Commercial vehicle main suspension clearance adjuster control method, device and computer equipment

Abstract

The present application relates to a control method, device, computer equipment, storage medium and computer program product for a main suspension lash adjuster of a commercial vehicle. The method comprises: judging whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure; if the gas pressure in the lash adjuster at the current moment is greater than the first preset gas pressure, then from the current moment, the gas pressure in the lash adjuster is controlled to decrease until the gas pressure in the lash adjuster is not greater than the first preset gas pressure; if the gas pressure in the lash adjuster at the current moment is less than the second preset gas pressure, then from the current moment, the gas pressure in the lash adjuster is controlled to increase until the gas pressure in the lash adjuster is not less than the second preset gas pressure; thereby, the safety of the vehicle during driving can be improved; the use of the method can improve the safety of the vehicle during driving.

Description

Technical Field

[0001] The present application relates to the field of commercial vehicle control technology, and in particular to a control method, device, computer equipment, storage medium and computer program product for a main suspension clearance adjuster of a commercial vehicle. Background Art

[0002] When the clearance adjuster of a commercial vehicle is working, the commercial vehicle is often in a high-speed running state. When the commercial vehicle makes a sharp turn, the space between the main vehicle and the trailer of the commercial vehicle will change, thus causing safety problems; therefore, a control method for the main trailer clearance adjuster of a commercial vehicle is urgently needed. Summary of the invention

[0003] Based on this, it is necessary to provide a commercial vehicle main suspension clearance adjuster control method, device, computer equipment, computer readable storage medium and computer program product to address the above technical problems.

[0004] In a first aspect, the present application provides a method for controlling a main suspension clearance adjuster of a commercial vehicle. The method comprises:

[0005] When the vehicle is in motion, obtaining the gas pressure in the lash adjuster, wherein the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0006] Determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, wherein the first preset gas pressure is greater than the second preset gas pressure;

[0007] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0008] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0009] In one embodiment, a pressure sensor is installed in the clearance adjuster; accordingly, obtaining the gas pressure in the clearance adjuster includes:

[0010] determining a voltage signal transmitted by a pressure sensor within a lash adjuster;

[0011] Obtain a voltage and pressure relationship table of the pressure sensor;

[0012] Based on the voltage signal and the voltage-pressure relationship table, determine the gas pressure in the lash adjuster.

[0013] In one embodiment, a pressure limiting valve switch and a pressure limiting valve are provided in the vehicle, and the clearance adjuster is connected to the atmospheric pressure environment through the pressure limiting valve; and controlling the gas pressure in the clearance adjuster to decrease includes:

[0014] Obtaining a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and controlling the pressure limiting valve to open according to the pressure limiting valve opening signal;

[0015] The gas in the lash adjuster is discharged into the atmospheric pressure environment through the pressure limiting valve, so that the lash adjuster gas pressure is reduced.

[0016] In one embodiment, a solenoid valve switch, a solenoid valve and an air reservoir are provided in the vehicle, and the solenoid valve is connected to the clearance adjuster and the air reservoir respectively; controlling the clearance adjuster gas pressure to increase includes:

[0017] Acquire a solenoid valve opening signal triggered by a solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal;

[0018] The gas in the gas reservoir is discharged into the lash adjuster through the solenoid valve, so that the lash adjuster gas pressure increases.

[0019] In one embodiment, the vehicle is equipped with a vehicle controller; from the current moment, before the gas pressure in the lash adjuster is controlled to increase, the steps include:

[0020] Obtain the gas pressure in the gas tank;

[0021] Determine whether the gas pressure in the gas reservoir is less than the gas pressure in the lash adjuster at the current moment. If so, obtain a solenoid valve prohibition opening signal through the vehicle controller;

[0022] According to the solenoid valve opening prohibition signal, the solenoid valve is prohibited from opening.

[0023] In one embodiment, before determining whether the gas pressure in the lash adjuster is greater than the first preset gas pressure, the method further includes:

[0024] Get the steering angle of the vehicle;

[0025] In the case where the steering angle of the vehicle is greater than the preset angle, a step of determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure is performed.

