the preset pressure threshold range, further comprising: and sending out preset alarm prompt information. It can be understood that after the pressure value exceeds the preset pressure threshold range, the tire pressure of the vehicle is considered to be in an abnormal state, and when the tire pressure is in an abnormal state, an alarm prompt message, such as a sound alarm message or a text alarm message, is sent through the whole vehicle instrument to prompt a driver to need to reduce the wheel speed value under the current working condition.
In some embodiments, the tire pressure control method further comprises: and acquiring tire pressure monitoring data, and controlling the tire pressure regulating system to increase the output air pressure when the air leakage of the tire is determined according to the tire pressure monitoring data so as to continuously inflate the tire.
In an embodiment, when the tire of the vehicle continuously and rapidly leaks, the domain controller increases the output current to increase the output air pressure of the air pump and continuously opens the air charging valve to charge the tire, so that the vehicle can maximally increase the mileage, and the vehicle can reach the maintenance point. Through obtaining tire pressure monitoring data, whether judge the tire leaks according to tire pressure monitoring data to when confirming the tire leaks, increase output atmospheric pressure, in order to last for the tire inflation, thereby make the vehicle can reach the maintenance point, in order to deal with the emergency condition when the tire leaks.
In some embodiments, after controlling the tire pressure regulating system to increase the output air pressure to continuously inflate the tire, further comprising: when the pressure value of the tire increases to a preset pressure upper limit value, the tire pressure regulating system is controlled to decrease the output air pressure. It is understood that the preset upper pressure limit value is set, and after the tire is continuously inflated, it is determined whether the pressure value of the tire exceeds the upper pressure limit value, and when the pressure value of the tire exceeds the upper pressure limit value, for example, the pressure value exceeds 250kPa, the tire pressure regulating system is controlled to reduce the output current.
In some embodiments, determining a tire air leak from the tire pressure monitoring data includes: and when the fluctuation of the tire pressure monitoring data exceeds a preset fluctuation threshold value, and the inflation frequency of the tire pressure regulating system in the first preset time is greater than the preset frequency or the single inflation time length exceeds the second preset time, determining that the tire leaks.
In an embodiment, when the data fluctuation of the pressure regulating monitoring system is detected to be large, and the high-frequency action or the single action of the inflation valve is long, for example, the single action time exceeds 1 minute, the tire is considered to be seriously leaked, at this time, the domain controller increases the output current, so that the output air pressure of the air pump is increased, and the inflation valve is continuously opened to inflate the tire.
In some embodiments, the current operating conditions include: any one of a first highway working condition, a second highway working condition, a third highway working condition, an off-road working condition, a sand working condition and a snow working condition, wherein the environment temperature corresponding to the first highway working condition is higher than that of the second highway working condition, and the environment temperature corresponding to the second highway working condition is higher than that of the third highway working condition.
In an embodiment, the active tire pressure regulating system is provided with different working condition modes, the instrument module can display different current working conditions to switch various working conditions, the corresponding preset temperature threshold range and the preset pressure threshold range under each working condition are different, specifically, the first highway working condition, such as a highway proper working condition, has the corresponding preset temperature threshold range of (0 ℃ -40 ℃), and the corresponding preset pressure threshold range of 250+/-5 kPa; the second highway working condition, such as highway severe cold working condition, corresponds to a preset temperature threshold range below 0 ℃ and corresponds to a preset pressure threshold range of 220+/-5 kPa; the third road working condition, such as the road heat working condition, corresponds to a preset temperature threshold range of more than 40 ℃ and corresponds to a preset pressure threshold range of 270+/-5 kPa; the corresponding preset pressure threshold range under the off-road working condition is 180+/-5 kPa; the range of the preset pressure threshold corresponding to the sand working condition is 80+/-5 kPa; the preset pressure threshold range corresponding to the snowfield working condition is 120+/-5 kPa, and it can be understood that the preset pressure threshold range can be properly adjusted according to the condition of the vehicle driving path, when the tire pressure regulating system is started and the wheel speed value of the vehicle is smaller than or equal to 30km/h, the TPMS monitors that the pressure value is below the standard range, the domain controller drives the electromagnetic valve and the air pump to work for inflation, and when the TPMS monitors that the pressure value is above the standard range, the domain controller drives the electromagnetic valve to work for deflation.
