Intelligent network connection passenger car air pump control method and system

Abstract

The application discloses a kind of intelligent network connection passenger car air pump control method and system, belong to intelligent network connection passenger car technical field.The whole vehicle preparation signal, initiative pumping switch signal and month signal are included, according to the whole vehicle preparation signal, initiative pumping switch signal and month signal, vehicle state is judged;According to vehicle state, obtain air cylinder pressure value, time signal, exhaust switch signal or date storage value, according to air cylinder pressure value, time signal, exhaust switch signal or date storage value, air pump working instruction is output to air pump to control the working state of air pump.Avoid the problem that intelligent network connection vehicle is caused by cold weather pipe icing and air cylinder pressure is insufficient, ensure the normal work of vehicle braking system, it is beneficial to improve the safety of whole vehicle, solve the problem that "north winter air pump compressed air contains a large amount of moisture, gas pipe network is easy to freeze, cause blockage, there is security risk" in prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent networked passenger cars, in particular to an intelligent networked passenger car air pump control method and system. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] With the rapid development of new energy technology, the public transportation industry has gradually updated its operating vehicles to intelligent networked pure electric vehicles. As a key component of pure electric vehicles, the air pump mainly provides air source for the vehicle air brake system, pneumatic door control system and other auxiliary air systems.

[0004] In winter in the north, the compressed air in the air pump contains a large amount of moisture, which causes the gas pipeline network to freeze easily, causing blockage, resulting in low and unstable gas pressure in the brake system pipeline network, and potential brake safety hazards. In addition, after the pipeline freezes in winter, the air pump can only be filled after the ice in the pipeline melts, which may take a long time, affecting the normal use of the vehicle.

[0005] Most of the currently disclosed air pump control methods are to fill air by judging the air pressure value, without fully considering the problem of pipeline freezing in winter. SUMMARY

[0006] In order to solve the problems of the prior art, the present application provides an intelligent networked passenger car air pump control method and system, which increases the active air filling switch and monitors the seasonal changes in real time through CAN information, and the vehicle controller formulates different control strategies according to the current state of the vehicle, i.e. normal air filling, forced air filling and winter air filling, to control the air pump to work, prevent the pipeline from freezing, keep the pressure of the air reservoir always above the safety value, ensure the normal work of the vehicle brake system, and improve the safety of the vehicle.

[0007] In a first aspect, the present application provides an intelligent networked passenger car air pump control method;

[0008] An intelligent networked passenger car air pump control method, comprising:

[0009] Obtaining a vehicle preparation signal, an active air filling switch signal and a month signal, judging the vehicle state according to the vehicle preparation signal, the active air filling switch signal and the month signal;

[0010] According to the vehicle state, obtaining the air reservoir pressure value, the time signal, the air exhaust switch signal or the date storage value, and outputting the air pump working instruction to the air pump to control the working state of the air pump according to the air reservoir pressure value, the time signal, the air exhaust switch signal or the date storage value.

[0011] Further, the vehicle state is determined according to the whole vehicle preparation signal, the active inflation switch signal and the month signal, and the determination includes:

[0012] If the whole vehicle preparation signal is 0, the vehicle is in a low pressure state;

[0013] If the whole vehicle preparation signal is 1 and the active inflation switch signal is detected from 0 to 1, the vehicle is determined to be in an active inflation state;

[0014] If the whole vehicle preparation signal is 1 and the month signal is greater than 11 or less than 2, the vehicle is determined to be in a winter inflation state;

[0015] If the whole vehicle preparation signal is 1, the active inflation switch signal is not detected, and the month signal is greater than 2 and less than 11, the vehicle is determined to be in a regular inflation state.

[0016] Further, when the vehicle is in the regular inflation state, the active inflation state or the winter inflation state, the whole vehicle controller controls the air pump to work;

[0017] The state priority is regular inflation state < active inflation state < winter inflation state.

[0018] Further, when the whole vehicle controller determines that the vehicle is in the regular inflation state, the whole vehicle controller outputs the air pump working instruction according to the pressure value of the air cylinder.