[0026] In a second aspect, the present application also provides a control device for a main suspension clearance adjuster of a commercial vehicle. The device comprises:

[0027] An acquisition module is used to acquire the gas pressure in the clearance adjuster when the vehicle is in motion, and the clearance adjuster is installed between the main vehicle and the trailer of the vehicle;

[0028] a judgment module, used to judge whether the gas pressure in the clearance adjuster is greater than a first preset gas pressure, and whether the gas pressure in the clearance adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0029] A first control module, configured to control the gas pressure in the clearance adjuster to decrease from the current moment if the gas pressure in the clearance adjuster is greater than the first preset gas pressure, until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0030] The second control module is used to control the gas pressure in the clearance adjuster to increase from the current moment until the gas pressure in the clearance adjuster is not less than the second preset gas pressure if the gas pressure in the clearance adjuster is less than the second preset gas pressure.

[0031] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0032] When the vehicle is in motion, the gas pressure in the lash adjuster is obtained, and the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0033] determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0034] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0035] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0036] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0037] When the vehicle is in motion, the gas pressure in the lash adjuster is obtained, and the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0038] determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0039] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0040] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0041] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0042] When the vehicle is in motion, the gas pressure in the lash adjuster is obtained, and the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0043] determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0044] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0045] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0046] The above-mentioned commercial vehicle main trailer clearance adjuster control method, device, computer equipment, storage medium and computer program product, when the vehicle is in a driving state, by obtaining the gas pressure in the clearance adjuster, the clearance adjuster is installed between the main vehicle and the trailer of the vehicle; thereby, it can be judged whether the gas pressure in the clearance adjuster is greater than the first preset gas pressure, and whether the gas pressure in the clearance adjuster is less than the second preset gas pressure, the first preset gas pressure is greater than the second preset gas pressure; if the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is not greater than the first preset gas pressure; if the gas pressure in the clearance adjuster at the current moment is less than the second preset gas pressure, then from the current moment, the gas pressure in the clearance adjuster is controlled to increase until the gas pressure in the clearance adjuster is not less than the second preset gas pressure; thereby, the safety of the vehicle during driving can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of a flow chart of a method for controlling a main suspension clearance adjuster of a commercial vehicle in one embodiment;

[0048] Figure 2 is a schematic diagram of a gap adjuster in one embodiment;

[0049] Figure 3 A schematic diagram of connecting various components in an embodiment;

[0050] Figure 4 It is a flow chart of a control method of a main suspension clearance adjuster of a commercial vehicle in another embodiment;

[0051] Figure 5 is a structural block diagram of a main suspension clearance adjuster control device for a commercial vehicle in one embodiment;

[0052] Figure 6 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0054] It is understood that the terms "first", "second", etc. used in this application can be used in this article to describe various professional terms, but unless otherwise specified, these professional terms are not limited by these terms. These terms are only used to distinguish one professional term from another professional term. For example, without departing from the scope of this application, the third preset threshold and the fourth preset threshold can be the same or different.

[0055] In one embodiment, Figure 1 As shown, a control method for the main suspension clearance adjuster of a commercial vehicle is provided. This embodiment uses the method applied to a terminal as an example, wherein the terminal may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, Internet of Things devices, and portable wearable devices. The Internet of Things devices may be smart vehicle-mounted devices, etc. It is understandable that the method may also be applied to a server, and may also be applied to a system including a terminal and a server, and may be implemented through the interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0056] 101. When the vehicle is in motion, obtain the gas pressure in the lash adjuster, the lash adjuster being installed between the main vehicle and the trailer of the vehicle;

[0057] 102. Determine whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0058] 103. If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0059] 104. If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0060] In the above step 101, the gap adjuster is as follows Figure 2 As shown, the clearance adjuster is used to adjust the relative movement between the vehicle main vehicle and the trailer; when in a non-working state, the gas in the clearance adjuster is discharged; when in a working state, the clearance adjuster contains an appropriate amount of gas, and the gas pressure in the clearance adjuster increases.

[0061] Specifically, when the vehicle is driving, the vehicle controller obtains the gas pressure in the clearance adjuster in real time, and compares the gas pressure in the clearance adjuster obtained at each moment with the first preset gas pressure and the second preset gas pressure respectively; when the gas pressure in the clearance adjuster is greater than the first preset gas pressure at any moment, the gas pressure in the clearance adjuster is controlled to decrease with the corresponding moment as the starting moment, until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure, and the operation of controlling the gas pressure in the clearance adjuster to decrease is stopped.

