Adjusting method and device of air suspension system, electronic equipment and storage medium

Abstract

The invention relates to the technical field of vehicle control, and provides an adjusting method and device of an air suspension system, electronic equipment and a storage medium. According to the method, the air bag pressure value of each air spring in the air suspension system is obtained, and the air capacity of each air spring is determined according to the air bag pressure value of each air spring; according to the gas capacity of each air spring, the target rotating speed of a compressor in the air suspension system is determined; in response to the height adjusting instruction for the air suspension system, the compressor is controlled to adjust the height of the air suspension system according to the target rotating speed, the air capacity of the air spring is accurately obtained by obtaining the air bag pressure value of the air spring, and then the target rotating speed of the compressor is determined according to the air capacity of the air spring; the target rotating speed of the compressor is matched with the gas capacity of the air spring.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle control, and particularly to a method, device, electronic device and storage medium for adjusting an air suspension system. Background Art

[0002] With the continuous development of technology, vehicles have become an important means of transportation indispensable in people's daily lives, and comfort is one of the important indicators for measuring vehicle performance. As a key component affecting vehicle comfort and handling, the air suspension system plays an important role in alleviating road bumps and enhancing the riding experience.

[0003] In related technologies, the air suspension system cannot adjust the rotational speed of the compressor according to its current state, resulting in a poor user experience of the air suspension system. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a method, device, electronic device and storage medium for adjusting an air suspension system to solve the problem in related technologies that the air suspension system cannot adjust the rotational speed of the compressor according to its current state, resulting in a poor user experience of the air suspension system.

[0005] In the first aspect of the embodiments of the present application, a method for adjusting an air suspension system is provided. The method includes: obtaining the airbag pressure value of each air spring in the air suspension system, and determining the gas capacity of each air spring according to the airbag pressure value of each air spring; determining the target rotational speed of the compressor in the air suspension system according to the gas capacity of each air spring; and in response to a height adjustment instruction for the air suspension system, controlling the compressor to adjust the height of the air suspension system according to the target rotational speed.

[0006] In the second aspect of the embodiments of the present application, an adjustment device for an air suspension system is provided. The device includes: an obtaining module, configured to obtain the airbag pressure value of each air spring in the air suspension system, and determine the gas capacity of each air spring according to the airbag pressure value of each air spring; a determining module, configured to determine the target rotational speed of the compressor in the air suspension system according to the gas capacity of each air spring; and an adjusting module, configured to, in response to a height adjustment instruction for the air suspension system, control the compressor to adjust the height of the air suspension system according to the target rotational speed.

[0007] In the third aspect of the embodiments of the present application, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the above method are implemented.

[0008] In the fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0009] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: The method in the embodiments of the present application obtains the airbag pressure value of each air spring in the air suspension system, and determines the gas capacity of each air spring according to the airbag pressure value of each air spring; according to the gas capacity of each air spring, the target speed of the compressor in the air suspension system is determined; in response to a height adjustment instruction for the air suspension system, the compressor is controlled according to the target speed to adjust the height of the air suspension system. The present application accurately obtains the gas capacity of the air spring by obtaining the airbag pressure value of the air spring, and then determines the target speed of the compressor according to the gas capacity of the air spring, so that the target speed of the compressor matches the gas capacity of the air spring. Subsequently, the compressor is controlled according to the target speed to adjust the height of the air suspension system, realizing the requirement of real-time and dynamic matching of the compressor speed and the gas capacity of the air spring, making the output of the compressor more efficient and accurate, and avoiding the problem that the air suspension system cannot adjust the speed of the compressor according to its own current state due to fixing the speed of the compressor, resulting in a poor user experience of the air suspension system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic flowchart of a method for adjusting an air suspension system provided by an embodiment of the present application;

[0012] Figure 2 It is a schematic flowchart of another method for adjusting an air suspension system provided by an embodiment of the present application;

[0013] Figure 3 It is a schematic flowchart of still another method for adjusting an air suspension system provided by an embodiment of the present application;

[0014] Figure 4 It is a schematic flowchart of yet another method for adjusting an air suspension system provided by an embodiment of the present application;

[0015] Figure 5 It is a schematic flowchart of still another method for adjusting an air suspension system provided by an embodiment of the present application;

[0016] Figure 6 It is a schematic flowchart of another optional air suspension system adjustment method provided by an embodiment of the present application;

[0017] Figure 7 It is a schematic flowchart of yet another optional air suspension system adjustment method provided by an embodiment of the present application;

[0018] Figure 8 It is a schematic structural diagram of an air suspension system adjustment device provided by an embodiment of the present application;

[0019] Figure 9 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0020] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0021] The following will describe in detail an air suspension system adjustment method and device according to an embodiment of the present application with reference to the accompanying drawings.

[0022] Figure 1 It is an air suspension system adjustment method provided by an embodiment of the present application. As Figure 1 shown, the method includes:

[0023] S101. Obtain the airbag pressure value of each air spring in the air suspension system, and determine the gas capacity of each air spring according to the airbag pressure value of each air spring;

[0024] S102. Determine the target speed of the compressor in the air suspension system according to the gas capacity of each air spring;

[0025] S103. In response to a height adjustment instruction for the air suspension system, control the compressor to adjust the height of the air suspension system according to the target speed.

[0026] It can be understood that the adjustment method of the air suspension system provided in this example is applied to a vehicle equipped with an air suspension system. The above-mentioned vehicle includes vehicles with autonomous driving or intelligent driving capabilities (including passenger-carrying vehicles (such as sedans, buses, coaches, minibuses, etc.), cargo-carrying vehicles (such as ordinary trucks, van trucks, semi-trailer trucks, enclosed trucks, tank trucks, flatbed trucks, container trucks, dump trucks, special-structured trucks), special vehicles (such as logistics delivery vehicles, automated guided vehicles AGV, patrol vehicles, cranes, hoists, excavators, bulldozers, forklifts, road rollers, loaders, off-road engineering vehicles, armored engineering vehicles, sewage treatment vehicles, sanitation vehicles, vacuum cleaners, floor scrubbers, sprinkler trucks, floor sweeping robots, food delivery robots, shopping guide robots, lawn mowers, golf carts, etc.), vehicles with entertainment functions (such as entertainment vehicles, autonomous driving devices in amusement parks, segways, etc.), rescue vehicles (such as fire trucks, ambulances, power repair vehicles, engineering rescue vehicles, etc.)).

