Vehicle air suspension air storage tank pressure control method, device, equipment and medium

Abstract

The invention discloses a pressure control method, device and equipment for an air storage tank of a vehicle air suspension and a medium, and belongs to the technical field of automobiles. The method comprises the steps that after an air suspension adjusting instruction is received, the numerical value of a first variable is obtained, and the numerical value of the first variable is an air storage tank pressure value recorded last time; the air suspension is adjusted according to the air suspension adjusting mode corresponding to the target numerical value interval to which the numerical value of the first variable belongs, so that the air suspension is adjusted to the target height; when the target numerical value interval is the first interval or the second interval, the numerical value of a first pressure sensor arranged in a pipeline is obtained, the numerical value of the first variable is updated to be the numerical value of the first pressure sensor, and the pipeline is formed by the air suspension, the air pump and the air storage tank; when the target numerical value interval is a third interval, maintaining the numerical value of the first variable unchanged; wherein the lower limit value of the first interval is higher than the upper limit value of the second interval, the lower limit value of the second interval is higher than the upper limit value of the third interval, and the adjusting efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method, device, equipment and computer-readable storage medium for controlling the pressure of a vehicle air suspension air tank. Background Art

[0002] With the development of automobile technology, more and more cars are equipped with air suspension. Generally speaking, the air suspension configured is generally an open air suspension. How to determine which adjustment method to use to adjust the air suspension will directly affect the adjustment efficiency. In the related art, due to the characteristics of the air suspension system structure, when adjusting the air suspension, the pressure value of the air tank can only be read by the pressure sensor arranged in the pipeline after the valve of the air tank is opened, and then the specific adjustment method to be performed is judged by the pressure value of the air tank, that is, whether the air pump needs to be turned on, or the air tank is closed and only the air pump is turned on to adjust the air suspension. However, once the valve of the air tank is closed, the value of the pressure sensor arranged in the pipeline will be reset, and the pressure value of the air tank cannot be monitored. Every time the air suspension needs to be adjusted, the valve of the air tank can only be opened first, and then the value of the pressure sensor in the pipeline is read, and the specific adjustment method to be performed is judged by the value of the pressure sensor, resulting in low adjustment efficiency. Summary of the invention

[0003] The present application provides a vehicle air suspension air tank pressure control method, device, equipment and computer-readable storage medium, which can solve the technical problem in the prior art that each time the air suspension needs to be adjusted, it is necessary to first open the valve of the air tank, then read the value of the pressure sensor in the pipeline, and judge the specific adjustment method to be performed based on the value of the pressure sensor, resulting in low adjustment efficiency.

[0004] In a first aspect, an embodiment of the present application provides a method for controlling the pressure of an air suspension tank of a vehicle, the method comprising:

[0005] After receiving the air suspension adjustment instruction, obtaining the value of the first variable, the value of the first variable being the last recorded air tank pressure value;

[0006] determining a target value interval to which the value of the first variable belongs, and adjusting the air suspension according to an air suspension adjustment mode corresponding to the target value interval to adjust the air suspension to a target height;

[0007] When the target value interval is the first interval or the second interval, obtaining a value of a first pressure sensor arranged in a pipeline, updating the value of the first variable to the value of the first pressure sensor, and obtaining an updated value of the first variable, wherein the pipeline is a pipeline formed by an air suspension, an air pump, and an air storage tank;

[0008] When the target value interval is the third interval, maintaining the value of the first variable unchanged;

[0009] The lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval.

[0010] In combination with the first aspect, in one implementation, adjusting the air suspension according to the air suspension adjustment mode corresponding to the target value interval includes:

[0011] When the target value interval is the first interval, controlling the air storage tank to adjust the air suspension;

[0012] When the target value interval is the second interval, controlling the air storage tank and the air pump to adjust the air suspension;

[0013] When the target numerical value interval is the third interval, the air pump is controlled to adjust the air suspension.

[0014] In combination with the first aspect, in one embodiment, after the step of adjusting the air suspension to the target height, the method further includes:

[0015] If the target value interval is the second interval or the third interval, the air pump is controlled to replenish air to the air storage tank;

[0016] In the process of controlling the air pump to replenish the air tank, the vehicle speed and the value of the second pressure sensor arranged in the pipeline are obtained;

[0017] Detecting whether a stop gas replenishment condition is met by combining the vehicle speed and the value of the second pressure sensor;

[0018] If the air replenishment stop condition is met, the air pump is controlled to stop replenishing air to the air storage tank, and the value of the first variable is updated to the value of the second pressure sensor to obtain the updated value of the first variable.

[0019] In combination with the first aspect, in one implementation, the gas supplementation stopping condition includes:

[0020] The vehicle speed is greater than the vehicle speed threshold and the value of the second pressure sensor is greater than the first pressure threshold;

[0021] And / or, the vehicle speed is less than a vehicle speed threshold and the value of the second pressure sensor is greater than a second pressure threshold; wherein the first pressure threshold is greater than the second pressure threshold.

[0022] In combination with the first aspect, in one implementation, after the step of obtaining the updated value of the first variable, the method further includes:

[0023] If the target value interval is the first interval, determining whether the updated value of the first variable is less than a third pressure threshold;

[0024] If the updated value of the first variable is less than the third pressure threshold, obtaining the vehicle speed, and determining whether the vehicle speed is greater than the speed threshold;

[0025] When the vehicle speed is greater than the vehicle speed threshold, controlling the air pump to replenish air to the air storage tank;

[0026] In the process of controlling the air pump to replenish the air storage tank with air, a value of a third pressure sensor arranged in the pipeline is obtained;

[0027] Determining whether a value of the third pressure sensor is greater than a first pressure threshold;

[0028] If the value of the third pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing air to the air storage tank;

[0029] The value of the first variable is updated to the value of the third pressure sensor to obtain an updated value of the first variable.