[0062] When the gas pressure in the lash adjuster is less than the second preset gas pressure at any time, the gas pressure in the lash adjuster is controlled to increase with the corresponding time as the starting time until the gas pressure in the lash adjuster is no greater than the first preset gas pressure, and then the operation of controlling the gas pressure in the lash adjuster to increase is stopped.

[0063] The method provided by the embodiment of the present invention can determine whether the gas pressure in the lash adjuster needs to be adjusted by obtaining the gas pressure in the lash adjuster in real time, thereby maintaining the gas pressure in the lash adjuster within a stable pressure range, thereby improving the safety of the vehicle during driving.

[0064] In combination with the contents of the above embodiments, in one embodiment, a pressure sensor is installed in the clearance adjuster; accordingly, obtaining the gas pressure in the clearance adjuster includes:

[0065] determining a voltage signal transmitted by a pressure sensor within a lash adjuster;

[0066] Obtain a voltage and pressure relationship table of the pressure sensor;

[0067] The gas pressure in the lash adjuster is determined based on the voltage signal and the voltage-pressure relationship table.

[0068] The pressure sensor refers to a gas pressure sensor. The voltage-pressure relationship table is stored in the vehicle's memory. Specifically, the pressure sensor is connected to the vehicle controller, and the pressure sensor transmits a real-time voltage signal to the vehicle controller. The vehicle controller can determine the real-time gas pressure in the clearance adjuster based on the real-time received voltage signal and by querying the voltage-pressure relationship table.

[0069] The method provided in the embodiment of the present invention can obtain the real-time gas pressure in the clearance adjuster through the pressure sensor installed in the clearance adjuster, so as to determine the state of the gas in the clearance adjuster in real time and adjust the gas in the clearance adjuster in time.

[0070] In combination with the contents of the above embodiments, in one embodiment, a pressure limiting valve switch and a pressure limiting valve are provided in the vehicle, and the clearance adjuster is connected to the atmospheric pressure environment through the pressure limiting valve; controlling the gas pressure in the clearance adjuster to decrease includes:

[0071] Obtaining a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and controlling the pressure limiting valve to open according to the pressure limiting valve opening signal;

[0072] The gas in the lash adjuster is discharged into the atmospheric pressure environment through the pressure limiting valve, so that the lash adjuster gas pressure is reduced.

[0073] The pressure limiting valve switch is installed in the cab, and the pressure limiting valve switch can be controlled by the driver or by the vehicle controller. For example, when the vehicle controller determines that the pressure limiting valve needs to be opened, the pressure limiting valve can be controlled to open by controlling the pressure limiting valve switch; or when the driver determines that the pressure limiting valve needs to be opened, the pressure limiting valve switch can be manually operated to open the pressure limiting valve.

[0074] Specifically, when the pressure limiting valve receives a pressure limiting valve opening signal, the pressure limiting valve opens. At this time, the gas in the clearance adjuster is discharged into the atmosphere through the pressure limiting valve until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure. Then, the pressure limiting valve switch is controlled to trigger a pressure limiting valve closing signal. Through the pressure limiting valve closing signal, the pressure limiting valve is controlled to close.

[0075] The method provided in the embodiment of the present invention can discharge the gas in the lash adjuster into the atmospheric pressure environment by controlling the opening of the pressure limiting valve, thereby reducing the gas pressure in the lash adjuster, thereby allowing the vehicle to drive safely.

[0076] In combination with the contents of the above embodiments, in one embodiment, a solenoid valve switch, a solenoid valve and an air reservoir are provided in the vehicle, and the solenoid valve is connected to the clearance adjuster and the air reservoir respectively; controlling the clearance adjuster gas pressure to increase includes:

[0077] Acquire a solenoid valve opening signal triggered by a solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal;

[0078] The gas in the gas reservoir is discharged into the lash adjuster through the solenoid valve, so that the lash adjuster gas pressure increases.

[0079] The solenoid valve switch is installed in the cab, and the solenoid valve switch can be controlled by the driver or by the vehicle controller. For example, when the vehicle controller determines that the solenoid valve needs to be opened, the solenoid valve can be controlled to open by controlling the solenoid valve switch; or when the driver determines that the solenoid valve needs to be opened, the solenoid valve switch can be manually operated to open the solenoid valve.

[0080] Specifically, when the solenoid valve receives the solenoid valve opening signal, the solenoid valve opens. At this time, the gas in the gas cylinder is discharged into the clearance adjuster through the solenoid valve until the gas pressure in the clearance adjuster is not less than the second preset gas pressure. Then, the solenoid valve switch is controlled to trigger the solenoid valve closing signal, and the solenoid valve is controlled to close through the solenoid valve closing signal.

