Control method of pressurization system and pressurization system

Abstract

The embodiment of the invention relates to a detection device, in particular to a control method of a pressurization system and the pressurization system.The control method comprises the following steps that the air inlet pressure of an air compressor during loading operation is obtained in real time; according to the obtained air inlet pressure, whether the air inlet pressure of the air compressor needs to be adjusted or not is judged; and if it is judged that the air inlet pressure of the air compressor needs to be adjusted, the rotating speed of the air compressor is adjusted. Compared with the prior art, due to the fact that the pressurization system achieves pressurization through the air compressor, the use requirement of a large-flow scene can be met, and compared with the scheme that the pressurization system is controlled by detecting the exhaust pressure of the pressurizer, the use cost is reduced. The change of the rotating speed of the air compressor by detecting the air inlet pressure means that the work needing to be done by the air compressor in the compression process can be greatly reduced, so that the energy consumption of the air compressor can be effectively reduced.

Description

Technical Field

[0001] Embodiments of the present invention relate to a supercharging device, and more particularly to a control method of a supercharging system and a supercharging system. Background Art

[0002] The supercharging system is a key technology used in modern engines to improve intake efficiency, increase engine power and torque. By increasing the air pressure entering the engine cylinders, it enables the engine to burn more fuel with the same displacement, thereby improving engine performance and fuel economy.

[0003] Traditional superchargers typically use a compressor to boost pressure. A compressor typically uses a piston to reciprocate within a cylinder, drawing in and compressing gas before discharging the high-pressure gas. However, due to the relatively low flow rate of compressed air, a compressor is generally only suitable for low-flow scenarios. Furthermore, the equipment is expensive and requires high maintenance. Furthermore, the relatively complex structure of a compressor requires a cooling system and air storage tank to stabilize the output pressure and temperature, resulting in high operating costs.

[0004] Furthermore, while traditional supercharging systems typically monitor the exhaust gas pressure at the supercharger to accurately control it, exhaust pressure monitoring is often indirect and cannot directly reflect the internal status of the supercharger. For example, excessive exhaust pressure could be caused by an internal blockage or a faulty wastegate valve. Therefore, accurate control of the supercharging system based solely on exhaust pressure monitoring is difficult. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to design a control method and a boosting system for a boosting system, which are not only simple in structure but also can meet the needs of large flow scenarios.

[0006] To achieve the above objectives, an embodiment of the present invention provides a control method for a supercharging system, wherein the supercharging system performs supercharging by an air compressor, and the control method comprises the following steps:

[0007] Real-time acquisition of the air intake pressure of the air compressor during loading operation;

[0008] According to the obtained intake pressure, determining whether it is necessary to adjust the intake pressure of the air compressor;

[0009] If it is determined that the air intake pressure of the air compressor needs to be adjusted, the speed of the air compressor is adjusted.

[0010] In addition, an embodiment of the present invention further provides a boosting system, comprising:

[0011] air compressor;

[0012] A pressure detection module, used to detect the intake pressure of the air compressor during loading operation;

[0013] A main control module is communicatively connected to the detection module and the air compressor respectively; the main control module is used to obtain the intake pressure measured by the detection module in real time, and judge whether it is necessary to adjust the intake pressure of the air compressor based on the obtained intake pressure, and adjust the speed of the air compressor when it is determined that the intake pressure of the air compressor needs to be adjusted.