[0030] In combination with the first aspect, in one implementation, the method further includes:

[0031] If no air suspension adjustment instruction is received, obtaining a value of a first variable, and determining whether the value of the first variable is less than a third threshold;

[0032] If the value of the first variable is less than the third threshold, obtaining the vehicle speed, and determining whether the vehicle speed is greater than the speed threshold;

[0033] If the vehicle speed is greater than the speed threshold, control the air pump to replenish air in the air storage tank;

[0034] In the process of controlling the air pump to replenish air to the air storage tank, obtaining a value of a fourth pressure sensor arranged in the pipeline;

[0035] Determining whether a value of the fourth pressure sensor is greater than a first pressure threshold;

[0036] If the value of the fourth pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing air to the air storage tank;

[0037] The value of the first variable is updated to the value of the fourth pressure sensor to obtain an updated value of the first variable.

[0038] In combination with the first aspect, in one implementation, the method further includes:

[0039] Detect whether the air suspension adjustment process is interrupted;

[0040] If the detection result is interrupted, obtaining a value of a fifth pressure sensor arranged in the pipeline;

[0041] The value of the first variable is updated to the value of the fifth pressure sensor to obtain an updated value of the first variable.

[0042] In combination with the first aspect, in one implementation, the method further includes:

[0043] Check whether the gas tank refilling process is interrupted;

[0044] If the detection result is interrupted, obtaining a value of a sixth pressure sensor arranged in the pipeline;

[0045] The value of the first variable is updated to the value of the sixth pressure sensor to obtain an updated value of the first variable.

[0046] In a second aspect, an embodiment of the present application provides a vehicle air suspension air tank pressure control device, the vehicle air suspension air tank pressure control device comprising:

[0047] An acquisition module, configured to acquire a value of a first variable after receiving an air suspension adjustment instruction, wherein the value of the first variable is a pressure value of the air storage tank recorded last time;

[0048] an adjusting module, configured to determine a target value interval to which the value of the first variable belongs, and adjust the air suspension according to an air suspension adjustment method corresponding to the target value interval, so as to adjust the air suspension to a target height;

[0049] an updating module, configured to obtain a value of a first pressure sensor disposed in a pipeline when the target value interval is the first interval or the second interval, update the value of the first variable to the value of the first pressure sensor, and obtain an updated value of the first variable, wherein the pipeline is a pipeline formed by an air suspension, an air pump, and an air storage tank;

[0050] The updating module is further configured to maintain the value of the first variable unchanged when the target value interval is a third interval;

[0051] The lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval.

[0052] In a third aspect, an embodiment of the present application provides a vehicle air suspension tank pressure control device, the vehicle air suspension tank pressure control device comprising a processor, a memory, and a vehicle air suspension tank pressure control program stored in the memory and executable by the processor, wherein when the vehicle air suspension tank pressure control program is executed by the processor, the steps of the vehicle air suspension tank pressure control method as described in any one of the first aspects are implemented.

[0053] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a vehicle air suspension tank pressure control program is stored, wherein when the vehicle air suspension tank pressure control program is executed by a processor, the steps of the vehicle air suspension tank pressure control method as described in any one of the first aspects are implemented.

[0054] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0055] After receiving the air suspension adjustment instruction, the value of the first variable is obtained, and the value of the first variable is the pressure value of the air tank recorded last time; then the target value interval to which the value of the first variable belongs is determined, and the air suspension is adjusted according to the air suspension adjustment method corresponding to the target value interval to adjust the air suspension to the target height; further, when the target value interval is the first interval or the second interval, the value of the first pressure sensor arranged in the pipeline is obtained, and the value of the first variable is updated to the value of the first pressure sensor to obtain the updated value of the first variable, and the pipeline is a pipeline formed by the air suspension, the air pump and the air tank; when the target value interval is the third interval, the value of the first variable is maintained unchanged; wherein the lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval, thereby realizing the determination of the air suspension adjustment method according to the value of the variable, and at the same time, after the adjustment is completed, the value of the variable is updated in time, which can improve the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 One of the flow charts of a method for controlling the pressure of a vehicle air suspension tank provided in one embodiment of the present application;

[0057] Figure 2 A schematic diagram of an air suspension system provided in one embodiment of the present application;

[0058] Figure 3 A second flow chart of a method for controlling the pressure of a vehicle air suspension tank provided by an embodiment of the present application;

[0059] Figure 4This is a functional module diagram of an embodiment of a pressure control device for an air storage tank of an air suspension of a vehicle of the present application;

[0060] Figure 5 This is a schematic diagram of the hardware structure of the vehicle air suspension tank pressure control device involved in the embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0062] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0063] In a first aspect, an embodiment of the present application provides a method for controlling the pressure of a vehicle air suspension tank.

[0064] In one embodiment, referring to Figure 1 , Figure 1 This is one of the flow charts of a method for controlling the pressure of a vehicle air suspension tank provided by an embodiment of the present application. Figure 1 As shown, the vehicle air suspension tank pressure control method includes:

[0065] Step 110: after receiving the air suspension adjustment instruction, obtaining the value of the first variable, the value of the first variable being the last recorded air tank pressure value;

[0066] In specific implementation, after receiving the air suspension adjustment instruction, the vehicle controller obtains the value of the first variable, which is the most recently updated air tank pressure value, which can be the air tank pressure value recorded after adjusting the air suspension, or the air tank pressure value recorded after refilling the air tank.