[0081] The method provided in the embodiment of the present invention can discharge the gas in the gas reservoir into the lash adjuster by controlling the opening of the solenoid valve, thereby increasing the gas pressure in the lash adjuster, thereby allowing the vehicle to drive safely.

[0082] In combination with the contents of the above embodiments, in one embodiment, the vehicle is equipped with a vehicle controller; from the current moment, before the gas pressure in the clearance adjuster is controlled to increase, the steps include:

[0083] Obtain the gas pressure in the gas tank;

[0084] Determine whether the gas pressure in the gas reservoir is less than the gas pressure in the lash adjuster at the current moment. If so, obtain a solenoid valve prohibition opening signal through the vehicle controller;

[0085] According to the solenoid valve opening prohibition signal, the solenoid valve is prohibited from opening.

[0086] Specifically, if the gas pressure in the gas reservoir is lower than the gas pressure in the lash adjuster at the current moment, the gas reservoir should be prohibited from discharging gas into the lash adjuster, and the solenoid valve should be prohibited from opening through the solenoid valve prohibition opening signal. When the solenoid valve is prohibited from opening, the solenoid valve cannot be opened even if it receives the solenoid valve opening signal.

[0087] The method provided in the embodiment of the present invention can determine whether the gas pressure in the gas cylinder is less than the gas pressure in the lash adjuster at the current moment by obtaining the gas pressure in the gas cylinder, thereby improving the safety of the gas cylinder in the process of exhausting gas into the lash adjuster.

[0088] In combination with the above embodiments, in one embodiment, before determining whether the gas pressure in the clearance adjuster is greater than the first preset gas pressure, the method further includes:

[0089] Get the steering angle of the vehicle;

[0090] In the case where the steering angle of the vehicle is greater than the preset angle, a step of determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure is performed.

[0091] Specifically, when the steering angle of the vehicle is greater than a preset angle, the lash adjuster will be compressed, and the gas pressure in the lash adjuster will increase. At this time, it is necessary to open the pressure limiting valve to discharge part of the lash adjuster to reduce the gas pressure in the lash adjuster. In addition, the increase in gas pressure in the lash adjuster may also occur in other situations, such as sudden braking of the vehicle.

[0092] It is worth mentioning that Figure 3 As shown, the air storage cylinder and the solenoid valve, the solenoid valve and the clearance adjuster, and the clearance adjuster and the pressure limiting valve of the present application are all mechanically connected, and the pressure limiting valve switch and the pressure limiting valve, and the solenoid valve switch and the solenoid valve are all electrically connected.

[0093] The method provided by the embodiment of the present invention can determine whether the gas in the lash adjuster is compressed by acquiring the steering angle of the vehicle, thereby determining the driving state of the vehicle.

[0094] In combination with the contents of the above embodiments, in one embodiment, Figure 4 As shown, a control method for a main suspension clearance adjuster of a commercial vehicle further includes:

[0095] 401. When the gas pressure in the gas reservoir is not greater than the gas pressure in the clearance adjuster, the vehicle controller prohibits the solenoid valve from opening to ensure that the gas pressure in the gas reservoir does not decrease;

[0096] 402. When the vehicle makes a sharp turn, the lash adjuster will be compressed, causing the gas pressure in the lash adjuster to increase;

[0097] 403. When the gas pressure in the clearance adjuster is higher than the preset gas pressure, the pressure limiting valve switch controls the pressure limiting valve to open, and discharges part of the gas in the clearance adjuster into the atmosphere through the pressure limiting valve.

[0098] The method provided in the embodiment of the present invention controls the opening of the pressure limiting valve by means of a pressure limiting valve switch, so that part of the gas in the clearance adjuster can be discharged into the atmosphere through the pressure limiting valve, thereby reducing the gas pressure in the clearance adjuster and further improving the safety of the vehicle during driving.

[0099] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0100] Based on the same inventive concept, the embodiment of the present application also provides a commercial vehicle main hitch clearance adjuster control device for implementing the commercial vehicle main hitch clearance adjuster control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more commercial vehicle main hitch clearance adjuster control device embodiments provided below can refer to the limitations of the commercial vehicle main hitch clearance adjuster control method above, and will not be repeated here.