[0014] Compared with the prior art, the embodiments of the present invention can meet the usage requirements of large flow scenarios because the boosting system achieves boosting through an air compressor, and because the boosting system determines whether the intake pressure of the air compressor needs to be adjusted by detecting the intake pressure of the air compressor during loaded operation, and when it is determined that the intake pressure of the air compressor needs to be adjusted, the intake pressure of the air compressor can be changed by adjusting the speed of the air compressor. Compared with the solution of controlling the boosting system by detecting the exhaust pressure of the booster, changing the speed of the air compressor by detecting the intake pressure means that the work required to be done by the air compressor during the compression process can be greatly reduced, thereby effectively reducing the energy consumption of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a flow chart of a control method when a boosting system detects the intake pressure of an air compressor in some embodiments of the present invention;

[0016] Figure 2 This is a schematic diagram of a flow chart of the boosting system adjusting the speed of the air compressor in some embodiments of the present invention;

[0017] Figure 3 This is a flow chart of a control method when a boosting system detects the exhaust pressure of an air compressor in some embodiments of the present invention;

[0018] Figure 4 This is a system module block diagram of a boosting system in some embodiments of the present invention. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in the embodiments of the present invention to help readers better understand the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented.

[0020] Example 1

[0021] The first embodiment of the present invention relates to a control method for a supercharging system, wherein the supercharging system is supercharging by an air compressor. Figure 1 As shown, the control method includes the following steps:

[0022] Step 110: obtaining the intake pressure of the air compressor during loading operation in real time.

[0023] Step 120: Determine whether the air intake pressure of the air compressor needs to be adjusted based on the obtained air intake pressure.

[0024] In step 130 , if it is determined that the air intake pressure of the air compressor needs to be adjusted, the speed of the air compressor is adjusted.

[0025] It is not difficult to see from the above content that since the boosting system achieves boosting through an air compressor, it can meet the usage requirements of large-flow scenarios, and since the boosting system determines whether the intake pressure of the air compressor needs to be adjusted by detecting the intake pressure of the air compressor during loaded operation, and when it is determined that the intake pressure of the air compressor needs to be adjusted, the intake pressure of the air compressor can be changed by adjusting the speed of the air compressor. Compared with the solution of controlling the boosting system by detecting the exhaust pressure of the booster, changing the speed of the air compressor by detecting the intake pressure means that the work required by the air compressor during the compression process can be greatly reduced, thereby effectively reducing the energy consumption of the air compressor.

[0026] Specifically, in some embodiments, in the step of determining whether the speed of the air compressor needs to be adjusted based on the obtained intake pressure, that is, step 120 specifically includes:

[0027] Compare the obtained intake pressure with the rated intake pressure.

[0028] If the obtained intake pressure is equal to the rated intake pressure, it is determined that there is no need to adjust the intake pressure of the air compressor.

[0029] If the obtained intake pressure is not equal to the rated intake pressure, it is determined that the intake pressure of the air compressor needs to be adjusted.

[0030] In addition, in order to obtain the intake pressure of the air compressor in real time, in some embodiments, the supply pressure of the air supply device that supplies air to the air compressor can be monitored in real time. For example, a pressure detection module can be set on the intake side of the air compressor or on the outlet side of the air supply device. For example, the pressure detection module can be a pressure sensor, and the intake pressure of the air compressor can be detected in real time through the pressure detection module. Moreover, in some embodiments, when setting the rated intake pressure, the rated intake pressure can be set according to the current boost scenario. When the obtained intake pressure is equal to the rated intake pressure, it means that the intake pressure obtained at this time just meets the exhaust requirements currently required by the boost system.

[0031] Furthermore, it should be noted that if Figure 2 As shown, in the step of adjusting the speed of the air compressor, that is, step 130 specifically includes:

[0032] Step 1301: Calculate the difference between the intake pressure and the rated intake pressure.

[0033] Step 1302: Determine whether the calculated difference is less than zero.

[0034] Step 1303: If it is determined that the difference is not less than zero, the speed of the air compressor is reduced.

[0035] In step 1315, if the difference is determined to be less than zero, the compressor speed is increased. As can be seen from this, when the calculated difference is greater than zero, it indicates that the boost system's intake pressure is greater than the rated pressure, meaning the boost system's intake pressure is too high, and therefore the compressor speed needs to be reduced. On the other hand, when the calculated difference is less than zero, it indicates that the boost system's intake pressure is less than the rated pressure, meaning the boost system's intake pressure is too low, and therefore the compressor speed needs to be increased.