[0067] Step 120: determining a target value interval to which the value of the first variable belongs, and adjusting the air suspension according to an air suspension adjustment method corresponding to the target value interval to adjust the air suspension to a target height;

[0068] Wherein, the target numerical value interval is one of the first interval, the second interval and the third interval, the lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval. Exemplarily, the first interval is (13.5, +∞), the second interval is [10, 13.5], and the third interval is (-∞, 10). The corresponding air suspension adjustment method of the first interval is to adjust the air suspension using an air tank; the corresponding air suspension adjustment method of the second interval is to adjust the air suspension using an air tank and an air pump; the corresponding air suspension adjustment method of the third interval is to adjust the air suspension using an air pump.

[0069] Furthermore, in one embodiment, the air suspension is adjusted according to the air suspension adjustment mode corresponding to the target value range, including:

[0070] When the target value interval is the first interval, controlling the air storage tank to adjust the air suspension;

[0071] When the target value interval is the second interval, controlling the air storage tank and the air pump to adjust the air suspension;

[0072] When the target numerical value interval is the third interval, the air pump is controlled to adjust the air suspension.

[0073] Exemplarily, if the value of the first variable obtained is 16 bar, it is determined that the target value interval to which the value of the first variable belongs is the first interval, indicating that there is enough high-pressure gas in the gas tank. At this time, only the gas tank is controlled to adjust the air suspension until the air suspension is adjusted to the target height, with high adjustment efficiency, low noise, and good driving experience; if the value of the first variable obtained is 12 bar, it is determined that the target value interval to which the value of the first variable belongs is the second interval, indicating that the capacity of the high-pressure gas in the gas tank is medium. At this time, the gas tank and the air pump are controlled to adjust the air suspension at the same time to ensure that the air suspension is adjusted to the target height; if the value of the first variable obtained is 8 bar, it is determined that the target value interval to which the value of the first variable belongs is the third interval, indicating that the capacity of the high-pressure gas in the gas tank is low. At this time, only the air pump is controlled to adjust the air suspension until the air suspension is adjusted to the target height.

[0074] In this embodiment, the target numerical range to which the numerical value of the first variable belongs is first determined, and then the air suspension is adjusted according to the air suspension adjustment method corresponding to the target numerical range. This overcomes the problem in the prior art that when adjusting the air suspension, the air tank valve needs to be opened and the specific air suspension adjustment method needs to be determined, thereby improving the adjustment efficiency.

[0075] Step 130: when the target value interval is the first interval or the second interval, obtaining a value of a first pressure sensor arranged in a pipeline, updating the value of the first variable to the value of the first pressure sensor, and obtaining an updated value of the first variable, wherein the pipeline is a pipeline formed by an air suspension, an air pump, and an air storage tank;

[0076] Figure 2 The schematic diagram of the air suspension system provided in one embodiment of the present application is as follows: Figure 2 As shown in the figure, the pressure sensor in the figure is the first pressure sensor. Only after the gas tank valve is opened, the value of the pressure sensor in the pipeline can be regarded as the pressure value of the gas tank. It should be noted that the second pressure sensor, the third pressure sensor, ... the sixth pressure sensor in the following text all refer to Figure 2 In order to avoid confusion, the pressure sensors in the description of different technical solutions are distinguished.

[0077] In specific implementation, after the air suspension is adjusted to the target height, when the target numerical interval is the first interval or the second interval, the air tank participates in the air suspension adjustment process, and the air tank pressure value changes, so it is necessary to update the value of the first variable. Specifically, because the air tank participates in the air suspension adjustment process, the air tank valve is in an open state, and the value of the first pressure sensor can be directly obtained, and the value of the first variable is updated to the value of the first pressure sensor to obtain the updated value of the first variable. That is, after the air suspension adjustment is completed, the air tank pressure value is updated and preserved in time.

[0078] Step 140: When the target value interval is the third interval, maintaining the value of the first variable unchanged;

[0079] It can be understood that when the target value interval is the third interval, only the air pump is controlled to adjust the air suspension. Figure 2 It can be seen that, in this case, the air tank does not participate in the air suspension adjustment, and the pressure sensor does not display a value, so the value of the first variable is maintained unchanged.

[0080] In this embodiment, after receiving the air suspension adjustment instruction, the value of the first variable is obtained, and the value of the first variable is the pressure value of the air tank recorded last time; then the target value interval to which the value of the first variable belongs is determined, and the air suspension is adjusted according to the air suspension adjustment method corresponding to the target value interval to adjust the air suspension to the target height; further, when the target value interval is the first interval or the second interval, the value of the first pressure sensor arranged in the pipeline is obtained, and the value of the first variable is updated to the value of the first pressure sensor to obtain the updated value of the first variable, and the pipeline is a pipeline formed by the air suspension, the air pump and the air tank; when the target value interval is the third interval, the value of the first variable is maintained unchanged; wherein the lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval, thereby realizing the determination of the air suspension adjustment method according to the value of the variable, and at the same time, after the adjustment is completed, the value of the variable is updated in time, which can improve the adjustment efficiency.