[0027] It can be understood that the air suspension system includes devices such as a control unit, an air storage tank, an air spring, and a compressor. Among them, when the height of the vehicle needs to be increased, the control unit will, according to the signal of the sensor, determine that gas needs to be replenished into the air spring, and the compressor will start, suck in outside air, and generate high-pressure gas through compression. The control system opens the air supply solenoid valve connecting the compressor and the air spring, and the high-pressure gas enters the air spring. As the high-pressure gas enters, the air spring expands and its height rises, thereby gradually increasing the height of the vehicle. When the vehicle height reaches the target value, the control system closes the air supply solenoid valve and stops the operation of the compressor at the same time. In some examples, the compressor will also store the excess gas in the air storage tank, and subsequent gas replenishment for the air spring can be directly carried out through the air storage tank; when the height of the vehicle needs to be decreased, the control unit will, according to the signal of the sensor, determine that the air spring needs to be deflated, and the control unit controls the compressor to run in reverse to absorb the gas in the air spring and release it to the air storage tank. The volume of the air spring decreases, and the vehicle height gradually decreases.

[0028] It can be understood that at least two air springs are provided in the air suspension system; exemplarily, when two air springs are provided in the air suspension system, the two air springs are arranged on the front axle of the vehicle (that is, each air spring corresponds to a wheel on the front axle), and when four air springs are provided in the air suspension system, two air springs are arranged on the front axle of the vehicle and two air springs are arranged on the rear axle of the vehicle (that is, each air spring corresponds to a wheel on the rear axle).

[0029] It can be understood that the rising rate and falling rate of the air spring in the air suspension system are affected by the total gas volume of the air suspension system. Specifically, when the total gas volume in the air suspension system is relatively large, for the same compression stroke, the increase in gas pressure will be relatively small. When the total gas volume in the air suspension system is relatively small, for the same compression stroke, the increase in gas pressure will be relatively large. For the above reasons, when other parameters (such as temperature and the rotational speed of the compressor) remain unchanged, the higher the total gas volume in the air suspension system, the longer it takes for the air spring to rise or fall to the set height, and the lower the total gas volume in the air suspension system, the shorter it takes for the air spring to rise or fall to the set height.

[0030] Based on the above principle, the present application determines the gas volume of each air spring, and based on the gas volume of the air spring, determines the target rotational speed of the compressor in the air suspension system, so that the determined target rotational speed can match the gas volume of the air spring in the air suspension system.

[0031] It can be understood that in order to avoid the problems of the need to add additional sensors or inaccurate measurement caused by directly measuring the gas volume of each air spring in the air suspension system, the present application acquires the airbag pressure value of each air spring in the air suspension system. The airbag pressure value of the air spring can reflect the gas volume of the air spring. Therefore, in this example, the gas volume of each air spring can be determined according to the airbag pressure value of each air spring; among them, the detection of the airbag pressure value of the air spring can be achieved through a pressure sensor, which will not be elaborated here.

[0032] It can be understood that in some examples of the present application, the gas volume of the air spring can also be directly collected by setting a gas volume sensor, which will not be elaborated here.

[0033] It can be understood that in order to avoid the problem that the vibration of the vehicle during driving affects the air spring and causes inaccurate airbag pressure values of each air spring obtained, the present application acquires the vehicle state, and only when the vehicle state meets the pre-set pressure acquisition state, will it acquire the airbag pressure value of each air spring in the air suspension system; the above pressure acquisition state includes but is not limited to at least one of the following: (1) the state where the rising request response completion flag Flg_UpOver is 1; (2) the state where the falling request response completion flag Flg_DownOver is 1; (3) the state where the all-door closed flag Flg_AllDorClose is 1; (4) the state where the gear is shifted into or out of the p gear; (5) the state where the vehicle has just been powered on.

[0034] In some examples, after determining the target rotational speed, this application responds to a height adjustment instruction for the air suspension system and controls the compressor to adjust the height of the air suspension system according to the target rotational speed. Exemplarily, if the determined target rotational speed is 3000 rad / s, this application will control the compressor to adjust the height of the air suspension system according to 3000 rad / s.

[0035] According to the technical solution provided by the embodiments of this application, the airbag pressure value of each air spring in the air suspension system is obtained, and the gas volume of each air spring is determined according to the airbag pressure value of each air spring; according to the gas volume of each air spring, the target rotational speed of the compressor in the air suspension system is determined; in response to a height adjustment instruction for the air suspension system, the compressor is controlled to adjust the height of the air suspension system according to the target rotational speed. This application accurately obtains the gas volume of the air spring by obtaining the airbag pressure value of the air spring, and subsequently determines the target rotational speed of the compressor according to the gas volume of the air spring, so that the target rotational speed of the compressor matches the gas volume of the air spring. Subsequently, the compressor is controlled to adjust the height of the air suspension system according to the target rotational speed, realizing the requirement of real-time and dynamic matching of the compressor rotational speed and the gas volume of the air spring, making the output of the compressor more efficient and accurate, and avoiding the problem that the air suspension system cannot adjust the rotational speed of the compressor according to its current state due to fixing the rotational speed of the compressor, resulting in a poor user experience of the air suspension system.

[0036] In some embodiments, as Figure 2 shown, determining the gas volume of each air spring according to the airbag pressure value of each air spring includes:

[0037] S201. Obtain the mapping relationship between the pressure value and the gas volume;

[0038] S202. Match the airbag pressure value of each air spring with the mapping relationship between the pressure value and the gas volume to obtain the gas volume of each air spring.

[0039] It can be understood that when other parameters (such as temperature, height) of the air spring are the same, the airbag pressure value of the air spring is in a direct proportional relationship with the gas volume of the air spring. That is, the higher the airbag pressure value of the air spring, the higher the gas volume of the air spring, and the lower the airbag pressure value of the air spring, the lower the gas volume of the air spring.

[0040] Among them, the mapping relationship between the pressure value and the gas volume of the air spring in the air suspension system can be obtained by relevant personnel through testing the air spring, and the mapping relationship between the pressure value and the gas volume of the air spring in the air suspension system can be determined by a big data model according to various parameters of the air suspension system (such as the material of the air spring).

[0041] It can be understood that the present application does not limit the format of the mapping relationship between the pressure value and the gas volume. The above mapping relationship between the pressure value and the gas volume can be any format among key-value pairs, hash, tables, and databases.

[0042] It can be understood that each air spring in the air suspension system can correspond to a mapping relationship between a pressure value and a gas volume; for example, if the air suspension system includes a left front air spring, a right front air spring, a left rear air spring, and a right rear air spring, then the left front air spring corresponds to a mapping relationship between a pressure value and a gas volume, the right front air spring corresponds to a mapping relationship between a pressure value and a gas volume, the left rear air spring corresponds to a mapping relationship between a pressure value and a gas volume, and the right rear air spring corresponds to a mapping relationship between a pressure value and a gas volume.