[0036] In addition, when the intake pressure of the air compressor is too high, it may cause the air compressor to detonate and excessive wear of the connecting rod, piston, etc. Therefore, in order to protect the air compressor when the intake pressure of the air compressor is too high, a pressure relief valve can be set on the air compressor. Therefore, after determining that the difference between the intake pressure and the rated intake pressure is not less than zero, that is, after step 1302, if Figure 2 As shown, the control method further includes the following sub-steps:

[0037] Step 1304: Determine whether to perform a pressure relief operation on the air compressor based on the obtained intake pressure.

[0038] Step 1305: If it is determined that the pressure relief operation is to be performed on the air compressor, the pressure relief valve of the boosting system is opened to allow the pressure relief valve to continuously discharge gas to the outside.

[0039] Step 1306: If it is determined that the pressure relief operation is not to be performed on the air compressor, the pressure relief valve of the boosting system is closed.

[0040] Since the difference between the calculated air compressor intake pressure and the rated intake pressure is not less than zero, it means that the air compressor intake pressure is greater than the rated intake pressure. Therefore, in order to avoid the problem of excessive intake pressure causing detonation and damage to the air compressor, it is necessary to determine whether to directly relieve the pressure on the air compressor based on the obtained intake pressure. For example, an intake upper limit pressure can be set in advance for the boost system. This intake upper limit pressure is a safety pressure to protect the air compressor, and this intake upper limit pressure should be greater than the rated intake pressure. Therefore, once the difference between the calculated air compressor intake pressure and the rated intake pressure is not less than zero, the current intake pressure can be compared with the intake upper limit pressure. If the obtained intake pressure is greater than the intake upper limit pressure, it is determined that the air compressor can be relieved. If the obtained intake pressure is less than or equal to the intake upper limit pressure, it is determined that the air compressor will not be relieved.

[0041] However, as a preferred solution, in other embodiments, the boosting system further includes an intake buffer tank connected to the pressure relief valve and configured to receive gas exhausted from the pressure relief valve. It is readily apparent that the intake buffer tank can store excess gas exhausted from the air compressor, thereby effectively reducing pressure fluctuations in the air compressor of the boosting system, ensuring smooth airflow and preventing damage to equipment caused by pressure fluctuations.

[0042] It is not difficult to see from the above content that when the intake pressure of the air compressor is too high, the air compressor will be damaged. Conversely, when the intake pressure of the air compressor is too low, the speed of the air compressor will continue to increase, which will not only aggravate the wear of the internal parts of the air compressor, but also cause the energy consumption of the entire boosting system to continue to increase. Therefore, in order to reduce the energy consumption of the air compressor and prevent excessive wear of the air compressor when the intake pressure of the air compressor is insufficient, in other embodiments, after determining that the difference is less than zero, that is, after step 1302, and before increasing the speed of the air compressor, that is, before step 1315, as shown in FIG. Figure 2 As shown, the control method further includes the following sub-steps:

[0043] Step 1307: Determine whether to perform a pressure boost operation on the air compressor based on the obtained intake pressure.

[0044] In step 1308, if it is determined that the air compressor is to be boosted, the air intake valve of the boost system is closed to make the air compressor run at no load. If it is determined that the air compressor is not to be boosted, the speed of the air compressor is directly increased, i.e., step 1315 is executed.

[0045] Specifically, in the step of determining whether to perform a pressure boost operation on the air compressor according to the obtained intake pressure, that is, step 1307 specifically includes:

[0046] Compare the obtained intake pressure with the intake lower limit pressure.

[0047] If the obtained intake pressure is lower than the intake lower limit pressure, it is determined that a pressure boost operation is performed on the air compressor.