[0081] Furthermore, in one embodiment, after the step of adjusting the air suspension to the target height, the method further includes:

[0082] Step 220: If the target value interval is the second interval or the third interval, control the air pump to replenish air to the air storage tank;

[0083] It can be understood that if the target numerical interval is the second interval or the third interval, it indicates that the gas in the gas tank is relatively insufficient, and air needs to be sucked from the atmosphere by the air pump, compressed and then enter the gas tank to replenish the gas tank. Therefore, if the target numerical interval is the second interval or the third interval, the air pump is directly controlled to replenish the gas tank.

[0084] Step 230: While controlling the air pump to replenish the air tank with air, obtain the vehicle speed and the value of the second pressure sensor arranged in the pipeline;

[0085] In specific implementation, when the air pump is controlled to replenish the air tank, the wheel speed sensor is used to obtain the vehicle speed, and the value of the second pressure sensor is obtained at the same time, so as to determine whether to stop replenishing the air according to the vehicle speed and the value of the second pressure sensor. It can be understood that when the air pump is controlled to replenish the air tank, the air tank valve is in an open state, so the value of the second pressure sensor can be read.

[0086] Step 240: Detect whether a stop air supply condition is met by combining the vehicle speed and the value of the second pressure sensor;

[0087] It is understandable that the air pump will generate a lot of noise when replenishing the air tank. Only when the vehicle speed is high, the user can hardly feel the noise generated by the air pump replenishing the air. Therefore, this embodiment combines the vehicle speed and the value of the second pressure sensor to detect whether the stop replenishing condition is met to improve the driving experience.

[0088] Furthermore, in one embodiment, the gas replenishment stopping condition includes:

[0089] The vehicle speed is greater than the vehicle speed threshold and the value of the second pressure sensor is greater than the first pressure threshold;

[0090] And / or, the vehicle speed is less than a vehicle speed threshold and the value of the second pressure sensor is greater than a second pressure threshold; wherein the first pressure threshold is greater than the second pressure threshold.

[0091] For example, the vehicle speed threshold is 30km / h, the first pressure threshold is 18bar, and the second pressure threshold is 15bar. Generally speaking, when filling air, it takes 120s for the air tank pressure to reach 15bar, and 200s to reach 18bar. When the vehicle speed exceeds the speed threshold, the noise perception is small, so it is set to stop filling air when the pressure reaches 18bar; when the vehicle speed is lower than the speed threshold, in order to avoid the user from constantly hearing the air pump noise, it is set to stop filling air when the pressure reaches only 15bar.

[0092] In this embodiment, the conditions for stopping the gas replenishment are described, and the setting of each condition for stopping the gas replenishment is based on improving the user's driving experience.

[0093] Step 250: If the condition for stopping gas replenishment is met, the air pump is controlled to stop replenishing gas to the gas storage tank, and the value of the first variable is updated to the value of the second pressure sensor to obtain the updated value of the first variable.

[0094] Furthermore, if the stop gas replenishment condition is met, the air pump is controlled to stop replenishing the gas tank, and the value of the first variable is updated with the value of the second pressure sensor to obtain the updated value of the first variable. That is, after the gas tank is replenished, the pressure value of the gas tank is updated and preserved in time.

[0095] In this embodiment, after the step of adjusting the air suspension to the target height, if the target numerical interval is the second interval or the third interval, the air pump is controlled to replenish air to the air tank; in the process of controlling the air pump to replenish air to the air tank, the vehicle speed and the value of the second pressure sensor arranged in the pipeline are obtained; in combination with the vehicle speed and the value of the second pressure sensor, it is detected whether the condition for stopping air replenishment is met; if the condition for stopping air replenishment is met, the air pump is controlled to stop replenishing air to the air tank, and the value of the first variable is updated to the value of the second pressure sensor to obtain the updated value of the first variable, thereby achieving an improved driving experience during the process of replenishing air in the air tank, and at the same time, after the air tank is replenished, the value of the variable is updated in time, thereby indirectly improving the adjustment efficiency.

[0096] Furthermore, in one embodiment, after the step of obtaining the updated value of the first variable, the method further includes:

[0097] Step 310: If the target value interval is the first interval, determine whether the updated value of the first variable is less than the third pressure threshold;

[0098] Step 320: If the updated value of the first variable is less than the third pressure threshold, obtain the vehicle speed, and determine whether the vehicle speed is greater than the speed threshold;

[0099] Step 330: When the vehicle speed is greater than the vehicle speed threshold, control the air pump to replenish air to the air storage tank;

[0100] It can be understood that if the target value interval is the first interval, it indicates that the gas in the air tank is relatively sufficient. After completing the air suspension adjustment, it is necessary to further determine whether the air tank needs to be refilled. Exemplarily, the third pressure threshold is 14bar, and the vehicle speed threshold is 30km / h. Assuming that the updated value of the first variable is 12bar, 12bar<14bar, the vehicle speed is further obtained to determine whether the vehicle speed is greater than 30km / h. If the vehicle speed is greater than 30km / h, air is sucked from the atmosphere through an air pump and compressed into the air tank to refill the air tank. It is also based on the fact that when the vehicle speed is higher than the speed threshold, the user can hardly feel the noise generated by the air pump refilling. At this time, the air pump is controlled to refill the air tank; when the vehicle speed is lower than the speed threshold, the user will always hear the noise of the air pump, the driving experience is poor, and no more air is refilled.

[0101] Step 340: While controlling the air pump to replenish the air storage tank with air, obtain a value of a third pressure sensor arranged in the pipeline;

[0102] Step 350: determine whether the value of the third pressure sensor is greater than the first pressure threshold;

[0103] Step 360: If the value of the third pressure sensor is greater than the first pressure threshold, control the air pump to stop replenishing air to the air storage tank;

[0104] Step 370: Update the value of the first variable to the value of the third pressure sensor to obtain an updated value of the first variable.