[0043] In some examples, at least two air springs in the air suspension system correspond to a mapping relationship between a pressure value and a gas volume; for example, if the air suspension system includes a left front air spring, a right front air spring, a left rear air spring, and a right rear air spring, then the left front air spring and the right front air spring correspond to a mapping relationship between a pressure value and a gas volume, and the left rear air spring and the right rear air spring correspond to a mapping relationship between a pressure value and a gas volume.

[0044] The present application will match the airbag pressure value of each air spring with the mapping relationship between the pressure value and the gas volume to obtain the gas volume of each air spring. Exemplarily, taking the mapping relationship between the pressure value and the gas volume in the form of a table as an example, as shown in Table 1 below:

[0045] Table 1: Mapping Relationship Table between Pressure Value and Gas Volume

[0046] Pressure value P (bar) 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 … Gas volume (g) 0.15 0.16 0.17 0.18 0.19 0.2 0.21 0.22 0.23 0.24 0.25 …

[0047] As shown in Table 1 above, when the air spring is at a preset height and the temperature of the air spring is a predetermined temperature, if the airbag pressure value of the air spring is 3 bar, then the gas volume of the air spring is determined to be 0.15 g; if the airbag pressure value of the air spring is 3.5 bar, then the gas volume of the air spring is determined to be 0.16 g... If the airbag pressure value of the air spring is 8 bar, then the gas volume of the air spring is determined to be 0.25 g.

[0048] It can be understood that the relationship between the volume and temperature of a gas is clearly reflected in the gas state equation, especially in the ideal gas law. The ideal gas law is expressed as PV = nRT, where P represents the pressure of the gas, V represents the volume of the gas, n represents the amount of substance (i.e., the number of moles) of the gas, R is the ideal gas constant, and T represents the absolute temperature of the gas (usually in Kelvin). When other variables (such as pressure and amount of substance) are kept constant, the gas volume V is directly proportional to the absolute temperature T. This means that when the temperature of the gas increases, if the pressure remains constant, the volume of the gas will increase; conversely, when the temperature of the gas decreases, if the pressure remains constant, the volume of the gas will decrease.

[0049] Based on the above reasons, it can be known that the gas capacity of the air spring is also affected by temperature. Therefore, when constructing the mapping relationship between the pressure value and the gas capacity in this example, the influence of temperature on the gas capacity of the air spring can also be considered; subsequently, the temperature of the air spring (or the ambient temperature) is obtained, and then the obtained temperature and the airbag pressure value of the air spring are jointly matched with the mapping relationship between the pressure value and the gas capacity to obtain the gas capacity of each air spring, making the gas capacity of each air spring more accurate.

[0050] Exemplarily, taking the mapping relationship between the pressure value considering temperature and the gas capacity in the form of a table as an example, as shown in Table 2 below:

[0051] Table 2: Mapping relationship table of pressure value considering temperature and gas capacity.

[0052]

[0053] As shown in Table 1 above, when the air spring is at a preset height and the temperature of the air spring is 25 °C, if the airbag pressure value of the air spring is 3 bar, the gas capacity of the air spring is determined to be 0.16 g; if the airbag pressure value of the air spring is 3.5 bar, the gas capacity of the air spring is determined to be 0.25 g... If the airbag pressure value of the air spring is 8 bar, the gas capacity of the air spring is determined to be 0.25 g, and so on. When the temperature of the air spring is 35 °C, if the airbag pressure value of the air spring is 3 bar, the gas capacity of the air spring is determined to be 0.13 g; if the airbag pressure value of the air spring is 3.5 bar, the gas capacity of the air spring is determined to be 0.14 g... If the airbag pressure value of the air spring is 8 bar, the gas capacity of the air spring is determined to be 0.23 g.

[0054] In some examples, the present application can also take into account the influence of weather temperature and altitude on the gas capacity to correct the determined gas capacity and obtain a more accurate gas capacity. Specifically, a first correction value is determined based on the current altitude air pressure of the vehicle, a second correction value is determined based on the weather temperature, and the determined gas capacity is processed according to the first correction value and the second correction value to obtain an adjusted gas capacity. Processing the determined gas capacity according to the first correction value and the second correction value to obtain an adjusted gas capacity includes: performing a weighted process on the determined gas capacity according to the first correction value and the second correction value to obtain an adjusted gas capacity; that is, the adjusted gas capacity M2 = M1 * f n *f t , where M2 is the adjusted gas capacity, M1 is the gas capacity determined according to the airbag pressure value of each air spring, f n is the first correction value, and f t is the second correction value.

[0055] Among them, determining the first correction value based on the current altitude air pressure of the vehicle includes: matching the current altitude air pressure of the vehicle with the corresponding relationship between the preset altitude air pressure and the correction value to obtain the first correction value corresponding to the current altitude air pressure of the vehicle. Determining the second correction value based on the weather temperature includes: matching the weather temperature with the corresponding relationship between the preset temperature and the correction value to obtain the second correction value corresponding to the weather temperature.

[0056] According to the technical solution provided by the embodiment of the present application, the mapping relationship between the pressure value and the gas capacity is obtained; the airbag pressure value of each air spring is matched with the mapping relationship between the pressure value and the gas capacity to obtain the gas capacity of each air spring. The above steps take into account the relationship between the pressure value and the gas capacity, and subsequently, the accurate gas capacity of the air spring is obtained by acquiring the airbag pressure value of the air spring, thereby realizing the accurate acquisition of the gas capacity.

[0057] In some embodiments, as Figure 3 shown, determining the target speed of the compressor in the air suspension system according to the gas capacity of each air spring includes:

[0058] S301. Determine the total gas volume of the air suspension system according to the gas capacity of each air spring;

[0059] S302. Match the total gas volume of the air suspension system with the preset mapping relationship between the capacity and the speed to obtain the target speed.

[0060] It can be understood that in order for the target rotational speed to take into account the total gas volume of the air suspension system, the present application determines the total gas volume of the air suspension system according to the gas capacity of each air spring, and this total gas volume is the actual gas volume currently in the air suspension system.

[0061] Specifically, the total gas volume m of the air suspension system ALlOpre is:

[0062] m ALLOpre = m fl + m fr + m rl + m rr ;

[0063] In the formula, m ALLOpre is the total gas volume m in the air suspension system, m fl is the gas capacity corresponding to the left front air spring, m fr is the gas capacity corresponding to the right front air spring, m rl is the gas capacity corresponding to the left rear air spring, m rr is the gas capacity corresponding to the right rear air spring.