[0019] Further, if the pressure value of the air cylinder is less than 650Kpa, the air pump working instruction is outputted to control the air pump to start inflating;

[0020] If the pressure value of the air cylinder is greater than or equal to 650Kpa and less than 950Kpa, the air pump working instruction is outputted to be equal to the working instruction at the last moment;

[0021] If the pressure value of the air cylinder is greater than or equal to 950Kpa, the whole vehicle controller starts timing, if the time signal exceeds two minutes and the exhaust switch signal is not detected, the air pump working instruction is outputted to control the air pump to stop inflating, if the time signal does not exceed two minutes and the exhaust switch signal is detected, the air pump working instruction is outputted to control the air pump to stop inflating after a delay of 4 seconds.

[0022] Further, when the whole vehicle controller determines that the vehicle is in the active inflation state, the whole vehicle controller outputs the air pump working instruction to make the air pump start inflating and the whole vehicle controller starts timing;

[0023] If the time signal exceeds 10 minutes, the whole vehicle controller outputs the air pump working instruction to make the air pump stop inflating, generates a ten-minute inflation completion flag and stores it, and closes the active inflation switch, wherein the ten-minute inflation completion flag is 1.

[0024] If the time signal does not exceed 10 minutes, the vehicle enters a low pressure state while generating and storing a 10-minute inflation completion flag, and the air pump stops inflating, wherein the 10-minute inflation completion flag is 0.

[0025] Further, when the vehicle control unit is powered on again, the 10-minute inflation completion flag is obtained.

[0026] If the 10-minute inflation completion flag is 1, the vehicle control unit determines whether the vehicle enters an active inflation state according to the active inflation switch signal.

[0027] If the 10-minute inflation completion flag is 0, the vehicle control unit directly controls the vehicle to enter the active inflation state, and the vehicle control unit restarts timing.

[0028] Further, when the vehicle control unit determines that the vehicle is in a winter inflation state, the date storage value is obtained, and the current date is compared with the date storage value.

[0029] If the current date is not equal to the date storage value, the vehicle control unit outputs an air pump working instruction to control the air pump to start inflating, and the vehicle control unit starts timing.

[0030] If the time signal exceeds 15 minutes, the vehicle control unit outputs an air pump working instruction to control the air pump to stop inflating, and generates and stores a 15-minute inflation completion flag, wherein the 15-minute inflation completion flag is 1.

[0031] If the time signal does not exceed 15 minutes, the vehicle enters a low pressure state, and generates and stores a 15-minute inflation completion flag, wherein the 15-minute inflation completion flag is 0.

[0032] Further, when the vehicle control unit is powered on again, the 15-minute inflation completion flag is obtained.

[0033] If the 15-minute inflation completion flag is 0 and the current date is equal to the date storage value, the vehicle control unit outputs an air pump working instruction to control the air pump to start inflating until the air pump works for 15 minutes.

[0034] In a second aspect, the application provides an intelligent networked bus air pump control system.

[0035] An intelligent networked bus air pump control system includes a vehicle control unit, an active inflation switch, a pressure sensor, an air pump, and an exhaust switch.

[0036] The active inflation switch is used to control whether the vehicle enters an active inflation state; the pressure sensor is arranged in the air cylinder, and the pressure sensor is used to collect the air cylinder pressure value; the vehicle controller is used to execute the steps of any one of claims 1-9; the air pump is used to inflate according to the air pump operation instruction output by the vehicle controller; and the air exhaust switch is used to control whether the air cylinder exhausts according to the air cylinder pressure value.

[0037] Compared with the prior art, the application has the beneficial effects that:

[0038] 1. The technical scheme provided by the application increases the active inflation switch and monitors the seasonal changes in real time through CAN information, and the vehicle controller formulates different control strategies according to the current state of the vehicle, that is, the three states of normal inflation, forced inflation and winter inflation, controls the air pump to work, prevents the pipeline from icing, keeps the air cylinder pressure always not lower than the safety value, ensures the normal work of the vehicle braking system, and improves the vehicle safety.

[0039] 2. The technical scheme provided by the application avoids the problem that the air cylinder pressure of the intelligent networked vehicle is insufficient due to the pipeline icing in cold weather, ensures the normal work of the vehicle braking system, and is beneficial to improving the vehicle safety. BRIEF DESCRIPTION OF DRAWINGS

[0040] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application and explanations thereof serve to explain the application, and do not constitute improper limitations on the application.

[0041] Figure 1 The flowchart provided for the embodiments of the application. DETAILED DESCRIPTION

[0042] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs.

[0043] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0044] In the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other.