[0105] Furthermore, in the process of controlling the air pump to replenish the air tank, the value of the third pressure sensor arranged in the pipeline is obtained, so as to determine whether to stop replenishing the air through the value of the third pressure sensor. It can be understood that in the process of controlling the air pump to replenish the air tank, the air tank valve is in an open state, so the value of the third pressure sensor can be read. Exemplarily, the first pressure threshold is 18bar. If the value of the third pressure sensor is greater than 18bar, the air pump is controlled to stop replenishing the air tank, and the value of the first variable is updated with the value of the third pressure sensor to obtain the updated value of the first variable. That is, after the air tank is replenished, the pressure value of the air tank is updated and preserved in time.

[0106] In this embodiment, after the step of obtaining the updated value of the first variable, if the target value interval is the first interval, it is determined whether the updated value of the first variable is less than the third pressure threshold; if the updated value of the first variable is less than the third pressure threshold, the vehicle speed is obtained, and it is determined whether the vehicle speed is greater than the speed threshold; when the vehicle speed is greater than the speed threshold, the air pump is controlled to replenish the air tank with air; in the process of controlling the air pump to replenish the air tank with air, the value of the third pressure sensor arranged in the pipeline is obtained; it is determined whether the value of the third pressure sensor is greater than the first pressure threshold; if the value of the third pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing the air tank with air; the value of the first variable is updated to the value of the third pressure sensor to obtain the updated value of the first variable, thereby improving the driving experience during the process of replenishing the air tank, and at the same time, after the air tank is replenished with air, the value of the variable is updated in time, thereby indirectly improving the regulation efficiency.

[0107] Furthermore, in one embodiment, the method further includes:

[0108] Step 410: If no air suspension adjustment instruction is received, obtain the value of the first variable, and determine whether the value of the first variable is less than a third threshold;

[0109] Step 420: If the value of the first variable is less than the third threshold, obtain the vehicle speed, and determine whether the vehicle speed is greater than the speed threshold;

[0110] Step 430: If the vehicle speed is greater than the speed threshold, control the air pump to replenish air to the air storage tank;

[0111] In specific implementation, if the air suspension adjustment instruction is not received, that is, the air suspension does not need to be adjusted, the value of the first variable is used to determine whether the air tank needs to be refilled. Exemplarily, the third pressure threshold is 14bar, and the vehicle speed threshold is 30km / h. Assuming that the value of the first variable is 12bar, 12bar<14bar, the vehicle speed is further obtained to determine whether the vehicle speed is greater than 30km / h. If the vehicle speed is greater than 30km / h, air is sucked from the atmosphere through an air pump, compressed and then enters the air tank to refill the air tank. It is also based on the fact that when the vehicle speed is higher than the speed threshold, the user can hardly feel the noise generated by the air pump refilling. At this time, the air pump is controlled to refill the air tank; when the vehicle speed is lower than the speed threshold, the user will always hear the noise of the air pump, the driving experience is poor, and the vehicle may be in a power-off state. At this time, if the air pump is started to refill, the battery power will be consumed, resulting in a loss of power for the entire vehicle, and therefore no more refilling will be performed.

[0112] Step 440: in the process of controlling the air pump to replenish air to the air storage tank, obtaining a value of a fourth pressure sensor arranged in the pipeline;

[0113] Step 450, determining whether the value of the fourth pressure sensor is greater than the first pressure threshold;

[0114] Step 460: If the value of the fourth pressure sensor is greater than the first pressure threshold, control the air pump to stop replenishing air to the air storage tank;

[0115] Step 470: Update the value of the first variable to the value of the fourth pressure sensor to obtain an updated value of the first variable.

[0116] Furthermore, in the process of controlling the air pump to replenish the gas tank, the value of the fourth pressure sensor arranged in the pipeline is obtained, so as to determine whether to stop replenishing the gas through the value of the fourth pressure sensor. It can be understood that in the process of controlling the air pump to replenish the gas tank, the gas tank valve is in an open state, so the value of the fourth pressure sensor can be read. Exemplarily, the first pressure threshold is 18bar. If the value of the fourth pressure sensor is greater than 18bar, the air pump is controlled to stop replenishing the gas tank, and the value of the first variable is updated with the value of the fourth pressure sensor to obtain the updated value of the first variable. That is, after the gas tank is replenished, the gas tank pressure value is updated and preserved in time.

[0117] In this embodiment, if the air suspension adjustment instruction is not received, the value of the first variable is obtained, and it is determined whether the value of the first variable is less than the third threshold value; if the value of the first variable is less than the third threshold value, the vehicle speed is obtained, and it is determined whether the vehicle speed is greater than the speed threshold value; if the vehicle speed is greater than the speed threshold value, the air pump is controlled to replenish the air tank with air; in the process of controlling the air pump to replenish the air tank with air, the value of the fourth pressure sensor arranged in the pipeline is obtained; it is determined whether the value of the fourth pressure sensor is greater than the first pressure threshold value; if the value of the fourth pressure sensor is greater than the first pressure threshold value, the air pump is controlled to stop replenishing the air tank with air; the value of the first variable is updated to the value of the fourth pressure sensor, and the updated value of the first variable is obtained, so as to improve the driving experience during the process of replenishing the air tank with air, and at the same time, the value of the variable is updated in time after the air tank is replenished with air, thereby indirectly improving the adjustment efficiency.