[0064] In some examples, if an air storage tank is provided in the air suspension system, the total gas volume of the air suspension system also needs to take into account the gas volume of the air storage tank, specifically as follows:

[0065] m ALLOpre = m compopre + m fl + m fr + m rl + m rr ;

[0066] In the formula, m ALLOpre is the total gas volume in the air suspension system, m comp is the gas volume of the air storage tank, m fl is the gas capacity corresponding to the left front air spring, m fr is the gas capacity corresponding to the right front air spring, m rl is the gas capacity corresponding to the left rear air spring, m rr is the gas capacity corresponding to the right rear air spring.

[0067] It can be understood that the gas volume of the air storage tank can also be determined according to the pressure value of the air storage tank. Specifically, after the present application obtains the pressure value of the air storage tank, it matches the pressure value of the air storage tank with the mapping relationship between the pressure value and the gas volume corresponding to the air storage tank, and then obtains the gas volume of the air storage tank.

[0068] It can be understood that the mapping relationship between the pressure value corresponding to the gas storage tank and the gas volume can be in any form of hash, key-value pair, or table. Taking the mapping relationship between the pressure value corresponding to the gas storage tank and the gas volume in the form of a table as an example, the mapping relationship between the pressure value corresponding to the gas storage tank and the gas volume is shown in Table 3 below:

[0069] Table 3: Mapping Relationship Table of Pressure Value and Gas Volume Corresponding to Gas Storage Tank

[0070]

[0071]

[0072] Among them, when the temperature of the gas storage tank (or the ambient temperature) is 25°C, if the pressure value of the gas storage tank is 3 bar, the gas volume of the gas storage tank is 0.2; if the pressure value of the gas storage tank is 3.5 bar, the gas volume of the gas storage tank is 0.21; if the pressure value of the gas storage tank is 4 bar, the gas volume of the gas storage tank is 0.22... If the pressure value of the gas storage tank is 8 bar, the gas volume of the gas storage tank is 0.3, and so on without further elaboration.

[0073] In some examples, after obtaining the total gas volume of the air suspension system, the present application will also match the total gas volume of the air suspension system with the pre-set mapping relationship between the volume and the rotational speed to obtain the target rotational speed. Among them, the above-mentioned pre-set mapping relationship between the volume and the rotational speed can be in any form of key-value pair, hash, or table; exemplarily, taking the pre-set mapping relationship between the volume and the rotational speed in the form of a table as an example, it is shown in Table 4 below:

[0074] Table 4: Mapping Relationship Table of Volume and Rotational Speed

[0075]

[0076] As shown in Table 4 above, when the total gas volume of the air suspension system is 1.1 g, the rotational speed of the compressor is determined to be 5500 rad / s; when the total gas volume of the air suspension system is 1.15 g, the rotational speed of the compressor is determined to be 5300 rad / s... When the total gas volume of the air suspension system is 1.55 g, the rotational speed of the compressor is determined to be 4200 rad / s.

[0077] According to the technical solution provided by the embodiments of the present application, the total gas volume of the air suspension system is determined according to the gas volume of each air spring, achieving accurate acquisition of the total gas volume of the air suspension system; the total gas volume of the air suspension system is matched with the pre-set mapping relationship between the volume and the rotational speed to obtain the target rotational speed, making the target rotational speed take into account the total gas volume of the air suspension system and improving the adaptability of the target rotational speed to the air suspension system.

[0078] In some embodiments, such asFigure 4 As shown, obtaining the airbag pressure value of each air spring in the air suspension system includes:

[0079] S401. Obtaining the initial airbag pressure value of the air spring multiple times within a preset target duration;

[0080] S402. Determining the average airbag pressure value based on the multiple obtained initial airbag pressure values, and using the average airbag pressure value as the airbag pressure value of the air spring.

[0081] In some examples, in order to accurately obtain the airbag pressure value of the air spring, this application will obtain the initial airbag pressure value of the air spring multiple times within a preset target duration, then determine the average airbag pressure value based on the multiple obtained initial airbag pressure values, and use the average airbag pressure value as the airbag pressure value of the air spring.

[0082] It can be understood that during the process of detecting the airbag pressure value of the air spring, the air valve will be opened to connect the pressure sensor and the air valve, and during this process, the airbag pressure value of the air spring will fluctuate, resulting in an error in the measured airbag pressure value. For the above reasons, this application will obtain the initial airbag pressure value of the air spring multiple times within a preset target duration; for example, taking the target duration as 1 second, this application will open the air valve for 1 second, and take an initial airbag pressure value every 10 ms (10 ms is a value set by relevant personnel according to actual needs) within the valve opening time of the air valve. For all the initial airbag pressure values obtained within the valve opening time, take the average value to obtain the average airbag pressure value, and use the average airbag pressure value as the airbag pressure value of the air spring.

[0083] In some examples, this application can also set a correction value according to the actual vehicle situation of the vehicle, correct the initial airbag pressure value through this correction value, and then obtain the average value of all the corrected initial airbag pressure values to obtain the average airbag pressure value.

[0084] It can be understood that when there are multiple air springs in the air suspension system, one correction value can correspond to multiple air springs, or one correction value can correspond to each air spring, which will not be elaborated here.

[0085] It can be understood that the pressure value of the air storage tank can also be obtained through the pressure sensor, and the air storage tank can also correspond to a correction value.

[0086] This example does not limit the detection sequence for pressure detection of the air storage tank and air springs. Relevant personnel can flexibly set it according to actual needs. Taking this example as an example, first, the air storage tank is detected, and then the left front air spring, right front air spring, left rear air spring, and right rear air spring are subjected to pressure detection. First, open the air valve between the pressure sensor and the air storage tank and keep it open for 700 ms (that is, close the air valve between the air storage tank and the pressure sensor after 700 ms. This 700 ms is a value flexibly set by relevant personnel according to actual needs), read the pressure value of the pressure sensor at the moment before closing the valve, and then subtract the correction value corresponding to the air storage tank to obtain the pressure value of the air storage tank.

[0087] After the pressure of the air storage tank is read, open the air valve between the left front air spring and the pressure sensor and keep it open for 700 ms, read the pressure value of the pressure sensor at the moment before closing the valve, and then subtract the correction value corresponding to the left front air spring to obtain the airbag pressure value corresponding to the left front air spring.