[0048] If the obtained intake pressure is greater than or equal to the intake lower limit pressure, it is determined that the pressure boost operation is not performed on the air compressor.

[0049] When the difference between the calculated air compressor intake pressure and the rated intake pressure is less than zero, it indicates that the air compressor intake pressure is less than the rated intake pressure. Therefore, in order to avoid an increase in energy consumption due to excessively high compressor speed, it is necessary to determine whether to perform a pressure boost operation on the air compressor based on the obtained intake pressure. For example, a lower intake pressure limit can be pre-set for the boost system, and this lower intake pressure limit should be less than the rated intake pressure. Therefore, once the difference between the calculated air compressor intake pressure and the rated intake pressure is less than zero, the current intake pressure can be compared with the lower intake pressure limit. If the obtained intake pressure is less than the lower intake pressure limit, it indicates that the air compressor intake pressure is too low. Simply increasing the compressor speed will not only significantly increase the compressor's energy consumption, but will also fail to effectively increase the compressor's intake pressure. In this case, it can be determined that a pressure boost operation is performed on the air compressor. On the contrary, when the obtained intake pressure of the air compressor is greater than or equal to the lower intake pressure, it means that the intake pressure of the air compressor can be immediately restored to the rated intake pressure by simply increasing the speed of the air compressor. At this time, it is determined that the boost operation will not be performed on the air compressor, and step 1315 can be directly executed.

[0050] Furthermore, in order to effectively increase the intake pressure of the air compressor after determining that the air compressor performs a boost operation, an intake valve can be pre-installed on the air compressor of the boost system. Therefore, when it is determined that the air compressor performs a boost operation, the intake valve of the air compressor can be closed. At this time, the air compressor of the boost system can no longer take in air, so that the air compressor can only run at no load, and the air compressor can maintain a stable speed, thereby effectively reducing the energy consumption of the boost system and avoiding excessive wear of the air compressor. In addition, since the internal pressure of the air compressor continues to increase after the intake valve is closed, this pressure is the intake pressure of the air compressor. Therefore, in order to reload the air compressor, in other embodiments, after step 1308, as Figure 2 As shown, the control method further includes the following steps:

[0051] Step 1309: obtaining the intake pressure of the air compressor when it is running at no load in real time.

[0052] Step 1310: Determine whether to perform a loading operation on the air compressor based on the obtained intake pressure of the air compressor when it is running at no load.

[0053] Step 1311: If it is determined that the air compressor is to be loaded, the air intake valve of the supercharging system is opened to load the air compressor. If it is determined that the air compressor is not to be loaded, the process returns to step 1309.

[0054] Furthermore, it should be noted that, in the step of determining whether to load the air compressor based on the obtained intake pressure of the air compressor when it is running at no load, that is, step 1310 specifically includes:

[0055] Compare the obtained intake pressure of the air compressor when it is running at no load with the rated intake pressure.

[0056] If the intake pressure of the air compressor obtained when it is running at no load reaches the rated intake pressure, it is determined that the loading operation is performed on the air compressor. If the intake pressure of the air compressor obtained when it is running at no load does not reach the rated intake pressure, it is determined that the loading operation is not performed on the air compressor. Specifically, a pressure detection module can be set on the air compressor, and the intake pressure of the air compressor can be detected in real time by the pressure detection module. At the same time, the boosting system also compares the pressure measured by the pressure detection module, that is, the intake pressure, with the rated intake pressure. Once the obtained intake pressure reaches the rated intake pressure, it can be determined that the air compressor is performing the loading operation, so that the air compressor can resume loading operation.

[0057] In addition, as a preferred solution, in other embodiments, such as Figure 3 As shown, the control method further includes the following steps:

[0058] Step 310: obtaining in real time the first exhaust pressure of the air compressor during loading operation.

[0059] Step 320: Determine whether it is necessary to perform a no-load operation on the air compressor based on the obtained first exhaust pressure.