[0045] Embodiment one

[0046] In the prior art, most air pump control methods are to pump air by judging air pressure values, without fully considering the problem of pipe icing in winter. Therefore, the application provides an intelligent networked bus air pump control method.

[0047] The intelligent networked bus air pump control method comprises the following steps:

[0048] S1, obtaining a whole vehicle preparation signal (whole vehicle READY signal), an active pumping switch signal and a month signal, judging the vehicle state according to the whole vehicle preparation signal (whole vehicle READY signal), the active pumping switch signal and the month signal.

[0049] Among them, if the whole vehicle preparation signal (whole vehicle READY signal) is 0, the vehicle is in a low pressure state;

[0050] If the whole vehicle preparation signal (whole vehicle READY signal) is 1 and the active pumping switch signal is detected to change from 0 to 1 at the same time, it is judged that the vehicle is in an active pumping state;

[0051] If the whole vehicle preparation signal (whole vehicle READY signal) is 1 and the month signal is greater than 11 or less than 2, it is judged that the vehicle is in a winter pumping state;

[0052] If the whole vehicle preparation signal (whole vehicle READY signal) is 1, and no change of the active pumping switch signal is detected and the month signal is greater than 2 and less than 11, it is judged that the vehicle is in a regular pumping state.

[0053] When the vehicle is in a regular pumping state, an active pumping state or a winter pumping state, the whole vehicle controller controls the air pump to work;

[0054] The state priority is regular pumping state < active pumping state < winter pumping state. By increasing the state priority, the winter pumping is forced to run, because the icing mainly concentrates in winter, so the priority of the winter pumping state is set to the first place. In cold weather, the active pumping can be performed by operating the active switch in non-winter season, so the priority of the active pumping state is set to the second place. The regular pumping is the last guarantee for vehicle pumping, so the priority of the regular pumping state is set to the third place.

[0055] S2, obtaining a gas cylinder pressure value, a time signal, an exhaust switch signal or a date storage value according to the vehicle state, and outputting an air pump working instruction to the air pump to control the working state of the air pump according to the gas cylinder pressure value, the time signal, the exhaust switch signal or the date storage value.

[0056] When the vehicle controller determines that the vehicle is in the normal inflation state, the vehicle controller outputs a pump working instruction according to the pressure value of the air reservoir.

[0057] Specifically, if the pressure value of the air reservoir is less than 650 KPa, the pump working instruction is output to control the pump to start inflating; if the pressure value of the air reservoir is greater than or equal to 650 KPa and less than 950 KPa, the pump working instruction is equal to the working instruction at the previous moment; if the pressure value of the air reservoir is greater than or equal to 950 KPa, the vehicle controller starts timing, and if the time signal exceeds two minutes and no exhaust switch signal is detected, the pump working instruction is output to control the pump to stop inflating; if the time signal does not exceed two minutes and the exhaust switch signal is detected, the pump working instruction is output to control the pump to stop inflating after a delay of 4 seconds.

[0058] When the vehicle controller determines that the vehicle is in the active inflation state, the vehicle controller outputs a pump working instruction to make the pump start inflating and simultaneously starts timing; if the time signal exceeds 10 minutes, the vehicle controller outputs the pump working instruction to make the pump stop inflating, generates a ten-minute inflation completion flag and stores it, and closes the active inflation switch, wherein the ten-minute inflation completion flag is 1; if the time signal does not exceed 10 minutes, the vehicle enters a low-pressure state, generates the ten-minute inflation completion flag and stores it, and the pump stops inflating, wherein the ten-minute inflation completion flag is 0. When the vehicle controller is powered on again, the ten-minute inflation completion flag is obtained; if the ten-minute inflation completion flag is 1, the vehicle controller determines whether the vehicle enters the active inflation state according to the active inflation switch signal; if the ten-minute inflation completion flag is 0, the vehicle controller directly controls the vehicle to enter the active inflation state, and the vehicle controller restarts timing.