[0088] After the airbag pressure value of the left front air spring is detected, open the air valve between the right front air spring and the pressure sensor and keep it open for 700 ms (that is, close the air valve between the right front air spring and the pressure sensor after 700 ms), read the pressure value of the pressure sensor at the moment before closing the valve, and then subtract the correction value corresponding to the right front air spring to obtain the airbag pressure value corresponding to the right front air spring.

[0089] After the airbag pressure value of the right front air spring is detected, open the air valve between the left rear air spring and the pressure sensor and keep it open for 700 ms (that is, close the air valve between the left rear air spring and the pressure sensor after 700 ms), read the pressure value of the pressure sensor at the moment before closing the valve, and then subtract the correction value corresponding to the left rear air spring to obtain the airbag pressure value corresponding to the left rear air spring.

[0090] After the airbag pressure value of the left rear air spring is detected, open the air valve between the right rear air spring and the pressure sensor and keep it open for 700 ms (that is, close the air valve between the right rear air spring and the pressure sensor after 700 ms), read the pressure value of the pressure sensor at the moment before closing the valve, and then subtract the correction value corresponding to the right rear air spring to obtain the airbag pressure value corresponding to the right rear air spring.

[0091] According to the technical solution provided by the embodiment of the present application, the initial airbag pressure value of the air spring is obtained multiple times within a preset target duration; the average airbag pressure value is determined according to the multiple obtained initial airbag pressure values, and the average airbag pressure value is used as the airbag pressure value of the air spring. The above solution reduces the influence of errors on the actual airbag pressure value of the air spring by obtaining the average airbag pressure value as the actual airbag pressure value of the air spring.

[0092] In some embodiments, Figure 5 As shown, the method also includes:

[0093] S501, when the current state of the vehicle meets the preset target state, determining the optimal gas volume corresponding to the air suspension system;

[0094] S502: Control the compressor to inflate the air suspension system so that the total gas volume of the air suspension system reaches an optimal gas volume.

[0095] In order to avoid the problem of adjusting the total gas volume of the air suspension system during the use of the vehicle, which may affect the stability of the vehicle, this application will obtain the current state of the vehicle, and only determine the optimal gas volume corresponding to the air suspension system when the current state of the vehicle meets the pre-set target state.

[0096] It can be understood that the above target state is that the vehicle is in grid wake-up, the vehicle is in P gear, and the user is not in the vehicle; wherein, the air suspension system performs network wake-up at a fixed time (such as 4H, 8H, 12H), and when the air suspension system performs grid wake-up, the optimal gas volume corresponding to the air suspension system will be determined only when the current state of the vehicle meets the above target state. It can be understood that the above target state can be flexibly set by relevant personnel according to actual needs, and this application does not limit this.

[0097] It can be understood that the rising rate and the falling rate of the air spring in the air suspension system are affected by the total gas volume of the air suspension system. Specifically, when the total gas volume in the air suspension system is large (or small), the rising rate or the falling rate will be affected.

[0098] Based on the above reasons, in order to ensure the adjustment efficiency (rising rate, falling rate) of the air spring, the present application needs to adjust the total gas volume of the air suspension system so that the total gas volume of the air suspension system is in the optimal state (that is, the total gas volume of the air suspension system is the optimal gas volume).

[0099] In some examples, the above-mentioned optimal gas volume is obtained by testing according to the actual situation of the vehicle. Therefore, determining the optimal gas volume corresponding to the air suspension system includes: querying a preset optimal gas volume table to obtain the optimal gas volume; illustratively, in the case of a preset ascent / descent distance, the adjustment time corresponding to different gas volumes is shown in Table 5 below:

[0100] Table 5: Mapping relationship between gas volume and adjustment time of air suspension system

[0101] Gas volume (g) of the air suspension system 1.2g 1.25g 1.3g 1.35g 1.40g 1.45g 1.50g 1.55g … Adjustment time (seconds) 35 32 30 28 23 22 25 30 …

[0102] As shown in Table 5 above, when the preset rising / falling distance is set, when the gas volume of the air suspension system is 1.2 g, the adjustment time is 35 s; when the gas volume of the air suspension system is 1.25 g, the adjustment time is 32 s... When the gas volume of the air suspension system is 1.55 g, the adjustment time is 30 s. As in the above example, the optimal gas volume is determined to be 1.45 g.

[0103] According to the technical solution provided by the embodiment of the present application, when the current state of the vehicle meets the preset target state, the optimal gas volume corresponding to the air suspension system is determined; the compressor is controlled to inflate the air suspension system so that the total gas volume of the air suspension system reaches the optimal gas volume, thereby improving the height adjustment efficiency of the air suspension system.

[0104] In some embodiments, as Figure 6 shown, determining the optimal gas volume corresponding to the air suspension system includes:

[0105] S601. Obtain the initial gas volume corresponding to the air suspension system;

[0106] S602. Determine a first influence factor according to the time required for the air suspension system to adjust a predetermined height at the initial gas volume and the time required for the air suspension system of the vehicle to adjust the predetermined height at the current gas volume;

[0107] S603. Perform a weighted process on the initial gas volume according to the first influence factor to determine the optimal gas volume.

[0108] Among them, the initial gas volume is a preset value, and relevant personnel can flexibly set this value according to the actual situation of the air suspension system.

[0109] In some examples, the first influence factor is determined according to the time required for the air suspension system to adjust a predetermined height at the initial gas volume and the time required for the air suspension system of the vehicle to adjust the predetermined height at the current gas volume; specifically, the ratio of the time required for the air suspension system to adjust a predetermined height at the initial gas volume to the time required for the air suspension system of the vehicle to adjust the predetermined height at the current gas volume is used as the first influence factor.

[0110] In some examples, performing a weighted process on the initial gas volume according to the first influence factor to determine the optimal gas volume, specifically, let the initial gas volume be M com , the first influence factor be f tep , then the optimal gas volume M req = M com * f tep .

[0111] According to the technical solution provided by the embodiments of the present application, obtain the initial gas volume corresponding to the air suspension system; determine the first influence factor according to the time required to adjust the predetermined height of the air suspension system at the initial gas volume and the time required to adjust the predetermined height of the air suspension system at the current gas volume; perform weighted processing on the initial gas volume according to the first influence factor to determine the optimal gas volume. Among them, this method takes into account the change of the air suspension system in the current gas volume compared with the initial gas volume, determines the first influence factor according to this change, and processes the initial gas volume according to the first influence factor to obtain the optimal gas volume, thereby ensuring the adjustment efficiency of the air suspension system.