[0118] Furthermore, in one embodiment, the method further includes:

[0119] Step 510: Detect whether the air suspension adjustment process is interrupted;

[0120] Step 520: If the detection result is interrupted, obtain the value of the fifth pressure sensor arranged in the pipeline;

[0121] Step 530: Update the value of the first variable to the value of the fifth pressure sensor to obtain an updated value of the first variable.

[0122] The interruption of the air suspension adjustment process refers to the sudden passive closure during the air suspension adjustment process. For example, when the air suspension is being raised, the user triggers the command to adjust the air suspension downward. At this time, the air suspension upward process is passively closed, and the air tank needs to be closed, and then the air suspension pressure relief valve is opened to release air to lower the height.

[0123] In specific implementation, whether the air suspension adjustment process is interrupted is determined by detecting whether the air suspension adjustment process receives the air suspension adjustment instruction again or the vehicle is powered off; if the detection result is interrupted, the value of the fifth pressure sensor arranged in the pipeline is obtained before closing the air tank; the value of the first variable is updated using the value of the fifth pressure sensor to obtain the updated value of the first variable.

[0124] In this embodiment, by detecting whether the air suspension adjustment process is interrupted; if the detection result is interrupted, obtaining the value of the fifth pressure sensor arranged in the pipeline; and updating the value of the first variable to the value of the fifth pressure sensor to obtain the updated value of the first variable, it is possible to timely update and save the air tank pressure value when the air suspension adjustment process is interrupted.

[0125] Furthermore, in one embodiment, the method further includes:

[0126] Step 610, detecting whether the gas tank gas replenishment process is interrupted;

[0127] Step 620: If the detection result is interrupted, obtain the value of the sixth pressure sensor arranged in the pipeline;

[0128] Step 630: Update the value of the first variable to the value of the sixth pressure sensor to obtain an updated value of the first variable.

[0129] The interruption of the air tank filling process refers to the sudden passive closure of the air tank filling process. For example, during the air tank filling process, the user triggers the air suspension adjustment command. At this time, the vehicle will respond to the air suspension adjustment request first, and the air tank filling process is passively closed.

[0130] In specific implementation, whether the air tank filling process is interrupted is determined by detecting whether the air suspension adjustment instruction is received again or the vehicle is powered off during the filling process of the air tank; if the detection result is interrupted, before closing the air tank, the value of the sixth pressure sensor arranged in the pipeline is obtained; the value of the first variable is updated using the value of the sixth pressure sensor to obtain the updated value of the first variable.

[0131] In this embodiment, it is detected whether the gas filling process of the gas storage tank is interrupted; if the detection result is interrupted, the value of the sixth pressure sensor arranged in the pipeline is obtained; the value of the first variable is updated to the value of the sixth pressure sensor to obtain the updated value of the first variable, so that when the gas filling process of the gas storage tank is interrupted, the gas storage tank pressure value can be updated and preserved in time.

[0132] Figure 3 A second flow chart of a method for controlling the pressure of a vehicle air suspension tank provided by an embodiment of the present application is shown in FIG. Figure 3 As shown, the recorded value of the air tank pressure is the value of the first variable, and the air suspension adjustment mode can be determined according to the recorded value of the air tank pressure. At the same time, after the adjustment is completed, the value of the variable is updated in time; after the air tank is replenished, the value of the variable is updated in time; when the air tank is replenished or the air suspension adjustment process is interrupted, the air tank pressure value is updated and saved in time, which directly or indirectly improves the adjustment efficiency.

[0133] In a second aspect, an embodiment of the present application also provides a vehicle air suspension air tank pressure control device.

[0134] In one embodiment, referring to Figure 4 , Figure 4This is a functional module diagram of an embodiment of a vehicle air suspension tank pressure control device of the present application. Figure 4 As shown, the vehicle air suspension tank pressure control device 400 includes:

[0135] The acquisition module 410 is used to acquire the value of the first variable after receiving the air suspension adjustment instruction, where the value of the first variable is the last recorded air tank pressure value;

[0136] an adjusting module 420, configured to determine a target value interval to which the value of the first variable belongs, and adjust the air suspension according to an air suspension adjustment method corresponding to the target value interval, so as to adjust the air suspension to a target height;

[0137] an updating module 430, configured to obtain a value of a first pressure sensor disposed in a pipeline when the target value interval is the first interval or the second interval, update the value of the first variable to the value of the first pressure sensor, and obtain an updated value of the first variable, wherein the pipeline is a pipeline formed by an air suspension, an air pump, and an air storage tank;

[0138] The updating module 430 is further configured to maintain the value of the first variable unchanged when the target value interval is a third interval;

[0139] The lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval.

[0140] Furthermore, in one embodiment, the adjustment module is specifically used for:

[0141] When the target value interval is the first interval, controlling the air storage tank to adjust the air suspension;

[0142] When the target value interval is the second interval, controlling the air storage tank and the air pump to adjust the air suspension;

[0143] When the target numerical value interval is the third interval, the air pump is controlled to adjust the air suspension.

[0144] Further, in one embodiment, the vehicle air suspension air tank pressure control device further includes an air replenishing module, wherein the air replenishing module is specifically used to control the air pump to replenish air to the air tank after the step of adjusting the air suspension to the target height if the target numerical interval is the second interval or the third interval;

[0145] In the process of controlling the air pump to replenish the air tank, the vehicle speed and the value of the second pressure sensor arranged in the pipeline are obtained;

[0146] Detecting whether a stop gas replenishment condition is met by combining the vehicle speed and the value of the second pressure sensor;

[0147] If the condition for stopping gas replenishment is met, the air pump is controlled to stop replenishing gas to the gas storage tank, and the value of the first variable is updated to the value of the second pressure sensor to obtain the updated value of the first variable.