[0059] When the vehicle controller determines that the vehicle is in the winter inflation state, the date storage value is obtained, and the current date is compared with the date storage value; if the current date is not equal to the date storage value, the vehicle controller outputs a pump working instruction to control the pump to start inflating, and simultaneously starts timing; if the time signal exceeds 15 minutes, the vehicle controller outputs the pump working instruction to control the pump to stop inflating, generates a fifteen-minute inflation completion flag and stores it, wherein the fifteen-minute inflation completion flag is 1; if the time signal does not exceed 15 minutes, the vehicle enters a low-pressure state, generates the fifteen-minute inflation completion flag and stores it, wherein the fifteen-minute inflation completion flag is 0; when the vehicle controller is powered on again, the fifteen-minute inflation completion flag is obtained; if the fifteen-minute inflation completion flag is 0 and the current date is equal to the date storage value, the vehicle controller outputs the pump working instruction to control the pump to start inflating until the pump works for 15 minutes.

[0060] Next, combined with Figure 1The intelligent networked bus air pump control method disclosed in the embodiment is described in detail.

[0061] Exemplarily, the intelligent networked bus air pump control method specifically comprises the following steps:

[0062] (1) Vehicle state confirmation

[0063] After the vehicle controller is activated, the vehicle controller receives the vehicle preparation signal (vehicle READY signal), the air cylinder pressure signal P, the exhaust switch signal, the active pumping switch signal and the time signal through the CAN network. If the vehicle preparation signal (vehicle READY signal) is 0, the vehicle is in a low pressure state, and the air pump does not work; if the vehicle preparation signal (vehicle READY signal) is 1, and the rising edge change of the active pumping switch signal is detected from 0 to 1 at the same time, it is judged that the vehicle is in the active pumping state B; if the vehicle preparation signal (vehicle READY signal) is 1, and the time month CAN signal is greater than 11 or less than 2 at the same time, it is judged that the vehicle is in the winter pumping state C; if the vehicle preparation signal (vehicle READY signal) is 1, and no change of the active pumping switch is detected and the time month CAN signal is greater than 2 and less than 11, it is judged that the vehicle is in the regular pumping state A. When the vehicle is in any one of the states A, B and C, the vehicle controller controls the air pump to work, and the state priority is A < B < C.

[0064] (2) Regular pumping control

[0065] If the vehicle controller judges that the vehicle is in the regular pumping state A, and the air cylinder pressure value P < 650 Kpa, the air pump working instruction on = 1 is output, and the air pump starts pumping; if the air cylinder pressure value P ≥ 650 Kpa and P < 950 Kpa, the air pump working instruction is equal to the working instruction at the last moment, that is, on = on_last; if the air cylinder pressure value P ≥ 950 Kpa, the vehicle controller starts timing, and if the time t exceeds two minutes and no exhaust switch signal pq = 0 is received, the vehicle controller controls the air pump working instruction on = 0, and the air pump stops pumping; if the exhaust switch signal pq = 1 is received within two minutes, the vehicle controller delays for 4 seconds to control the air pump working instruction on = 0, and the air pump stops pumping. The calculation formula is as follows:

[0066]

[0067] Wherein, on is the air pump working instruction, P is the air cylinder pressure value, t is the time, pq is the exhaust switch signal, and on_last is the air pump working instruction at the last moment.

[0068] (3) Active pumping control

[0069] The vehicle controller judges that the vehicle is in the active inflation state B, that is, the rising edge change of the active inflation switch signal from 0 to 1 is detected, that is, switch_flag = 1, and outputs the air pump working instruction on = 1, and the air pump starts to inflate. At the same time, the vehicle controller performs timing, and if the time t1 exceeds 10 minutes, the vehicle controller controls the air pump to output the working instruction on = 0, and stores the 10-minute inflation completion flag ten_flag = 1 (wherein the initial value of ten_flag is set to 2) in the vehicle controller flash, and sets switch_flag to 0; if the time t1 does not exceed 10 minutes, the vehicle preparation signal (vehicle READY signal) becomes 0, that is, the vehicle becomes a low-pressure state, and the air pump stops inflating, and the vehicle controller stores ten_flag = 0 in the flash, and clears t1. When next power-on, the vehicle controller recovers the ten_flag value from the flash, and if ten_flag = 1, the vehicle controller needs to control whether the vehicle enters the active inflation state B according to the value of switch_flag; if ten_flag = 0, the vehicle controller does not need to judge whether switch_flag is 1, and directly controls the vehicle to enter the active inflation state B, and the air pump starts to inflate, and t1 is restarted, until the air pump works for 10 minutes, that is, the vehicle enters the active inflation control, and it is necessary to ensure that the air pump works continuously for 10 minutes to control the instruction to become 0. The calculation formula is as follows:

[0070]

[0071] Wherein, switch_flag is the active inflation switch signal, ten_flag is the 10-minute inflation completion flag, and t1 is the time.