[0112] In some embodiments, as Figure 7 shown, performing according to the first influence factor on the initial gas volume to determine the optimal gas volume includes:

[0113] S701. Determine the second influence factor according to the current driving mode of the vehicle, and determine the third influence factor according to the temperature of the air suspension system;

[0114] S702. Perform weighted processing on the initial gas volume according to the first influence factor, the second influence factor, and the third influence factor to obtain the optimal gas volume.

[0115] Among them, the second influence factor is a value determined according to the driving mode of the vehicle. When the vehicle is in different driving modes, the initial gas volume is different; for example, when the comfort mode is selected, to provide a smooth and comfortable experience, the suspension needs to increase the gas volume inside the air suspension system, raise the vehicle body, soften the shock absorber, and absorb more road surface vibrations; in the sport mode, there is no need to change the gas volume in the air suspension system. In the off-road mode, the gas volume in the air suspension system is significantly increased to improve the suspension body height and passability. Therefore, in the present application, there is a pre-set correspondence between the driving mode and the parameter value. According to the current driving mode of the vehicle and matching it with the pre-set correspondence between the driving mode and the parameter value, the second influence factor can be obtained.

[0116] Exemplarily, as shown in Table 6 below:

[0117] Table 6: Correspondence table of driving mode and parameter value

[0118] Driving mode Comfort mode Sport mode Off-road mode Parameter value 0.95 1 1.05

[0119] As shown in Table 6 above, when the current driving mode of the vehicle is the comfort mode, the second influence factor is determined to be 0.95; when the current driving mode of the vehicle is the sport mode, the second influence factor is determined to be 1; when the current driving mode of the vehicle is the off-road mode, the second influence factor is determined to be 1.05.

[0120] Among them, the third influencing factor is a value determined according to the temperature inside the vehicle air suspension system. It can be understood that at different temperatures, the rising and falling efficiency of the air suspension system is different. To ensure the stability of the rising and falling efficiency of the air suspension system, the present application also needs to consider the influence of temperature on the rising and falling efficiency.

[0121] Specifically, in the present application, a corresponding relationship between temperature and the third influencing factor is preset. By obtaining the current temperature inside the air suspension system and then matching the current temperature with the corresponding relationship between the temperature and the third influencing factor, the corresponding third influencing factor can be obtained.

[0122] Exemplarily, the corresponding relationship between temperature and the third influencing factor is shown in Table 7 below:

[0123] Table 7: Corresponding relationship table between temperature and the third influencing factor

[0124] Ambient temperature (°C) -20～-10 -10～0 0～10 10～20 20～30 30～40 40～50 … Third influencing factor 0.91 0.93 0.95 0.98 1 0.98 0.95 …

[0125] Taking the current temperature inside the air suspension system being between -20°C and -10°C as an example, the corresponding third influencing factor is determined to be 0.91.

[0126] In some examples, the initial gas volume is weighted according to the first influencing factor, the second influencing factor, and the third influencing factor to obtain the optimal gas volume. That is, let the first influencing factor be f tep , the second influencing factor be f p , the third influencing factor be f m , the initial gas volume be M com , then the optimal gas volume M req = M com * f tep * f p * f m .

[0127] According to the technical solution provided by the embodiment of the present application, the second influencing factor is determined according to the current driving mode of the vehicle, and the third influencing factor is determined according to the temperature corresponding to the air suspension system; the initial gas volume is weighted according to the first influencing factor, the second influencing factor, and the third influencing factor to obtain the optimal gas volume. Among them, the present application takes into account the change of the current gas capacity of the air suspension system compared with the initial gas volume, takes into account the influence of the driving mode on the optimal gas volume, and takes into account the influence of temperature on the optimal gas volume, thereby more accurately determining the optimal gas volume, and further ensuring the adjustment efficiency of the air suspension system.

[0128] To better understand the present application, this embodiment provides a more specific example for illustration. Exemplarily, assume that the initial gas volume of the air suspension system is 1.45 g. At this initial gas volume, the time required to adjust to a predetermined height is 22 seconds. The current gas volume of the air suspension system is 1.2 g, and the time required to adjust to the predetermined height is 35 seconds. Then the first influencing factor is 22 / 35 = 0.63.

[0129] Exemplarily, taking the optimal gas volume of 1.45 g as an example, when the gas volume of the air suspension system is 1.45 g, the suspension rising rate (falling rate) reaches the best. However, in a closed system, there will be gas leakage. When the gas volume is less than 1.45 g or greater than 1.45 g, the rising rate (falling rate) will become lower. Therefore, when the gas volume of the air suspension system is not equal to 1.45 g, exhaust or inflate the gas volume of the air suspension system. However, when the user is using the vehicle, exhaust and inflation will affect the user experience. At this time, no exhaust or inflation is performed, and 1.45 g is taken as the optimal gas volume. When the vehicle is in the locked state, the air suspension system is network-woken up at regular times of 4H, 8H, 12H... When the current state of the vehicle meets the target state, the gas volume of the air suspension system is adjusted so that the total gas volume of the air suspension system is determined to be the optimal gas volume.

[0130] In some examples, the range of the above optimal gas volume is ±0.01 g. Taking the optimal gas volume of 1.45 g as an example, when the total gas volume of the air suspension system < 1.44 g, inflate the air suspension system; when the total gas volume of the air suspension system > 1.46 g, exhaust the air suspension system; keep the total gas volume of the air suspension system between 1.44 g and 1.46 g, thereby ensuring the rising and falling efficiency of the air spring in the air suspension system. And ensuring that the gas volume of the air suspension system is within a suitable range is also beneficial to protecting components and increasing the service life of the air suspension system.

[0131] In some examples, when the total gas volume of the air suspension system is less than the optimal gas volume and the air suspension system needs to be inflated, this application will determine the inflation time according to the total gas volume and the pre-set optimal gas volume. Specifically, this application will obtain the gas volume difference between the total gas volume and the optimal gas volume, match the gas volume difference with the mapping relationship between the pre-set gas volume difference and the inflation time, and then obtain the corresponding inflation time. Then, according to the inflation time, control the compressor to inflate the air suspension system so that the total gas volume of the air suspension system reaches the optimal gas volume.

[0132] In some examples, when the total gas volume of the air suspension system is greater than the optimal gas volume and the air suspension system needs to be deflated, the present application will determine the deflation time according to the total gas volume and the preset optimal gas volume. Specifically, the present application will obtain the gas volume difference between the total gas volume and the optimal gas volume, match the gas volume difference with the mapping relationship between the preset gas volume difference and the inflation time, and then obtain the corresponding deflation time. Then, the compressor is controlled to deflate the air suspension system according to the deflation time, so that the total gas volume of the air suspension system reaches the optimal gas volume.