[0148] Furthermore, in one embodiment, the gas replenishment stopping condition includes:

[0149] The vehicle speed is greater than the vehicle speed threshold and the value of the second pressure sensor is greater than the first pressure threshold;

[0150] And / or, the vehicle speed is less than a vehicle speed threshold and the value of the second pressure sensor is greater than a second pressure threshold; wherein the first pressure threshold is greater than the second pressure threshold.

[0151] Further, in one embodiment, the air replenishment module is further used to: after the step of obtaining the updated value of the first variable, if the target value interval is the first interval, determine whether the updated value of the first variable is less than a third pressure threshold;

[0152] If the updated value of the first variable is less than the third pressure threshold, obtaining the vehicle speed, and determining whether the vehicle speed is greater than the speed threshold;

[0153] When the vehicle speed is greater than the vehicle speed threshold, controlling the air pump to replenish air to the air storage tank;

[0154] In the process of controlling the air pump to replenish the air storage tank with air, a value of a third pressure sensor arranged in the pipeline is obtained;

[0155] Determining whether a value of the third pressure sensor is greater than a first pressure threshold;

[0156] If the value of the third pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing air to the air storage tank;

[0157] The value of the first variable is updated to the value of the third pressure sensor to obtain an updated value of the first variable.

[0158] Furthermore, in one embodiment, the air supply module is also used for:

[0159] If no air suspension adjustment instruction is received, obtaining a value of a first variable, and determining whether the value of the first variable is less than a third threshold;

[0160] If the value of the first variable is less than the third threshold, obtaining the vehicle speed, and determining whether the vehicle speed is greater than the speed threshold;

[0161] If the vehicle speed is greater than the speed threshold, control the air pump to replenish air in the air storage tank;

[0162] In the process of controlling the air pump to replenish air to the air storage tank, obtaining a value of a fourth pressure sensor arranged in the pipeline;

[0163] Determining whether a value of the fourth pressure sensor is greater than a first pressure threshold;

[0164] If the value of the fourth pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing air to the air storage tank;

[0165] The value of the first variable is updated to the value of the fourth pressure sensor to obtain an updated value of the first variable.

[0166] Furthermore, in one embodiment, the vehicle air suspension air tank pressure control device further includes a detection module, and the detection module is specifically used for:

[0167] Detect whether the air suspension adjustment process is interrupted;

[0168] If the detection result is interrupted, obtaining a value of a fifth pressure sensor arranged in the pipeline;

[0169] The value of the first variable is updated to the value of the fifth pressure sensor to obtain an updated value of the first variable.

[0170] Furthermore, in one embodiment, the detection module is also used for:

[0171] Check whether the gas tank refilling process is interrupted;

[0172] If the detection result is interrupted, obtaining a value of a sixth pressure sensor arranged in the pipeline;

[0173] The value of the first variable is updated to the value of the sixth pressure sensor to obtain an updated value of the first variable.

[0174] Among them, the functional implementation of each module in the above-mentioned vehicle air suspension air tank pressure control device corresponds to the various steps in the above-mentioned vehicle air suspension air tank pressure control method embodiment, and its functions and implementation processes will not be repeated here one by one.

[0175] In a third aspect, an embodiment of the present application provides a vehicle air suspension tank pressure control device, which may be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0176] Reference Figure 5 , Figure 5The hardware structure diagram of the vehicle air suspension tank pressure control device involved in the embodiment of the present application is shown in FIG. In the embodiment of the present application, the vehicle air suspension tank pressure control device may include a processor, a memory, a communication interface, and a communication bus.

[0177] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0178] The communication interface includes an input / output (I / O) interface, a physical interface, and a logical interface, etc., which are used to interconnect the components inside the vehicle air suspension tank pressure control device, and an interface used to interconnect the vehicle air suspension tank pressure control device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, an optical fiber interface, an ATM interface, etc.; the user device can be a display, a keyboard, etc.

[0179] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0180] The processor may be a general-purpose processor, which may call the vehicle air suspension tank pressure control program stored in the memory and execute the vehicle air suspension tank pressure control method provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the vehicle air suspension tank pressure control program is called may refer to the various embodiments of the vehicle air suspension tank pressure control method of the present application, which will not be described in detail here.

[0181] Those skilled in the art will understand that Figure 5 The hardware structure shown in the figure does not constitute a limitation on the present application, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0182] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0183] A vehicle air suspension air tank pressure control program is stored on a computer-readable storage medium of the present application, wherein when the vehicle air suspension air tank pressure control program is executed by a processor, the steps of the vehicle air suspension air tank pressure control method as described above are implemented.

[0184] Among them, the method implemented when the vehicle air suspension air tank pressure control program is executed can refer to the various embodiments of the vehicle air suspension air tank pressure control method of the present application, and will not be repeated here.

[0185] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0186] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0187] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0188] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0189] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0190] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0191] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vehicle air suspension tank pressure control method, characterized in that: The vehicle air suspension tank pressure control method comprises: After receiving the air suspension adjustment instruction, obtaining the value of the first variable, the value of the first variable being the last recorded air tank pressure value; determining a target value interval to which the value of the first variable belongs, and adjusting the air suspension according to an air suspension adjustment mode corresponding to the target value interval to adjust the air suspension to a target height; When the target value interval is the first interval or the second interval, obtaining a value of a first pressure sensor arranged in a pipeline, updating the value of the first variable to the value of the first pressure sensor, and obtaining an updated value of the first variable, wherein the pipeline is a pipeline formed by an air suspension, an air pump, and an air storage tank; When the target value interval is the third interval, maintaining the value of the first variable unchanged; The lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval.