[0072] (4) Winter inflation control

[0073] The vehicle controller judges that the vehicle is in the winter inflation state C, that is, the received time month CAN signal is greater than 11 or less than 2, and first judges whether the vehicle is powered on for the first time of the day. Among them, the first power-on is stored in the flash by storing the current date day_now, and then the date storage value is set as day_mem every time the power-on is obtained from the flash, and day_mem and day_now are compared to see if they are equal, if not, it is recorded as the first power-on of each day first_flag = 1, otherwise first_flag = 0, and the calculation formula is as follows:

[0074]

[0075] Wherein, first_flag is the first power-on flag of each day, day_now is the current date, and day_mem is the date storage value.

[0076] If first_flag = 1, the vehicle controller outputs the air pump working instruction on = 1, the air pump starts to pump, and the vehicle controller starts timing. If the time t2 exceeds 15 minutes, the vehicle controller controls the air pump to output the working instruction on = 0, the air pump stops pumping, and a 15-minute pumping completion flag fifteen_flag = 1 (wherein the initial value of fifteen_flag is set to 2) is stored in the vehicle controller flash. If the time t2 does not exceed 15 minutes, the vehicle preparation signal (vehicle READY signal) becomes 0, that is, the vehicle becomes a low pressure state, the air pump stops pumping, and the vehicle controller stores fifteen_flag = 0 in the flash and clears t2. When next powered on, the vehicle controller restores the fifteen_flag value from the flash. If fifteen_flag = 0 and first_flag = 0, the vehicle controller outputs the air pump working instruction on = 1, t2 is restarted, and the air pump works for 15 minutes. The vehicle controller controls the air pump to output the working instruction on = 0, that is, the air pump must work continuously for 15 minutes every new day in winter to control the instruction to become 0. The calculation formula is as follows:

[0077]

[0078] Wherein, fifteen_flag is a 15-minute pumping completion flag, first_flag is a first-time pumping flag per day, and t2 is time.

[0079] Example two

[0080] The embodiment discloses an intelligent networked bus air pump control system, which comprises a vehicle controller, a voluntary pumping switch, a pressure sensor, an air pump and an exhaust switch. The vehicle controller is in communication connection with the voluntary pumping switch, the pressure sensor, the air pump and the exhaust switch through a CAN network.

[0081] The voluntary pumping switch is used to send a voluntary pumping switch signal according to the intention of a driver. The pressure sensor is installed on a gas cylinder and is used to collect a pressure value of the gas cylinder. The exhaust switch is used to control whether the gas cylinder is exhausted according to the pressure value of the gas cylinder and send an exhaust switch signal. The vehicle controller is used to acquire the voluntary pumping switch signal, the pressure value of the gas cylinder and the exhaust switch signal, execute the steps of the intelligent networked bus air pump control method, and the air pump is used to pump according to the air pump working instruction output by the vehicle controller.

[0082] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks Figure 1 means for functionally implementing the steps listed in the flowchart block or blocks.

[0083] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks Figure 1 means for functionally implementing the steps listed in the flowchart block or blocks.

[0084] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks Figure 1 means for functionally implementing the steps listed in the flowchart block or blocks.

[0085] The above description of the various embodiments can have emphasized certain aspects of the various embodiments, which description can have been incomplete in not describing portions of the embodiments. The descriptions of the various embodiments can be supplemented with reference to the descriptions of the other embodiments.