[0133] It can be understood that the above-mentioned mapping relationship between the preset gas volume difference and the inflation time can be obtained by relevant personnel through testing the air suspension system of the vehicle. The above-mentioned mapping relationship between the preset gas volume difference and the inflation time can also be determined by a deep learning model according to various parameters of the vehicle. Moreover, the above-mentioned mapping relationship between the preset gas volume difference and the inflation time can be in any form of hash, key-value pair, or table. The present application does not limit this.

[0134] In some examples, in order to avoid the problem that inflating / deflating the air spring in the air suspension system causes the height of the vehicle to change and affects the user's driving, in some examples, only the air storage tank of the air suspension system can be charged or deflated; in some examples, in order to accurately adjust the total gas volume of the air suspension system, it can also be to inflate or deflate the air spring and the air storage tank in the air suspension system together.

[0135] In some examples, controlling the compressor to inflate the air suspension system according to the optimal gas volume so that the total gas volume of the air suspension system reaches the optimal gas volume includes: obtaining the current load of the vehicle, determining the inflation speed of the compressor according to the current load; controlling the compressor to inflate the air suspension system according to the inflation speed so that the total gas volume of the air suspension system reaches the optimal gas volume.

[0136] It can be understood that when the vehicle load changes (such as an increase or decrease in load), the inflation and deflation efficiencies of the air spring in the air suspension system will be affected. For example, when the vehicle load increases, if the compressor still operates at the original speed, the inflation efficiency of the air suspension system will decrease, resulting in a slower response speed of the air suspension system and affecting the user experience. For the above reasons, in order to adjust the total gas volume of the air suspension system to the optimal gas volume within the inflation time, the present application will further obtain the current load of the vehicle and match the current load with the mapping relationship between the load and the speed to obtain the inflation speed of the compressor. The inflation speed is the speed at which the compressor inflates the air suspension during the inflation time.

[0137] It can be understood that the above mapping relationship between the load and the rotational speed can be obtained by relevant personnel through multiple tests on the air suspension system of the vehicle. The above mapping relationship between the load and the rotational speed can also be inferred by a deep learning model based on the parameters of the air suspension system of the vehicle. Moreover, the present application does not limit the form of the above mapping relationship between the load and the rotational speed, and this mapping relationship between the load and the rotational speed can be any one of key-value pairs, hashes, and tables.

[0138] After obtaining the inflation rotational speed, control the compressor to inflate the air suspension system according to the inflation rotational speed, so that the total gas volume of the air suspension system reaches the optimal gas volume.

[0139] According to the technical solution provided by the embodiment of the present application, obtain the current load of the vehicle, determine the inflation rotational speed of the compressor according to the current load; control the compressor to inflate the air suspension system according to the inflation rotational speed, so that the total gas volume of the air suspension system reaches the optimal gas volume, thereby enabling the compressor to adjust the total gas volume of the air suspension system to the optimal gas volume within the inflation time.

[0140] In some examples, after controlling the compressor to adjust the height of the air suspension system according to the target rotational speed, the method further includes: obtaining the motion posture of the vehicle, and determining the safety factor of the vehicle according to the motion posture; if the safety factor is lower than a pre-set safety threshold, then adjust the air suspension system according to a pre-set safety mode.

[0141] In some examples, after adjusting the air suspension system, it may cause the stability of the vehicle to deteriorate, and then lead to safety hazards such as the vehicle tilting and shaking. In order to avoid safety accidents caused by the above problems, after adjusting the height of the air suspension system, the present application will also obtain the running posture of the vehicle, and determine the safety factor of the vehicle according to the motion posture. Among them, different motion postures correspond to different safety factors, and the safety factor corresponding to the motion posture can be determined by relevant personnel according to the actual situation of the vehicle.

[0142] Among them, if the safety factor is lower than a pre-set safety threshold, it indicates that the vehicle has safety hazards such as tilting and shaking. In order to avoid safety accidents caused by the above problems, the present application will adjust the air suspension system according to a pre-set safety mode to avoid accidents such as the vehicle rolling over and skidding; among them, the above safety mode is the mode of the air suspension system corresponding to improving the stability of the vehicle.

[0143] If the safety factor is not lower than a pre-set safety threshold, it indicates that the vehicle does not have safety hazards such as tilting and shaking, then exit the above process, and wait to receive the height adjustment instruction of the air suspension system again later, and then adjust the height of the air suspension system of the vehicle.

[0144] According to the technical solution provided by the embodiment of the present application, the motion posture of the vehicle is obtained, and the safety factor of the vehicle is determined according to the motion posture; if the safety factor is lower than the preset safety threshold, the air suspension system is adjusted according to the preset safety mode, thereby avoiding safety accidents such as rollover and skidding of the vehicle after adjusting the air suspension system.

[0145] All the above optional technical solutions can be combined arbitrarily to form the optional embodiments of the present application, which will not be elaborated one by one here.

[0146] The following is an embodiment of the device of the present application, which can be used to execute the method embodiment of the present application. For the details not disclosed in the device embodiment of the present application, please refer to the method embodiment of the present application.

[0147] This embodiment also provides an adjustment device for an air suspension system, as Figure 8 shown, the device includes:

[0148] An acquisition module 801, configured to acquire the airbag pressure value of each air spring in the air suspension system, and determine the gas capacity of each air spring according to the airbag pressure value of each air spring;

[0149] A determination module 802, configured to determine the target speed of the compressor in the air suspension system according to the gas capacity of each air spring;

[0150] An adjustment module 803, configured to, in response to a height adjustment instruction for the air suspension system, control the compressor to adjust the height of the air suspension system according to the target speed.

[0151] In some examples, the acquisition module 801 is further configured to acquire the mapping relationship between the pressure value and the gas capacity; match the airbag pressure value of each air spring with the mapping relationship between the pressure value and the gas capacity to obtain the gas capacity of each air spring.

[0152] In some examples, the determination module 802 is further configured to determine the total gas volume of the air suspension system according to the gas capacity of each air spring; match the total gas volume of the air suspension system with the preset mapping relationship between the capacity and the speed to obtain the target speed.

[0153] In some examples, the acquisition module 801 is further configured to acquire the initial airbag pressure value of the air spring multiple times within a preset target duration; determine the average airbag pressure value according to the multiple acquired initial airbag pressure values, and use the average airbag pressure value as the airbag pressure value of the air spring.