[0101] In one embodiment, Figure 5 As shown, a control device for a main suspension clearance adjuster of a commercial vehicle is provided, comprising: an acquisition module 501, a judgment module 502, a first control module 503 and a second control module 504, wherein:

[0102] The acquisition module 501 is used to acquire the gas pressure in the clearance adjuster when the vehicle is in motion, and the clearance adjuster is installed between the main vehicle and the trailer of the vehicle;

[0103] A determination module 502 is used to determine whether the gas pressure in the clearance adjuster is greater than a first preset gas pressure, and whether the gas pressure in the clearance adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0104] A first control module 503 is used for controlling the gas pressure in the clearance adjuster to decrease from the current moment until the gas pressure in the clearance adjuster is not greater than the first preset gas pressure if the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure;

[0105] The second control module 504 is used to control the gas pressure in the lash adjuster to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure if the gas pressure in the lash adjuster is less than the second preset gas pressure.

[0106] In one embodiment, the acquisition module 501 includes:

[0107] A first determination submodule, for determining a voltage signal transmitted by a pressure sensor in the lash adjuster;

[0108] A first acquisition submodule is used to acquire a voltage and pressure relationship table of the pressure sensor;

[0109] The second determination submodule is used to determine the gas pressure in the clearance adjuster according to the voltage signal and the voltage-pressure relationship table.

[0110] In one embodiment, the first control module 503 includes:

[0111] A second acquisition submodule is used to acquire a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and control the pressure limiting valve to open according to the pressure limiting valve opening signal;

[0112] The reduction module is used to discharge the gas in the clearance adjuster into the atmospheric pressure environment through the pressure limiting valve, so that the gas pressure of the clearance adjuster is reduced.

[0113] In one embodiment, the second control module 504 includes:

[0114] The third acquisition submodule is used to acquire the solenoid valve opening signal triggered by the solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal;

[0115] The increasing module is used to discharge the gas in the gas reservoir into the clearance adjuster through the solenoid valve, so as to increase the gas pressure of the clearance adjuster.

[0116] In one embodiment, the second control module 504 further includes:

[0117] The fourth acquisition submodule is used to obtain the gas pressure in the gas storage cylinder;

[0118] The judgment submodule is used to judge whether the gas pressure in the gas reservoir is less than the gas pressure in the clearance adjuster at the current moment. If so, a solenoid valve prohibition opening signal is obtained through the vehicle controller;

[0119] The prohibition submodule is used to prohibit the solenoid valve from opening according to the solenoid valve prohibition opening signal.

[0120] In one embodiment, the determination module 502 includes:

[0121] A fifth acquisition submodule, used to acquire a steering angle of the vehicle;

[0122] The execution submodule is used to execute the step of determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure when the steering angle of the vehicle is greater than a preset angle.

[0123] Each module in the above commercial vehicle main suspension clearance adjuster control device can be implemented in whole or in part by software, hardware and their combination. Each module can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0124] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a control method for a main suspension gap adjuster of a commercial vehicle is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0125] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0126] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0127] When the vehicle is in motion, the gas pressure in the lash adjuster is obtained, and the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0128] determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0129] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0130] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0131] In one embodiment, when the processor executes the computer program, the following steps are also implemented:

[0132] determining a voltage signal transmitted by a pressure sensor within a lash adjuster;

[0133] Obtain a voltage and pressure relationship table of the pressure sensor;

[0134] Based on the voltage signal and the voltage-pressure relationship table, determine the gas pressure in the lash adjuster.

[0135] In one embodiment, when the processor executes the computer program, the following steps are also implemented:

[0136] Obtaining a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and controlling the pressure limiting valve to open according to the pressure limiting valve opening signal;

[0137] The gas in the lash adjuster is discharged into the atmospheric pressure environment through the pressure limiting valve, so that the lash adjuster gas pressure is reduced.

[0138] In one embodiment, when the processor executes the computer program, the following steps are also implemented:

[0139] Acquire a solenoid valve opening signal triggered by a solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal;

[0140] The gas in the gas reservoir is discharged into the lash adjuster through the solenoid valve, so that the lash adjuster gas pressure increases.