In some embodiments, before the inflation or deflation control of the tires of the tire pressure vehicle, further comprising: judging whether the inflation pressure value or the deflation pressure value of the air pump of the tire pressure regulating system is in a corresponding preset inflation pressure threshold range or a preset deflation pressure threshold range; if the inflation pressure value or the deflation pressure value is correspondingly beyond the preset inflation pressure threshold range or the preset deflation pressure threshold range, the air pump is controlled to correspondingly adjust the inflation pressure value or the deflation pressure value of the air pump to be correspondingly within the preset inflation pressure threshold range or the preset deflation pressure threshold range. The air pump provides compressed air for the whole system, and the domain controller controls the start and stop of the air pump.
In an embodiment, before the domain controller receives an inflation or deflation instruction of the tire pressure monitoring system, whether the inflation pressure value or the deflation pressure value of the air pump is within a preset inflation threshold range is required to be judged, if the inflation pressure value or the deflation pressure value is within the corresponding inflation pressure threshold range or the preset deflation pressure threshold range, the pressure of the air pump is considered to be satisfactory, if the inflation pressure value or the deflation pressure value is not within the preset inflation pressure threshold range or the preset deflation pressure threshold range, the air pump is considered to be unsatisfactory, at the moment, the air pump is controlled to be turned on or off so as to correspondingly adjust the inflation pressure value or the deflation pressure value of the air pump to be within the preset inflation pressure threshold range or the preset deflation pressure threshold range, and therefore inflation or deflation control of the tire of the vehicle is achieved.
Specifically, when the inflation pressure value or the deflation pressure value of the air pump is within the preset inflation pressure threshold value range or the deflation pressure threshold value range, the domain controller gives an inflation instruction, and at this time, the coils of the inflation valve 4, the inflation valve 6, the inflation valve 9 and the inflation valve 11 start to be powered on, and at the same time, the coils of the deflation valve 5, the deflation valve 7, the deflation valve 8 and the deflation valve 10 lose power, compressed air passes through the inflation valve 4, the inflation valve 6, the inflation valve 9 and the inflation valve 11 to reach the tire valve 13, the tire valve 16, the tire valve 22 and the tire valve 19, and since the pressure P1 of high-pressure air is far greater than the pressure P0 of each tire, and the tire valve 13, the tire valve 16, the tire valve 22 and the tire valve 19 are pneumatic control valves, the tire valve 13, the tire valve 16, the tire valve 22 and the tire valve 19 can rapidly open the left side valve core V1, and the compressed air can be inflated into the tire.
When the tire pressure monitoring system monitors that the pressure in the tire is higher than the set pressure value in the whole vehicle instrument, the coils of the inflation valve 4, the inflation valve 6, the inflation valve 9 and the inflation valve 11 are powered off, the coils of the deflation valve 5, the deflation valve 7, the deflation valve 8 and the deflation valve 10 are powered on, the air path is communicated with the atmosphere to release pressure rapidly, the valve cores of the tire valve 13, the tire valve 16, the tire valve 22 and the tire valve 19 return, at the moment, the pressure sensor 25, the pressure sensor 26, the pressure sensor 27 and the pressure sensor 28 monitor that the pressure in the air path is zero, the coils of the deflation valve 5, the deflation valve 7, the deflation valve 8 and the deflation valve 10 are powered off, and the inflation is finished.
When the domain controller gives out a deflation instruction, the inflation valve 4, the inflation valve 6, the inflation valve 9 and the inflation valve 11 are powered on, compressed air passes through the inflation valve 4, the inflation valve 6, the inflation valve 9 and the inflation valve 11 to reach the tire valve 13, the tire valve 16, the tire valve 22 and the tire valve 19, the high-pressure gas pressure at the moment is P2, wherein P2 is more than P1, the tire valve 13, the tire valve 16, the tire valve 22 and the left valve core V1 of the tire valve 19 are closed, the right valve core V2 is opened, air in the tire is communicated with the atmosphere, and the tire begins to be deflated, and when the tire pressure monitoring system 14 is used; a tire pressure monitoring system 17; a tire pressure monitoring system 23; when the tire pressure monitoring system 20 monitors that the tire pressure P0 is lower than a set value P10 in a whole vehicle instrument, the coils of the inflation valves 4, 6, 9 and 11 are powered off, and the air release valve 5 is powered off; a purge valve 7; a purge valve 8; the air release valve 10 is powered on, the air path is communicated with the atmosphere to release pressure rapidly, and the tire valve 13 is arranged; a tire valve 16; a tire valve 22; the valve core V2 of the tire valve 19 returns, and the air pressure sensor 25 is at the moment; a barometric pressure sensor 26; an air pressure sensor 27; the air pressure sensor 28 monitors that the pressure P11 in the air path is 0, and the air release valve 5; a purge valve 7; a purge valve 8; the air release valve 10 is powered down by the coil, the deflation is finished.