[0060] In step 330, if it is determined that the air compressor is to be operated at no load, the air intake valve of the supercharging system is closed to make the air compressor operate at no load. If it is determined that the air compressor is not to be operated at no load, the process returns to step 310.

[0061] Step 340: Obtain the no-load operation time of the air compressor.

[0062] Step 350: Determine whether to perform a sleep operation on the air compressor based on the obtained no-load operation time of the air compressor.

[0063] In step 360, if it is determined that the air compressor is to be put into a dormant state, the air compressor is controlled to stop operating, entering a dormant state, and the pressure relief valve of the boosting system is opened to continuously discharge gas. If it is determined that the air compressor is not to be put into a dormant state, the process returns to step 340.

[0064] From the above, it is not difficult to see that since the above control method can also obtain the first exhaust pressure of the air compressor during loaded operation in real time, and can determine whether it is necessary to perform no-load operation on the air compressor based on the obtained first exhaust pressure, for example, when the exhaust pressure of the air compressor is too high, the piston, cylinder, valve plate and other components inside the air compressor will be subjected to a greater load, resulting in increased wear of the components, thereby shortening the life of the air compressor. For another example, when the exhaust pressure of the air compressor is too high, the load on the air compressor motor will increase, and long-term operation may cause the motor to overload or even burn out. Therefore, once it is determined that the air compressor is to be operated no-load, the intake valve of the boost system can be closed to make the air compressor run no-load, thereby achieving the purpose of protecting the air compressor. Furthermore, when the air compressor is running at no load, the length of time the air compressor has been running at no load can be used to determine whether to put the air compressor into a sleep state. For example, a preset time can be set in advance. When the air compressor is running at no load, the length of time the air compressor has been running at no load can be compared with the preset time. Once the length of time the air compressor has been running at no load reaches or exceeds the preset time, it can be determined that the air compressor has been put into a sleep state, so that the air compressor can be stopped at this time, thereby greatly reducing the energy consumption of the air compressor. In addition, when it is determined that the air compressor has been put into a sleep state, the pressure relief valve of the boost system can be opened, causing the pressure relief valve to continuously discharge gas to the outside, thereby ensuring that the exhaust pressure of the air compressor is rapidly reduced.

[0065] In addition, in the step of determining whether it is necessary to perform no-load operation on the air compressor according to the obtained first exhaust pressure, that is, step 320 specifically includes:

[0066] The obtained first exhaust pressure is compared with the exhaust upper limit pressure.

[0067] If the obtained first exhaust pressure is greater than or equal to the exhaust upper limit pressure, it is determined that the air compressor is to be operated at no load.

[0068] If the obtained first exhaust pressure is less than the exhaust upper limit pressure, it is determined that the no-load operation is not performed on the air compressor.

[0069] In order to accurately determine whether the exhaust pressure of the air compressor is too high during loaded operation, an exhaust upper limit pressure can be pre-set, and the exhaust upper limit pressure is the safety pressure of the air compressor during exhaust. Therefore, once the first exhaust pressure of the air compressor during loaded operation is greater than or equal to the exhaust upper limit pressure, it means that the first exhaust pressure of the air compressor is too high. Therefore, in order to protect the air compressor, it can be determined that the air compressor is performing no-load operation. Conversely, when the first exhaust pressure of the air compressor during loaded operation is less than the exhaust upper limit pressure, it means that the first exhaust pressure of the air compressor is normal, and it can be determined that the air compressor is not performing no-load operation.