[0141] In one embodiment, when the processor executes the computer program, the following steps are also implemented:

[0142] Obtain the gas pressure in the gas tank;

[0143] Determine whether the gas pressure in the gas reservoir is less than the gas pressure in the lash adjuster at the current moment. If so, obtain a solenoid valve prohibition opening signal through the vehicle controller;

[0144] According to the solenoid valve opening prohibition signal, the solenoid valve is prohibited from opening.

[0145] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0146] Get the vehicle's steering angle;

[0147] In the case where the steering angle of the vehicle is greater than the preset angle, a step of determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure is performed.

[0148] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0149] When the vehicle is in motion, the gas pressure in the lash adjuster is obtained, and the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0150] determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0151] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0152] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0153] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0154] determining a voltage signal transmitted by a pressure sensor within a lash adjuster;

[0155] Obtain a voltage and pressure relationship table of the pressure sensor;

[0156] The gas pressure in the lash adjuster is determined based on the voltage signal and the voltage-pressure relationship table.

[0157] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0158] Obtaining a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and controlling the pressure limiting valve to open according to the pressure limiting valve opening signal;

[0159] The gas in the lash adjuster is discharged into the atmospheric pressure environment through the pressure limiting valve, so that the lash adjuster gas pressure is reduced.

[0160] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0161] Acquire a solenoid valve opening signal triggered by a solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal;

[0162] The gas in the gas reservoir is discharged into the lash adjuster through the solenoid valve, so that the lash adjuster gas pressure increases.

[0163] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0164] Get the gas pressure in the gas tank;

[0165] Determine whether the gas pressure in the gas reservoir is less than the gas pressure in the lash adjuster at the current moment. If so, obtain a solenoid valve prohibition opening signal through the vehicle controller;

[0166] According to the solenoid valve opening prohibition signal, the solenoid valve is prohibited from opening.

[0167] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0168] Get the vehicle's steering angle;

[0169] In the case where the steering angle of the vehicle is greater than the preset angle, a step of determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure is performed.

[0170] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0171] When the vehicle is in motion, the gas pressure in the lash adjuster is obtained, and the lash adjuster is installed between the main vehicle and the trailer of the vehicle;

[0172] determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure;

[0173] If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure;

[0174] If the gas pressure in the lash adjuster is less than the second preset gas pressure at the current moment, the gas pressure in the lash adjuster is controlled to increase from the current moment until the gas pressure in the lash adjuster is not less than the second preset gas pressure.

[0175] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0176] determining a voltage signal transmitted by a pressure sensor within a lash adjuster;

[0177] Obtain a voltage and pressure relationship table of the pressure sensor;

[0178] The gas pressure in the lash adjuster is determined based on the voltage signal and the voltage-pressure relationship table.

[0179] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0180] Obtaining a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and controlling the pressure limiting valve to open according to the pressure limiting valve opening signal;

[0181] The gas in the lash adjuster is discharged into the atmospheric pressure environment through the pressure limiting valve, so that the lash adjuster gas pressure is reduced.

[0182] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0183] Acquire a solenoid valve opening signal triggered by a solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal;

[0184] The gas in the gas reservoir is discharged into the lash adjuster through the solenoid valve, so that the lash adjuster gas pressure increases.

[0185] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0186] Get the gas pressure in the gas tank;

[0187] Determine whether the gas pressure in the gas reservoir is less than the gas pressure in the lash adjuster at the current moment. If so, obtain a solenoid valve prohibition opening signal through the vehicle controller;

[0188] According to the solenoid valve opening prohibition signal, the solenoid valve is prohibited from opening.

[0189] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0190] Get the vehicle's steering angle;

[0191] In the case where the steering angle of the vehicle is greater than the preset angle, a step of determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure is performed.