The air pressure sensor is used for monitoring the pressure value in the air storage tank, two different pressures P1 and P2 are respectively used in the air charging and discharging processes, the pressure can be controlled through the combination of two modes in the pressure switching process, firstly, the air pump 1 is started and stopped, secondly, the air discharging valve 5, the air discharging valve 7, the air discharging valve 8 and the air discharging valve 10 are powered on, and the air path is communicated with the atmosphere rapidly to release pressure.
In some embodiments, the tire pressure control method further comprises: when a manual inflation and deflation instruction is received, judging the current gear of the vehicle; if the current gear is a preset gear, responding to a manual inflation and deflation instruction to inflate and deflate the tire.
In an embodiment, when the tire pressure regulating system fails, the inflation or deflation operation is stopped immediately, and when a manual inflation or deflation instruction is received, the manual inflation or deflation operation is performed when the vehicle is in a preset gear, for example, the P-stop vehicle is in a parking state.
In other embodiments, after the tire inflation or deflation action of the vehicle is determined to be finished, if the pressure in the air path is 0, the tire valve of the vehicle is considered to be closed, the air path is completely unloaded, and after the inflation or deflation action is finished, the electromagnetic valve is timely reset after power is lost, and the air pump stops running.
According to the tire pressure control method, whether the pressure value of the tire exceeds the preset pressure threshold range or not is judged according to the preset pressure threshold range corresponding to the temperature value of the environment and the pressure value of the tire under the current working condition, when the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure regulating system is controlled to be started at the moment to perform inflation or deflation control on the tire of the vehicle, when the pressure value of the tire exceeds the preset range, the tire pressure of the vehicle is controlled to be abnormal at the moment, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, real-time regulation on the tire pressure is achieved, the problem that the running safety of the vehicle is low due to the fact that the tire pressure cannot be regulated in real time is solved, and therefore the running safety of the vehicle is improved.
The following describes a tire pressure control device according to an embodiment of the second aspect of the present invention.
As shown in fig. 4, the tire pressure control device 100 of the embodiment of the invention includes: the system comprises an acquisition module 101, a judging module 102 and a control module 103, wherein the acquisition module 101 is used for acquiring the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire; the judging module 102 is configured to judge whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment; the control module 103 is configured to control the tire pressure regulating system to be turned on to perform inflation or deflation control on the tires of the vehicle when the pressure value exceeds the preset pressure threshold range.
According to the tire pressure control device 100 of the embodiment of the invention, by acquiring the temperature value of the environment and the pressure value of the tire of the vehicle under the current working condition, judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment, and when the pressure value of the tire exceeds the preset pressure threshold range, controlling the tire pressure regulating system to be started at the moment to perform inflation or deflation control on the tire of the vehicle, when the pressure value of the tire exceeds the preset range, considering the tire pressure of the vehicle to be abnormal, at the moment, controlling the tire pressure regulating system to perform inflation or deflation control on the tire of the vehicle, thereby realizing real-time regulation on the tire pressure, avoiding the problem that the tire pressure cannot be regulated in real time and resulting in lower safety of vehicle running, and improving the safety of vehicle running.
A vehicle according to an embodiment of a third aspect of the present invention is described below, the vehicle including: the tire pressure control device 100 of the above-described embodiment; or a processor, a memory, and a tire pressure control program stored on the memory and executable on the processor, which when executed by the processor implements the tire pressure control method of the above-described embodiment.
According to the vehicle provided by the embodiment of the invention, the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire are obtained, whether the pressure value of the tire exceeds the preset pressure threshold range is judged according to the preset pressure threshold range corresponding to the temperature value of the environment, and when the pressure value of the tire exceeds the preset pressure threshold range, the tire pressure regulating system is controlled to be started at the moment to perform inflation or deflation control on the tire of the vehicle, so that when the pressure value of the tire exceeds the preset range, the tire pressure of the vehicle is considered to be abnormal, the tire pressure regulating system is controlled to perform inflation or deflation control on the tire of the vehicle, thereby realizing real-time regulation on the tire pressure, avoiding the problem that the tire pressure cannot be regulated in real time and resulting in lower safety of vehicle driving, and further improving the safety of vehicle driving.
A computer-readable storage medium of a fourth aspect of the present invention, on which a tire pressure control program is stored, which when executed by a processor, implements the tire pressure control method of the above-described embodiment, is described below.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A tire pressure control method for a tire pressure regulating system, the method comprising:
acquiring the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire;
judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment;
when the pressure value of the tire exceeds the preset pressure threshold range, acquiring a wheel speed value of the vehicle;
Judging whether the wheel speed value is smaller than or equal to a preset wheel speed threshold value or not;
And when the wheel speed value is smaller than or equal to a preset wheel speed threshold value, controlling the tire pressure regulating system to be started so as to perform inflation or deflation control on the tires of the vehicle.