[0070] In addition, in order to reduce the exhaust pressure of the air compressor as quickly as possible when the first exhaust pressure of the air compressor is too high, in other embodiments, the boosting system further includes: another pressure relief valve, and the pressure relief valve is provided on the air compressor, so that when the first exhaust pressure of the air compressor is greater than or equal to the exhaust upper limit pressure, the other pressure relief valve can also be opened to discharge gas from the other pressure relief valve, thereby achieving the purpose of quickly reducing the exhaust pressure of the air compressor. However, as a preferred solution, in other embodiments, the boosting system further includes: an exhaust buffer tank, and the exhaust buffer tank is also connected to the air compressor, and the exhaust buffer tank is used to receive the gas discharged from the other pressure relief valve. It is not difficult to find that the exhaust buffer tank can absorb and alleviate the pressure fluctuations in the exhaust system, thereby ensuring a smooth airflow and preventing pressure fluctuations from causing impact or damage to the user end.

[0071] Furthermore, it is worth noting that in order to enable the air compressor to resume loaded operation as soon as possible after the air compressor is running at no load or after the air compressor enters a dormant state, in other embodiments, after closing the air compressor intake valve to make the air compressor run at no load, that is, after step 330. Or after controlling the air compressor to stop working and make the air compressor enter a dormant state, and opening the air compressor pressure relief valve to make the pressure relief valve continuously discharge gas, that is, after step 360, as shown in FIG. Figure 3 As shown, the control method further includes the following sub-steps:

[0072] Step 370: Acquire in real time the second exhaust pressure of the air compressor when it is running at no load or in a dormant state.

[0073] Step 380: Determine whether to re-perform the loading operation on the air compressor based on the obtained second exhaust pressure.

[0074] In step 390, if it is determined that the air compressor is to be loaded, the air intake valve of the air compressor is opened and the pressure relief valve of the air compressor is closed to reload the air compressor and return to step 310. If it is determined that the air compressor is not to be loaded, return to step 370.

[0075] From the above, it is not difficult to see that when the air compressor is in loaded operation, the air compressor will not enter no-load operation or dormant state until the first exhaust pressure reaches or exceeds the exhaust upper limit pressure. In addition, when the air compressor enters no-load operation or dormant state, the second exhaust pressure when the air compressor is in no-load operation or dormant state can be obtained and compared with the preset exhaust pressure. For example, the preset exhaust pressure can be the rated exhaust pressure of the air compressor, and the rated exhaust pressure should be less than the exhaust upper limit pressure. Therefore, once the obtained preset exhaust pressure is less than the preset exhaust pressure, it means that the exhaust pressure of the air compressor has stabilized and is safe. At this time, it can be determined that the air compressor is performing a loading operation, so that the boosting system can open the air compressor's intake valve and close the air compressor's pressure relief valve, so that the air compressor can reload and operate.

[0076] Example 2

[0077] The second embodiment of the present invention relates to a boosting system, such as Figure 4 As shown, the boosting system includes: an air compressor 1, a pressure detection module 4 and a main control module 5.

[0078] The air compressor 1 has an air inlet side and an air outlet side away from the air inlet side, and the air compressor is used to receive low-pressure gas through the air inlet side and discharge high-pressure gas through the air outlet side after compression. Figure 4 As shown, the pressure detection module 4 is used to detect the intake pressure of the air compressor 1 during loading operation.

[0079] In addition, in some embodiments, the main control module 5 is respectively communicated with the pressure detection module 4 and the air compressor 1, and the main control module 5 is used to obtain the intake pressure measured by the pressure detection module 4 in real time, and can determine whether the intake pressure of the air compressor 1 needs to be adjusted based on the obtained intake pressure, and when it is determined that the intake pressure of the air compressor needs to be adjusted, the speed of the air compressor 1 is adjusted.

[0080] It is not difficult to see from the above content that since the boosting system achieves boosting through the air compressor 1, it can meet the usage requirements of large flow scenarios, and since the boosting system detects the intake pressure of the air compressor 1 during loading operation through the pressure detection module 4, the main control module 5 can determine whether it is necessary to adjust the intake pressure of the air compressor 1, and when the main control module 5 determines that the intake pressure of the air compressor 1 needs to be adjusted, it can change the intake pressure of the air compressor by adjusting the speed of the air compressor 1. Compared with the solution of controlling the boosting system by detecting the exhaust pressure of the booster, the boosting system changes the speed of the air compressor by detecting the intake pressure of the air compressor 1 by the pressure detection module 4, which means that the work required by the air compressor 1 during the compression process can be greatly reduced, thereby effectively reducing the energy consumption of the air compressor.