[0192] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0193] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0194] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0195] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for controlling a main suspension clearance adjuster of a commercial vehicle, characterized in that: The method comprises: When the vehicle is in motion, obtaining the gas pressure in a clearance adjuster, the clearance adjuster being installed between the main vehicle and the trailer of the vehicle; determining whether the gas pressure in the lash adjuster is greater than a first preset gas pressure, and whether the gas pressure in the lash adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure; If the gas pressure in the clearance adjuster at the current moment is greater than the first preset gas pressure, then from the current moment on, the gas pressure in the clearance adjuster is controlled to decrease until the gas pressure in the clearance adjuster is no greater than the first preset gas pressure; If the gas pressure in the lash adjuster at the current moment is less than the second preset gas pressure, then from the current moment on, the gas pressure in the lash adjuster is controlled to increase until the gas pressure in the lash adjuster is not less than the second preset gas pressure; Wherein, a pressure sensor is installed in the clearance adjuster; accordingly, obtaining the gas pressure in the clearance adjuster includes: determining a voltage signal transmitted by a pressure sensor within the lash adjuster; Obtaining a voltage-pressure relationship table of the pressure sensor; determining the gas pressure in the lash adjuster according to the voltage signal and the voltage-pressure relationship table; The vehicle is provided with a pressure limiting valve switch and a pressure limiting valve, and the clearance adjuster is connected to the atmospheric pressure environment through the pressure limiting valve; the gas pressure in the clearance adjuster is controlled to decrease, including: Acquire a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and control the pressure limiting valve to open according to the pressure limiting valve opening signal; The gas in the lash adjuster is discharged into an atmospheric pressure environment through the pressure limiting valve, so that the gas pressure of the lash adjuster is reduced.

2. The method according to claim 1, characterized in that: The vehicle is provided with a solenoid valve switch, a solenoid valve and an air reservoir, wherein the solenoid valve is connected to the clearance adjuster and the air reservoir respectively; the step of controlling the gas pressure of the clearance adjuster to increase includes: Acquire a solenoid valve opening signal triggered by the solenoid valve switch, and control the solenoid valve to open according to the solenoid valve opening signal; The gas in the gas reservoir is discharged into the lash adjuster through the solenoid valve, so that the gas pressure of the lash adjuster is increased.

3. The method according to claim 2, characterized in that The vehicle is equipped with a vehicle controller; and before the gas pressure in the lash adjuster is controlled to increase from the current moment, the method includes: Obtaining the gas pressure in the gas storage cylinder; Determine whether the gas pressure in the gas reservoir is less than the gas pressure in the clearance adjuster at the current moment, and if so, obtain a solenoid valve opening prohibition signal through the vehicle controller; The solenoid valve is prohibited from opening according to the solenoid valve opening prohibition signal.

4. The method according to claim 3, characterized in that Before determining whether the gas pressure in the clearance adjuster is greater than the first preset gas pressure, the method further includes: Obtaining a steering angle of the vehicle; In a case where the steering angle of the vehicle is greater than a preset angle, a step of determining whether the gas pressure in the lash adjuster is greater than the first preset gas pressure is performed.

5. A control device for a main suspension clearance adjuster of a commercial vehicle, characterized in that: The device comprises: An acquisition module, used for acquiring the gas pressure in a clearance adjuster when the vehicle is in motion, the clearance adjuster being installed between the main vehicle and the trailer of the vehicle; a judgment module, used to judge whether the gas pressure in the clearance adjuster is greater than a first preset gas pressure, and whether the gas pressure in the clearance adjuster is less than a second preset gas pressure, the first preset gas pressure being greater than the second preset gas pressure; a first control module, configured to control the gas pressure in the clearance adjuster to decrease from the current moment until the gas pressure in the clearance adjuster is not greater than the first preset gas pressure if the gas pressure in the clearance adjuster is greater than the first preset gas pressure at the current moment; a second control module, configured to control the gas pressure in the clearance adjuster to increase from the current moment until the gas pressure in the clearance adjuster is not less than the second preset gas pressure if the gas pressure in the clearance adjuster is less than the second preset gas pressure at the current moment; Wherein, a pressure sensor is installed in the clearance adjuster; and the acquisition module comprises: A first determination submodule, configured to determine a voltage signal transmitted by a pressure sensor in the lash adjuster; A first acquisition submodule, used to acquire a voltage and pressure relationship table of the pressure sensor; a second determination submodule, configured to determine the gas pressure in the lash adjuster according to the voltage signal and the voltage-pressure relationship table; The vehicle is provided with a pressure limiting valve switch and a pressure limiting valve, and the clearance adjuster is connected to the atmospheric pressure environment through the pressure limiting valve; the first control module includes: A second acquisition submodule is used to acquire a pressure limiting valve opening signal triggered by the pressure limiting valve switch, and control the pressure limiting valve to open according to the pressure limiting valve opening signal; The reducing module is used to discharge the gas in the clearance adjuster into the atmospheric pressure environment through the pressure limiting valve, so that the gas pressure of the clearance adjuster is reduced.

6. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium having a computer program stored thereon, 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 4 are implemented.

8. A computer program product, comprising 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 4 are implemented.

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