2. The vehicle air suspension tank pressure control method according to claim 1, characterized in that: The adjusting the air suspension according to the air suspension adjustment mode corresponding to the target value range includes: When the target value interval is the first interval, controlling the air storage tank to adjust the air suspension; When the target value interval is the second interval, controlling the air storage tank and the air pump to adjust the air suspension; When the target numerical value interval is the third interval, the air pump is controlled to adjust the air suspension.

3. The vehicle air suspension tank pressure control method according to claim 1, characterized in that: After the step of adjusting the air suspension to the target height, also include: If the target value interval is the second interval or the third interval, the air pump is controlled to replenish air to the air storage tank; In the process of controlling the air pump to replenish the air tank, the vehicle speed and the value of the second pressure sensor arranged in the pipeline are obtained; Detecting whether a stop gas replenishment condition is met by combining the vehicle speed and the value of the second pressure sensor; If the condition for stopping gas replenishment is met, the air pump is controlled to stop replenishing gas to the gas storage tank, and the value of the first variable is updated to the value of the second pressure sensor to obtain the updated value of the first variable.

4. The vehicle air suspension tank pressure control method according to claim 3, characterized in that: The gas replenishment stopping conditions include: The vehicle speed is greater than the vehicle speed threshold and the value of the second pressure sensor is greater than the first pressure threshold; And / or, the vehicle speed is less than a vehicle speed threshold and the value of the second pressure sensor is greater than a second pressure threshold; wherein the first pressure threshold is greater than the second pressure threshold.

5. The vehicle air suspension tank pressure control method according to claim 1, characterized in that: After the step of obtaining the updated value of the first variable, the method further includes: If the target value interval is the first interval, determining whether the updated value of the first variable is less than a third pressure threshold; If the updated value of the first variable is less than the third pressure threshold, obtaining the vehicle speed, and determining whether the vehicle speed is greater than the speed threshold; When the vehicle speed is greater than the vehicle speed threshold, controlling the air pump to replenish air to the air storage tank; In the process of controlling the air pump to replenish the air storage tank with air, a value of a third pressure sensor arranged in the pipeline is obtained; Determining whether a value of the third pressure sensor is greater than a first pressure threshold; If the value of the third pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing air to the air storage tank; The value of the first variable is updated to the value of the third pressure sensor to obtain an updated value of the first variable.

6. The vehicle air suspension tank pressure control method according to claim 1, characterized in that: The method further comprises: If no air suspension adjustment instruction is received, obtaining a value of a first variable, and determining whether the value of the first variable is less than a third threshold; If the value of the first variable is less than the third threshold, obtaining the vehicle speed, and determining whether the vehicle speed is greater than the speed threshold; If the vehicle speed is greater than the speed threshold, control the air pump to replenish air in the air storage tank; In the process of controlling the air pump to replenish air to the air storage tank, obtaining a value of a fourth pressure sensor arranged in the pipeline; Determining whether a value of the fourth pressure sensor is greater than a first pressure threshold; If the value of the fourth pressure sensor is greater than the first pressure threshold, the air pump is controlled to stop replenishing air to the air storage tank; The value of the first variable is updated to the value of the fourth pressure sensor to obtain an updated value of the first variable.

7. The vehicle air suspension tank pressure control method according to claim 1 or 2, characterized in that: The method further comprises: Detect whether the air suspension adjustment process is interrupted; If the detection result is interrupted, obtaining a value of a fifth pressure sensor arranged in the pipeline; The value of the first variable is updated to the value of the fifth pressure sensor to obtain an updated value of the first variable.

8. The vehicle air suspension tank pressure control method according to any one of claims 3 to 6, characterized in that: The method further comprises: Check whether the gas tank refilling process is interrupted; If the detection result is interrupted, obtaining a value of a sixth pressure sensor arranged in the pipeline; The value of the first variable is updated to the value of the sixth pressure sensor to obtain an updated value of the first variable.

9. A vehicle air suspension tank pressure control device, characterized in that: The vehicle air suspension tank pressure control device comprises: An acquisition module, configured to acquire a value of a first variable after receiving an air suspension adjustment instruction, wherein the value of the first variable is a pressure value of the air storage tank recorded last time; an adjusting module, configured to determine a target value interval to which the value of the first variable belongs, and adjust the air suspension according to an air suspension adjustment method corresponding to the target value interval, so as to adjust the air suspension to a target height; an updating module, configured to obtain a value of a first pressure sensor disposed in a pipeline when the target value interval is the first interval or the second interval, update the value of the first variable to the value of the first pressure sensor, and obtain an updated value of the first variable, wherein the pipeline is a pipeline formed by an air suspension, an air pump, and an air storage tank; The updating module is further configured to maintain the value of the first variable unchanged when the target value interval is a third interval; The lower limit value of the first interval is higher than the upper limit value of the second interval, and the lower limit value of the second interval is higher than the upper limit value of the third interval.

10. A vehicle air suspension tank pressure control device, characterized in that: The vehicle air suspension tank pressure control device includes a processor, a memory, and a vehicle air suspension tank pressure control program stored in the memory and executable by the processor, wherein when the vehicle air suspension tank pressure control program is executed by the processor, the steps of the vehicle air suspension tank pressure control method as described in any one of claims 1 to 8 are implemented.

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