[0081] It is clear from the above that this embodiment is an embodiment of a supercharging system corresponding to Example 1. This embodiment can be implemented in conjunction with Example 1. The relevant technical details mentioned in Example 1 are still valid in this embodiment and will not be repeated here to reduce repetition. Accordingly, the relevant technical details mentioned in this embodiment can also be applied in Example 1.

[0082] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present invention, and that in actual applications, various changes may be made in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A control method for a supercharging system, characterized in that: The boosting system is boosted by an air compressor, and the control method comprises the following steps: Real-time acquisition of the air intake pressure of the air compressor during loading operation; According to the obtained intake pressure, determining whether it is necessary to adjust the intake pressure of the air compressor; If it is determined that the intake pressure of the air compressor needs to be adjusted, the speed of the air compressor is adjusted.

2. The control method of the supercharging system according to claim 1, characterized in that: The step of determining whether the speed of the air compressor needs to be adjusted according to the obtained intake pressure specifically includes: comparing the obtained intake pressure with the rated intake pressure; If the obtained intake pressure is equal to the rated intake pressure, it is determined that there is no need to adjust the intake pressure of the air compressor; If the obtained intake pressure is not equal to the rated intake pressure, it is determined that the intake pressure of the air compressor needs to be adjusted.

3. The control method of the supercharging system according to claim 2, characterized in that: The step of adjusting the rotation speed of the air compressor specifically includes: calculating a difference between the intake pressure and the rated intake pressure; Determining whether the calculated difference is less than zero; If it is determined that the difference is not less than zero, reducing the speed of the air compressor; If it is determined that the difference is less than zero, the rotation speed of the air compressor is increased.

4. The control method of the supercharging system according to claim 3, characterized in that: After determining that the difference is not less than zero, the control method further includes the following sub-steps: Determining whether to perform a pressure relief operation on the air compressor according to the obtained intake pressure; If it is determined that the air compressor is to be subjected to a pressure relief operation, the pressure relief valve of the boosting system is opened, so that the pressure relief valve continuously discharges gas outwards; If it is determined that the pressure relief operation is not to be performed on the air compressor, the pressure relief valve of the boosting system is closed.

5. The control method of the supercharging system according to claim 4, characterized in that: The step of determining whether to perform a pressure relief operation on the air compressor according to the obtained intake pressure specifically includes: Comparing the obtained intake pressure with the intake upper limit pressure; If the obtained intake pressure is greater than the intake upper limit pressure, it is determined to perform a pressure relief operation on the air compressor; If the obtained intake pressure is less than or equal to the intake upper limit pressure, determining not to perform the pressure relief operation on the air compressor; Wherein, the intake upper limit pressure is greater than the rated intake pressure.

6. The control method of the supercharging system according to claim 3, characterized in that: After determining that the difference is less than zero and before increasing the speed of the air compressor, the control method further includes the following sub-steps: determining whether to perform a pressure boost operation on the air compressor according to the obtained intake pressure; If it is determined that a boost operation is to be performed on the air compressor, the air intake valve of the boost system is closed to make the air compressor run at no load; If it is determined that the boost operation is not to be performed on the air compressor, the air intake valve of the boost system is opened to allow the air compressor to operate under load.

7. The control method of the supercharging system according to claim 6, characterized in that: The step of determining whether to perform a pressure boost operation on the air compressor according to the obtained intake pressure specifically includes: Comparing the obtained intake pressure with the intake lower limit pressure; If the obtained intake pressure is less than the intake lower limit pressure, it is determined to perform a pressure boost operation on the air compressor; If the obtained intake pressure is greater than or equal to the intake lower limit pressure, determining not to perform a pressure boost operation on the air compressor; The lower limit intake pressure is lower than the rated intake pressure.