[0154] In some examples, the adjustment module 803 is further configured to determine the optimal gas quantity corresponding to the air suspension system when the current state of the vehicle meets a preset target state; control the compressor to inflate the air suspension system so that the total gas quantity of the air suspension system reaches the optimal gas quantity.

[0155] In some examples, the adjustment module 803 is further configured to obtain the initial gas quantity corresponding to the air suspension system; determine a first influence factor according to the time required to adjust a predetermined height of the air suspension system at the initial gas quantity and the time required to adjust the predetermined height of the air suspension system at the current gas capacity; perform a weighting process on the initial gas quantity according to the first influence factor to determine the optimal gas quantity.

[0156] In some examples, the adjustment module 803 is further configured to determine a second influence factor according to the current driving mode of the vehicle, and determine a third influence factor according to the air temperature corresponding to the air suspension system; perform a weighting process on the initial gas quantity according to the first influence factor, the second influence factor, and the third influence factor to obtain the optimal gas quantity.

[0157] According to the technical solution provided by the embodiment of the present application, the adjustment device of the air suspension system provided in this embodiment obtains the airbag pressure value of each air spring in the air suspension system, and determines the gas capacity of each air spring according to the airbag pressure value of each air spring; determines the target speed of the compressor in the air suspension system according to the gas capacity of each air spring; in response to a height adjustment instruction for the air suspension system, controls the compressor to adjust the height of the air suspension system according to the target speed. The present application accurately obtains the gas capacity of the air spring by obtaining the airbag pressure value of the air spring, and then determines the target speed of the compressor according to the gas capacity of the air spring, so that the target speed of the compressor matches the gas capacity of the air spring. Subsequently, the compressor is controlled to adjust the height of the air suspension system according to the target speed, realizing the requirement of real-time and dynamic matching of the compressor speed and the gas capacity of the air spring, making the output of the compressor more efficient and accurate, and avoiding the problem that the air suspension system cannot adjust the speed of the compressor according to its own current state due to the fixed speed of the compressor, resulting in a poor user experience of the air suspension system.

[0158] Figure 9 is a schematic diagram of the electronic device 9 provided by the embodiment of the present application. As Figure 9 shown, the electronic device 9 of this embodiment includes: a processor 901, a memory 902, and a computer program 903 stored in the memory 902 and executable on the processor 901. When the processor 901 executes the computer program 903, the steps in each method embodiment described above are implemented. Alternatively, when the processor 901 executes the computer program 903, the functions of each module / unit in each device embodiment described above are implemented.

[0159] The electronic device 9 may be a desktop computer, a notebook, a palm computer, a cloud server, or other electronic devices. The electronic device 9 may include, but is not limited to, a processor 901 and a memory 902. Those skilled in the art can understand that Figure 9 merely examples of the electronic device 9, which do not constitute a limitation on the electronic device 9, may include more or fewer components than shown in the figure, or different components.

[0160] The processor 901 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0161] The memory 902 may be an internal storage unit of the electronic device 9. For example, the hard disk or memory of the electronic device 9. The memory 902 may also be an external storage device of the electronic device 9. For example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 9. The memory 902 may also include both an internal storage unit and an external storage device of the electronic device 9. The memory 902 is used to store computer programs and other programs and data required by the electronic device.

[0162] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0163] When an integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the above-described embodiment methods of this application, it can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of each method embodiment described above can be implemented. The computer program can include computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier distance, telecommunication distance, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to regional requirements and patent practice requirements. For example, in some regions, according to regional requirements and patent practice, the computer-readable medium does not include electrical carrier distance and telecommunication distance.

[0164] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in each of the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of this application, and should all be included in the protection scope of this application.

Claims

1. A method for adjusting an air suspension system, characterized in that: The method comprises: Acquire the airbag pressure value of each air spring in the air suspension system, and determine the gas capacity of each air spring according to the airbag pressure value of each air spring; determining a target rotation speed of a compressor in the air suspension system according to the gas capacity of each of the air springs; In response to a height adjustment instruction for the air suspension system, the compressor is controlled to adjust the height of the air suspension system according to the target speed.

2. The method according to claim 1, characterized in that Determining the gas capacity of each of the air springs according to the airbag pressure value of each of the air springs comprises: Get the mapping relationship between pressure value and gas capacity; The airbag pressure value of each of the air springs is matched with the mapping relationship between the pressure value and the gas capacity to obtain the gas capacity of each of the air springs.

3. The method according to claim 1, characterized in that Determining a target rotation speed of a compressor in the air suspension system according to the gas capacity of each of the air springs comprises: determining a total gas volume of the air suspension system according to the gas volume of each of the air springs; The total gas volume of the air suspension system is matched with a preset mapping relationship between capacity and rotation speed to obtain the target rotation speed.

4. The method according to claim 1, characterized in that: Get the airbag pressure value of each air spring in the air suspension system, including: Acquiring the initial airbag pressure value of the air spring multiple times within a preset target time period; An average airbag pressure value is determined according to the initial airbag pressure values ​​obtained multiple times, and the average airbag pressure value is used as the airbag pressure value of the air spring.

5. The method according to claim 1, characterized in that The method further comprises: When the current state of the vehicle meets the preset target state, determining the optimal gas volume corresponding to the air suspension system; The compressor is controlled to inflate the air suspension system so that a total gas volume of the air suspension system reaches the optimal gas volume.

6. The method according to claim 5, characterized in that Determining an optimal gas volume corresponding to the air suspension system includes: Obtaining an initial gas volume corresponding to the air suspension system; determining a first influencing factor based on a time required for the air suspension system to adjust to a predetermined height at the initial gas volume and a time required for the air suspension system to adjust to a predetermined height at a current gas volume; The initial gas quantity is weighted according to the first influencing factor to determine the optimal gas quantity.

7. The method according to claim 6, characterized in that The initial gas volume is determined according to the first influencing factor to determine the optimal gas volume, including: Determining a second influencing factor according to a current driving mode of the vehicle, and determining a third influencing factor according to an air temperature corresponding to the air suspension system; The initial gas quantity is weighted according to the first influencing factor, the second influencing factor, and the third influencing factor to obtain the optimal gas quantity.

8. An adjustment device for an air suspension system, characterized in that: The device comprises: An acquisition module, used for acquiring an airbag pressure value of each air spring in the air suspension system, and determining a gas capacity of each air spring according to the airbag pressure value of each air spring; a determination module, configured to determine a target rotation speed of a compressor in the air suspension system according to a gas capacity of each of the air springs; The adjustment module is used to respond to a height adjustment instruction for the air suspension system and control the compressor to adjust the height of the air suspension system according to the target speed.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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