2. The tire pressure control method according to claim 1, characterized by further comprising:
And if the wheel speed value is larger than the preset wheel speed threshold value, controlling the tire pressure regulating system to be in a closed state.
3. The tire pressure control method according to claim 1, wherein after determining that the pressure value exceeds the preset pressure threshold range, further comprising: and sending out preset alarm prompt information.
4. The tire pressure control method according to claim 1, characterized by further comprising:
and acquiring tire pressure monitoring data, and controlling the tire pressure regulating system to increase the output air pressure when the air leakage of the tire is determined according to the tire pressure monitoring data so as to continuously inflate the tire.
5. The tire pressure control method according to claim 4, characterized by further comprising, after controlling the tire pressure regulating system to increase the output air pressure to continuously inflate the tire:
And when the pressure value of the tire is increased to a preset upper pressure limit value, controlling the tire pressure regulating system to reduce the output air pressure.
6. The tire pressure control method according to claim 4 or 5, wherein the determining of the tire air leakage from the tire pressure monitoring data includes:
And when the fluctuation of the tire pressure monitoring data exceeds a preset fluctuation threshold value, and the inflation frequency of the tire pressure regulating system in the first preset time is larger than the preset frequency or the single inflation time exceeds the second preset time, determining that the tire leaks.
7. The tire pressure control method according to claim 1, wherein the current operating condition includes: any one of a first highway working condition, a second highway working condition, a third highway working condition, an off-road working condition, a sand working condition and a snow working condition, wherein the environment temperature corresponding to the first highway working condition is higher than that of the second highway working condition, and the environment temperature corresponding to the second highway working condition is higher than that of the third highway working condition.
8. The tire pressure control method according to claim 1, characterized by further comprising, before the inflation or deflation control of the tires of the tire pressure vehicle:
Judging whether the inflation pressure value or the deflation pressure value of the air pump of the tire pressure regulating system is in a corresponding preset inflation pressure threshold range or a preset deflation pressure threshold range;
and if the inflation pressure value or the deflation pressure value is correspondingly beyond the preset inflation pressure threshold range or the preset deflation pressure threshold range, controlling the air pump so as to correspondingly adjust the inflation pressure value or the deflation pressure value of the air pump to be correspondingly within the preset inflation pressure threshold range or the preset deflation pressure threshold range.
9. The tire pressure control method according to claim 1, characterized by further comprising:
when a manual inflation and deflation instruction is received, judging the current gear of the vehicle;
and if the current gear is a preset gear, responding to the manual inflation and deflation instructions to inflate and deflate the tire.
10. A tire pressure control device, characterized by comprising:
The acquisition module is used for acquiring the temperature value of the environment of the vehicle under the current working condition and the pressure value of the tire;
The judging module is used for judging whether the pressure value of the tire exceeds the preset pressure threshold range according to the preset pressure threshold range corresponding to the temperature value of the environment;
The control module is used for acquiring the wheel speed value of the vehicle when the pressure value of the tire exceeds the preset pressure threshold range; judging whether the wheel speed value is smaller than or equal to a preset wheel speed threshold value or not; and when the wheel speed value is smaller than or equal to a preset wheel speed threshold value, controlling the tire pressure regulating system to be started so as to perform inflation or deflation control on the tires of the vehicle.
11. A vehicle, characterized by comprising:
The tire pressure control device of claim 10; or alternatively
A processor, a memory, and a tire pressure control program stored on the memory and executable on the processor, which when executed by the processor, implements the tire pressure control method of any one of claims 1-9.
12. A computer-readable storage medium, on which a tire pressure control program is stored, which when executed by a processor, implements the tire pressure control method according to any one of claims 1 to 9.
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| CN118722082A (en) * | 2023-03-31 | 2024-10-01 | 比亚迪股份有限公司 | Vehicle tire pressure active regulating device and control method thereof and vehicle |
| CN118849674A (en) * | 2023-04-28 | 2024-10-29 | 比亚迪股份有限公司 | Tire pressure regulating system and method, and vehicle |
| CN118849673A (en) * | 2023-04-28 | 2024-10-29 | 比亚迪股份有限公司 | Wheel side inflation and deflation device, active tire pressure inflation and deflation system and vehicle |
| CN118457100B (en) * | 2024-07-15 | 2024-10-29 | 比亚迪股份有限公司 | Tire pressure regulating device control method, device, system, vehicle, equipment and medium |
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