8. The control method of the supercharging system according to claim 6, characterized in that: After closing the air intake valve of the boosting system to allow the air compressor to operate at no load, the control method further includes the following steps: Real-time acquisition of the air intake pressure of the air compressor when it is running at no load; determining whether to perform a loading operation on the air compressor according to the obtained intake pressure of the air compressor when it is running at no load; If it is determined that a loading operation is to be performed on the air compressor, the air intake valve of the supercharging system is opened to enable the air compressor to operate in a loaded manner.

9. The control method of the supercharging system according to claim 8, characterized in that: The step of determining whether to load the air compressor based on the obtained intake pressure of the air compressor when it is running at no load specifically includes: Comparing the obtained intake pressure of the air compressor when it is running at no load with the rated intake pressure; If the intake pressure of the air compressor when it is running at no load reaches the rated intake pressure, it is determined that a loading operation is to be performed on the air compressor; If the intake pressure of the air compressor during no-load operation does not reach the rated intake pressure, it is determined that no loading operation is performed on the air compressor.

10. The method for controlling a supercharging system according to any one of claims 1 to 9, wherein: The control method further comprises the following steps: Real-time acquisition of the first exhaust pressure of the air compressor during loading operation; determining whether it is necessary to perform no-load operation on the air compressor according to the obtained first exhaust pressure; If it is determined that the air compressor is to be operated at no load, closing the air intake valve of the boosting system to make the air compressor operate at no load; Obtaining the no-load running time of the air compressor; Determining whether to perform a sleep operation on the air compressor according to the obtained no-load operation time of the air compressor; If it is determined that the air compressor is to be put into a dormant state, the air compressor is controlled to stop working, so that the air compressor enters a dormant state, and the pressure relief valve of the boosting system is opened so that the pressure relief valve continuously discharges gas to the outside.

11. The control method of the supercharging system according to claim 10, characterized in that: The step of judging whether it is necessary to perform no-load operation on the air compressor according to the obtained first exhaust pressure specifically includes: comparing the obtained first exhaust pressure with the exhaust upper limit pressure; If the obtained first exhaust pressure is greater than or equal to the exhaust upper limit pressure, it is determined that the air compressor is to be operated at no load; If the obtained first exhaust pressure is lower than the exhaust upper limit pressure, it is determined that the air compressor is not to be operated without loading.

12. The control method of the supercharging system according to claim 10, characterized in that: After closing the air intake valve of the boosting system to allow the air compressor to operate at no load, or after controlling the air compressor to stop working and enter a dormant state, and opening the pressure relief valve of the boosting system to allow the pressure relief valve to continuously discharge gas, the control method further includes the following sub-steps: Real-time acquisition of a second exhaust pressure of the air compressor when the air compressor is running at no load or in a dormant state; determining whether to re-perform a loading operation on the air compressor according to the obtained second exhaust pressure; If it is determined that a loading operation is to be performed on the air compressor, the air intake valve of the boosting system is opened, and the pressure relief valve of the boosting system is closed, so that the air compressor is reloaded and operated.

13. A boosting system, characterized in that: include: An air compressor; the air compressor has an air inlet side and an air outlet side away from the air inlet side, the air compressor is used to receive low-pressure gas through the air inlet side and discharge high-pressure gas through the air outlet side after compression; A pressure detection module, used to detect the intake pressure of the air compressor during loading operation; A main control module is respectively connected to the pressure detection module and the air compressor for communication; the main control module is used to obtain the intake pressure measured by the pressure detection module in real time, and judge whether it is necessary to adjust the intake pressure of the air compressor according to the obtained intake pressure, and adjust the speed of the air compressor when it is determined that the intake pressure of the air compressor needs to be adjusted.

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