[0086] The above only describes preferred embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling an air pump in an intelligent connected bus, characterized in that, include: Acquire the vehicle preparation signal, active air inflation switch signal, and month signal, and determine the vehicle status based on the vehicle preparation signal, active air inflation switch signal, and month signal; Based on the vehicle status, acquire the air tank pressure value, time signal, exhaust switch signal or date storage value, and output the air pump working command to the air pump to control the working status of the air pump based on the air tank pressure value, time signal, exhaust switch signal and date storage value. The process of determining the vehicle status based on the vehicle preparation signal, the active air inflation switch signal, and the month signal includes: If the vehicle readiness signal is 0, the vehicle is in a low-voltage state. If the vehicle preparation signal is 1 and the active inflation switch signal changes from 0 to 1 at the same time, it is determined that the vehicle is in active inflation mode. If the vehicle preparation signal is 1 and the month signal is greater than 11 or less than 2, then the vehicle is determined to be in winter inflation mode. If the vehicle preparation signal is 1, and no change in the active inflation switch signal is detected, and the month signal is greater than 2 and less than 11, then the vehicle is judged to be in normal inflation state. When the vehicle controller determines that the vehicle is in winter inflation mode, it obtains the date storage value and compares the current date with the date storage value to see if they are equal. If the current date is not equal to the stored date value, the vehicle controller outputs an air pump operation command to control the air pump to start pumping air, and at the same time, the vehicle controller starts timing. If the time signal exceeds 15 minutes, the vehicle controller outputs an air pump operation command to control the air pump to stop pumping air, generates and stores a 15-minute air pumping completion flag, where the 15-minute air pumping completion flag is 1; If the time signal does not exceed 15 minutes, the vehicle enters a low-pressure state, generates and stores a 15-minute inflation completion flag, where the 15-minute inflation completion flag is 0; When the vehicle controller is powered on again, it acquires the 15-minute air inflation completion flag. If the 15-minute inflation completion flag is 0 and the current date is equal to the stored date value, the vehicle controller outputs an air pump operation command to control the air pump to start inflating until the air pump has been working for 15 minutes.

2. The intelligent connected bus air pump control method as described in claim 1, characterized in that, When the vehicle is in normal inflation mode, active inflation mode or winter inflation mode, the vehicle controller controls the air pump to work. The status priority is: normal inflation status < active inflation status < winter inflation status.

3. The intelligent connected bus air pump control method as described in claim 1, characterized in that, When the vehicle controller determines that the vehicle is in normal inflation mode, the vehicle controller outputs an air pump operation command based on the air tank pressure value.

4. The intelligent connected bus air pump control method as described in claim 3, characterized in that, If the pressure value of the gas storage tank is less than 650 Kpa Then, the air pump will be output as a working command to control the air pump to start pumping air. If the pressure value of the air storage tank is greater than or equal to 650 kPa and less than 950 kPa, the output air pump working command is equal to the working command of the previous moment. If the pressure in the air reservoir is greater than or equal to 950 kPa, the vehicle controller starts timing. If the time signal exceeds two minutes and no exhaust switch signal is detected, an air pump operation command is output to control the air pump to stop pumping air. If the time signal does not exceed two minutes and an exhaust switch signal is detected, an air pump operation command is output after a 4-second delay to control the air pump to stop pumping air.

5. The intelligent connected bus air pump control method as described in claim 1, characterized in that, When the vehicle controller determines that the vehicle is in active inflation mode, the vehicle controller outputs an air pump working command to make the air pump start inflating while the vehicle controller starts timing. If the time signal exceeds 10 minutes, the vehicle controller outputs an air pump operation command to stop the air pump from pumping air, generates and stores a 10-minute air pumping completion flag, and closes the active air pumping switch. The 10-minute air pumping completion flag is set to 1. If the time signal does not exceed 10 minutes, the vehicle enters a low-pressure state and generates and stores a 10-minute inflation completion flag. The air pump stops inflating, and the 10-minute inflation completion flag is 0.

6. The intelligent connected bus air pump control method as described in claim 5, characterized in that, When the vehicle controller is powered on again, it acquires the ten-minute air inflation completion flag. If the ten-minute inflation complete flag is set to 1, the vehicle controller determines whether the vehicle has entered the active inflation state based on the active inflation switch signal. If the 10-minute inflation completion flag is 0, the vehicle controller will directly control the vehicle to enter active inflation mode, and the vehicle controller will restart the timer.

7. An intelligent connected bus air pump control system, characterized in that, This includes the vehicle controller, active air pump switch, pressure sensor, air pump, and exhaust switch; The active air pump switch is used to control whether the vehicle enters the active air pumping state; the pressure sensor is set in the air tank and is used to collect the air tank pressure value; the vehicle controller is used to execute the intelligent connected bus air pump control method according to any one of claims 1-6; the air pump is used to pump air according to the air pump working command output by the vehicle controller; and the exhaust switch is used to control whether the air tank exhausts air according to the air tank pressure value.

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